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-rw-r--r--evaluation test/README7
-rw-r--r--evaluation test/index.html18
-rw-r--r--evaluation test/test.js998
-rw-r--r--evaluation test/test_bundle.js6554
4 files changed, 7577 insertions, 0 deletions
diff --git a/evaluation test/README b/evaluation test/README
new file mode 100644
index 0000000..074a524
--- /dev/null
+++ b/evaluation test/README
@@ -0,0 +1,7 @@
+The file test.js is set up to run the same code that the background script uses to evaluate Javascript.
+
+To use, copy the appropriate functions from main_background.js ("full_evaluate" and anything that it references). Then, build the script with browserify by running:
+
+browserify test.js -o test_bundle.js
+
+and load the file "index.js" with a web browser.
diff --git a/evaluation test/index.html b/evaluation test/index.html
new file mode 100644
index 0000000..e352507
--- /dev/null
+++ b/evaluation test/index.html
@@ -0,0 +1,18 @@
+<!doctype html>
+
+<head>
+</head>
+<body>
+ <script src="test_bundle.js"></script>
+
+This page allows us to test Acorn and it isn't slow and terrible like websites that do the same thing
+
+<br><br><br>
+
+<textarea id="input" rows="4" cols="50"></textarea>
+<br>
+<input id="parse" type="button" value="Parse"></input>
+<br>
+<pre id="output"></pre>
+
+</body>
diff --git a/evaluation test/test.js b/evaluation test/test.js
new file mode 100644
index 0000000..4e10d8a
--- /dev/null
+++ b/evaluation test/test.js
@@ -0,0 +1,998 @@
+var acorn = require('acorn/dist/acorn_loose');
+var walk = require("acorn/dist/walk");
+var acorn_base = require("acorn");
+
+var fname_data = {
+ "WebGLShader": true,
+ "WebGLShaderPrecisionFormat": true,
+ "WebGLQuery": true,
+ "WebGLRenderbuffer": true,
+ "WebGLSampler": true,
+ "WebGLUniformLocation": true,
+ "WebGLFramebuffer": true,
+ "WebGLProgram": true,
+ "WebGLContextEvent": true,
+ "WebGL2RenderingContext": true,
+ "WebGLTexture": true,
+ "WebGLRenderingContext": true,
+ "WebGLVertexArrayObject": true,
+ "WebGLActiveInfo": true,
+ "WebGLTransformFeedback": true,
+ "WebGLSync": true,
+ "WebGLBuffer": true,
+ "cat_svg": true,
+ "SVGPoint": true,
+ "SVGEllipseElement": true,
+ "SVGRadialGradientElement": true,
+ "SVGComponentTransferFunctionElement": true,
+ "SVGPathSegCurvetoQuadraticAbs": true,
+ "SVGAnimatedNumberList": true,
+ "SVGPathSegCurvetoQuadraticSmoothRel": true,
+ "SVGFEColorMatrixElement": true,
+ "SVGPathSegLinetoHorizontalAbs": true,
+ "SVGLinearGradientElement": true,
+ "SVGStyleElement": true,
+ "SVGPathSegMovetoRel": true,
+ "SVGStopElement": true,
+ "SVGPathSegLinetoRel": true,
+ "SVGFEConvolveMatrixElement": true,
+ "SVGAnimatedAngle": true,
+ "SVGPathSegLinetoAbs": true,
+ "SVGPreserveAspectRatio": true,
+ "SVGFEOffsetElement": true,
+ "SVGFEImageElement": true,
+ "SVGFEDiffuseLightingElement": true,
+ "SVGAnimatedNumber": true,
+ "SVGTextElement": true,
+ "SVGFESpotLightElement": true,
+ "SVGFEMorphologyElement": true,
+ "SVGAngle": true,
+ "SVGScriptElement": true,
+ "SVGFEDropShadowElement": true,
+ "SVGPathSegArcRel": true,
+ "SVGNumber": true,
+ "SVGPathSegLinetoHorizontalRel": true,
+ "SVGFEFuncBElement": true,
+ "SVGClipPathElement": true,
+ "SVGPathSeg": true,
+ "SVGUseElement": true,
+ "SVGPathSegArcAbs": true,
+ "SVGPathSegCurvetoQuadraticSmoothAbs": true,
+ "SVGRect": true,
+ "SVGAnimatedPreserveAspectRatio": true,
+ "SVGImageElement": true,
+ "SVGAnimatedEnumeration": true,
+ "SVGAnimatedLengthList": true,
+ "SVGFEFloodElement": true,
+ "SVGFECompositeElement": true,
+ "SVGAElement": true,
+ "SVGAnimatedBoolean": true,
+ "SVGMaskElement": true,
+ "SVGFilterElement": true,
+ "SVGPathSegLinetoVerticalRel": true,
+ "SVGAnimatedInteger": true,
+ "SVGTSpanElement": true,
+ "SVGMarkerElement": true,
+ "SVGStringList": true,
+ "SVGTransform": true,
+ "SVGTitleElement": true,
+ "SVGFEBlendElement": true,
+ "SVGTextPositioningElement": true,
+ "SVGFEFuncGElement": true,
+ "SVGFEPointLightElement": true,
+ "SVGAnimateElement": true,
+ "SVGPolylineElement": true,
+ "SVGDefsElement": true,
+ "SVGPathSegList": true,
+ "SVGAnimatedTransformList": true,
+ "SVGPathSegClosePath": true,
+ "SVGGradientElement": true,
+ "SVGSwitchElement": true,
+ "SVGViewElement": true,
+ "SVGUnitTypes": true,
+ "SVGPathSegMovetoAbs": true,
+ "SVGSymbolElement": true,
+ "SVGFEFuncAElement": true,
+ "SVGAnimatedString": true,
+ "SVGFEMergeElement": true,
+ "SVGPathSegLinetoVerticalAbs": true,
+ "SVGAnimationElement": true,
+ "SVGPathSegCurvetoCubicAbs": true,
+ "SVGLength": true,
+ "SVGTextPathElement": true,
+ "SVGPolygonElement": true,
+ "SVGAnimatedRect": true,
+ "SVGPathSegCurvetoCubicRel": true,
+ "SVGFEFuncRElement": true,
+ "SVGLengthList": true,
+ "SVGTextContentElement": true,
+ "SVGFETurbulenceElement": true,
+ "SVGMatrix": true,
+ "SVGZoomAndPan": true,
+ "SVGMetadataElement": true,
+ "SVGFEDistantLightElement": true,
+ "SVGAnimateMotionElement": true,
+ "SVGDescElement": true,
+ "SVGPathSegCurvetoCubicSmoothRel": true,
+ "SVGFESpecularLightingElement": true,
+ "SVGFEGaussianBlurElement": true,
+ "SVGFEComponentTransferElement": true,
+ "SVGNumberList": true,
+ "SVGTransformList": true,
+ "SVGForeignObjectElement": true,
+ "SVGRectElement": true,
+ "SVGFEDisplacementMapElement": true,
+ "SVGAnimateTransformElement": true,
+ "SVGAnimatedLength": true,
+ "SVGPointList": true,
+ "SVGPatternElement": true,
+ "SVGPathSegCurvetoCubicSmoothAbs": true,
+ "SVGCircleElement": true,
+ "SVGSetElement": true,
+ "SVGFETileElement": true,
+ "SVGMPathElement": true,
+ "SVGFEMergeNodeElement": true,
+ "SVGPathSegCurvetoQuadraticRel": true,
+ "SVGElement": true,
+ "SVGGraphicsElement": true,
+ "SVGSVGElement": true,
+ "SVGGElement": true,
+ "SVGGeometryElement": true,
+ "SVGPathElement": true,
+ "SVGLineElement": true,
+ "cat_html": true,
+ "HTMLTimeElement": true,
+ "HTMLPictureElement": true,
+ "HTMLMenuItemElement": true,
+ "HTMLFormElement": true,
+ "HTMLOptionElement": true,
+ "HTMLCanvasElement": true,
+ "HTMLTableSectionElement": true,
+ "HTMLSelectElement": true,
+ "HTMLUListElement": true,
+ "HTMLMetaElement": true,
+ "HTMLLinkElement": true,
+ "HTMLBaseElement": true,
+ "HTMLDataListElement": true,
+ "HTMLInputElement": true,
+ "HTMLMeterElement": true,
+ "HTMLSourceElement": true,
+ "HTMLTrackElement": true,
+ "HTMLTableColElement": true,
+ "HTMLFieldSetElement": true,
+ "HTMLDirectoryElement": true,
+ "HTMLTableCellElement": true,
+ "HTMLStyleElement": true,
+ "HTMLAudioElement": true,
+ "HTMLLegendElement": true,
+ "HTMLOListElement": true,
+ "HTMLEmbedElement": true,
+ "HTMLQuoteElement": true,
+ "HTMLMenuElement": true,
+ "HTMLHeadElement": true,
+ "HTMLUnknownElement": true,
+ "HTMLBRElement": true,
+ "HTMLProgressElement": true,
+ "HTMLMediaElement": true,
+ "HTMLFormControlsCollection": true,
+ "HTMLCollection": true,
+ "HTMLLIElement": true,
+ "HTMLDetailsElement": true,
+ "HTMLObjectElement": true,
+ "HTMLHeadingElement": true,
+ "HTMLTableCaptionElement": true,
+ "HTMLPreElement": true,
+ "HTMLAllCollection": true,
+ "HTMLFrameSetElement": true,
+ "HTMLFontElement": true,
+ "HTMLFrameElement": true,
+ "HTMLAnchorElement": true,
+ "HTMLOptGroupElement": true,
+ "HTMLVideoElement": true,
+ "HTMLModElement": true,
+ "HTMLBodyElement": true,
+ "HTMLTableElement": true,
+ "HTMLButtonElement": true,
+ "HTMLTableRowElement": true,
+ "HTMLAreaElement": true,
+ "HTMLDataElement": true,
+ "HTMLParamElement": true,
+ "HTMLLabelElement": true,
+ "HTMLTemplateElement": true,
+ "HTMLOptionsCollection": true,
+ "HTMLIFrameElement": true,
+ "HTMLTitleElement": true,
+ "HTMLMapElement": true,
+ "HTMLOutputElement": true,
+ "HTMLDListElement": true,
+ "HTMLParagraphElement": true,
+ "HTMLHRElement": true,
+ "HTMLImageElement": true,
+ "HTMLDocument": true,
+ "HTMLElement": true,
+ "HTMLScriptElement": true,
+ "HTMLHtmlElement": true,
+ "HTMLTextAreaElement": true,
+ "HTMLDivElement": true,
+ "HTMLSpanElement": true,
+ "cat_css": true,
+ "CSSStyleRule": true,
+ "CSSFontFaceRule": true,
+ "CSSPrimitiveValue": true,
+ "CSSStyleDeclaration": true,
+ "CSSStyleSheet": true,
+ "CSSPageRule": true,
+ "CSSSupportsRule": true,
+ "CSSMozDocumentRule": true,
+ "CSSKeyframeRule": true,
+ "CSSGroupingRule": true,
+ "CSS2Properties": true,
+ "CSSFontFeatureValuesRule": true,
+ "CSSRuleList": true,
+ "CSSPseudoElement": true,
+ "CSSMediaRule": true,
+ "CSSCounterStyleRule": true,
+ "CSSImportRule": true,
+ "CSSTransition": true,
+ "CSSAnimation": true,
+ "CSSValue": true,
+ "CSSNamespaceRule": true,
+ "CSSRule": true,
+ "CSS": true,
+ "CSSKeyframesRule": true,
+ "CSSConditionRule": true,
+ "CSSValueList": true,
+ "cat_event": true,
+ "ondevicemotion": true,
+ "ondeviceorientation": true,
+ "onabsolutedeviceorientation": true,
+ "ondeviceproximity": true,
+ "onuserproximity": true,
+ "ondevicelight": true,
+ "onvrdisplayconnect": true,
+ "onvrdisplaydisconnect": true,
+ "onvrdisplayactivate": true,
+ "onvrdisplaydeactivate": true,
+ "onvrdisplaypresentchange": true,
+ "onabort": true,
+ "onblur": true,
+ "onfocus": true,
+ "onauxclick": true,
+ "oncanplay": true,
+ "oncanplaythrough": true,
+ "onchange": true,
+ "onclick": true,
+ "onclose": true,
+ "oncontextmenu": true,
+ "ondblclick": true,
+ "ondrag": true,
+ "ondragend": true,
+ "ondragenter": true,
+ "ondragexit": true,
+ "ondragleave": true,
+ "ondragover": true,
+ "ondragstart": true,
+ "ondrop": true,
+ "ondurationchange": true,
+ "onemptied": true,
+ "onended": true,
+ "oninput": true,
+ "oninvalid": true,
+ "onkeydown": true,
+ "onkeypress": true,
+ "onkeyup": true,
+ "onload": true,
+ "onloadeddata": true,
+ "onloadedmetadata": true,
+ "onloadend": true,
+ "onloadstart": true,
+ "onmousedown": true,
+ "onmouseenter": true,
+ "onmouseleave": true,
+ "onmousemove": true,
+ "onmouseout": true,
+ "onmouseover": true,
+ "onmouseup": true,
+ "onwheel": true,
+ "onpause": true,
+ "onplay": true,
+ "onplaying": true,
+ "onprogress": true,
+ "onratechange": true,
+ "onreset": true,
+ "onresize": true,
+ "onscroll": true,
+ "onseeked": true,
+ "onseeking": true,
+ "onselect": true,
+ "onshow": true,
+ "onstalled": true,
+ "onsubmit": true,
+ "onsuspend": true,
+ "ontimeupdate": true,
+ "onvolumechange": true,
+ "onwaiting": true,
+ "onselectstart": true,
+ "ontoggle": true,
+ "onpointercancel": true,
+ "onpointerdown": true,
+ "onpointerup": true,
+ "onpointermove": true,
+ "onpointerout": true,
+ "onpointerover": true,
+ "onpointerenter": true,
+ "onpointerleave": true,
+ "ongotpointercapture": true,
+ "onlostpointercapture": true,
+ "onmozfullscreenchange": true,
+ "onmozfullscreenerror": true,
+ "onanimationcancel": true,
+ "onanimationend": true,
+ "onanimationiteration": true,
+ "onanimationstart": true,
+ "ontransitioncancel": true,
+ "ontransitionend": true,
+ "ontransitionrun": true,
+ "ontransitionstart": true,
+ "onwebkitanimationend": true,
+ "onwebkitanimationiteration": true,
+ "onwebkitanimationstart": true,
+ "onwebkittransitionend": true,
+ "onerror": true,
+ "onafterprint": true,
+ "onbeforeprint": true,
+ "onbeforeunload": true,
+ "onhashchange": true,
+ "onlanguagechange": true,
+ "onmessage": true,
+ "onmessageerror": true,
+ "onoffline": true,
+ "ononline": true,
+ "onpagehide": true,
+ "onpageshow": true,
+ "onpopstate": true,
+ "onstorage": true,
+ "onunload": true,
+ "cat_rtc": true,
+ "RTCDTMFSender": true,
+ "RTCStatsReport": true,
+ "RTCTrackEvent": true,
+ "RTCDataChannelEvent": true,
+ "RTCPeerConnectionIceEvent": true,
+ "RTCCertificate": true,
+ "RTCDTMFToneChangeEvent": true,
+ "RTCPeerConnection": true,
+ "RTCIceCandidate": true,
+ "RTCRtpReceiver": true,
+ "RTCRtpSender": true,
+ "RTCSessionDescription": true,
+ "cat_vr": true,
+ "VRStageParameters": true,
+ "VRFrameData": true,
+ "VRDisplay": true,
+ "VRDisplayEvent": true,
+ "VRFieldOfView": true,
+ "VRDisplayCapabilities": true,
+ "VREyeParameters": true,
+ "VRPose": true,
+ "cat_dom": true,
+ "DOMStringMap": true,
+ "DOMRectReadOnly": true,
+ "DOMException": true,
+ "DOMRect": true,
+ "DOMMatrix": true,
+ "DOMMatrixReadOnly": true,
+ "DOMPointReadOnly": true,
+ "DOMPoint": true,
+ "DOMQuad": true,
+ "DOMRequest": true,
+ "DOMParser": true,
+ "DOMTokenList": true,
+ "DOMStringList": true,
+ "DOMImplementation": true,
+ "DOMError": true,
+ "DOMRectList": true,
+ "DOMCursor": true,
+ "cat_idb": true,
+ "IDBFileRequest": true,
+ "IDBTransaction": true,
+ "IDBCursor": true,
+ "IDBFileHandle": true,
+ "IDBMutableFile": true,
+ "IDBKeyRange": true,
+ "IDBVersionChangeEvent": true,
+ "IDBObjectStore": true,
+ "IDBFactory": true,
+ "IDBCursorWithValue": true,
+ "IDBOpenDBRequest": true,
+ "IDBRequest": true,
+ "IDBIndex": true,
+ "IDBDatabase": true,
+ "cat_audio": true,
+ "AudioContext": true,
+ "AudioBuffer": true,
+ "AudioBufferSourceNode": true,
+ "Audio": true,
+ "MediaElementAudioSourceNode": true,
+ "AudioNode": true,
+ "BaseAudioContext": true,
+ "AudioListener": true,
+ "MediaStreamAudioSourceNode": true,
+ "OfflineAudioContext": true,
+ "AudioDestinationNode": true,
+ "AudioParam": true,
+ "MediaStreamAudioDestinationNode": true,
+ "OfflineAudioCompletionEvent": true,
+ "AudioStreamTrack": true,
+ "AudioScheduledSourceNode": true,
+ "AudioProcessingEvent": true,
+ "cat_gamepad": true,
+ "GamepadButton": true,
+ "GamepadHapticActuator": true,
+ "GamepadAxisMoveEvent": true,
+ "GamepadPose": true,
+ "GamepadEvent": true,
+ "Gamepad": true,
+ "GamepadButtonEvent": true,
+ "cat_media": true,
+ "MediaKeys": true,
+ "MediaKeyError": true,
+ "MediaSource": true,
+ "MediaDevices": true,
+ "MediaKeyStatusMap": true,
+ "MediaStreamTrackEvent": true,
+ "MediaRecorder": true,
+ "MediaQueryListEvent": true,
+ "MediaStream": true,
+ "MediaEncryptedEvent": true,
+ "MediaStreamTrack": true,
+ "MediaError": true,
+ "MediaStreamEvent": true,
+ "MediaQueryList": true,
+ "MediaKeySystemAccess": true,
+ "MediaDeviceInfo": true,
+ "MediaKeySession": true,
+ "MediaList": true,
+ "MediaRecorderErrorEvent": true,
+ "MediaKeyMessageEvent": true,
+ "cat_event2": true,
+ "SpeechSynthesisErrorEvent": true,
+ "BeforeUnloadEvent": true,
+ "CustomEvent": true,
+ "PageTransitionEvent": true,
+ "PopupBlockedEvent": true,
+ "CloseEvent": true,
+ "ProgressEvent": true,
+ "MutationEvent": true,
+ "MessageEvent": true,
+ "FocusEvent": true,
+ "TrackEvent": true,
+ "DeviceMotionEvent": true,
+ "TimeEvent": true,
+ "PointerEvent": true,
+ "UserProximityEvent": true,
+ "StorageEvent": true,
+ "DragEvent": true,
+ "MouseScrollEvent": true,
+ "EventSource": true,
+ "PopStateEvent": true,
+ "DeviceProximityEvent": true,
+ "SpeechSynthesisEvent": true,
+ "XMLHttpRequestEventTarget": true,
+ "ClipboardEvent": true,
+ "AnimationPlaybackEvent": true,
+ "DeviceLightEvent": true,
+ "BlobEvent": true,
+ "MouseEvent": true,
+ "WheelEvent": true,
+ "InputEvent": true,
+ "HashChangeEvent": true,
+ "DeviceOrientationEvent": true,
+ "CompositionEvent": true,
+ "KeyEvent": true,
+ "ScrollAreaEvent": true,
+ "KeyboardEvent": true,
+ "TransitionEvent": true,
+ "ErrorEvent": true,
+ "AnimationEvent": true,
+ "FontFaceSetLoadEvent": true,
+ "EventTarget": true,
+ "captureEvents": true,
+ "releaseEvents": true,
+ "Event": true,
+ "UIEvent": true,
+ "cat_other": false,
+ "undefined": false,
+ "Array": false,
+ "Boolean": false,
+ "JSON": false,
+ "Date": false,
+ "Math": false,
+ "Number": false,
+ "String": false,
+ "RegExp": false,
+ "Error": false,
+ "InternalError": false,
+ "EvalError": false,
+ "RangeError": false,
+ "ReferenceError": false,
+ "SyntaxError": false,
+ "TypeError": false,
+ "URIError": false,
+ "ArrayBuffer": true,
+ "Int8Array": true,
+ "Uint8Array": true,
+ "Int16Array": true,
+ "Uint16Array": true,
+ "Int32Array": true,
+ "Uint32Array": true,
+ "Float32Array": true,
+ "Float64Array": true,
+ "Uint8ClampedArray": true,
+ "Proxy": true,
+ "WeakMap": true,
+ "Map": true,
+ "Set": true,
+ "DataView": false,
+ "Symbol": false,
+ "SharedArrayBuffer": true,
+ "Intl": false,
+ "TypedObject": true,
+ "Reflect": true,
+ "SIMD": true,
+ "WeakSet": true,
+ "Atomics": true,
+ "Promise": true,
+ "WebAssembly": true,
+ "NaN": false,
+ "Infinity": false,
+ "isNaN": false,
+ "isFinite": false,
+ "parseFloat": false,
+ "parseInt": false,
+ "escape": false,
+ "unescape": false,
+ "decodeURI": false,
+ "encodeURI": false,
+ "decodeURIComponent": false,
+ "encodeURIComponent": false,
+ "uneval": false,
+ "BatteryManager": true,
+ "CanvasGradient": true,
+ "TextDecoder": true,
+ "Plugin": true,
+ "PushManager": true,
+ "ChannelMergerNode": true,
+ "PerformanceResourceTiming": true,
+ "ServiceWorker": true,
+ "TextTrackCueList": true,
+ "PerformanceEntry": true,
+ "TextTrackList": true,
+ "StyleSheet": true,
+ "PerformanceMeasure": true,
+ "DesktopNotificationCenter": true,
+ "Comment": true,
+ "DelayNode": true,
+ "XPathResult": true,
+ "CDATASection": true,
+ "MessageChannel": true,
+ "BiquadFilterNode": true,
+ "SpeechSynthesisUtterance": true,
+ "Crypto": true,
+ "Navigator": true,
+ "FileList": true,
+ "URLSearchParams": false,
+ "ServiceWorkerContainer": true,
+ "ValidityState": true,
+ "ProcessingInstruction": true,
+ "AbortSignal": true,
+ "FontFace": true,
+ "FileReader": true,
+ "Worker": true,
+ "External": true,
+ "ImageBitmap": true,
+ "TimeRanges": true,
+ "Option": true,
+ "TextTrack": true,
+ "Image": true,
+ "AnimationTimeline": true,
+ "VideoPlaybackQuality": true,
+ "VTTCue": true,
+ "Storage": true,
+ "XPathExpression": true,
+ "CharacterData": false,
+ "TextMetrics": true,
+ "AnimationEffectReadOnly": true,
+ "PerformanceTiming": false,
+ "PerformanceMark": true,
+ "ImageBitmapRenderingContext": true,
+ "Headers": true,
+ "Range": false,
+ "Rect": true,
+ "AnimationEffectTimingReadOnly": true,
+ "KeyframeEffect": true,
+ "Permissions": true,
+ "TextEncoder": true,
+ "ImageData": true,
+ "SpeechSynthesisVoice": true,
+ "StorageManager": true,
+ "TextTrackCue": true,
+ "WebSocket": true,
+ "DocumentType": true,
+ "XPathEvaluator": true,
+ "PerformanceNavigationTiming": true,
+ "IdleDeadline": true,
+ "FileSystem": true,
+ "FileSystemFileEntry": true,
+ "CacheStorage": true,
+ "MimeType": true,
+ "PannerNode": true,
+ "NodeFilter": true,
+ "StereoPannerNode": true,
+ "console": false,
+ "DynamicsCompressorNode": true,
+ "PaintRequest": true,
+ "RGBColor": true,
+ "FontFaceSet": false,
+ "PaintRequestList": true,
+ "FileSystemEntry": true,
+ "XMLDocument": false,
+ "SourceBuffer": false,
+ "Screen": true,
+ "NamedNodeMap": false,
+ "History": true,
+ "Response": true,
+ "AnimationEffectTiming": true,
+ "ServiceWorkerRegistration": true,
+ "CanvasRenderingContext2D": true,
+ "ScriptProcessorNode": true,
+ "FileSystemDirectoryReader": true,
+ "MimeTypeArray": true,
+ "CanvasCaptureMediaStream": true,
+ "Directory": true,
+ "mozRTCPeerConnection": true,
+ "PerformanceObserverEntryList": true,
+ "PushSubscriptionOptions": true,
+ "Text": false,
+ "IntersectionObserverEntry": true,
+ "SubtleCrypto": true,
+ "Animation": true,
+ "DataTransfer": true,
+ "TreeWalker": true,
+ "XMLHttpRequest": true,
+ "LocalMediaStream": true,
+ "ConvolverNode": true,
+ "WaveShaperNode": true,
+ "DataTransferItemList": false,
+ "Request": true,
+ "SourceBufferList": false,
+ "XSLTProcessor": true,
+ "XMLHttpRequestUpload": true,
+ "SharedWorker": true,
+ "Notification": false,
+ "DataTransferItem": true,
+ "AnalyserNode": true,
+ "mozRTCIceCandidate": true,
+ "PerformanceObserver": true,
+ "OfflineResourceList": true,
+ "FileSystemDirectoryEntry": true,
+ "DesktopNotification": false,
+ "DataChannel": true,
+ "IIRFilterNode": true,
+ "ChannelSplitterNode": true,
+ "File": true,
+ "ConstantSourceNode": true,
+ "CryptoKey": true,
+ "GainNode": true,
+ "AbortController": true,
+ "Attr": true,
+ "SpeechSynthesis": true,
+ "PushSubscription": false,
+ "XMLStylesheetProcessingInstruction": false,
+ "NodeIterator": true,
+ "VideoStreamTrack": true,
+ "XMLSerializer": true,
+ "CaretPosition": true,
+ "FormData": true,
+ "CanvasPattern": true,
+ "mozRTCSessionDescription": true,
+ "Path2D": true,
+ "PerformanceNavigation": true,
+ "URL": false,
+ "PluginArray": true,
+ "MutationRecord": true,
+ "WebKitCSSMatrix": true,
+ "PeriodicWave": true,
+ "DocumentFragment": true,
+ "DocumentTimeline": false,
+ "ScreenOrientation": true,
+ "BroadcastChannel": true,
+ "PermissionStatus": true,
+ "IntersectionObserver": true,
+ "Blob": true,
+ "MessagePort": true,
+ "BarProp": true,
+ "OscillatorNode": true,
+ "Cache": true,
+ "RadioNodeList": true,
+ "KeyframeEffectReadOnly": true,
+ "InstallTrigger": true,
+ "Function": false,
+ "Object": false,
+ "eval": true,
+ "Window": false,
+ "close": false,
+ "stop": false,
+ "focus": false,
+ "blur": false,
+ "open": true,
+ "alert": false,
+ "confirm": false,
+ "prompt": false,
+ "print": false,
+ "postMessage": true,
+ "getSelection": true,
+ "getComputedStyle": true,
+ "matchMedia": true,
+ "moveTo": false,
+ "moveBy": false,
+ "resizeTo": false,
+ "resizeBy": false,
+ "scroll": false,
+ "scrollTo": false,
+ "scrollBy": false,
+ "requestAnimationFrame": true,
+ "cancelAnimationFrame": true,
+ "getDefaultComputedStyle": false,
+ "scrollByLines": false,
+ "scrollByPages": false,
+ "sizeToContent": false,
+ "updateCommands": true,
+ "find": false,
+ "dump": true,
+ "setResizable": false,
+ "requestIdleCallback": false,
+ "cancelIdleCallback": false,
+ "btoa": true,
+ "atob": true,
+ "setTimeout": true,
+ "clearTimeout": true,
+ "setInterval": true,
+ "clearInterval": true,
+ "createImageBitmap": true,
+ "fetch": true,
+ "self": true,
+ "name": false,
+ "history": true,
+ "locationbar": true,
+ "menubar": true,
+ "personalbar": true,
+ "scrollbars": true,
+ "statusbar": true,
+ "toolbar": true,
+ "status": true,
+ "closed": true,
+ "frames": true,
+ "length": false,
+ "opener": true,
+ "parent": true,
+ "frameElement": true,
+ "navigator": true,
+ "external": true,
+ "applicationCache": true,
+ "screen": true,
+ "innerWidth": true,
+ "innerHeight": true,
+ "scrollX": true,
+ "pageXOffset": true,
+ "scrollY": true,
+ "pageYOffset": true,
+ "screenX": true,
+ "screenY": true,
+ "outerWidth": true,
+ "outerHeight": true,
+ "performance": true,
+ "mozInnerScreenX": true,
+ "mozInnerScreenY": true,
+ "devicePixelRatio": true,
+ "scrollMaxX": true,
+ "scrollMaxY": true,
+ "fullScreen": false,
+ "mozPaintCount": true,
+ "sidebar": false,
+ "crypto": true,
+ "speechSynthesis": true,
+ "localStorage": true,
+ "origin": true,
+ "isSecureContext": false,
+ "indexedDB": true,
+ "caches": true,
+ "sessionStorage": true,
+ "window": false,
+ "document": true,
+ "location": false,
+ "top": true,
+ "netscape": true,
+ "Node": true,
+ "Document": true,
+ "Performance": false,
+ "startProfiling": true,
+ "stopProfiling": true,
+ "pauseProfilers": true,
+ "resumeProfilers": true,
+ "dumpProfile": true,
+ "getMaxGCPauseSinceClear": true,
+ "clearMaxGCPauseAccumulator": true,
+ "Location": true,
+ "StyleSheetList": false,
+ "Selection": false,
+ "Element": true,
+ "AnonymousContent": false,
+ "MutationObserver": true,
+ "NodeList": true,
+ "StopIteration": true
+};
+
+
+//************************Comes from HTML file index.html's script test.js****************************
+
+/**
+* If this is true, it evaluates entire scripts instead of returning as soon as it encounters a violation.
+*
+* Also, it controls whether or not this part of the code logs to the console.
+*
+*/
+var DEBUG = true;
+console.log("DEBUG:"+DEBUG);
+
+function dbg_print(a,b){
+ if(DEBUG == true){
+ //console.log(a,b)
+ }
+}
+function full_evaluate(script){
+ var res = true;
+ if(script === undefined || script == ""){
+ return [true,"Harmless null script"];
+ }
+
+ var ast = acorn.parse_dammit(script).body[0];
+
+ var flag = false;
+ var amtloops = 0;
+
+ var loopkeys = {"for":true,"if":true,"while":true,"switch":true};
+ var operators = {"||":true,"&&":true,"=":true,"==":true,"++":true,"--":true,"+=":true,"-=":true,"*":true};
+ try{
+ var tokens = acorn_base.tokenizer(script);
+ }catch(e){
+ console.warn("Tokenizer could not be initiated (probably invalid code)");
+ return [false,"Tokenizer could not be initiated (probably invalid code)"];
+ }
+ try{
+ var toke = tokens.getToken();
+ }catch(e){
+ console.warn("couldn't get first token (probably invalid code)");
+ console.warn("Continuing evaluation");
+ }
+
+ /**
+ * Given the end of an identifer token, it tests for bracket suffix notation
+ */
+ function being_called(end){
+ var i = 0;
+ while(script.charAt(end+i).match(/\s/g) !== null){
+ i++;
+ if(i >= script.length-1){
+ return false;
+ }
+ }
+ if(script.charAt(end+i) == "("){
+ return true;
+ }else{
+ return false;
+ }
+ }
+ /**
+ * Given the end of an identifer token, it tests for parentheses
+ */
+ function is_bsn(end){
+ var i = 0;
+ while(script.charAt(end+i).match(/\s/g) !== null){
+ i++;
+ if(i >= script.length-1){
+ return false;
+ }
+ }
+ if(script.charAt(end+i) == "["){
+ return true;
+ }else{
+ return false;
+ }
+ }
+ var error_count = 0;
+ while(toke.type != acorn_base.tokTypes.eof){
+ if(toke.type.keyword !== undefined){
+ // This type of loop detection ignores functional loop alternatives and ternary operators
+ //dbg_print("Keyword:"+toke.type.keyword);
+ console.log(toke);
+ if(toke.type.keyword == "function"){
+ dbg_print("%c NONTRIVIAL: Function declaration.","color:red");
+ if(DEBUG == false){
+ return [false,"NONTRIVIAL: Function declaration."];
+ }
+ }
+
+ if(loopkeys[toke.type.keyword] !== undefined){
+ amtloops++;
+ if(amtloops > 3){
+ dbg_print("%c NONTRIVIAL: Too many loops/conditionals.","color:red");
+ if(DEBUG == false){
+ return [false,"NONTRIVIAL: Too many loops/conditionals."];
+ }
+ }
+ }
+ }else if(toke.value !== undefined){
+ var status = fname_data[toke.value];
+ if(status === true){ // is the identifier banned?
+ dbg_print("%c NONTRIVIAL: nontrivial token: '"+toke.value+"'","color:red");
+ if(DEBUG == false){
+ return [false,"NONTRIVIAL: nontrivial token: '"+toke.value+"'"];
+ }
+ }else if(status === false){// is the identifier not banned?
+ // Is there bracket suffix notation?
+ if(operators[toke.value] === undefined){
+ if(is_bsn(toke.end)){
+ dbg_print("%c NONTRIVIAL: Bracket suffix notation on variable '"+toke.value+"'","color:red");
+ if(DEBUG == false){
+ return [false,"%c NONTRIVIAL: Bracket suffix notation on variable '"+toke.value+"'"];
+ }
+ }
+ }
+ }else if(status === undefined){// is the identifier user defined?
+ // Are arguments being passed to a user defined variable?
+ if(being_called(toke.end)){
+ dbg_print("%c NONTRIVIAL: User defined variable '"+toke.value+"' called as function","color:red");
+ if(DEBUG == false){
+ return [false,"NONTRIVIAL: User defined variable '"+toke.value+"' called as function"];
+ }
+ }
+ // Is there bracket suffix notation?
