Commit Graph

469 Commits

Author SHA1 Message Date
Kadir Cetinkaya 9a74d9fcc6 [clang] Make sure codecompletion is called for calls even when inside a token.
Summary:
Currently CodeCompleteCall only gets called after a comma or parantheses. This
patch makes sure it is called even at the cases like:
```foo(1^);```

Reviewers: ilya-biryukov, ioeric, hokein

Reviewed By: ilya-biryukov

Subscribers: MaskRay, jkorous, arphaman, cfe-commits

Differential Revision: https://reviews.llvm.org/D51038

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@341824 91177308-0d34-0410-b5e6-96231b3b80d8
2018-09-10 13:46:28 +00:00
Ilya Biryukov 96b8b58101 [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

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@341660 91177308-0d34-0410-b5e6-96231b3b80d8
2018-09-07 14:04:39 +00:00
Ilya Biryukov 8cd8ed88f9 [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

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@341063 91177308-0d34-0410-b5e6-96231b3b80d8
2018-08-30 13:08:03 +00:00
Stephen Kelly 2dfd8132cf Port getLocEnd -> getEndLoc
Reviewers: teemperor!

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D50351

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@339386 91177308-0d34-0410-b5e6-96231b3b80d8
2018-08-09 21:09:38 +00:00
Stephen Kelly d7b659b592 Port getLocStart -> getBeginLoc
Reviewers: teemperor!

Subscribers: jholewinski, whisperity, jfb, cfe-commits

Differential Revision: https://reviews.llvm.org/D50350

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@339385 91177308-0d34-0410-b5e6-96231b3b80d8
2018-08-09 21:08:08 +00:00
Fangrui Song abdbb605f2 Remove trailing space
sed -Ei 's/[[:space:]]+$//' include/**/*.{def,h,td} lib/**/*.{cpp,h}

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@338291 91177308-0d34-0410-b5e6-96231b3b80d8
2018-07-30 19:24:48 +00:00
Alexander Shaposhnikov b813e9608d [Sema] Add fixit for unused lambda captures
This diff adds a fixit to suggest removing unused lambda captures 
in the appropriate diagnostic.

Patch by Andrew Comminos!

Test plan: make check-all

Differential revision: https://reviews.llvm.org/D48845


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@337148 91177308-0d34-0410-b5e6-96231b3b80d8
2018-07-16 07:23:47 +00:00
Erich Keane 74701fe1cf [NFC] Rename clang::AttributeList to clang::ParsedAttr
Since The type no longer contains the 'next' item anymore, it isn't a list,
so rename it to ParsedAttr to be more accurate.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@337005 91177308-0d34-0410-b5e6-96231b3b80d8
2018-07-13 15:07:47 +00:00
Erich Keane 829882796c AttributeList de-listifying:
Basically, "AttributeList" loses all list-like mechanisms, ParsedAttributes is
switched to use a TinyPtrVector (and a ParsedAttributesView is created to
have a non-allocating attributes list). DeclaratorChunk gets the later kind,
Declarator/DeclSpec keep ParsedAttributes.

Iterators are added to the ParsedAttribute types so that for-loops work.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@336945 91177308-0d34-0410-b5e6-96231b3b80d8
2018-07-12 21:09:05 +00:00
Richard Smith 2f412f2b98 Diagnose missing 'template' keywords in contexts where a comma is not a
binary operator.

Factor out the checking for a comma within potential angle brackets and
also call it from contexts where we parse a comma-separated list of
arguments or initializers.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@335699 91177308-0d34-0410-b5e6-96231b3b80d8
2018-06-27 01:32:04 +00:00
Richard Smith 8eed7850fc Diagnose missing 'template' keywords in more cases.
We track when we see a name-shaped expression followed by a '<' token
and parse the '<' as a comparison. Then:

 * if we see a token sequence that cannot possibly be an expression but
   can be a template argument (in particular, a type-id) that follows
   either a ',' or the '<', diagnose that the '<' was supposed to start
   a template argument list, and
 * if we see '>()', diagnose that the '<' was supposed to start a
   template argument list.

