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path: root/lib/Sema/SemaDecl.cpp
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2009-05-15Call ActOnStartOfFunctionDecl/ActOnFinishFunctionBody whenDouglas Gregor
instantiating the definition of a function from a template. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@71869 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-14Check that the function being overridden is virtual.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@71802 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-14Improvements to the FunctionDecl getters/setters.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@71800 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-14In C++, warn when something previously declared as a "struct" is laterDouglas Gregor
declared as a "class", or vice-versa. This warning is under the control of -Wmismatched-tags, which is off by default. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@71773 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-14Add return type checking for overriding virtual functions. We currently ↵Anders Carlsson
don't check covariance but that's next. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@71759 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-14Implement explicit instantiations of member classes of class templates, e.g.,Douglas Gregor
template<typename T> struct X { struct Inner; }; template struct X<int>::Inner; This change is larger than it looks because it also fixes some a problem with nested-name-specifiers and tags. We weren't requiring the DeclContext associated with the scope specifier of a tag to be complete. Therefore, when looking for something like "struct X<int>::Inner", we weren't instantiating X<int>. This, naturally, uncovered a problem with member pointers, where we were requiring the left-hand side of a member pointer access expression (e.g., x->*) to be a complete type. However, this is wrong: the semantics of this expression does not require a complete type (EDG agrees). Stuart vouched for me. Blame him. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@71756 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-13eli correctly points out that this code is dead, just rip it out forChris Lattner
now until someone does it right git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@71638 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-12Implement parsing for explicit instantiations of class templates, e.g.,Douglas Gregor
template class X<int>; This also cleans up the propagation of template information through declaration parsing, which is used to improve some diagnostics. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@71608 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-12improve the diagnostic for uses of the GCC "global variable in a register" ↵Chris Lattner
extension. This implements rdar://6880449 - improve diagnostic for usage of "global register variable" GCC extension git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@71599 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-12Method who have definitions in structs/classes are semantically inline.Chris Lattner
Per the FIXME, it might be interesting to track whether the inline keyword was also used on the method, but for now we don't do this. Testcase pending. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@71589 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-11Implement the notions of the "current instantiation" and "unknownDouglas Gregor
specialization" within a C++ template, and permit name lookup into the current instantiation. For example, given: template<typename T, typename U> struct X { typedef T type; X* x1; // current instantiation X<T, U> *x2; // current instantiation X<U, T> *x3; // not current instantiation ::X<type, U> *x4; // current instantiation X<typename X<type, U>::type, U>: *x5; // current instantiation }; git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@71471 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-10Implement the semantics of the injected-class-name within a classDouglas Gregor
template. The injected-class-name is either a type or a template, depending on whether a '<' follows it. As a type, the injected-class-name's template argument list contains its template parameters in declaration order. As part of this, add logic for canonicalizing declarations, and be sure to canonicalize declarations used in template names and template arguments. A TagType is dependent if the declaration it references is dependent. I'm not happy about the rather complicated protocol needed to use ASTContext::getTemplateSpecializationType. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@71408 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-06Back out r70506 (exception spec in AST) again. We won't have exception specs ↵Sebastian Redl
until we've had a lot more discussion. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@71125 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-03One can use "class" and "struct" interchangeably to refer to a classDouglas Gregor
in C++. Fixes <rdar://problem/6815995>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70784 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-03Fix invalid error about duplicate declaration of padding bit field inDaniel Dunbar
an interface. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70652 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-01Add Sema checking for __block on vm declarations. Radar 6441502Mike Stump
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70601 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-01Replace a bunch of static_cast + release with takeAs.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70566 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-01Finish a thought in CheckVariableDeclaration's comment. No functionality changeDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70544 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-30Rework the way we handle constructor decls to be less hacky and fix PR3948 ↵Anders Carlsson
