diff options
Diffstat (limited to 'contrib/llvm/tools/clang/lib/Parse')
-rw-r--r-- | contrib/llvm/tools/clang/lib/Parse/ParseCXXInlineMethods.cpp | 94 | ||||
-rw-r--r-- | contrib/llvm/tools/clang/lib/Parse/ParseDecl.cpp | 54 | ||||
-rw-r--r-- | contrib/llvm/tools/clang/lib/Parse/ParseDeclCXX.cpp | 103 | ||||
-rw-r--r-- | contrib/llvm/tools/clang/lib/Parse/ParseExpr.cpp | 6 | ||||
-rw-r--r-- | contrib/llvm/tools/clang/lib/Parse/ParseExprCXX.cpp | 17 | ||||
-rw-r--r-- | contrib/llvm/tools/clang/lib/Parse/ParseStmt.cpp | 181 | ||||
-rw-r--r-- | contrib/llvm/tools/clang/lib/Parse/ParseTemplate.cpp | 3 | ||||
-rw-r--r-- | contrib/llvm/tools/clang/lib/Parse/Parser.cpp | 28 |
8 files changed, 339 insertions, 147 deletions
diff --git a/contrib/llvm/tools/clang/lib/Parse/ParseCXXInlineMethods.cpp b/contrib/llvm/tools/clang/lib/Parse/ParseCXXInlineMethods.cpp index c000f69..f04d767 100644 --- a/contrib/llvm/tools/clang/lib/Parse/ParseCXXInlineMethods.cpp +++ b/contrib/llvm/tools/clang/lib/Parse/ParseCXXInlineMethods.cpp @@ -59,7 +59,7 @@ Decl *Parser::ParseCXXInlineMethodDef(AccessSpecifier AS, } } - HandleMemberFunctionDefaultArgs(D, FnD); + HandleMemberFunctionDeclDelays(D, FnD); D.complete(FnD); @@ -348,6 +348,77 @@ void Parser::ParseLexedMethodDeclaration(LateParsedMethodDeclaration &LM) { LM.DefaultArgs[I].Toks = 0; } } + + // Parse a delayed exception-specification, if there is one. + if (CachedTokens *Toks = LM.ExceptionSpecTokens) { + // Save the current token position. + SourceLocation origLoc = Tok.getLocation(); + + // Parse the default argument from its saved token stream. + Toks->push_back(Tok); // So that the current token doesn't get lost + PP.EnterTokenStream(&Toks->front(), Toks->size(), true, false); + + // Consume the previously-pushed token. + ConsumeAnyToken(); + + // C++11 [expr.prim.general]p3: + // If a declaration declares a member function or member function + // template of a class X, the expression this is a prvalue of type + // "pointer to cv-qualifier-seq X" between the optional cv-qualifer-seq + // and the end of the function-definition, member-declarator, or + // declarator. + CXXMethodDecl *Method; + if (FunctionTemplateDecl *FunTmpl + = dyn_cast<FunctionTemplateDecl>(LM.Method)) + Method = cast<CXXMethodDecl>(FunTmpl->getTemplatedDecl()); + else + Method = cast<CXXMethodDecl>(LM.Method); + + Sema::CXXThisScopeRAII ThisScope(Actions, Method->getParent(), + Method->getTypeQualifiers(), + getLangOpts().CPlusPlus0x); + + // Parse the exception-specification. + SourceRange SpecificationRange; + SmallVector<ParsedType, 4> DynamicExceptions; + SmallVector<SourceRange, 4> DynamicExceptionRanges; + ExprResult NoexceptExpr; + CachedTokens *ExceptionSpecTokens; + + ExceptionSpecificationType EST + = tryParseExceptionSpecification(/*Delayed=*/false, SpecificationRange, + DynamicExceptions, + DynamicExceptionRanges, NoexceptExpr, + ExceptionSpecTokens); + + // Clean up the remaining tokens. + if (Tok.is(tok::cxx_exceptspec_end)) + ConsumeToken(); + else if (EST != EST_None) + Diag(Tok.getLocation(), diag::err_except_spec_unparsed); + + // Attach the exception-specification to the method. + if (EST != EST_None) + Actions.actOnDelayedExceptionSpecification(LM.Method, EST, + SpecificationRange, + DynamicExceptions, + DynamicExceptionRanges, + NoexceptExpr.isUsable()? + NoexceptExpr.get() : 0); + + assert(!PP.getSourceManager().isBeforeInTranslationUnit(origLoc, + Tok.getLocation()) && + "tryParseExceptionSpecification went over the exception tokens!"); + + // There could be leftover tokens (e.g. because of an error). + // Skip through until we reach the original token position. + while (Tok.getLocation() != origLoc && Tok.isNot(tok::eof)) + ConsumeAnyToken(); + + delete LM.ExceptionSpecTokens; + LM.ExceptionSpecTokens = 0; + } + PrototypeScope.Exit(); // Finish the delayed C++ method declaration. @@ -447,9 +518,9 @@ void Parser::ParseLexedMemberInitializers(ParsingClass &Class) { if (HasTemplateScope) Actions.ActOnReenterTemplateScope(getCurScope(), Class.TagOrTemplate); - // Set or update the scope flags to include Scope::ThisScope. + // Set or update the scope flags. bool AlreadyHasClassScope = Class.TopLevelClass; - unsigned ScopeFlags = Scope::ClassScope|Scope::DeclScope|Scope::ThisScope; + unsigned ScopeFlags = Scope::ClassScope|Scope::DeclScope; ParseScope ClassScope(this, ScopeFlags, !AlreadyHasClassScope); ParseScopeFlags ClassScopeFlags(this, ScopeFlags, AlreadyHasClassScope); @@ -457,10 +528,20 @@ void Parser::ParseLexedMemberInitializers(ParsingClass &Class) { Actions.ActOnStartDelayedMemberDeclarations(getCurScope(), Class.TagOrTemplate); - for (size_t i = 0; i < Class.LateParsedDeclarations.size(); ++i) { - Class.LateParsedDeclarations[i]->ParseLexedMemberInitializers(); + { + // C++11 [expr.prim.general]p4: + // Otherwise, if a member-declarator declares a non-static data member + // (9.2) of a class X, the expression this is a prvalue of type "pointer + // to X" within the optional brace-or-equal-initializer. It shall not + // appear