603 Commits

Author SHA1 Message Date
Eric Liu
2bfd3f5eb7 [CodeComplete] Fix accessibility of protected members when accessing members implicitly.
Reviewers: ilya-biryukov

Subscribers: arphaman, cfe-commits

Differential Revision: https://reviews.llvm.org/D53369

llvm-svn: 344889
2018-10-22 08:47:31 +00:00
Eric Liu
b87c6eba2e [CodeComplete] Make sure keyword 'template' is added even when code pattern is disabled.
Reviewers: sammccall, hokein

Subscribers: arphaman, cfe-commits

Differential Revision: https://reviews.llvm.org/D53284

llvm-svn: 344509
2018-10-15 12:37:23 +00:00
Jonas Devlieghere
fc51490baf Lift VFS from clang to llvm (NFC)
This patch moves the virtual file system form clang to llvm so it can be
used by more projects.

Concretely the patch:
 - Moves VirtualFileSystem.{h|cpp} from clang/Basic to llvm/Support.
 - Moves the corresponding unit test from clang to llvm.
 - Moves the vfs namespace from clang::vfs to llvm::vfs.
 - Formats the lines affected by this change, mostly this is the result of
   the added llvm namespace.

RFC on the mailing list:
http://lists.llvm.org/pipermail/llvm-dev/2018-October/126657.html

Differential revision: https://reviews.llvm.org/D52783

llvm-svn: 344140
2018-10-10 13:27:25 +00:00
Sam McCall
aeb4b3e632 [CodeComplete] Fix crash when completing params function declarations.
Summary:
In a decl like `int AA(BB cc)` where BB isn't defined, we end up trying to
parse `BB cc` as an expression (vexing parse) and end up triggering the
parser's "recovery-in-function" completion with no actual function
scope.

This patch avoids the assumption that such a scope exists in this context.

Reviewers: kadircet

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D53070

llvm-svn: 344133
2018-10-10 10:51:48 +00:00
Eric Liu
b91e08197c [CodeComplete] Re-fix accessibilty of protected members from base class.
Summary:
The initial fix (r337453) had bug and was partially reverted (r338255).
This simplies the original fix by explicitly passing the naming class to the
completion consumer.

Reviewers: ilya-biryukov

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D52647

llvm-svn: 343575
2018-10-02 10:29:00 +00:00
Kadir Cetinkaya
ae45d0a4fd [clang] Implement Override Suggestions in Sema.
Summary:
In clangd we had a new type of completion suggestions for cpp
class/struct/unions that will show override signatures for virtual methods in
base classes. This patch implements it in sema because it is hard to deduce more
info about completion token outside of Sema and handle itchy cases.

See the patch D50898 for more info on the functionality.

In addition to above patch this one also converts the suggestion into a
CK_Pattern with whole insertion text as the name of the suggestion and factors
out CodeCompletionString generation for declerations so that it can be re-used
by others.

Reviewers: ioeric, ilya-biryukov

Reviewed By: ioeric

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D52225

llvm-svn: 343568
2018-10-02 09:42:31 +00:00
Sam McCall
3e4f5eb33c [CodeComplete] #include completion treats -I as non-system (require header-like extension).
llvm-svn: 343457
2018-10-01 11:56:42 +00:00
Eric Liu
88de9f6579 [Sema] Do not load macros from preamble when LoadExternal is false.
Reviewers: ilya-biryukov

Reviewed By: ilya-biryukov

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D52079

llvm-svn: 342528
2018-09-19 09:34:55 +00:00
Sam McCall
3d8051abb8 [CodeComplete] Add completions for filenames in #include directives.
Summary:
The dir component ("somedir" in #include <somedir/fo...>) is considered fixed.
We append "foo" to each directory on the include path, and then list its files.

Completions are of the forms:
 #include <somedir/fo^
                   foo.h>
                   fox/

The filter is set to the filename part ("fo"), so fuzzy matching can be
applied to the filename only.

No fancy scoring/priorities are set, and no information is added to
CodeCompleteResult to make smart scoring possible. Could be in future.

Reviewers: ilya-biryukov

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D52076

llvm-svn: 342449
2018-09-18 08:40:41 +00:00
Kadir Cetinkaya
84774c3ae3 [CodeCompletion] Enable signature help when initializing class/struct/union members.
Summary:
Factors out member decleration gathering and uses it in parsing to call signature
help. Doesn't support signature help for base class constructors, the code was too
coupled with diagnostic handling, but still can be factored out but just needs
more afford.

