forked from OSchip/llvm-project
Extract code dealing with variable declarator into a separate function.
No functionality change. llvm-svn: 62300
This commit is contained in:
Zhongxing Xu
parent
d243c0e3d9
commit
9b7714d909
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@ -277,9 +277,12 @@ public:
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}
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DeclTy *ActOnDeclarator(Scope *S, Declarator &D, DeclTy *LastInGroup,
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bool IsFunctionDefinition);
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ScopedDecl* ActOnVariableDeclarator(Scope* S, Declarator& D, DeclContext* DC,
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QualType R, ScopedDecl* LastDeclarator,
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Decl* PrevDecl, bool& InvalidDecl);
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ScopedDecl* ActOnFunctionDeclarator(Scope* S, Declarator& D, DeclContext* DC,
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QualType R, ScopedDecl *LastDeclarator,
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Decl* PreDecl, bool IsFunctionDefinition,
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Decl* PrevDecl, bool IsFunctionDefinition,
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bool& InvalidDecl);
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virtual DeclTy *ActOnParamDeclarator(Scope *S, Declarator &D);
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virtual void ActOnParamDefaultArgument(DeclTy *param,
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@ -1328,105 +1328,8 @@ Sema::ActOnDeclarator(Scope *S, Declarator &D, DeclTy *lastDecl,
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New = ActOnFunctionDeclarator(S, D, DC, R, LastDeclarator, PrevDecl,
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IsFunctionDefinition, InvalidDecl);
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} else {
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// Check that there are no default arguments (C++ only).
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if (getLangOptions().CPlusPlus)
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CheckExtraCXXDefaultArguments(D);
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if (R.getTypePtr()->isObjCInterfaceType()) {
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Diag(D.getIdentifierLoc(), diag::err_statically_allocated_object)
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<< D.getIdentifier();
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InvalidDecl = true;
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}
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VarDecl *NewVD;
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VarDecl::StorageClass SC;
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switch (D.getDeclSpec().getStorageClassSpec()) {
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default: assert(0 && "Unknown storage class!");
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case DeclSpec::SCS_unspecified: SC = VarDecl::None; break;
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case DeclSpec::SCS_extern: SC = VarDecl::Extern; break;
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case DeclSpec::SCS_static: SC = VarDecl::Static; break;
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case DeclSpec::SCS_auto: SC = VarDecl::Auto; break;
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case DeclSpec::SCS_register: SC = VarDecl::Register; break;
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case DeclSpec::SCS_private_extern: SC = VarDecl::PrivateExtern; break;
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case DeclSpec::SCS_mutable:
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// mutable can only appear on non-static class members, so it's always
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// an error here
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Diag(D.getIdentifierLoc(), diag::err_mutable_nonmember);
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InvalidDecl = true;
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SC = VarDecl::None;
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break;
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}
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IdentifierInfo *II = Name.getAsIdentifierInfo();
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if (!II) {
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Diag(D.getIdentifierLoc(), diag::err_bad_variable_name)
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<< Name.getAsString();
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return 0;
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}
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if (DC->isRecord()) {
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// This is a static data member for a C++ class.
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NewVD = CXXClassVarDecl::Create(Context, cast<CXXRecordDecl>(DC),
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D.getIdentifierLoc(), II,
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R, LastDeclarator);
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} else {
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bool ThreadSpecified = D.getDeclSpec().isThreadSpecified();
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if (S->getFnParent() == 0) {
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// C99 6.9p2: The storage-class specifiers auto and register shall not
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// appear in the declaration specifiers in an external declaration.
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if (SC == VarDecl::Auto || SC == VarDecl::Register) {
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Diag(D.getIdentifierLoc(), diag::err_typecheck_sclass_fscope);
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InvalidDecl = true;
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}
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}
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NewVD = VarDecl::Create(Context, DC, D.getIdentifierLoc(),
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II, R, SC, LastDeclarator,
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// FIXME: Move to DeclGroup...
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D.getDeclSpec().getSourceRange().getBegin());
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NewVD->setThreadSpecified(ThreadSpecified);
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}
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// Handle attributes prior to checking for duplicates in MergeVarDecl
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ProcessDeclAttributes(NewVD, D);
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// Handle GNU asm-label extension (encoded as an attribute).
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if (Expr *E = (Expr*) D.getAsmLabel()) {
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// The parser guarantees this is a string.
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StringLiteral *SE = cast<StringLiteral>(E);
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NewVD->addAttr(new AsmLabelAttr(std::string(SE->getStrData(),
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SE->getByteLength())));
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}
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// Emit an error if an address space was applied to decl with local storage.
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// This includes arrays of objects with address space qualifiers, but not
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// automatic variables that point to other address spaces.
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// ISO/IEC TR 18037 S5.1.2
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if (NewVD->hasLocalStorage() && (NewVD->getType().getAddressSpace() != 0)) {
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Diag(D.getIdentifierLoc(), diag::err_as_qualified_auto_decl);
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InvalidDecl = true;
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}
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// Merge the decl with the existing one if appropriate. If the decl is
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// in an outer scope, it isn't the same thing.
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if (PrevDecl && isDeclInScope(PrevDecl, DC, S)) {
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if (isa<FieldDecl>(PrevDecl) && D.getCXXScopeSpec().isSet()) {
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// The user tried to define a non-static data member
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// out-of-line (C++ [dcl.meaning]p1).
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Diag(NewVD->getLocation(), diag::err_nonstatic_member_out_of_line)
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<< D.getCXXScopeSpec().getRange();
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NewVD->Destroy(Context);
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return 0;
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}
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NewVD = MergeVarDecl(NewVD, PrevDecl);
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if (NewVD == 0) return 0;
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if (D.getCXXScopeSpec().isSet()) {
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// No previous declaration in the qualifying scope.
