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var acorn = require('acorn/dist/acorn_loose');
var walk = require("acorn/dist/walk");
window.onload = function () {
document.getElementById("parse").addEventListener("click",function(){
var ast = acorn.parse_dammit(document.getElementById("input").value).body[0];
document.getElementById("output").innerHTML = JSON.stringify(ast, null, "\t"); // Indented with tab
console.log(ast);
var flag = false;
var amtloops = 0;
walk.recursive(ast, null, {
Literal(node, state, c) {
console.log("literal");
},
Identifier(node, state, c){
if(state.called === true){
console.log("calls '"+node.name+"'");
}
},
// The beggining of an "object chain" (obj1.obj2().property.value......)
ExpressionStatement(node, state, c) {
c(node["expression"],{});
},
CallExpression(node, state, c) {
console.log("CallExpression");
c(node["callee"],{"called":true});
for(var i = 0; i < node.arguments.length; i++){
console.log(node.arguments[i]);
c(node.arguments[i],{});
}
},
MemberExpression(node, state, c){
if(state.called === true){
console.log("calls '"+node.property.name+"'");
}
c(node["object"],{});
},
ArrayExpression(node, state, c){
var len = 0;
try{
var temp = script.substring(node["start"],node["end"]);
len = JSON.parse(temp).length;
} catch(e){
console.warn("Invalid array?");
len = 99;
}
if(len > 50){
console.log("%c NONTRIVIAL: Array longer than 50 elements. ("+len+")","color:red");
flag = false;
}
},
ForInStatement(node, state, c){
console.log("ForInStatement");
amtloops++;
},
ForStatement(node, state, c){
console.log("ForStatement");
amtloops++;
},
DoWhileStatement(node, state, c){
console.log("DoWhileStatement");
amtloops++;
},
WhileStatement(node, state, c){
console.log("WhileStatement");
amtloops++;
},
IfStatement(node, state, c){
console.log("IfStatement");
c(node.test,{});
c(node.consequent,{});
amtloops++;
},
SwitchStatement(node, state, c){
console.log("SwitchStatement");
amtloops++;
}
});
if(flag == false){
return false;
}
if(amtloops > 3){
console.log("%c NONTRIVIAL: Too many loops/conditionals.","color:red");
return false;
}
});
}
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