Reviewers: sammccall, ilya-biryukov, ioeric

Reviewed By: ilya-biryukov

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D51917

llvm-svn: 341949
2018-09-11 15:02:18 +00:00
Ilya Biryukov
832c4afe00 [CodeComplete] Clearly distinguish signature help and code completion.
Summary:
Code completion in clang is actually a mix of two features:
- Code completion is a familiar feature. Results are exposed via the
  CodeCompleteConsumer::ProcessCodeCompleteResults callback.
- Signature help figures out if the current expression is an argument of
  some function call and shows corresponding signatures if so.
  Results are exposed via CodeCompleteConsumer::ProcessOverloadCandidates.

This patch refactors the implementation to untangle those two from each
other and makes some naming tweaks to avoid confusion when reading the
code.

The refactoring is required for signature help fixes, see D51038.

The only intended behavior change is the order of callbacks.
ProcessOverloadCandidates is now called before ProcessCodeCompleteResults.

Reviewers: sammccall, kadircet

Reviewed By: sammccall

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D51782

llvm-svn: 341660
2018-09-07 14:04:39 +00:00
Eric Liu
d485df17d5 [Sema] Store MacroInfo in CodeCompletionResult for macro results.
Summary:
This provides information about the macro definition. For example, it
can be used to compute macro USRs.

Reviewers: sammccall

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D51675

llvm-svn: 341476
2018-09-05 14:59:17 +00:00
Ilya Biryukov
2fab235316 [CodeComplete] Report location of opening parens for signature help
Summary: Used in clangd.

Reviewers: sammccall

Reviewed By: sammccall

Subscribers: ioeric, kadircet, cfe-commits

Differential Revision: https://reviews.llvm.org/D51436

llvm-svn: 341063
2018-08-30 13:08:03 +00:00
Ilya Biryukov
55b1b157b6 [CodeComplete] Fix the crash in code completion on access checking
Started crashing in r337453. See the added test case for the crash repro.

The fix reverts part of r337453 that causes the crash and does
not actually break anything when reverted.

llvm-svn: 338255
2018-07-30 15:19:05 +00:00
Richard Smith
ef6c43dc0c Refactor checking of switch conditions and case values.
Check each case value in turn while parsing it, performing the
conversion to the switch type within the context of the expression
itself. This will become necessary in order to properly handle cleanups
for temporaries created as part of the case label (in an upcoming
patch). For now it's just good hygiene.

This necessitates moving the checking for the switch condition itself to
earlier, so that the destination type is available when checking the
case labels.

As a nice side-effect, we get slightly improved diagnostic quality and
error recovery by separating the case expression checking from the case
statement checking and from tracking whether there are discarded case
labels.

llvm-svn: 338056
2018-07-26 18:41:30 +00:00
Eric Liu
18b404a521 [CodeComplete] Fix accessibilty of protected members from base class.
Summary:
Currently, protected members from base classes are marked as
inaccessible when completing in derived class. This patch fixes the problem by
setting the naming class correctly when looking up results in base class
according to [11.2.p5].

Reviewers: aaron.ballman, sammccall, rsmith

Reviewed By: aaron.ballman

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D49421

llvm-svn: 337453
2018-07-19 13:32:00 +00:00
Kirill Bobyrev
47d7f52dea [clangd] Uprank delcarations when "using q::name" is present in the main file
Having `using qualified::name;` for some symbol is an important signal
for clangd code completion as the user is more likely to use such
symbol.  This patch helps to uprank the relevant symbols by saving
UsingShadowDecl in the new field of CodeCompletionResult and checking
whether the corresponding UsingShadowDecl is located in the main file
later in ClangD code completion routine. While the relative importance
of such signal is a subject to change in the future, this patch simply
bumps DeclProximity score to the value of 1.0 which should be enough for
now.

The patch was tested using

`$ ninja check-clang check-clang-tools`

No unexpected failures were noticed after running the relevant testsets.

Reviewers: sammccall, ioeric

Subscribers: MaskRay, jkorous, cfe-commits

Differential Revision: https://reviews.llvm.org/D49012

llvm-svn: 336810
2018-07-11 14:49:49 +00:00
Eric Liu
00f43c959d [SemaCodeComplete] Expose a method to create CodeCompletionString for macros.
Summary:
The method only takes PPreprocessor and don't require structures that
might not be available (e.g. Sema and ASTContext) when CodeCompletionString
needs to be generated for macros.

