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2009-07-31Add CK_DerivedToBase and use it PerformObjectMemberConversion.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@77652 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-31Add a CastKind enum to CastExpr. Right now it's not used for much but it ↵Anders Carlsson
will be :) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@77650 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-30PR3679 - handle #pragma weakRyan Flynn
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@77573 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-15Implement the ObjC pseudo built-in types as clang "BuiltinType's". I say ↵Steve Naroff
pseudo built-in types, since Sema still injects a typedef for recognition (i.e. they aren't truly built-ins from a parser perspective). This removes the static data/methods on ObjCObjectPointerType while preserving the nice API (no need to fiddle with ASTContext:-). This patch also adds Type::isObjCBuiltinType(). This should be the last fairly large patch related to recrafting the ObjC type system. The follow-on patches should be fairly small. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@75808 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-10This patch includes a conceptually simple, but very intrusive/pervasive change. Steve Naroff
The idea is to segregate Objective-C "object" pointers from general C pointers (utilizing the recently added ObjCObjectPointerType). The fun starts in Sema::GetTypeForDeclarator(), where "SomeInterface *" is now represented by a single AST node (rather than a PointerType whose Pointee is an ObjCInterfaceType). Since a significant amount of code assumed ObjC object pointers where based on C pointers/structs, this patch is very tedious. It should also explain why it is hard to accomplish this in smaller, self-contained patches. This patch does most of the "heavy lifting" related to moving from PointerType->ObjCObjectPointerType. It doesn't include all potential "cleanups". The good news is additional cleanups can be done later (some are noted in the code). This patch is so large that I didn't want to include any changes that are purely aesthetic. By making the ObjC types truly built-in, they are much easier to work with (and require fewer "hacks"). For example, there is no need for ASTContext::isObjCIdStructType() or ASTContext::isObjCClassStructType()! We believe this change (and the follow-up cleanups) will pay dividends over time. Given the amount of code change, I do expect some fallout from this change (though it does pass all of the clang tests). If you notice any problems, please let us know asap! Thanks. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@75314 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-06Keep track of the Expr used to describe the size of an array type,Douglas Gregor
from Enea Zaffanella! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@74831 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-02Add support for retrieving the Doxygen comment associated with a givenDouglas Gregor
declaration in the AST. The new ASTContext::getCommentForDecl function searches for a comment that is attached to the given declaration, and returns that comment, which may be composed of several comment blocks. Comments are always available in an AST. However, to avoid harming performance, we don't actually parse the comments. Rather, we keep the source ranges of all of the comments within a large, sorted vector, then lazily extract comments via a binary search in that vector only when needed (which never occurs in a "normal" compile). Comments are written to a precompiled header/AST file as a blob of source ranges. That blob is only lazily loaded when one requests a comment for a declaration (this never occurs in a "normal" compile). The indexer testbed now supports comment extraction. When the -point-at location points to a declaration with a Doxygen-style comment, the indexer testbed prints the associated comment block(s). See test/Index/comments.c for an example. Some notes: - We don't actually attempt to parse the comment blocks themselves, beyond identifying them as Doxygen comment blocks to associate them with a declaration. - We won't find comment blocks that aren't adjacent to the declaration, because we start our search based on the location of the declaration. - We don't go through the necessary hops to find, for example, whether some redeclaration of a declaration has comments when our current declaration does not. Similarly, we don't attempt to associate a \param Foo marker in a function body comment with the parameter named Foo (although that is certainly possible). - Verification of my "no performance impact" claims is still "to be done". git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@74704 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-22Implement implicit instantiation of the member functions of a class templateDouglas Gregor
specialization. At present, all implicit instantiations occur at the end of the translation unit. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@73915 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-22Rework the way we track which declarations are "used" duringDouglas Gregor
