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path: root/include/clang/Sema/Initialization.h
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2013-05-06Fix representation of compound literals for C++ objects with destructors.Jordan Rose
Previously, this compound literal expression (a GNU extension in C++): (AggregateWithDtor){1, 2} resulted in this AST: `-CXXBindTemporaryExpr [...] 'struct Point' (CXXTemporary [...]) `-CompoundLiteralExpr [...] 'struct AggregateWithDtor' `-CXXBindTemporaryExpr [...] 'struct AggregateWithDtor' (CXXTemporary [...]) `-InitListExpr [...] 'struct AggregateWithDtor' |-IntegerLiteral [...] 'int' 1 `-IntegerLiteral [...] 'int' 2 Note the two CXXBindTemporaryExprs. The InitListExpr is really part of the CompoundLiteralExpr, not an object in its own right. By introducing a new entity initialization kind in Sema specifically for compound literals, we avoid the treatment of the inner InitListExpr as a temporary. `-CXXBindTemporaryExpr [...] 'struct Point' (CXXTemporary [...]) `-CompoundLiteralExpr [...] 'struct AggregateWithDtor' `-InitListExpr [...] 'struct AggregateWithDtor' |-IntegerLiteral [...] 'int' 1 `-IntegerLiteral [...] 'int' 2 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@181212 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-03ArrayRef'ize InitializationSequence constructor and ↵Dmitri Gribenko
InitializationSequence::Diagnose() Patch by Robert Wilhelm. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@181022 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-11Force a load when creating a reference to a temporary copied from a bitfield.Jordan Rose
For this source: const int &ref = someStruct.bitfield; We used to generate this AST: DeclStmt [...] `-VarDecl [...] ref 'const int &' `-MaterializeTemporaryExpr [...] 'const int' lvalue `-ImplicitCastExpr [...] 'const int' lvalue <NoOp> `-MemberExpr [...] 'int' lvalue bitfield .bitfield [...] `-DeclRefExpr [...] 'struct X' lvalue ParmVar [...] 'someStruct' 'struct X' Notice the lvalue inside the MaterializeTemporaryExpr, which is very confusing (and caused an assertion to fire in the analyzer - PR15694). We now generate this: DeclStmt [...] `-VarDecl [...] ref 'const int &' `-MaterializeTemporaryExpr [...] 'const int' lvalue `-ImplicitCastExpr [...] 'int' <LValueToRValue> `-MemberExpr [...] 'int' lvalue bitfield .bitfield [...] `-DeclRefExpr [...] 'struct X' lvalue ParmVar [...] 'someStruct' 'struct X' Which makes a lot more sense. This allows us to remove code in both CodeGen and AST that hacked around this special case. The commit also makes Clang accept this (legal) C++11 code: int &&ref = std::move(someStruct).bitfield PR15694 / <rdar://problem/13600396> git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179250 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-15Silence anonymous type in anonymous union warnings.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177133 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-07Add OpenCL samplers as Clang builtin types and check sampler related ↵Guy Benyei
restrictions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@174601 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-20Implement OpenCL event_t as Clang builtin type, including event_t related ↵Guy Benyei
OpenCL restrictions (OpenCL 1.2 spec 6.9) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172973 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-04Unqualify the parameter type.Rafael Espindola
This fixes a regression from 168895. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@171519 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-04Sort #include lines for all files under include/...Chandler Carruth
This is a simpler sort, entirely automatic with the help of llvm/utils/sort_includes.py -- no manual edits here. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169238 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-01Pull the Attr iteration parts out of Attr.h, so including DeclBase.h doesn't ↵Benjamin Kramer
pull in all the generated Attr code. Required to pull some functions out of line, but this shouldn't have a perf impact. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169092 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-29Merge function types in C.Rafael Espindola
Among other differences, GCC accepts typedef int IA[]; typedef int A10[10]; static A10 *f(void); static IA *f(void); void g(void) { (void)sizeof(*f()); } but clang used to reject it with: invalid application of 'sizeof' to an incomplete type 'IA' (aka 'int []') The intention of c99's 6.2.7 seems to be that we should use the composite type and accept as gcc does. Doing the type merging required some extra fixes: * Use the type from the function type in initializations, even if an parameter is available. * Fix the merging of the noreturn attribute in function types. * Make CodeGen handle the fact that an parameter type can be different from the corresponding type in the function type. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168895 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-13Fix Doxygen misuse: refer to parameter names in paragraphs correctly (\arg isDmitri Gribenko
not what most people want -- it starts a new paragraph). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163793 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-04Drop the ASTContext.h include from DeclFriend.h and DeclTemplate.h.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159723 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-22Documentation cleanup:James Dennett
* Primarily fixed \param commands with names not matching any actual parameters of the documented functions. In many cases this consists just of fixing up the parameter name in the \param to match the code, in some it means deleting obsolete documentation and occasionally it means documenting the parameter that has replaced the older one that was documented, which sometimes means some simple reverse-engineering of the docs from the implementation; * Fixed \param ParamName [out] to the correct format with [out] before the parameter name; * Fixed some \brief summaries. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158980 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-26PR12660: Don't crash when initializing a const reference from a braced init listRichard Smith
