mirror of
https://github.com/capstone-engine/llvm-capstone.git
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53fa71476d
on array and function declarators. This is pretty far from complete, and I'll revisit it later if someone doesn't beat me to it. llvm-svn: 122535
671 lines
24 KiB
C++
671 lines
24 KiB
C++
//===--- SemaDeclSpec.cpp - Declaration Specifier Semantic Analysis -------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements semantic analysis for declaration specifiers.
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//
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//===----------------------------------------------------------------------===//
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#include "clang/Parse/ParseDiagnostic.h" // FIXME: remove this back-dependency!
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#include "clang/Sema/DeclSpec.h"
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#include "clang/Sema/ParsedTemplate.h"
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#include "clang/Lex/Preprocessor.h"
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#include "clang/Basic/LangOptions.h"
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#include "llvm/ADT/STLExtras.h"
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#include "llvm/Support/ErrorHandling.h"
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#include <cstring>
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using namespace clang;
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static DiagnosticBuilder Diag(Diagnostic &D, SourceLocation Loc,
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unsigned DiagID) {
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return D.Report(Loc, DiagID);
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}
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void UnqualifiedId::setTemplateId(TemplateIdAnnotation *TemplateId) {
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assert(TemplateId && "NULL template-id annotation?");
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Kind = IK_TemplateId;
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this->TemplateId = TemplateId;
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StartLocation = TemplateId->TemplateNameLoc;
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EndLocation = TemplateId->RAngleLoc;
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}
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void UnqualifiedId::setConstructorTemplateId(TemplateIdAnnotation *TemplateId) {
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assert(TemplateId && "NULL template-id annotation?");
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Kind = IK_ConstructorTemplateId;
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this->TemplateId = TemplateId;
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StartLocation = TemplateId->TemplateNameLoc;
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EndLocation = TemplateId->RAngleLoc;
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}
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/// DeclaratorChunk::getFunction - Return a DeclaratorChunk for a function.
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/// "TheDeclarator" is the declarator that this will be added to.
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DeclaratorChunk DeclaratorChunk::getFunction(const ParsedAttributes &attrs,
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bool hasProto, bool isVariadic,
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SourceLocation EllipsisLoc,
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ParamInfo *ArgInfo,
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unsigned NumArgs,
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unsigned TypeQuals,
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bool hasExceptionSpec,
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SourceLocation ThrowLoc,
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bool hasAnyExceptionSpec,
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ParsedType *Exceptions,
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SourceRange *ExceptionRanges,
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unsigned NumExceptions,
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SourceLocation LPLoc,
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SourceLocation RPLoc,
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Declarator &TheDeclarator,
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ParsedType TrailingReturnType) {
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DeclaratorChunk I;
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I.Kind = Function;
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I.Loc = LPLoc;
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I.EndLoc = RPLoc;
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I.Fun.AttrList = attrs.getList();
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I.Fun.hasPrototype = hasProto;
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I.Fun.isVariadic = isVariadic;
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I.Fun.EllipsisLoc = EllipsisLoc.getRawEncoding();
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I.Fun.DeleteArgInfo = false;
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I.Fun.TypeQuals = TypeQuals;
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I.Fun.NumArgs = NumArgs;
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I.Fun.ArgInfo = 0;
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I.Fun.hasExceptionSpec = hasExceptionSpec;
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I.Fun.ThrowLoc = ThrowLoc.getRawEncoding();
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I.Fun.hasAnyExceptionSpec = hasAnyExceptionSpec;
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I.Fun.NumExceptions = NumExceptions;
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I.Fun.Exceptions = 0;
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I.Fun.TrailingReturnType = TrailingReturnType.getAsOpaquePtr();
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// new[] an argument array if needed.
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if (NumArgs) {
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// If the 'InlineParams' in Declarator is unused and big enough, put our
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// parameter list there (in an effort to avoid new/delete traffic). If it
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// is already used (consider a function returning a function pointer) or too
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// small (function taking too many arguments), go to the heap.