This only changes the diagnostic for error cases, and in practice
appears to catch the most common cases where a missing 'template'
keyword leads to parse errors within a template.

Differential Revision: https://reviews.llvm.org/D48571

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@335687 91177308-0d34-0410-b5e6-96231b3b80d8
2018-06-26 23:20:26 +00:00
Richard Smith 257046ff24 Restore pre-r335182 behavior for naming inherited constructors as
members of dependent contexts.

This permits cases where the names before and after the '::' in a
dependent inherited constructor using-declaration do not match, but
where we can nonetheless tell when parsing the template that a
constructor is being named. Under (open) core language DR 2070, such
cases will probably be ill-formed, but r335182 does not quite give
that result and didn't intend to change this, so restore the old
behavior for now.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@335381 91177308-0d34-0410-b5e6-96231b3b80d8
2018-06-22 19:50:19 +00:00
Richard Smith 39990b1e95 Related to PR37768: improve diagnostics for class name shadowing.
Diagnose the name of the class being shadowed by using declarations, and
improve the diagnostics for the case where the name of the class is
shadowed by a non-static data member in a class with constructors.  In
the latter case, we now always give the "member with the same name as
its class" diagnostic regardless of the relative order of the member and
the constructor, rather than giving an inscrutible diagnostic if the
constructor appears second.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@335182 91177308-0d34-0410-b5e6-96231b3b80d8
2018-06-20 21:58:20 +00:00
Richard Smith d00b55fa4e Improve diagnostics and error recovery for template name lookup.
For 'x::template y', consistently give a "no member named 'y' in 'x'"
diagnostic if there is no such member, and give a 'template keyword not
followed by a template' name error if there is such a member but it's not a
template. In the latter case, add a note pointing at the non-template.

Don't suggest inserting a 'template' keyword in 'X::Y<' if X is dependent
if the lookup of X::Y was actually not a dependent lookup and found only
non-templates.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@332076 91177308-0d34-0410-b5e6-96231b3b80d8
2018-05-11 02:43:08 +00:00
Adrian Prantl 647be32c60 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

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@331834 91177308-0d34-0410-b5e6-96231b3b80d8
2018-05-09 01:00:01 +00:00
Richard Smith 9067f8fb74 Implement P0482R2, support for char8_t type.
This is not yet part of any C++ working draft, and so is controlled by the flag
-fchar8_t rather than a -std= flag. (The GCC implementation is controlled by a
flag with the same name.)

This implementation is experimental, and will be removed or revised
substantially to match the proposal as it makes its way through the C++
committee.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@331244 91177308-0d34-0410-b5e6-96231b3b80d8
2018-05-01 05:02:45 +00:00
Richard Smith 497bb75060 Parse A::template B as an identifier rather than as a template-id with no
template arguments.

This fixes some cases where we'd incorrectly accept "A::template B" when B is a
kind of template that requires template arguments (in particular, a variable
template or a concept).


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@331013 91177308-0d34-0410-b5e6-96231b3b80d8
2018-04-27 02:00:13 +00:00
Zhihao Yuan edde3116ad [C++17] Allow an empty expression in an if init statement
Summary:
This fixes [PR35381](https://llvm.org/pr35381) and an additional bug where clang didn't warn about the C++17 extension when having an expression in the init statement.

Thanks Nicolas Lesser for contributing the patch.

Reviewers: rsmith

Reviewed By: rsmith

Subscribers: erik.pilkington, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D40445

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@327782 91177308-0d34-0410-b5e6-96231b3b80d8
2018-03-17 21:42:10 +00:00
Richard Smith 82ecd7e4b1 Add missing direct-init / parameter-declaration-clause disambiguation when
parsing a trailing-return-type of a (function pointer) variable declaration.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@324151 91177308-0d34-0410-b5e6-96231b3b80d8
2018-02-02 22:24:54 +00:00
Vedant Kumar 9ad8e839cc [Parse] Forward brace locations to TypeConstructExpr
When parsing C++ type construction expressions with list initialization,
forward the locations of the braces to Sema.