compilation, and (hopefully) introduce RAII objects for changing the "potentially evaluated" state at all of the necessary places within Sema and Parser. Other changes: - Set the unevaluated/potentially-evaluated context appropriately during template instantiation. - We now recognize three different states while parsing or instantiating expressions: unevaluated, potentially evaluated, and potentially potentially evaluated (for C++'s typeid). - When we're in a potentially potentially-evaluated context, queue up MarkDeclarationReferenced calls in a stack. For C++ typeid expressions that are potentially evaluated, we will play back these MarkDeclarationReferenced calls when we exit the corresponding potentially potentially-evaluated context. - Non-type template arguments are now parsed as constant expressions, so they are not potentially-evaluated. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@73899 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-19Keep track of when declarations are "used" according to C andDouglas Gregor
C++. This logic is required to trigger implicit instantiation of function templates and member functions of class templates, which will be implemented separately. This commit includes support for -Wunused-parameter, printing warnings for named parameters that are not used within a function/Objective-C method/block. Fixes <rdar://problem/6505209>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@73797 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-17First step toward fixing <rdar://problem/6613046> refactor clang objc type ↵Steve Naroff
representation. Add a type (ObjCObjectPointerType) and remove a type (ObjCQualifiedIdType). This large/tedious patch is just a first step. Next step is to remove ObjCQualifiedInterfaceType. After that, I will remove the magic TypedefType for 'id' (installed by Sema). This work will enable various simplifications throughout clang (when dealing with ObjC types). No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@73649 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-16Add a comment to Sema::ActOnTranslationUnitScope().Steve Naroff
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@73450 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-14Introduce a SFINAE "trap" that keeps track of the number of errorsDouglas Gregor
that were suppressed due to SFINAE. By checking whether any errors occur at the end of template argument deduction, we avoid the possibility of suppressing an error (due to SFINAE) and then recovering so well that template argument deduction never detects that there was a problem. Thanks to Eli for the push in this direction. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@73336 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-14Update LLVM.Douglas Gregor
Implement support for C++ Substitution Failure Is Not An Error (SFINAE), which says that errors that occur during template argument deduction do *not* produce diagnostics and do not necessarily make a program ill-formed. Instead, template argument deduction silently fails. This is currently implemented for template argument deduction during matching of class template partial specializations, although the mechanism will also apply to template argument deduction for function templates. The scheme is simple: - If we are in a template argument deduction context, any diagnostic that is considered a SFINAE error (or warning) will be suppressed. The error will be propagated up the call stack via the normal means. - By default, all warnings and errors are SFINAE errors. Add the NoSFINAE class to a diagnostic in the .td file to make it a hard error (e.g., for access-control violations). Note that, to make this fully work, every place in Sema that emits an error *and then immediately recovers* will need to check Sema::isSFINAEContext() to determine whether it must immediately return an error rather than recovering. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@73332 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-03Use "()" instead of "(void)" when pretty-printing a parameter-less function ↵Argyrios Kyrtzidis
type for C++. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@72747 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-29Create a new PrintingPolicy class, which we pass down through the ASTDouglas Gregor
printing logic to help customize the output. For now, we use this rather than a special flag to suppress the "struct" when printing "struct X" and to print the Boolean type as "bool" in C++ but "_Bool" in C. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@72590 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-14Introduce a stack of instantiation scopes that are used to store the mapping ↵Douglas Gregor
from variable declarations that occur within templates to their instantiated counterparts git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@71799 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-30only support int128_t on 64-bit and larger targets. 32-bit targets don'tChris Lattner
have support for __divti3 and friends. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70480 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-30initial support for __[u]int128_t, which should be basicallyChris Lattner
compatible with VC++ and GCC. The codegen/mangling angle hasn't been fully ironed out yet. Note that we accept int128_t even in 32-bit mode, unlike gcc. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70464 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-24PCH support for the global method pool (= instance and factory methodDouglas Gregor
pools, combined). The methods in the global method pool are lazily loaded from an on-disk hash table when Sema looks into its version of the hash tables. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69989 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