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if (!TheDeclarator.InlineParamsUsed &&
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NumArgs <= llvm::array_lengthof(TheDeclarator.InlineParams)) {
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I.Fun.ArgInfo = TheDeclarator.InlineParams;
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I.Fun.DeleteArgInfo = false;
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TheDeclarator.InlineParamsUsed = true;
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} else {
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I.Fun.ArgInfo = new DeclaratorChunk::ParamInfo[NumArgs];
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I.Fun.DeleteArgInfo = true;
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}
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memcpy(I.Fun.ArgInfo, ArgInfo, sizeof(ArgInfo[0])*NumArgs);
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}
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// new[] an exception array if needed
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if (NumExceptions) {
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I.Fun.Exceptions = new DeclaratorChunk::TypeAndRange[NumExceptions];
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for (unsigned i = 0; i != NumExceptions; ++i) {
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I.Fun.Exceptions[i].Ty = Exceptions[i];
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I.Fun.Exceptions[i].Range = ExceptionRanges[i];
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}
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}
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return I;
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}
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/// getParsedSpecifiers - Return a bitmask of which flavors of specifiers this
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/// declaration specifier includes.
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///
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unsigned DeclSpec::getParsedSpecifiers() const {
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unsigned Res = 0;
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if (StorageClassSpec != SCS_unspecified ||
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SCS_thread_specified)
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Res |= PQ_StorageClassSpecifier;
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if (TypeQualifiers != TQ_unspecified)
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Res |= PQ_TypeQualifier;
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if (hasTypeSpecifier())
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Res |= PQ_TypeSpecifier;
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if (FS_inline_specified || FS_virtual_specified || FS_explicit_specified)
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Res |= PQ_FunctionSpecifier;
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return Res;
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}
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template <class T> static bool BadSpecifier(T TNew, T TPrev,
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const char *&PrevSpec,
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unsigned &DiagID) {
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PrevSpec = DeclSpec::getSpecifierName(TPrev);
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DiagID = (TNew == TPrev ? diag::ext_duplicate_declspec
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: diag::err_invalid_decl_spec_combination);
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return true;
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}
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const char *DeclSpec::getSpecifierName(DeclSpec::SCS S) {
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switch (S) {
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case DeclSpec::SCS_unspecified: return "unspecified";
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case DeclSpec::SCS_typedef: return "typedef";
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case DeclSpec::SCS_extern: return "extern";
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case DeclSpec::SCS_static: return "static";
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case DeclSpec::SCS_auto: return "auto";
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case DeclSpec::SCS_register: return "register";
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case DeclSpec::SCS_private_extern: return "__private_extern__";
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case DeclSpec::SCS_mutable: return "mutable";
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}
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llvm_unreachable("Unknown typespec!");
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}
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const char *DeclSpec::getSpecifierName(TSW W) {
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switch (W) {
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case TSW_unspecified: return "unspecified";
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case TSW_short: return "short";
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case TSW_long: return "long";
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case TSW_longlong: return "long long";
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}
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llvm_unreachable("Unknown typespec!");
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}
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const char *DeclSpec::getSpecifierName(TSC C) {
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switch (C) {
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case TSC_unspecified: return "unspecified";
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case TSC_imaginary: return "imaginary";
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case TSC_complex: return "complex";
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}
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llvm_unreachable("Unknown typespec!");
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}
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const char *DeclSpec::getSpecifierName(TSS S) {
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switch (S) {
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case TSS_unspecified: return "unspecified";
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case TSS_signed: return "signed";
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case TSS_unsigned: return "unsigned";
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}
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llvm_unreachable("Unknown typespec!");
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}
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const char *DeclSpec::getSpecifierName(DeclSpec::TST T) {
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switch (T) {
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case DeclSpec::TST_unspecified: return "unspecified";
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case DeclSpec::TST_void: return "void";
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case DeclSpec::TST_char: return "char";
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case DeclSpec::TST_wchar: return "wchar_t";
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case DeclSpec::TST_char16: return "char16_t";
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case DeclSpec::TST_char32: return "char32_t";
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case DeclSpec::TST_int: return "int";
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case DeclSpec::TST_float: return "float";
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case DeclSpec::TST_double: return "double";
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case DeclSpec::TST_bool: return "_Bool";
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case DeclSpec::TST_decimal32: return "_Decimal32";
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case DeclSpec::TST_decimal64: return "_Decimal64";
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case DeclSpec::TST_decimal128: return "_Decimal128";
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case DeclSpec::TST_enum: return "enum";
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case DeclSpec::TST_class: return "class";
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case DeclSpec::TST_union: return "union";
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case DeclSpec::TST_struct: return "struct";
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case DeclSpec::TST_typename: return "type-name";
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case DeclSpec::TST_typeofType:
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case DeclSpec::TST_typeofExpr: return "typeof";
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case DeclSpec::TST_auto: return "auto";
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case DeclSpec::TST_decltype: return "(decltype)";
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case DeclSpec::TST_error: return "(error)";
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}
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llvm_unreachable("Unknown typespec!");
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}
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const char *DeclSpec::getSpecifierName(TQ T) {
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switch (T) {
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case DeclSpec::TQ_unspecified: return "unspecified";
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case DeclSpec::TQ_const: return "const";
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case DeclSpec::TQ_restrict: return "restrict";
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case DeclSpec::TQ_volatile: return "volatile";
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}
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llvm_unreachable("Unknown typespec!");
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}
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bool DeclSpec::SetStorageClassSpec(SCS S, SourceLocation Loc,
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const char *&PrevSpec,
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unsigned &DiagID) {
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if (StorageClassSpec != SCS_unspecified) {
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// Changing storage class is allowed only if the previous one
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// was the 'extern' that is part of a linkage specification and
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// the new storage class is 'typedef'.