Without these locations, the code coverage pass crashes on the given test
case, because the pass relies on getLocEnd() returning a valid location.

Here is what this patch does in more detail:

  - Forwards init-list brace locations to Sema (ParseExprCXX),
  - Builds an InitializationKind with these locations (SemaExprCXX), and
  - Uses these locations for constructor initialization (SemaInit).

The remaining changes fall out of introducing a new overload for
creating direct-list InitializationKinds.

Testing: check-clang, and a stage2 coverage-enabled build of clang with
asserts enabled.

Differential Revision: https://reviews.llvm.org/D41921

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@322729 91177308-0d34-0410-b5e6-96231b3b80d8
2018-01-17 18:53:51 +00:00
Faisal Vali 1ae65827b5 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.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@321628 91177308-0d34-0410-b5e6-96231b3b80d8
2018-01-01 18:23:28 +00:00
Faisal Vali 9d3d610d05 [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



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@321622 91177308-0d34-0410-b5e6-96231b3b80d8
2018-01-01 15:42:13 +00:00
Faisal Vali 20f9e21530 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 ;)


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@321616 91177308-0d34-0410-b5e6-96231b3b80d8
2018-01-01 02:49:17 +00:00
Faisal Vali 8723ca6013 [NFC] Modernize enums TypeSpecifierWidth, TypeSpecifierSign & TypeSpecifierType into scoped enums.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@321614 91177308-0d34-0410-b5e6-96231b3b80d8
2018-01-01 02:19:52 +00:00
Faisal Vali 2d075f470b [NFC] Modernize enum DeclSpecContext into a scoped enum.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@321590 91177308-0d34-0410-b5e6-96231b3b80d8
2017-12-31 00:06:40 +00:00
Faisal Vali 0682d12e45 [NFC] Modernize enum 'UnqualifiedId::IdKind' into a scoped enum UnqualifiedIdKind.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@321574 91177308-0d34-0410-b5e6-96231b3b80d8
2017-12-30 04:15:27 +00:00
Faisal Vali ef699b2164 [NFC] Modernize enum Declarator::TheContext to a type-safe scoped enum.
Note, we don't do any bitwise manipulations when using them.







git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@321546 91177308-0d34-0410-b5e6-96231b3b80d8
2017-12-29 05:41:00 +00:00
Zhihao Yuan 879a8f700a Allow conditions to be decomposed with structured bindings
Summary:
This feature was discussed but not yet proposed.  It allows a structured binding to appear as a //condition//

    if (auto [ok, val] = f(...))

So the user can save an extra //condition// if the statement can test the value to-be-decomposed instead.  Formally, it makes the value of the underlying object of the structured binding declaration also the value of a //condition// that is an initialized declaration.

Considering its logicality which is entirely evident from its trivial implementation, I think it might be acceptable to land it as an extension for now before I write the paper.

Reviewers: rsmith, faisalv, aaron.ballman

Reviewed By: rsmith

Subscribers: aaron.ballman, cfe-commits

Differential Revision: https://reviews.llvm.org/D39284

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@320011 91177308-0d34-0410-b5e6-96231b3b80d8
2017-12-07 07:03:15 +00:00
Aaron Ballman 8873bce640 Now that C++17 is official (https://www.iso.org/standard/68564.html), start changing the C++1z terminology over to C++17. NFC intended, these are all mechanical changes.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@319688 91177308-0d34-0410-b5e6-96231b3b80d8
2017-12-04 20:27:34 +00:00
Richard Smith 8b60629816 [c++2a] P0515R3: Support for overloaded operator<=>.