+ if(operators[toke.value] === undefined){
+ if(is_bsn(toke.end)){
+ dbg_print("%c NONTRIVIAL: Bracket suffix notation on variable '"+toke.value+"'","color:red");
+ if(DEBUG == false){
+ return [false,"NONTRIVIAL: Bracket suffix notation on variable '"+toke.value+"'"];
+ }
+ }
+ }
+ }else{
+ dbg_print("trivial token:"+toke.value);
+ }
+ }
+ // If not a keyword or an identifier it's some kind of operator, field parenthesis, brackets
+ try{
+ toke = tokens.getToken();
+ }catch(e){
+ dbg_print("Denied script because it cannot be parsed.");
+ return [false,"NONTRIVIAL: Cannot be parsed."];
+ console.warn("Continuing evaluation");
+ error_count++;
+ }
+ }
+
+ dbg_print("%cAppears to be trivial.","color:green;");
+ return [true,"Script appears to be trivial."];
+}
+
+//****************************************************************************************************
+
+window.onload = function () {
+ document.getElementById("parse").addEventListener("click",function(){
+ var script = document.getElementById("input").value;
+ var ast = acorn.parse_dammit(script).body[0];
+ document.getElementById("output").innerHTML = JSON.stringify(ast, null, '\t'); // Indented with tab
+ document.getElementById("output").innerHTML = full_evaluate(script) + "\n\n" + document.getElementById("output").innerHTML;
+ });
+}
+
diff --git a/evaluation test/test_bundle.js b/evaluation test/test_bundle.js
new file mode 100644
index 0000000..62b50d6
--- /dev/null
+++ b/evaluation test/test_bundle.js
@@ -0,0 +1,6554 @@
+(function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
+var acorn = require('acorn/dist/acorn_loose');
+var walk = require("acorn/dist/walk");
+var acorn_base = require("acorn");
+
+var fname_data = {
+ "WebGLShader": true,
+ "WebGLShaderPrecisionFormat": true,
+ "WebGLQuery": true,
+ "WebGLRenderbuffer": true,
+ "WebGLSampler": true,
+ "WebGLUniformLocation": true,
+ "WebGLFramebuffer": true,
+ "WebGLProgram": true,
+ "WebGLContextEvent": true,
+ "WebGL2RenderingContext": true,
+ "WebGLTexture": true,
+ "WebGLRenderingContext": true,
+ "WebGLVertexArrayObject": true,
+ "WebGLActiveInfo": true,
+ "WebGLTransformFeedback": true,
+ "WebGLSync": true,
+ "WebGLBuffer": true,
+ "cat_svg": true,
+ "SVGPoint": true,
+ "SVGEllipseElement": true,
+ "SVGRadialGradientElement": true,
+ "SVGComponentTransferFunctionElement": true,
+ "SVGPathSegCurvetoQuadraticAbs": true,
+ "SVGAnimatedNumberList": true,
+ "SVGPathSegCurvetoQuadraticSmoothRel": true,
+ "SVGFEColorMatrixElement": true,
+ "SVGPathSegLinetoHorizontalAbs": true,
+ "SVGLinearGradientElement": true,
+ "SVGStyleElement": true,
+ "SVGPathSegMovetoRel": true,
+ "SVGStopElement": true,
+ "SVGPathSegLinetoRel": true,
+ "SVGFEConvolveMatrixElement": true,
+ "SVGAnimatedAngle": true,
+ "SVGPathSegLinetoAbs": true,
+ "SVGPreserveAspectRatio": true,
+ "SVGFEOffsetElement": true,
+ "SVGFEImageElement": true,
+ "SVGFEDiffuseLightingElement": true,
+ "SVGAnimatedNumber": true,
+ "SVGTextElement": true,
+ "SVGFESpotLightElement": true,
+ "SVGFEMorphologyElement": true,
+ "SVGAngle": true,
+ "SVGScriptElement": true,
+ "SVGFEDropShadowElement": true,
+ "SVGPathSegArcRel": true,
+ "SVGNumber": true,
+ "SVGPathSegLinetoHorizontalRel": true,
+ "SVGFEFuncBElement": true,
+ "SVGClipPathElement": true,
+ "SVGPathSeg": true,
+ "SVGUseElement": true,
+ "SVGPathSegArcAbs": true,
+ "SVGPathSegCurvetoQuadraticSmoothAbs": true,
+ "SVGRect": true,
+ "SVGAnimatedPreserveAspectRatio": true,
+ "SVGImageElement": true,
+ "SVGAnimatedEnumeration": true,
+ "SVGAnimatedLengthList": true,
+ "SVGFEFloodElement": true,
+ "SVGFECompositeElement": true,
+ "SVGAElement": true,
+ "SVGAnimatedBoolean": true,
+ "SVGMaskElement": true,
+ "SVGFilterElement": true,
+ "SVGPathSegLinetoVerticalRel": true,
+ "SVGAnimatedInteger": true,
+ "SVGTSpanElement": true,
+ "SVGMarkerElement": true,
+ "SVGStringList": true,
+ "SVGTransform": true,
+ "SVGTitleElement": true,
+ "SVGFEBlendElement": true,
+ "SVGTextPositioningElement": true,
+ "SVGFEFuncGElement": true,
+ "SVGFEPointLightElement": true,
+ "SVGAnimateElement": true,
+ "SVGPolylineElement": true,
+ "SVGDefsElement": true,
+ "SVGPathSegList": true,
+ "SVGAnimatedTransformList": true,
+ "SVGPathSegClosePath": true,
+ "SVGGradientElement": true,
+ "SVGSwitchElement": true,
+ "SVGViewElement": true,
+ "SVGUnitTypes": true,
+ "SVGPathSegMovetoAbs": true,
+ "SVGSymbolElement": true,
+ "SVGFEFuncAElement": true,
+ "SVGAnimatedString": true,
+ "SVGFEMergeElement": true,
+ "SVGPathSegLinetoVerticalAbs": true,
+ "SVGAnimationElement": true,
+ "SVGPathSegCurvetoCubicAbs": true,
+ "SVGLength": true,
+ "SVGTextPathElement": true,
+ "SVGPolygonElement": true,
+ "SVGAnimatedRect": true,
+ "SVGPathSegCurvetoCubicRel": true,
+ "SVGFEFuncRElement": true,
+ "SVGLengthList": true,
+ "SVGTextContentElement": true,
+ "SVGFETurbulenceElement": true,
+ "SVGMatrix": true,
+ "SVGZoomAndPan": true,
+ "SVGMetadataElement": true,
+ "SVGFEDistantLightElement": true,
+ "SVGAnimateMotionElement": true,
+ "SVGDescElement": true,
+ "SVGPathSegCurvetoCubicSmoothRel": true,
+ "SVGFESpecularLightingElement": true,
+ "SVGFEGaussianBlurElement": true,
+ "SVGFEComponentTransferElement": true,
+ "SVGNumberList": true,
+ "SVGTransformList": true,
+ "SVGForeignObjectElement": true,
+ "SVGRectElement": true,
+ "SVGFEDisplacementMapElement": true,
+ "SVGAnimateTransformElement": true,
+ "SVGAnimatedLength": true,
+ "SVGPointList": true,
+ "SVGPatternElement": true,
+ "SVGPathSegCurvetoCubicSmoothAbs": true,
+ "SVGCircleElement": true,
+ "SVGSetElement": true,
+ "SVGFETileElement": true,
+ "SVGMPathElement": true,
+ "SVGFEMergeNodeElement": true,
+ "SVGPathSegCurvetoQuadraticRel": true,
+ "SVGElement": true,
+ "SVGGraphicsElement": true,
+ "SVGSVGElement": true,
+ "SVGGElement": true,
+ "SVGGeometryElement": true,
+ "SVGPathElement": true,
+ "SVGLineElement": true,
+ "cat_html": true,
+ "HTMLTimeElement": true,
+ "HTMLPictureElement": true,
+ "HTMLMenuItemElement": true,
+ "HTMLFormElement": true,
+ "HTMLOptionElement": true,
+ "HTMLCanvasElement": true,
+ "HTMLTableSectionElement": true,
+ "HTMLSelectElement": true,
+ "HTMLUListElement": true,
+ "HTMLMetaElement": true,
+ "HTMLLinkElement": true,
+ "HTMLBaseElement": true,
+ "HTMLDataListElement": true,
+ "HTMLInputElement": true,
+ "HTMLMeterElement": true,
+ "HTMLSourceElement": true,
+ "HTMLTrackElement": true,
+ "HTMLTableColElement": true,
+ "HTMLFieldSetElement": true,
+ "HTMLDirectoryElement": true,
+ "HTMLTableCellElement": true,
+ "HTMLStyleElement": true,
+ "HTMLAudioElement": true,
+ "HTMLLegendElement": true,
+ "HTMLOListElement": true,
+ "HTMLEmbedElement": true,
+ "HTMLQuoteElement": true,
+ "HTMLMenuElement": true,
+ "HTMLHeadElement": true,
+ "HTMLUnknownElement": true,
+ "HTMLBRElement": true,
+ "HTMLProgressElement": true,
+ "HTMLMediaElement": true,
+ "HTMLFormControlsCollection": true,
+ "HTMLCollection": true,
+ "HTMLLIElement": true,
+ "HTMLDetailsElement": true,
+ "HTMLObjectElement": true,
+ "HTMLHeadingElement": true,
+ "HTMLTableCaptionElement": true,
+ "HTMLPreElement": true,
+ "HTMLAllCollection": true,
+ "HTMLFrameSetElement": true,
+ "HTMLFontElement": true,
+ "HTMLFrameElement": true,
+ "HTMLAnchorElement": true,
+ "HTMLOptGroupElement": true,
+ "HTMLVideoElement": true,
+ "HTMLModElement": true,
+ "HTMLBodyElement": true,
+ "HTMLTableElement": true,
+ "HTMLButtonElement": true,
+ "HTMLTableRowElement": true,
+ "HTMLAreaElement": true,
+ "HTMLDataElement": true,
+ "HTMLParamElement": true,
+ "HTMLLabelElement": true,
+ "HTMLTemplateElement": true,
+ "HTMLOptionsCollection": true,
+ "HTMLIFrameElement": true,
+ "HTMLTitleElement": true,
+ "HTMLMapElement": true,
+ "HTMLOutputElement": true,
+ "HTMLDListElement": true,
+ "HTMLParagraphElement": true,
+ "HTMLHRElement": true,
+ "HTMLImageElement": true,
+ "HTMLDocument": true,
+ "HTMLElement": true,
+ "HTMLScriptElement": true,
+ "HTMLHtmlElement": true,
+ "HTMLTextAreaElement": true,
+ "HTMLDivElement": true,
+ "HTMLSpanElement": true,
+ "cat_css": true,
+ "CSSStyleRule": true,
+ "CSSFontFaceRule": true,
+ "CSSPrimitiveValue": true,
+ "CSSStyleDeclaration": true,
+ "CSSStyleSheet": true,
+ "CSSPageRule": true,
+ "CSSSupportsRule": true,
+ "CSSMozDocumentRule": true,
+ "CSSKeyframeRule": true,
+ "CSSGroupingRule": true,
+ "CSS2Properties": true,
+ "CSSFontFeatureValuesRule": true,
+ "CSSRuleList": true,
+ "CSSPseudoElement": true,
+ "CSSMediaRule": true,
+ "CSSCounterStyleRule": true,
+ "CSSImportRule": true,
+ "CSSTransition": true,
+ "CSSAnimation": true,
+ "CSSValue": true,
+ "CSSNamespaceRule": true,
+ "CSSRule": true,
+ "CSS": true,
+ "CSSKeyframesRule": true,
+ "CSSConditionRule": true,
+ "CSSValueList": true,
+ "cat_event": true,
+ "ondevicemotion": true,
+ "ondeviceorientation": true,
+ "onabsolutedeviceorientation": true,
+ "ondeviceproximity": true,
+ "onuserproximity": true,
+ "ondevicelight": true,
+ "onvrdisplayconnect": true,
+ "onvrdisplaydisconnect": true,
+ "onvrdisplayactivate": true,
+ "onvrdisplaydeactivate": true,
+ "onvrdisplaypresentchange": true,
+ "onabort": true,
+ "onblur": true,
+ "onfocus": true,
+ "onauxclick": true,
+ "oncanplay": true,
+ "oncanplaythrough": true,
+ "onchange": true,
+ "onclick": true,
+ "onclose": true,
+ "oncontextmenu": true,
+ "ondblclick": true,
+ "ondrag": true,
+ "ondragend": true,
+ "ondragenter": true,
+ "ondragexit": true,
+ "ondragleave": true,
+ "ondragover": true,
+ "ondragstart": true,
+ "ondrop": true,
+ "ondurationchange": true,
+ "onemptied": true,
+ "onended": true,
+ "oninput": true,
+ "oninvalid": true,
+ "onkeydown": true,
+ "onkeypress": true,
+ "onkeyup": true,
+ "onload": true,
+ "onloadeddata": true,
+ "onloadedmetadata": true,
+ "onloadend": true,
+ "onloadstart": true,
+ "onmousedown": true,
+ "onmouseenter": true,
+ "onmouseleave": true,
+ "onmousemove": true,
+ "onmouseout": true,
+ "onmouseover": true,
+ "onmouseup": true,
+ "onwheel": true,
+ "onpause": true,
+ "onplay": true,
+ "onplaying": true,
+ "onprogress": true,
+ "onratechange": true,
+ "onreset": true,
+ "onresize": true,
+ "onscroll": true,
+ "onseeked": true,
+ "onseeking": true,
+ "onselect": true,
+ "onshow": true,
+ "onstalled": true,
+ "onsubmit": true,
+ "onsuspend": true,
+ "ontimeupdate": true,
+ "onvolumechange": true,
+ "onwaiting": true,
+ "onselectstart": true,
+ "ontoggle": true,
+ "onpointercancel": true,
+ "onpointerdown": true,
+ "onpointerup": true,
+ "onpointermove": true,
+ "onpointerout": true,
+ "onpointerover": true,
+ "onpointerenter": true,
+ "onpointerleave": true,
+ "ongotpointercapture": true,
+ "onlostpointercapture": true,
+ "onmozfullscreenchange": true,
+ "onmozfullscreenerror": true,
+ "onanimationcancel": true,
+ "onanimationend": true,
+ "onanimationiteration": true,
+ "onanimationstart": true,
+ "ontransitioncancel": true,
+ "ontransitionend": true,
+ "ontransitionrun": true,
+ "ontransitionstart": true,
+ "onwebkitanimationend": true,
+ "onwebkitanimationiteration": true,
+ "onwebkitanimationstart": true,
+ "onwebkittransitionend": true,
+ "onerror": true,
+ "onafterprint": true,
+ "onbeforeprint": true,
+ "onbeforeunload": true,
+ "onhashchange": true,
+ "onlanguagechange": true,
+ "onmessage": true,
+ "onmessageerror": true,
+ "onoffline": true,
+ "ononline": true,
+ "onpagehide": true,
+ "onpageshow": true,
+ "onpopstate": true,
+ "onstorage": true,
+ "onunload": true,
+ "cat_rtc": true,
+ "RTCDTMFSender": true,
+ "RTCStatsReport": true,
+ "RTCTrackEvent": true,
+ "RTCDataChannelEvent": true,
+ "RTCPeerConnectionIceEvent": true,
+ "RTCCertificate": true,
+ "RTCDTMFToneChangeEvent": true,
+ "RTCPeerConnection": true,
+ "RTCIceCandidate": true,
+ "RTCRtpReceiver": true,
+ "RTCRtpSender": true,
+ "RTCSessionDescription": true,
+ "cat_vr": true,
+ "VRStageParameters": true,
+ "VRFrameData": true,
+ "VRDisplay": true,
+ "VRDisplayEvent": true,
+ "VRFieldOfView": true,
+ "VRDisplayCapabilities": true,
+ "VREyeParameters": true,
+ "VRPose": true,
+ "cat_dom": true,
+ "DOMStringMap": true,
+ "DOMRectReadOnly": true,
+ "DOMException": true,
+ "DOMRect": true,
+ "DOMMatrix": true,
+ "DOMMatrixReadOnly": true,
+ "DOMPointReadOnly": true,
+ "DOMPoint": true,
+ "DOMQuad": true,
+ "DOMRequest": true,
+ "DOMParser": true,
+ "DOMTokenList": true,
+ "DOMStringList": true,
+ "DOMImplementation": true,
+ "DOMError": true,
+ "DOMRectList": true,
+ "DOMCursor": true,
+ "cat_idb": true,
+ "IDBFileRequest": true,
+ "IDBTransaction": true,
+ "IDBCursor": true,
+ "IDBFileHandle": true,
+ "IDBMutableFile": true,
+ "IDBKeyRange": true,
+ "IDBVersionChangeEvent": true,
+ "IDBObjectStore": true,
+ "IDBFactory": true,
+ "IDBCursorWithValue": true,
+ "IDBOpenDBRequest": true,
+ "IDBRequest": true,
+ "IDBIndex": true,
+ "IDBDatabase": true,
+ "cat_audio": true,
+ "AudioContext": true,
+ "AudioBuffer": true,
+ "AudioBufferSourceNode": true,
+ "Audio": true,
+ "MediaElementAudioSourceNode": true,
+ "AudioNode": true,
+ "BaseAudioContext": true,
+ "AudioListener": true,
+ "MediaStreamAudioSourceNode": true,
+ "OfflineAudioContext": true,
+ "AudioDestinationNode": true,
+ "AudioParam": true,
+ "MediaStreamAudioDestinationNode": true,
+ "OfflineAudioCompletionEvent": true,
+ "AudioStreamTrack": true,
+ "AudioScheduledSourceNode": true,
+ "AudioProcessingEvent": true,
+ "cat_gamepad": true,
+ "GamepadButton": true,
+ "GamepadHapticActuator": true,
+ "GamepadAxisMoveEvent": true,
+ "GamepadPose": true,
+ "GamepadEvent": true,
+ "Gamepad": true,
+ "GamepadButtonEvent": true,
+ "cat_media": true,
+ "MediaKeys": true,
+ "MediaKeyError": true,
+ "MediaSource": true,
+ "MediaDevices": true,
+ "MediaKeyStatusMap": true,
+ "MediaStreamTrackEvent": true,
+ "MediaRecorder": true,
+ "MediaQueryListEvent": true,
+ "MediaStream": true,
+ "MediaEncryptedEvent": true,
+ "MediaStreamTrack": true,
+ "MediaError": true,
+ "MediaStreamEvent": true,
+ "MediaQueryList": true,
+ "MediaKeySystemAccess": true,
+ "MediaDeviceInfo": true,
+ "MediaKeySession": true,
+ "MediaList": true,
+ "MediaRecorderErrorEvent": true,
+ "MediaKeyMessageEvent": true,
+ "cat_event2": true,
+ "SpeechSynthesisErrorEvent": true,
+ "BeforeUnloadEvent": true,
+ "CustomEvent": true,
+ "PageTransitionEvent": true,
+ "PopupBlockedEvent": true,
+ "CloseEvent": true,
+ "ProgressEvent": true,
+ "MutationEvent": true,
+ "MessageEvent": true,
+ "FocusEvent": true,
+ "TrackEvent": true,
+ "DeviceMotionEvent": true,
+ "TimeEvent": true,
+ "PointerEvent": true,
+ "UserProximityEvent": true,
+ "StorageEvent": true,
+ "DragEvent": true,
+ "MouseScrollEvent": true,
+ "EventSource": true,
+ "PopStateEvent": true,
+ "DeviceProximityEvent": true,
+ "SpeechSynthesisEvent": true,
+ "XMLHttpRequestEventTarget": true,
+ "ClipboardEvent": true,
+ "AnimationPlaybackEvent": true,
+ "DeviceLightEvent": true,
+ "BlobEvent": true,
+ "MouseEvent": true,
+ "WheelEvent": true,
+ "InputEvent": true,
+ "HashChangeEvent": true,
+ "DeviceOrientationEvent": true,
+ "CompositionEvent": true,
+ "KeyEvent": true,
+ "ScrollAreaEvent": true,
+ "KeyboardEvent": true,
+ "TransitionEvent": true,
+ "ErrorEvent": true,
+ "AnimationEvent": true,
+ "FontFaceSetLoadEvent": true,
+ "EventTarget": true,
+ "captureEvents": true,
+ "releaseEvents": true,
+ "Event": true,
+ "UIEvent": true,
+ "cat_other": false,
+ "undefined": false,
+ "Array": false,
+ "Boolean": false,
+ "JSON": false,
+ "Date": false,
+ "Math": false,
+ "Number": false,
+ "String": false,
+ "RegExp": false,
+ "Error": false,
+ "InternalError": false,
+ "EvalError": false,
+ "RangeError": false,
+ "ReferenceError": false,
+ "SyntaxError": false,
+ "TypeError": false,
+ "URIError": false,
+ "ArrayBuffer": true,
+ "Int8Array": true,
+ "Uint8Array": true,
+ "Int16Array": true,
+ "Uint16Array": true,
+ "Int32Array": true,
+ "Uint32Array": true,
+ "Float32Array": true,
+ "Float64Array": true,
+ "Uint8ClampedArray": true,
+ "Proxy": true,
+ "WeakMap": true,
+ "Map": true,
+ "Set": true,
+ "DataView": false,
+ "Symbol": false,
+ "SharedArrayBuffer": true,
+ "Intl": false,
+ "TypedObject": true,
+ "Reflect": true,
+ "SIMD": true,
+ "WeakSet": true,
+ "Atomics": true,
+ "Promise": true,
+ "WebAssembly": true,
+ "NaN": false,
+ "Infinity": false,
+ "isNaN": false,
+ "isFinite": false,
+ "parseFloat": false,
+ "parseInt": false,
+ "escape": false,
+ "unescape": false,
+ "decodeURI": false,
+ "encodeURI": false,
+ "decodeURIComponent": false,
+ "encodeURIComponent": false,
+ "uneval": false,
+ "BatteryManager": true,
+ "CanvasGradient": true,
+ "TextDecoder": true,
+ "Plugin": true,
+ "PushManager": true,
+ "ChannelMergerNode": true,
+ "PerformanceResourceTiming": true,
+ "ServiceWorker": true,
+ "TextTrackCueList": true,
+ "PerformanceEntry": true,
+ "TextTrackList": true,
+ "StyleSheet": true,
+ "PerformanceMeasure": true,
+ "DesktopNotificationCenter": true,
+ "Comment": true,
+ "DelayNode": true,
+ "XPathResult": true,
+ "CDATASection": true,
+ "MessageChannel": true,
+ "BiquadFilterNode": true,
+ "SpeechSynthesisUtterance": true,
+ "Crypto": true,
+ "Navigator": true,
+ "FileList": true,
+ "URLSearchParams": false,
+ "ServiceWorkerContainer": true,
+ "ValidityState": true,
+ "ProcessingInstruction": true,
+ "AbortSignal": true,
+ "FontFace": true,
+ "FileReader": true,
+ "Worker": true,
+ "External": true,
+ "ImageBitmap": true,
+ "TimeRanges": true,
+ "Option": true,
+ "TextTrack": true,
+ "Image": true,
+ "AnimationTimeline": true,
+ "VideoPlaybackQuality": true,
+ "VTTCue": true,
+ "Storage": true,
+ "XPathExpression": true,
+ "CharacterData": false,
+ "TextMetrics": true,
+ "AnimationEffectReadOnly": true,
+ "PerformanceTiming": false,
+ "PerformanceMark": true,
+ "ImageBitmapRenderingContext": true,
+ "Headers": true,
+ "Range": false,
+ "Rect": true,
+ "AnimationEffectTimingReadOnly": true,
+ "KeyframeEffect": true,
+ "Permissions": true,
+ "TextEncoder": true,
+ "ImageData": true,
+ "SpeechSynthesisVoice": true,
+ "StorageManager": true,
+ "TextTrackCue": true,
+ "WebSocket": true,
+ "DocumentType": true,
+ "XPathEvaluator": true,
+ "PerformanceNavigationTiming": true,
+ "IdleDeadline": true,
+ "FileSystem": true,
+ "FileSystemFileEntry": true,
+ "CacheStorage": true,
+ "MimeType": true,
+ "PannerNode": true,
+ "NodeFilter": true,
+ "StereoPannerNode": true,
+ "console": false,
+ "DynamicsCompressorNode": true,
+ "PaintRequest": true,
+ "RGBColor": true,
+ "FontFaceSet": false,
+ "PaintRequestList": true,
+ "FileSystemEntry": true,
+ "XMLDocument": false,
+ "SourceBuffer": false,
+ "Screen": true,
+ "NamedNodeMap": false,
+ "History": true,
+ "Response": true,
+ "AnimationEffectTiming": true,
+ "ServiceWorkerRegistration": true,
+ "CanvasRenderingContext2D": true,
+ "ScriptProcessorNode": true,
+ "FileSystemDirectoryReader": true,
+ "MimeTypeArray": true,
+ "CanvasCaptureMediaStream": true,
+ "Directory": true,
+ "mozRTCPeerConnection": true,
+ "PerformanceObserverEntryList": true,
+ "PushSubscriptionOptions": true,
+ "Text": false,
+ "IntersectionObserverEntry": true,
+ "SubtleCrypto": true,
+ "Animation": true,
+ "DataTransfer": true,
+ "TreeWalker": true,
+ "XMLHttpRequest": true,
+ "LocalMediaStream": true,
+ "ConvolverNode": true,
+ "WaveShaperNode": true,
+ "DataTransferItemList": false,
+ "Request": true,
+ "SourceBufferList": false,
+ "XSLTProcessor": true,
+ "XMLHttpRequestUpload": true,
+ "SharedWorker": true,
+ "Notification": false,
+ "DataTransferItem": true,
+ "AnalyserNode": true,
+ "mozRTCIceCandidate": true,
+ "PerformanceObserver": true,
+ "OfflineResourceList": true,
+ "FileSystemDirectoryEntry": true,
+ "DesktopNotification": false,
+ "DataChannel": true,
+ "IIRFilterNode": true,
+ "ChannelSplitterNode": true,
+ "File": true,
+ "ConstantSourceNode": true,
+ "CryptoKey": true,
+ "GainNode": true,
+ "AbortController": true,
+ "Attr": true,
+ "SpeechSynthesis": true,
+ "PushSubscription": false,
+ "XMLStylesheetProcessingInstruction": false,
+ "NodeIterator": true,
+ "VideoStreamTrack": true,
+ "XMLSerializer": true,
+ "CaretPosition": true,
+ "FormData": true,
+ "CanvasPattern": true,
+ "mozRTCSessionDescription": true,
+ "Path2D": true,
+ "PerformanceNavigation": true,
+ "URL": false,
+ "PluginArray": true,
+ "MutationRecord": true,
+ "WebKitCSSMatrix": true,
+ "PeriodicWave": true,
+ "DocumentFragment": true,
+ "DocumentTimeline": false,
+ "ScreenOrientation": true,
+ "BroadcastChannel": true,
+ "PermissionStatus": true,
+ "IntersectionObserver": true,
+ "Blob": true,
+ "MessagePort": true,
+ "BarProp": true,
+ "OscillatorNode": true,
+ "Cache": true,
+ "RadioNodeList": true,
+ "KeyframeEffectReadOnly": true,
+ "InstallTrigger": true,
+ "Function": false,
+ "Object": false,
+ "eval": true,
+ "Window": false,
+ "close": false,
+ "stop": false,
+ "focus": false,
+ "blur": false,
+ "open": true,
+ "alert": false,
+ "confirm": false,
+ "prompt": false,
+ "print": false,
+ "postMessage": true,
+ "getSelection": true,
+ "getComputedStyle": true,
+ "matchMedia": true,
+ "moveTo": false,
+ "moveBy": false,
+ "resizeTo": false,
+ "resizeBy": false,
+ "scroll": false,
+ "scrollTo": false,
+ "scrollBy": false,
+ "requestAnimationFrame": true,
+ "cancelAnimationFrame": true,
+ "getDefaultComputedStyle": false,
+ "scrollByLines": false,
+ "scrollByPages": false,
+ "sizeToContent": false,
+ "updateCommands": true,
+ "find": false,
+ "dump": true,
+ "setResizable": false,
+ "requestIdleCallback": false,
+ "cancelIdleCallback": false,
+ "btoa": true,
+ "atob": true,
+ "setTimeout": true,
+ "clearTimeout": true,
+ "setInterval": true,
+ "clearInterval": true,
+ "createImageBitmap": true,
+ "fetch": true,
+ "self": true,
+ "name": false,
+ "history": true,
+ "locationbar": true,
+ "menubar": true,
+ "personalbar": true,
+ "scrollbars": true,
+ "statusbar": true,
+ "toolbar": true,
+ "status": true,
+ "closed": true,
+ "frames": true,
+ "length": false,
+ "opener": true,
+ "parent": true,
+ "frameElement": true,
+ "navigator": true,
+ "external": true,
+ "applicationCache": true,
+ "screen": true,
+ "innerWidth": true,
+ "innerHeight": true,
+ "scrollX": true,
+ "pageXOffset": true,
+ "scrollY": true,
+ "pageYOffset": true,
+ "screenX": true,
+ "screenY": true,
+ "outerWidth": true,
+ "outerHeight": true,
+ "performance": true,
+ "mozInnerScreenX": true,
+ "mozInnerScreenY": true,
+ "devicePixelRatio": true,
+ "scrollMaxX": true,
+ "scrollMaxY": true,
+ "fullScreen": false,
+ "mozPaintCount": true,
+ "sidebar": false,
+ "crypto": true,
+ "speechSynthesis": true,
+ "localStorage": true,
+ "origin": true,
+ "isSecureContext": false,
+ "indexedDB": true,
+ "caches": true,
+ "sessionStorage": true,
+ "window": false,
+ "document": true,
+ "location": false,
+ "top": true,
+ "netscape": true,
+ "Node": true,
+ "Document": true,
+ "Performance": false,
+ "startProfiling": true,
+ "stopProfiling": true,
+ "pauseProfilers": true,
+ "resumeProfilers": true,
+ "dumpProfile": true,
+ "getMaxGCPauseSinceClear": true,
+ "clearMaxGCPauseAccumulator": true,
+ "Location": true,
+ "StyleSheetList": false,
+ "Selection": false,
+ "Element": true,
+ "AnonymousContent": false,
+ "MutationObserver": true,
+ "NodeList": true,
+ "StopIteration": true
+};
+
+
+//************************Comes from HTML file index.html's script test.js****************************
+
+/**
+* If this is true, it evaluates entire scripts instead of returning as soon as it encounters a violation.
+*
+* Also, it controls whether or not this part of the code logs to the console.
+*
+*/
+var DEBUG = true;
+console.log("DEBUG:"+DEBUG);
+
+function dbg_print(a,b){
+ if(DEBUG == true){
+ console.log(a,b)
+ }
+}
+function full_evaluate(script){
+ var res = true;
+ if(script === undefined || script == ""){
+ return [true,"Harmless null script"];
+ }
+
+ var ast = acorn.parse_dammit(script).body[0];
+
+ var flag = false;
+ var amtloops = 0;
+
+ var loopkeys = {"for":true,"if":true,"while":true,"switch":true};
+ var operators = {"||":true,"&&":true,"=":true,"==":true,"++":true,"--":true,"+=":true,"-=":true,"*":true};
+ try{
+ var tokens = acorn_base.tokenizer(script);
+ }catch(e){
+ console.warn("Tokenizer could not be initiated (probably invalid code)");
+ return [false,"Tokenizer could not be initiated (probably invalid code)"];
+ }
+ try{
+ var toke = tokens.getToken();
+ }catch(e){
+ console.warn("couldn't get first token (probably invalid code)");
+ console.warn("Continuing evaluation");
+ }
+
+ /**
+ * Given the end of an identifer token, it tests for bracket suffix notation
+ */
+ function being_called(end){
+ var i = 0;
+ while(script.charAt(end+i).match(/\s/g) !== null){
+ i++;
+ if(i >= script.length-1){
+ return false;
+ }
+ }
+ if(script.charAt(end+i) == "("){
+ return true;
+ }else{
+ return false;
+ }
+ }
+ /**
+ * Given the end of an identifer token, it tests for parentheses
+ */
+ function is_bsn(end){
+ var i = 0;
+ while(script.charAt(end+i).match(/\s/g) !== null){
+ i++;
+ if(i >= script.length-1){
+ return false;
+ }
+ }
+ if(script.charAt(end+i) == "["){
+ return true;
+ }else{
+ return false;
+ }
+ }
+ var error_count = 0;
+ while(toke.type != acorn_base.tokTypes.eof){
+ if(toke.type.keyword !== undefined){
+ // This type of loop detection ignores functional loop alternatives and ternary operators
+ //dbg_print("Keyword:"+toke.type.keyword);
+ console.log(toke);
+ if(toke.type.keyword == "function"){
+ dbg_print("%c NONTRIVIAL: Function declaration.","color:red");
+ if(DEBUG == false){
+ return [false,"NONTRIVIAL: Function declaration."];
+ }
+ }
+
+ if(loopkeys[toke.type.keyword] !== undefined){
+ amtloops++;
+ if(amtloops > 3){
+ dbg_print("%c NONTRIVIAL: Too many loops/conditionals.","color:red");
+ if(DEBUG == false){
+ return [false,"NONTRIVIAL: Too many loops/conditionals."];
+ }
+ }
+ }
+ }else if(toke.value !== undefined){
+ var status = fname_data[toke.value];
+ if(status === true){ // is the identifier banned?
+ dbg_print("%c NONTRIVIAL: nontrivial token: '"+toke.value+"'","color:red");
+ if(DEBUG == false){
+ return [false,"NONTRIVIAL: nontrivial token: '"+toke.value+"'"];
+ }
+ }else if(status === false){// is the identifier not banned?
+ // Is there bracket suffix notation?
+ if(operators[toke.value] === undefined){
+ if(is_bsn(toke.end)){
+ dbg_print("%c NONTRIVIAL: Bracket suffix notation on variable '"+toke.value+"'","color:red");
+ if(DEBUG == false){
+ return [false,"%c NONTRIVIAL: Bracket suffix notation on variable '"+toke.value+"'"];
+ }
+ }
+ }
+ }else if(status === undefined){// is the identifier user defined?
+ // Are arguments being passed to a user defined variable?
+ if(being_called(toke.end)){
+ dbg_print("%c NONTRIVIAL: User defined variable '"+toke.value+"' called as function","color:red");
+ if(DEBUG == false){
+ return [false,"NONTRIVIAL: User defined variable '"+toke.value+"' called as function"];
+ }
+ }
+ // Is there bracket suffix notation?
+ if(operators[toke.value] === undefined){
+ if(is_bsn(toke.end)){
+ dbg_print("%c NONTRIVIAL: Bracket suffix notation on variable '"+toke.value+"'","color:red");
+ if(DEBUG == false){
+ return [false,"NONTRIVIAL: Bracket suffix notation on variable '"+toke.value+"'"];
+ }
+ }
+ }
+ }else{
+ dbg_print("trivial token:"+toke.value);
+ }
+ }
+ // If not a keyword or an identifier it's some kind of operator, field parenthesis, brackets
+ try{
+ toke = tokens.getToken();
+ }catch(e){
+ dbg_print("Denied script because it cannot be parsed.");
+ return [false,"NONTRIVIAL: Cannot be parsed."];
+ console.warn("Continuing evaluation");
+ error_count++;
+ }
+ }
+
+ dbg_print("%cAppears to be trivial.","color:green;");
+ return [true,"Script appears to be trivial."];
+}
+
+//****************************************************************************************************
+
+window.onload = function () {
+ document.getElementById("parse").addEventListener("click",function(){
+ var script = document.getElementById("input").value;
+ var ast = acorn.parse_dammit(script).body[0];
+ document.getElementById("output").innerHTML = JSON.stringify(ast, null, '\t'); // Indented with tab
+ document.getElementById("output").innerHTML = full_evaluate(script) + "\n\n" + document.getElementById("output").innerHTML;
+ });
+}
+
+
+},{"acorn":2,"acorn/dist/acorn_loose":3,"acorn/dist/walk":4}],2:[function(require,module,exports){
+(function (global, factory) {
+ typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
+ typeof define === 'function' && define.amd ? define(['exports'], factory) :
+ (factory((global.acorn = global.acorn || {})));
+}(this, (function (exports) { 'use strict';
+
+// Reserved word lists for various dialects of the language
+
+var reservedWords = {
+ 3: "abstract boolean byte char class double enum export extends final float goto implements import int interface long native package private protected public short static super synchronized throws transient volatile",
+ 5: "class enum extends super const export import",
+ 6: "enum",
+ strict: "implements interface let package private protected public static yield",
+ strictBind: "eval arguments"
+};
+
+// And the keywords
+
+var ecma5AndLessKeywords = "break case catch continue debugger default do else finally for function if return switch throw try var while with null true false instanceof typeof void delete new in this";
+
+var keywords = {
+ 5: ecma5AndLessKeywords,
+ 6: ecma5AndLessKeywords + " const class extends export import super"
+};
+
+// ## Character categories
+
+// Big ugly regular expressions that match characters in the
+// whitespace, identifier, and identifier-start categories. These
+// are only applied when a character is found to actually have a
+// code point above 128.
+// Generated by `bin/generate-identifier-regex.js`.
