| Commit message (Collapse) | Author | Age | Files | Lines |
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Summary: Fixed extraneous matches of non-NullStmt
Reviewers: aaron.ballman, rsmith, efriedma, xbolva00
Reviewed By: aaron.ballman, rsmith, xbolva00
Subscribers: riccibruno, arphaman, ziangwan, ojeda, xbolva00, nickdesaulniers, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D64838
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@369414 91177308-0d34-0410-b5e6-96231b3b80d8
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Now that we've moved to C++14, we no longer need the llvm::make_unique
implementation from STLExtras.h. This patch is a mechanical replacement
of (hopefully) all the llvm::make_unique instances across the monorepo.
Differential revision: https://reviews.llvm.org/D66259
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@368942 91177308-0d34-0410-b5e6-96231b3b80d8
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Ignore trailing NullStmts in compound expressions when determining the result type and value. This is to match the GCC behavior which ignores semicolons at the end of compound expressions.
Patch by Dominic Ferreira.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@365498 91177308-0d34-0410-b5e6-96231b3b80d8
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CorrectionCandidateCallback unless we are going to do some typo correction
The various CorrectionCandidateCallbacks are currently heap-allocated
unconditionally. This was needed because of delayed typo correction.
However these allocations represent currently 15.4% of all allocations
(number of allocations) when parsing all of Boost (!), mostly because
of ParseCastExpression, ParseStatementOrDeclarationAfterAttrtibutes
and isCXXDeclarationSpecifier. Note that all of these callback objects
are small. Let's not do this.
Instead initially allocate the callback on the stack, and only do a
heap allocation if we are going to do some typo correction. Do this by:
1. Adding a clone function to each callback, which will do a polymorphic
clone of the callback. This clone function is required to be implemented
by every callback (of which there is a fair amount). Make sure this is
the case by making it pure virtual.
2. Use this clone function when we are going to try to correct a typo.
This additionally cut the time of -fsyntax-only on all of Boost by 0.5%
(not that much, but still something). No functional changes intended.
Differential Revision: https://reviews.llvm.org/D58827
Reviewed By: rnk
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@356925 91177308-0d34-0410-b5e6-96231b3b80d8
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Summary:
https://reviews.llvm.org/D59076 added a new coroutine error that
prevented users from using 'co_await' or 'co_yield' within a exception
handler. However, it was reverted in https://reviews.llvm.org/rC356774
because it caused a regression in nested scopes in C++ catch statements,
as documented by https://bugs.llvm.org/show_bug.cgi?id=41171.
The issue was due to an incorrect use of a `clang::ParseScope`. To fix:
1. Add a regression test for catch statement parsing that mimics the bug
report from https://bugs.llvm.org/show_bug.cgi?id=41171.
2. Re-apply the coroutines error patch from
https://reviews.llvm.org/D59076, but this time with the correct
ParseScope behavior.
Reviewers: GorNishanov, tks2103, rsmith, riccibruno, jbulow
Reviewed By: riccibruno
Subscribers: EricWF, jdoerfert, lewissbaker, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D59752
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@356865 91177308-0d34-0410-b5e6-96231b3b80d8
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The commit https://reviews.llvm.org/rC356296 is causing a regression in nested
catch scopes, https://bugs.llvm.org/show_bug.cgi?id=41171. Revert this change
for now in order to un-break that problem report.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@356774 91177308-0d34-0410-b5e6-96231b3b80d8
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Summary:
As reported in https://bugs.llvm.org/show_bug.cgi?id=40978, it's an
error to use the `co_yield` or `co_await` keywords outside of a valid
"suspension context" as defined by [expr.await]p2 of
http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2018/n4775.pdf.
Whether or not the current scope was in a function-try-block's
(https://en.cppreference.com/w/cpp/language/function-try-block) handler
could be determined using scope flag `Scope::FnTryCatchScope`. No
such flag existed for a simple C++ catch statement, so this commit adds
one.
Reviewers: GorNishanov, tks2103, rsmith
Reviewed By: GorNishanov
Subscribers: EricWF, jdoerfert, cfe-commits, lewissbaker
Tags: #clang
Differential Revision: https://reviews.llvm.org/D59076
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@356296 91177308-0d34-0410-b5e6-96231b3b80d8
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expression is a discarded-value expression.