No CodeGen support for MSABI yet, we don't know how to mangle this there.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@319513 91177308-0d34-0410-b5e6-96231b3b80d8
2017-12-01 02:13:10 +00:00
Jan Korous 0b7495e180 [Parser] Fix TryParseLambdaIntroducer() error handling
rdar://35066196

Differential Revision: https://reviews.llvm.org/D39419

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@317493 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-06 17:42:17 +00:00
Jan Korous 822590af31 Fix comment typo
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@317216 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-02 16:37:00 +00:00
Benjamin Kramer b9f6a1f43c Remove unused variables. No functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@315196 91177308-0d34-0410-b5e6-96231b3b80d8
2017-10-08 21:23:02 +00:00
Sjoerd Meijer 87063256b9 Recommit "Add _Float16 as a C/C++ source language type"
This is a recommit of r312781; in some build configurations
variable names are omitted, so changed the new regression
test accordingly.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@312794 91177308-0d34-0410-b5e6-96231b3b80d8
2017-09-08 15:15:00 +00:00
Sjoerd Meijer 185b81b1f8 Revert "Add _Float16 as a C/C++ source language type"
The clang-with-lto-ubuntu bot didn't like the new regression
test, revert while I investigate the issue.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@312784 91177308-0d34-0410-b5e6-96231b3b80d8
2017-09-08 10:20:52 +00:00
Sjoerd Meijer b9fefa5ec7 Add _Float16 as a C/C++ source language type
This adds _Float16 as a source language type, which is a 16-bit floating point
type defined in C11 extension ISO/IEC TS 18661-3.

In follow up patches documentation and more tests will be added.

Differential Revision: https://reviews.llvm.org/D33719


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@312781 91177308-0d34-0410-b5e6-96231b3b80d8
2017-09-08 09:42:32 +00:00
Volodymyr Sapsai 5730f5ad03 [Parser] Correct initalizer typos before lambda capture type is deduced.
This is the same assertion as in https://reviews.llvm.org/D25206 that is
triggered when RecordLayoutBuilder tries to compute the size of a field
(for capture "typo_boo" in the test case) whose type hasn't been
deduced.

The fix is to add CorrectDelayedTyposInExpr call to the cases when we
aren't disambiguating between an Obj-C message send and a lambda
expression.

rdar://problem/31760839

Reviewers: rsmith, ahatanak

Reviewed By: arphaman

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D36853


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@311480 91177308-0d34-0410-b5e6-96231b3b80d8
2017-08-22 17:55:19 +00:00
Richard Smith 0018aec614 Rename cxx1z -> cxx17 across all diagnostic IDs.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@310805 91177308-0d34-0410-b5e6-96231b3b80d8
2017-08-13 23:37:29 +00:00
Momchil Velikov 9a0efb9546 Place implictly declared functions at block scope
Such implicitly declared functions behave as if the enclosing block
contained the declaration extern int name() (C90, 6.3.3.2 Function calls),
thus their names should have block scope (C90, 6.1.2.1 Scope of identifiers).

This patch fixes https://bugs.llvm.org/show_bug.cgi?id=33224

Differential Revision: https://reviews.llvm.org/D33676



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@310616 91177308-0d34-0410-b5e6-96231b3b80d8
2017-08-10 15:43:06 +00:00
Faisal Vali 3da358854c [NFC, Refactor] Modernize TemplateIdAnnotation using TrailingObjects
A refactoring of TemplateIdAnnotation that uses TrailingObjects to create a variably-sized object on the heap.

https://reviews.llvm.org/D31414

Thanks to Aaron B for the review!



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@303594 91177308-0d34-0410-b5e6-96231b3b80d8
2017-05-23 01:07:12 +00:00
Richard Smith 00ba534163 Fix the location of "missing ';'" suggestions after annotation tokens.