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if (!(SCS_extern_in_linkage_spec &&
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StorageClassSpec == SCS_extern &&
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S == SCS_typedef))
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return BadSpecifier(S, (SCS)StorageClassSpec, PrevSpec, DiagID);
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}
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StorageClassSpec = S;
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StorageClassSpecLoc = Loc;
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assert((unsigned)S == StorageClassSpec && "SCS constants overflow bitfield");
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return false;
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}
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bool DeclSpec::SetStorageClassSpecThread(SourceLocation Loc,
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const char *&PrevSpec,
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unsigned &DiagID) {
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if (SCS_thread_specified) {
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PrevSpec = "__thread";
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DiagID = diag::ext_duplicate_declspec;
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return true;
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}
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SCS_thread_specified = true;
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SCS_threadLoc = Loc;
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return false;
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}
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/// These methods set the specified attribute of the DeclSpec, but return true
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/// and ignore the request if invalid (e.g. "extern" then "auto" is
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/// specified).
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bool DeclSpec::SetTypeSpecWidth(TSW W, SourceLocation Loc,
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const char *&PrevSpec,
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unsigned &DiagID) {
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if (TypeSpecWidth != TSW_unspecified &&
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// Allow turning long -> long long.
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(W != TSW_longlong || TypeSpecWidth != TSW_long))
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return BadSpecifier(W, (TSW)TypeSpecWidth, PrevSpec, DiagID);
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TypeSpecWidth = W;
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TSWLoc = Loc;
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if (TypeAltiVecVector && !TypeAltiVecBool &&
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((TypeSpecWidth == TSW_long) || (TypeSpecWidth == TSW_longlong))) {
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PrevSpec = DeclSpec::getSpecifierName((TST) TypeSpecType);
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DiagID = diag::warn_vector_long_decl_spec_combination;
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return true;
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}
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return false;
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}
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bool DeclSpec::SetTypeSpecComplex(TSC C, SourceLocation Loc,
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const char *&PrevSpec,
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unsigned &DiagID) {
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if (TypeSpecComplex != TSC_unspecified)
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return BadSpecifier(C, (TSC)TypeSpecComplex, PrevSpec, DiagID);
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TypeSpecComplex = C;
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TSCLoc = Loc;
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return false;
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}
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bool DeclSpec::SetTypeSpecSign(TSS S, SourceLocation Loc,
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const char *&PrevSpec,
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unsigned &DiagID) {
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if (TypeSpecSign != TSS_unspecified)
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return BadSpecifier(S, (TSS)TypeSpecSign, PrevSpec, DiagID);
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TypeSpecSign = S;
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TSSLoc = Loc;
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return false;
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}
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bool DeclSpec::SetTypeSpecType(TST T, SourceLocation Loc,
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const char *&PrevSpec,
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unsigned &DiagID,
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ParsedType Rep) {
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assert(isTypeRep(T) && "T does not store a type");
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assert(Rep && "no type provided!");
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if (TypeSpecType != TST_unspecified) {
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PrevSpec = DeclSpec::getSpecifierName((TST) TypeSpecType);
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DiagID = diag::err_invalid_decl_spec_combination;
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return true;
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}
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TypeSpecType = T;
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TypeRep = Rep;
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TSTLoc = Loc;
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TypeSpecOwned = false;
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return false;
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}
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bool DeclSpec::SetTypeSpecType(TST T, SourceLocation Loc,
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const char *&PrevSpec,
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unsigned &DiagID,
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Expr *Rep) {
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assert(isExprRep(T) && "T does not store an expr");
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assert(Rep && "no expression provided!");
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if (TypeSpecType != TST_unspecified) {
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PrevSpec = DeclSpec::getSpecifierName((TST) TypeSpecType);
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DiagID = diag::err_invalid_decl_spec_combination;
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return true;
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}
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TypeSpecType = T;
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ExprRep = Rep;
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TSTLoc = Loc;
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TypeSpecOwned = false;
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return false;
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}
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bool DeclSpec::SetTypeSpecType(TST T, SourceLocation Loc,
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const char *&PrevSpec,
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unsigned &DiagID,
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Decl *Rep, bool Owned) {
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assert(isDeclRep(T) && "T does not store a decl");
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// Unlike the other cases, we don't assert that we actually get a decl.