+
+var nonASCIIidentifierStartChars = "\xaa\xb5\xba\xc0-\xd6\xd8-\xf6\xf8-\u02c1\u02c6-\u02d1\u02e0-\u02e4\u02ec\u02ee\u0370-\u0374\u0376\u0377\u037a-\u037d\u037f\u0386\u0388-\u038a\u038c\u038e-\u03a1\u03a3-\u03f5\u03f7-\u0481\u048a-\u052f\u0531-\u0556\u0559\u0561-\u0587\u05d0-\u05ea\u05f0-\u05f2\u0620-\u064a\u066e\u066f\u0671-\u06d3\u06d5\u06e5\u06e6\u06ee\u06ef\u06fa-\u06fc\u06ff\u0710\u0712-\u072f\u074d-\u07a5\u07b1\u07ca-\u07ea\u07f4\u07f5\u07fa\u0800-\u0815\u081a\u0824\u0828\u0840-\u0858\u08a0-\u08b4\u08b6-\u08bd\u0904-\u0939\u093d\u0950\u0958-\u0961\u0971-\u0980\u0985-\u098c\u098f\u0990\u0993-\u09a8\u09aa-\u09b0\u09b2\u09b6-\u09b9\u09bd\u09ce\u09dc\u09dd\u09df-\u09e1\u09f0\u09f1\u0a05-\u0a0a\u0a0f\u0a10\u0a13-\u0a28\u0a2a-\u0a30\u0a32\u0a33\u0a35\u0a36\u0a38\u0a39\u0a59-\u0a5c\u0a5e\u0a72-\u0a74\u0a85-\u0a8d\u0a8f-\u0a91\u0a93-\u0aa8\u0aaa-\u0ab0\u0ab2\u0ab3\u0ab5-\u0ab9\u0abd\u0ad0\u0ae0\u0ae1\u0af9\u0b05-\u0b0c\u0b0f\u0b10\u0b13-\u0b28\u0b2a-\u0b30\u0b32\u0b33\u0b35-\u0b39\u0b3d\u0b5c\u0b5d\u0b5f-\u0b61\u0b71\u0b83\u0b85-\u0b8a\u0b8e-\u0b90\u0b92-\u0b95\u0b99\u0b9a\u0b9c\u0b9e\u0b9f\u0ba3\u0ba4\u0ba8-\u0baa\u0bae-\u0bb9\u0bd0\u0c05-\u0c0c\u0c0e-\u0c10\u0c12-\u0c28\u0c2a-\u0c39\u0c3d\u0c58-\u0c5a\u0c60\u0c61\u0c80\u0c85-\u0c8c\u0c8e-\u0c90\u0c92-\u0ca8\u0caa-\u0cb3\u0cb5-\u0cb9\u0cbd\u0cde\u0ce0\u0ce1\u0cf1\u0cf2\u0d05-\u0d0c\u0d0e-\u0d10\u0d12-\u0d3a\u0d3d\u0d4e\u0d54-\u0d56\u0d5f-\u0d61\u0d7a-\u0d7f\u0d85-\u0d96\u0d9a-\u0db1\u0db3-\u0dbb\u0dbd\u0dc0-\u0dc6\u0e01-\u0e30\u0e32\u0e33\u0e40-\u0e46\u0e81\u0e82\u0e84\u0e87\u0e88\u0e8a\u0e8d\u0e94-\u0e97\u0e99-\u0e9f\u0ea1-\u0ea3\u0ea5\u0ea7\u0eaa\u0eab\u0ead-\u0eb0\u0eb2\u0eb3\u0ebd\u0ec0-\u0ec4\u0ec6\u0edc-\u0edf\u0f00\u0f40-\u0f47\u0f49-\u0f6c\u0f88-\u0f8c\u1000-\u102a\u103f\u1050-\u1055\u105a-\u105d\u1061\u1065\u1066\u106e-\u1070\u1075-\u1081\u108e\u10a0-\u10c5\u10c7\u10cd\u10d0-\u10fa\u10fc-\u1248\u124a-\u124d\u1250-\u1256\u1258\u125a-\u125d\u1260-\u1288\u128a-\u128d\u1290-\u12b0\u12b2-\u12b5\u12b8-\u12be\u12c0\u12c2-\u12c5\u12c8-\u12d6\u12d8-\u1310\u1312-\u1315\u1318-\u135a\u1380-\u138f\u13a0-\u13f5\u13f8-\u13fd\u1401-\u166c\u166f-\u167f\u1681-\u169a\u16a0-\u16ea\u16ee-\u16f8\u1700-\u170c\u170e-\u1711\u1720-\u1731\u1740-\u1751\u1760-\u176c\u176e-\u1770\u1780-\u17b3\u17d7\u17dc\u1820-\u1877\u1880-\u18a8\u18aa\u18b0-\u18f5\u1900-\u191e\u1950-\u196d\u1970-\u1974\u1980-\u19ab\u19b0-\u19c9\u1a00-\u1a16\u1a20-\u1a54\u1aa7\u1b05-\u1b33\u1b45-\u1b4b\u1b83-\u1ba0\u1bae\u1baf\u1bba-\u1be5\u1c00-\u1c23\u1c4d-\u1c4f\u1c5a-\u1c7d\u1c80-\u1c88\u1ce9-\u1cec\u1cee-\u1cf1\u1cf5\u1cf6\u1d00-\u1dbf\u1e00-\u1f15\u1f18-\u1f1d\u1f20-\u1f45\u1f48-\u1f4d\u1f50-\u1f57\u1f59\u1f5b\u1f5d\u1f5f-\u1f7d\u1f80-\u1fb4\u1fb6-\u1fbc\u1fbe\u1fc2-\u1fc4\u1fc6-\u1fcc\u1fd0-\u1fd3\u1fd6-\u1fdb\u1fe0-\u1fec\u1ff2-\u1ff4\u1ff6-\u1ffc\u2071\u207f\u2090-\u209c\u2102\u2107\u210a-\u2113\u2115\u2118-\u211d\u2124\u2126\u2128\u212a-\u2139\u213c-\u213f\u2145-\u2149\u214e\u2160-\u2188\u2c00-\u2c2e\u2c30-\u2c5e\u2c60-\u2ce4\u2ceb-\u2cee\u2cf2\u2cf3\u2d00-\u2d25\u2d27\u2d2d\u2d30-\u2d67\u2d6f\u2d80-\u2d96\u2da0-\u2da6\u2da8-\u2dae\u2db0-\u2db6\u2db8-\u2dbe\u2dc0-\u2dc6\u2dc8-\u2dce\u2dd0-\u2dd6\u2dd8-\u2dde\u3005-\u3007\u3021-\u3029\u3031-\u3035\u3038-\u303c\u3041-\u3096\u309b-\u309f\u30a1-\u30fa\u30fc-\u30ff\u3105-\u312d\u3131-\u318e\u31a0-\u31ba\u31f0-\u31ff\u3400-\u4db5\u4e00-\u9fd5\ua000-\ua48c\ua4d0-\ua4fd\ua500-\ua60c\ua610-\ua61f\ua62a\ua62b\ua640-\ua66e\ua67f-\ua69d\ua6a0-\ua6ef\ua717-\ua71f\ua722-\ua788\ua78b-\ua7ae\ua7b0-\ua7b7\ua7f7-\ua801\ua803-\ua805\ua807-\ua80a\ua80c-\ua822\ua840-\ua873\ua882-\ua8b3\ua8f2-\ua8f7\ua8fb\ua8fd\ua90a-\ua925\ua930-\ua946\ua960-\ua97c\ua984-\ua9b2\ua9cf\ua9e0-\ua9e4\ua9e6-\ua9ef\ua9fa-\ua9fe\uaa00-\uaa28\uaa40-\uaa42\uaa44-\uaa4b\uaa60-\uaa76\uaa7a\uaa7e-\uaaaf\uaab1\uaab5\uaab6\uaab9-\uaabd\uaac0\uaac2\uaadb-\uaadd\uaae0-\uaaea\uaaf2-\uaaf4\uab01-\uab06\uab09-\uab0e\uab11-\uab16\uab20-\uab26\uab28-\uab2e\uab30-\uab5a\uab5c-\uab65\uab70-\uabe2\uac00-\ud7a3\ud7b0-\ud7c6\ud7cb-\ud7fb\uf900-\ufa6d\ufa70-\ufad9\ufb00-\ufb06\ufb13-\ufb17\ufb1d\ufb1f-\ufb28\ufb2a-\ufb36\ufb38-\ufb3c\ufb3e\ufb40\ufb41\ufb43\ufb44\ufb46-\ufbb1\ufbd3-\ufd3d\ufd50-\ufd8f\ufd92-\ufdc7\ufdf0-\ufdfb\ufe70-\ufe74\ufe76-\ufefc\uff21-\uff3a\uff41-\uff5a\uff66-\uffbe\uffc2-\uffc7\uffca-\uffcf\uffd2-\uffd7\uffda-\uffdc";
+var nonASCIIidentifierChars = "\u200c\u200d\xb7\u0300-\u036f\u0387\u0483-\u0487\u0591-\u05bd\u05bf\u05c1\u05c2\u05c4\u05c5\u05c7\u0610-\u061a\u064b-\u0669\u0670\u06d6-\u06dc\u06df-\u06e4\u06e7\u06e8\u06ea-\u06ed\u06f0-\u06f9\u0711\u0730-\u074a\u07a6-\u07b0\u07c0-\u07c9\u07eb-\u07f3\u0816-\u0819\u081b-\u0823\u0825-\u0827\u0829-\u082d\u0859-\u085b\u08d4-\u08e1\u08e3-\u0903\u093a-\u093c\u093e-\u094f\u0951-\u0957\u0962\u0963\u0966-\u096f\u0981-\u0983\u09bc\u09be-\u09c4\u09c7\u09c8\u09cb-\u09cd\u09d7\u09e2\u09e3\u09e6-\u09ef\u0a01-\u0a03\u0a3c\u0a3e-\u0a42\u0a47\u0a48\u0a4b-\u0a4d\u0a51\u0a66-\u0a71\u0a75\u0a81-\u0a83\u0abc\u0abe-\u0ac5\u0ac7-\u0ac9\u0acb-\u0acd\u0ae2\u0ae3\u0ae6-\u0aef\u0b01-\u0b03\u0b3c\u0b3e-\u0b44\u0b47\u0b48\u0b4b-\u0b4d\u0b56\u0b57\u0b62\u0b63\u0b66-\u0b6f\u0b82\u0bbe-\u0bc2\u0bc6-\u0bc8\u0bca-\u0bcd\u0bd7\u0be6-\u0bef\u0c00-\u0c03\u0c3e-\u0c44\u0c46-\u0c48\u0c4a-\u0c4d\u0c55\u0c56\u0c62\u0c63\u0c66-\u0c6f\u0c81-\u0c83\u0cbc\u0cbe-\u0cc4\u0cc6-\u0cc8\u0cca-\u0ccd\u0cd5\u0cd6\u0ce2\u0ce3\u0ce6-\u0cef\u0d01-\u0d03\u0d3e-\u0d44\u0d46-\u0d48\u0d4a-\u0d4d\u0d57\u0d62\u0d63\u0d66-\u0d6f\u0d82\u0d83\u0dca\u0dcf-\u0dd4\u0dd6\u0dd8-\u0ddf\u0de6-\u0def\u0df2\u0df3\u0e31\u0e34-\u0e3a\u0e47-\u0e4e\u0e50-\u0e59\u0eb1\u0eb4-\u0eb9\u0ebb\u0ebc\u0ec8-\u0ecd\u0ed0-\u0ed9\u0f18\u0f19\u0f20-\u0f29\u0f35\u0f37\u0f39\u0f3e\u0f3f\u0f71-\u0f84\u0f86\u0f87\u0f8d-\u0f97\u0f99-\u0fbc\u0fc6\u102b-\u103e\u1040-\u1049\u1056-\u1059\u105e-\u1060\u1062-\u1064\u1067-\u106d\u1071-\u1074\u1082-\u108d\u108f-\u109d\u135d-\u135f\u1369-\u1371\u1712-\u1714\u1732-\u1734\u1752\u1753\u1772\u1773\u17b4-\u17d3\u17dd\u17e0-\u17e9\u180b-\u180d\u1810-\u1819\u18a9\u1920-\u192b\u1930-\u193b\u1946-\u194f\u19d0-\u19da\u1a17-\u1a1b\u1a55-\u1a5e\u1a60-\u1a7c\u1a7f-\u1a89\u1a90-\u1a99\u1ab0-\u1abd\u1b00-\u1b04\u1b34-\u1b44\u1b50-\u1b59\u1b6b-\u1b73\u1b80-\u1b82\u1ba1-\u1bad\u1bb0-\u1bb9\u1be6-\u1bf3\u1c24-\u1c37\u1c40-\u1c49\u1c50-\u1c59\u1cd0-\u1cd2\u1cd4-\u1ce8\u1ced\u1cf2-\u1cf4\u1cf8\u1cf9\u1dc0-\u1df5\u1dfb-\u1dff\u203f\u2040\u2054\u20d0-\u20dc\u20e1\u20e5-\u20f0\u2cef-\u2cf1\u2d7f\u2de0-\u2dff\u302a-\u302f\u3099\u309a\ua620-\ua629\ua66f\ua674-\ua67d\ua69e\ua69f\ua6f0\ua6f1\ua802\ua806\ua80b\ua823-\ua827\ua880\ua881\ua8b4-\ua8c5\ua8d0-\ua8d9\ua8e0-\ua8f1\ua900-\ua909\ua926-\ua92d\ua947-\ua953\ua980-\ua983\ua9b3-\ua9c0\ua9d0-\ua9d9\ua9e5\ua9f0-\ua9f9\uaa29-\uaa36\uaa43\uaa4c\uaa4d\uaa50-\uaa59\uaa7b-\uaa7d\uaab0\uaab2-\uaab4\uaab7\uaab8\uaabe\uaabf\uaac1\uaaeb-\uaaef\uaaf5\uaaf6\uabe3-\uabea\uabec\uabed\uabf0-\uabf9\ufb1e\ufe00-\ufe0f\ufe20-\ufe2f\ufe33\ufe34\ufe4d-\ufe4f\uff10-\uff19\uff3f";
+
+var nonASCIIidentifierStart = new RegExp("[" + nonASCIIidentifierStartChars + "]");
+var nonASCIIidentifier = new RegExp("[" + nonASCIIidentifierStartChars + nonASCIIidentifierChars + "]");
+
+nonASCIIidentifierStartChars = nonASCIIidentifierChars = null;
+
+// These are a run-length and offset encoded representation of the
+// >0xffff code points that are a valid part of identifiers. The
+// offset starts at 0x10000, and each pair of numbers represents an
+// offset to the next range, and then a size of the range. They were
+// generated by bin/generate-identifier-regex.js
+
+// eslint-disable-next-line comma-spacing
+var astralIdentifierStartCodes = [0,11,2,25,2,18,2,1,2,14,3,13,35,122,70,52,268,28,4,48,48,31,17,26,6,37,11,29,3,35,5,7,2,4,43,157,19,35,5,35,5,39,9,51,157,310,10,21,11,7,153,5,3,0,2,43,2,1,4,0,3,22,11,22,10,30,66,18,2,1,11,21,11,25,71,55,7,1,65,0,16,3,2,2,2,26,45,28,4,28,36,7,2,27,28,53,11,21,11,18,14,17,111,72,56,50,14,50,785,52,76,44,33,24,27,35,42,34,4,0,13,47,15,3,22,0,2,0,36,17,2,24,85,6,2,0,2,3,2,14,2,9,8,46,39,7,3,1,3,21,2,6,2,1,2,4,4,0,19,0,13,4,159,52,19,3,54,47,21,1,2,0,185,46,42,3,37,47,21,0,60,42,86,25,391,63,32,0,449,56,264,8,2,36,18,0,50,29,881,921,103,110,18,195,2749,1070,4050,582,8634,568,8,30,114,29,19,47,17,3,32,20,6,18,881,68,12,0,67,12,65,0,32,6124,20,754,9486,1,3071,106,6,12,4,8,8,9,5991,84,2,70,2,1,3,0,3,1,3,3,2,11,2,0,2,6,2,64,2,3,3,7,2,6,2,27,2,3,2,4,2,0,4,6,2,339,3,24,2,24,2,30,2,24,2,30,2,24,2,30,2,24,2,30,2,24,2,7,4149,196,60,67,1213,3,2,26,2,1,2,0,3,0,2,9,2,3,2,0,2,0,7,0,5,0,2,0,2,0,2,2,2,1,2,0,3,0,2,0,2,0,2,0,2,0,2,1,2,0,3,3,2,6,2,3,2,3,2,0,2,9,2,16,6,2,2,4,2,16,4421,42710,42,4148,12,221,3,5761,10591,541];
+
+// eslint-disable-next-line comma-spacing
+var astralIdentifierCodes = [509,0,227,0,150,4,294,9,1368,2,2,1,6,3,41,2,5,0,166,1,1306,2,54,14,32,9,16,3,46,10,54,9,7,2,37,13,2,9,52,0,13,2,49,13,10,2,4,9,83,11,7,0,161,11,6,9,7,3,57,0,2,6,3,1,3,2,10,0,11,1,3,6,4,4,193,17,10,9,87,19,13,9,214,6,3,8,28,1,83,16,16,9,82,12,9,9,84,14,5,9,423,9,838,7,2,7,17,9,57,21,2,13,19882,9,135,4,60,6,26,9,1016,45,17,3,19723,1,5319,4,4,5,9,7,3,6,31,3,149,2,1418,49,513,54,5,49,9,0,15,0,23,4,2,14,1361,6,2,16,3,6,2,1,2,4,2214,6,110,6,6,9,792487,239];
+
+// This has a complexity linear to the value of the code. The
+// assumption is that looking up astral identifier characters is
+// rare.
+function isInAstralSet(code, set) {
+ var pos = 0x10000;
+ for (var i = 0; i < set.length; i += 2) {
+ pos += set[i];
+ if (pos > code) { return false }
+ pos += set[i + 1];
+ if (pos >= code) { return true }
+ }
+}
+
+// Test whether a given character code starts an identifier.
+
+function isIdentifierStart(code, astral) {
+ if (code < 65) { return code === 36 }
+ if (code < 91) { return true }
+ if (code < 97) { return code === 95 }
+ if (code < 123) { return true }
+ if (code <= 0xffff) { return code >= 0xaa && nonASCIIidentifierStart.test(String.fromCharCode(code)) }
+ if (astral === false) { return false }
+ return isInAstralSet(code, astralIdentifierStartCodes)
+}
+
+// Test whether a given character is part of an identifier.
+
+function isIdentifierChar(code, astral) {
+ if (code < 48) { return code === 36 }
+ if (code < 58) { return true }
+ if (code < 65) { return false }
+ if (code < 91) { return true }
+ if (code < 97) { return code === 95 }
+ if (code < 123) { return true }
+ if (code <= 0xffff) { return code >= 0xaa && nonASCIIidentifier.test(String.fromCharCode(code)) }
+ if (astral === false) { return false }
+ return isInAstralSet(code, astralIdentifierStartCodes) || isInAstralSet(code, astralIdentifierCodes)
+}
+
+// ## Token types
+
+// The assignment of fine-grained, information-carrying type objects
+// allows the tokenizer to store the information it has about a
+// token in a way that is very cheap for the parser to look up.
+
+// All token type variables start with an underscore, to make them
+// easy to recognize.
+
+// The `beforeExpr` property is used to disambiguate between regular
+// expressions and divisions. It is set on all token types that can
+// be followed by an expression (thus, a slash after them would be a
+// regular expression).
+//
+// The `startsExpr` property is used to check if the token ends a
+// `yield` expression. It is set on all token types that either can
+// directly start an expression (like a quotation mark) or can
+// continue an expression (like the body of a string).
+//
+// `isLoop` marks a keyword as starting a loop, which is important
+// to know when parsing a label, in order to allow or disallow
+// continue jumps to that label.
+
+var TokenType = function TokenType(label, conf) {
+ if ( conf === void 0 ) conf = {};
+
+ this.label = label;
+ this.keyword = conf.keyword;
+ this.beforeExpr = !!conf.beforeExpr;
+ this.startsExpr = !!conf.startsExpr;
+ this.isLoop = !!conf.isLoop;
+ this.isAssign = !!conf.isAssign;
+ this.prefix = !!conf.prefix;
+ this.postfix = !!conf.postfix;
+ this.binop = conf.binop || null;
+ this.updateContext = null;
+};
+
+function binop(name, prec) {
+ return new TokenType(name, {beforeExpr: true, binop: prec})
+}
+var beforeExpr = {beforeExpr: true};
+var startsExpr = {startsExpr: true};
+
+// Map keyword names to token types.
+
+var keywords$1 = {};
+
+// Succinct definitions of keyword token types
+function kw(name, options) {
+ if ( options === void 0 ) options = {};
+
+ options.keyword = name;
+ return keywords$1[name] = new TokenType(name, options)
+}
+
+var types = {
+ num: new TokenType("num", startsExpr),
+ regexp: new TokenType("regexp", startsExpr),
+ string: new TokenType("string", startsExpr),
+ name: new TokenType("name", startsExpr),
+ eof: new TokenType("eof"),
+
+ // Punctuation token types.
+ bracketL: new TokenType("[", {beforeExpr: true, startsExpr: true}),
+ bracketR: new TokenType("]"),
+ braceL: new TokenType("{", {beforeExpr: true, startsExpr: true}),
+ braceR: new TokenType("}"),
+ parenL: new TokenType("(", {beforeExpr: true, startsExpr: true}),
+ parenR: new TokenType(")"),
+ comma: new TokenType(",", beforeExpr),
+ semi: new TokenType(";", beforeExpr),
+ colon: new TokenType(":", beforeExpr),
+ dot: new TokenType("."),
+ question: new TokenType("?", beforeExpr),
+ arrow: new TokenType("=>", beforeExpr),
+ template: new TokenType("template"),
+ invalidTemplate: new TokenType("invalidTemplate"),
+ ellipsis: new TokenType("...", beforeExpr),
+ backQuote: new TokenType("`", startsExpr),
+ dollarBraceL: new TokenType("${", {beforeExpr: true, startsExpr: true}),
+
+ // Operators. These carry several kinds of properties to help the
+ // parser use them properly (the presence of these properties is
+ // what categorizes them as operators).
+ //
+ // `binop`, when present, specifies that this operator is a binary
+ // operator, and will refer to its precedence.
+ //
+ // `prefix` and `postfix` mark the operator as a prefix or postfix
+ // unary operator.
+ //
+ // `isAssign` marks all of `=`, `+=`, `-=` etcetera, which act as
+ // binary operators with a very low precedence, that should result
+ // in AssignmentExpression nodes.
+
+ eq: new TokenType("=", {beforeExpr: true, isAssign: true}),
+ assign: new TokenType("_=", {beforeExpr: true, isAssign: true}),
+ incDec: new TokenType("++/--", {prefix: true, postfix: true, startsExpr: true}),
+ prefix: new TokenType("!/~", {beforeExpr: true, prefix: true, startsExpr: true}),
+ logicalOR: binop("||", 1),
+ logicalAND: binop("&&", 2),
+ bitwiseOR: binop("|", 3),
+ bitwiseXOR: binop("^", 4),
+ bitwiseAND: binop("&", 5),
+ equality: binop("==/!=/===/!==", 6),
+ relational: binop("</>/<=/>=", 7),
+ bitShift: binop("<</>>/>>>", 8),
+ plusMin: new TokenType("+/-", {beforeExpr: true, binop: 9, prefix: true, startsExpr: true}),
+ modulo: binop("%", 10),
+ star: binop("*", 10),
+ slash: binop("/", 10),
+ starstar: new TokenType("**", {beforeExpr: true}),
+
+ // Keyword token types.
+ _break: kw("break"),
+ _case: kw("case", beforeExpr),
+ _catch: kw("catch"),
+ _continue: kw("continue"),
+ _debugger: kw("debugger"),
+ _default: kw("default", beforeExpr),
+ _do: kw("do", {isLoop: true, beforeExpr: true}),
+ _else: kw("else", beforeExpr),
+ _finally: kw("finally"),
+ _for: kw("for", {isLoop: true}),
+ _function: kw("function", startsExpr),
+ _if: kw("if"),
+ _return: kw("return", beforeExpr),
+ _switch: kw("switch"),
+ _throw: kw("throw", beforeExpr),
+ _try: kw("try"),
+ _var: kw("var"),
+ _const: kw("const"),
+ _while: kw("while", {isLoop: true}),
+ _with: kw("with"),
+ _new: kw("new", {beforeExpr: true, startsExpr: true}),
+ _this: kw("this", startsExpr),
+ _super: kw("super", startsExpr),
+ _class: kw("class", startsExpr),
+ _extends: kw("extends", beforeExpr),
+ _export: kw("export"),
+ _import: kw("import"),
+ _null: kw("null", startsExpr),
+ _true: kw("true", startsExpr),
+ _false: kw("false", startsExpr),
+ _in: kw("in", {beforeExpr: true, binop: 7}),
+ _instanceof: kw("instanceof", {beforeExpr: true, binop: 7}),
+ _typeof: kw("typeof", {beforeExpr: true, prefix: true, startsExpr: true}),
+ _void: kw("void", {beforeExpr: true, prefix: true, startsExpr: true}),
+ _delete: kw("delete", {beforeExpr: true, prefix: true, startsExpr: true})
+};
+
+// Matches a whole line break (where CRLF is considered a single
+// line break). Used to count lines.
+
+var lineBreak = /\r\n?|\n|\u2028|\u2029/;
+var lineBreakG = new RegExp(lineBreak.source, "g");
+
+function isNewLine(code) {
+ return code === 10 || code === 13 || code === 0x2028 || code === 0x2029
+}
+
+var nonASCIIwhitespace = /[\u1680\u180e\u2000-\u200a\u202f\u205f\u3000\ufeff]/;
+
+var skipWhiteSpace = /(?:\s|\/\/.*|\/\*[^]*?\*\/)*/g;
+
+var ref = Object.prototype;
+var hasOwnProperty = ref.hasOwnProperty;
+var toString = ref.toString;
+
+// Checks if an object has a property.
+
+function has(obj, propName) {
+ return hasOwnProperty.call(obj, propName)
+}
+
+var isArray = Array.isArray || (function (obj) { return (
+ toString.call(obj) === "[object Array]"
+); });
+
+// These are used when `options.locations` is on, for the
+// `startLoc` and `endLoc` properties.
+
+var Position = function Position(line, col) {
+ this.line = line;
+ this.column = col;
+};
+
+Position.prototype.offset = function offset (n) {
+ return new Position(this.line, this.column + n)
+};
+
+var SourceLocation = function SourceLocation(p, start, end) {
+ this.start = start;
+ this.end = end;
+ if (p.sourceFile !== null) { this.source = p.sourceFile; }
+};
+
+// The `getLineInfo` function is mostly useful when the
+// `locations` option is off (for performance reasons) and you
+// want to find the line/column position for a given character
+// offset. `input` should be the code string that the offset refers
+// into.
+
+function getLineInfo(input, offset) {
+ for (var line = 1, cur = 0;;) {
+ lineBreakG.lastIndex = cur;
+ var match = lineBreakG.exec(input);
+ if (match && match.index < offset) {
+ ++line;
+ cur = match.index + match[0].length;
+ } else {
+ return new Position(line, offset - cur)
+ }
+ }
+}
+
+// A second optional argument can be given to further configure
+// the parser process. These options are recognized:
+
+var defaultOptions = {
+ // `ecmaVersion` indicates the ECMAScript version to parse. Must
+ // be either 3, 5, 6 (2015), 7 (2016), or 8 (2017). This influences support
+ // for strict mode, the set of reserved words, and support for
+ // new syntax features. The default is 7.
+ ecmaVersion: 7,
+ // `sourceType` indicates the mode the code should be parsed in.
+ // Can be either `"script"` or `"module"`. This influences global
+ // strict mode and parsing of `import` and `export` declarations.
+ sourceType: "script",
+ // `onInsertedSemicolon` can be a callback that will be called
+ // when a semicolon is automatically inserted. It will be passed
+ // th position of the comma as an offset, and if `locations` is
+ // enabled, it is given the location as a `{line, column}` object
+ // as second argument.
+ onInsertedSemicolon: null,
+ // `onTrailingComma` is similar to `onInsertedSemicolon`, but for
+ // trailing commas.
+ onTrailingComma: null,
+ // By default, reserved words are only enforced if ecmaVersion >= 5.
+ // Set `allowReserved` to a boolean value to explicitly turn this on
+ // an off. When this option has the value "never", reserved words
+ // and keywords can also not be used as property names.
+ allowReserved: null,
+ // When enabled, a return at the top level is not considered an
+ // error.
+ allowReturnOutsideFunction: false,
+ // When enabled, import/export statements are not constrained to
+ // appearing at the top of the program.
+ allowImportExportEverywhere: false,
+ // When enabled, hashbang directive in the beginning of file
+ // is allowed and treated as a line comment.
+ allowHashBang: false,
+ // When `locations` is on, `loc` properties holding objects with
+ // `start` and `end` properties in `{line, column}` form (with
+ // line being 1-based and column 0-based) will be attached to the
+ // nodes.
+ locations: false,
+ // A function can be passed as `onToken` option, which will
+ // cause Acorn to call that function with object in the same
+ // format as tokens returned from `tokenizer().getToken()`. Note
+ // that you are not allowed to call the parser from the
+ // callback—that will corrupt its internal state.
+ onToken: null,
+ // A function can be passed as `onComment` option, which will
+ // cause Acorn to call that function with `(block, text, start,
+ // end)` parameters whenever a comment is skipped. `block` is a
+ // boolean indicating whether this is a block (`/* */`) comment,
+ // `text` is the content of the comment, and `start` and `end` are
+ // character offsets that denote the start and end of the comment.
+ // When the `locations` option is on, two more parameters are
+ // passed, the full `{line, column}` locations of the start and
+ // end of the comments. Note that you are not allowed to call the
+ // parser from the callback—that will corrupt its internal state.
+ onComment: null,
+ // Nodes have their start and end characters offsets recorded in
+ // `start` and `end` properties (directly on the node, rather than
+ // the `loc` object, which holds line/column data. To also add a
+ // [semi-standardized][range] `range` property holding a `[start,
+ // end]` array with the same numbers, set the `ranges` option to
+ // `true`.
+ //
+ // [range]: https://bugzilla.mozilla.org/show_bug.cgi?id=745678
+ ranges: false,
+ // It is possible to parse multiple files into a single AST by
+ // passing the tree produced by parsing the first file as
+ // `program` option in subsequent parses. This will add the
+ // toplevel forms of the parsed file to the `Program` (top) node
+ // of an existing parse tree.
+ program: null,
+ // When `locations` is on, you can pass this to record the source
+ // file in every node's `loc` object.
+ sourceFile: null,
+ // This value, if given, is stored in every node, whether
+ // `locations` is on or off.
+ directSourceFile: null,
+ // When enabled, parenthesized expressions are represented by
+ // (non-standard) ParenthesizedExpression nodes
+ preserveParens: false,
+ plugins: {}
+};
+
+// Interpret and default an options object
+
+function getOptions(opts) {
+ var options = {};
+
+ for (var opt in defaultOptions)
+ { options[opt] = opts && has(opts, opt) ? opts[opt] : defaultOptions[opt]; }
+
+ if (options.ecmaVersion >= 2015)
+ { options.ecmaVersion -= 2009; }
+
+ if (options.allowReserved == null)
+ { options.allowReserved = options.ecmaVersion < 5; }
+
+ if (isArray(options.onToken)) {
+ var tokens = options.onToken;
+ options.onToken = function (token) { return tokens.push(token); };
+ }
+ if (isArray(options.onComment))
+ { options.onComment = pushComment(options, options.onComment); }
+
+ return options
+}
+
+function pushComment(options, array) {
+ return function(block, text, start, end, startLoc, endLoc) {
+ var comment = {
+ type: block ? "Block" : "Line",
+ value: text,
+ start: start,
+ end: end
+ };
+ if (options.locations)
+ { comment.loc = new SourceLocation(this, startLoc, endLoc); }
+ if (options.ranges)
+ { comment.range = [start, end]; }
+ array.push(comment);
+ }
+}
+
+// Registered plugins
+var plugins = {};
+
+function keywordRegexp(words) {
+ return new RegExp("^(?:" + words.replace(/ /g, "|") + ")$")
+}
+
+var Parser = function Parser(options, input, startPos) {
+ this.options = options = getOptions(options);
+ this.sourceFile = options.sourceFile;
+ this.keywords = keywordRegexp(keywords[options.ecmaVersion >= 6 ? 6 : 5]);
+ var reserved = "";
+ if (!options.allowReserved) {
+ for (var v = options.ecmaVersion;; v--)
+ { if (reserved = reservedWords[v]) { break } }
+ if (options.sourceType == "module") { reserved += " await"; }
+ }
+ this.reservedWords = keywordRegexp(reserved);
+ var reservedStrict = (reserved ? reserved + " " : "") + reservedWords.strict;
+ this.reservedWordsStrict = keywordRegexp(reservedStrict);
+ this.reservedWordsStrictBind = keywordRegexp(reservedStrict + " " + reservedWords.strictBind);
+ this.input = String(input);
+
+ // Used to signal to callers of `readWord1` whether the word
+ // contained any escape sequences. This is needed because words with
+ // escape sequences must not be interpreted as keywords.
+ this.containsEsc = false;
+
+ // Load plugins
+ this.loadPlugins(options.plugins);
+
+ // Set up token state
+
+ // The current position of the tokenizer in the input.
+ if (startPos) {
+ this.pos = startPos;
+ this.lineStart = this.input.lastIndexOf("\n", startPos - 1) + 1;
+ this.curLine = this.input.slice(0, this.lineStart).split(lineBreak).length;
+ } else {
+ this.pos = this.lineStart = 0;
+ this.curLine = 1;
+ }
+
+ // Properties of the current token:
+ // Its type
+ this.type = types.eof;
+ // For tokens that include more information than their type, the value
+ this.value = null;
+ // Its start and end offset
+ this.start = this.end = this.pos;
+ // And, if locations are used, the {line, column} object
+ // corresponding to those offsets
+ this.startLoc = this.endLoc = this.curPosition();
+
+ // Position information for the previous token
+ this.lastTokEndLoc = this.lastTokStartLoc = null;
+ this.lastTokStart = this.lastTokEnd = this.pos;
+
+ // The context stack is used to superficially track syntactic
+ // context to predict whether a regular expression is allowed in a
+ // given position.
+ this.context = this.initialContext();
+ this.exprAllowed = true;
+
+ // Figure out if it's a module code.
+ this.inModule = options.sourceType === "module";
+ this.strict = this.inModule || this.strictDirective(this.pos);
+
+ // Used to signify the start of a potential arrow function
+ this.potentialArrowAt = -1;
+
+ // Flags to track whether we are in a function, a generator, an async function.
+ this.inFunction = this.inGenerator = this.inAsync = false;
+ // Positions to delayed-check that yield/await does not exist in default parameters.
+ this.yieldPos = this.awaitPos = 0;
+ // Labels in scope.
+ this.labels = [];
+
+ // If enabled, skip leading hashbang line.
+ if (this.pos === 0 && options.allowHashBang && this.input.slice(0, 2) === "#!")
+ { this.skipLineComment(2); }
+
+ // Scope tracking for duplicate variable names (see scope.js)
+ this.scopeStack = [];
+ this.enterFunctionScope();
+};
+
+// DEPRECATED Kept for backwards compatibility until 3.0 in case a plugin uses them
+Parser.prototype.isKeyword = function isKeyword (word) { return this.keywords.test(word) };
+Parser.prototype.isReservedWord = function isReservedWord (word) { return this.reservedWords.test(word) };
+
+Parser.prototype.extend = function extend (name, f) {
+ this[name] = f(this[name]);
+};
+
+Parser.prototype.loadPlugins = function loadPlugins (pluginConfigs) {
+ var this$1 = this;
+
+ for (var name in pluginConfigs) {
+ var plugin = plugins[name];
+ if (!plugin) { throw new Error("Plugin '" + name + "' not found") }
+ plugin(this$1, pluginConfigs[name]);
+ }
+};
+
+Parser.prototype.parse = function parse () {
+ var node = this.options.program || this.startNode();
+ this.nextToken();
+ return this.parseTopLevel(node)
+};
+
+var pp = Parser.prototype;
+
+// ## Parser utilities
+
+var literal = /^(?:'((?:\\.|[^'])*?)'|"((?:\\.|[^"])*?)"|;)/;
+pp.strictDirective = function(start) {
+ var this$1 = this;
+
+ for (;;) {
+ skipWhiteSpace.lastIndex = start;
+ start += skipWhiteSpace.exec(this$1.input)[0].length;
+ var match = literal.exec(this$1.input.slice(start));
+ if (!match) { return false }
+ if ((match[1] || match[2]) == "use strict") { return true }
+ start += match[0].length;
+ }
+};
+
+// Predicate that tests whether the next token is of the given
+// type, and if yes, consumes it as a side effect.
+
+pp.eat = function(type) {
+ if (this.type === type) {
+ this.next();
+ return true
+ } else {
+ return false
+ }
+};
+
+// Tests whether parsed token is a contextual keyword.
+
+pp.isContextual = function(name) {
+ return this.type === types.name && this.value === name
+};
+
+// Consumes contextual keyword if possible.
+
+pp.eatContextual = function(name) {
+ return this.value === name && this.eat(types.name)
+};
+
+// Asserts that following token is given contextual keyword.
+
+pp.expectContextual = function(name) {
+ if (!this.eatContextual(name)) { this.unexpected(); }
+};
+
+// Test whether a semicolon can be inserted at the current position.
+
+pp.canInsertSemicolon = function() {
+ return this.type === types.eof ||
+ this.type === types.braceR ||
+ lineBreak.test(this.input.slice(this.lastTokEnd, this.start))
+};
+
+pp.insertSemicolon = function() {
+ if (this.canInsertSemicolon()) {
+ if (this.options.onInsertedSemicolon)
+ { this.options.onInsertedSemicolon(this.lastTokEnd, this.lastTokEndLoc); }
+ return true
+ }
+};
+
+// Consume a semicolon, or, failing that, see if we are allowed to
+// pretend that there is a semicolon at this position.
+
+pp.semicolon = function() {
+ if (!this.eat(types.semi) && !this.insertSemicolon()) { this.unexpected(); }
+};
+
+pp.afterTrailingComma = function(tokType, notNext) {
+ if (this.type == tokType) {
+ if (this.options.onTrailingComma)
+ { this.options.onTrailingComma(this.lastTokStart, this.lastTokStartLoc); }
+ if (!notNext)
+ { this.next(); }
+ return true
+ }
+};
+
+// Expect a token of a given type. If found, consume it, otherwise,
+// raise an unexpected token error.
+
+pp.expect = function(type) {
+ this.eat(type) || this.unexpected();
+};
+
+// Raise an unexpected token error.
+
+pp.unexpected = function(pos) {
+ this.raise(pos != null ? pos : this.start, "Unexpected token");
+};
+
+function DestructuringErrors() {
+ this.shorthandAssign =
+ this.trailingComma =
+ this.parenthesizedAssign =
+ this.parenthesizedBind =
+ -1;
+}
+
+pp.checkPatternErrors = function(refDestructuringErrors, isAssign) {
+ if (!refDestructuringErrors) { return }
+ if (refDestructuringErrors.trailingComma > -1)
+ { this.raiseRecoverable(refDestructuringErrors.trailingComma, "Comma is not permitted after the rest element"); }
+ var parens = isAssign ? refDestructuringErrors.parenthesizedAssign : refDestructuringErrors.parenthesizedBind;
+ if (parens > -1) { this.raiseRecoverable(parens, "Parenthesized pattern"); }
+};
+
+pp.checkExpressionErrors = function(refDestructuringErrors, andThrow) {
+ var pos = refDestructuringErrors ? refDestructuringErrors.shorthandAssign : -1;
+ if (!andThrow) { return pos >= 0 }
+ if (pos > -1) { this.raise(pos, "Shorthand property assignments are valid only in destructuring patterns"); }
+};
+
+pp.checkYieldAwaitInDefaultParams = function() {
+ if (this.yieldPos && (!this.awaitPos || this.yieldPos < this.awaitPos))
+ { this.raise(this.yieldPos, "Yield expression cannot be a default value"); }
+ if (this.awaitPos)
+ { this.raise(this.awaitPos, "Await expression cannot be a default value"); }
+};
+
+pp.isSimpleAssignTarget = function(expr) {
+ if (expr.type === "ParenthesizedExpression")
+ { return this.isSimpleAssignTarget(expr.expression) }
+ return expr.type === "Identifier" || expr.type === "MemberExpression"
+};
+
+var pp$1 = Parser.prototype;
+
+// ### Statement parsing
+
+// Parse a program. Initializes the parser, reads any number of
+// statements, and wraps them in a Program node. Optionally takes a
+// `program` argument. If present, the statements will be appended
+// to its body instead of creating a new node.
