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Accumulate explicitly which modules to load for 'attachInstances'
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The old approach to fixing #469, while correct, consumes a lot of
memory. We ended up with a HUGE 'GblRdrEnv' in 'ic_rn_gbl_env'. However,
'getNameToInstancesIndex' takes that environment and compresses it down
to a much smaller 'ModuleSet'.
Now, we compute that 'ModuleSet' explicitly as we process modules. That
way we can just tell 'getNameToInstancesIndex' what modules to load
(instead of it trying to compute that information from the interactive
context).
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This token is necessary for parsing #line pragmas inside nested comments.
Reviewers: bgamari
Reviewed By: bgamari
Differential Revision: https://phabricator.haskell.org/D4935
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* Support for type families in LaTeX
The code is ported over from the XHTML backend.
* Refactor XHTML and LaTeX family handling
This is mostly a consolidation effort: stripping extra exports,
inlining some short definitions, and trying to make the backends
match.
The LaTeX backend now has preliminary support for data families,
although the only the data instance head is printed (not the actual constructors).
Both backends also now use "newtype" for newtype data family
instances.
* Add some tests
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After GHC commit
http://git.haskell.org/ghc.git/commit/f265008fb6f70830e7e92ce563f6d83833cef071
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This means `haddock-test` might
* crash during deserialization
* deserialize incorrectly
Still - it means things _might_ work where they were previously sure
not to.
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the same type
This also changes the defaulting heuristic for ambiguous identifiers.
We now prefer local names primarily, and type constructors or class
names secondarily.
Partially fixes #854.
(cherry picked from commit d504a2864a4e1982e142cf88c023e7caeea3b76f)
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(cherry picked from commit 73707ed58d879cc04cb644c5dab88c39ca1465b7)
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The problem manifests itself in instances that are defined in
modules other than the module where the class is defined. The fix
is just to thread through the 'Module' of the instance further
along.
Since orphan instances appear to already have been working, I didn't
do anything there.
(cherry picked from commit 2de7c2acf9b1ec85b09027a8bb58bf8512e91c05)
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* Preserve docs on type family instances
The only problem was that the instance location was slightly off
for type family instances.
* Accept output
(cherry picked from commit 133e9c2c168db19c1135479f7ab144c4e33af2a4)
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* tyThingToLHsDecls: Preserve type synonyms that contain a forall
Fixes #879.
* Add Note [Invariant: Never expand type synonyms]
* Clarify Note [Invariant: Never expand type synonyms]
(cherry picked from commit c3eb3f0581f69e816f9453b1747a9f2a3ba02bb9)
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* Avoid line breaks due to line length in Hoogle
Hoogle operates in a line-oriented fashion, so we should avoid ever
breaking due to long lines.
One way of doing this non-intrusively is to modify the 'DynFlags' that
are threaded through the 'Hoogle' module (note this is anyways only
passed through for use in the various 'showSDoc' functions).
* Amend test case
(cherry picked from commit 657b1b3d519545f8d4ca048c06210d6cbf0f0da0)
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This exports fixities for more things, including class methods and
type-level operators.
(cherry picked from commit 88316b972e3d47197b1019111bae0f7f87275fce)
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* Fix type parenthesization in Hoogle backend
Ported the logic in the HTML and LaTeX backends for adding in parens
into something top-level in 'GhcUtil'. Calling that from the Hoogle
backend fixes #873.
* Remove parenthesizing logic from LaTeX and XHTML backends
Now, the only times that parenthesis in types are added in any backend
is through the explicit 'HsParTy' constructor. Precedence is also
represented as its own datatype.
* List out cases explicitly vs. catch-all
* Fix printing of parens for QuantifiedConstraints
The priority of printing 'forall' types was just one too high.
Fixes #877.
* Accept HTML output for quantified contexts test
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Trac #15386
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* Renamer: Warn about ambiguous identifiers
Example:
Warning: 'elem' is ambiguous. It is defined
* in ‘Data.Foldable’
* at /home/simon/tmp/hdk/src/Lib.hs:7:1
You may be able to disambiguate the identifier by qualifying it or
by hiding some imports.
Defaulting to 'elem' defined at /home/simon/tmp/hdk/src/Lib.hs:7:1
Fixes #830.
* Deduplicate warnings
Fixes #832.
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'spanToNewline' is used to help break apart the source into lines which
can then be partioned into CPP and non-CPP chunks. It is important that
'spanToNewline' not break apart tokens, so it needs to properly handle
things like
* block comments, possibly nested
* string literals, possibly multi-line
* CPP macros, possibly multi-line
String literals in particular were not being properly handled. The fix
is to to fall back in 'Text.Read.lex' to help lex things that are not
comments.
Fixes #837.
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* Fix minimal pragma handling
Class declarations contain 'ClassOpSig' not 'Typesig'. This should fix #834.
* Accept html-test output
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Since the hyperlinker backend now relies on the GHC tokenizer, something
like 'Bar.Baz.foo' already gets bunched together into one token (as
opposed to being spread across 'Bar', '.', 'Baz', '.', and 'foo').
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This prevents spurious lines from appearing in the final output.
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This fixes #836.
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Removing HasSourceText and SourceTextX classes.
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(cherry picked from commit 86292c54bfee2343aee84559ec01f1fc68f52231)
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ghc-head
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Without a complete environment, we will miss some instances that were
encountered during typechecking.
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The GHC-side `getNameToInstancesIndex` filters out incorrectly some
instances because it is not aware of what modules are visible. On the
Haddock side, we need to pass in the modules we are processing.
On the GHC side, we need to check against _those_ modules when checking
if an instance is visible.
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