completely. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70516 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-30Make a home for exception specs in the AST. Now Sema can hook them up.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70506 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-30Sema checking for incorrect placement of __block. Radar 6441502Mike Stump
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70452 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-29Have the parser communicate the exception specification to the action.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70389 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-29Fix PR4092 by improving error recovery in two ways:Chris Lattner
1. In a struct field redefinition, don't mark the struct erroneous. The field is erroneous, but the struct is otherwise well formed. 2. Don't emit diagnostics about functions that are known to be broken already. Either fix is sufficient to silence the second diagnostic in the example, but the combination is better :) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70371 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-28Improve compatibility with GCC regarding inline semantics in GNU89Douglas Gregor
mode and in the presence of __gnu_inline__ attributes. This should fix both PR3989 and PR4069. As part of this, we now keep track of all of the attributes attached to each declaration even after we've performed declaration merging. This fixes PR3264. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70292 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-28Get rid of some useless uses of NoExtensions. The philosophy here is Eli Friedman
that if we're going to print an extension warning anyway, there's no point to changing behavior based on NoExtensions: it will only make error recovery worse. Note that this doesn't cause any behavior change because NoExtensions isn't used by the current front-end. I'm still considering what to do about the remaining use of NoExtensions in IdentifierTable.cpp. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70273 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-27Track down return statements in the handlers of a function-try-block of ↵Sebastian Redl
constructors. Meh ... git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70256 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-27Change our silencing of C typedef redefinition handling to what we hadChris Lattner
before r69391: typedef redefinition is an error by default, but if *either* the old or new definition are from a system header, we silence it. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70177 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-26Implement function-try-blocks. However, there's a very subtle bug that I ↵Sebastian Redl
can't track down. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70155 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-25improve a diagnostic to make more sense.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70062 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-25with the fixes for better invalid decl/type propagation, this codeChris Lattner
is no longer needed: a function type and a function declarator are always known to line up. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70060 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-25Change SemaType's "GetTypeForDeclarator" and "ConvertDeclSpecToType" to Chris Lattner
always return a non-null QualType + error bit. This fixes a bunch of cases that didn't check for null result (and could thus crash) and eliminates some crappy code scattered throughout sema. This also improves the diagnostics in the recursive struct case to eliminate a bogus second error. It also cleans up the case added to function.c by forming a proper function type even though the declarator is erroneous, allowing the parameter to be added to the function. Before: t.c:2:1: error: unknown type name 'unknown_type' unknown_type f(void*P) ^ t.c:4:3: error: use of undeclared identifier 'P' P+1; ^ After: t.c:2:1: error: unknown type name 'unknown_type' unknown_type f(void*P) ^ git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70023 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-25change a couple more c++ sema methods to be based on isinvalid bits.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70022 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-25various "is invalid" cleanups for C++ ctors/dtors.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70021 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-25This is a pretty big cleanup for how invalid decl/type are handle.Chris Lattner
This gets rid of a bunch of random InvalidDecl bools in sema, changing us to use the following approach: 1. When analyzing a declspec or declarator, if an error is found, we set a bit in Declarator saying that it is invalid. 2. Once the Decl is created by sema, we immediately set the isInvalid bit on it from what is in the declarator. From this point on, sema consistently looks at and sets the bit on the decl. This gives a very clear separation of concerns and simplifies a bunch of code. In addition to this, this patch makes these changes: 1. it renames DeclSpec::getInvalidType() -> isInvalidType(). 2. various "merge" functions no longer return bools: they just set the invalid bit on the dest decl if invalid. 3. The ActOnTypedefDeclarator/ActOnFunctionDeclarator/ActOnVariableDeclarator methods now set invalid on the decl returned instead of returning an invalid bit byref. 4. In SemaType, refering to a typedef that was invalid now propagates the bit into the resultant type. Stuff declared with the invalid typedef will now be marked invalid. 5. Various methods like CheckVariableDeclaration now return void and set the invalid bit on the decl they check. There are a few minor changes to tests with this, but the only major bad result is test/SemaCXX/constructor-recovery.cpp. I'll take a look at this next. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70020 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-25fix PR4049, a crash on invalid, by making sema install the right number of Chris Lattner