+
+pp$1.parseTopLevel = function(node) {
+ var this$1 = this;
+
+ var exports = {};
+ if (!node.body) { node.body = []; }
+ while (this.type !== types.eof) {
+ var stmt = this$1.parseStatement(true, true, exports);
+ node.body.push(stmt);
+ }
+ this.next();
+ if (this.options.ecmaVersion >= 6) {
+ node.sourceType = this.options.sourceType;
+ }
+ return this.finishNode(node, "Program")
+};
+
+var loopLabel = {kind: "loop"};
+var switchLabel = {kind: "switch"};
+
+pp$1.isLet = function() {
+ if (this.type !== types.name || this.options.ecmaVersion < 6 || this.value != "let") { return false }
+ skipWhiteSpace.lastIndex = this.pos;
+ var skip = skipWhiteSpace.exec(this.input);
+ var next = this.pos + skip[0].length, nextCh = this.input.charCodeAt(next);
+ if (nextCh === 91 || nextCh == 123) { return true } // '{' and '['
+ if (isIdentifierStart(nextCh, true)) {
+ var pos = next + 1;
+ while (isIdentifierChar(this.input.charCodeAt(pos), true)) { ++pos; }
+ var ident = this.input.slice(next, pos);
+ if (!this.isKeyword(ident)) { return true }
+ }
+ return false
+};
+
+// check 'async [no LineTerminator here] function'
+// - 'async /*foo*/ function' is OK.
+// - 'async /*\n*/ function' is invalid.
+pp$1.isAsyncFunction = function() {
+ if (this.type !== types.name || this.options.ecmaVersion < 8 || this.value != "async")
+ { return false }
+
+ skipWhiteSpace.lastIndex = this.pos;
+ var skip = skipWhiteSpace.exec(this.input);
+ var next = this.pos + skip[0].length;
+ return !lineBreak.test(this.input.slice(this.pos, next)) &&
+ this.input.slice(next, next + 8) === "function" &&
+ (next + 8 == this.input.length || !isIdentifierChar(this.input.charAt(next + 8)))
+};
+
+// Parse a single statement.
+//
+// If expecting a statement and finding a slash operator, parse a
+// regular expression literal. This is to handle cases like
+// `if (foo) /blah/.exec(foo)`, where looking at the previous token
+// does not help.
+
+pp$1.parseStatement = function(declaration, topLevel, exports) {
+ var starttype = this.type, node = this.startNode(), kind;
+
+ if (this.isLet()) {
+ starttype = types._var;
+ kind = "let";
+ }
+
+ // Most types of statements are recognized by the keyword they
+ // start with. Many are trivial to parse, some require a bit of
+ // complexity.
+
+ switch (starttype) {
+ case types._break: case types._continue: return this.parseBreakContinueStatement(node, starttype.keyword)
+ case types._debugger: return this.parseDebuggerStatement(node)
+ case types._do: return this.parseDoStatement(node)
+ case types._for: return this.parseForStatement(node)
+ case types._function:
+ if (!declaration && this.options.ecmaVersion >= 6) { this.unexpected(); }
+ return this.parseFunctionStatement(node, false)
+ case types._class:
+ if (!declaration) { this.unexpected(); }
+ return this.parseClass(node, true)
+ case types._if: return this.parseIfStatement(node)
+ case types._return: return this.parseReturnStatement(node)
+ case types._switch: return this.parseSwitchStatement(node)
+ case types._throw: return this.parseThrowStatement(node)
+ case types._try: return this.parseTryStatement(node)
+ case types._const: case types._var:
+ kind = kind || this.value;
+ if (!declaration && kind != "var") { this.unexpected(); }
+ return this.parseVarStatement(node, kind)
+ case types._while: return this.parseWhileStatement(node)
+ case types._with: return this.parseWithStatement(node)
+ case types.braceL: return this.parseBlock()
+ case types.semi: return this.parseEmptyStatement(node)
+ case types._export:
+ case types._import:
+ if (!this.options.allowImportExportEverywhere) {
+ if (!topLevel)
+ { this.raise(this.start, "'import' and 'export' may only appear at the top level"); }
+ if (!this.inModule)
+ { this.raise(this.start, "'import' and 'export' may appear only with 'sourceType: module'"); }
+ }
+ return starttype === types._import ? this.parseImport(node) : this.parseExport(node, exports)
+
+ // If the statement does not start with a statement keyword or a
+ // brace, it's an ExpressionStatement or LabeledStatement. We
+ // simply start parsing an expression, and afterwards, if the
+ // next token is a colon and the expression was a simple
+ // Identifier node, we switch to interpreting it as a label.
+ default:
+ if (this.isAsyncFunction() && declaration) {
+ this.next();
+ return this.parseFunctionStatement(node, true)
+ }
+
+ var maybeName = this.value, expr = this.parseExpression();
+ if (starttype === types.name && expr.type === "Identifier" && this.eat(types.colon))
+ { return this.parseLabeledStatement(node, maybeName, expr) }
+ else { return this.parseExpressionStatement(node, expr) }
+ }
+};
+
+pp$1.parseBreakContinueStatement = function(node, keyword) {
+ var this$1 = this;
+
+ var isBreak = keyword == "break";
+ this.next();
+ if (this.eat(types.semi) || this.insertSemicolon()) { node.label = null; }
+ else if (this.type !== types.name) { this.unexpected(); }
+ else {
+ node.label = this.parseIdent();
+ this.semicolon();
+ }
+
+ // Verify that there is an actual destination to break or
+ // continue to.
+ var i = 0;
+ for (; i < this.labels.length; ++i) {
+ var lab = this$1.labels[i];
+ if (node.label == null || lab.name === node.label.name) {
+ if (lab.kind != null && (isBreak || lab.kind === "loop")) { break }
+ if (node.label && isBreak) { break }
+ }
+ }
+ if (i === this.labels.length) { this.raise(node.start, "Unsyntactic " + keyword); }
+ return this.finishNode(node, isBreak ? "BreakStatement" : "ContinueStatement")
+};
+
+pp$1.parseDebuggerStatement = function(node) {
+ this.next();
+ this.semicolon();
+ return this.finishNode(node, "DebuggerStatement")
+};
+
+pp$1.parseDoStatement = function(node) {
+ this.next();
+ this.labels.push(loopLabel);
+ node.body = this.parseStatement(false);
+ this.labels.pop();
+ this.expect(types._while);
+ node.test = this.parseParenExpression();
+ if (this.options.ecmaVersion >= 6)
+ { this.eat(types.semi); }
+ else
+ { this.semicolon(); }
+ return this.finishNode(node, "DoWhileStatement")
+};
+
+// Disambiguating between a `for` and a `for`/`in` or `for`/`of`
+// loop is non-trivial. Basically, we have to parse the init `var`
+// statement or expression, disallowing the `in` operator (see
+// the second parameter to `parseExpression`), and then check
+// whether the next token is `in` or `of`. When there is no init
+// part (semicolon immediately after the opening parenthesis), it
+// is a regular `for` loop.
+
+pp$1.parseForStatement = function(node) {
+ this.next();
+ this.labels.push(loopLabel);
+ this.enterLexicalScope();
+ this.expect(types.parenL);
+ if (this.type === types.semi) { return this.parseFor(node, null) }
+ var isLet = this.isLet();
+ if (this.type === types._var || this.type === types._const || isLet) {
+ var init$1 = this.startNode(), kind = isLet ? "let" : this.value;
+ this.next();
+ this.parseVar(init$1, true, kind);
+ this.finishNode(init$1, "VariableDeclaration");
+ if ((this.type === types._in || (this.options.ecmaVersion >= 6 && this.isContextual("of"))) && init$1.declarations.length === 1 &&
+ !(kind !== "var" && init$1.declarations[0].init))
+ { return this.parseForIn(node, init$1) }
+ return this.parseFor(node, init$1)
+ }
+ var refDestructuringErrors = new DestructuringErrors;
+ var init = this.parseExpression(true, refDestructuringErrors);
+ if (this.type === types._in || (this.options.ecmaVersion >= 6 && this.isContextual("of"))) {
+ this.toAssignable(init);
+ this.checkLVal(init);
+ this.checkPatternErrors(refDestructuringErrors, true);
+ return this.parseForIn(node, init)
+ } else {
+ this.checkExpressionErrors(refDestructuringErrors, true);
+ }
+ return this.parseFor(node, init)
+};
+
+pp$1.parseFunctionStatement = function(node, isAsync) {
+ this.next();
+ return this.parseFunction(node, true, false, isAsync)
+};
+
+pp$1.isFunction = function() {
+ return this.type === types._function || this.isAsyncFunction()
+};
+
+pp$1.parseIfStatement = function(node) {
+ this.next();
+ node.test = this.parseParenExpression();
+ // allow function declarations in branches, but only in non-strict mode
+ node.consequent = this.parseStatement(!this.strict && this.isFunction());
+ node.alternate = this.eat(types._else) ? this.parseStatement(!this.strict && this.isFunction()) : null;
+ return this.finishNode(node, "IfStatement")
+};
+
+pp$1.parseReturnStatement = function(node) {
+ if (!this.inFunction && !this.options.allowReturnOutsideFunction)
+ { this.raise(this.start, "'return' outside of function"); }
+ this.next();
+
+ // In `return` (and `break`/`continue`), the keywords with
+ // optional arguments, we eagerly look for a semicolon or the
+ // possibility to insert one.
+
+ if (this.eat(types.semi) || this.insertSemicolon()) { node.argument = null; }
+ else { node.argument = this.parseExpression(); this.semicolon(); }
+ return this.finishNode(node, "ReturnStatement")
+};
+
+pp$1.parseSwitchStatement = function(node) {
+ var this$1 = this;
+
+ this.next();
+ node.discriminant = this.parseParenExpression();
+ node.cases = [];
+ this.expect(types.braceL);
+ this.labels.push(switchLabel);
+ this.enterLexicalScope();
+
+ // Statements under must be grouped (by label) in SwitchCase
+ // nodes. `cur` is used to keep the node that we are currently
+ // adding statements to.
+
+ var cur;
+ for (var sawDefault = false; this.type != types.braceR;) {
+ if (this$1.type === types._case || this$1.type === types._default) {
+ var isCase = this$1.type === types._case;
+ if (cur) { this$1.finishNode(cur, "SwitchCase"); }
+ node.cases.push(cur = this$1.startNode());
+ cur.consequent = [];
+ this$1.next();
+ if (isCase) {
+ cur.test = this$1.parseExpression();
+ } else {
+ if (sawDefault) { this$1.raiseRecoverable(this$1.lastTokStart, "Multiple default clauses"); }
+ sawDefault = true;
+ cur.test = null;
+ }
+ this$1.expect(types.colon);
+ } else {
+ if (!cur) { this$1.unexpected(); }
+ cur.consequent.push(this$1.parseStatement(true));
+ }
+ }
+ this.exitLexicalScope();
+ if (cur) { this.finishNode(cur, "SwitchCase"); }
+ this.next(); // Closing brace
+ this.labels.pop();
+ return this.finishNode(node, "SwitchStatement")
+};
+
+pp$1.parseThrowStatement = function(node) {
+ this.next();
+ if (lineBreak.test(this.input.slice(this.lastTokEnd, this.start)))
+ { this.raise(this.lastTokEnd, "Illegal newline after throw"); }
+ node.argument = this.parseExpression();
+ this.semicolon();
+ return this.finishNode(node, "ThrowStatement")
+};
+
+// Reused empty array added for node fields that are always empty.
+
+var empty = [];
+
+pp$1.parseTryStatement = function(node) {
+ this.next();
+ node.block = this.parseBlock();
+ node.handler = null;
+ if (this.type === types._catch) {
+ var clause = this.startNode();
+ this.next();
+ this.expect(types.parenL);
+ clause.param = this.parseBindingAtom();
+ this.enterLexicalScope();
+ this.checkLVal(clause.param, "let");
+ this.expect(types.parenR);
+ clause.body = this.parseBlock(false);
+ this.exitLexicalScope();
+ node.handler = this.finishNode(clause, "CatchClause");
+ }
+ node.finalizer = this.eat(types._finally) ? this.parseBlock() : null;
+ if (!node.handler && !node.finalizer)
+ { this.raise(node.start, "Missing catch or finally clause"); }
+ return this.finishNode(node, "TryStatement")
+};
+
+pp$1.parseVarStatement = function(node, kind) {
+ this.next();
+ this.parseVar(node, false, kind);
+ this.semicolon();
+ return this.finishNode(node, "VariableDeclaration")
+};
+
+pp$1.parseWhileStatement = function(node) {
+ this.next();
+ node.test = this.parseParenExpression();
+ this.labels.push(loopLabel);
+ node.body = this.parseStatement(false);
+ this.labels.pop();
+ return this.finishNode(node, "WhileStatement")
+};
+
+pp$1.parseWithStatement = function(node) {
+ if (this.strict) { this.raise(this.start, "'with' in strict mode"); }
+ this.next();
+ node.object = this.parseParenExpression();
+ node.body = this.parseStatement(false);
+ return this.finishNode(node, "WithStatement")
+};
+
+pp$1.parseEmptyStatement = function(node) {
+ this.next();
+ return this.finishNode(node, "EmptyStatement")
+};
+
+pp$1.parseLabeledStatement = function(node, maybeName, expr) {
+ var this$1 = this;
+
+ for (var i$1 = 0, list = this$1.labels; i$1 < list.length; i$1 += 1)
+ {
+ var label = list[i$1];
+
+ if (label.name === maybeName)
+ { this$1.raise(expr.start, "Label '" + maybeName + "' is already declared");
+ } }
+ var kind = this.type.isLoop ? "loop" : this.type === types._switch ? "switch" : null;
+ for (var i = this.labels.length - 1; i >= 0; i--) {
+ var label$1 = this$1.labels[i];
+ if (label$1.statementStart == node.start) {
+ label$1.statementStart = this$1.start;
+ label$1.kind = kind;
+ } else { break }
+ }
+ this.labels.push({name: maybeName, kind: kind, statementStart: this.start});
+ node.body = this.parseStatement(true);
+ if (node.body.type == "ClassDeclaration" ||
+ node.body.type == "VariableDeclaration" && node.body.kind != "var" ||
+ node.body.type == "FunctionDeclaration" && (this.strict || node.body.generator))
+ { this.raiseRecoverable(node.body.start, "Invalid labeled declaration"); }
+ this.labels.pop();
+ node.label = expr;
+ return this.finishNode(node, "LabeledStatement")
+};
+
+pp$1.parseExpressionStatement = function(node, expr) {
+ node.expression = expr;
+ this.semicolon();
+ return this.finishNode(node, "ExpressionStatement")
+};
+
+// Parse a semicolon-enclosed block of statements, handling `"use
+// strict"` declarations when `allowStrict` is true (used for
+// function bodies).
+
+pp$1.parseBlock = function(createNewLexicalScope) {
+ var this$1 = this;
+ if ( createNewLexicalScope === void 0 ) createNewLexicalScope = true;
+
+ var node = this.startNode();
+ node.body = [];
+ this.expect(types.braceL);
+ if (createNewLexicalScope) {
+ this.enterLexicalScope();
+ }
+ while (!this.eat(types.braceR)) {
+ var stmt = this$1.parseStatement(true);
+ node.body.push(stmt);
+ }
+ if (createNewLexicalScope) {
+ this.exitLexicalScope();
+ }
+ return this.finishNode(node, "BlockStatement")
+};
+
+// Parse a regular `for` loop. The disambiguation code in
+// `parseStatement` will already have parsed the init statement or
+// expression.
+
+pp$1.parseFor = function(node, init) {
+ node.init = init;
+ this.expect(types.semi);
+ node.test = this.type === types.semi ? null : this.parseExpression();
+ this.expect(types.semi);
+ node.update = this.type === types.parenR ? null : this.parseExpression();
+ this.expect(types.parenR);
+ this.exitLexicalScope();
+ node.body = this.parseStatement(false);
+ this.labels.pop();
+ return this.finishNode(node, "ForStatement")
+};
+
+// Parse a `for`/`in` and `for`/`of` loop, which are almost
+// same from parser's perspective.
+
+pp$1.parseForIn = function(node, init) {
+ var type = this.type === types._in ? "ForInStatement" : "ForOfStatement";
+ this.next();
+ node.left = init;
+ node.right = this.parseExpression();
+ this.expect(types.parenR);
+ this.exitLexicalScope();
+ node.body = this.parseStatement(false);
+ this.labels.pop();
+ return this.finishNode(node, type)
+};
+
+// Parse a list of variable declarations.
+
+pp$1.parseVar = function(node, isFor, kind) {
+ var this$1 = this;
+
+ node.declarations = [];
+ node.kind = kind;
+ for (;;) {
+ var decl = this$1.startNode();
+ this$1.parseVarId(decl, kind);
+ if (this$1.eat(types.eq)) {
+ decl.init = this$1.parseMaybeAssign(isFor);
+ } else if (kind === "const" && !(this$1.type === types._in || (this$1.options.ecmaVersion >= 6 && this$1.isContextual("of")))) {
+ this$1.unexpected();
+ } else if (decl.id.type != "Identifier" && !(isFor && (this$1.type === types._in || this$1.isContextual("of")))) {
+ this$1.raise(this$1.lastTokEnd, "Complex binding patterns require an initialization value");
+ } else {
+ decl.init = null;
+ }
+ node.declarations.push(this$1.finishNode(decl, "VariableDeclarator"));
+ if (!this$1.eat(types.comma)) { break }
+ }
+ return node
+};
+
+pp$1.parseVarId = function(decl, kind) {
+ decl.id = this.parseBindingAtom(kind);
+ this.checkLVal(decl.id, kind, false);
+};
+
+// Parse a function declaration or literal (depending on the
+// `isStatement` parameter).
+
+pp$1.parseFunction = function(node, isStatement, allowExpressionBody, isAsync) {
+ this.initFunction(node);
+ if (this.options.ecmaVersion >= 6 && !isAsync)
+ { node.generator = this.eat(types.star); }
+ if (this.options.ecmaVersion >= 8)
+ { node.async = !!isAsync; }
+
+ if (isStatement) {
+ node.id = isStatement === "nullableID" && this.type != types.name ? null : this.parseIdent();
+ if (node.id) {
+ this.checkLVal(node.id, "var");
+ }
+ }
+
+ var oldInGen = this.inGenerator, oldInAsync = this.inAsync,
+ oldYieldPos = this.yieldPos, oldAwaitPos = this.awaitPos, oldInFunc = this.inFunction;
+ this.inGenerator = node.generator;
+ this.inAsync = node.async;
+ this.yieldPos = 0;
+ this.awaitPos = 0;
+ this.inFunction = true;
+ this.enterFunctionScope();
+
+ if (!isStatement)
+ { node.id = this.type == types.name ? this.parseIdent() : null; }
+
+ this.parseFunctionParams(node);
+ this.parseFunctionBody(node, allowExpressionBody);
+
+ this.inGenerator = oldInGen;
+ this.inAsync = oldInAsync;
+ this.yieldPos = oldYieldPos;
+ this.awaitPos = oldAwaitPos;
+ this.inFunction = oldInFunc;
+ return this.finishNode(node, isStatement ? "FunctionDeclaration" : "FunctionExpression")
+};
+
+pp$1.parseFunctionParams = function(node) {
+ this.expect(types.parenL);
+ node.params = this.parseBindingList(types.parenR, false, this.options.ecmaVersion >= 8);
+ this.checkYieldAwaitInDefaultParams();
+};
+
+// Parse a class declaration or literal (depending on the
+// `isStatement` parameter).
+
+pp$1.parseClass = function(node, isStatement) {
+ var this$1 = this;
+
+ this.next();
+
+ this.parseClassId(node, isStatement);
+ this.parseClassSuper(node);
+ var classBody = this.startNode();
+ var hadConstructor = false;
+ classBody.body = [];
+ this.expect(types.braceL);
+ while (!this.eat(types.braceR)) {
+ if (this$1.eat(types.semi)) { continue }
+ var method = this$1.startNode();
+ var isGenerator = this$1.eat(types.star);
+ var isAsync = false;
+ var isMaybeStatic = this$1.type === types.name && this$1.value === "static";
+ this$1.parsePropertyName(method);
+ method.static = isMaybeStatic && this$1.type !== types.parenL;
+ if (method.static) {
+ if (isGenerator) { this$1.unexpected(); }
+ isGenerator = this$1.eat(types.star);
+ this$1.parsePropertyName(method);
+ }
+ if (this$1.options.ecmaVersion >= 8 && !isGenerator && !method.computed &&
+ method.key.type === "Identifier" && method.key.name === "async" && this$1.type !== types.parenL &&
+ !this$1.canInsertSemicolon()) {
+ isAsync = true;
+ this$1.parsePropertyName(method);
+ }
+ method.kind = "method";
+ var isGetSet = false;
+ if (!method.computed) {
+ var key = method.key;
+ if (!isGenerator && !isAsync && key.type === "Identifier" && this$1.type !== types.parenL && (key.name === "get" || key.name === "set")) {
+ isGetSet = true;
+ method.kind = key.name;
+ key = this$1.parsePropertyName(method);
+ }
+ if (!method.static && (key.type === "Identifier" && key.name === "constructor" ||
+ key.type === "Literal" && key.value === "constructor")) {
+ if (hadConstructor) { this$1.raise(key.start, "Duplicate constructor in the same class"); }
+ if (isGetSet) { this$1.raise(key.start, "Constructor can't have get/set modifier"); }
+ if (isGenerator) { this$1.raise(key.start, "Constructor can't be a generator"); }
+ if (isAsync) { this$1.raise(key.start, "Constructor can't be an async method"); }
+ method.kind = "constructor";
+ hadConstructor = true;
+ }
+ }
+ this$1.parseClassMethod(classBody, method, isGenerator, isAsync);
+ if (isGetSet) {
+ var paramCount = method.kind === "get" ? 0 : 1;
+ if (method.value.params.length !== paramCount) {
+ var start = method.value.start;
+ if (method.kind === "get")
+ { this$1.raiseRecoverable(start, "getter should have no params"); }
+ else
+ { this$1.raiseRecoverable(start, "setter should have exactly one param"); }
+ } else {
+ if (method.kind === "set" && method.value.params[0].type === "RestElement")
+ { this$1.raiseRecoverable(method.value.params[0].start, "Setter cannot use rest params"); }
+ }
+ }
+ }
+ node.body = this.finishNode(classBody, "ClassBody");
+ return this.finishNode(node, isStatement ? "ClassDeclaration" : "ClassExpression")
+};
+
+pp$1.parseClassMethod = function(classBody, method, isGenerator, isAsync) {
+ method.value = this.parseMethod(isGenerator, isAsync);
+ classBody.body.push(this.finishNode(method, "MethodDefinition"));
+};
+
+pp$1.parseClassId = function(node, isStatement) {
+ node.id = this.type === types.name ? this.parseIdent() : isStatement === true ? this.unexpected() : null;
+};
+
+pp$1.parseClassSuper = function(node) {
+ node.superClass = this.eat(types._extends) ? this.parseExprSubscripts() : null;
+};
+
+// Parses module export declaration.
+
+pp$1.parseExport = function(node, exports) {
+ var this$1 = this;
+
+ this.next();
+ // export * from '...'
+ if (this.eat(types.star)) {
+ this.expectContextual("from");
+ node.source = this.type === types.string ? this.parseExprAtom() : this.unexpected();
+ this.semicolon();
+ return this.finishNode(node, "ExportAllDeclaration")
+ }
+ if (this.eat(types._default)) { // export default ...
+ this.checkExport(exports, "default", this.lastTokStart);
+ var isAsync;
+ if (this.type === types._function || (isAsync = this.isAsyncFunction())) {
+ var fNode = this.startNode();
+ this.next();
+ if (isAsync) { this.next(); }
+ node.declaration = this.parseFunction(fNode, "nullableID", false, isAsync);
+ } else if (this.type === types._class) {
+ var cNode = this.startNode();
+ node.declaration = this.parseClass(cNode, "nullableID");
+ } else {
+ node.declaration = this.parseMaybeAssign();
+ this.semicolon();
+ }
+ return this.finishNode(node, "ExportDefaultDeclaration")
+ }
+ // export var|const|let|function|class ...
+ if (this.shouldParseExportStatement()) {
+ node.declaration = this.parseStatement(true);
+ if (node.declaration.type === "VariableDeclaration")
+ { this.checkVariableExport(exports, node.declaration.declarations); }
+ else
+ { this.checkExport(exports, node.declaration.id.name, node.declaration.id.start); }
+ node.specifiers = [];
+ node.source = null;
+ } else { // export { x, y as z } [from '...']
+ node.declaration = null;
+ node.specifiers = this.parseExportSpecifiers(exports);
+ if (this.eatContextual("from")) {
+ node.source = this.type === types.string ? this.parseExprAtom() : this.unexpected();
+ } else {
+ // check for keywords used as local names
+ for (var i = 0, list = node.specifiers; i < list.length; i += 1) {
+ var spec = list[i];
+
+ this$1.checkUnreserved(spec.local);
+ }
+
+ node.source = null;
+ }
+ this.semicolon();
+ }
+ return this.finishNode(node, "ExportNamedDeclaration")
+};
+
+pp$1.checkExport = function(exports, name, pos) {
+ if (!exports) { return }
+ if (has(exports, name))
+ { this.raiseRecoverable(pos, "Duplicate export '" + name + "'"); }
+ exports[name] = true;
+};
+
+pp$1.checkPatternExport = function(exports, pat) {
+ var this$1 = this;
+
+ var type = pat.type;
+ if (type == "Identifier")
+ { this.checkExport(exports, pat.name, pat.start); }
+ else if (type == "ObjectPattern")
+ { for (var i = 0, list = pat.properties; i < list.length; i += 1)
+ {
+ var prop = list[i];
+
+ this$1.checkPatternExport(exports, prop.value);
+ } }
+ else if (type == "ArrayPattern")
+ { for (var i$1 = 0, list$1 = pat.elements; i$1 < list$1.length; i$1 += 1) {
+ var elt = list$1[i$1];
+
+ if (elt) { this$1.checkPatternExport(exports, elt); }
+ } }
+ else if (type == "AssignmentPattern")
+ { this.checkPatternExport(exports, pat.left); }
+ else if (type == "ParenthesizedExpression")
+ { this.checkPatternExport(exports, pat.expression); }
+};
+
+pp$1.checkVariableExport = function(exports, decls) {
+ var this$1 = this;
+
+ if (!exports) { return }
+ for (var i = 0, list = decls; i < list.length; i += 1)
+ {
+ var decl = list[i];
+
+ this$1.checkPatternExport(exports, decl.id);
+ }
+};
+
+pp$1.shouldParseExportStatement = function() {
+ return this.type.keyword === "var" ||
+ this.type.keyword === "const" ||
+ this.type.keyword === "class" ||
+ this.type.keyword === "function" ||
+ this.isLet() ||
+ this.isAsyncFunction()
+};
+
+// Parses a comma-separated list of module exports.
+
+pp$1.parseExportSpecifiers = function(exports) {
+ var this$1 = this;
+
+ var nodes = [], first = true;
+ // export { x, y as z } [from '...']
+ this.expect(types.braceL);
+ while (!this.eat(types.braceR)) {
+ if (!first) {
+ this$1.expect(types.comma);
+ if (this$1.afterTrailingComma(types.braceR)) { break }
+ } else { first = false; }
+
+ var node = this$1.startNode();
+ node.local = this$1.parseIdent(true);
+ node.exported = this$1.eatContextual("as") ? this$1.parseIdent(true) : node.local;
+ this$1.checkExport(exports, node.exported.name, node.exported.start);
+ nodes.push(this$1.finishNode(node, "ExportSpecifier"));
+ }
+ return nodes
+};
+
+// Parses import declaration.
+
+pp$1.parseImport = function(node) {
+ this.next();
+ // import '...'
+ if (this.type === types.string) {
+ node.specifiers = empty;
+ node.source = this.parseExprAtom();
+ } else {
+ node.specifiers = this.parseImportSpecifiers();
+ this.expectContextual("from");
+ node.source = this.type === types.string ? this.parseExprAtom() : this.unexpected();
+ }
+ this.semicolon();
+ return this.finishNode(node, "ImportDeclaration")
+};
+
+// Parses a comma-separated list of module imports.
+
+pp$1.parseImportSpecifiers = function() {
+ var this$1 = this;
+
+ var nodes = [], first = true;
+ if (this.type === types.name) {
+ // import defaultObj, { x, y as z } from '...'
+ var node = this.startNode();
+ node.local = this.parseIdent();
+ this.checkLVal(node.local, "let");
+ nodes.push(this.finishNode(node, "ImportDefaultSpecifier"));
+ if (!this.eat(types.comma)) { return nodes }
+ }
+ if (this.type === types.star) {
+ var node$1 = this.startNode();
+ this.next();
+ this.expectContextual("as");
+ node$1.local = this.parseIdent();
+ this.checkLVal(node$1.local, "let");
+ nodes.push(this.finishNode(node$1, "ImportNamespaceSpecifier"));
+ return nodes
+ }
+ this.expect(types.braceL);
+ while (!this.eat(types.braceR)) {
+ if (!first) {
+ this$1.expect(types.comma);
+ if (this$1.afterTrailingComma(types.braceR)) { break }
+ } else { first = false; }
+
+ var node$2 = this$1.startNode();
+ node$2.imported = this$1.parseIdent(true);
+ if (this$1.eatContextual("as")) {
+ node$2.local = this$1.parseIdent();
+ } else {
+ this$1.checkUnreserved(node$2.imported);
+ node$2.local = node$2.imported;
+ }
+ this$1.checkLVal(node$2.local, "let");
+ nodes.push(this$1.finishNode(node$2, "ImportSpecifier"));
+ }
+ return nodes
+};
+
+var pp$2 = Parser.prototype;
+
+// Convert existing expression atom to assignable pattern
+// if possible.
+
+pp$2.toAssignable = function(node, isBinding) {
+ var this$1 = this;
+
+ if (this.options.ecmaVersion >= 6 && node) {
+ switch (node.type) {
+ case "Identifier":
+ if (this.inAsync && node.name === "await")
+ { this.raise(node.start, "Can not use 'await' as identifier inside an async function"); }
+ break
+
+ case "ObjectPattern":
+ case "ArrayPattern":
+ break
+
+ case "ObjectExpression":
+ node.type = "ObjectPattern";
+ for (var i = 0, list = node.properties; i < list.length; i += 1) {
+ var prop = list[i];
+
+ if (prop.kind !== "init") { this$1.raise(prop.key.start, "Object pattern can't contain getter or setter"); }
+ this$1.toAssignable(prop.value, isBinding);
+ }
+ break
+
+ case "ArrayExpression":
+ node.type = "ArrayPattern";
+ this.toAssignableList(node.elements, isBinding);
+ break
+
+ case "AssignmentExpression":
+ if (node.operator === "=") {
+ node.type = "AssignmentPattern";
+ delete node.operator;
+ this.toAssignable(node.left, isBinding);
+ // falls through to AssignmentPattern
+ } else {
+ this.raise(node.left.end, "Only '=' operator can be used for specifying default value.");
+ break
+ }
+
+ case "AssignmentPattern":
+ break
+
+ case "ParenthesizedExpression":
+ this.toAssignable(node.expression, isBinding);
+ break
+
+ case "MemberExpression":
+ if (!isBinding) { break }
+
+ default:
+ this.raise(node.start, "Assigning to rvalue");
+ }
+ }
+ return node
+};
+
+// Convert list of expression atoms to binding list.
+
+pp$2.toAssignableList = function(exprList, isBinding) {
+ var this$1 = this;
+
+ var end = exprList.length;
+ if (end) {
+ var last = exprList[end - 1];
+ if (last && last.type == "RestElement") {
+ --end;
+ } else if (last && last.type == "SpreadElement") {
+ last.type = "RestElement";
+ var arg = last.argument;
+ this.toAssignable(arg, isBinding);
+ --end;
+ }
+
+ if (this.options.ecmaVersion === 6 && isBinding && last && last.type === "RestElement" && last.argument.type !== "Identifier")
+ { this.unexpected(last.argument.start); }
+ }
+ for (var i = 0; i < end; i++) {
+ var elt = exprList[i];
+ if (elt) { this$1.toAssignable(elt, isBinding); }
+ }
+ return exprList
+};
+
+// Parses spread element.
+
+pp$2.parseSpread = function(refDestructuringErrors) {
+ var node = this.startNode();
+ this.next();
+ node.argument = this.parseMaybeAssign(false, refDestructuringErrors);
+ return this.finishNode(node, "SpreadElement")
+};
+
+pp$2.parseRestBinding = function() {
+ var node = this.startNode();
+ this.next();
+
+ // RestElement inside of a function parameter must be an identifier
+ if (this.options.ecmaVersion === 6 && this.type !== types.name)
+ { this.unexpected(); }
+
+ node.argument = this.parseBindingAtom();
+
+ return this.finishNode(node, "RestElement")
+};
+
+// Parses lvalue (assignable) atom.
+
+pp$2.parseBindingAtom = function() {
+ if (this.options.ecmaVersion < 6) { return this.parseIdent() }
+ switch (this.type) {
+ case types.name:
+ return this.parseIdent()
+
+ case types.bracketL:
+ var node = this.startNode();
+ this.next();
+ node.elements = this.parseBindingList(types.bracketR, true, true);
+ return this.finishNode(node, "ArrayPattern")
+
+ case types.braceL:
+ return this.parseObj(true)
+
+ default:
+ this.unexpected();
+ }
+};
+
+pp$2.parseBindingList = function(close, allowEmpty, allowTrailingComma) {
+ var this$1 = this;
+
+ var elts = [], first = true;
+ while (!this.eat(close)) {
+ if (first) { first = false; }
+ else { this$1.expect(types.comma); }
+ if (allowEmpty && this$1.type === types.comma) {
+ elts.push(null);
+ } else if (allowTrailingComma && this$1.afterTrailingComma(close)) {
+ break
+ } else if (this$1.type === types.ellipsis) {
+ var rest = this$1.parseRestBinding();
+ this$1.parseBindingListItem(rest);
+ elts.push(rest);
+ if (this$1.type === types.comma) { this$1.raise(this$1.start, "Comma is not permitted after the rest element"); }
+ this$1.expect(close);
+ break
+ } else {
+ var elem = this$1.parseMaybeDefault(this$1.start, this$1.startLoc);
+ this$1.parseBindingListItem(elem);
+ elts.push(elem);
+ }
+ }
+ return elts
+};
+
+pp$2.parseBindingListItem = function(param) {
+ return param
+};
+
+// Parses assignment pattern around given atom if possible.
+
+pp$2.parseMaybeDefault = function(startPos, startLoc, left) {
+ left = left || this.parseBindingAtom();
+ if (this.options.ecmaVersion < 6 || !this.eat(types.eq)) { return left }
+ var node = this.startNodeAt(startPos, startLoc);
+ node.left = left;
+ node.right = this.parseMaybeAssign();
+ return this.finishNode(node, "AssignmentPattern")
+};
+
+// Verify that a node is an lval — something that can be assigned
+// to.