We were incorrectly setting PrevTokLocation to the first token in the
annotation token instead of the last when consuming it. To fix this without
adding a complex switch to the hot path through ConsumeToken, we now have a
ConsumeAnnotationToken function for consuming annotation tokens in addition
to the other Consume*Token special case functions.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@303372 91177308-0d34-0410-b5e6-96231b3b80d8
2017-05-18 19:21:48 +00:00
Richard Smith 2d057e7c35 Changes missed from r302732.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@302737 91177308-0d34-0410-b5e6-96231b3b80d8
2017-05-10 21:47:30 +00:00
Faisal Vali 919ac41f65 [NFC, Scoped Enum] Convert Sema::ExpressionEvaluationContext into a scoped Enum
- also replace direct equality checks against the ConstantEvaluated enumerator  with isConstantEvaluted(), in anticipation of adding finer granularity to the various ConstantEvaluated contexts and reinstating certain restrictions on where lambda expressions can occur in C++17.

- update the clang tablegen backend that uses these Enumerators, and add the relevant scope where needed.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@299316 91177308-0d34-0410-b5e6-96231b3b80d8
2017-04-01 21:30:49 +00:00
Vassil Vassilev dc40846413 Publish RAIIObjectsForParser.h for external usage.
Some clients (eg the cling interpreter) need to recover their parser from
errors.

Patch by Axel Naumann (D31190)!


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@298606 91177308-0d34-0410-b5e6-96231b3b80d8
2017-03-23 15:11:07 +00:00
Matthias Gehre 8c121042c9 Implement DR 373 "Lookup on namespace qualified name in using-directive"
Summary:
3.4.6 [basic.lookup.udir] paragraph 1:
In a using-directive or namespace-alias-definition, during the lookup for a namespace-name or for a name in a nested-name-specifier, only namespace names are considered.

Reviewers: rsmith, aaron.ballman

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D30848

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@298126 91177308-0d34-0410-b5e6-96231b3b80d8
2017-03-17 21:41:20 +00:00
Richard Smith 774f90458c More fixes for places where 'decltype(auto)' is permitted in the C++ grammar but makes no sense.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@294509 91177308-0d34-0410-b5e6-96231b3b80d8
2017-02-08 20:39:08 +00:00
Richard Smith bb6cfd4252 Don't crash on 'decltype(auto)::'. Rather than treating it as a meaningless
nested-name-specifier (as the standard appears to require), treat it as the
type specifier 'decltype(auto)' followed by a nested-name-specifier starting
with '::'.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@294506 91177308-0d34-0410-b5e6-96231b3b80d8
2017-02-08 19:58:48 +00:00
Richard Smith b95354dce3 P0091R3: Implement basic parsing support for C++17 deduction-guides.
We model deduction-guides as functions with a new kind of name that identifies
the template whose deduction they guide; the bulk of this patch is adding the
new name kind. This gives us a clean way to attach an extensible list of guides
to a class template in a way that doesn't require any special handling in AST
files etc (and we're going to need these functions we come to performing
deduction).


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@294266 91177308-0d34-0410-b5e6-96231b3b80d8
2017-02-07 01:37:30 +00:00
Richard Smith fe32c6a334 PR0091R3: Implement parsing support for using templates as types.
This change adds a new type node, DeducedTemplateSpecializationType, to
represent a type template name that has been used as a type. This is modeled
around AutoType, and shares a common base class for representing a deduced
placeholder type.

We allow deduced class template types in a few more places than the standard
does: in conditions and for-range-declarators, and in new-type-ids. This is
consistent with GCC and with discussion on the core reflector. This patch
does not yet support deduced class template types being named in typename
specifiers.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@293207 91177308-0d34-0410-b5e6-96231b3b80d8
2017-01-26 20:40:47 +00:00
Richard Smith 8ae50eb5f4 Finish implementation of C++ DR1310 (http://wg21.link/cwg1310).
Diagnose the case when a dependent template name instantiates to an
injected-class-name outside a nested-name-specifier.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@292545 91177308-0d34-0410-b5e6-96231b3b80d8
2017-01-20 00:20:39 +00:00