2009-04-22Eliminate 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
2009-04-15Add warning when a tentative array definition is assumed to have one element.Daniel Dunbar
- Also, fixed one to actually be one (instead of zero). :) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69226 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-14When building a PCH file, don't perform end-of-translation-unitDouglas Gregor
wrap-up (e.g., turning tentative definitions into definitions). Also, very that, when we actually use the PCH file, we get the ride code generation for tentative definitions and definitions that show up in the PCH file. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69043 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-01Give Type::getDesugaredType a "for-display" mode that can apply moreDouglas Gregor
heuristics to determine when it's useful to desugar a type for display to the user. Introduce two C++-specific heuristics: - For a qualified type (like "foo::bar"), only produce a new desugred type if desugaring the qualified type ("bar", in this case) produces something interesting. For example, if "foo::bar" refers to a class named "bar", don't desugar. However, if "foo::bar" refers to a typedef of something else, desugar to that something else. This gives some useful desugaring such as "foo::bar (aka 'int')". - Don't desugar class template specialization types like "basic_string<char>" down to their underlying "class basic_string<char, char_traits<char>, allocator<char>>, etc."; it's better just to leave such types alone. Update diagnostics.html with some discussion and examples of type preservation in C++, showing qualified names and class template specialization types. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@68207 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-28Introduce a new OpaquePtr<N> struct type, which is a simple POD wrapper for aChris Lattner
pointer. Its purpose in life is to be a glorified void*, but which does not implicitly convert to void* or other OpaquePtr's with a different UID. Introduce Action::DeclPtrTy which is a typedef for OpaquePtr<0>. Change the entire parser/sema interface to use DeclPtrTy instead of DeclTy*. This makes the C++ compiler enforce that these aren't convertible to other opaque types. We should also convert ExprTy, StmtTy, TypeTy, AttrTy, BaseTy, etc, but I don't plan to do that in the short term. The one outstanding known problem with this patch is that we lose the bitmangling optimization where ActionResult<DeclPtrTy> doesn't know how to bitmangle the success bit into the low bit of DeclPtrTy. I will rectify this with a subsequent patch. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@67952 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-20Eliminate post-diagnostic hooks. Instead, implement a Sema-specificDouglas Gregor
variant of DiagnosticBuilder that emits the template instantiation backtrace when needed. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@67413 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-13Remove ActiveScope (revert ↵Steve Naroff
http://llvm.org/viewvc/llvm-project?view=rev&revision=65694 and http://llvm.org/viewvc/llvm-project?view=rev&revision=66741). Will replace with something better today... git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@66893 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-10Add type checking for tentative definitions at the end of theDouglas Gregor
translation unit. Thread the various declarations of variables via VarDecl::getPreviousDeclaration. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@66601 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-28Fix <rdar://problem/6451399> problems with labels and blocks.Steve Naroff
- Move the 'LabelMap' from Sema to Scope. To avoid layering problems, the second element is now a 'StmtTy *', which makes the LabelMap a bit more verbose to deal with. - Add 'ActiveScope' to Sema. Managed by ActOnStartOfFunctionDef(), ObjCActOnStartOfMethodDef(), ActOnBlockStmtExpr(). - Changed ActOnLabelStmt(), ActOnGotoStmt(), ActOnAddrLabel(), and ActOnFinishFunctionBody() to use the new ActiveScope. - Added FIXME to workaround in ActOnFinishFunctionBody() (for dealing with C++ nested functions). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@65694 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-19replace a dirty hack with a clean solution. Too bad we can't Chris Lattner
use Blocks for our callbacks ;-) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@65083 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-19Fix a long standard problem with clang retaining "too much" sugar Chris Lattner
information about types. We often print diagnostics where we say "foo_t" is bad, but the user doesn't know how foo_t is declared (because it is a typedef). Fix this by expanding sugar when present in a diagnostic (and not one of a few special cases, like vectors). Before: t.m:5:2: error: invalid operands to binary expression ('typeof(P)' and 'typeof(F)') MAX(P, F); ^~~~~~~~~ t.m:1:78: note: instantiated from: #define MAX(A,B) ({ __typeof__(A) __a = (A); __typeof__(B) __b = (B); __a < __b ? __b : __a; }) ^ After: t.m:5:2: error: invalid operands to binary expression ('typeof(P)' (aka 'struct mystruct') and 'typeof(F)' (aka 'float')) MAX(P, F); ^~~~~~~~~ t.m:1:78: note: instantiated from: #define MAX(A,B) ({ __typeof__(A) __a = (A); __typeof__(B) __b = (B); __a < __b ? __b : __a; }) ^ git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@65081 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-14Add hook to add attributes to function declarations that we knowDouglas Gregor