+// bindingType can be either:
+// 'var' indicating that the lval creates a 'var' binding
+// 'let' indicating that the lval creates a lexical ('let' or 'const') binding
+// 'none' indicating that the binding should be checked for illegal identifiers, but not for duplicate references
+
+pp$2.checkLVal = function(expr, bindingType, checkClashes) {
+ var this$1 = this;
+
+ switch (expr.type) {
+ case "Identifier":
+ if (this.strict && this.reservedWordsStrictBind.test(expr.name))
+ { this.raiseRecoverable(expr.start, (bindingType ? "Binding " : "Assigning to ") + expr.name + " in strict mode"); }
+ if (checkClashes) {
+ if (has(checkClashes, expr.name))
+ { this.raiseRecoverable(expr.start, "Argument name clash"); }
+ checkClashes[expr.name] = true;
+ }
+ if (bindingType && bindingType !== "none") {
+ if (
+ bindingType === "var" && !this.canDeclareVarName(expr.name) ||
+ bindingType !== "var" && !this.canDeclareLexicalName(expr.name)
+ ) {
+ this.raiseRecoverable(expr.start, ("Identifier '" + (expr.name) + "' has already been declared"));
+ }
+ if (bindingType === "var") {
+ this.declareVarName(expr.name);
+ } else {
+ this.declareLexicalName(expr.name);
+ }
+ }
+ break
+
+ case "MemberExpression":
+ if (bindingType) { this.raiseRecoverable(expr.start, (bindingType ? "Binding" : "Assigning to") + " member expression"); }
+ break
+
+ case "ObjectPattern":
+ for (var i = 0, list = expr.properties; i < list.length; i += 1)
+ {
+ var prop = list[i];
+
+ this$1.checkLVal(prop.value, bindingType, checkClashes);
+ }
+ break
+
+ case "ArrayPattern":
+ for (var i$1 = 0, list$1 = expr.elements; i$1 < list$1.length; i$1 += 1) {
+ var elem = list$1[i$1];
+
+ if (elem) { this$1.checkLVal(elem, bindingType, checkClashes); }
+ }
+ break
+
+ case "AssignmentPattern":
+ this.checkLVal(expr.left, bindingType, checkClashes);
+ break
+
+ case "RestElement":
+ this.checkLVal(expr.argument, bindingType, checkClashes);
+ break
+
+ case "ParenthesizedExpression":
+ this.checkLVal(expr.expression, bindingType, checkClashes);
+ break
+
+ default:
+ this.raise(expr.start, (bindingType ? "Binding" : "Assigning to") + " rvalue");
+ }
+};
+
+// A recursive descent parser operates by defining functions for all
+// syntactic elements, and recursively calling those, each function
+// advancing the input stream and returning an AST node. Precedence
+// of constructs (for example, the fact that `!x[1]` means `!(x[1])`
+// instead of `(!x)[1]` is handled by the fact that the parser
+// function that parses unary prefix operators is called first, and
+// in turn calls the function that parses `[]` subscripts — that
+// way, it'll receive the node for `x[1]` already parsed, and wraps
+// *that* in the unary operator node.
+//
+// Acorn uses an [operator precedence parser][opp] to handle binary
+// operator precedence, because it is much more compact than using
+// the technique outlined above, which uses different, nesting
+// functions to specify precedence, for all of the ten binary
+// precedence levels that JavaScript defines.
+//
+// [opp]: http://en.wikipedia.org/wiki/Operator-precedence_parser
+
+var pp$3 = Parser.prototype;
+
+// Check if property name clashes with already added.
+// Object/class getters and setters are not allowed to clash —
+// either with each other or with an init property — and in
+// strict mode, init properties are also not allowed to be repeated.
+
+pp$3.checkPropClash = function(prop, propHash) {
+ if (this.options.ecmaVersion >= 6 && (prop.computed || prop.method || prop.shorthand))
+ { return }
+ var key = prop.key;
+ var name;
+ switch (key.type) {
+ case "Identifier": name = key.name; break
+ case "Literal": name = String(key.value); break
+ default: return
+ }
+ var kind = prop.kind;
+ if (this.options.ecmaVersion >= 6) {
+ if (name === "__proto__" && kind === "init") {
+ if (propHash.proto) { this.raiseRecoverable(key.start, "Redefinition of __proto__ property"); }
+ propHash.proto = true;
+ }
+ return
+ }
+ name = "$" + name;
+ var other = propHash[name];
+ if (other) {
+ var redefinition;
+ if (kind === "init") {
+ redefinition = this.strict && other.init || other.get || other.set;
+ } else {
+ redefinition = other.init || other[kind];
+ }
+ if (redefinition)
+ { this.raiseRecoverable(key.start, "Redefinition of property"); }
+ } else {
+ other = propHash[name] = {
+ init: false,
+ get: false,
+ set: false
+ };
+ }
+ other[kind] = true;
+};
+
+// ### Expression parsing
+
+// These nest, from the most general expression type at the top to
+// 'atomic', nondivisible expression types at the bottom. Most of
+// the functions will simply let the function(s) below them parse,
+// and, *if* the syntactic construct they handle is present, wrap
+// the AST node that the inner parser gave them in another node.
+
+// Parse a full expression. The optional arguments are used to
+// forbid the `in` operator (in for loops initalization expressions)
+// and provide reference for storing '=' operator inside shorthand
+// property assignment in contexts where both object expression
+// and object pattern might appear (so it's possible to raise
+// delayed syntax error at correct position).
+
+pp$3.parseExpression = function(noIn, refDestructuringErrors) {
+ var this$1 = this;
+
+ var startPos = this.start, startLoc = this.startLoc;
+ var expr = this.parseMaybeAssign(noIn, refDestructuringErrors);
+ if (this.type === types.comma) {
+ var node = this.startNodeAt(startPos, startLoc);
+ node.expressions = [expr];
+ while (this.eat(types.comma)) { node.expressions.push(this$1.parseMaybeAssign(noIn, refDestructuringErrors)); }
+ return this.finishNode(node, "SequenceExpression")
+ }
+ return expr
+};
+
+// Parse an assignment expression. This includes applications of
+// operators like `+=`.
+
+pp$3.parseMaybeAssign = function(noIn, refDestructuringErrors, afterLeftParse) {
+ if (this.inGenerator && this.isContextual("yield")) { return this.parseYield() }
+
+ var ownDestructuringErrors = false, oldParenAssign = -1, oldTrailingComma = -1;
+ if (refDestructuringErrors) {
+ oldParenAssign = refDestructuringErrors.parenthesizedAssign;
+ oldTrailingComma = refDestructuringErrors.trailingComma;
+ refDestructuringErrors.parenthesizedAssign = refDestructuringErrors.trailingComma = -1;
+ } else {
+ refDestructuringErrors = new DestructuringErrors;
+ ownDestructuringErrors = true;
+ }
+
+ var startPos = this.start, startLoc = this.startLoc;
+ if (this.type == types.parenL || this.type == types.name)
+ { this.potentialArrowAt = this.start; }
+ var left = this.parseMaybeConditional(noIn, refDestructuringErrors);
+ if (afterLeftParse) { left = afterLeftParse.call(this, left, startPos, startLoc); }
+ if (this.type.isAssign) {
+ this.checkPatternErrors(refDestructuringErrors, true);
+ if (!ownDestructuringErrors) { DestructuringErrors.call(refDestructuringErrors); }
+ var node = this.startNodeAt(startPos, startLoc);
+ node.operator = this.value;
+ node.left = this.type === types.eq ? this.toAssignable(left) : left;
+ refDestructuringErrors.shorthandAssign = -1; // reset because shorthand default was used correctly
+ this.checkLVal(left);
+ this.next();
+ node.right = this.parseMaybeAssign(noIn);
+ return this.finishNode(node, "AssignmentExpression")
+ } else {
+ if (ownDestructuringErrors) { this.checkExpressionErrors(refDestructuringErrors, true); }
+ }
+ if (oldParenAssign > -1) { refDestructuringErrors.parenthesizedAssign = oldParenAssign; }
+ if (oldTrailingComma > -1) { refDestructuringErrors.trailingComma = oldTrailingComma; }
+ return left
+};
+
+// Parse a ternary conditional (`?:`) operator.
+
+pp$3.parseMaybeConditional = function(noIn, refDestructuringErrors) {
+ var startPos = this.start, startLoc = this.startLoc;
+ var expr = this.parseExprOps(noIn, refDestructuringErrors);
+ if (this.checkExpressionErrors(refDestructuringErrors)) { return expr }
+ if (this.eat(types.question)) {
+ var node = this.startNodeAt(startPos, startLoc);
+ node.test = expr;
+ node.consequent = this.parseMaybeAssign();
+ this.expect(types.colon);
+ node.alternate = this.parseMaybeAssign(noIn);
+ return this.finishNode(node, "ConditionalExpression")
+ }
+ return expr
+};
+
+// Start the precedence parser.
+
+pp$3.parseExprOps = function(noIn, refDestructuringErrors) {
+ var startPos = this.start, startLoc = this.startLoc;
+ var expr = this.parseMaybeUnary(refDestructuringErrors, false);
+ if (this.checkExpressionErrors(refDestructuringErrors)) { return expr }
+ return expr.start == startPos && expr.type === "ArrowFunctionExpression" ? expr : this.parseExprOp(expr, startPos, startLoc, -1, noIn)
+};
+
+// Parse binary operators with the operator precedence parsing
+// algorithm. `left` is the left-hand side of the operator.
+// `minPrec` provides context that allows the function to stop and
+// defer further parser to one of its callers when it encounters an
+// operator that has a lower precedence than the set it is parsing.
+
+pp$3.parseExprOp = function(left, leftStartPos, leftStartLoc, minPrec, noIn) {
+ var prec = this.type.binop;
+ if (prec != null && (!noIn || this.type !== types._in)) {
+ if (prec > minPrec) {
+ var logical = this.type === types.logicalOR || this.type === types.logicalAND;
+ var op = this.value;
+ this.next();
+ var startPos = this.start, startLoc = this.startLoc;
+ var right = this.parseExprOp(this.parseMaybeUnary(null, false), startPos, startLoc, prec, noIn);
+ var node = this.buildBinary(leftStartPos, leftStartLoc, left, right, op, logical);
+ return this.parseExprOp(node, leftStartPos, leftStartLoc, minPrec, noIn)
+ }
+ }
+ return left
+};
+
+pp$3.buildBinary = function(startPos, startLoc, left, right, op, logical) {
+ var node = this.startNodeAt(startPos, startLoc);
+ node.left = left;
+ node.operator = op;
+ node.right = right;
+ return this.finishNode(node, logical ? "LogicalExpression" : "BinaryExpression")
+};
+
+// Parse unary operators, both prefix and postfix.
+
+pp$3.parseMaybeUnary = function(refDestructuringErrors, sawUnary) {
+ var this$1 = this;
+
+ var startPos = this.start, startLoc = this.startLoc, expr;
+ if (this.inAsync && this.isContextual("await")) {
+ expr = this.parseAwait(refDestructuringErrors);
+ sawUnary = true;
+ } else if (this.type.prefix) {
+ var node = this.startNode(), update = this.type === types.incDec;
+ node.operator = this.value;
+ node.prefix = true;
+ this.next();
+ node.argument = this.parseMaybeUnary(null, true);
+ this.checkExpressionErrors(refDestructuringErrors, true);
+ if (update) { this.checkLVal(node.argument); }
+ else if (this.strict && node.operator === "delete" &&
+ node.argument.type === "Identifier")
+ { this.raiseRecoverable(node.start, "Deleting local variable in strict mode"); }
+ else { sawUnary = true; }
+ expr = this.finishNode(node, update ? "UpdateExpression" : "UnaryExpression");
+ } else {
+ expr = this.parseExprSubscripts(refDestructuringErrors);
+ if (this.checkExpressionErrors(refDestructuringErrors)) { return expr }
+ while (this.type.postfix && !this.canInsertSemicolon()) {
+ var node$1 = this$1.startNodeAt(startPos, startLoc);
+ node$1.operator = this$1.value;
+ node$1.prefix = false;
+ node$1.argument = expr;
+ this$1.checkLVal(expr);
+ this$1.next();
+ expr = this$1.finishNode(node$1, "UpdateExpression");
+ }
+ }
+
+ if (!sawUnary && this.eat(types.starstar))
+ { return this.buildBinary(startPos, startLoc, expr, this.parseMaybeUnary(null, false), "**", false) }
+ else
+ { return expr }
+};
+
+// Parse call, dot, and `[]`-subscript expressions.
+
+pp$3.parseExprSubscripts = function(refDestructuringErrors) {
+ var startPos = this.start, startLoc = this.startLoc;
+ var expr = this.parseExprAtom(refDestructuringErrors);
+ var skipArrowSubscripts = expr.type === "ArrowFunctionExpression" && this.input.slice(this.lastTokStart, this.lastTokEnd) !== ")";
+ if (this.checkExpressionErrors(refDestructuringErrors) || skipArrowSubscripts) { return expr }
+ var result = this.parseSubscripts(expr, startPos, startLoc);
+ if (refDestructuringErrors && result.type === "MemberExpression") {
+ if (refDestructuringErrors.parenthesizedAssign >= result.start) { refDestructuringErrors.parenthesizedAssign = -1; }
+ if (refDestructuringErrors.parenthesizedBind >= result.start) { refDestructuringErrors.parenthesizedBind = -1; }
+ }
+ return result
+};
+
+pp$3.parseSubscripts = function(base, startPos, startLoc, noCalls) {
+ var this$1 = this;
+
+ var maybeAsyncArrow = this.options.ecmaVersion >= 8 && base.type === "Identifier" && base.name === "async" &&
+ this.lastTokEnd == base.end && !this.canInsertSemicolon();
+ for (var computed = (void 0);;) {
+ if ((computed = this$1.eat(types.bracketL)) || this$1.eat(types.dot)) {
+ var node = this$1.startNodeAt(startPos, startLoc);
+ node.object = base;
+ node.property = computed ? this$1.parseExpression() : this$1.parseIdent(true);
+ node.computed = !!computed;
+ if (computed) { this$1.expect(types.bracketR); }
+ base = this$1.finishNode(node, "MemberExpression");
+ } else if (!noCalls && this$1.eat(types.parenL)) {
+ var refDestructuringErrors = new DestructuringErrors, oldYieldPos = this$1.yieldPos, oldAwaitPos = this$1.awaitPos;
+ this$1.yieldPos = 0;
+ this$1.awaitPos = 0;
+ var exprList = this$1.parseExprList(types.parenR, this$1.options.ecmaVersion >= 8, false, refDestructuringErrors);
+ if (maybeAsyncArrow && !this$1.canInsertSemicolon() && this$1.eat(types.arrow)) {
+ this$1.checkPatternErrors(refDestructuringErrors, false);
+ this$1.checkYieldAwaitInDefaultParams();
+ this$1.yieldPos = oldYieldPos;
+ this$1.awaitPos = oldAwaitPos;
+ return this$1.parseArrowExpression(this$1.startNodeAt(startPos, startLoc), exprList, true)
+ }
+ this$1.checkExpressionErrors(refDestructuringErrors, true);
+ this$1.yieldPos = oldYieldPos || this$1.yieldPos;
+ this$1.awaitPos = oldAwaitPos || this$1.awaitPos;
+ var node$1 = this$1.startNodeAt(startPos, startLoc);
+ node$1.callee = base;
+ node$1.arguments = exprList;
+ base = this$1.finishNode(node$1, "CallExpression");
+ } else if (this$1.type === types.backQuote) {
+ var node$2 = this$1.startNodeAt(startPos, startLoc);
+ node$2.tag = base;
+ node$2.quasi = this$1.parseTemplate({isTagged: true});
+ base = this$1.finishNode(node$2, "TaggedTemplateExpression");
+ } else {
+ return base
+ }
+ }
+};
+
+// Parse an atomic expression — either a single token that is an
+// expression, an expression started by a keyword like `function` or
+// `new`, or an expression wrapped in punctuation like `()`, `[]`,
+// or `{}`.
+
+pp$3.parseExprAtom = function(refDestructuringErrors) {
+ var node, canBeArrow = this.potentialArrowAt == this.start;
+ switch (this.type) {
+ case types._super:
+ if (!this.inFunction)
+ { this.raise(this.start, "'super' outside of function or class"); }
+
+ case types._this:
+ var type = this.type === types._this ? "ThisExpression" : "Super";
+ node = this.startNode();
+ this.next();
+ return this.finishNode(node, type)
+
+ case types.name:
+ var startPos = this.start, startLoc = this.startLoc;
+ var id = this.parseIdent(this.type !== types.name);
+ if (this.options.ecmaVersion >= 8 && id.name === "async" && !this.canInsertSemicolon() && this.eat(types._function))
+ { return this.parseFunction(this.startNodeAt(startPos, startLoc), false, false, true) }
+ if (canBeArrow && !this.canInsertSemicolon()) {
+ if (this.eat(types.arrow))
+ { return this.parseArrowExpression(this.startNodeAt(startPos, startLoc), [id], false) }
+ if (this.options.ecmaVersion >= 8 && id.name === "async" && this.type === types.name) {
+ id = this.parseIdent();
+ if (this.canInsertSemicolon() || !this.eat(types.arrow))
+ { this.unexpected(); }
+ return this.parseArrowExpression(this.startNodeAt(startPos, startLoc), [id], true)
+ }
+ }
+ return id
+
+ case types.regexp:
+ var value = this.value;
+ node = this.parseLiteral(value.value);
+ node.regex = {pattern: value.pattern, flags: value.flags};
+ return node
+
+ case types.num: case types.string:
+ return this.parseLiteral(this.value)
+
+ case types._null: case types._true: case types._false:
+ node = this.startNode();
+ node.value = this.type === types._null ? null : this.type === types._true;
+ node.raw = this.type.keyword;
+ this.next();
+ return this.finishNode(node, "Literal")
+
+ case types.parenL:
+ var start = this.start, expr = this.parseParenAndDistinguishExpression(canBeArrow);
+ if (refDestructuringErrors) {
+ if (refDestructuringErrors.parenthesizedAssign < 0 && !this.isSimpleAssignTarget(expr))
+ { refDestructuringErrors.parenthesizedAssign = start; }
+ if (refDestructuringErrors.parenthesizedBind < 0)
+ { refDestructuringErrors.parenthesizedBind = start; }
+ }
+ return expr
+
+ case types.bracketL:
+ node = this.startNode();
+ this.next();
+ node.elements = this.parseExprList(types.bracketR, true, true, refDestructuringErrors);
+ return this.finishNode(node, "ArrayExpression")
+
+ case types.braceL:
+ return this.parseObj(false, refDestructuringErrors)
+
+ case types._function:
+ node = this.startNode();
+ this.next();
+ return this.parseFunction(node, false)
+
+ case types._class:
+ return this.parseClass(this.startNode(), false)
+
+ case types._new:
+ return this.parseNew()
+
+ case types.backQuote:
+ return this.parseTemplate()
+
+ default:
+ this.unexpected();
+ }
+};
+
+pp$3.parseLiteral = function(value) {
+ var node = this.startNode();
+ node.value = value;
+ node.raw = this.input.slice(this.start, this.end);
+ this.next();
+ return this.finishNode(node, "Literal")
+};
+
+pp$3.parseParenExpression = function() {
+ this.expect(types.parenL);
+ var val = this.parseExpression();
+ this.expect(types.parenR);
+ return val
+};
+
+pp$3.parseParenAndDistinguishExpression = function(canBeArrow) {
+ var this$1 = this;
+
+ var startPos = this.start, startLoc = this.startLoc, val, allowTrailingComma = this.options.ecmaVersion >= 8;
+ if (this.options.ecmaVersion >= 6) {
+ this.next();
+
+ var innerStartPos = this.start, innerStartLoc = this.startLoc;
+ var exprList = [], first = true, lastIsComma = false;
+ var refDestructuringErrors = new DestructuringErrors, oldYieldPos = this.yieldPos, oldAwaitPos = this.awaitPos, spreadStart, innerParenStart;
+ this.yieldPos = 0;
+ this.awaitPos = 0;
+ while (this.type !== types.parenR) {
+ first ? first = false : this$1.expect(types.comma);
+ if (allowTrailingComma && this$1.afterTrailingComma(types.parenR, true)) {
+ lastIsComma = true;
+ break
+ } else if (this$1.type === types.ellipsis) {
+ spreadStart = this$1.start;
+ exprList.push(this$1.parseParenItem(this$1.parseRestBinding()));
+ if (this$1.type === types.comma) { this$1.raise(this$1.start, "Comma is not permitted after the rest element"); }
+ break
+ } else {
+ if (this$1.type === types.parenL && !innerParenStart) {
+ innerParenStart = this$1.start;
+ }
+ exprList.push(this$1.parseMaybeAssign(false, refDestructuringErrors, this$1.parseParenItem));
+ }
+ }
+ var innerEndPos = this.start, innerEndLoc = this.startLoc;
+ this.expect(types.parenR);
+
+ if (canBeArrow && !this.canInsertSemicolon() && this.eat(types.arrow)) {
+ this.checkPatternErrors(refDestructuringErrors, false);
+ this.checkYieldAwaitInDefaultParams();
+ if (innerParenStart) { this.unexpected(innerParenStart); }
+ this.yieldPos = oldYieldPos;
+ this.awaitPos = oldAwaitPos;
+ return this.parseParenArrowList(startPos, startLoc, exprList)
+ }
+
+ if (!exprList.length || lastIsComma) { this.unexpected(this.lastTokStart); }
+ if (spreadStart) { this.unexpected(spreadStart); }
+ this.checkExpressionErrors(refDestructuringErrors, true);
+ this.yieldPos = oldYieldPos || this.yieldPos;
+ this.awaitPos = oldAwaitPos || this.awaitPos;
+
+ if (exprList.length > 1) {
+ val = this.startNodeAt(innerStartPos, innerStartLoc);
+ val.expressions = exprList;
+ this.finishNodeAt(val, "SequenceExpression", innerEndPos, innerEndLoc);
+ } else {
+ val = exprList[0];
+ }
+ } else {
+ val = this.parseParenExpression();
+ }
+
+ if (this.options.preserveParens) {
+ var par = this.startNodeAt(startPos, startLoc);
+ par.expression = val;
+ return this.finishNode(par, "ParenthesizedExpression")
+ } else {
+ return val
+ }
+};
+
+pp$3.parseParenItem = function(item) {
+ return item
+};
+
+pp$3.parseParenArrowList = function(startPos, startLoc, exprList) {
+ return this.parseArrowExpression(this.startNodeAt(startPos, startLoc), exprList)
+};
+
+// New's precedence is slightly tricky. It must allow its argument to
+// be a `[]` or dot subscript expression, but not a call — at least,
+// not without wrapping it in parentheses. Thus, it uses the noCalls
+// argument to parseSubscripts to prevent it from consuming the
+// argument list.
+
+var empty$1 = [];
+
+pp$3.parseNew = function() {
+ var node = this.startNode();
+ var meta = this.parseIdent(true);
+ if (this.options.ecmaVersion >= 6 && this.eat(types.dot)) {
+ node.meta = meta;
+ node.property = this.parseIdent(true);
+ if (node.property.name !== "target")
+ { this.raiseRecoverable(node.property.start, "The only valid meta property for new is new.target"); }
+ if (!this.inFunction)
+ { this.raiseRecoverable(node.start, "new.target can only be used in functions"); }
+ return this.finishNode(node, "MetaProperty")
+ }
+ var startPos = this.start, startLoc = this.startLoc;
+ node.callee = this.parseSubscripts(this.parseExprAtom(), startPos, startLoc, true);
+ if (this.eat(types.parenL)) { node.arguments = this.parseExprList(types.parenR, this.options.ecmaVersion >= 8, false); }
+ else { node.arguments = empty$1; }
+ return this.finishNode(node, "NewExpression")
+};
+
+// Parse template expression.
+
+pp$3.parseTemplateElement = function(ref) {
+ var isTagged = ref.isTagged;
+
+ var elem = this.startNode();
+ if (this.type === types.invalidTemplate) {
+ if (!isTagged) {
+ this.raiseRecoverable(this.start, "Bad escape sequence in untagged template literal");
+ }
+ elem.value = {
+ raw: this.value,
+ cooked: null
+ };
+ } else {
+ elem.value = {
+ raw: this.input.slice(this.start, this.end).replace(/\r\n?/g, "\n"),
+ cooked: this.value
+ };
+ }
+ this.next();
+ elem.tail = this.type === types.backQuote;
+ return this.finishNode(elem, "TemplateElement")
+};
+
+pp$3.parseTemplate = function(ref) {
+ var this$1 = this;
+ if ( ref === void 0 ) ref = {};
+ var isTagged = ref.isTagged; if ( isTagged === void 0 ) isTagged = false;
+
+ var node = this.startNode();
+ this.next();
+ node.expressions = [];
+ var curElt = this.parseTemplateElement({isTagged: isTagged});
+ node.quasis = [curElt];
+ while (!curElt.tail) {
+ this$1.expect(types.dollarBraceL);
+ node.expressions.push(this$1.parseExpression());
+ this$1.expect(types.braceR);
+ node.quasis.push(curElt = this$1.parseTemplateElement({isTagged: isTagged}));
+ }
+ this.next();
+ return this.finishNode(node, "TemplateLiteral")
+};
+
+// Parse an object literal or binding pattern.
+
+pp$3.isAsyncProp = function(prop) {
+ return !prop.computed && prop.key.type === "Identifier" && prop.key.name === "async" &&
+ (this.type === types.name || this.type === types.num || this.type === types.string || this.type === types.bracketL || this.type.keyword) &&
+ !lineBreak.test(this.input.slice(this.lastTokEnd, this.start))
+};
+
+pp$3.parseObj = function(isPattern, refDestructuringErrors) {
+ var this$1 = this;
+
+ var node = this.startNode(), first = true, propHash = {};
+ node.properties = [];
+ this.next();
+ while (!this.eat(types.braceR)) {
+ if (!first) {
+ this$1.expect(types.comma);
+ if (this$1.afterTrailingComma(types.braceR)) { break }
+ } else { first = false; }
+
+ var prop = this$1.startNode(), isGenerator = (void 0), isAsync = (void 0), startPos = (void 0), startLoc = (void 0);
+ if (this$1.options.ecmaVersion >= 6) {
+ prop.method = false;
+ prop.shorthand = false;
+ if (isPattern || refDestructuringErrors) {
+ startPos = this$1.start;
+ startLoc = this$1.startLoc;
+ }
+ if (!isPattern)
+ { isGenerator = this$1.eat(types.star); }
+ }
+ this$1.parsePropertyName(prop);
+ if (!isPattern && this$1.options.ecmaVersion >= 8 && !isGenerator && this$1.isAsyncProp(prop)) {
+ isAsync = true;
+ this$1.parsePropertyName(prop, refDestructuringErrors);
+ } else {
+ isAsync = false;
+ }
+ this$1.parsePropertyValue(prop, isPattern, isGenerator, isAsync, startPos, startLoc, refDestructuringErrors);
+ this$1.checkPropClash(prop, propHash);
+ node.properties.push(this$1.finishNode(prop, "Property"));
+ }
+ return this.finishNode(node, isPattern ? "ObjectPattern" : "ObjectExpression")
+};
+
+pp$3.parsePropertyValue = function(prop, isPattern, isGenerator, isAsync, startPos, startLoc, refDestructuringErrors) {
+ if ((isGenerator || isAsync) && this.type === types.colon)
+ { this.unexpected(); }
+
+ if (this.eat(types.colon)) {
+ prop.value = isPattern ? this.parseMaybeDefault(this.start, this.startLoc) : this.parseMaybeAssign(false, refDestructuringErrors);
+ prop.kind = "init";
+ } else if (this.options.ecmaVersion >= 6 && this.type === types.parenL) {
+ if (isPattern) { this.unexpected(); }
+ prop.kind = "init";
+ prop.method = true;
+ prop.value = this.parseMethod(isGenerator, isAsync);
+ } else if (this.options.ecmaVersion >= 5 && !prop.computed && prop.key.type === "Identifier" &&
+ (prop.key.name === "get" || prop.key.name === "set") &&
+ (this.type != types.comma && this.type != types.braceR)) {
+ if (isGenerator || isAsync || isPattern) { this.unexpected(); }
+ prop.kind = prop.key.name;
+ this.parsePropertyName(prop);
+ prop.value = this.parseMethod(false);
+ var paramCount = prop.kind === "get" ? 0 : 1;
+ if (prop.value.params.length !== paramCount) {
+ var start = prop.value.start;
+ if (prop.kind === "get")
+ { this.raiseRecoverable(start, "getter should have no params"); }
+ else
+ { this.raiseRecoverable(start, "setter should have exactly one param"); }
+ } else {
+ if (prop.kind === "set" && prop.value.params[0].type === "RestElement")
+ { this.raiseRecoverable(prop.value.params[0].start, "Setter cannot use rest params"); }
+ }
+ } else if (this.options.ecmaVersion >= 6 && !prop.computed && prop.key.type === "Identifier") {
+ this.checkUnreserved(prop.key);
+ prop.kind = "init";
+ if (isPattern) {
+ prop.value = this.parseMaybeDefault(startPos, startLoc, prop.key);
+ } else if (this.type === types.eq && refDestructuringErrors) {
+ if (refDestructuringErrors.shorthandAssign < 0)
+ { refDestructuringErrors.shorthandAssign = this.start; }
+ prop.value = this.parseMaybeDefault(startPos, startLoc, prop.key);
+ } else {
+ prop.value = prop.key;
+ }
+ prop.shorthand = true;
+ } else { this.unexpected(); }
+};
+
+pp$3.parsePropertyName = function(prop) {
+ if (this.options.ecmaVersion >= 6) {
+ if (this.eat(types.bracketL)) {
+ prop.computed = true;
+ prop.key = this.parseMaybeAssign();
+ this.expect(types.bracketR);
+ return prop.key
+ } else {
+ prop.computed = false;
+ }
+ }
+ return prop.key = this.type === types.num || this.type === types.string ? this.parseExprAtom() : this.parseIdent(true)
+};
+
+// Initialize empty function node.
+
+pp$3.initFunction = function(node) {
+ node.id = null;
+ if (this.options.ecmaVersion >= 6) {
+ node.generator = false;
+ node.expression = false;
+ }
+ if (this.options.ecmaVersion >= 8)
+ { node.async = false; }
+};
+
+// Parse object or class method.
+
+pp$3.parseMethod = function(isGenerator, isAsync) {
+ var node = this.startNode(), oldInGen = this.inGenerator, oldInAsync = this.inAsync,
+ oldYieldPos = this.yieldPos, oldAwaitPos = this.awaitPos, oldInFunc = this.inFunction;
+
+ this.initFunction(node);
+ if (this.options.ecmaVersion >= 6)
+ { node.generator = isGenerator; }
+ if (this.options.ecmaVersion >= 8)
+ { node.async = !!isAsync; }
+
+ this.inGenerator = node.generator;
+ this.inAsync = node.async;
+ this.yieldPos = 0;
+ this.awaitPos = 0;
+ this.inFunction = true;
+ this.enterFunctionScope();
+
+ this.expect(types.parenL);
+ node.params = this.parseBindingList(types.parenR, false, this.options.ecmaVersion >= 8);
+ this.checkYieldAwaitInDefaultParams();
+ this.parseFunctionBody(node, false);
+
+ this.inGenerator = oldInGen;
+ this.inAsync = oldInAsync;
+ this.yieldPos = oldYieldPos;
+ this.awaitPos = oldAwaitPos;
+ this.inFunction = oldInFunc;
+ return this.finishNode(node, "FunctionExpression")
+};
+
+// Parse arrow function expression with given parameters.
+
+pp$3.parseArrowExpression = function(node, params, isAsync) {
+ var oldInGen = this.inGenerator, oldInAsync = this.inAsync,
+ oldYieldPos = this.yieldPos, oldAwaitPos = this.awaitPos, oldInFunc = this.inFunction;
+
+ this.enterFunctionScope();
+ this.initFunction(node);
+ if (this.options.ecmaVersion >= 8)
+ { node.async = !!isAsync; }
+
+ this.inGenerator = false;
+ this.inAsync = node.async;
+ this.yieldPos = 0;
+ this.awaitPos = 0;
+ this.inFunction = true;
+
+ node.params = this.toAssignableList(params, true);
+ this.parseFunctionBody(node, true);
+
+ this.inGenerator = oldInGen;
+ this.inAsync = oldInAsync;
+ this.yieldPos = oldYieldPos;
+ this.awaitPos = oldAwaitPos;
+ this.inFunction = oldInFunc;
+ return this.finishNode(node, "ArrowFunctionExpression")
+};
+
+// Parse function body and check parameters.
+
+pp$3.parseFunctionBody = function(node, isArrowFunction) {
+ var isExpression = isArrowFunction && this.type !== types.braceL;
+ var oldStrict = this.strict, useStrict = false;
+
+ if (isExpression) {
+ node.body = this.parseMaybeAssign();
+ node.expression = true;
+ this.checkParams(node, false);
+ } else {
+ var nonSimple = this.options.ecmaVersion >= 7 && !this.isSimpleParamList(node.params);
+ if (!oldStrict || nonSimple) {
+ useStrict = this.strictDirective(this.end);
+ // If this is a strict mode function, verify that argument names
+ // are not repeated, and it does not try to bind the words `eval`
+ // or `arguments`.
+ if (useStrict && nonSimple)
+ { this.raiseRecoverable(node.start, "Illegal 'use strict' directive in function with non-simple parameter list"); }
+ }
+ // Start a new scope with regard to labels and the `inFunction`
+ // flag (restore them to their old value afterwards).
+ var oldLabels = this.labels;
+ this.labels = [];
+ if (useStrict) { this.strict = true; }
+
+ // Add the params to varDeclaredNames to ensure that an error is thrown
+ // if a let/const declaration in the function clashes with one of the params.
+ this.checkParams(node, !oldStrict && !useStrict && !isArrowFunction && this.isSimpleParamList(node.params));
+ node.body = this.parseBlock(false);
+ node.expression = false;
+ this.labels = oldLabels;
+ }
+ this.exitFunctionScope();
+
+ if (this.strict && node.id) {
+ // Ensure the function name isn't a forbidden identifier in strict mode, e.g. 'eval'
+ this.checkLVal(node.id, "none");
+ }
+ this.strict = oldStrict;
+};
+
+pp$3.isSimpleParamList = function(params) {
+ for (var i = 0, list = params; i < list.length; i += 1)
+ {
+ var param = list[i];
+
+ if (param.type !== "Identifier") { return false
+ } }
+ return true
+};
+
+// Checks function params for various disallowed patterns such as using "eval"
+// or "arguments" and duplicate parameters.
+
+pp$3.checkParams = function(node, allowDuplicates) {
+ var this$1 = this;
+
+ var nameHash = {};
+ for (var i = 0, list = node.params; i < list.length; i += 1)
+ {
+ var param = list[i];
+
+ this$1.checkLVal(param, "var", allowDuplicates ? null : nameHash);
+ }
+};
+
+// Parses a comma-separated list of expressions, and returns them as
+// an array. `close` is the token type that ends the list, and
+// `allowEmpty` can be turned on to allow subsequent commas with
+// nothing in between them to be parsed as `null` (which is needed
+// for array literals).
+
+pp$3.parseExprList = function(close, allowTrailingComma, allowEmpty, refDestructuringErrors) {
+ var this$1 = this;
+
+ var elts = [], first = true;
+ while (!this.eat(close)) {
+ if (!first) {
+ this$1.expect(types.comma);
+ if (allowTrailingComma && this$1.afterTrailingComma(close)) { break }
+ } else { first = false; }
+
+ var elt = (void 0);
+ if (allowEmpty && this$1.type === types.comma)
+ { elt = null; }
+ else if (this$1.type === types.ellipsis) {
+ elt = this$1.parseSpread(refDestructuringErrors);
+ if (refDestructuringErrors && this$1.type === types.comma && refDestructuringErrors.trailingComma < 0)
+ { refDestructuringErrors.trailingComma = this$1.start; }
+ } else {
+ elt = this$1.parseMaybeAssign(false, refDestructuringErrors);
+ }
+ elts.push(elt);
+ }
+ return elts
+};
+
+// Parse the next token as an identifier. If `liberal` is true (used
+// when parsing properties), it will also convert keywords into
+// identifiers.
+
+pp$3.checkUnreserved = function(ref) {
+ var start = ref.start;
+ var end = ref.end;
+ var name = ref.name;
+
+ if (this.inGenerator && name === "yield")
+ { this.raiseRecoverable(start, "Can not use 'yield' as identifier inside a generator"); }
+ if (this.inAsync && name === "await")
+ { this.raiseRecoverable(start, "Can not use 'await' as identifier inside an async function"); }
+ if (this.isKeyword(name))
+ { this.raise(start, ("Unexpected keyword '" + name + "'")); }
+ if (this.options.ecmaVersion < 6 &&
+ this.input.slice(start, end).indexOf("\\") != -1) { return }
+ var re = this.strict ? this.reservedWordsStrict : this.reservedWords;
+ if (re.test(name))
+ { this.raiseRecoverable(start, ("The keyword '" + name + "' is reserved")); }
+};
+
+pp$3.parseIdent = function(liberal, isBinding) {
+ var node = this.startNode();
+ if (liberal && this.options.allowReserved == "never") { liberal = false; }
+ if (this.type === types.name) {
+ node.name = this.value;
+ } else if (this.type.keyword) {
+ node.name = this.type.keyword;
+ } else {
+ this.unexpected();
+ }
+ this.next();
+ this.finishNode(node, "Identifier");
+ if (!liberal) { this.checkUnreserved(node); }
+ return node
+};
+
+// Parses yield expression inside generator.
+
+pp$3.parseYield = function() {
+ if (!this.yieldPos) { this.yieldPos = this.start; }
+
+ var node = this.startNode();
+ this.next();
+ if (this.type == types.semi || this.canInsertSemicolon() || (this.type != types.star && !this.type.startsExpr)) {
+ node.delegate = false;
+ node.argument = null;
+ } else {
+ node.delegate = this.eat(types.star);
+ node.argument = this.parseMaybeAssign();
+ }
+ return this.finishNode(node, "YieldExpression")
+};
+
+pp$3.parseAwait = function() {
+ if (!this.awaitPos) { this.awaitPos = this.start; }
+
+ var node = this.startNode();
+ this.next();
+ node.argument = this.parseMaybeUnary(null, true);
+ return this.finishNode(node, "AwaitExpression")
+};
+
+var pp$4 = Parser.prototype;
+
+// This function is used to raise exceptions on parse errors. It
+// takes an offset integer (into the current `input`) to indicate
+// the location of the error, attaches the position to the end
+// of the error message, and then raises a `SyntaxError` with that
+// message.