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if (TypeSpecType != TST_unspecified) {
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PrevSpec = DeclSpec::getSpecifierName((TST) TypeSpecType);
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DiagID = diag::err_invalid_decl_spec_combination;
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return true;
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}
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TypeSpecType = T;
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DeclRep = Rep;
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TSTLoc = Loc;
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TypeSpecOwned = Owned;
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return false;
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}
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bool DeclSpec::SetTypeSpecType(TST T, SourceLocation Loc,
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const char *&PrevSpec,
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unsigned &DiagID) {
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assert(!isDeclRep(T) && !isTypeRep(T) && !isExprRep(T) &&
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"rep required for these type-spec kinds!");
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if (TypeSpecType != TST_unspecified) {
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PrevSpec = DeclSpec::getSpecifierName((TST) TypeSpecType);
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DiagID = diag::err_invalid_decl_spec_combination;
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return true;
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}
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if (TypeAltiVecVector && (T == TST_bool) && !TypeAltiVecBool) {
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TypeAltiVecBool = true;
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TSTLoc = Loc;
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return false;
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}
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TypeSpecType = T;
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TSTLoc = Loc;
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TypeSpecOwned = false;
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if (TypeAltiVecVector && !TypeAltiVecBool && (TypeSpecType == TST_double)) {
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PrevSpec = DeclSpec::getSpecifierName((TST) TypeSpecType);
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DiagID = diag::err_invalid_vector_decl_spec;
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return true;
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}
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return false;
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}
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bool DeclSpec::SetTypeAltiVecVector(bool isAltiVecVector, SourceLocation Loc,
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const char *&PrevSpec, unsigned &DiagID) {
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if (TypeSpecType != TST_unspecified) {
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PrevSpec = DeclSpec::getSpecifierName((TST) TypeSpecType);
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DiagID = diag::err_invalid_vector_decl_spec_combination;
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return true;
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}
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TypeAltiVecVector = isAltiVecVector;
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AltiVecLoc = Loc;
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return false;
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}
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bool DeclSpec::SetTypeAltiVecPixel(bool isAltiVecPixel, SourceLocation Loc,
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const char *&PrevSpec, unsigned &DiagID) {
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if (!TypeAltiVecVector || TypeAltiVecPixel ||
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(TypeSpecType != TST_unspecified)) {
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PrevSpec = DeclSpec::getSpecifierName((TST) TypeSpecType);
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DiagID = diag::err_invalid_pixel_decl_spec_combination;
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return true;
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}
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TypeAltiVecPixel = isAltiVecPixel;
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TSTLoc = Loc;
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return false;
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}
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bool DeclSpec::SetTypeSpecError() {
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TypeSpecType = TST_error;
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TypeSpecOwned = false;
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TSTLoc = SourceLocation();
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return false;
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}
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bool DeclSpec::SetTypeQual(TQ T, SourceLocation Loc, const char *&PrevSpec,
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unsigned &DiagID, const LangOptions &Lang) {
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// Duplicates turn into warnings pre-C99.
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if ((TypeQualifiers & T) && !Lang.C99)
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return BadSpecifier(T, T, PrevSpec, DiagID);
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TypeQualifiers |= T;
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switch (T) {
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default: assert(0 && "Unknown type qualifier!");
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case TQ_const: TQ_constLoc = Loc; break;
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case TQ_restrict: TQ_restrictLoc = Loc; break;
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case TQ_volatile: TQ_volatileLoc = Loc; break;
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}
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return false;
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}
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bool DeclSpec::SetFunctionSpecInline(SourceLocation Loc, const char *&PrevSpec,
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unsigned &DiagID) {
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// 'inline inline' is ok.