about, whether they are builtins or not. Use this to add the appropriate "format" attribute to NSLog, NSLogv, asprintf, and vasprintf, and to translate builtin attributes (from Builtins.def) into actual attributes on the function declaration. Use the "printf" format attribute on function declarations to determine whether we should do format string checking, rather than looking at an ad hoc list of builtins and "known" function names. Be a bit more careful about when we consider a function a "builtin" in C++. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@64561 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-14Make it possible for builtins to expression FILE* arguments, so thatDouglas Gregor
we can define builtins such as fprintf, vfprintf, and __builtin___fprintf_chk. Give a nice error message when we need to implicitly declare a function like fprintf. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@64526 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-14Extend builtin "attribute" syntax to include a notation forDouglas Gregor
printf-like functions, both builtin functions and those in the C library. The function-call checker now queries this attribute do determine if we have a printf-like function, rather than scanning through the list of "known functions IDs". However, there are 5 functions they are not yet "builtins", so the function-call checker handles them specifically still: - fprintf and vfprintf: the builtins mechanism cannot (yet) express FILE* arguments, so these can't be encoded. - NSLog: the builtins mechanism cannot (yet) express NSString* arguments, so this (and NSLogv) can't be encoded. - asprintf and vasprintf: these aren't part of the C99 standard library, so we really shouldn't be defining them as builtins in the general case (and we don't seem to have the machinery to make them builtins only on certain targets and depending on whether extensions are enabled). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@64512 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-07Overhaul of Stmt allocation:Ted Kremenek
- Made allocation of Stmt objects using vanilla new/delete a *compiler error* by making this new/delete "protected" within class Stmt. - Now the only way to allocate Stmt objects is by using the new operator that takes ASTContext& as an argument. This ensures that all Stmt nodes are allocated from the same (pool) allocator. - Naturally, these two changes required that *all* creation sites for AST nodes use new (ASTContext&). This is a large patch, but the majority of the changes are just this mechanical adjustment. - The above changes also mean that AST nodes can no longer be deallocated using 'delete'. Instead, one most do StmtObject->Destroy(ASTContext&) or do ASTContextObject.Deallocate(StmtObject) (the latter not running the 'Destroy' method). Along the way I also... - Made CompoundStmt allocate its array of Stmt* using the allocator in ASTContext (previously it used std::vector). There are a whole bunch of other Stmt classes that need to be similarly changed to ensure that all memory allocated for ASTs comes from the allocator in ASTContext. - Added a new smart pointer ExprOwningPtr to Sema.h. This replaces the uses of llvm::OwningPtr within Sema, as llvm::OwningPtr used 'delete' to free memory instead of a Stmt's 'Destroy' method. Big thanks to Doug Gregor for helping with the acrobatics of making 'new/delete' private and the new smart pointer ExprOwningPtr! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@63997 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-04Implement semantic analysis for the GNU flexible array initializationDouglas Gregor
extension. The interaction with designated initializers is a bit... interesting... but we follow GNU's lead and don't permit too much crazy code in this area. Also, make the "excess initializers" error message a bit more informative. Addresses PR2561: http://llvm.org/bugs/show_bug.cgi?id=2561 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@63785 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-04Some name-lookup-related fixes, from Piotr Rak!Douglas Gregor
- Changes Lookup*Name functions to return NamedDecls, instead of Decls. Unfortunately my recent statement that it will simplify lot of code, was not quite right, but it simplifies some... - Makes MergeLookupResult SmallPtrSet instead of vector, following Douglas suggestions. - Adds %qN format for printing qualified names to Diagnostic. - Avoids searching for using-directives in Scopes, which are not DeclScope, during unqualified name lookup. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@63739 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-29move library-specific diagnostic headers into library private dirs. ReduceChris Lattner
redundant #includes. Patch by Anders Johnsen! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@63271 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-27Split the single monolithic DiagnosticKinds.def file into oneChris Lattner
.def file for each library. This means that adding a diagnostic to sema doesn't require all the other libraries to be rebuilt. Patch by Anders Johnsen! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@63111 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-22inline Sema::getLangOptions, rdar://6515190. This speeds upChris Lattner
fsyntax-only with PTH by 3%. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62774 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-22Initial implementation of semantic analysis and ASTs for C99Douglas Gregor