+
+pp$4.raise = function(pos, message) {
+ var loc = getLineInfo(this.input, pos);
+ message += " (" + loc.line + ":" + loc.column + ")";
+ var err = new SyntaxError(message);
+ err.pos = pos; err.loc = loc; err.raisedAt = this.pos;
+ throw err
+};
+
+pp$4.raiseRecoverable = pp$4.raise;
+
+pp$4.curPosition = function() {
+ if (this.options.locations) {
+ return new Position(this.curLine, this.pos - this.lineStart)
+ }
+};
+
+var pp$5 = Parser.prototype;
+
+// Object.assign polyfill
+var assign = Object.assign || function(target) {
+ var sources = [], len = arguments.length - 1;
+ while ( len-- > 0 ) sources[ len ] = arguments[ len + 1 ];
+
+ for (var i = 0, list = sources; i < list.length; i += 1) {
+ var source = list[i];
+
+ for (var key in source) {
+ if (has(source, key)) {
+ target[key] = source[key];
+ }
+ }
+ }
+ return target
+};
+
+// The functions in this module keep track of declared variables in the current scope in order to detect duplicate variable names.
+
+pp$5.enterFunctionScope = function() {
+ // var: a hash of var-declared names in the current lexical scope
+ // lexical: a hash of lexically-declared names in the current lexical scope
+ // childVar: a hash of var-declared names in all child lexical scopes of the current lexical scope (within the current function scope)
+ // parentLexical: a hash of lexically-declared names in all parent lexical scopes of the current lexical scope (within the current function scope)
+ this.scopeStack.push({var: {}, lexical: {}, childVar: {}, parentLexical: {}});
+};
+
+pp$5.exitFunctionScope = function() {
+ this.scopeStack.pop();
+};
+
+pp$5.enterLexicalScope = function() {
+ var parentScope = this.scopeStack[this.scopeStack.length - 1];
+ var childScope = {var: {}, lexical: {}, childVar: {}, parentLexical: {}};
+
+ this.scopeStack.push(childScope);
+ assign(childScope.parentLexical, parentScope.lexical, parentScope.parentLexical);
+};
+
+pp$5.exitLexicalScope = function() {
+ var childScope = this.scopeStack.pop();
+ var parentScope = this.scopeStack[this.scopeStack.length - 1];
+
+ assign(parentScope.childVar, childScope.var, childScope.childVar);
+};
+
+/**
+ * A name can be declared with `var` if there are no variables with the same name declared with `let`/`const`
+ * in the current lexical scope or any of the parent lexical scopes in this function.
+ */
+pp$5.canDeclareVarName = function(name) {
+ var currentScope = this.scopeStack[this.scopeStack.length - 1];
+
+ return !has(currentScope.lexical, name) && !has(currentScope.parentLexical, name)
+};
+
+/**
+ * A name can be declared with `let`/`const` if there are no variables with the same name declared with `let`/`const`
+ * in the current scope, and there are no variables with the same name declared with `var` in the current scope or in
+ * any child lexical scopes in this function.
+ */
+pp$5.canDeclareLexicalName = function(name) {
+ var currentScope = this.scopeStack[this.scopeStack.length - 1];
+
+ return !has(currentScope.lexical, name) && !has(currentScope.var, name) && !has(currentScope.childVar, name)
+};
+
+pp$5.declareVarName = function(name) {
+ this.scopeStack[this.scopeStack.length - 1].var[name] = true;
+};
+
+pp$5.declareLexicalName = function(name) {
+ this.scopeStack[this.scopeStack.length - 1].lexical[name] = true;
+};
+
+var Node = function Node(parser, pos, loc) {
+ this.type = "";
+ this.start = pos;
+ this.end = 0;
+ if (parser.options.locations)
+ { this.loc = new SourceLocation(parser, loc); }
+ if (parser.options.directSourceFile)
+ { this.sourceFile = parser.options.directSourceFile; }
+ if (parser.options.ranges)
+ { this.range = [pos, 0]; }
+};
+
+// Start an AST node, attaching a start offset.
+
+var pp$6 = Parser.prototype;
+
+pp$6.startNode = function() {
+ return new Node(this, this.start, this.startLoc)
+};
+
+pp$6.startNodeAt = function(pos, loc) {
+ return new Node(this, pos, loc)
+};
+
+// Finish an AST node, adding `type` and `end` properties.
+
+function finishNodeAt(node, type, pos, loc) {
+ node.type = type;
+ node.end = pos;
+ if (this.options.locations)
+ { node.loc.end = loc; }
+ if (this.options.ranges)
+ { node.range[1] = pos; }
+ return node
+}
+
+pp$6.finishNode = function(node, type) {
+ return finishNodeAt.call(this, node, type, this.lastTokEnd, this.lastTokEndLoc)
+};
+
+// Finish node at given position
+
+pp$6.finishNodeAt = function(node, type, pos, loc) {
+ return finishNodeAt.call(this, node, type, pos, loc)
+};
+
+// The algorithm used to determine whether a regexp can appear at a
+// given point in the program is loosely based on sweet.js' approach.
+// See https://github.com/mozilla/sweet.js/wiki/design
+
+var TokContext = function TokContext(token, isExpr, preserveSpace, override, generator) {
+ this.token = token;
+ this.isExpr = !!isExpr;
+ this.preserveSpace = !!preserveSpace;
+ this.override = override;
+ this.generator = !!generator;
+};
+
+var types$1 = {
+ b_stat: new TokContext("{", false),
+ b_expr: new TokContext("{", true),
+ b_tmpl: new TokContext("${", false),
+ p_stat: new TokContext("(", false),
+ p_expr: new TokContext("(", true),
+ q_tmpl: new TokContext("`", true, true, function (p) { return p.tryReadTemplateToken(); }),
+ f_stat: new TokContext("function", false),
+ f_expr: new TokContext("function", true),
+ f_expr_gen: new TokContext("function", true, false, null, true),
+ f_gen: new TokContext("function", false, false, null, true)
+};
+
+var pp$7 = Parser.prototype;
+
+pp$7.initialContext = function() {
+ return [types$1.b_stat]
+};
+
+pp$7.braceIsBlock = function(prevType) {
+ var parent = this.curContext();
+ if (parent === types$1.f_expr || parent === types$1.f_stat)
+ { return true }
+ if (prevType === types.colon && (parent === types$1.b_stat || parent === types$1.b_expr))
+ { return !parent.isExpr }
+
+ // The check for `tt.name && exprAllowed` detects whether we are
+ // after a `yield` or `of` construct. See the `updateContext` for
+ // `tt.name`.
+ if (prevType === types._return || prevType == types.name && this.exprAllowed)
+ { return lineBreak.test(this.input.slice(this.lastTokEnd, this.start)) }
+ if (prevType === types._else || prevType === types.semi || prevType === types.eof || prevType === types.parenR || prevType == types.arrow)
+ { return true }
+ if (prevType == types.braceL)
+ { return parent === types$1.b_stat }
+ if (prevType == types._var || prevType == types.name)
+ { return false }
+ return !this.exprAllowed
+};
+
+pp$7.inGeneratorContext = function() {
+ var this$1 = this;
+
+ for (var i = this.context.length - 1; i >= 1; i--) {
+ var context = this$1.context[i];
+ if (context.token === "function")
+ { return context.generator }
+ }
+ return false
+};
+
+pp$7.updateContext = function(prevType) {
+ var update, type = this.type;
+ if (type.keyword && prevType == types.dot)
+ { this.exprAllowed = false; }
+ else if (update = type.updateContext)
+ { update.call(this, prevType); }
+ else
+ { this.exprAllowed = type.beforeExpr; }
+};
+
+// Token-specific context update code
+
+types.parenR.updateContext = types.braceR.updateContext = function() {
+ if (this.context.length == 1) {
+ this.exprAllowed = true;
+ return
+ }
+ var out = this.context.pop();
+ if (out === types$1.b_stat && this.curContext().token === "function") {
+ out = this.context.pop();
+ }
+ this.exprAllowed = !out.isExpr;
+};
+
+types.braceL.updateContext = function(prevType) {
+ this.context.push(this.braceIsBlock(prevType) ? types$1.b_stat : types$1.b_expr);
+ this.exprAllowed = true;
+};
+
+types.dollarBraceL.updateContext = function() {
+ this.context.push(types$1.b_tmpl);
+ this.exprAllowed = true;
+};
+
+types.parenL.updateContext = function(prevType) {
+ var statementParens = prevType === types._if || prevType === types._for || prevType === types._with || prevType === types._while;
+ this.context.push(statementParens ? types$1.p_stat : types$1.p_expr);
+ this.exprAllowed = true;
+};
+
+types.incDec.updateContext = function() {
+ // tokExprAllowed stays unchanged
+};
+
+types._function.updateContext = types._class.updateContext = function(prevType) {
+ if (prevType.beforeExpr && prevType !== types.semi && prevType !== types._else &&
+ !((prevType === types.colon || prevType === types.braceL) && this.curContext() === types$1.b_stat))
+ { this.context.push(types$1.f_expr); }
+ else
+ { this.context.push(types$1.f_stat); }
+ this.exprAllowed = false;
+};
+
+types.backQuote.updateContext = function() {
+ if (this.curContext() === types$1.q_tmpl)
+ { this.context.pop(); }
+ else
+ { this.context.push(types$1.q_tmpl); }
+ this.exprAllowed = false;
+};
+
+types.star.updateContext = function(prevType) {
+ if (prevType == types._function) {
+ var index = this.context.length - 1;
+ if (this.context[index] === types$1.f_expr)
+ { this.context[index] = types$1.f_expr_gen; }
+ else
+ { this.context[index] = types$1.f_gen; }
+ }
+ this.exprAllowed = true;
+};
+
+types.name.updateContext = function(prevType) {
+ var allowed = false;
+ if (this.options.ecmaVersion >= 6) {
+ if (this.value == "of" && !this.exprAllowed ||
+ this.value == "yield" && this.inGeneratorContext())
+ { allowed = true; }
+ }
+ this.exprAllowed = allowed;
+};
+
+// Object type used to represent tokens. Note that normally, tokens
+// simply exist as properties on the parser object. This is only
+// used for the onToken callback and the external tokenizer.
+
+var Token = function Token(p) {
+ this.type = p.type;
+ this.value = p.value;
+ this.start = p.start;
+ this.end = p.end;
+ if (p.options.locations)
+ { this.loc = new SourceLocation(p, p.startLoc, p.endLoc); }
+ if (p.options.ranges)
+ { this.range = [p.start, p.end]; }
+};
+
+// ## Tokenizer
+
+var pp$8 = Parser.prototype;
+
+// Are we running under Rhino?
+var isRhino = typeof Packages == "object" && Object.prototype.toString.call(Packages) == "[object JavaPackage]";
+
+// Move to the next token
+
+pp$8.next = function() {
+ if (this.options.onToken)
+ { this.options.onToken(new Token(this)); }
+
+ this.lastTokEnd = this.end;
+ this.lastTokStart = this.start;
+ this.lastTokEndLoc = this.endLoc;
+ this.lastTokStartLoc = this.startLoc;
+ this.nextToken();
+};
+
+pp$8.getToken = function() {
+ this.next();
+ return new Token(this)
+};
+
+// If we're in an ES6 environment, make parsers iterable
+if (typeof Symbol !== "undefined")
+ { pp$8[Symbol.iterator] = function() {
+ var this$1 = this;
+
+ return {
+ next: function () {
+ var token = this$1.getToken();
+ return {
+ done: token.type === types.eof,
+ value: token
+ }
+ }
+ }
+ }; }
+
+// Toggle strict mode. Re-reads the next number or string to please
+// pedantic tests (`"use strict"; 010;` should fail).
+
+pp$8.curContext = function() {
+ return this.context[this.context.length - 1]
+};
+
+// Read a single token, updating the parser object's token-related
+// properties.
+
+pp$8.nextToken = function() {
+ var curContext = this.curContext();
+ if (!curContext || !curContext.preserveSpace) { this.skipSpace(); }
+
+ this.start = this.pos;
+ if (this.options.locations) { this.startLoc = this.curPosition(); }
+ if (this.pos >= this.input.length) { return this.finishToken(types.eof) }
+
+ if (curContext.override) { return curContext.override(this) }
+ else { this.readToken(this.fullCharCodeAtPos()); }
+};
+
+pp$8.readToken = function(code) {
+ // Identifier or keyword. '\uXXXX' sequences are allowed in
+ // identifiers, so '\' also dispatches to that.
+ if (isIdentifierStart(code, this.options.ecmaVersion >= 6) || code === 92 /* '\' */)
+ { return this.readWord() }
+
+ return this.getTokenFromCode(code)
+};
+
+pp$8.fullCharCodeAtPos = function() {
+ var code = this.input.charCodeAt(this.pos);
+ if (code <= 0xd7ff || code >= 0xe000) { return code }
+ var next = this.input.charCodeAt(this.pos + 1);
+ return (code << 10) + next - 0x35fdc00
+};
+
+pp$8.skipBlockComment = function() {
+ var this$1 = this;
+
+ var startLoc = this.options.onComment && this.curPosition();
+ var start = this.pos, end = this.input.indexOf("*/", this.pos += 2);
+ if (end === -1) { this.raise(this.pos - 2, "Unterminated comment"); }
+ this.pos = end + 2;
+ if (this.options.locations) {
+ lineBreakG.lastIndex = start;
+ var match;
+ while ((match = lineBreakG.exec(this.input)) && match.index < this.pos) {
+ ++this$1.curLine;
+ this$1.lineStart = match.index + match[0].length;
+ }
+ }
+ if (this.options.onComment)
+ { this.options.onComment(true, this.input.slice(start + 2, end), start, this.pos,
+ startLoc, this.curPosition()); }
+};
+
+pp$8.skipLineComment = function(startSkip) {
+ var this$1 = this;
+
+ var start = this.pos;
+ var startLoc = this.options.onComment && this.curPosition();
+ var ch = this.input.charCodeAt(this.pos += startSkip);
+ while (this.pos < this.input.length && !isNewLine(ch)) {
+ ch = this$1.input.charCodeAt(++this$1.pos);
+ }
+ if (this.options.onComment)
+ { this.options.onComment(false, this.input.slice(start + startSkip, this.pos), start, this.pos,
+ startLoc, this.curPosition()); }
+};
+
+// Called at the start of the parse and after every token. Skips
+// whitespace and comments, and.
+
+pp$8.skipSpace = function() {
+ var this$1 = this;
+
+ loop: while (this.pos < this.input.length) {
+ var ch = this$1.input.charCodeAt(this$1.pos);
+ switch (ch) {
+ case 32: case 160: // ' '
+ ++this$1.pos;
+ break
+ case 13:
+ if (this$1.input.charCodeAt(this$1.pos + 1) === 10) {
+ ++this$1.pos;
+ }
+ case 10: case 8232: case 8233:
+ ++this$1.pos;
+ if (this$1.options.locations) {
+ ++this$1.curLine;
+ this$1.lineStart = this$1.pos;
+ }
+ break
+ case 47: // '/'
+ switch (this$1.input.charCodeAt(this$1.pos + 1)) {
+ case 42: // '*'
+ this$1.skipBlockComment();
+ break
+ case 47:
+ this$1.skipLineComment(2);
+ break
+ default:
+ break loop
+ }
+ break
+ default:
+ if (ch > 8 && ch < 14 || ch >= 5760 && nonASCIIwhitespace.test(String.fromCharCode(ch))) {
+ ++this$1.pos;
+ } else {
+ break loop
+ }
+ }
+ }
+};
+
+// Called at the end of every token. Sets `end`, `val`, and
+// maintains `context` and `exprAllowed`, and skips the space after
+// the token, so that the next one's `start` will point at the
+// right position.
+
+pp$8.finishToken = function(type, val) {
+ this.end = this.pos;
+ if (this.options.locations) { this.endLoc = this.curPosition(); }
+ var prevType = this.type;
+ this.type = type;
+ this.value = val;
+
+ this.updateContext(prevType);
+};
+
+// ### Token reading
+
+// This is the function that is called to fetch the next token. It
+// is somewhat obscure, because it works in character codes rather
+// than characters, and because operator parsing has been inlined
+// into it.
+//
+// All in the name of speed.
+//
+pp$8.readToken_dot = function() {
+ var next = this.input.charCodeAt(this.pos + 1);
+ if (next >= 48 && next <= 57) { return this.readNumber(true) }
+ var next2 = this.input.charCodeAt(this.pos + 2);
+ if (this.options.ecmaVersion >= 6 && next === 46 && next2 === 46) { // 46 = dot '.'
+ this.pos += 3;
+ return this.finishToken(types.ellipsis)
+ } else {
+ ++this.pos;
+ return this.finishToken(types.dot)
+ }
+};
+
+pp$8.readToken_slash = function() { // '/'
+ var next = this.input.charCodeAt(this.pos + 1);
+ if (this.exprAllowed) { ++this.pos; return this.readRegexp() }
+ if (next === 61) { return this.finishOp(types.assign, 2) }
+ return this.finishOp(types.slash, 1)
+};
+
+pp$8.readToken_mult_modulo_exp = function(code) { // '%*'
+ var next = this.input.charCodeAt(this.pos + 1);
+ var size = 1;
+ var tokentype = code === 42 ? types.star : types.modulo;
+
+ // exponentiation operator ** and **=
+ if (this.options.ecmaVersion >= 7 && next === 42) {
+ ++size;
+ tokentype = types.starstar;
+ next = this.input.charCodeAt(this.pos + 2);
+ }
+
+ if (next === 61) { return this.finishOp(types.assign, size + 1) }
+ return this.finishOp(tokentype, size)
+};
+
+pp$8.readToken_pipe_amp = function(code) { // '|&'
+ var next = this.input.charCodeAt(this.pos + 1);
+ if (next === code) { return this.finishOp(code === 124 ? types.logicalOR : types.logicalAND, 2) }
+ if (next === 61) { return this.finishOp(types.assign, 2) }
+ return this.finishOp(code === 124 ? types.bitwiseOR : types.bitwiseAND, 1)
+};
+
+pp$8.readToken_caret = function() { // '^'
+ var next = this.input.charCodeAt(this.pos + 1);
+ if (next === 61) { return this.finishOp(types.assign, 2) }
+ return this.finishOp(types.bitwiseXOR, 1)
+};
+
+pp$8.readToken_plus_min = function(code) { // '+-'
+ var next = this.input.charCodeAt(this.pos + 1);
+ if (next === code) {
+ if (next == 45 && !this.inModule && this.input.charCodeAt(this.pos + 2) == 62 &&
+ (this.lastTokEnd === 0 || lineBreak.test(this.input.slice(this.lastTokEnd, this.pos)))) {
+ // A `-->` line comment
+ this.skipLineComment(3);
+ this.skipSpace();
+ return this.nextToken()
+ }
+ return this.finishOp(types.incDec, 2)
+ }
+ if (next === 61) { return this.finishOp(types.assign, 2) }
+ return this.finishOp(types.plusMin, 1)
+};
+
+pp$8.readToken_lt_gt = function(code) { // '<>'
+ var next = this.input.charCodeAt(this.pos + 1);
+ var size = 1;
+ if (next === code) {
+ size = code === 62 && this.input.charCodeAt(this.pos + 2) === 62 ? 3 : 2;
+ if (this.input.charCodeAt(this.pos + size) === 61) { return this.finishOp(types.assign, size + 1) }
+ return this.finishOp(types.bitShift, size)
+ }
+ if (next == 33 && code == 60 && !this.inModule && this.input.charCodeAt(this.pos + 2) == 45 &&
+ this.input.charCodeAt(this.pos + 3) == 45) {
+ // `<!--`, an XML-style comment that should be interpreted as a line comment
+ this.skipLineComment(4);
+ this.skipSpace();
+ return this.nextToken()
+ }
+ if (next === 61) { size = 2; }
+ return this.finishOp(types.relational, size)
+};
+
+pp$8.readToken_eq_excl = function(code) { // '=!'
+ var next = this.input.charCodeAt(this.pos + 1);
+ if (next === 61) { return this.finishOp(types.equality, this.input.charCodeAt(this.pos + 2) === 61 ? 3 : 2) }
+ if (code === 61 && next === 62 && this.options.ecmaVersion >= 6) { // '=>'
+ this.pos += 2;
+ return this.finishToken(types.arrow)
+ }
+ return this.finishOp(code === 61 ? types.eq : types.prefix, 1)
+};
+
+pp$8.getTokenFromCode = function(code) {
+ switch (code) {
+ // The interpretation of a dot depends on whether it is followed
+ // by a digit or another two dots.
+ case 46: // '.'
+ return this.readToken_dot()
+
+ // Punctuation tokens.
+ case 40: ++this.pos; return this.finishToken(types.parenL)
+ case 41: ++this.pos; return this.finishToken(types.parenR)
+ case 59: ++this.pos; return this.finishToken(types.semi)
+ case 44: ++this.pos; return this.finishToken(types.comma)
+ case 91: ++this.pos; return this.finishToken(types.bracketL)
+ case 93: ++this.pos; return this.finishToken(types.bracketR)
+ case 123: ++this.pos; return this.finishToken(types.braceL)
+ case 125: ++this.pos; return this.finishToken(types.braceR)
+ case 58: ++this.pos; return this.finishToken(types.colon)
+ case 63: ++this.pos; return this.finishToken(types.question)
+
+ case 96: // '`'
+ if (this.options.ecmaVersion < 6) { break }
+ ++this.pos;
+ return this.finishToken(types.backQuote)
+
+ case 48: // '0'
+ var next = this.input.charCodeAt(this.pos + 1);
+ if (next === 120 || next === 88) { return this.readRadixNumber(16) } // '0x', '0X' - hex number
+ if (this.options.ecmaVersion >= 6) {
+ if (next === 111 || next === 79) { return this.readRadixNumber(8) } // '0o', '0O' - octal number
+ if (next === 98 || next === 66) { return this.readRadixNumber(2) } // '0b', '0B' - binary number
+ }
+ // Anything else beginning with a digit is an integer, octal
+ // number, or float.
+ case 49: case 50: case 51: case 52: case 53: case 54: case 55: case 56: case 57: // 1-9
+ return this.readNumber(false)
+
+ // Quotes produce strings.
+ case 34: case 39: // '"', "'"
+ return this.readString(code)
+
+ // Operators are parsed inline in tiny state machines. '=' (61) is
+ // often referred to. `finishOp` simply skips the amount of
+ // characters it is given as second argument, and returns a token
+ // of the type given by its first argument.
+
+ case 47: // '/'
+ return this.readToken_slash()
+
+ case 37: case 42: // '%*'
+ return this.readToken_mult_modulo_exp(code)
+
+ case 124: case 38: // '|&'
+ return this.readToken_pipe_amp(code)
+
+ case 94: // '^'
+ return this.readToken_caret()
+
+ case 43: case 45: // '+-'
+ return this.readToken_plus_min(code)
+
+ case 60: case 62: // '<>'
+ return this.readToken_lt_gt(code)
+
+ case 61: case 33: // '=!'
+ return this.readToken_eq_excl(code)
+
+ case 126: // '~'
+ return this.finishOp(types.prefix, 1)
+ }
+
+ this.raise(this.pos, "Unexpected character '" + codePointToString(code) + "'");
+};
+
+pp$8.finishOp = function(type, size) {
+ var str = this.input.slice(this.pos, this.pos + size);
+ this.pos += size;
+ return this.finishToken(type, str)
+};
+
+// Parse a regular expression. Some context-awareness is necessary,
+// since a '/' inside a '[]' set does not end the expression.
+
+function tryCreateRegexp(src, flags, throwErrorAt, parser) {
+ try {
+ return new RegExp(src, flags)
+ } catch (e) {
+ if (throwErrorAt !== undefined) {
+ if (e instanceof SyntaxError) { parser.raise(throwErrorAt, "Error parsing regular expression: " + e.message); }
+ throw e
+ }
+ }
+}
+
+var regexpUnicodeSupport = !!tryCreateRegexp("\uffff", "u");
+
+pp$8.readRegexp = function() {
+ var this$1 = this;
+
+ var escaped, inClass, start = this.pos;
+ for (;;) {
+ if (this$1.pos >= this$1.input.length) { this$1.raise(start, "Unterminated regular expression"); }
+ var ch = this$1.input.charAt(this$1.pos);
+ if (lineBreak.test(ch)) { this$1.raise(start, "Unterminated regular expression"); }
+ if (!escaped) {
+ if (ch === "[") { inClass = true; }
+ else if (ch === "]" && inClass) { inClass = false; }
+ else if (ch === "/" && !inClass) { break }
+ escaped = ch === "\\";
+ } else { escaped = false; }
+ ++this$1.pos;
+ }
+ var content = this.input.slice(start, this.pos);
+ ++this.pos;
+ // Need to use `readWord1` because '\uXXXX' sequences are allowed
+ // here (don't ask).
+ var mods = this.readWord1();
+ var tmp = content, tmpFlags = "";
+ if (mods) {
+ var validFlags = /^[gim]*$/;
+ if (this.options.ecmaVersion >= 6) { validFlags = /^[gimuy]*$/; }
+ if (!validFlags.test(mods)) { this.raise(start, "Invalid regular expression flag"); }
+ if (mods.indexOf("u") >= 0) {
+ if (regexpUnicodeSupport) {
+ tmpFlags = "u";
+ } else {
+ // Replace each astral symbol and every Unicode escape sequence that
+ // possibly represents an astral symbol or a paired surrogate with a
+ // single ASCII symbol to avoid throwing on regular expressions that
+ // are only valid in combination with the `/u` flag.
+ // Note: replacing with the ASCII symbol `x` might cause false
+ // negatives in unlikely scenarios. For example, `[\u{61}-b]` is a
+ // perfectly valid pattern that is equivalent to `[a-b]`, but it would
+ // be replaced by `[x-b]` which throws an error.
+ tmp = tmp.replace(/\\u\{([0-9a-fA-F]+)\}/g, function (_match, code, offset) {
+ code = Number("0x" + code);
+ if (code > 0x10FFFF) { this$1.raise(start + offset + 3, "Code point out of bounds"); }
+ return "x"
+ });
+ tmp = tmp.replace(/\\u([a-fA-F0-9]{4})|[\uD800-\uDBFF][\uDC00-\uDFFF]/g, "x");
+ tmpFlags = tmpFlags.replace("u", "");
+ }
+ }
+ }
+ // Detect invalid regular expressions.
+ var value = null;
+ // Rhino's regular expression parser is flaky and throws uncatchable exceptions,
+ // so don't do detection if we are running under Rhino
+ if (!isRhino) {
+ tryCreateRegexp(tmp, tmpFlags, start, this);
+ // Get a regular expression object for this pattern-flag pair, or `null` in
+ // case the current environment doesn't support the flags it uses.
+ value = tryCreateRegexp(content, mods);
+ }
+ return this.finishToken(types.regexp, {pattern: content, flags: mods, value: value})
+};
+
+// Read an integer in the given radix. Return null if zero digits
+// were read, the integer value otherwise. When `len` is given, this
+// will return `null` unless the integer has exactly `len` digits.
+
+pp$8.readInt = function(radix, len) {
+ var this$1 = this;
+
+ var start = this.pos, total = 0;
+ for (var i = 0, e = len == null ? Infinity : len; i < e; ++i) {
+ var code = this$1.input.charCodeAt(this$1.pos), val = (void 0);
+ if (code >= 97) { val = code - 97 + 10; } // a
+ else if (code >= 65) { val = code - 65 + 10; } // A
+ else if (code >= 48 && code <= 57) { val = code - 48; } // 0-9
+ else { val = Infinity; }
+ if (val >= radix) { break }
+ ++this$1.pos;
+ total = total * radix + val;
+ }
+ if (this.pos === start || len != null && this.pos - start !== len) { return null }
+
+ return total
+};
+
+pp$8.readRadixNumber = function(radix) {
+ this.pos += 2; // 0x
+ var val = this.readInt(radix);
+ if (val == null) { this.raise(this.start + 2, "Expected number in radix " + radix); }
+ if (isIdentifierStart(this.fullCharCodeAtPos())) { this.raise(this.pos, "Identifier directly after number"); }
+ return this.finishToken(types.num, val)
+};
+
+// Read an integer, octal integer, or floating-point number.
+
+pp$8.readNumber = function(startsWithDot) {
+ var start = this.pos, isFloat = false, octal = this.input.charCodeAt(this.pos) === 48;
+ if (!startsWithDot && this.readInt(10) === null) { this.raise(start, "Invalid number"); }
+ if (octal && this.pos == start + 1) { octal = false; }
+ var next = this.input.charCodeAt(this.pos);
+ if (next === 46 && !octal) { // '.'
+ ++this.pos;
+ this.readInt(10);
+ isFloat = true;
+ next = this.input.charCodeAt(this.pos);
+ }
+ if ((next === 69 || next === 101) && !octal) { // 'eE'
+ next = this.input.charCodeAt(++this.pos);
+ if (next === 43 || next === 45) { ++this.pos; } // '+-'
+ if (this.readInt(10) === null) { this.raise(start, "Invalid number"); }
+ isFloat = true;
+ }
+ if (isIdentifierStart(this.fullCharCodeAtPos())) { this.raise(this.pos, "Identifier directly after number"); }
+
+ var str = this.input.slice(start, this.pos), val;
+ if (isFloat) { val = parseFloat(str); }
+ else if (!octal || str.length === 1) { val = parseInt(str, 10); }
+ else if (this.strict) { this.raise(start, "Invalid number"); }
+ else if (/[89]/.test(str)) { val = parseInt(str, 10); }
+ else { val = parseInt(str, 8); }
+ return this.finishToken(types.num, val)
+};
+
+// Read a string value, interpreting backslash-escapes.
+
+pp$8.readCodePoint = function() {
+ var ch = this.input.charCodeAt(this.pos), code;
+
+ if (ch === 123) { // '{'
+ if (this.options.ecmaVersion < 6) { this.unexpected(); }
+ var codePos = ++this.pos;
+ code = this.readHexChar(this.input.indexOf("}", this.pos) - this.pos);
+ ++this.pos;
+ if (code > 0x10FFFF) { this.invalidStringToken(codePos, "Code point out of bounds"); }
+ } else {
+ code = this.readHexChar(4);
+ }
+ return code
+};
+
+function codePointToString(code) {
+ // UTF-16 Decoding
+ if (code <= 0xFFFF) { return String.fromCharCode(code) }
+ code -= 0x10000;
+ return String.fromCharCode((code >> 10) + 0xD800, (code & 1023) + 0xDC00)
+}
+
+pp$8.readString = function(quote) {
+ var this$1 = this;
+
+ var out = "", chunkStart = ++this.pos;
+ for (;;) {
+ if (this$1.pos >= this$1.input.length) { this$1.raise(this$1.start, "Unterminated string constant"); }
+ var ch = this$1.input.charCodeAt(this$1.pos);
+ if (ch === quote) { break }
+ if (ch === 92) { // '\'
+ out += this$1.input.slice(chunkStart, this$1.pos);
+ out += this$1.readEscapedChar(false);
+ chunkStart = this$1.pos;
+ } else {
+ if (isNewLine(ch)) { this$1.raise(this$1.start, "Unterminated string constant"); }
+ ++this$1.pos;
+ }
+ }
+ out += this.input.slice(chunkStart, this.pos++);
+ return this.finishToken(types.string, out)
+};
+
+// Reads template string tokens.
+
+var INVALID_TEMPLATE_ESCAPE_ERROR = {};
+
+pp$8.tryReadTemplateToken = function() {
+ this.inTemplateElement = true;
+ try {
+ this.readTmplToken();
+ } catch (err) {
+ if (err === INVALID_TEMPLATE_ESCAPE_ERROR) {
+ this.readInvalidTemplateToken();
+ } else {
+ throw err
+ }
+ }
+
+ this.inTemplateElement = false;
+};
+
+pp$8.invalidStringToken = function(position, message) {
+ if (this.inTemplateElement && this.options.ecmaVersion >= 9) {
+ throw INVALID_TEMPLATE_ESCAPE_ERROR
+ } else {
+ this.raise(position, message);
+ }
+};
+
+pp$8.readTmplToken = function() {
+ var this$1 = this;
+
+ var out = "", chunkStart = this.pos;
+ for (;;) {
+ if (this$1.pos >= this$1.input.length) { this$1.raise(this$1.start, "Unterminated template"); }
+ var ch = this$1.input.charCodeAt(this$1.pos);
+ if (ch === 96 || ch === 36 && this$1.input.charCodeAt(this$1.pos + 1) === 123) { // '`', '${'
+ if (this$1.pos === this$1.start && (this$1.type === types.template || this$1.type === types.invalidTemplate)) {
+ if (ch === 36) {
+ this$1.pos += 2;
+ return this$1.finishToken(types.dollarBraceL)
+ } else {
+ ++this$1.pos;
+ return this$1.finishToken(types.backQuote)
+ }
+ }
+ out += this$1.input.slice(chunkStart, this$1.pos);
+ return this$1.finishToken(types.template, out)
+ }
+ if (ch === 92) { // '\'
+ out += this$1.input.slice(chunkStart, this$1.pos);
+ out += this$1.readEscapedChar(true);
+ chunkStart = this$1.pos;
+ } else if (isNewLine(ch)) {
+ out += this$1.input.slice(chunkStart, this$1.pos);
+ ++this$1.pos;
+ switch (ch) {
+ case 13:
+ if (this$1.input.charCodeAt(this$1.pos) === 10) { ++this$1.pos; }
+ case 10:
+ out += "\n";
+ break
+ default:
+ out += String.fromCharCode(ch);
+ break
+ }
+ if (this$1.options.locations) {
+ ++this$1.curLine;
+ this$1.lineStart = this$1.pos;
+ }
+ chunkStart = this$1.pos;
+ } else {
+ ++this$1.pos;
+ }
+ }
+};
+
+// Reads a template token to search for the end, without validating any escape sequences
+pp$8.readInvalidTemplateToken = function() {
+ var this$1 = this;
+
+ for (; this.pos < this.input.length; this.pos++) {
+ switch (this$1.input[this$1.pos]) {
+ case "\\":
+ ++this$1.pos;
+ break
+
+ case "$":
+ if (this$1.input[this$1.pos + 1] !== "{") {
+ break
+ }
+ // falls through
+
+ case "`":
+ return this$1.finishToken(types.invalidTemplate, this$1.input.slice(this$1.start, this$1.pos))
+
+ // no default
+ }
+ }
+ this.raise(this.start, "Unterminated template");
+};
+
+// Used to read escaped characters
+
+pp$8.readEscapedChar = function(inTemplate) {
+ var ch = this.input.charCodeAt(++this.pos);
+ ++this.pos;
+ switch (ch) {
+ case 110: return "\n" // 'n' -> '\n'
+ case 114: return "\r" // 'r' -> '\r'
+ case 120: return String.fromCharCode(this.readHexChar(2)) // 'x'
+ case 117: return codePointToString(this.readCodePoint()) // 'u'
+ case 116: return "\t" // 't' -> '\t'
+ case 98: return "\b" // 'b' -> '\b'
+ case 118: return "\u000b" // 'v' -> '\u000b'
+ case 102: return "\f" // 'f' -> '\f'
+ case 13: if (this.input.charCodeAt(this.pos) === 10) { ++this.pos; } // '\r\n'
+ case 10: // ' \n'
+ if (this.options.locations) { this.lineStart = this.pos; ++this.curLine; }
+ return ""
+ default:
+ if (ch >= 48 && ch <= 55) {
+ var octalStr = this.input.substr(this.pos - 1, 3).match(/^[0-7]+/)[0];
+ var octal = parseInt(octalStr, 8);
+ if (octal > 255) {
+ octalStr = octalStr.slice(0, -1);
+ octal = parseInt(octalStr, 8);
+ }
+ if (octalStr !== "0" && (this.strict || inTemplate)) {
+ this.invalidStringToken(this.pos - 2, "Octal literal in strict mode");
+ }
+ this.pos += octalStr.length - 1;
+ return String.fromCharCode(octal)
+ }
+ return String.fromCharCode(ch)
+ }
+};
+
+// Used to read character escape sequences ('\x', '\u', '\U').
+
+pp$8.readHexChar = function(len) {
+ var codePos = this.pos;
+ var n = this.readInt(16, len);
+ if (n === null) { this.invalidStringToken(codePos, "Bad character escape sequence"); }
+ return n
+};
+
+// Read an identifier, and return it as a string. Sets `this.containsEsc`
+// to whether the word contained a '\u' escape.
+//
+// Incrementally adds only escaped chars, adding other chunks as-is
+// as a micro-optimization.