which creates a temporary by calling a constructor. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@155608 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-10When we determine that an initialization sequence failed due to anDouglas Gregor
incomplete type, keep track of the actual type that was incomplete. Otherwise, we might fail to produce a diagnostic. Fixes PR12498. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154432 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-09Fix bugs found by -Wconstant-conversion improvements currently under review.David Blaikie
Specifically, using a an integer outside [0, 1] as a boolean constant seems to be an easy mistake to make with things like "x == a || b" where the author intended "x == a || x == b". The bug caused by calling SkipUntil with three token kinds was also identified by a VC diagnostic & reported by Francois Pichet as review feedback for my commit r154163. I've included test cases to verify the error recovery that was broken/poorly implemented due to this bug. The other fix (lib/Sema/SemaExpr.cpp) seems like that code was never actually reached in any of Clang's tests & is related to Objective C features I'm not familiar with, so I've not been able to construct a test case for it. Perhaps someone else can. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154325 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-01Properly handle explicit constructors in list-initialization. Fixes PR12120.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@153849 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-11Unify naming of LangOptions variable/get function across the Clang stack ↵David Blaikie
(Lex to AST). The member variable is always "LangOpts" and the member function is always "getLangOpts". Reviewed by Chris Lattner git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152536 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-24Implement C++11 [over.match.copy]p1b2, which allows the use ofDouglas Gregor
explicit conversion functions to initialize the argument to a copy/move constructor that itself is the subject of direct initialization. Since we don't have that much context in overload resolution, we end up threading more flags :(. Fixes <rdar://problem/10903741> / PR10456. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151409 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-15Support GCC's bug^Wextension allowing class array members to be initalized by aRichard Smith
parenthesized braced-init-list in the base/member initialization list. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150625 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-15Introduce a new initialization entity for lambda captures, andDouglas Gregor
specialize location information and diagnostics for this entity. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150588 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-12Change the way we store initialization kinds so that all direct inits can ↵Sebastian Redl
distinguish between list and parens form. This allows us to correctly diagnose the last test cases from litb. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150343 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-12Employ DirectList initialized entities to properly sort through some ↵Sebastian Redl
initialization edge cases. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150342 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-11Represent C++ direct initializers as ParenListExprs before semantic analysisSebastian Redl
instead of having a special-purpose function. - ActOnCXXDirectInitializer, which was mostly duplication of AddInitializerToDecl (leading e.g. to PR10620, which Eli fixed a few days ago), is dropped completely. - MultiInitializer, which was an ugly hack I added, is dropped again. - We now have the infrastructure in place to distinguish between int x = {1}; int x({1}); int x{1}; -- VarDecl now has getInitStyle(), which indicates which of the above was used. -- CXXConstructExpr now has a flag to indicate that it represents list- initialization, although this is not yet used. - InstantiateInitializer was renamed to SubstInitializer and simplified. - ActOnParenOrParenListExpr has been replaced by ActOnParenListExpr, which always produces a ParenListExpr. Placed that so far failed to convert that back to a ParenExpr containing comma operators have been fixed. I'm pretty sure I could have made a crashing test case before this. The end result is a (I hope) considerably cleaner design of initializers. More importantly, the fact that I can now distinguish between the various initialization kinds means that I can get the tricky generalized initializer test cases Johannes Schaub supplied to work. (This is not yet done.) This commit passed self-host, with the resulting compiler passing the tests. I hope it doesn't break more complicated code. It's a pretty big change, but one that I feel is necessary. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150318 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-11Drive-by fix of incorrect diagnostic, and a test case for said diagnostic. ↵Sebastian Redl
The double error is unfortunate, but I really don't see an alternative whose effort is worth it. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150317 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-04A useful approximation of initializer list constructors.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149792 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-17Sema support for initialization of std::initializer_list from initializer lists.Sebastian Redl
This does not yet support CodeGen. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148349 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-05The value of a const weak variable is not an integer constant.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@147575 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-22Overloading for initializer list construction.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@147156 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-22List-initialization via constructor part 1. Still needs: pretty-printing, ↵Sebastian Redl