Summary:
We used to get this wrong in three ways:
1) During parsing, an expression-statement followed by the }) ending a
statement expression was always treated as producing the value of the
statement expression. That's wrong for ({ if (1) expr; })
2) During template instantiation, various kinds of statement (most
statements not appearing directly in a compound-statement) were not
treated as discarded-value expressions, resulting in missing volatile
loads (etc).
3) In all contexts, an expression-statement with attributes was not
treated as producing the value of the statement expression, eg
({ [[attr]] expr; }).
Also fix incorrect enforcement of OpenMP rule that directives can "only
be placed in the program at a position where ignoring or deleting the
directive would result in a program with correct syntax". In particular,
a label (be it goto, case, or default) should not affect whether
directives are permitted.
Reviewers: aaron.ballman, rjmccall
Subscribers: cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D57984
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@354090 91177308-0d34-0410-b5e6-96231b3b80d8
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Preferred types are used by code completion for ranking. This commit
considerably increases the number of points in code where those types
are propagated.
In order to avoid complicating signatures of Parser's methods, a
preferred type is kept as a member variable in the parser and updated
during parsing.
Differential revision: https://reviews.llvm.org/D56723
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@352788 91177308-0d34-0410-b5e6-96231b3b80d8
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to reflect the new license.
We understand that people may be surprised that we're moving the header
entirely to discuss the new license. We checked this carefully with the
Foundation's lawyer and we believe this is the correct approach.
Essentially, all code in the project is now made available by the LLVM
project under our new license, so you will see that the license headers
include that license only. Some of our contributors have contributed
code under our old license, and accordingly, we have retained a copy of
our old license notice in the top-level files in each project and
repository.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@351636 91177308-0d34-0410-b5e6-96231b3b80d8
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Rather than sprinkle calls to DiagnoseUnusedExprResult() around in places where we want diagnostics, we now diagnose unused expression statements and full expressions in a more generic way when acting on the final expression statement. This results in more appropriate diagnostics for [[nodiscard]] where we were previously lacking them, such as when the body of a for loop is not a compound statement.
This patch fixes PR39837.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@350404 91177308-0d34-0410-b5e6-96231b3b80d8
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struct LoopHint was only used within Parse and not in any of the Sema or
Codegen files. In the non-Parse files where it was included, it either wasn't
used or LoopHintAttr was used, so its inclusion did nothing.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@347728 91177308-0d34-0410-b5e6-96231b3b80d8
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Summary:
clang has `-Wextra-semi` (D43162), which is not dictated by the currently selected standard.
While that is great, there is at least one more source of need-less semis - 'null statements'.
Sometimes, they are needed:
```
for(int x = 0; continueToDoWork(x); x++)
; // Ugly code, but the semi is needed here.
```
But sometimes they are just there for no reason:
```
switch(X) {
case 0:
return -2345;
case 5:
return 0;
default:
return 42;
}; // <- oops
;;;;;;;;;;; <- OOOOPS, still not diagnosed. Clearly this is junk.
```
Additionally:
```
if(; // <- empty init-statement
true)
;
switch (; // empty init-statement
x) {
...
}
for (; // <- empty init-statement
int y : S())
;
}
As usual, things may or may not go sideways in the presence of macros.
While evaluating this diag on my codebase of interest, it was unsurprisingly
discovered that Google Test macros are *very* prone to this.
And it seems many issues are deep within the GTest itself, not
in the snippets passed from the codebase that uses GTest.
So after some thought, i decided not do issue a diagnostic if the semi
is within *any* macro, be it either from the normal header, or system header.
Fixes [[ https://bugs.llvm.org/show_bug.cgi?id=39111 | PR39111 ]]
Reviewers: rsmith, aaron.ballman, efriedma
Reviewed By: aaron.ballman
Subscribers: cfe-commits
Differential Revision: https://reviews.llvm.org/D52695
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@347339 91177308-0d34-0410-b5e6-96231b3b80d8
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We haven't supported compiling ObjC1 for a long time (and never will again), so
there isn't any reason to keep these separate. This patch replaces
LangOpts::ObjC1 and LangOpts::ObjC2 with LangOpts::ObjC.
Differential revision: https://reviews.llvm.org/D53547
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@345637 91177308-0d34-0410-b5e6-96231b3b80d8
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We don't yet support this for the case where a range-based for loop is
implicitly rewritten to an ObjC for..in statement.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@343350 91177308-0d34-0410-b5e6-96231b3b80d8
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information is then discarded with a warning to the user that we don't
support it.