elsewhere in the member-declarator. + Sema::CXXThisScopeRAII ThisScope(Actions, Class.TagOrTemplate, + /*TypeQuals=*/(unsigned)0); + + for (size_t i = 0; i < Class.LateParsedDeclarations.size(); ++i) { + Class.LateParsedDeclarations[i]->ParseLexedMemberInitializers(); + } } - + if (!AlreadyHasClassScope) Actions.ActOnFinishDelayedMemberDeclarations(getCurScope(), Class.TagOrTemplate); @@ -481,6 +562,7 @@ void Parser::ParseLexedMemberInitializer(LateParsedMemberInitializer &MI) { ConsumeAnyToken(); SourceLocation EqualLoc; + ExprResult Init = ParseCXXMemberInitializer(MI.Field, /*IsFunction=*/false, EqualLoc); diff --git a/contrib/llvm/tools/clang/lib/Parse/ParseDecl.cpp b/contrib/llvm/tools/clang/lib/Parse/ParseDecl.cpp index cf3dca2..932ffb4 100644 --- a/contrib/llvm/tools/clang/lib/Parse/ParseDecl.cpp +++ b/contrib/llvm/tools/clang/lib/Parse/ParseDecl.cpp @@ -729,9 +729,9 @@ void Parser::ParseLexedAttributes(ParsingClass &Class) { if (HasTemplateScope) Actions.ActOnReenterTemplateScope(getCurScope(), Class.TagOrTemplate); - // Set or update the scope flags to include Scope::ThisScope. + // Set or update the scope flags. bool AlreadyHasClassScope = Class.TopLevelClass; - unsigned ScopeFlags = Scope::ClassScope|Scope::DeclScope|Scope::ThisScope; + unsigned ScopeFlags = Scope::ClassScope|Scope::DeclScope; ParseScope ClassScope(this, ScopeFlags, !AlreadyHasClassScope); ParseScopeFlags ClassScopeFlags(this, ScopeFlags, AlreadyHasClassScope); @@ -739,11 +739,16 @@ void Parser::ParseLexedAttributes(ParsingClass &Class) { if (!AlreadyHasClassScope) Actions.ActOnStartDelayedMemberDeclarations(getCurScope(), Class.TagOrTemplate); - - for (unsigned i = 0, ni = Class.LateParsedDeclarations.size(); i < ni; ++i) { - Class.LateParsedDeclarations[i]->ParseLexedAttributes(); + { + // Allow 'this' within late-parsed attributes. + Sema::CXXThisScopeRAII ThisScope(Actions, Class.TagOrTemplate, + /*TypeQuals=*/0); + + for (unsigned i = 0, ni = Class.LateParsedDeclarations.size(); i < ni; ++i){ + Class.LateParsedDeclarations[i]->ParseLexedAttributes(); + } } - + if (!AlreadyHasClassScope) Actions.ActOnFinishDelayedMemberDeclarations(getCurScope(), Class.TagOrTemplate); @@ -756,6 +761,7 @@ void Parser::ParseLexedAttributeList(LateParsedAttrList &LAs, Decl *D, for (unsigned i = 0, ni = LAs.size(); i < ni; ++i) { LAs[i]->addDecl(D); ParseLexedAttribute(*LAs[i], EnterScope, OnDefinition); + delete LAs[i]; } LAs.clear(); } @@ -958,7 +964,7 @@ void Parser::DiagnoseProhibitedAttributes(ParsedAttributesWithRange &attrs) { /// [C++] namespace-definition /// [C++] using-directive /// [C++] using-declaration -/// [C++0x/C11] static_assert-declaration +/// [C++11/C11] static_assert-declaration /// others... [FIXME] /// Parser::DeclGroupPtrTy Parser::ParseDeclaration(StmtVector &Stmts, @@ -4191,6 +4197,7 @@ void Parser::ParseFunctionDeclarator(Declarator &D, SmallVector<ParsedType, 2> DynamicExceptions; SmallVector<SourceRange, 2> DynamicExceptionRanges; ExprResult NoexceptExpr; + CachedTokens *ExceptionSpecTokens = 0; ParsedAttributes FnAttrs(AttrFactory); ParsedType TrailingReturnType; @@ -4241,11 +4248,34 @@ void Parser::ParseFunctionDeclarator(Declarator &D, EndLoc = RefQualifierLoc; } + // C++11 [expr.prim.general]p3: + // If a declaration declares a member function or member function + // template of a class X, the expression this is a prvalue of type + // "pointer to cv-qualifier-seq X" between the optional cv-qualifer-seq + // and the end of the function-definition, member-declarator, or + // declarator. + bool IsCXX11MemberFunction = + getLangOpts().CPlusPlus0x && + (D.getContext() == Declarator::MemberContext || + (D.getContext() == Declarator::FileContext && + D.getCXXScopeSpec().isValid() && + Actions.CurContext->isRecord())); + Sema::CXXThisScopeRAII ThisScope(Actions, + dyn_cast<CXXRecordDecl>(Actions.CurContext), + DS.getTypeQualifiers(), + IsCXX11MemberFunction); + // Parse exception-specification[opt]. - ESpecType = MaybeParseExceptionSpecification(ESpecRange, - DynamicExceptions, - DynamicExceptionRanges, - NoexceptExpr); + bool Delayed = (D.getContext() == Declarator::MemberContext && + D.getDeclSpec().getStorageClassSpec() + != DeclSpec::SCS_typedef && + !D.getDeclSpec().isFriendSpecified()); + ESpecType = tryParseExceptionSpecification(Delayed, + ESpecRange, + DynamicExceptions, + DynamicExceptionRanges, + NoexceptExpr, + ExceptionSpecTokens); if (ESpecType != EST_None) EndLoc = ESpecRange.getEnd(); @@ -4280,6 +4310,7 @@ void Parser::ParseFunctionDeclarator(Declarator &D, DynamicExceptions.size(), NoexceptExpr.isUsable() ? NoexceptExpr.get() : 0, + ExceptionSpecTokens, Tracker.getOpenLocation(), EndLoc, D, TrailingReturnType), @@ -4481,7 +4512,6 @@ void Parser::ParseParameterDeclarationClause( // If we're inside a class definition, cache the tokens // corresponding to the default argument. We'll actually parse // them when we see the end of the class definition. - // FIXME: Templates will require something similar. // FIXME: Can we use a smart pointer for