overloading, initializer_list. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@147145 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-29Revert r145244. It causes us to create broken ASTs with missing type informationRichard Smith
for some cast expressions. Original commit message: Removed useless ImplicitCast nodes in explicit cstyle and static casts git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@145447 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-28Removed useless ImplicitCast nodes in explicit cstyle and static castsNicola Gigante
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@145244 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-27Reference initialization with initializer lists.Sebastian Redl
This supports single-element initializer lists for references according to DR1288, as well as creating temporaries and binding to them for other initializer lists. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@145186 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-19Fixed HadMultipleCandidates loading.Abramo Bagnara
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@144995 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-17Teach the ARC compiler to not require __bridge casts whenJohn McCall
passing/receiving CF objects at +0 to/from Objective-C methods or audited C functions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@142219 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-05Added a flag to identify resolved overloaded function references.Abramo Bagnara
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@141171 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-24Give InitListChecker a verification-only mode, where it neither emits ↵Sebastian Redl
diagnostics nor builds a semantic (structured) initializer list, just reports on whether it can match the given list to the target type. Use this mode for doing init list checking in the initial step of initialization, which will eventually allow us to do overload resolution based on the outcome. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140457 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-24In Initialization, add step kind SK_ListConstructorCall (list-initializationSebastian Redl
resolves to a constructor call in C++11) and failure kind FK_ListInitializationFailed (early InitListChecker run failed). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140456 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-24Fix typos and non-doxygen-ness in a few comments.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140454 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-19Add list initialization for complex numbers in C. Essentially, this allows ↵Eli Friedman
"_Complex float x = {1.0f, 2.0f};". See changes to docs/LanguageExtensions.html for a longer description. <rdar://problem/9397672>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140090 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-26This patch implements as much of the narrowing conversion error specified byJeffrey Yasskin
[dcl.init.list] as is possible without generalized initializer lists or full constant expression support, and adds a c++0x-compat warning in C++98 mode. The FixIt currently uses a typedef's basename without qualification, which is likely to be incorrect on some code. If it's incorrect on too much code, we should write a function to get the string that refers to a type from a particular context. The warning is currently off by default. I'll fix LLVM and clang before turning it on. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@136181 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-20remove some now-redundant forward declarations.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135578 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-20add raw_ostream and Twine to LLVM.h, eliminating a ton of llvm:: qualifications.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135577 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-20now that we have a centralized place to do so, add some using declarations forChris Lattner
some common llvm types: stringref and smallvector. This cleans up the codebase quite a bit. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135576 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-14Remove InitializationSequence::ReferenceBinding, the last redundant sequence ↵Sebastian Redl
kind. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135175 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-15Suppress an over-zealous MSVC warning.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133109 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-15Automatic Reference Counting.John McCall
Language-design credit goes to a lot of people, but I particularly want to single out Blaine Garst and Patrick Beard for their contributions. Compiler implementation credit goes to Argyrios, Doug, Fariborz, and myself, in no particular order. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133103 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-05Drop most of InitializationSequence::SequenceKind's values. They didn't ↵Sebastian Redl
really contain any information that the step array didn't contain too. This makes debugging dumps a bit less informative, but probably not significantly so. The advantage is that the redundancy is gone, so the code is easier to understand. ReferenceBinding is still there, because it is used in some unclear code. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@132667 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-05Remove more references to FailedSequence.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@132666 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-05Remove all references to InitializationSequence::FailedSequence from outside ↵Sebastian Redl
SemaInit.cpp. Replace them with the boolean conversion or the new Failed() function. This is a first step towards removing InitializationSequence::SequenceKind. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@132664 91177308-0d34-0410-b5e6-96231b3b80d8
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