This patch gets us one step closer by getting the info down into the
AST in most cases.
Reviewed by: rsmith
Differential Revision: https://reviews.llvm.org/D49865
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@339693 91177308-0d34-0410-b5e6-96231b3b80d8
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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
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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.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@338056 91177308-0d34-0410-b5e6-96231b3b80d8
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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
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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
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Summary: This revision disallows lambdas in template parameters, as reported in PR33696.
Reviewers: rsmith
Reviewed By: rsmith
Subscribers: cfe-commits
Differential Revision: https://reviews.llvm.org/D37442
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@336930 91177308-0d34-0410-b5e6-96231b3b80d8
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While clang allows declarations in for loop init statements in c89 and
gnu89, gcc does not. So, we should probably warn if users care about gcc
compatibility.
Differential Revision: https://reviews.llvm.org/D47840
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@335927 91177308-0d34-0410-b5e6-96231b3b80d8
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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
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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
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...and add some very basic stack trace entries for module building.
This would have helped track down rdar://problem/38434694 sooner.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@328276 91177308-0d34-0410-b5e6-96231b3b80d8
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We could in principle support such pack expansion, using techniques similar to
what we do for pack expansion of lambdas, but it's not clear it's worthwhile.
For now at least, cleanly reject these cases rather than crashing.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@324160 91177308-0d34-0410-b5e6-96231b3b80d8
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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
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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
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It seems this somehow made -Wempty-body fire in some macro cases where
it didn't before, e.g.
../../third_party/ffmpeg/libavcodec/bitstream.c(169,5): error: if statement has empty body [-Werror,-Wempty-body]
ff_dlog(NULL, "new table index=%d size=%d\n", table_index, table_size);
^
../../third_party/ffmpeg\libavutil/internal.h(276,80): note: expanded from macro 'ff_dlog'
# define ff_dlog(ctx, ...) do { if (0) av_log(ctx, AV_LOG_DEBUG, __VA_ARGS__); } while (0)
^
../../third_party/ffmpeg/libavcodec/bitstream.c(169,5): note: put the
semicolon on a separate line to silence this warning
Reverting until this can be figured out.
> Do not show it when `if` or `else` come from macros.
> E.g.,
>
> #define USED(A) if (A); else
> #define SOME_IF(A) if (A)
>
> void test() {
> // No warnings are shown in those cases now.
> USED(0);
> SOME_IF(0);
> }
>
> Patch by Ilya Biryukov!
>
> Differential Revision: https://reviews.llvm.org/D40185
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@318665 91177308-0d34-0410-b5e6-96231b3b80d8
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Do not show it when `if` or `else` come from macros.
E.g.,
#define USED(A) if (A); else
#define SOME_IF(A) if (A)
void test() {
// No warnings are shown in those cases now.
USED(0);
SOME_IF(0);
}
Patch by Ilya Biryukov!
Differential Revision: https://reviews.llvm.org/D40185
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@318556 91177308-0d34-0410-b5e6-96231b3b80d8
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rdar://35172419
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@316966 91177308-0d34-0410-b5e6-96231b3b80d8
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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
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git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@304479 91177308-0d34-0410-b5e6-96231b3b80d8
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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
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This is a recommit of r300539 that was reverted in r300543 due to test failures.
The original commit message is displayed below:
The new '#pragma clang attribute' directive can be used to apply attributes to
multiple declarations. An attribute must satisfy the following conditions to
be supported by the pragma:
- It must have a subject list that's defined in the TableGen file.
- It must be documented.
- It must not be late parsed.
- It must have a GNU/C++11 spelling.
Differential Revision: https://reviews.llvm.org/D30009
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@300556 91177308-0d34-0410-b5e6-96231b3b80d8
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Some tests fail on the Windows buildbots. I will have to investigate more.
This commit reverts r300539, r300540 and r300542.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@300543 91177308-0d34-0410-b5e6-96231b3b80d8
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The new '#pragma clang attribute' directive can be used to apply attributes to
multiple declarations. An attribute must satisfy the following conditions to
be supported by the pragma:
- It must have a subject list that's defined in the TableGen file.
- It must be documented.
- It must not be late parsed.
- It must have a GNU/C++11 spelling.
Differential Revision: https://reviews.llvm.org/D30009
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@300539 91177308-0d34-0410-b5e6-96231b3b80d8
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This adds the new pragma and the first variant, contract(on/off/fast).