Toks? DefArgToks = new CachedTokens; diff --git a/contrib/llvm/tools/clang/lib/Parse/ParseDeclCXX.cpp b/contrib/llvm/tools/clang/lib/Parse/ParseDeclCXX.cpp index b2a65ff..b9b51d7 100644 --- a/contrib/llvm/tools/clang/lib/Parse/ParseDeclCXX.cpp +++ b/contrib/llvm/tools/clang/lib/Parse/ParseDeclCXX.cpp @@ -1534,13 +1534,35 @@ AccessSpecifier Parser::getAccessSpecifierIfPresent() const { } } -void Parser::HandleMemberFunctionDefaultArgs(Declarator& DeclaratorInfo, - Decl *ThisDecl) { +/// \brief If the given declarator has any parts for which parsing has to be +/// delayed, e.g., default arguments or an exception-specification, create a +/// late-parsed method declaration record to handle the parsing at the end of +/// the class definition. +void Parser::HandleMemberFunctionDeclDelays(Declarator& DeclaratorInfo, + Decl *ThisDecl) { // We just declared a member function. If this member function - // has any default arguments, we'll need to parse them later. + // has any default arguments or an exception-specification, we'll need to + // parse them later. LateParsedMethodDeclaration *LateMethod = 0; DeclaratorChunk::FunctionTypeInfo &FTI = DeclaratorInfo.getFunctionTypeInfo(); + + // If there was a delayed exception-specification, hold onto its tokens. + if (FTI.getExceptionSpecType() == EST_Delayed) { + // Push this method onto the stack of late-parsed method + // declarations. + LateMethod = new LateParsedMethodDeclaration(this, ThisDecl); + getCurrentClass().LateParsedDeclarations.push_back(LateMethod); + LateMethod->TemplateScope = getCurScope()->isTemplateParamScope(); + + // Stash the exception-specification tokens in the late-pased mthod. + LateMethod->ExceptionSpecTokens = FTI.ExceptionSpecTokens; + FTI.ExceptionSpecTokens = 0; + + // Reserve space for the parameters. + LateMethod->DefaultArgs.reserve(FTI.NumArgs); + } + for (unsigned ParamIdx = 0; ParamIdx < FTI.NumArgs; ++ParamIdx) { if (LateMethod || FTI.ArgInfo[ParamIdx].DefaultArgTokens) { if (!LateMethod) { @@ -1558,7 +1580,7 @@ void Parser::HandleMemberFunctionDefaultArgs(Declarator& DeclaratorInfo, LateParsedDefaultArgument(FTI.ArgInfo[I].Param)); } - // Add this parameter to the list of parameters (it or may + // Add this parameter to the list of parameters (it may or may // not have a default argument). LateMethod->DefaultArgs.push_back( LateParsedDefaultArgument(FTI.ArgInfo[ParamIdx].Param, @@ -1824,7 +1846,7 @@ void Parser::ParseCXXClassMemberDeclaration(AccessSpecifier AS, // Parse the first declarator. ParseDeclarator(DeclaratorInfo); - // Error parsing the declarator? + // Error parsin g the declarator? if (!DeclaratorInfo.hasName()) { // If so, skip until the semi-colon or a }. SkipUntil(tok::r_brace, true, true); @@ -2046,7 +2068,7 @@ void Parser::ParseCXXClassMemberDeclaration(AccessSpecifier AS, if (DeclaratorInfo.isFunctionDeclarator() && DeclaratorInfo.getDeclSpec().getStorageClassSpec() != DeclSpec::SCS_typedef) { - HandleMemberFunctionDefaultArgs(DeclaratorInfo, ThisDecl); + HandleMemberFunctionDeclDelays(DeclaratorInfo, ThisDecl); } DeclaratorInfo.complete(ThisDecl); @@ -2334,13 +2356,11 @@ void Parser::ParseCXXMemberSpecification(SourceLocation RecordLoc, T.getCloseLocation(), attrs.getList()); - // C++0x [class.mem]p2: Within the class member-specification, the class is - // regarded as complete within function bodies, default arguments, exception- - // specifications, and brace-or-equal-initializers for non-static data - // members (including such things in nested classes). - // - // FIXME: Only function bodies and brace-or-equal-initializers are currently - // handled. Fix the others! + // C++11 [class.mem]p2: + // Within the class member-specification, the class is regarded as complete + // within function bodies, default arguments, exception-specifications, and + // brace-or-equal-initializers for non-static data members (including such + // things in nested classes). if (TagDecl && NonNestedClass) { // We are not inside a nested class. This class and its nested classes // are complete and we can parse the delayed portions of method @@ -2535,12 +2555,63 @@ Parser::MemInitResult Parser::ParseMemInitializer(Decl *ConstructorDecl) { /// 'noexcept' /// 'noexcept' '(' constant-expression ')' ExceptionSpecificationType -Parser::MaybeParseExceptionSpecification(SourceRange &SpecificationRange, +Parser::tryParseExceptionSpecification(bool Delayed, + SourceRange &SpecificationRange, SmallVectorImpl<ParsedType> &DynamicExceptions, SmallVectorImpl<SourceRange> &DynamicExceptionRanges, - ExprResult &NoexceptExpr) { + ExprResult &NoexceptExpr, + CachedTokens *&ExceptionSpecTokens) { ExceptionSpecificationType Result = EST_None; - + ExceptionSpecTokens = 0; + + // Handle delayed parsing of exception-specifications. + if (Delayed) { + if (Tok.isNot(tok::kw_throw) && Tok.isNot(tok::kw_noexcept)) + return EST_None; + + // Consume and cache the starting token. + bool IsNoexcept = Tok.is(tok::kw_noexcept); + Token StartTok = Tok; + SpecificationRange = SourceRange(ConsumeToken()); + + // Check for