+
+pp$8.readWord1 = function() {
+ var this$1 = this;
+
+ this.containsEsc = false;
+ var word = "", first = true, chunkStart = this.pos;
+ var astral = this.options.ecmaVersion >= 6;
+ while (this.pos < this.input.length) {
+ var ch = this$1.fullCharCodeAtPos();
+ if (isIdentifierChar(ch, astral)) {
+ this$1.pos += ch <= 0xffff ? 1 : 2;
+ } else if (ch === 92) { // "\"
+ this$1.containsEsc = true;
+ word += this$1.input.slice(chunkStart, this$1.pos);
+ var escStart = this$1.pos;
+ if (this$1.input.charCodeAt(++this$1.pos) != 117) // "u"
+ { this$1.invalidStringToken(this$1.pos, "Expecting Unicode escape sequence \\uXXXX"); }
+ ++this$1.pos;
+ var esc = this$1.readCodePoint();
+ if (!(first ? isIdentifierStart : isIdentifierChar)(esc, astral))
+ { this$1.invalidStringToken(escStart, "Invalid Unicode escape"); }
+ word += codePointToString(esc);
+ chunkStart = this$1.pos;
+ } else {
+ break
+ }
+ first = false;
+ }
+ return word + this.input.slice(chunkStart, this.pos)
+};
+
+// Read an identifier or keyword token. Will check for reserved
+// words when necessary.
+
+pp$8.readWord = function() {
+ var word = this.readWord1();
+ var type = types.name;
+ if (this.keywords.test(word)) {
+ if (this.containsEsc) { this.raiseRecoverable(this.start, "Escape sequence in keyword " + word); }
+ type = keywords$1[word];
+ }
+ return this.finishToken(type, word)
+};
+
+// Acorn is a tiny, fast JavaScript parser written in JavaScript.
+//
+// Acorn was written by Marijn Haverbeke, Ingvar Stepanyan, and
+// various contributors and released under an MIT license.
+//
+// Git repositories for Acorn are available at
+//
+// http://marijnhaverbeke.nl/git/acorn
+// https://github.com/ternjs/acorn.git
+//
+// Please use the [github bug tracker][ghbt] to report issues.
+//
+// [ghbt]: https://github.com/ternjs/acorn/issues
+//
+// This file defines the main parser interface. The library also comes
+// with a [error-tolerant parser][dammit] and an
+// [abstract syntax tree walker][walk], defined in other files.
+//
+// [dammit]: acorn_loose.js
+// [walk]: util/walk.js
+
+var version = "5.1.2";
+
+// The main exported interface (under `self.acorn` when in the
+// browser) is a `parse` function that takes a code string and
+// returns an abstract syntax tree as specified by [Mozilla parser
+// API][api].
+//
+// [api]: https://developer.mozilla.org/en-US/docs/SpiderMonkey/Parser_API
+
+function parse(input, options) {
+ return new Parser(options, input).parse()
+}
+
+// This function tries to parse a single expression at a given
+// offset in a string. Useful for parsing mixed-language formats
+// that embed JavaScript expressions.
+
+function parseExpressionAt(input, pos, options) {
+ var p = new Parser(options, input, pos);
+ p.nextToken();
+ return p.parseExpression()
+}
+
+// Acorn is organized as a tokenizer and a recursive-descent parser.
+// The `tokenizer` export provides an interface to the tokenizer.
+
+function tokenizer(input, options) {
+ return new Parser(options, input)
+}
+
+// This is a terrible kludge to support the existing, pre-ES6
+// interface where the loose parser module retroactively adds exports
+// to this module.
+ // eslint-disable-line camelcase
+function addLooseExports(parse, Parser$$1, plugins$$1) {
+ exports.parse_dammit = parse; // eslint-disable-line camelcase
+ exports.LooseParser = Parser$$1;
+ exports.pluginsLoose = plugins$$1;
+}
+
+exports.version = version;
+exports.parse = parse;
+exports.parseExpressionAt = parseExpressionAt;
+exports.tokenizer = tokenizer;
+exports.addLooseExports = addLooseExports;
+exports.Parser = Parser;
+exports.plugins = plugins;
+exports.defaultOptions = defaultOptions;
+exports.Position = Position;
+exports.SourceLocation = SourceLocation;
+exports.getLineInfo = getLineInfo;
+exports.Node = Node;
+exports.TokenType = TokenType;
+exports.tokTypes = types;
+exports.keywordTypes = keywords$1;
+exports.TokContext = TokContext;
+exports.tokContexts = types$1;
+exports.isIdentifierChar = isIdentifierChar;
+exports.isIdentifierStart = isIdentifierStart;
+exports.Token = Token;
+exports.isNewLine = isNewLine;
+exports.lineBreak = lineBreak;
+exports.lineBreakG = lineBreakG;
+exports.nonASCIIwhitespace = nonASCIIwhitespace;
+
+Object.defineProperty(exports, '__esModule', { value: true });
+
+})));
+
+},{}],3:[function(require,module,exports){
+(function (global, factory) {
+ typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports, require('./acorn')) :
+ typeof define === 'function' && define.amd ? define(['exports', './acorn'], factory) :
+ (factory((global.acorn = global.acorn || {}, global.acorn.loose = global.acorn.loose || {}),global.acorn));
+}(this, (function (exports,__acorn) { 'use strict';
+
+// Registered plugins
+var pluginsLoose = {};
+
+var LooseParser = function LooseParser(input, options) {
+ if ( options === void 0 ) options = {};
+
+ this.toks = __acorn.tokenizer(input, options);
+ this.options = this.toks.options;
+ this.input = this.toks.input;
+ this.tok = this.last = {type: __acorn.tokTypes.eof, start: 0, end: 0};
+ if (this.options.locations) {
+ var here = this.toks.curPosition();
+ this.tok.loc = new __acorn.SourceLocation(this.toks, here, here);
+ }
+ this.ahead = []; // Tokens ahead
+ this.context = []; // Indentation contexted
+ this.curIndent = 0;
+ this.curLineStart = 0;
+ this.nextLineStart = this.lineEnd(this.curLineStart) + 1;
+ this.inAsync = false;
+ // Load plugins
+ this.options.pluginsLoose = options.pluginsLoose || {};
+ this.loadPlugins(this.options.pluginsLoose);
+};
+
+LooseParser.prototype.startNode = function startNode () {
+ return new __acorn.Node(this.toks, this.tok.start, this.options.locations ? this.tok.loc.start : null)
+};
+
+LooseParser.prototype.storeCurrentPos = function storeCurrentPos () {
+ return this.options.locations ? [this.tok.start, this.tok.loc.start] : this.tok.start
+};
+
+LooseParser.prototype.startNodeAt = function startNodeAt (pos) {
+ if (this.options.locations) {
+ return new __acorn.Node(this.toks, pos[0], pos[1])
+ } else {
+ return new __acorn.Node(this.toks, pos)
+ }
+};
+
+LooseParser.prototype.finishNode = function finishNode (node, type) {
+ node.type = type;
+ node.end = this.last.end;
+ if (this.options.locations)
+ { node.loc.end = this.last.loc.end; }
+ if (this.options.ranges)
+ { node.range[1] = this.last.end; }
+ return node
+};
+
+LooseParser.prototype.dummyNode = function dummyNode (type) {
+ var dummy = this.startNode();
+ dummy.type = type;
+ dummy.end = dummy.start;
+ if (this.options.locations)
+ { dummy.loc.end = dummy.loc.start; }
+ if (this.options.ranges)
+ { dummy.range[1] = dummy.start; }
+ this.last = {type: __acorn.tokTypes.name, start: dummy.start, end: dummy.start, loc: dummy.loc};
+ return dummy
+};
+
+LooseParser.prototype.dummyIdent = function dummyIdent () {
+ var dummy = this.dummyNode("Identifier");
+ dummy.name = "✖";
+ return dummy
+};
+
+LooseParser.prototype.dummyString = function dummyString () {
+ var dummy = this.dummyNode("Literal");
+ dummy.value = dummy.raw = "✖";
+ return dummy
+};
+
+LooseParser.prototype.eat = function eat (type) {
+ if (this.tok.type === type) {
+ this.next();
+ return true
+ } else {
+ return false
+ }
+};
+
+LooseParser.prototype.isContextual = function isContextual (name) {
+ return this.tok.type === __acorn.tokTypes.name && this.tok.value === name
+};
+
+LooseParser.prototype.eatContextual = function eatContextual (name) {
+ return this.tok.value === name && this.eat(__acorn.tokTypes.name)
+};
+
+LooseParser.prototype.canInsertSemicolon = function canInsertSemicolon () {
+ return this.tok.type === __acorn.tokTypes.eof || this.tok.type === __acorn.tokTypes.braceR ||
+ __acorn.lineBreak.test(this.input.slice(this.last.end, this.tok.start))
+};
+
+LooseParser.prototype.semicolon = function semicolon () {
+ return this.eat(__acorn.tokTypes.semi)
+};
+
+LooseParser.prototype.expect = function expect (type) {
+ var this$1 = this;
+
+ if (this.eat(type)) { return true }
+ for (var i = 1; i <= 2; i++) {
+ if (this$1.lookAhead(i).type == type) {
+ for (var j = 0; j < i; j++) { this$1.next(); }
+ return true
+ }
+ }
+};
+
+LooseParser.prototype.pushCx = function pushCx () {
+ this.context.push(this.curIndent);
+};
+
+LooseParser.prototype.popCx = function popCx () {
+ this.curIndent = this.context.pop();
+};
+
+LooseParser.prototype.lineEnd = function lineEnd (pos) {
+ while (pos < this.input.length && !__acorn.isNewLine(this.input.charCodeAt(pos))) { ++pos; }
+ return pos
+};
+
+LooseParser.prototype.indentationAfter = function indentationAfter (pos) {
+ var this$1 = this;
+
+ for (var count = 0;; ++pos) {
+ var ch = this$1.input.charCodeAt(pos);
+ if (ch === 32) { ++count; }
+ else if (ch === 9) { count += this$1.options.tabSize; }
+ else { return count }
+ }
+};
+
+LooseParser.prototype.closes = function closes (closeTok, indent, line, blockHeuristic) {
+ if (this.tok.type === closeTok || this.tok.type === __acorn.tokTypes.eof) { return true }
+ return line != this.curLineStart && this.curIndent < indent && this.tokenStartsLine() &&
+ (!blockHeuristic || this.nextLineStart >= this.input.length ||
+ this.indentationAfter(this.nextLineStart) < indent)
+};
+
+LooseParser.prototype.tokenStartsLine = function tokenStartsLine () {
+ var this$1 = this;
+
+ for (var p = this.tok.start - 1; p >= this.curLineStart; --p) {
+ var ch = this$1.input.charCodeAt(p);
+ if (ch !== 9 && ch !== 32) { return false }
+ }
+ return true
+};
+
+LooseParser.prototype.extend = function extend (name, f) {
+ this[name] = f(this[name]);
+};
+
+LooseParser.prototype.loadPlugins = function loadPlugins (pluginConfigs) {
+ var this$1 = this;
+
+ for (var name in pluginConfigs) {
+ var plugin = pluginsLoose[name];
+ if (!plugin) { throw new Error("Plugin '" + name + "' not found") }
+ plugin(this$1, pluginConfigs[name]);
+ }
+};
+
+LooseParser.prototype.parse = function parse () {
+ this.next();
+ return this.parseTopLevel()
+};
+
+var lp = LooseParser.prototype;
+
+function isSpace(ch) {
+ return (ch < 14 && ch > 8) || ch === 32 || ch === 160 || __acorn.isNewLine(ch)
+}
+
+lp.next = function() {
+ var this$1 = this;
+
+ this.last = this.tok;
+ if (this.ahead.length)
+ { this.tok = this.ahead.shift(); }
+ else
+ { this.tok = this.readToken(); }
+
+ if (this.tok.start >= this.nextLineStart) {
+ while (this.tok.start >= this.nextLineStart) {
+ this$1.curLineStart = this$1.nextLineStart;
+ this$1.nextLineStart = this$1.lineEnd(this$1.curLineStart) + 1;
+ }
+ this.curIndent = this.indentationAfter(this.curLineStart);
+ }
+};
+
+lp.readToken = function() {
+ var this$1 = this;
+
+ for (;;) {
+ try {
+ this$1.toks.next();
+ if (this$1.toks.type === __acorn.tokTypes.dot &&
+ this$1.input.substr(this$1.toks.end, 1) === "." &&
+ this$1.options.ecmaVersion >= 6) {
+ this$1.toks.end++;
+ this$1.toks.type = __acorn.tokTypes.ellipsis;
+ }
+ return new __acorn.Token(this$1.toks)
+ } catch (e) {
+ if (!(e instanceof SyntaxError)) { throw e }
+
+ // Try to skip some text, based on the error message, and then continue
+ var msg = e.message, pos = e.raisedAt, replace = true;
+ if (/unterminated/i.test(msg)) {
+ pos = this$1.lineEnd(e.pos + 1);
+ if (/string/.test(msg)) {
+ replace = {start: e.pos, end: pos, type: __acorn.tokTypes.string, value: this$1.input.slice(e.pos + 1, pos)};
+ } else if (/regular expr/i.test(msg)) {
+ var re = this$1.input.slice(e.pos, pos);
+ try { re = new RegExp(re); } catch (e) { /* ignore compilation error due to new syntax */ }
+ replace = {start: e.pos, end: pos, type: __acorn.tokTypes.regexp, value: re};
+ } else if (/template/.test(msg)) {
+ replace = {
+ start: e.pos,
+ end: pos,
+ type: __acorn.tokTypes.template,
+ value: this$1.input.slice(e.pos, pos)
+ };
+ } else {
+ replace = false;
+ }
+ } else if (/invalid (unicode|regexp|number)|expecting unicode|octal literal|is reserved|directly after number|expected number in radix/i.test(msg)) {
+ while (pos < this.input.length && !isSpace(this.input.charCodeAt(pos))) { ++pos; }
+ } else if (/character escape|expected hexadecimal/i.test(msg)) {
+ while (pos < this.input.length) {
+ var ch = this$1.input.charCodeAt(pos++);
+ if (ch === 34 || ch === 39 || __acorn.isNewLine(ch)) { break }
+ }
+ } else if (/unexpected character/i.test(msg)) {
+ pos++;
+ replace = false;
+ } else if (/regular expression/i.test(msg)) {
+ replace = true;
+ } else {
+ throw e
+ }
+ this$1.resetTo(pos);
+ if (replace === true) { replace = {start: pos, end: pos, type: __acorn.tokTypes.name, value: "✖"}; }
+ if (replace) {
+ if (this$1.options.locations)
+ { replace.loc = new __acorn.SourceLocation(
+ this$1.toks,
+ __acorn.getLineInfo(this$1.input, replace.start),
+ __acorn.getLineInfo(this$1.input, replace.end)); }
+ return replace
+ }
+ }
+ }
+};
+
+lp.resetTo = function(pos) {
+ var this$1 = this;
+
+ this.toks.pos = pos;
+ var ch = this.input.charAt(pos - 1);
+ this.toks.exprAllowed = !ch || /[[{(,;:?/*=+\-~!|&%^<>]/.test(ch) ||
+ /[enwfd]/.test(ch) &&
+ /\b(keywords|case|else|return|throw|new|in|(instance|type)of|delete|void)$/.test(this.input.slice(pos - 10, pos));
+
+ if (this.options.locations) {
+ this.toks.curLine = 1;
+ this.toks.lineStart = __acorn.lineBreakG.lastIndex = 0;
+ var match;
+ while ((match = __acorn.lineBreakG.exec(this.input)) && match.index < pos) {
+ ++this$1.toks.curLine;
+ this$1.toks.lineStart = match.index + match[0].length;
+ }
+ }
+};
+
+lp.lookAhead = function(n) {
+ var this$1 = this;
+
+ while (n > this.ahead.length)
+ { this$1.ahead.push(this$1.readToken()); }
+ return this.ahead[n - 1]
+};
+
+function isDummy(node) { return node.name == "✖" }
+
+var lp$1 = LooseParser.prototype;
+
+lp$1.parseTopLevel = function() {
+ var this$1 = this;
+
+ var node = this.startNodeAt(this.options.locations ? [0, __acorn.getLineInfo(this.input, 0)] : 0);
+ node.body = [];
+ while (this.tok.type !== __acorn.tokTypes.eof) { node.body.push(this$1.parseStatement()); }
+ this.last = this.tok;
+ if (this.options.ecmaVersion >= 6) {
+ node.sourceType = this.options.sourceType;
+ }
+ return this.finishNode(node, "Program")
+};
+
+lp$1.parseStatement = function() {
+ var this$1 = this;
+
+ var starttype = this.tok.type, node = this.startNode(), kind;
+
+ if (this.toks.isLet()) {
+ starttype = __acorn.tokTypes._var;
+ kind = "let";
+ }
+
+ switch (starttype) {
+ case __acorn.tokTypes._break: case __acorn.tokTypes._continue:
+ this.next();
+ var isBreak = starttype === __acorn.tokTypes._break;
+ if (this.semicolon() || this.canInsertSemicolon()) {
+ node.label = null;
+ } else {
+ node.label = this.tok.type === __acorn.tokTypes.name ? this.parseIdent() : null;
+ this.semicolon();
+ }
+ return this.finishNode(node, isBreak ? "BreakStatement" : "ContinueStatement")
+
+ case __acorn.tokTypes._debugger:
+ this.next();
+ this.semicolon();
+ return this.finishNode(node, "DebuggerStatement")
+
+ case __acorn.tokTypes._do:
+ this.next();
+ node.body = this.parseStatement();
+ node.test = this.eat(__acorn.tokTypes._while) ? this.parseParenExpression() : this.dummyIdent();
+ this.semicolon();
+ return this.finishNode(node, "DoWhileStatement")
+
+ case __acorn.tokTypes._for:
+ this.next();
+ this.pushCx();
+ this.expect(__acorn.tokTypes.parenL);
+ if (this.tok.type === __acorn.tokTypes.semi) { return this.parseFor(node, null) }
+ var isLet = this.toks.isLet();
+ if (isLet || this.tok.type === __acorn.tokTypes._var || this.tok.type === __acorn.tokTypes._const) {
+ var init$1 = this.parseVar(true, isLet ? "let" : this.tok.value);
+ if (init$1.declarations.length === 1 && (this.tok.type === __acorn.tokTypes._in || this.isContextual("of"))) {
+ return this.parseForIn(node, init$1)
+ }
+ return this.parseFor(node, init$1)
+ }
+ var init = this.parseExpression(true);
+ if (this.tok.type === __acorn.tokTypes._in || this.isContextual("of"))
+ { return this.parseForIn(node, this.toAssignable(init)) }
+ return this.parseFor(node, init)
+
+ case __acorn.tokTypes._function:
+ this.next();
+ return this.parseFunction(node, true)
+
+ case __acorn.tokTypes._if:
+ this.next();
+ node.test = this.parseParenExpression();
+ node.consequent = this.parseStatement();
+ node.alternate = this.eat(__acorn.tokTypes._else) ? this.parseStatement() : null;
+ return this.finishNode(node, "IfStatement")
+
+ case __acorn.tokTypes._return:
+ this.next();
+ if (this.eat(__acorn.tokTypes.semi) || this.canInsertSemicolon()) { node.argument = null; }
+ else { node.argument = this.parseExpression(); this.semicolon(); }
+ return this.finishNode(node, "ReturnStatement")
+
+ case __acorn.tokTypes._switch:
+ var blockIndent = this.curIndent, line = this.curLineStart;
+ this.next();
+ node.discriminant = this.parseParenExpression();
+ node.cases = [];
+ this.pushCx();
+ this.expect(__acorn.tokTypes.braceL);
+
+ var cur;
+ while (!this.closes(__acorn.tokTypes.braceR, blockIndent, line, true)) {
+ if (this$1.tok.type === __acorn.tokTypes._case || this$1.tok.type === __acorn.tokTypes._default) {
+ var isCase = this$1.tok.type === __acorn.tokTypes._case;
+ if (cur) { this$1.finishNode(cur, "SwitchCase"); }
+ node.cases.push(cur = this$1.startNode());
+ cur.consequent = [];
+ this$1.next();
+ if (isCase) { cur.test = this$1.parseExpression(); }
+ else { cur.test = null; }
+ this$1.expect(__acorn.tokTypes.colon);
+ } else {
+ if (!cur) {
+ node.cases.push(cur = this$1.startNode());
+ cur.consequent = [];
+ cur.test = null;
+ }
+ cur.consequent.push(this$1.parseStatement());
+ }
+ }
+ if (cur) { this.finishNode(cur, "SwitchCase"); }
+ this.popCx();
+ this.eat(__acorn.tokTypes.braceR);
+ return this.finishNode(node, "SwitchStatement")
+
+ case __acorn.tokTypes._throw:
+ this.next();
+ node.argument = this.parseExpression();
+ this.semicolon();
+ return this.finishNode(node, "ThrowStatement")
+
+ case __acorn.tokTypes._try:
+ this.next();
+ node.block = this.parseBlock();
+ node.handler = null;
+ if (this.tok.type === __acorn.tokTypes._catch) {
+ var clause = this.startNode();
+ this.next();
+ this.expect(__acorn.tokTypes.parenL);
+ clause.param = this.toAssignable(this.parseExprAtom(), true);
+ this.expect(__acorn.tokTypes.parenR);
+ clause.body = this.parseBlock();
+ node.handler = this.finishNode(clause, "CatchClause");
+ }
+ node.finalizer = this.eat(__acorn.tokTypes._finally) ? this.parseBlock() : null;
+ if (!node.handler && !node.finalizer) { return node.block }
+ return this.finishNode(node, "TryStatement")
+
+ case __acorn.tokTypes._var:
+ case __acorn.tokTypes._const:
+ return this.parseVar(false, kind || this.tok.value)
+
+ case __acorn.tokTypes._while:
+ this.next();
+ node.test = this.parseParenExpression();
+ node.body = this.parseStatement();
+ return this.finishNode(node, "WhileStatement")
+
+ case __acorn.tokTypes._with:
+ this.next();
+ node.object = this.parseParenExpression();
+ node.body = this.parseStatement();
+ return this.finishNode(node, "WithStatement")
+
+ case __acorn.tokTypes.braceL:
+ return this.parseBlock()
+
+ case __acorn.tokTypes.semi:
+ this.next();
+ return this.finishNode(node, "EmptyStatement")
+
+ case __acorn.tokTypes._class:
+ return this.parseClass(true)
+
+ case __acorn.tokTypes._import:
+ return this.parseImport()
+
+ case __acorn.tokTypes._export:
+ return this.parseExport()
+
+ default:
+ if (this.toks.isAsyncFunction()) {
+ this.next();
+ this.next();
+ return this.parseFunction(node, true, true)
+ }
+ var expr = this.parseExpression();
+ if (isDummy(expr)) {
+ this.next();
+ if (this.tok.type === __acorn.tokTypes.eof) { return this.finishNode(node, "EmptyStatement") }
+ return this.parseStatement()
+ } else if (starttype === __acorn.tokTypes.name && expr.type === "Identifier" && this.eat(__acorn.tokTypes.colon)) {
+ node.body = this.parseStatement();
+ node.label = expr;
+ return this.finishNode(node, "LabeledStatement")
+ } else {
+ node.expression = expr;
+ this.semicolon();
+ return this.finishNode(node, "ExpressionStatement")
+ }
+ }
+};
+
+lp$1.parseBlock = function() {
+ var this$1 = this;
+
+ var node = this.startNode();
+ this.pushCx();
+ this.expect(__acorn.tokTypes.braceL);
+ var blockIndent = this.curIndent, line = this.curLineStart;
+ node.body = [];
+ while (!this.closes(__acorn.tokTypes.braceR, blockIndent, line, true))
+ { node.body.push(this$1.parseStatement()); }
+ this.popCx();
+ this.eat(__acorn.tokTypes.braceR);
+ return this.finishNode(node, "BlockStatement")
+};
+
+lp$1.parseFor = function(node, init) {
+ node.init = init;
+ node.test = node.update = null;
+ if (this.eat(__acorn.tokTypes.semi) && this.tok.type !== __acorn.tokTypes.semi) { node.test = this.parseExpression(); }
+ if (this.eat(__acorn.tokTypes.semi) && this.tok.type !== __acorn.tokTypes.parenR) { node.update = this.parseExpression(); }
+ this.popCx();
+ this.expect(__acorn.tokTypes.parenR);
+ node.body = this.parseStatement();
+ return this.finishNode(node, "ForStatement")
+};
+
+lp$1.parseForIn = function(node, init) {
+ var type = this.tok.type === __acorn.tokTypes._in ? "ForInStatement" : "ForOfStatement";
+ this.next();
+ node.left = init;
+ node.right = this.parseExpression();
+ this.popCx();
+ this.expect(__acorn.tokTypes.parenR);
+ node.body = this.parseStatement();
+ return this.finishNode(node, type)
+};
+
+lp$1.parseVar = function(noIn, kind) {
+ var this$1 = this;
+
+ var node = this.startNode();
+ node.kind = kind;
+ this.next();
+ node.declarations = [];
+ do {
+ var decl = this$1.startNode();
+ decl.id = this$1.options.ecmaVersion >= 6 ? this$1.toAssignable(this$1.parseExprAtom(), true) : this$1.parseIdent();
+ decl.init = this$1.eat(__acorn.tokTypes.eq) ? this$1.parseMaybeAssign(noIn) : null;
+ node.declarations.push(this$1.finishNode(decl, "VariableDeclarator"));
+ } while (this.eat(__acorn.tokTypes.comma))
+ if (!node.declarations.length) {
+ var decl$1 = this.startNode();
+ decl$1.id = this.dummyIdent();
+ node.declarations.push(this.finishNode(decl$1, "VariableDeclarator"));
+ }
+ if (!noIn) { this.semicolon(); }
+ return this.finishNode(node, "VariableDeclaration")
+};
+
+lp$1.parseClass = function(isStatement) {
+ var this$1 = this;
+
+ var node = this.startNode();
+ this.next();
+ if (this.tok.type === __acorn.tokTypes.name) { node.id = this.parseIdent(); }
+ else if (isStatement === true) { node.id = this.dummyIdent(); }
+ else { node.id = null; }
+ node.superClass = this.eat(__acorn.tokTypes._extends) ? this.parseExpression() : null;
+ node.body = this.startNode();
+ node.body.body = [];
+ this.pushCx();
+ var indent = this.curIndent + 1, line = this.curLineStart;
+ this.eat(__acorn.tokTypes.braceL);
+ if (this.curIndent + 1 < indent) { indent = this.curIndent; line = this.curLineStart; }
+ while (!this.closes(__acorn.tokTypes.braceR, indent, line)) {
+ if (this$1.semicolon()) { continue }
+ var method = this$1.startNode(), isGenerator = (void 0), isAsync = (void 0);
+ if (this$1.options.ecmaVersion >= 6) {
+ method.static = false;
+ isGenerator = this$1.eat(__acorn.tokTypes.star);
+ }
+ this$1.parsePropertyName(method);
+ if (isDummy(method.key)) { if (isDummy(this$1.parseMaybeAssign())) { this$1.next(); } this$1.eat(__acorn.tokTypes.comma); continue }
+ if (method.key.type === "Identifier" && !method.computed && method.key.name === "static" &&
+ (this$1.tok.type != __acorn.tokTypes.parenL && this$1.tok.type != __acorn.tokTypes.braceL)) {
+ method.static = true;
+ isGenerator = this$1.eat(__acorn.tokTypes.star);
+ this$1.parsePropertyName(method);
+ } else {
+ method.static = false;
+ }
+ if (!method.computed &&
+ method.key.type === "Identifier" && method.key.name === "async" && this$1.tok.type !== __acorn.tokTypes.parenL &&
+ !this$1.canInsertSemicolon()) {
+ this$1.parsePropertyName(method);
+ isAsync = true;
+ } else {
+ isAsync = false;
+ }
+ if (this$1.options.ecmaVersion >= 5 && method.key.type === "Identifier" &&
+ !method.computed && (method.key.name === "get" || method.key.name === "set") &&
+ this$1.tok.type !== __acorn.tokTypes.parenL && this$1.tok.type !== __acorn.tokTypes.braceL) {
+ method.kind = method.key.name;
+ this$1.parsePropertyName(method);
+ method.value = this$1.parseMethod(false);
+ } else {
+ if (!method.computed && !method.static && !isGenerator && !isAsync && (
+ method.key.type === "Identifier" && method.key.name === "constructor" ||
+ method.key.type === "Literal" && method.key.value === "constructor")) {
+ method.kind = "constructor";
+ } else {
+ method.kind = "method";
+ }
+ method.value = this$1.parseMethod(isGenerator, isAsync);
+ }
+ node.body.body.push(this$1.finishNode(method, "MethodDefinition"));
+ }
+ this.popCx();
+ if (!this.eat(__acorn.tokTypes.braceR)) {
+ // If there is no closing brace, make the node span to the start
+ // of the next token (this is useful for Tern)
+ this.last.end = this.tok.start;
+ if (this.options.locations) { this.last.loc.end = this.tok.loc.start; }
+ }
+ this.semicolon();
+ this.finishNode(node.body, "ClassBody");
+ return this.finishNode(node, isStatement ? "ClassDeclaration" : "ClassExpression")
+};
+
+lp$1.parseFunction = function(node, isStatement, isAsync) {
+ var oldInAsync = this.inAsync;
+ this.initFunction(node);
+ if (this.options.ecmaVersion >= 6) {
+ node.generator = this.eat(__acorn.tokTypes.star);
+ }
+ if (this.options.ecmaVersion >= 8) {
+ node.async = !!isAsync;
+ }
+ if (this.tok.type === __acorn.tokTypes.name) { node.id = this.parseIdent(); }
+ else if (isStatement === true) { node.id = this.dummyIdent(); }
+ this.inAsync = node.async;
+ node.params = this.parseFunctionParams();
+ node.body = this.parseBlock();
+ this.inAsync = oldInAsync;
+ return this.finishNode(node, isStatement ? "FunctionDeclaration" : "FunctionExpression")
+};
+
+lp$1.parseExport = function() {
+ var node = this.startNode();
+ this.next();
+ if (this.eat(__acorn.tokTypes.star)) {
+ node.source = this.eatContextual("from") ? this.parseExprAtom() : this.dummyString();
+ return this.finishNode(node, "ExportAllDeclaration")
+ }
+ if (this.eat(__acorn.tokTypes._default)) {
+ // export default (function foo() {}) // This is FunctionExpression.