The pragma has the same block scope rules as STDC FP_CONTRACT, i.e. it can be
placed at the beginning of a compound statement or at file scope.
Similarly to STDC FP_CONTRACT there is no need to use attributes. First an
annotate token is inserted with the parsed details of the pragma. Then the
annotate token is parsed in the proper contexts and the Sema is updated with
the corresponding FPOptions using the shared ActOn function with STDC
FP_CONTRACT.
After this the FPOptions from the Sema is propagated into the AST expression
nodes. There is no change here.
I was going to add a 'default' option besides 'on/off/fast' similar to STDC
FP_CONTRACT but then decided against it. I think that we'd have to make option
uppercase then to avoid using 'default' the keyword. Also because of the
scoped activation of pragma I am not sure there is really a need a for this.
Differential Revision: https://reviews.llvm.org/D31276
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@299470 91177308-0d34-0410-b5e6-96231b3b80d8
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- 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
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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
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https://reviews.llvm.org/D30945
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@297756 91177308-0d34-0410-b5e6-96231b3b80d8
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Summary:
The changes contained in this patch are:
1. Defines a new AST node `CoawaitDependentExpr` for representing co_await expressions while the promise type is still dependent.
2. Correctly detect and transform the 'co_await' operand to `p.await_transform(<expr>)` when possible.
3. Change the initial/final suspend points to build during the initial parse, so they have the correct operator co_await lookup results.
4. Fix transformation of the CoroutineBodyStmt so that it doesn't re-build the final/initial suspends.
@rsmith: This change is a little big, but it's not trivial for me to split it up. Please let me know if you would prefer this submitted as multiple patches.
Reviewers: rsmith, GorNishanov
Reviewed By: rsmith
Subscribers: ABataev, rsmith, mehdi_amini, cfe-commits
Differential Revision: https://reviews.llvm.org/D26057
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@297093 91177308-0d34-0410-b5e6-96231b3b80d8
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This commit changes code completion results for Objective-C block properties:
clang now suggests an additional completion result that displays the block
property together with '=' and the block literal placeholder for the appropriate
readwrite block properties.
This commit uses a simple heuristic to determine when it's appropriate to
suggest a setter completion for block properties: the additional block setter
completion is provided iff the member access that's being completed is a
standalone statement.
rdar://28481726
Differential Revision: https://reviews.llvm.org/D25520
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@284472 91177308-0d34-0410-b5e6-96231b3b80d8
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MSVC permits declarations in these places as conforming extension (it is
a constraint violation otherwise).
This fixes PR28782.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@277352 91177308-0d34-0410-b5e6-96231b3b80d8
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Summary: Removed unused headers, replaced some headers with forward class declarations
Patch by: Eugene <claprix@yandex.ru>
Differential Revision: https://reviews.llvm.org/D20100
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@275882 91177308-0d34-0410-b5e6-96231b3b80d8
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No semantic analysis yet.
This is a pain to disambiguate correctly, because the parsing rules for the
declaration form of a condition and of an init-statement are quite different --
for a token sequence that looks like a declaration, we frequently need to
disambiguate all the way to the ')' or ';'.
We could do better here in some cases by stopping disambiguation once we've
decided whether we've got an expression or not (rather than keeping going until
we know whether it's an init-statement declaration or a condition declaration),
by unifying our parsing code for the two types of declaration and moving the
syntactic checks into Sema; if this has a measurable impact on parsing
performance, I'll look into that.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@274169 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@273602 91177308-0d34-0410-b5e6-96231b3b80d8
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-Wfor-loop-analysis warnings for a for-loop with a condition variable. In such
a case, the loop condition variable is modified on each iteration of the loop
by definition.
Original commit message:
Rearrange condition handling so that semantic checks on a condition variable
are performed before the other substatements of the construct are parsed,
rather than deferring them until the end. This allows better error recovery
from semantic errors in the condition, improves diagnostic order, and is a
prerequisite for C++17 constexpr if.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@273600 91177308-0d34-0410-b5e6-96231b3b80d8
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condition variable"
as it caused a regression in -Wfor-loop-analysis.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@273589 91177308-0d34-0410-b5e6-96231b3b80d8
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are performed before the other substatements of the construct are parsed,
rather than deferring them until the end. This allows better error recovery
from semantic errors in the condition, improves diagnostic order, and is a
prerequisite for C++17 constexpr if.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@273548 91177308-0d34-0410-b5e6-96231b3b80d8
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