a '('. + if (!Tok.is(tok::l_paren)) { + // If this is a bare 'noexcept', we're done. + if (IsNoexcept) { + Diag(Tok, diag::warn_cxx98_compat_noexcept_decl); + NoexceptExpr = 0; + return EST_BasicNoexcept; + } + + Diag(Tok, diag::err_expected_lparen_after) << "throw"; + return EST_DynamicNone; + } + + // Cache the tokens for the exception-specification. + ExceptionSpecTokens = new CachedTokens; + ExceptionSpecTokens->push_back(StartTok); // 'throw' or 'noexcept' + ExceptionSpecTokens->push_back(Tok); // '(' + SpecificationRange.setEnd(ConsumeParen()); // '(' + + if (!ConsumeAndStoreUntil(tok::r_paren, *ExceptionSpecTokens, + /*StopAtSemi=*/true, + /*ConsumeFinalToken=*/true)) { + NoexceptExpr = 0; + delete ExceptionSpecTokens; + ExceptionSpecTokens = 0; + return IsNoexcept? EST_BasicNoexcept : EST_DynamicNone; + } + SpecificationRange.setEnd(Tok.getLocation()); + + // Add the 'stop' token. + Token End; + End.startToken(); + End.setKind(tok::cxx_exceptspec_end); + End.setLocation(Tok.getLocation()); + ExceptionSpecTokens->push_back(End); + return EST_Delayed; + } + // See if there's a dynamic specification. if (Tok.is(tok::kw_throw)) { Result = ParseDynamicExceptionSpecification(SpecificationRange, diff --git a/contrib/llvm/tools/clang/lib/Parse/ParseExpr.cpp b/contrib/llvm/tools/clang/lib/Parse/ParseExpr.cpp index 7f3a815..b6a027b 100644 --- a/contrib/llvm/tools/clang/lib/Parse/ParseExpr.cpp +++ b/contrib/llvm/tools/clang/lib/Parse/ParseExpr.cpp @@ -1926,11 +1926,9 @@ Parser::ParseParenExpression(ParenParseOption &ExprType, bool stopIfCastExpr, // unless they've already reported an error. if (ExprType >= CompoundStmt && Tok.is(tok::l_brace)) { Diag(Tok, diag::ext_gnu_statement_expr); - Actions.ActOnStartStmtExpr(); - ParsedAttributes attrs(AttrFactory); - StmtResult Stmt(ParseCompoundStatement(attrs, true)); + StmtResult Stmt(ParseCompoundStatement(true)); ExprType = CompoundStmt; // If the substmt parsed correctly, build the AST node. @@ -2394,7 +2392,7 @@ ExprResult Parser::ParseBlockLiteralExpression() { SourceLocation(), EST_None, SourceLocation(), - 0, 0, 0, 0, + 0, 0, 0, 0, 0, CaretLoc, CaretLoc, ParamInfo), attrs, CaretLoc); diff --git a/contrib/llvm/tools/clang/lib/Parse/ParseExprCXX.cpp b/contrib/llvm/tools/clang/lib/Parse/ParseExprCXX.cpp index 2af7482..ae6ad0b 100644 --- a/contrib/llvm/tools/clang/lib/Parse/ParseExprCXX.cpp +++ b/contrib/llvm/tools/clang/lib/Parse/ParseExprCXX.cpp @@ -780,10 +780,13 @@ ExprResult Parser::ParseLambdaExpressionAfterIntroducer( llvm::SmallVector<ParsedType, 2> DynamicExceptions; llvm::SmallVector<SourceRange, 2> DynamicExceptionRanges; ExprResult NoexceptExpr; - ESpecType = MaybeParseExceptionSpecification(ESpecRange, - DynamicExceptions, - DynamicExceptionRanges, - NoexceptExpr); + CachedTokens *ExceptionSpecTokens; + ESpecType = tryParseExceptionSpecification(/*Delayed=*/false, + ESpecRange, + DynamicExceptions, + DynamicExceptionRanges, + NoexceptExpr, + ExceptionSpecTokens); if (ESpecType != EST_None) DeclEndLoc = ESpecRange.getEnd(); @@ -818,6 +821,7 @@ ExprResult Parser::ParseLambdaExpressionAfterIntroducer( DynamicExceptions.size(), NoexceptExpr.isUsable() ? NoexceptExpr.get() : 0, + 0, DeclLoc, DeclEndLoc, D, TrailingReturnType), Attr, DeclEndLoc); @@ -863,6 +867,7 @@ ExprResult Parser::ParseLambdaExpressionAfterIntroducer( /*ExceptionRanges=*/0, /*NumExceptions=*/0, /*NoexceptExpr=*/0, + /*ExceptionSpecTokens=*/0, DeclLoc, DeclEndLoc, D, TrailingReturnType), Attr, DeclEndLoc); @@ -872,8 +877,6 @@ ExprResult Parser::ParseLambdaExpressionAfterIntroducer( // FIXME: Rename BlockScope -> ClosureScope if we decide to continue using // it. unsigned ScopeFlags = Scope::BlockScope | Scope::FnScope | Scope::DeclScope; - if (getCurScope()->getFlags() & Scope::ThisScope) - ScopeFlags |= Scope::ThisScope; ParseScope BodyScope(this, ScopeFlags); Actions.ActOnStartOfLambdaDefinition(Intro, D, getCurScope()); @@ -1711,7 +1714,7 @@ bool Parser::ParseUnqualifiedIdTemplateId(CXXScopeSpec &SS, // Form a parsed representation of the template-id to be stored in the // UnqualifiedId. TemplateIdAnnotation *TemplateId - = TemplateIdAnnotation::Allocate(TemplateArgs.size()); + = TemplateIdAnnotation::Allocate(TemplateArgs.size(), TemplateIds); if (Id.getKind() == UnqualifiedId::IK_Identifier) { TemplateId->Name = Id.Identifier; diff --git a/contrib/llvm/tools/clang/lib/Parse/ParseStmt.cpp b/contrib/llvm/tools/clang/lib/Parse/ParseStmt.cpp index fdb9788..44320df 100644 --- a/contrib/llvm/tools/clang/lib/Parse/ParseStmt.cpp +++ b/contrib/llvm/tools/clang/lib/Parse/ParseStmt.cpp @@ -78,13 +78,30 @@ using namespace clang; StmtResult Parser::ParseStatementOrDeclaration(StmtVector &Stmts, bool OnlyStatement, SourceLocation *TrailingElseLoc) { - const char *SemiError = 0; - StmtResult Res; ParenBraceBracketBalancer BalancerRAIIObj(*this); - ParsedAttributesWithRange attrs(AttrFactory); - MaybeParseCXX0XAttributes(attrs, 0, /*MightBeObjCMessageSend*/ true); + ParsedAttributesWithRange Attrs(AttrFactory); + MaybeParseCXX0XAttributes(Attrs, 