+ var isAsync;
+ if (this.tok.type === __acorn.tokTypes._function || (isAsync = this.toks.isAsyncFunction())) {
+ var fNode = this.startNode();
+ this.next();
+ if (isAsync) { this.next(); }
+ node.declaration = this.parseFunction(fNode, "nullableID", isAsync);
+ } else if (this.tok.type === __acorn.tokTypes._class) {
+ node.declaration = this.parseClass("nullableID");
+ } else {
+ node.declaration = this.parseMaybeAssign();
+ this.semicolon();
+ }
+ return this.finishNode(node, "ExportDefaultDeclaration")
+ }
+ if (this.tok.type.keyword || this.toks.isLet() || this.toks.isAsyncFunction()) {
+ node.declaration = this.parseStatement();
+ node.specifiers = [];
+ node.source = null;
+ } else {
+ node.declaration = null;
+ node.specifiers = this.parseExportSpecifierList();
+ node.source = this.eatContextual("from") ? this.parseExprAtom() : null;
+ this.semicolon();
+ }
+ return this.finishNode(node, "ExportNamedDeclaration")
+};
+
+lp$1.parseImport = function() {
+ var node = this.startNode();
+ this.next();
+ if (this.tok.type === __acorn.tokTypes.string) {
+ node.specifiers = [];
+ node.source = this.parseExprAtom();
+ node.kind = "";
+ } else {
+ var elt;
+ if (this.tok.type === __acorn.tokTypes.name && this.tok.value !== "from") {
+ elt = this.startNode();
+ elt.local = this.parseIdent();
+ this.finishNode(elt, "ImportDefaultSpecifier");
+ this.eat(__acorn.tokTypes.comma);
+ }
+ node.specifiers = this.parseImportSpecifierList();
+ node.source = this.eatContextual("from") && this.tok.type == __acorn.tokTypes.string ? this.parseExprAtom() : this.dummyString();
+ if (elt) { node.specifiers.unshift(elt); }
+ }
+ this.semicolon();
+ return this.finishNode(node, "ImportDeclaration")
+};
+
+lp$1.parseImportSpecifierList = function() {
+ var this$1 = this;
+
+ var elts = [];
+ if (this.tok.type === __acorn.tokTypes.star) {
+ var elt = this.startNode();
+ this.next();
+ elt.local = this.eatContextual("as") ? this.parseIdent() : this.dummyIdent();
+ elts.push(this.finishNode(elt, "ImportNamespaceSpecifier"));
+ } else {
+ var indent = this.curIndent, line = this.curLineStart, continuedLine = this.nextLineStart;
+ this.pushCx();
+ this.eat(__acorn.tokTypes.braceL);
+ if (this.curLineStart > continuedLine) { continuedLine = this.curLineStart; }
+ while (!this.closes(__acorn.tokTypes.braceR, indent + (this.curLineStart <= continuedLine ? 1 : 0), line)) {
+ var elt$1 = this$1.startNode();
+ if (this$1.eat(__acorn.tokTypes.star)) {
+ elt$1.local = this$1.eatContextual("as") ? this$1.parseIdent() : this$1.dummyIdent();
+ this$1.finishNode(elt$1, "ImportNamespaceSpecifier");
+ } else {
+ if (this$1.isContextual("from")) { break }
+ elt$1.imported = this$1.parseIdent();
+ if (isDummy(elt$1.imported)) { break }
+ elt$1.local = this$1.eatContextual("as") ? this$1.parseIdent() : elt$1.imported;
+ this$1.finishNode(elt$1, "ImportSpecifier");
+ }
+ elts.push(elt$1);
+ this$1.eat(__acorn.tokTypes.comma);
+ }
+ this.eat(__acorn.tokTypes.braceR);
+ this.popCx();
+ }
+ return elts
+};
+
+lp$1.parseExportSpecifierList = function() {
+ var this$1 = this;
+
+ var elts = [];
+ var indent = this.curIndent, line = this.curLineStart, continuedLine = this.nextLineStart;
+ this.pushCx();
+ this.eat(__acorn.tokTypes.braceL);
+ if (this.curLineStart > continuedLine) { continuedLine = this.curLineStart; }
+ while (!this.closes(__acorn.tokTypes.braceR, indent + (this.curLineStart <= continuedLine ? 1 : 0), line)) {
+ if (this$1.isContextual("from")) { break }
+ var elt = this$1.startNode();
+ elt.local = this$1.parseIdent();
+ if (isDummy(elt.local)) { break }
+ elt.exported = this$1.eatContextual("as") ? this$1.parseIdent() : elt.local;
+ this$1.finishNode(elt, "ExportSpecifier");
+ elts.push(elt);
+ this$1.eat(__acorn.tokTypes.comma);
+ }
+ this.eat(__acorn.tokTypes.braceR);
+ this.popCx();
+ return elts
+};
+
+var lp$2 = LooseParser.prototype;
+
+lp$2.checkLVal = function(expr) {
+ if (!expr) { return expr }
+ switch (expr.type) {
+ case "Identifier":
+ case "MemberExpression":
+ return expr
+
+ case "ParenthesizedExpression":
+ expr.expression = this.checkLVal(expr.expression);
+ return expr
+
+ default:
+ return this.dummyIdent()
+ }
+};
+
+lp$2.parseExpression = function(noIn) {
+ var this$1 = this;
+
+ var start = this.storeCurrentPos();
+ var expr = this.parseMaybeAssign(noIn);
+ if (this.tok.type === __acorn.tokTypes.comma) {
+ var node = this.startNodeAt(start);
+ node.expressions = [expr];
+ while (this.eat(__acorn.tokTypes.comma)) { node.expressions.push(this$1.parseMaybeAssign(noIn)); }
+ return this.finishNode(node, "SequenceExpression")
+ }
+ return expr
+};
+
+lp$2.parseParenExpression = function() {
+ this.pushCx();
+ this.expect(__acorn.tokTypes.parenL);
+ var val = this.parseExpression();
+ this.popCx();
+ this.expect(__acorn.tokTypes.parenR);
+ return val
+};
+
+lp$2.parseMaybeAssign = function(noIn) {
+ if (this.toks.isContextual("yield")) {
+ var node = this.startNode();
+ this.next();
+ if (this.semicolon() || this.canInsertSemicolon() || (this.tok.type != __acorn.tokTypes.star && !this.tok.type.startsExpr)) {
+ node.delegate = false;
+ node.argument = null;
+ } else {
+ node.delegate = this.eat(__acorn.tokTypes.star);
+ node.argument = this.parseMaybeAssign();
+ }
+ return this.finishNode(node, "YieldExpression")
+ }
+
+ var start = this.storeCurrentPos();
+ var left = this.parseMaybeConditional(noIn);
+ if (this.tok.type.isAssign) {
+ var node$1 = this.startNodeAt(start);
+ node$1.operator = this.tok.value;
+ node$1.left = this.tok.type === __acorn.tokTypes.eq ? this.toAssignable(left) : this.checkLVal(left);
+ this.next();
+ node$1.right = this.parseMaybeAssign(noIn);
+ return this.finishNode(node$1, "AssignmentExpression")
+ }
+ return left
+};
+
+lp$2.parseMaybeConditional = function(noIn) {
+ var start = this.storeCurrentPos();
+ var expr = this.parseExprOps(noIn);
+ if (this.eat(__acorn.tokTypes.question)) {
+ var node = this.startNodeAt(start);
+ node.test = expr;
+ node.consequent = this.parseMaybeAssign();
+ node.alternate = this.expect(__acorn.tokTypes.colon) ? this.parseMaybeAssign(noIn) : this.dummyIdent();
+ return this.finishNode(node, "ConditionalExpression")
+ }
+ return expr
+};
+
+lp$2.parseExprOps = function(noIn) {
+ var start = this.storeCurrentPos();
+ var indent = this.curIndent, line = this.curLineStart;
+ return this.parseExprOp(this.parseMaybeUnary(false), start, -1, noIn, indent, line)
+};
+
+lp$2.parseExprOp = function(left, start, minPrec, noIn, indent, line) {
+ if (this.curLineStart != line && this.curIndent < indent && this.tokenStartsLine()) { return left }
+ var prec = this.tok.type.binop;
+ if (prec != null && (!noIn || this.tok.type !== __acorn.tokTypes._in)) {
+ if (prec > minPrec) {
+ var node = this.startNodeAt(start);
+ node.left = left;
+ node.operator = this.tok.value;
+ this.next();
+ if (this.curLineStart != line && this.curIndent < indent && this.tokenStartsLine()) {
+ node.right = this.dummyIdent();
+ } else {
+ var rightStart = this.storeCurrentPos();
+ node.right = this.parseExprOp(this.parseMaybeUnary(false), rightStart, prec, noIn, indent, line);
+ }
+ this.finishNode(node, /&&|\|\|/.test(node.operator) ? "LogicalExpression" : "BinaryExpression");
+ return this.parseExprOp(node, start, minPrec, noIn, indent, line)
+ }
+ }
+ return left
+};
+
+lp$2.parseMaybeUnary = function(sawUnary) {
+ var this$1 = this;
+
+ var start = this.storeCurrentPos(), expr;
+ if (this.options.ecmaVersion >= 8 && this.inAsync && this.toks.isContextual("await")) {
+ expr = this.parseAwait();
+ sawUnary = true;
+ } else if (this.tok.type.prefix) {
+ var node = this.startNode(), update = this.tok.type === __acorn.tokTypes.incDec;
+ if (!update) { sawUnary = true; }
+ node.operator = this.tok.value;
+ node.prefix = true;
+ this.next();
+ node.argument = this.parseMaybeUnary(true);
+ if (update) { node.argument = this.checkLVal(node.argument); }
+ expr = this.finishNode(node, update ? "UpdateExpression" : "UnaryExpression");
+ } else if (this.tok.type === __acorn.tokTypes.ellipsis) {
+ var node$1 = this.startNode();
+ this.next();
+ node$1.argument = this.parseMaybeUnary(sawUnary);
+ expr = this.finishNode(node$1, "SpreadElement");
+ } else {
+ expr = this.parseExprSubscripts();
+ while (this.tok.type.postfix && !this.canInsertSemicolon()) {
+ var node$2 = this$1.startNodeAt(start);
+ node$2.operator = this$1.tok.value;
+ node$2.prefix = false;
+ node$2.argument = this$1.checkLVal(expr);
+ this$1.next();
+ expr = this$1.finishNode(node$2, "UpdateExpression");
+ }
+ }
+
+ if (!sawUnary && this.eat(__acorn.tokTypes.starstar)) {
+ var node$3 = this.startNodeAt(start);
+ node$3.operator = "**";
+ node$3.left = expr;
+ node$3.right = this.parseMaybeUnary(false);
+ return this.finishNode(node$3, "BinaryExpression")
+ }
+
+ return expr
+};
+
+lp$2.parseExprSubscripts = function() {
+ var start = this.storeCurrentPos();
+ return this.parseSubscripts(this.parseExprAtom(), start, false, this.curIndent, this.curLineStart)
+};
+
+lp$2.parseSubscripts = function(base, start, noCalls, startIndent, line) {
+ var this$1 = this;
+
+ for (;;) {
+ if (this$1.curLineStart != line && this$1.curIndent <= startIndent && this$1.tokenStartsLine()) {
+ if (this$1.tok.type == __acorn.tokTypes.dot && this$1.curIndent == startIndent)
+ { --startIndent; }
+ else
+ { return base }
+ }
+
+ var maybeAsyncArrow = base.type === "Identifier" && base.name === "async" && !this$1.canInsertSemicolon();
+
+ if (this$1.eat(__acorn.tokTypes.dot)) {
+ var node = this$1.startNodeAt(start);
+ node.object = base;
+ if (this$1.curLineStart != line && this$1.curIndent <= startIndent && this$1.tokenStartsLine())
+ { node.property = this$1.dummyIdent(); }
+ else
+ { node.property = this$1.parsePropertyAccessor() || this$1.dummyIdent(); }
+ node.computed = false;
+ base = this$1.finishNode(node, "MemberExpression");
+ } else if (this$1.tok.type == __acorn.tokTypes.bracketL) {
+ this$1.pushCx();
+ this$1.next();
+ var node$1 = this$1.startNodeAt(start);
+ node$1.object = base;
+ node$1.property = this$1.parseExpression();
+ node$1.computed = true;
+ this$1.popCx();
+ this$1.expect(__acorn.tokTypes.bracketR);
+ base = this$1.finishNode(node$1, "MemberExpression");
+ } else if (!noCalls && this$1.tok.type == __acorn.tokTypes.parenL) {
+ var exprList = this$1.parseExprList(__acorn.tokTypes.parenR);
+ if (maybeAsyncArrow && this$1.eat(__acorn.tokTypes.arrow))
+ { return this$1.parseArrowExpression(this$1.startNodeAt(start), exprList, true) }
+ var node$2 = this$1.startNodeAt(start);
+ node$2.callee = base;
+ node$2.arguments = exprList;
+ base = this$1.finishNode(node$2, "CallExpression");
+ } else if (this$1.tok.type == __acorn.tokTypes.backQuote) {
+ var node$3 = this$1.startNodeAt(start);
+ node$3.tag = base;
+ node$3.quasi = this$1.parseTemplate();
+ base = this$1.finishNode(node$3, "TaggedTemplateExpression");
+ } else {
+ return base
+ }
+ }
+};
+
+lp$2.parseExprAtom = function() {
+ var node;
+ switch (this.tok.type) {
+ case __acorn.tokTypes._this:
+ case __acorn.tokTypes._super:
+ var type = this.tok.type === __acorn.tokTypes._this ? "ThisExpression" : "Super";
+ node = this.startNode();
+ this.next();
+ return this.finishNode(node, type)
+
+ case __acorn.tokTypes.name:
+ var start = this.storeCurrentPos();
+ var id = this.parseIdent();
+ var isAsync = false;
+ if (id.name === "async" && !this.canInsertSemicolon()) {
+ if (this.eat(__acorn.tokTypes._function))
+ { return this.parseFunction(this.startNodeAt(start), false, true) }
+ if (this.tok.type === __acorn.tokTypes.name) {
+ id = this.parseIdent();
+ isAsync = true;
+ }
+ }
+ return this.eat(__acorn.tokTypes.arrow) ? this.parseArrowExpression(this.startNodeAt(start), [id], isAsync) : id
+
+ case __acorn.tokTypes.regexp:
+ node = this.startNode();
+ var val = this.tok.value;
+ node.regex = {pattern: val.pattern, flags: val.flags};
+ node.value = val.value;
+ node.raw = this.input.slice(this.tok.start, this.tok.end);
+ this.next();
+ return this.finishNode(node, "Literal")
+
+ case __acorn.tokTypes.num: case __acorn.tokTypes.string:
+ node = this.startNode();
+ node.value = this.tok.value;
+ node.raw = this.input.slice(this.tok.start, this.tok.end);
+ this.next();
+ return this.finishNode(node, "Literal")
+
+ case __acorn.tokTypes._null: case __acorn.tokTypes._true: case __acorn.tokTypes._false:
+ node = this.startNode();
+ node.value = this.tok.type === __acorn.tokTypes._null ? null : this.tok.type === __acorn.tokTypes._true;
+ node.raw = this.tok.type.keyword;
+ this.next();
+ return this.finishNode(node, "Literal")
+
+ case __acorn.tokTypes.parenL:
+ var parenStart = this.storeCurrentPos();
+ this.next();
+ var inner = this.parseExpression();
+ this.expect(__acorn.tokTypes.parenR);
+ if (this.eat(__acorn.tokTypes.arrow)) {
+ // (a,)=>a // SequenceExpression makes dummy in the last hole. Drop the dummy.
+ var params = inner.expressions || [inner];
+ if (params.length && isDummy(params[params.length - 1]))
+ { params.pop(); }
+ return this.parseArrowExpression(this.startNodeAt(parenStart), params)
+ }
+ if (this.options.preserveParens) {
+ var par = this.startNodeAt(parenStart);
+ par.expression = inner;
+ inner = this.finishNode(par, "ParenthesizedExpression");
+ }
+ return inner
+
+ case __acorn.tokTypes.bracketL:
+ node = this.startNode();
+ node.elements = this.parseExprList(__acorn.tokTypes.bracketR, true);
+ return this.finishNode(node, "ArrayExpression")
+
+ case __acorn.tokTypes.braceL:
+ return this.parseObj()
+
+ case __acorn.tokTypes._class:
+ return this.parseClass(false)
+
+ case __acorn.tokTypes._function:
+ node = this.startNode();
+ this.next();
+ return this.parseFunction(node, false)
+
+ case __acorn.tokTypes._new:
+ return this.parseNew()
+
+ case __acorn.tokTypes.backQuote:
+ return this.parseTemplate()
+
+ default:
+ return this.dummyIdent()
+ }
+};
+
+lp$2.parseNew = function() {
+ var node = this.startNode(), startIndent = this.curIndent, line = this.curLineStart;
+ var meta = this.parseIdent(true);
+ if (this.options.ecmaVersion >= 6 && this.eat(__acorn.tokTypes.dot)) {
+ node.meta = meta;
+ node.property = this.parseIdent(true);
+ return this.finishNode(node, "MetaProperty")
+ }
+ var start = this.storeCurrentPos();
+ node.callee = this.parseSubscripts(this.parseExprAtom(), start, true, startIndent, line);
+ if (this.tok.type == __acorn.tokTypes.parenL) {
+ node.arguments = this.parseExprList(__acorn.tokTypes.parenR);
+ } else {
+ node.arguments = [];
+ }
+ return this.finishNode(node, "NewExpression")
+};
+
+lp$2.parseTemplateElement = function() {
+ var elem = this.startNode();
+
+ // The loose parser accepts invalid unicode escapes even in untagged templates.
+ if (this.tok.type === __acorn.tokTypes.invalidTemplate) {
+ elem.value = {
+ raw: this.tok.value,
+ cooked: null
+ };
+ } else {
+ elem.value = {
+ raw: this.input.slice(this.tok.start, this.tok.end).replace(/\r\n?/g, "\n"),
+ cooked: this.tok.value
+ };
+ }
+ this.next();
+ elem.tail = this.tok.type === __acorn.tokTypes.backQuote;
+ return this.finishNode(elem, "TemplateElement")
+};
+
+lp$2.parseTemplate = function() {
+ var this$1 = this;
+
+ var node = this.startNode();
+ this.next();
+ node.expressions = [];
+ var curElt = this.parseTemplateElement();
+ node.quasis = [curElt];
+ while (!curElt.tail) {
+ this$1.next();
+ node.expressions.push(this$1.parseExpression());
+ if (this$1.expect(__acorn.tokTypes.braceR)) {
+ curElt = this$1.parseTemplateElement();
+ } else {
+ curElt = this$1.startNode();
+ curElt.value = {cooked: "", raw: ""};
+ curElt.tail = true;
+ this$1.finishNode(curElt, "TemplateElement");
+ }
+ node.quasis.push(curElt);
+ }
+ this.expect(__acorn.tokTypes.backQuote);
+ return this.finishNode(node, "TemplateLiteral")
+};
+
+lp$2.parseObj = function() {
+ var this$1 = this;
+
+ var node = this.startNode();
+ node.properties = [];
+ this.pushCx();
+ var indent = this.curIndent + 1, line = this.curLineStart;
+ this.eat(__acorn.tokTypes.braceL);
+ if (this.curIndent + 1 < indent) { indent = this.curIndent; line = this.curLineStart; }
+ while (!this.closes(__acorn.tokTypes.braceR, indent, line)) {
+ var prop = this$1.startNode(), isGenerator = (void 0), isAsync = (void 0), start = (void 0);
+ if (this$1.options.ecmaVersion >= 6) {
+ start = this$1.storeCurrentPos();
+ prop.method = false;
+ prop.shorthand = false;
+ isGenerator = this$1.eat(__acorn.tokTypes.star);
+ }
+ this$1.parsePropertyName(prop);
+ if (this$1.toks.isAsyncProp(prop)) {
+ this$1.parsePropertyName(prop);
+ isAsync = true;
+ } else {
+ isAsync = false;
+ }
+ if (isDummy(prop.key)) { if (isDummy(this$1.parseMaybeAssign())) { this$1.next(); } this$1.eat(__acorn.tokTypes.comma); continue }
+ if (this$1.eat(__acorn.tokTypes.colon)) {
+ prop.kind = "init";
+ prop.value = this$1.parseMaybeAssign();
+ } else if (this$1.options.ecmaVersion >= 6 && (this$1.tok.type === __acorn.tokTypes.parenL || this$1.tok.type === __acorn.tokTypes.braceL)) {
+ prop.kind = "init";
+ prop.method = true;
+ prop.value = this$1.parseMethod(isGenerator, isAsync);
+ } else if (this$1.options.ecmaVersion >= 5 && prop.key.type === "Identifier" &&
+ !prop.computed && (prop.key.name === "get" || prop.key.name === "set") &&
+ (this$1.tok.type != __acorn.tokTypes.comma && this$1.tok.type != __acorn.tokTypes.braceR)) {
+ prop.kind = prop.key.name;
+ this$1.parsePropertyName(prop);
+ prop.value = this$1.parseMethod(false);
+ } else {
+ prop.kind = "init";
+ if (this$1.options.ecmaVersion >= 6) {
+ if (this$1.eat(__acorn.tokTypes.eq)) {
+ var assign = this$1.startNodeAt(start);
+ assign.operator = "=";
+ assign.left = prop.key;
+ assign.right = this$1.parseMaybeAssign();
+ prop.value = this$1.finishNode(assign, "AssignmentExpression");
+ } else {
+ prop.value = prop.key;
+ }
+ } else {
+ prop.value = this$1.dummyIdent();
+ }
+ prop.shorthand = true;
+ }
+ node.properties.push(this$1.finishNode(prop, "Property"));
+ this$1.eat(__acorn.tokTypes.comma);
+ }
+ this.popCx();
+ if (!this.eat(__acorn.tokTypes.braceR)) {
+ // If there is no closing brace, make the node span to the start
+ // of the next token (this is useful for Tern)
+ this.last.end = this.tok.start;
+ if (this.options.locations) { this.last.loc.end = this.tok.loc.start; }
+ }
+ return this.finishNode(node, "ObjectExpression")
+};
+
+lp$2.parsePropertyName = function(prop) {
+ if (this.options.ecmaVersion >= 6) {
+ if (this.eat(__acorn.tokTypes.bracketL)) {
+ prop.computed = true;
+ prop.key = this.parseExpression();
+ this.expect(__acorn.tokTypes.bracketR);
+ return
+ } else {
+ prop.computed = false;
+ }
+ }
+ var key = (this.tok.type === __acorn.tokTypes.num || this.tok.type === __acorn.tokTypes.string) ? this.parseExprAtom() : this.parseIdent();
+ prop.key = key || this.dummyIdent();
+};
+
+lp$2.parsePropertyAccessor = function() {
+ if (this.tok.type === __acorn.tokTypes.name || this.tok.type.keyword) { return this.parseIdent() }
+};
+
+lp$2.parseIdent = function() {
+ var name = this.tok.type === __acorn.tokTypes.name ? this.tok.value : this.tok.type.keyword;
+ if (!name) { return this.dummyIdent() }
+ var node = this.startNode();
+ this.next();
+ node.name = name;
+ return this.finishNode(node, "Identifier")
+};
+
+lp$2.initFunction = function(node) {
+ node.id = null;
+ node.params = [];
+ if (this.options.ecmaVersion >= 6) {
+ node.generator = false;
+ node.expression = false;
+ }
+ if (this.options.ecmaVersion >= 8)
+ { node.async = false; }
+};
+
+// Convert existing expression atom to assignable pattern
+// if possible.
+
+lp$2.toAssignable = function(node, binding) {
+ var this$1 = this;
+
+ if (!node || node.type == "Identifier" || (node.type == "MemberExpression" && !binding)) {
+ // Okay
+ } else if (node.type == "ParenthesizedExpression") {
+ this.toAssignable(node.expression, binding);
+ } else if (this.options.ecmaVersion < 6) {
+ return this.dummyIdent()
+ } else if (node.type == "ObjectExpression") {
+ node.type = "ObjectPattern";
+ var props = node.properties;
+ for (var i = 0, list = props; i < list.length; i += 1)
+ {
+ var prop = list[i];
+
+ this$1.toAssignable(prop.value, binding);
+ }
+ } else if (node.type == "ArrayExpression") {
+ node.type = "ArrayPattern";
+ this.toAssignableList(node.elements, binding);
+ } else if (node.type == "SpreadElement") {
+ node.type = "RestElement";
+ this.toAssignable(node.argument, binding);
+ } else if (node.type == "AssignmentExpression") {
+ node.type = "AssignmentPattern";
+ delete node.operator;
+ } else {
+ return this.dummyIdent()
+ }
+ return node
+};
+
+lp$2.toAssignableList = function(exprList, binding) {
+ var this$1 = this;
+
+ for (var i = 0, list = exprList; i < list.length; i += 1)
+ {
+ var expr = list[i];
+
+ this$1.toAssignable(expr, binding);
+ }
+ return exprList
+};
+
+lp$2.parseFunctionParams = function(params) {
+ params = this.parseExprList(__acorn.tokTypes.parenR);
+ return this.toAssignableList(params, true)
+};
+
+lp$2.parseMethod = function(isGenerator, isAsync) {
+ var node = this.startNode(), oldInAsync = this.inAsync;
+ this.initFunction(node);
+ if (this.options.ecmaVersion >= 6)
+ { node.generator = !!isGenerator; }
+ if (this.options.ecmaVersion >= 8)
+ { node.async = !!isAsync; }
+ this.inAsync = node.async;
+ node.params = this.parseFunctionParams();
+ node.expression = this.options.ecmaVersion >= 6 && this.tok.type !== __acorn.tokTypes.braceL;
+ node.body = node.expression ? this.parseMaybeAssign() : this.parseBlock();
+ this.inAsync = oldInAsync;
+ return this.finishNode(node, "FunctionExpression")
+};
+
+lp$2.parseArrowExpression = function(node, params, isAsync) {
+ var oldInAsync = this.inAsync;
+ this.initFunction(node);
+ if (this.options.ecmaVersion >= 8)
+ { node.async = !!isAsync; }
+ this.inAsync = node.async;
+ node.params = this.toAssignableList(params, true);
+ node.expression = this.tok.type !== __acorn.tokTypes.braceL;
+ node.body = node.expression ? this.parseMaybeAssign() : this.parseBlock();
+ this.inAsync = oldInAsync;
+ return this.finishNode(node, "ArrowFunctionExpression")
+};
+
+lp$2.parseExprList = function(close, allowEmpty) {
+ var this$1 = this;
+
+ this.pushCx();
+ var indent = this.curIndent, line = this.curLineStart, elts = [];
+ this.next(); // Opening bracket
+ while (!this.closes(close, indent + 1, line)) {
+ if (this$1.eat(__acorn.tokTypes.comma)) {
+ elts.push(allowEmpty ? null : this$1.dummyIdent());
+ continue
+ }
+ var elt = this$1.parseMaybeAssign();
+ if (isDummy(elt)) {
+ if (this$1.closes(close, indent, line)) { break }
+ this$1.next();
+ } else {
+ elts.push(elt);
+ }
+ this$1.eat(__acorn.tokTypes.comma);
+ }
+ this.popCx();
+ if (!this.eat(close)) {
+ // If there is no closing brace, make the node span to the start
+ // of the next token (this is useful for Tern)
+ this.last.end = this.tok.start;
+ if (this.options.locations) { this.last.loc.end = this.tok.loc.start; }
+ }
+ return elts
+};
+
+lp$2.parseAwait = function() {
+ var node = this.startNode();
+ this.next();
+ node.argument = this.parseMaybeUnary();
+ return this.finishNode(node, "AwaitExpression")
+};
+
+// Acorn: Loose parser
+//
+// This module provides an alternative parser (`parse_dammit`) that
+// exposes that same interface as `parse`, but will try to parse
+// anything as JavaScript, repairing syntax error the best it can.
+// There are circumstances in which it will raise an error and give
+// up, but they are very rare. The resulting AST will be a mostly
+// valid JavaScript AST (as per the [Mozilla parser API][api], except
+// that:
+//
+// - Return outside functions is allowed
+//
+// - Label consistency (no conflicts, break only to existing labels)
+// is not enforced.
+//
+// - Bogus Identifier nodes with a name of `"✖"` are inserted whenever
+// the parser got too confused to return anything meaningful.
+//
+// [api]: https://developer.mozilla.org/en-US/docs/SpiderMonkey/Parser_API
+//
+// The expected use for this is to *first* try `acorn.parse`, and only
+// if that fails switch to `parse_dammit`. The loose parser might
+// parse badly indented code incorrectly, so **don't** use it as
+// your default parser.
+//
+// Quite a lot of acorn.js is duplicated here. The alternative was to
+// add a *lot* of extra cruft to that file, making it less readable
+// and slower. Copying and editing the code allowed me to make
+// invasive changes and simplifications without creating a complicated
+// tangle.
+
+__acorn.defaultOptions.tabSize = 4;
+
+// eslint-disable-next-line camelcase
+function parse_dammit(input, options) {
+ return new LooseParser(input, options).parse()
+}
+
+__acorn.addLooseExports(parse_dammit, LooseParser, pluginsLoose);
+
+exports.parse_dammit = parse_dammit;
+exports.LooseParser = LooseParser;
+exports.pluginsLoose = pluginsLoose;
+
+Object.defineProperty(exports, '__esModule', { value: true });
+
+})));
+
+},{"./acorn":2}],4:[function(require,module,exports){
+(function (global, factory) {
+ typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
+ typeof define === 'function' && define.amd ? define(['exports'], factory) :
+ (factory((global.acorn = global.acorn || {}, global.acorn.walk = global.acorn.walk || {})));
+}(this, (function (exports) { 'use strict';
+
+// AST walker module for Mozilla Parser API compatible trees
+
+// A simple walk is one where you simply specify callbacks to be
+// called on specific nodes. The last two arguments are optional. A
+// simple use would be
+//
+// walk.simple(myTree, {
+// Expression: function(node) { ... }
+// });
+//
+// to do something with all expressions. All Parser API node types
+// can be used to identify node types, as well as Expression,
+// Statement, and ScopeBody, which denote categories of nodes.
+//
+// The base argument can be used to pass a custom (recursive)
+// walker, and state can be used to give this walked an initial
+// state.
+
+function simple(node, visitors, base, state, override) {
+ if (!base) { base = exports.base
+ ; }(function c(node, st, override) {
+ var type = override || node.type, found = visitors[type];
+ base[type](node, st, c);
+ if (found) { found(node, st); }
+ })(node, state, override);
+}
+
+// An ancestor walk keeps an array of ancestor nodes (including the
+// current node) and passes them to the callback as third parameter
+// (and also as state parameter when no other state is present).
+function ancestor(node, visitors, base, state) {
+ if (!base) { base = exports.base; }
+ var ancestors = [];(function c(node, st, override) {
+ var type = override || node.type, found = visitors[type];
+ var isNew = node != ancestors[ancestors.length - 1];
+ if (isNew) { ancestors.push(node); }
+ base[type](node, st, c);
+ if (found) { found(node, st || ancestors, ancestors); }
+ if (isNew) { ancestors.pop(); }
+ })(node, state);
+}
+
+// A recursive walk is one where your functions override the default
+// walkers. They can modify and replace the state parameter that's
+// threaded through the walk, and can opt how and whether to walk
+// their child nodes (by calling their third argument on these
+// nodes).
+function recursive(node, state, funcs, base, override) {
+ var visitor = funcs ? exports.make(funcs, base) : base;(function c(node, st, override) {
+ visitor[override || node.type](node, st, c);
+ })(node, state, override);
+}
+
+function makeTest(test) {
+ if (typeof test == "string")
+ { return function (type) { return type == test; } }
+ else if (!test)
+ { return function () { return true; } }
+ else
+ { return test }
+}
+
+var Found = function Found(node, state) { this.node = node; this.state = state; };
+
+// A full walk triggers the callback on each node
+function full(node, callback, base, state, override) {
+ if (!base) { base = exports.base
+ ; }(function c(node, st, override) {
+ var type = override || node.type;
+ base[type](node, st, c);
+ callback(node, st, type);
+ })(node, state, override);
+}
+
+// An fullAncestor walk is like an ancestor walk, but triggers
+// the callback on each node
+function fullAncestor(node, callback, base, state) {
+ if (!base) { base = exports.base; }
+ var ancestors = [];(function c(node, st, override) {
+ var type = override || node.type;
+ var isNew = node != ancestors[ancestors.length - 1];
+ if (isNew) { ancestors.push(node); }
+ base[type](node, st, c);
+ callback(node, st || ancestors, ancestors, type);
+ if (isNew) { ancestors.pop(); }
+ })(node, state);
+}
+
+// Find a node with a given start, end, and type (all are optional,
+// null can be used as wildcard). Returns a {node, state} object, or
+// undefined when it doesn't find a matching node.
+function findNodeAt(node, start, end, test, base, state) {
+ test = makeTest(test);
+ if (!base) { base = exports.base; }
+ try {
+ (function c(node, st, override) {
+ var type = override || node.type;
+ if ((start == null || node.start <= start) &&
+ (end == null || node.end >= end))
+ { base[type](node, st, c); }
+ if ((start == null || node.start == start) &&
+ (end == null || node.end == end) &&
+ test(type, node))
+ { throw new Found(node, st) }
+ })(node, state);
+ } catch (e) {
+ if (e instanceof Found) { return e }
+ throw e
+ }
+}
+
+// Find the innermost node of a given type that contains the given
+// position. Interface similar to findNodeAt.
+function findNodeAround(node, pos, test, base, state) {
+ test = makeTest(test);
+ if (!base) { base = exports.base; }
+ try {
+ (function c(node, st, override) {
+ var type = override || node.type;
+ if (node.start > pos || node.end < pos) { return }
+ base[type](node, st, c);
+ if (test(type, node)) { throw new Found(node, st) }
+ })(node, state);
+ } catch (e) {
+ if (e instanceof Found) { return e }
+ throw e
+ }
+}
+
+// Find the outermost matching node after a given position.
+function findNodeAfter(node, pos, test, base, state) {
+ test = makeTest(test);
+ if (!base) { base = exports.base; }
+ try {
+ (function c(node, st, override) {
+ if (node.end < pos) { return }
+ var type = override || node.type;
+ if (node.start >= pos && test(type, node)) { throw new Found(node, st) }
+ base[type](node, st, c);
+ })(node, state);
+ } catch (e) {
+ if (e instanceof Found) { return e }
+ throw e
+ }
+}
+
+// Find the outermost matching node before a given position.
+function findNodeBefore(node, pos, test, base, state) {
+ test = makeTest(test);
+ if (!base) { base = exports.base; }
+ var max;(function c(node, st, override) {
+ if (node.start > pos) { return }
+ var type = override || node.type;
+ if (node.end <= pos && (!max || max.node.end < node.end) && test(type, node))
+ { max = new Found(node, st); }
+ base[type](node, st, c);
+ })(node, state);
+ return max
+}
+
+// Fallback to an Object.create polyfill for older environments.
+var create = Object.create || function(proto) {
+ function Ctor() {}
+ Ctor.prototype = proto;
+ return new Ctor
+};
+
+// Used to create a custom walker. Will fill in all missing node
+// type properties with the defaults.
+function make(funcs, base) {
+ if (!base) { base = exports.base; }
+ var visitor = create(base);
+ for (var type in funcs) { visitor[type] = funcs[type]; }
+ return visitor
+}
+
+function skipThrough(node, st, c) { c(node, st); }
+function ignore(_node, _st, _c) {}
+
+// Node walkers.
+
+var base = {};
+
+base.Program = base.BlockStatement = function (node, st, c) {
+ for (var i = 0, list = node.body; i < list.length; i += 1)
+ {
+ var stmt = list[i];
+
+ c(stmt, st, "Statement");
+ }
+};
+base.Statement = skipThrough;
+base.EmptyStatement = ignore;
+base.ExpressionStatement = base.ParenthesizedExpression =
+ function (node, st, c) { return c(node.expression, st, "Expression"); };
+base.IfStatement = function (node, st, c) {
+ c(node.test, st, "Expression");
+ c(node.consequent, st, "Statement");
+ if (node.alternate) { c(node.alternate, st, "Statement"); }
+};
+base.LabeledStatement = function (node, st, c) { return c(node.body, st, "Statement"); };
+base.BreakStatement = base.ContinueStatement = ignore;
+base.WithStatement = function (node, st, c) {
+ c(node.object, st, "Expression");
+ c(node.body, st, "Statement");
+};
+base.SwitchStatement = function (node, st, c) {
+ c(node.discriminant, st, "Expression");
+ for (var i = 0, list = node.cases; i < list.length; i += 1) {
+ var cs = list[i];
+
+ if (cs.test) { c(cs.test, st, "Expression"); }
+ for (var i$1 = 0, list$1 = cs.consequent; i$1 < list$1.length; i$1 += 1)
+ {
+ var cons = list$1[i$1];
+
+ c(cons, st, "Statement");
+ }
+ }
+};
+base.ReturnStatement = base.YieldExpression = base.AwaitExpression = function (node, st, c) {
+ if (node.argument) { c(node.argument, st, "Expression"); }
+};
+base.ThrowStatement = base.SpreadElement =
+ function (node, st, c) { return c(node.argument, st, "Expression"); };
+base.TryStatement = function (node, st, c) {
+ c(node.block, st, "Statement");
+ if (node.handler) { c(node.handler, st); }
+ if (node.finalizer) { c(node.finalizer, st, "Statement"); }
+};
+base.CatchClause = function (node, st, c) {
+ c(node.param, st, "Pattern");
+ c(node.body, st, "ScopeBody");
+};
+base.WhileStatement = base.DoWhileStatement = function (node, st, c) {
+ c(node.test, st, "Expression");
+ c(node.body, st, "Statement");
+};
+base.ForStatement = function (node, st, c) {
+ if (node.init) { c(node.init, st, "ForInit"); }
+ if (node.test) { c(node.test, st, "Expression"); }
+ if (node.update) { c(node.update, st, "Expression"); }
+ c(node.body, st, "Statement");
+};
+base.ForInStatement = base.ForOfStatement = function (node, st, c) {
+ c(node.left, st, "ForInit");
+ c(node.right, st, "Expression");
+ c(node.body, st, "Statement");
+};
+base.ForInit = function (node, st, c) {
+ if (node.type == "VariableDeclaration") { c(node, st); }
+ else { c(node, st, "Expression"); }
+};
+base.DebuggerStatement = ignore;
+
+base.FunctionDeclaration = function (node, st, c) { return c(node, st, "Function"); };
+base.VariableDeclaration = function (node, st, c) {
+ for (var i = 0, list = node.declarations; i < list.length; i += 1)
+ {
+ var decl = list[i];
+
+ c(decl, st);
+ }
+};
+base.VariableDeclarator = function (node, st, c) {
+ c(node.id, st, "Pattern");
+ if (node.init) { c(node.init, st, "Expression"); }
+};
+
+base.Function = function (node, st, c) {
+ if (node.id) { c(node.id, st, "Pattern"); }
+ for (var i = 0, list = node.params; i < list.length; i += 1)
+ {
+ var param = list[i];
+
+ c(param, st, "Pattern");
+ }
+ c(node.body, st, node.expression ? "ScopeExpression" : "ScopeBody");
+};
+// FIXME drop these node types in next major version
+// (They are awkward, and in ES6 every block can be a scope.)
+base.ScopeBody = function (node, st, c) { return c(node, st, "Statement"); };
+base.ScopeExpression = function (node, st, c) { return c(node, st, "Expression"); };
+
+base.Pattern = function (node, st, c) {
+ if (node.type == "Identifier")
+ { c(node, st, "VariablePattern"); }
+ else if (node.type == "MemberExpression")
+ { c(node, st, "MemberPattern"); }
+ else
+ { c(node, st); }
+};
+base.VariablePattern = ignore;
+base.MemberPattern = skipThrough;
+base.RestElement = function (node, st, c) { return c(node.argument, st, "Pattern"); };
+base.ArrayPattern = function (node, st, c) {
+ for (var i = 0, list = node.elements; i < list.length; i += 1) {
+ var elt = list[i];
+
+ if (elt) { c(elt, st, "Pattern"); }
+ }
+};
+base.ObjectPattern = function (node, st, c) {
+ for (var i = 0, list = node.properties; i < list.length; i += 1)
+ {
+ var prop = list[i];
+
+ c(prop.value, st, "Pattern");
+ }
+};
+
+base.Expression = skipThrough;
+base.ThisExpression = base.Super = base.MetaProperty = ignore;
+base.ArrayExpression = function (node, st, c) {
+ for (var i = 0, list = node.elements; i < list.length; i += 1) {
+ var elt = list[i];
+
+ if (elt) { c(elt, st, "Expression"); }
+ }
+};
+base.ObjectExpression = function (node, st, c) {
+ for (var i = 0, list = node.properties; i < list.length; i += 1)
+ {
+ var prop = list[i];
+
+ c(prop, st);
+ }
+};
+base.FunctionExpression = base.ArrowFunctionExpression = base.FunctionDeclaration;
+base.SequenceExpression = base.TemplateLiteral = function (node, st, c) {
+ for (var i = 0, list = node.expressions; i < list.length; i += 1)
+ {
+ var expr = list[i];
+
+ c(expr, st, "Expression");
+ }
+};
+base.UnaryExpression = base.UpdateExpression = function (node, st, c) {
+ c(node.argument, st, "Expression");
+};
+base.BinaryExpression = base.LogicalExpression = function (node, st, c) {
+ c(node.left, st, "Expression");
+ c(node.right, st, "Expression");
+};
+base.AssignmentExpression = base.AssignmentPattern = function (node, st, c) {
+ c(node.left, st, "Pattern");
+ c(node.right, st, "Expression");
+};
+base.ConditionalExpression = function (node, st, c) {
+ c(node.test, st, "Expression");
+ c(node.consequent, st, "Expression");
+ c(node.alternate, st, "Expression");
+};
+base.NewExpression = base.CallExpression = function (node, st, c) {
+ c(node.callee, st, "Expression");
+ if (node.arguments)
+ { for (var i = 0, list = node.arguments; i < list.length; i += 1)
+ {
+ var arg = list[i];
+
+ c(arg, st, "Expression");
+ } }
+};
+base.MemberExpression = function (node, st, c) {
+ c(node.object, st, "Expression");
+ if (node.computed) { c(node.property, st, "Expression"); }
+};
+base.ExportNamedDeclaration = base.ExportDefaultDeclaration = function (node, st, c) {
+ if (node.declaration)
+ { c(node.declaration, st, node.type == "ExportNamedDeclaration" || node.declaration.id ? "Statement" : "Expression"); }
+ if (node.source) { c(node.source, st, "Expression"); }
+};
+base.ExportAllDeclaration = function (node, st, c) {
+ c(node.source, st, "Expression");
+};
+base.ImportDeclaration = function (node, st, c) {
+ for (var i = 0, list = node.specifiers; i < list.length; i += 1)
+ {
+ var spec = list[i];
+
+ c(spec, st);
+ }
+ c(node.source, st, "Expression");
+};
+base.ImportSpecifier = base.ImportDefaultSpecifier = base.ImportNamespaceSpecifier = base.Identifier = base.Literal = ignore;
+
+base.TaggedTemplateExpression = function (node, st, c) {
+ c(node.tag, st, "Expression");
+ c(node.quasi, st);
+};
+base.ClassDeclaration = base.ClassExpression = function (node, st, c) { return c(node, st, "Class"); };
+base.Class = function (node, st, c) {
+ if (node.id) { c(node.id, st, "Pattern"); }
+ if (node.superClass) { c(node.superClass, st, "Expression"); }
+ for (var i = 0, list = node.body.body; i < list.length; i += 1)
+ {
+ var item = list[i];
+
+ c(item, st);
+ }
+};
+base.MethodDefinition = base.Property = function (node, st, c) {
+ if (node.computed) { c(node.key, st, "Expression"); }
+ c(node.value, st, "Expression");
+};
+
+exports.simple = simple;
+exports.ancestor = ancestor;
+exports.recursive = recursive;
+exports.full = full;
+exports.fullAncestor = fullAncestor;
+exports.findNodeAt = findNodeAt;
+exports.findNodeAround = findNodeAround;
+exports.findNodeAfter = findNodeAfter;
+exports.findNodeBefore = findNodeBefore;
+exports.make = make;
+exports.base = base;
+
+Object.defineProperty(exports, '__esModule', { value: true });
+
+})));
+
+},{}]},{},[1]);