parameters in a functiondecl, even if the decl is invalid and has a confusing Declarator. On the testcase, we now emit one beautiful diagnostic: t.c:2:1: error: unknown type name 'unknown_type' unknown_type f(void*) ^ GCC 4.0 produces: t.c:2: error: syntax error before ‘f’ t.c: In function ‘f’: t.c:2: error: parameter name omitted and GCC 4.2: t.c:2: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘f’ git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70016 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-25rename getNumParmVarDeclsFromType back to getNumParams(),Chris Lattner
remove a special case that was apparently for typeof() and generalize the code in SemaDecl that handles typedefs to handle any sugar type (including typedef, typeof, etc). Improve comment to make it more clear what is going on. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70015 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-25in:Chris Lattner
typedef void foo(void); We get a typedef for a functiontypeproto with no arguments, not one with one argument and type void. This means the code being removed in SemaDecl is dead. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70013 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-25set NewFD->setInvalidDecl() in one place, sharing code and ensuring thatChris Lattner
functions with prototypes get the bit. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70011 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-24fix the sizeof error recovery issue (sizeof-interface.m:attributeRuns)Chris Lattner
by correctly propagating the fact that the type was invalid up to the attributeRuns decl, then returning an ExprError when attributeRuns is formed (like we do for normal declrefexprs). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69998 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-24Eliminate Sema::ObjCAliasDecls. This is based on Steve's fix, but alsoDouglas Gregor
updates name lookup so that we see through @compatibility_alias declarations to their underlying interfaces. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69950 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-23PCH support for all of the predefined Objective-C types, such as id,Douglas Gregor
SEL, Class, Protocol, CFConstantString, and __objcFastEnumerationState. With this, we can now run the Objective-C methods and properties PCH tests. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69932 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-23Fix handling of C99 "extern inline" semantics when dealing withDouglas Gregor
multiple declarations of the function. Should fix PR3989 and <rdar://problem/6818429>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69905 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-23The ivars in an ObjCImplementationDecl are now stored in theDouglas Gregor
DeclContext rather than in a separate list. This makes PCH (de-)serialization trivial, so that ivars can be loaded lazily. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69857 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-22Eliminate Sema::KnownFunctionIDs, so that Sema doesn't end up pullingDouglas Gregor
in a bunch of declarations from the PCH file. We're down to loading very few declarations in Carbon-prefixed "Hello, World!": *** PCH Statistics: 6/20693 types read (0.028995%) 7/59230 declarations read (0.011818%) 50/44914 identifiers read (0.111324%) 0/32954 statements read (0.000000%) 5/6187 macros read (0.080815%) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69825 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-21Explictly track tentative definitions within Sema, then hand thoseDouglas Gregor
tentative definitions off to the ASTConsumer at the end of the translation unit. Eliminate CodeGen's internal tracking of tentative definitions, and instead hook into ASTConsumer::CompleteTentativeDefinition. Also, tweak the definition-deferal logic for C++, where there are no tentative definitions. Fixes <rdar://problem/6808352>, and will make it much easier for precompiled headers to cope with tentative definitions in the future. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69681 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-20clean up anonymous bitfield diagnostics, PR4017Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69608 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-19Print an error for uses of __thread on targets which don't support it.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69553 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-19Add more thorough/correct checking for invalid __thread specifiers.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69542 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-19add a new Sema::CurFunctionNeedsScopeChecking bool that is used to avoid Chris Lattner
calling into the jump checker when a function or method is known to contain no VLAs or @try blocks. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69509 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-19move jump scope checking and related code out into its own file, SemaDecl.cpp isChris Lattner
already too large. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69505 91177308-0d34-0410-b5e6-96231b3b80d8
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