designated initializers. This implementation should cover all of the constraints in C99 6.7.8, including long, complex designations and computing the size of incomplete array types initialized with a designated initializer. Please see the new test-case and holler if you find cases where this doesn't work. There are still some wrinkles with GNU's anonymous structs and anonymous unions (it isn't clear how these should work; we'll just follow GCC's lead) and with designated initializers for the members of a union. I'll tackle those very soon. CodeGen is still nonexistent, and there's some leftover code in the parser's representation of designators that I'll also need to clean up. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62737 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-20Remove ScopedDecl, collapsing all of its functionality into Decl, soDouglas Gregor
that every declaration lives inside a DeclContext. Moved several things that don't have names but were ScopedDecls (and, therefore, NamedDecls) to inherit from Decl rather than NamedDecl, including ObjCImplementationDecl and LinkageSpecDecl. Now, we don't store empty DeclarationNames for these things, nor do we try to insert them into DeclContext's lookup structure. The serialization tests are temporarily disabled. We'll re-enable them once we've sorted out the remaining ownership/serialiazation issues between DeclContexts and TranslationUnion, DeclGroups, etc. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62562 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-18Vector codegen improvementsNate Begeman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62458 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-09Addressed the issue in <rdar://problem/6479085>, where we failed toDouglas Gregor
rewrite @class declarations that showed up within linkage specifications because those @class declarations never made it any place where the rewriter could find them. Moved all of the ObjC*Decl nodes over to ScopedDecls, so that they can live in the appropriate top-level or transparent DeclContext near the top level, e.g., TranslationUnitDecl or LinkageSpecDecl. Objective-C declarations now show up in a traversal of the declarations in a DeclContext (they didn't before!). This way, the rewriter finds all Objective-C declarations within linkage specifications. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61966 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-08This is a large/messy diff that unifies the ObjC AST's with DeclContext.Steve Naroff
- ObjCContainerDecl's (ObjCInterfaceDecl/ObjCCategoryDecl/ObjCProtocolDecl), ObjCCategoryImpl, & ObjCImplementation are all DeclContexts. - ObjCMethodDecl is now a ScopedDecl (so it can play nicely with DeclContext). - ObjCContainerDecl now does iteration/lookup using DeclContext infrastructure (no more linear search:-) - Removed ASTContext argument to DeclContext::lookup(). It wasn't being used and complicated it's use from an ObjC AST perspective. - Added Sema::ProcessPropertyDecl() and removed Sema::diagnosePropertySetterGetterMismatch(). - Simplified Sema::ActOnAtEnd() considerably. Still more work to do. - Fixed an incorrect casting assumption in Sema::getCurFunctionOrMethodDecl(), now that ObjCMethodDecl is a ScopedDecl. - Removed addPropertyMethods from ObjCInterfaceDecl/ObjCCategoryDecl/ObjCProtocolDecl. This passes all the tests on my machine. Since many of the changes are central to the way ObjC finds it's methods, I expect some fallout (and there are still a handful of FIXME's). Nevertheless, this should be a step in the right direction. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61929 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-22Expr and Stmt must be destroyed with Destroy, not delete. Fixes PR/3245.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61335 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-11Unifies the name-lookup mechanisms used in various parts of the ASTDouglas Gregor
and separates lexical name lookup from qualified name lookup. In particular: * Make DeclContext the central data structure for storing and looking up declarations within existing declarations, e.g., members of structs/unions/classes, enumerators in C++0x enums, members of C++ namespaces, and (later) members of Objective-C interfaces/implementations. DeclContext uses a lazily-constructed data structure optimized for fast lookup (array for small contexts, hash table for larger contexts). * Implement C++ qualified name lookup in terms of lookup into DeclContext. * Implement C++ unqualified name lookup in terms of qualified+unqualified name lookup (since unqualified lookup is not purely lexical in C++!) * Limit the use of the chains of declarations stored in IdentifierInfo to those names declared lexically. * Eliminate CXXFieldDecl, collapsing its behavior into FieldDecl. (FieldDecl is now a ScopedDecl). * Make RecordDecl into a DeclContext and eliminates its Members/NumMembers fields (since one can just iterate through the DeclContext to get the fields). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60878 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-04change getCurFunctionDecl to skip through Block contexts to findChris Lattner
the containing block. Introduce a new getCurFunctionOrMethodDecl method to check to see if we're in a function or objc method. Minor cleanups to other related places. This fixes rdar://6405429. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60564 91177308-0d34-0410-b5e6-96231b3b80d8