0, /*MightBeObjCMessageSend*/ true); + + StmtResult Res = ParseStatementOrDeclarationAfterAttributes(Stmts, + OnlyStatement, TrailingElseLoc, Attrs); + + assert((Attrs.empty() || Res.isInvalid() || Res.isUsable()) && + "attributes on empty statement"); + + if (Attrs.empty() || Res.isInvalid()) + return Res; + + return Actions.ProcessStmtAttributes(Res.get(), Attrs.getList(), Attrs.Range); +} + +StmtResult +Parser::ParseStatementOrDeclarationAfterAttributes(StmtVector &Stmts, + bool OnlyStatement, SourceLocation *TrailingElseLoc, + ParsedAttributesWithRange &Attrs) { + const char *SemiError = 0; + StmtResult Res; // Cases in this switch statement should fall through if the parser expects // the token to end in a semicolon (in which case SemiError should be set), @@ -95,6 +112,7 @@ Retry: switch (Kind) { case tok::at: // May be a @try or @throw statement { + ProhibitAttributes(Attrs); // TODO: is it correct? AtLoc = ConsumeToken(); // consume @ return ParseObjCAtStatement(AtLoc); } @@ -108,7 +126,7 @@ Retry: Token Next = NextToken(); if (Next.is(tok::colon)) { // C99 6.8.1: labeled-statement // identifier ':' statement - return ParseLabeledStatement(attrs); + return ParseLabeledStatement(Attrs); } if (Next.isNot(tok::coloncolon)) { @@ -210,7 +228,7 @@ Retry: if ((getLangOpts().CPlusPlus || !OnlyStatement) && isDeclarationStatement()) { SourceLocation DeclStart = Tok.getLocation(), DeclEnd; DeclGroupPtrTy Decl = ParseDeclaration(Stmts, Declarator::BlockContext, - DeclEnd, attrs); + DeclEnd, Attrs); return Actions.ActOnDeclStmt(Decl, DeclStart, DeclEnd); } @@ -219,54 +237,54 @@ Retry: return StmtError(); } - return ParseExprStatement(attrs); + return ParseExprStatement(); } case tok::kw_case: // C99 6.8.1: labeled-statement - return ParseCaseStatement(attrs); + return ParseCaseStatement(); case tok::kw_default: // C99 6.8.1: labeled-statement - return ParseDefaultStatement(attrs); + return ParseDefaultStatement(); case tok::l_brace: // C99 6.8.2: compound-statement - return ParseCompoundStatement(attrs); + return ParseCompoundStatement(); case tok::semi: { // C99 6.8.3p3: expression[opt] ';' bool HasLeadingEmptyMacro = Tok.hasLeadingEmptyMacro(); return Actions.ActOnNullStmt(ConsumeToken(), HasLeadingEmptyMacro); } case tok::kw_if: // C99 6.8.4.1: if-statement - return ParseIfStatement(attrs, TrailingElseLoc); + return ParseIfStatement(TrailingElseLoc); case tok::kw_switch: // C99 6.8.4.2: switch-statement - return ParseSwitchStatement(attrs, TrailingElseLoc); + return ParseSwitchStatement(TrailingElseLoc); case tok::kw_while: // C99 6.8.5.1: while-statement - return ParseWhileStatement(attrs, TrailingElseLoc); + return ParseWhileStatement(TrailingElseLoc); case tok::kw_do: // C99 6.8.5.2: do-statement - Res = ParseDoStatement(attrs); + Res = ParseDoStatement(); SemiError = "do/while"; break; case tok::kw_for: // C99 6.8.5.3: for-statement - return ParseForStatement(attrs, TrailingElseLoc); + return ParseForStatement(TrailingElseLoc); case tok::kw_goto: // C99 6.8.6.1: goto-statement - Res = ParseGotoStatement(attrs); + Res = ParseGotoStatement(); SemiError = "goto"; break; case tok::kw_continue: // C99 6.8.6.2: continue-statement - Res = ParseContinueStatement(attrs); + Res = ParseContinueStatement(); SemiError = "continue"; break; case tok::kw_break: // C99 6.8.6.3: break-statement - Res = ParseBreakStatement(attrs); + Res = ParseBreakStatement(); SemiError = "break"; break; case tok::kw_return: // C99 6.8.6.4: return-statement - Res = ParseReturnStatement(attrs); + Res = ParseReturnStatement(); SemiError = "return"; break; case tok::kw_asm: { - ProhibitAttributes(attrs); + ProhibitAttributes(Attrs); bool msAsm = false; Res = ParseAsmStatement(msAsm); Res = Actions.ActOnFinishFullStmt(Res.get()); @@ -276,16 +294,19 @@ Retry: } case tok::kw_try: // C++ 15: try-block - return ParseCXXTryBlock(attrs); + return ParseCXXTryBlock(); case tok::kw___try: - return ParseSEHTryBlock(attrs); + ProhibitAttributes(Attrs); // TODO: is it correct? + return ParseSEHTryBlock(); case tok::annot_pragma_vis: + ProhibitAttributes(Attrs); HandlePragmaVisibility(); return StmtEmpty(); case tok::annot_pragma_pack: + ProhibitAttributes(Attrs); HandlePragmaPack(); return StmtEmpty(); } @@ -306,11 +327,10 @@ Retry: } /// \brief Parse an expression statement. -StmtResult Parser::ParseExprStatement(ParsedAttributes &Attrs) { +StmtResult Parser::ParseExprStatement() { // If a case keyword is missing, this is where it should be inserted. Token OldToken = Tok; - // FIXME: Use the attributes // expression[opt] ';' ExprResult Expr(ParseExpression()); if (Expr.isInvalid()) { @@ -331,7 +351,7 @@ StmtResult Parser::ParseExprStatement(ParsedAttributes &Attrs) { << FixItHint::CreateInsertion(OldToken.getLocation(), "case "); // Recover parsing as a case statement. - return ParseCaseStatement(Attrs, /*MissingCase=*/true, Expr); + return ParseCaseStatement(/*MissingCase=*/true, Expr); } // Otherwise, eat the semicolon. @@ -339,7 +359,7 @@ StmtResult Parser::ParseExprStatement(ParsedAttributes &Attrs) { return Actions.ActOnExprStmt(Actions.MakeFullExpr(Expr.get())); } -StmtResult Parser::ParseSEHTryBlock(ParsedAttributes & Attrs) { +StmtResult Parser::ParseSEHTryBlock() { assert(Tok.is(tok::kw___try) && "Expected '__try'"); SourceLocation Loc = ConsumeToken(); return ParseSEHTryBlockCommon(Loc); @@ -358,13 +378,12 @@ StmtResult Parser::ParseSEHTryBlockCommon(SourceLocation TryLoc) { if(Tok.isNot(tok::l_brace)) return StmtError(Diag(Tok,diag::err_expected_lbrace)); - ParsedAttributesWithRange attrs(AttrFactory); - StmtResult TryBlock(ParseCompoundStatement(attrs)); + StmtResult TryBlock(ParseCompoundStatement()); if(TryBlock.isInvalid()) return move(TryBlock); StmtResult Handler; - if (Tok.is(tok::identifier) && + if (Tok.is(tok::identifier) && Tok.getIdentifierInfo() == getSEHExceptKeyword()) { SourceLocation Loc = ConsumeToken(); Handler = ParseSEHExceptBlock(Loc); @@ -418,8 +437,7 @@ StmtResult Parser::ParseSEHExceptBlock(SourceLocation ExceptLoc) { if(ExpectAndConsume(tok::r_paren,diag::err_expected_rparen)) return StmtError(); - ParsedAttributesWithRange attrs(AttrFactory); - StmtResult Block(ParseCompoundStatement(attrs)); + StmtResult Block(ParseCompoundStatement()); if(Block.isInvalid()) return move(Block); @@ -437,8 +455,7 @@ StmtResult Parser::ParseSEHFinallyBlock(SourceLocation FinallyBlock) { raii2(Ident___abnormal_termination, false), raii3(Ident_AbnormalTermination, false); - ParsedAttributesWithRange attrs(AttrFactory); - StmtResult Block(ParseCompoundStatement(attrs)); + StmtResult Block(ParseCompoundStatement()); if(Block.isInvalid()) return move(Block); @@ -451,7 +468,7 @@ StmtResult Parser::ParseSEHFinallyBlock(SourceLocation FinallyBlock) { /// identifier ':' statement /// [GNU] identifier ':' attributes[opt] statement /// -StmtResult Parser::ParseLabeledStatement(ParsedAttributes &attrs) { +StmtResult Parser::ParseLabeledStatement(ParsedAttributesWithRange &attrs) { assert(Tok.is(tok::identifier) && Tok.getIdentifierInfo() && "Not an identifier!"); @@ -463,7 +480,8 @@ StmtResult Parser::ParseLabeledStatement(ParsedAttributes &attrs) { // identifier ':' statement SourceLocation ColonLoc = ConsumeToken(); - // Read label attributes, if present. + // Read label attributes, if present. attrs will contain both C++11 and GNU + // attributes (if present) after this point. MaybeParseGNUAttributes(attrs); StmtResult SubStmt(ParseStatement()); @@ -474,8 +492,10 @@ StmtResult Parser::ParseLabeledStatement(ParsedAttributes &attrs) { LabelDecl *LD = Actions.LookupOrCreateLabel(IdentTok.getIdentifierInfo(), IdentTok.getLocation()); - if (AttributeList *Attrs = attrs.getList()) + if (AttributeList *Attrs = attrs.getList()) { Actions.ProcessDeclAttributeList(Actions.CurScope, LD, Attrs); + attrs.clear(); + } return Actions.ActOnLabelStmt(IdentTok.getLocation(), LD, ColonLoc, SubStmt.get()); @@ -486,10 +506,8 @@ StmtResult Parser::ParseLabeledStatement(ParsedAttributes &attrs) { /// 'case' constant-expression ':' statement /// [GNU] 'case' constant-expression '...' constant-expression ':' statement /// -StmtResult Parser::ParseCaseStatement(ParsedAttributes &attrs, bool MissingCase, - ExprResult Expr) { +StmtResult Parser::ParseCaseStatement(bool MissingCase, ExprResult Expr) { assert((MissingCase || Tok.is(tok::kw_case)) && "Not a case stmt!"); - // FIXME: Use attributes? // It is very very common for code to contain many case statements recursively // nested, as in (but usually without indentation): @@ -625,9 +643,7 @@ StmtResult Parser::ParseCaseStatement(ParsedAttributes &attrs, bool MissingCase, /// 'default' ':' statement /// Note that this does not parse the 'statement' at the end. /// -StmtResult Parser::ParseDefaultStatement(ParsedAttributes &attrs) { - //FIXME: Use attributes? - +StmtResult Parser::ParseDefaultStatement() { assert(Tok.is(tok::kw_default) && "Not a default stmt!"); SourceLocation DefaultLoc = ConsumeToken(); // eat the 'default'. @@ -668,9 +684,8 @@ StmtResult Parser::ParseDefaultStatement(ParsedAttributes &attrs) { SubStmt.get(), getCurScope()); } -StmtResult Parser::ParseCompoundStatement(ParsedAttributes &Attr, - bool isStmtExpr) { - return ParseCompoundStatement(Attr, isStmtExpr, Scope::DeclScope); +StmtResult Parser::ParseCompoundStatement(bool isStmtExpr) { + return ParseCompoundStatement(isStmtExpr, Scope::DeclScope); } /// ParseCompoundStatement - Parse a "{}" block. @@ -700,11 +715,8 @@ StmtResult Parser::ParseCompoundStatement(ParsedAttributes &Attr, /// [OMP] barrier-directive /// [OMP] flush-directive /// -StmtResult Parser::ParseCompoundStatement(ParsedAttributes &attrs, - bool isStmtExpr, +StmtResult Parser::ParseCompoundStatement(bool isStmtExpr, unsigned ScopeFlags) { - //FIXME: Use attributes? - assert(Tok.is(tok::l_brace) && "Not a compount stmt!"); // Enter a scope to hold everything within the compound stmt. Compound @@ -894,10 +906,7 @@ bool Parser::ParseParenExprOrCondition(ExprResult &ExprResult, /// [C++] 'if' '(' condition ')' statement /// [C++] 'if' '(' condition ')' statement 'else' statement /// -StmtResult Parser::ParseIfStatement(ParsedAttributes &attrs, - SourceLocation *TrailingElseLoc) { - // FIXME: Use attributes? - +StmtResult Parser::ParseIfStatement(SourceLocation *TrailingElseLoc) { assert(Tok.is(tok::kw_if) && "Not an if stmt!"); SourceLocation IfLoc = ConsumeToken(); // eat the 'if'. @@ -1028,10 +1037,7 @@ StmtResult Parser::ParseIfStatement(ParsedAttributes &attrs, /// switch-statement: /// 'switch' '(' expression ')' statement /// [C++] 'switch' '(' condition ')' statement -StmtResult Parser::ParseSwitchStatement(ParsedAttributes &attrs, - SourceLocation *TrailingElseLoc) { - // FIXME: Use attributes? - +StmtResult Parser::ParseSwitchStatement(SourceLocation *TrailingElseLoc) { assert(Tok.is(tok::kw_switch) && "Not a switch stmt!"); SourceLocation SwitchLoc = ConsumeToken(); // eat the 'switch'. @@ -1119,10 +1125,7 @@ StmtResult Parser::ParseSwitchStatement(ParsedAttributes &attrs, /// while-statement: [C99 6.8.5.1] /// 'while' '(' expression ')' statement /// [C++] 'while' '(' condition ')' statement -StmtResult Parser::ParseWhileStatement(ParsedAttributes &attrs, - SourceLocation *TrailingElseLoc) { - // FIXME: Use attributes? - +StmtResult Parser::ParseWhileStatement(SourceLocation *TrailingElseLoc) { assert(Tok.is(tok::kw_while) && "Not a while stmt!"); SourceLocation WhileLoc = Tok.getLocation(); ConsumeToken(); // eat the 'while'. @@ -1194,9 +1197,7 @@ StmtResult Parser::ParseWhileStatement(ParsedAttributes &attrs, /// do-statement: [C99 6.8.5.2] /// 'do' statement 'while' '(' expression ')' ';' /// Note: this lets the caller parse the end ';'. -StmtResult Parser::ParseDoStatement(ParsedAttributes &attrs) { - // FIXME: Use attributes? - +StmtResult Parser::ParseDoStatement() { assert(Tok.is(tok::kw_do) && "Not a do stmt!"); SourceLocation DoLoc = ConsumeToken(); // eat the 'do'. @@ -1277,10 +1278,7 @@ StmtResult Parser::ParseDoStatement(ParsedAttributes &attrs) { /// [C++0x] for-range-initializer: /// [C++0x] expression /// [C++0x] braced-init-list [TODO] -StmtResult Parser::ParseForStatement(ParsedAttributes &attrs, - SourceLocation *TrailingElseLoc) { - // FIXME: Use attributes? - +StmtResult Parser::ParseForStatement(SourceLocation *TrailingElseLoc) { assert(Tok.is(tok::kw_for) && "Not a for stmt!"); SourceLocation ForLoc = ConsumeToken(); // eat the 'for'. @@ -1535,9 +1533,7 @@ StmtResult Parser::ParseForStatement(ParsedAttributes &attrs, /// /// Note: this lets the caller parse the end ';'. /// -StmtResult Parser::ParseGotoStatement(ParsedAttributes &attrs) { - // FIXME: Use attributes? - +StmtResult Parser::ParseGotoStatement() { assert(Tok.is(tok::kw_goto) && "Not a goto stmt!"); SourceLocation GotoLoc = ConsumeToken(); // eat the 'goto'. @@ -1571,9 +1567,7 @@ StmtResult Parser::ParseGotoStatement(ParsedAttributes &attrs) { /// /// Note: this lets the caller parse the end ';'. /// -StmtResult Parser::ParseContinueStatement(ParsedAttributes &attrs) { - // FIXME: Use attributes? - +StmtResult Parser::ParseContinueStatement() { SourceLocation ContinueLoc = ConsumeToken(); // eat the 'continue'. return Actions.ActOnContinueStmt(ContinueLoc, getCurScope()); } @@ -1584,9 +1578,7 @@ StmtResult Parser::ParseContinueStatement(ParsedAttributes &attrs) { /// /// Note: this lets the caller parse the end ';'. /// -StmtResult Parser::ParseBreakStatement(ParsedAttributes &attrs) { - // FIXME: Use attributes? - +StmtResult Parser::ParseBreakStatement() { SourceLocation BreakLoc = ConsumeToken(); // eat the 'break'. return Actions.ActOnBreakStmt(BreakLoc, getCurScope()); } @@ -1594,9 +1586,7 @@ StmtResult Parser::ParseBreakStatement(ParsedAttributes &attrs) { /// ParseReturnStatement /// jump-statement: /// 'return' expression[opt] ';' -StmtResult Parser::ParseReturnStatement(ParsedAttributes &attrs) { - // FIXME: Use attributes? - +StmtResult Parser::ParseReturnStatement() { assert(Tok.is(tok::kw_return) && "Not a return stmt!"); SourceLocation ReturnLoc = ConsumeToken(); // eat the 'return'. @@ -2043,9 +2033,7 @@ bool Parser::trySkippingFunctionBody() { /// try-block: /// 'try' compound-statement handler-seq /// -StmtResult Parser::ParseCXXTryBlock(ParsedAttributes &attrs) { - // FIXME: Add attributes? - +StmtResult Parser::ParseCXXTryBlock() { assert(Tok.is(tok::kw_try) && "Expected 'try'"); SourceLocation TryLoc = ConsumeToken(); @@ -2072,17 +2060,17 @@ StmtResult Parser::ParseCXXTryBlockCommon(SourceLocation TryLoc) { if (Tok.isNot(tok::l_brace)) return StmtError(Diag(Tok, diag::err_expected_lbrace)); // FIXME: Possible draft standard bug: attribute-specifier should be allowed? - ParsedAttributesWithRange attrs(AttrFactory); - StmtResult TryBlock(ParseCompoundStatement(attrs, /*isStmtExpr=*/false, + + StmtResult TryBlock(ParseCompoundStatement(/*isStmtExpr=*/false, Scope::DeclScope|Scope::TryScope)); if (TryBlock.isInvalid()) return move(TryBlock); // Borland allows SEH-handlers with 'try' - if((Tok.is(tok::identifier) && - Tok.getIdentifierInfo() == getSEHExceptKeyword()) || - Tok.is(tok::kw___finally)) { + if ((Tok.is(tok::identifier) && + Tok.getIdentifierInfo() == getSEHExceptKeyword()) || + Tok.is(tok::kw___finally)) { // TODO: Factor into common return ParseSEHHandlerCommon(...) StmtResult Handler; if(Tok.getIdentifierInfo() == getSEHExceptKeyword()) { @@ -2103,6 +2091,7 @@ StmtResult Parser::ParseCXXTryBlockCommon(SourceLocation TryLoc) { } else { StmtVector Handlers(Actions); + ParsedAttributesWithRange attrs(AttrFactory); MaybeParseCXX0XAttributes(attrs); ProhibitAttributes(attrs); @@ -2168,8 +2157,7 @@ StmtResult Parser::ParseCXXCatchBlock() { return StmtError(Diag(Tok, diag::err_expected_lbrace)); // FIXME: Possible draft standard bug: attribute-specifier should be allowed? - ParsedAttributes attrs(AttrFactory); - StmtResult Block(ParseCompoundStatement(attrs)); + StmtResult Block(ParseCompoundStatement()); if (Block.isInvalid()) return move(Block); @@ -2188,24 +2176,23 @@ void Parser::ParseMicrosoftIfExistsStatement(StmtVector &Stmts) { if (Result.Behavior == IEB_Dependent) { if (!Tok.is(tok::l_brace)) { Diag(Tok, diag::err_expected_lbrace); - return; + return; } - - ParsedAttributes Attrs(AttrFactory); - StmtResult Compound = ParseCompoundStatement(Attrs); + + StmtResult Compound = ParseCompoundStatement(); if (Compound.isInvalid()) return; - + StmtResult DepResult = Actions.ActOnMSDependentExistsStmt(Result.KeywordLoc, Result.IsIfExists, - Result.SS, + Result.SS, Result.Name, Compound.get()); if (DepResult.isUsable()) Stmts.push_back(DepResult.get()); return; } - + BalancedDelimiterTracker Braces(*this, tok::l_brace); if (Braces.consumeOpen()) { Diag(Tok, diag::err_expected_lbrace); diff --git a/contrib/llvm/tools/clang/lib/Parse/ParseTemplate.cpp b/contrib/llvm/tools/clang/lib/Parse/ParseTemplate.cpp index 61cd9f2..5c3e2ba 100644 --- a/contrib/llvm/tools/clang/lib/Parse/ParseTemplate.cpp +++ b/contrib/llvm/tools/clang/lib/Parse/ParseTemplate.cpp @@ -652,6 +652,7 @@ Parser::ParseNonTypeTemplateParameter(unsigned Depth, unsigned Position) { // end of the template-parameter-list rather than a greater-than // operator. GreaterThanIsOperatorScope G(GreaterThanIsOperator, false); + EnterExpressionEvaluationContext Unevaluated(Actions, Sema::Unevaluated); DefaultArg = ParseAssignmentExpression(); if (DefaultArg.isInvalid()) @@ -838,7 +839,7 @@ bool Parser::AnnotateTemplateIdToken(TemplateTy Template, TemplateNameKind TNK, // later. Tok.setKind(tok::annot_template_id); TemplateIdAnnotation *TemplateId - = TemplateIdAnnotation::Allocate(TemplateArgs.size()); + = TemplateIdAnnotation::Allocate(TemplateArgs.size(), TemplateIds); TemplateId->TemplateNameLoc = TemplateNameLoc; if (TemplateName.getKind() == UnqualifiedId::IK_Identifier) { TemplateId->Name = TemplateName.Identifier; diff --git a/contrib/llvm/tools/clang/lib/Parse/Parser.cpp b/contrib/llvm/tools/clang/lib/Parse/Parser.cpp index 054a8fd..f1b99fb 100644 --- a/contrib/llvm/tools/clang/lib/Parse/Parser.cpp +++ b/contrib/llvm/tools/clang/lib/Parse/Parser.cpp @@ -397,6 +397,8 @@ Parser::~Parser() { PP.RemovePragmaHandler("STDC", FPContractHandler.get()); FPContractHandler.reset(); PP.clearCodeCompletionHandler(); + + assert(TemplateIds.empty() && "Still alive TemplateIdAnnotations around?"); } /// Initialize - Warm up the parser. @@ -470,10 +472,30 @@ void Parser::Initialize() { } } +namespace { + /// \brief RAIIObject to destroy the contents of a SmallVector of + /// TemplateIdAnnotation pointers and clear the vector. + class DestroyTemplateIdAnnotationsRAIIObj { + SmallVectorImpl<TemplateIdAnnotation *> &Container; + public: + DestroyTemplateIdAnnotationsRAIIObj(SmallVectorImpl<TemplateIdAnnotation *> + &Container) + : Container(Container) {} + + ~DestroyTemplateIdAnnotationsRAIIObj() { + for (SmallVectorImpl<TemplateIdAnnotation *>::iterator I = + Container.begin(), E = Container.end(); + I != E; ++I) + (*I)->Destroy(); + Container.clear(); + } + }; +} + /// ParseTopLevelDecl - Parse one top-level declaration, return whatever the /// action tells us to. This returns true if the EOF was encountered. bool Parser::ParseTopLevelDecl(DeclGroupPtrTy &Result) { - DelayedCleanupPoint CleanupRAII(TopLevelDeclCleanupPool); + DestroyTemplateIdAnnotationsRAIIObj CleanupRAII(TemplateIds); // Skip over the EOF token, flagging end of previous input for incremental // processing @@ -543,7 +565,7 @@ void Parser::ParseTranslationUnit() { Parser::DeclGroupPtrTy Parser::ParseExternalDeclaration(ParsedAttributesWithRange &attrs, ParsingDeclSpec *DS) { - DelayedCleanupPoint CleanupRAII(TopLevelDeclCleanupPool); + DestroyTemplateIdAnnotationsRAIIObj CleanupRAII(TemplateIds); ParenBraceBracketBalancer BalancerRAIIObj(*this); if (PP.isCodeCompletionReached()) { @@ -1201,8 +1223,6 @@ TemplateIdAnnotation *Parser::takeTemplateIdAnnotation(const Token &tok) { assert(tok.is(tok::annot_template_id) && "Expected template-id token"); TemplateIdAnnotation * Id = static_cast<TemplateIdAnnotation *>(tok.getAnnotationValue()); - TopLevelDeclCleanupPool.delayMemberFunc< TemplateIdAnnotation, - &TemplateIdAnnotation::Destroy>(Id); return Id; } |