Reviewers: sammccall

Reviewed By: sammccall

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D48973

llvm-svn: 336427
2018-07-06 09:43:57 +00:00
Kirill Bobyrev
7cf29bc028 [NFS] Wipe trailing whitespaces
This patch is a preparation for another one containing meaningful
changes. This patch simply removes trailing whitespaces in few files
affected by the upcoming patch and reformats

llvm-svn: 336330
2018-07-05 09:37:26 +00:00
Eric Liu
f5ba09f74b [SemaCodeComplete] Make sure visited contexts are passed to completion results handler.
Reviewers: ilya-biryukov

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D48917

llvm-svn: 336255
2018-07-04 10:01:18 +00:00
Ivan Donchevskii
b4670fc777 Optionally add code completion results for arrow instead of dot
Currently getting such completions requires source correction, reparsing
and calling completion again. And if it shows no results and rollback is
required then it costs one more reparse.

With this change it's possible to get all results which can be later
filtered to split changes which require correction.

Differential Revision: https://reviews.llvm.org/D41537

llvm-svn: 333272
2018-05-25 12:56:26 +00:00
Richard Smith
7b301e2410 Switch a couple of users of LangOpts::GNUMode to the more appropriate LangOpts::GNUKeywords.
llvm-svn: 333233
2018-05-24 21:51:52 +00:00
Ilya Biryukov
a3f955bddb [CodeComplete] Expose helpers to get RawComment of completion result.
Summary: Used in clangd, see D45999.

Reviewers: sammccall, hokein, ioeric, arphaman

Reviewed By: sammccall

Subscribers: arphaman, cfe-commits

Differential Revision: https://reviews.llvm.org/D46001

llvm-svn: 332457
2018-05-16 12:30:01 +00:00
Ilya Biryukov
fb9dde7040 [CodeComplete] Provide completion in decls even for incomplete types
Summary:
This change fixes lack of completions in the following case
('^'designates completion points) :

    void f(^);
    struct Incomplete;
    Incomplete g(^);

Reviewers: bkramer, aaron.ballman, sammccall

Reviewed By: aaron.ballman

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D46639

llvm-svn: 332244
2018-05-14 13:50:36 +00:00
Adrian Prantl
9fc8faf9e6 Remove \brief commands from doxygen comments.
This is similar to the LLVM change https://reviews.llvm.org/D46290.

We've been running doxygen with the autobrief option for a couple of
years now. This makes the \brief markers into our comments
redundant. Since they are a visual distraction and we don't want to
encourage more \brief markers in new code either, this patch removes
them all.

Patch produced by

for i in $(git grep -l '\@brief'); do perl -pi -e 's/\@brief //g' $i & done
for i in $(git grep -l '\\brief'); do perl -pi -e 's/\\brief //g' $i & done

Differential Revision: https://reviews.llvm.org/D46320

llvm-svn: 331834
2018-05-09 01:00:01 +00:00
Alexander Kornienko
2a8c18d991 Fix typos in clang
Found via codespell -q 3 -I ../clang-whitelist.txt
Where whitelist consists of:

  archtype
  cas
  classs
  checkk
  compres
  definit
  frome
  iff
  inteval
  ith
  lod
  methode
  nd
  optin
  ot
  pres
  statics
  te
  thru

Patch by luzpaz! (This is a subset of D44188 that applies cleanly with a few
files that have dubious fixes reverted.)

Differential revision: https://reviews.llvm.org/D44188

llvm-svn: 329399
2018-04-06 15:14:32 +00:00
George Burgess IV
00f70bd933 Remove redundant casts. NFC
So I wrote a clang-tidy check to lint out redundant `isa`, `cast`, and
`dyn_cast`s for fun. This is a portion of what it found for clang; I
plan to do similar cleanups in LLVM and other subprojects when I find
time.

Because of the volume of changes, I explicitly avoided making any change
that wasn't highly local and obviously correct to me (e.g. we still have
a number of foo(cast<Bar>(baz)) that I didn't touch, since overloading
is a thing and the cast<Bar> did actually change the type -- just up the
class hierarchy).

I also tried to leave the types we were cast<>ing to somewhere nearby,
in cases where it wasn't locally obvious what we were dealing with
before.

llvm-svn: 326416
2018-03-01 05:43:23 +00:00
Sam McCall
63c5972039 [CodeComplete] Omit templated constructors from member list too.
Also avoid printing a 'void' return type for constructor expressions.

llvm-svn: 323148
2018-01-22 20:44:47 +00:00
Haojian Wu
10d95c53af [Sema] Add visited contexts to CodeCompleteContext
Summary:
This would allow code completion clients to know which context is visited during Sema code completion.

Also some changes:
 * add `EnteredContext` callback in VisibleDeclConsumer.
 * add a simple unittest for sema code completion (only for visited contexts at the moment).

