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2009-01-05Introduce support for "transparent" DeclContexts, which areDouglas Gregor
DeclContexts whose members are visible from enclosing DeclContexts up to (and including) the innermost enclosing non-transparent DeclContexts. Transparent DeclContexts unify the mechanism to be used for various language features, including C enumerations, anonymous unions, C++0x inline namespaces, and C++ linkage specifications. Please refer to the documentation in the Clang internals manual for more information. Only enumerations and linkage specifications currently use transparent DeclContexts. Still to do: use transparent DeclContexts to implement anonymous unions and GCC's anonymous structs extension, and, later, the C++0x features. We also need to tighten up the DeclContext/ScopedDecl link to ensure that every ScopedDecl is in a single DeclContext, which will ensure that we can then enforce ownership and reduce the memory footprint of DeclContext. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61735 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-05remove optimization to avoid looking ahead for cases like ::foo. ThisChris Lattner
isn't worth the complexity and the code already does a ton of lookahead. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61671 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-05sink a call to TryAnnotateCXXScopeToken down into theChris Lattner
applicable cases in ParseDeclarationSpecifiers. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61657 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-04my previous patch caused sema to drop the global qualifier, makeChris Lattner
sure to pass it down. This makes the code a bit gross, I will clean it up in subsequent commits. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61650 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-04eliminate lookahead when parsing ::new / ::delete.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61638 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-30Parser support for C++ using directives, from Piotr RakDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61486 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-28Convert a two more statement actions to smart pointers.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61456 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-28Diagnose declarations that don't declare anything, and fix PR3020.Sebastian Redl
Examples: int; typedef int; git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61454 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-24Add explicit "fuzzy" parse support for Microsoft declspec.Steve Naroff
Remove previous __declspec macro that would effectively erase the construct prior to parsing. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61422 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-24Keep track of template arguments when we parse them. Right now, we don't ↵Douglas Gregor
actually do anything with the template arguments, but they'll be used to create template declarations git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61413 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-24Correct the order in which we cope with end-of-class-definitionDouglas Gregor
semantics and improve our handling of default arguments. Specifically, we follow this order: - As soon as the see the '}' in the class definition, the class is complete and we add any implicit declarations (default constructor, copy constructor, etc.) to the class. - If there are any default function arguments, parse them - If there were any inline member function definitions, parse them As part of this change, we now keep track of the the fact that we've seen unparsed default function arguments within the AST. See the new ParmVarDecl::hasUnparsedDefaultArg member. This allows us to properly cope with calls inside default function arguments to other functions where we're making use of the default arguments. Made some C++ error messages regarding failed initializations more specific. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61406 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-23Don't explicitly represent OverloadedFunctionDecls withinDouglas Gregor
DeclContext. Instead, just keep the list of currently-active declarations and only build the OverloadedFunctionDecl when we absolutely need it. This is a half-step toward eliminating the need to explicitly build OverloadedFunctionDecls that store sets of overloaded functions. This was suggested by Argiris a while back, and it's a good thing for several reasons: first, it eliminates the messy logic that currently tries to keep the OverloadedFunctionDecl in sync with the declarations that are being added. Second, it will (eventually) eliminate the need to allocate memory for overload sets, which could help performance. Finally, it helps set us up for when name lookup can return multiple (possibly ambiguous) results, as can happen with lookup of class members in C++. Next steps: make the IdentifierResolver store overloads as separate entries in its list rather than replacing them with an OverloadedFunctionDecl now, then see how far we can go toward eliminating OverloadedFunctionDecl entirely. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61357 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-21Parser support for C++ try-catch.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61312 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-21Convert a few Stmt actions to smart pointers.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61309 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-21Document how move semantics and the emulation work. Do this in-file because ↵Sebastian Redl
it's such a specific thing. Restructure code for less duplication. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61308 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-18Ultrasimplistic sketch for the parsing of C++ template-ids. This won'tDouglas Gregor
become useful or correct until we (1) parse template arguments correctly, (2) have some way to turn template-ids into types, declarators, etc., and (3) have a real representation of templates. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61208 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-18rename argumentChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61199 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-18disallow attributes in a few callers of ParseTypeQualifierListOpt,Chris Lattner
these completely ignore parsed attributes anyway, so don't try to read them. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61198 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-17Semantics of @protocol attributes.Fariborz Jahanian
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61114 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-16Make linkage-specifications hold on to all of their declarationsDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61110 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-16Delay parsing of default arguments of member functions until the classDouglas Gregor