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Diag(D.getIdentifierLoc(), diag::err_typecheck_no_member)
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<< Name << D.getCXXScopeSpec().getRange();
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InvalidDecl = true;
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}
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}
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New = NewVD;
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New = ActOnVariableDeclarator(S, D, DC, R, LastDeclarator, PrevDecl,
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InvalidDecl);
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}
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if (New == 0)
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@ -1446,6 +1349,113 @@ Sema::ActOnDeclarator(Scope *S, Declarator &D, DeclTy *lastDecl,
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return New;
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}
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ScopedDecl*
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Sema::ActOnVariableDeclarator(Scope* S, Declarator& D, DeclContext* DC,
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QualType R, ScopedDecl* LastDeclarator,
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Decl* PrevDecl, bool& InvalidDecl) {
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DeclarationName Name = GetNameForDeclarator(D);
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// Check that there are no default arguments (C++ only).
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if (getLangOptions().CPlusPlus)
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CheckExtraCXXDefaultArguments(D);
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if (R.getTypePtr()->isObjCInterfaceType()) {
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Diag(D.getIdentifierLoc(), diag::err_statically_allocated_object)
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<< D.getIdentifier();
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InvalidDecl = true;
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}
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VarDecl *NewVD;
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VarDecl::StorageClass SC;
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switch (D.getDeclSpec().getStorageClassSpec()) {
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default: assert(0 && "Unknown storage class!");
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case DeclSpec::SCS_unspecified: SC = VarDecl::None; break;
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case DeclSpec::SCS_extern: SC = VarDecl::Extern; break;
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case DeclSpec::SCS_static: SC = VarDecl::Static; break;
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case DeclSpec::SCS_auto: SC = VarDecl::Auto; break;
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case DeclSpec::SCS_register: SC = VarDecl::Register; break;
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case DeclSpec::SCS_private_extern: SC = VarDecl::PrivateExtern; break;
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case DeclSpec::SCS_mutable:
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// mutable can only appear on non-static class members, so it's always
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// an error here
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Diag(D.getIdentifierLoc(), diag::err_mutable_nonmember);
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InvalidDecl = true;
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SC = VarDecl::None;
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break;
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}
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IdentifierInfo *II = Name.getAsIdentifierInfo();
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if (!II) {
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Diag(D.getIdentifierLoc(), diag::err_bad_variable_name)
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<< Name.getAsString();
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return 0;
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}
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if (DC->isRecord()) {
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// This is a static data member for a C++ class.
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NewVD = CXXClassVarDecl::Create(Context, cast<CXXRecordDecl>(DC),
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D.getIdentifierLoc(), II,
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R, LastDeclarator);
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} else {
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bool ThreadSpecified = D.getDeclSpec().isThreadSpecified();
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if (S->getFnParent() == 0) {
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// C99 6.9p2: The storage-class specifiers auto and register shall not
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// appear in the declaration specifiers in an external declaration.
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if (SC == VarDecl::Auto || SC == VarDecl::Register) {
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Diag(D.getIdentifierLoc(), diag::err_typecheck_sclass_fscope);
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InvalidDecl = true;
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}
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}
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NewVD = VarDecl::Create(Context, DC, D.getIdentifierLoc(),
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II, R, SC, LastDeclarator,
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// FIXME: Move to DeclGroup...
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D.getDeclSpec().getSourceRange().getBegin());
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NewVD->setThreadSpecified(ThreadSpecified);
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}
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// Handle attributes prior to checking for duplicates in MergeVarDecl
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ProcessDeclAttributes(NewVD, D);
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// Handle GNU asm-label extension (encoded as an attribute).
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if (Expr *E = (Expr*) D.getAsmLabel()) {
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// The parser guarantees this is a string.
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StringLiteral *SE = cast<StringLiteral>(E);
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NewVD->addAttr(new AsmLabelAttr(std::string(SE->getStrData(),
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SE->getByteLength())));
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}
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// Emit an error if an address space was applied to decl with local storage.
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// This includes arrays of objects with address space qualifiers, but not
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// automatic variables that point to other address spaces.
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// ISO/IEC TR 18037 S5.1.2
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if (NewVD->hasLocalStorage() && (NewVD->getType().getAddressSpace() != 0)) {
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Diag(D.getIdentifierLoc(), diag::err_as_qualified_auto_decl);
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InvalidDecl = true;
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}
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// Merge the decl with the existing one if appropriate. If the decl is
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// in an outer scope, it isn't the same thing.
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if (PrevDecl && isDeclInScope(PrevDecl, DC, S)) {
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if (isa<FieldDecl>(PrevDecl) && D.getCXXScopeSpec().isSet()) {
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// The user tried to define a non-static data member
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// out-of-line (C++ [dcl.meaning]p1).
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Diag(NewVD->getLocation(), diag::err_nonstatic_member_out_of_line)
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<< D.getCXXScopeSpec().getRange();
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NewVD->Destroy(Context);
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return 0;
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}
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NewVD = MergeVarDecl(NewVD, PrevDecl);
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if (NewVD == 0) return 0;
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if (D.getCXXScopeSpec().isSet()) {
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// No previous declaration in the qualifying scope.
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Diag(D.getIdentifierLoc(), diag::err_typecheck_no_member)
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<< Name << D.getCXXScopeSpec().getRange();
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InvalidDecl = true;
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}
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}
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return NewVD;
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}
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ScopedDecl*
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Sema::ActOnFunctionDeclarator(Scope* S, Declarator& D, DeclContext* DC,
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QualType R, ScopedDecl *LastDeclarator,
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