Reviewers: ilya-biryukov

Reviewed By: ilya-biryukov

Subscribers: mgorny, bkramer, cfe-commits

Differential Revision: https://reviews.llvm.org/D42071

llvm-svn: 322661
2018-01-17 14:29:25 +00:00
Sam McCall
bb2cf63b32 [CodeComplete] Add an option to omit results from the preamble.
Summary:
Enumerating the contents of a namespace or global scope will omit any
decls that aren't already loaded, instead of deserializing them from the
PCH.

This allows a fast hybrid code completion where symbols from headers are
provided by an external index. (Sema already exposes the information
needed to do a reasonabl job of filtering them).
Clangd plans to implement this hybrid.

This option is just a hint - callers still need to postfilter results if
they want to *avoid* completing decls outside the main file.

Reviewers: bkramer, ilya-biryukov

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D41989

llvm-svn: 322371
2018-01-12 14:51:47 +00:00
Faisal Vali
090da2d1ac Again reverting an attempt to convert the DeclSpec enums into scoped enums.
- reverts r321622, r321625, and r321626.
  - the use of bit-fields is still resulting in warnings - even though we can use static-asserts to harden the code and ensure the bit-fields are wide enough.  The bots still complain of warnings being seen.
  - to silence the warnings requires specifying the bit-fields with the underlying enum type (as opposed to the enum type itself), which then requires lots of unnecessary static casts of each enumerator within DeclSpec to the underlying-type, which even though could be seen as implementation details, it does hamper readability - and given the additional litterings, makes me question the value of the change.

So in short - I give up (for now at least).  

Sorry about the noise.

llvm-svn: 321628
2018-01-01 18:23:28 +00:00
Faisal Vali
038df49033 [NFC] Modernize enums TypeSpecifierWidth, TypeSpecifierSign & TypeSpecifierType into scoped enums with underlying types.
- Since these enums are used as bit-fields - for the bit-fields to be interpreted as unsigned, the underlying type must be specified as unsigned.

Previous failed attempt - wherein I did not specify an underlying type - was the sum of:
https://reviews.llvm.org/rC321614
https://reviews.llvm.org/rC321615

llvm-svn: 321622
2018-01-01 15:42:13 +00:00
Faisal Vali
c535adcfc5 Revert r321614 and r321615
- the enum changes to TypeSpecifierType are breaking some tests - and will require a more careful integration.

Sorry about rushing these changes - thought I could sneak them in prior to heading out for new years ;)

llvm-svn: 321616
2018-01-01 02:49:17 +00:00
Faisal Vali
8736dee017 [NFC] Modernize enums TypeSpecifierWidth, TypeSpecifierSign & TypeSpecifierType into scoped enums.
llvm-svn: 321614
2018-01-01 02:19:52 +00:00
Faisal Vali
421b2d1d8e [NFC] Modernize enum Declarator::TheContext to a type-safe scoped enum.
Note, we don't do any bitwise manipulations when using them.

llvm-svn: 321546
2017-12-29 05:41:00 +00:00
Adrian Prantl
f3b3ccda59 Silence a bunch of implicit fallthrough warnings
llvm-svn: 321115
2017-12-19 22:06:11 +00:00
Benjamin Kramer
acfa339e15 Refactor overridden methods iteration to avoid double lookups.
Convert most uses to range-for loops. No functionality change intended.

llvm-svn: 320954
2017-12-17 23:52:45 +00:00
Eric Liu
fead6ae660 [Sema] Ignore decls in namespaces when global decls are not wanted.
Summary: ... in qualified code completion and decl lookup.

Reviewers: ilya-biryukov, arphaman

Reviewed By: ilya-biryukov

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D40562

llvm-svn: 320563
2017-12-13 10:26:49 +00:00
Eric Liu
06d3402816 [SemaCodeComplete] Allow passing out scope specifiers in qualified-id completions via completion context.
Reviewers: ilya-biryukov, arphaman

Reviewed By: arphaman

Subscribers: nik, cfe-commits

Differential Revision: https://reviews.llvm.org/D40563

llvm-svn: 320471
2017-12-12 11:35:46 +00:00
Alex Lorenz
f3df1f7bf1 [completion] complete ObjC interface names in an expression
Objective-C interfaces can be used in a class property expression.

rdar://26982192

llvm-svn: 318129
2017-11-14 01:46:24 +00:00
Ilya Biryukov
b5da91c875 Avoid printing some redundant name qualifiers in completion
Summary:
Adjusted PrintingPolicy inside code completion to avoid printing some
redundant name qualifiers.