is completely defined (C++ [class.mem]p2). Reverse the order in which we process the definitions of member functions specified inline. This way, we'll get diagnostics in the order in which the member functions were declared in the class. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61103 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-16Remove tabs.Nate Begeman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61097 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-16Make name lookup when we're inside a declarator's scope, such as ↵Douglas Gregor
ClassName::func, work with the new unqualified name lookup code. Test it with default arguments in out-of-line member definitions git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61060 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-13Some utilities for using the smart pointers in Actions, especially Sema. ↵Sebastian Redl
Convert a few functions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60983 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-13Convert remaining expression parsers to smart pointers. Now on to the Action ↵Sebastian Redl
connection. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60982 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-12use smarter error recovery for do/while.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60933 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-12apply the new error recovery smarts we have for if's to while's and switch's.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60932 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-11Convert a big bunch of expression parsers to use smart pointers.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60906 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-11Convert some more expression parsers to use smart pointers.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60904 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-11Convert selected expression parsers to use smart pointers.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60900 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-11Convert the remaining statement parsers to smart pointers.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60895 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-11Convert some more statement parsers to smart pointers.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60892 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-11Convert a number of statement parsers to smart pointers.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60888 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
2008-12-10Added a warning when referencing an if's condition variable in theDouglas Gregor
"else" clause, e.g., if (int X = foo()) { } else { if (X) { // warning: X is always zero in this context } } Fixes rdar://6425550 and lets me think about something other than DeclContext. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60858 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-10Use a scoped object to manage entry/exit from a parser scope rather than ↵Douglas Gregor
explicitly calling EnterScope/ExitScope git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60830 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-10Modify the move emulation according to the excellent design of Howard ↵Sebastian Redl
Hinnant. Makes for much nicer syntax when smart pointers are used consistently. Also, start converting internal argument passing of Parser to smart pointers. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60809 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-09Kick out the proof-of-concept ASTOwner and replace it with ASTOwningResultSebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60791 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-09Lay the groundwork for converting the entire parser-sema chain to smart ↵Sebastian Redl
pointers. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60782 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-07Fix outdated comment. Checks so much more than just typedefs in C++.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60676 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-06Add support for calls to dependent names within templates, e.g.,Douglas Gregor
template<typename T> void f(T x) { g(x); // g is a dependent name, so don't even bother to look it up g(); // error: g is not a dependent name } Note that when we see "g(", we build a CXXDependentNameExpr. However, if none of the call arguments are type-dependent, we will force the resolution of the name "g" and replace the CXXDependentNameExpr with its result. GCC actually produces a nice error message when you make this mistake, and even offers to compile your code with -fpermissive. I'll do the former next, but I don't plan to do the latter. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60618 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-05Representation of template type parameters and non-type templateDouglas Gregor
parameters, with some semantic analysis: - Template parameters are introduced into template parameter scope - Complain about template parameter shadowing (except in Microsoft mode) Note that we leak template parameter declarations like crazy, a problem we'll remedy once we actually create proper declarations for templates. Next up: dependent types and value-dependent/type-dependent expressions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60597 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-02Handle new by passing the Declaration to the Action, not a processed type.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60413 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-02A little more scaffolding for parsing templates:Douglas Gregor
- Template parameter scope to hold the template parameters - Template parameter context for parsing declarators - Actions for template type parameters and non-type template parameters git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60387 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-01Basic support for parsing templates, from Andrew SuttonDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60384 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-29Implement the GNU __null extensionDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60235 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-26Add some comments.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60119 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-26Implement some suggestions by Daniel:Argyrios Kyrtzidis
-Change Parser::ParseCXXScopeSpecifier to MaybeParseCXXScopeSpecifier -Remove Parser::isTokenCXXScopeSpecifier and fold it into MaybeParseCXXScopeSpecifier -Rename Parser::TryAnnotateScopeToken to TryAnnotateCXXScopeToken and only allow it to be called when in C++ git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60117 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-26Set default property attributes on each property.Fariborz Jahanian
Implemented anonymous category (also know as continuation class) used to override main class's property attribute. This is work in propgress. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60114 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-25Use RAII objects to ensure proper destruction of expression and statement ↵Sebastian Redl
AST nodes in the parser in most cases, even on error. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60057 91177308-0d34-0410-b5e6-96231b3b80d8