Before this change, typedefs that were written unqualified in source
code were printed with qualifiers in completion. For example, in the
following code

    struct foo {
        typedef int type;
        type method();
    };

completion item for `method` had return type of `foo::type`, even
though the original code used `type` without qualifiers.
After this change, the completion item has return type `type`, as
originally written in the source code.

Note that this change does not suppress qualifiers written by the
user. For example, in the following code

    typedef int type;
    struct foo {
        typedef int type;
        ::type method(foo::type);
    };

completion item for `method` has return type of `::type` and
parameter type of `foo::type`, as originally written in the source
code.

Reviewers: arphaman, bkramer, klimek

Reviewed By: arphaman

Subscribers: mgorny, eraman, cfe-commits

Differential Revision: https://reviews.llvm.org/D38538

llvm-svn: 317677
2017-11-08 10:39:09 +00:00
Ivan Donchevskii
13d9054d2c Test commit
llvm-svn: 316758
2017-10-27 11:05:40 +00:00
Benjamin Kramer
e3962aebca Fix overloaded static functions in SemaCodeComplete
https://bugs.llvm.org/show_bug.cgi?id=33904
Happens when static function is accessed via the class variable. That leads to incorrect overloads number because the variable is considered as the first argument.

struct Bar {
  static void foo(); static void foo(int);
};

int main() {
  Bar b;
  b.foo(/*complete here*/); // did not work before
  Bar::foo(/*complete here*/); // worked fine
}

Patch by Ivan Donchevskii!

Differential Revision: https://reviews.llvm.org/D36390

llvm-svn: 316646
2017-10-26 08:41:28 +00:00
Alex Lorenz
b874042e32 [code completion] Complete ObjC methods in @implementation without leading
'-'/'+' prefix

rdar://12040840

llvm-svn: 316458
2017-10-24 16:39:37 +00:00
Erik Verbruggen
6524c05d2c Do not add a colon chunk to the code completion of class inheritance access modifiers
With enabled CINDEXTEST_CODE_COMPLETE_PATTERNS env option (which enables
IncludeCodePatterns in completion options) code completion after colon
currently suggests access modifiers with 2 completion chunks which is
incorrect.

Example:
class A : <Cursor>B
{
}

Currently we get 'NotImplemented:{TypedText public}{Colon :} (40)'
but the correct line is just 'NotImplemented:{TypedText public} (40)'

The fix introduces more specific scope that occurs between ':' and '{'
It allows us to determine when we don't need to add ':' as a second
chunk to the public/protected/private access modifiers.

Patch by Ivan Donchevskii!

Differential Revision: https://reviews.llvm.org/D38618

llvm-svn: 316436
2017-10-24 13:46:58 +00:00
Richard Smith
67ef14fe48 Resolve a defect in C++17 copy omission.
When selecting constructors for initializing an object of type T from a single
expression of class type U, also consider conversion functions of U that
convert to T (rather than modeling such conversions as calling a conversion
function and then calling a constructor).

This approach is proposed as the resolution for the defect, and is also already
implemented by GCC.

llvm-svn: 314231
2017-09-26 18:37:55 +00:00
Ilya Biryukov
4e7a6fef81 Set completion priority of destructors and operators to CCP_Unlikely.
Summary:
It will move destructors and operators to the end of completion list.
Destructors and operators are currently very high on the completion
list, as they have the same priority as member functions. However,
they are clearly not something users usually choose in completion
lists.

Reviewers: arphaman, erikjv, bkramer, krasimir

Reviewed By: arphaman

Subscribers: eraman, klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D38081

llvm-svn: 314019
2017-09-22 19:07:37 +00:00
Erik Verbruggen
7ec9107fdc Don't show deleted function (constructor) candidates for code completion
In case of copy constructor is implicitly deleted it's still shown.
PR34402 describes a way to reproduce that.

Patch by Ivan Donchevskii!

Differential Revision: https://reviews.llvm.org/D37435

llvm-svn: 312785
2017-09-08 10:23:08 +00:00
Ilya Biryukov
b6d1ec8073 Fixed failing assert in code completion.
Summary:
The code was accessing uninstantiated default argument.
This resulted in failing assertion at ParmVarDecl::getDefaultArg().

Reviewers: erikjv, klimek, bkramer, krasimir

Reviewed By: krasimir

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D35682

llvm-svn: 308722
2017-07-21 09:24:00 +00:00
Erik Verbruggen
797980e0aa Fix compilation problem introduced in r308433
llvm-svn: 308438
2017-07-19 11:15:36 +00:00