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FS_inline_specified = true;
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FS_inlineLoc = Loc;
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return false;
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}
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bool DeclSpec::SetFunctionSpecVirtual(SourceLocation Loc, const char *&PrevSpec,
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unsigned &DiagID) {
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// 'virtual virtual' is ok.
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FS_virtual_specified = true;
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FS_virtualLoc = Loc;
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return false;
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}
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bool DeclSpec::SetFunctionSpecExplicit(SourceLocation Loc, const char *&PrevSpec,
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unsigned &DiagID) {
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// 'explicit explicit' is ok.
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FS_explicit_specified = true;
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FS_explicitLoc = Loc;
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return false;
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}
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bool DeclSpec::SetFriendSpec(SourceLocation Loc, const char *&PrevSpec,
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unsigned &DiagID) {
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if (Friend_specified) {
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PrevSpec = "friend";
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DiagID = diag::ext_duplicate_declspec;
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return true;
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}
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Friend_specified = true;
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FriendLoc = Loc;
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return false;
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}
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bool DeclSpec::SetConstexprSpec(SourceLocation Loc, const char *&PrevSpec,
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unsigned &DiagID) {
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// 'constexpr constexpr' is ok.
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Constexpr_specified = true;
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ConstexprLoc = Loc;
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return false;
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}
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void DeclSpec::setProtocolQualifiers(Decl * const *Protos,
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unsigned NP,
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SourceLocation *ProtoLocs,
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SourceLocation LAngleLoc) {
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if (NP == 0) return;
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ProtocolQualifiers = new Decl*[NP];
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ProtocolLocs = new SourceLocation[NP];
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memcpy((void*)ProtocolQualifiers, Protos, sizeof(Decl*)*NP);
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memcpy(ProtocolLocs, ProtoLocs, sizeof(SourceLocation)*NP);
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NumProtocolQualifiers = NP;
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ProtocolLAngleLoc = LAngleLoc;
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}
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void DeclSpec::SaveWrittenBuiltinSpecs() {
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writtenBS.Sign = getTypeSpecSign();
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writtenBS.Width = getTypeSpecWidth();
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writtenBS.Type = getTypeSpecType();
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// Search the list of attributes for the presence of a mode attribute.
|
|
writtenBS.ModeAttr = false;
|
|
AttributeList* attrs = getAttributes().getList();
|
|
while (attrs) {
|
|
if (attrs->getKind() == AttributeList::AT_mode) {
|
|
writtenBS.ModeAttr = true;
|
|
break;
|
|
}
|
|
attrs = attrs->getNext();
|
|
}
|
|
}
|
|
|
|
void DeclSpec::SaveStorageSpecifierAsWritten() {
|
|
if (SCS_extern_in_linkage_spec && StorageClassSpec == SCS_extern)
|
|
// If 'extern' is part of a linkage specification,
|
|
// then it is not a storage class "as written".
|
|
StorageClassSpecAsWritten = SCS_unspecified;
|
|
else
|
|
StorageClassSpecAsWritten = StorageClassSpec;
|
|
}
|
|
|
|
/// Finish - This does final analysis of the declspec, rejecting things like
|
|
/// "_Imaginary" (lacking an FP type). This returns a diagnostic to issue or
|
|
/// diag::NUM_DIAGNOSTICS if there is no error. After calling this method,
|
|
/// DeclSpec is guaranteed self-consistent, even if an error occurred.
|
|
void DeclSpec::Finish(Diagnostic &D, Preprocessor &PP) {
|
|
// Before possibly changing their values, save specs as written.
|
|
SaveWrittenBuiltinSpecs();
|
|
SaveStorageSpecifierAsWritten();
|
|
|
|
// Check the type specifier components first.
|
|
|
|
// Validate and finalize AltiVec vector declspec.
|
|
if (TypeAltiVecVector) {
|
|
if (TypeAltiVecBool) {
|
|
// Sign specifiers are not allowed with vector bool. (PIM 2.1)
|
|
if (TypeSpecSign != TSS_unspecified) {
|
|
Diag(D, TSSLoc, diag::err_invalid_vector_bool_decl_spec)
|
|
<< getSpecifierName((TSS)TypeSpecSign);
|
|
}
|
|
|
|
// Only char/int are valid with vector bool. (PIM 2.1)
|
|
if (((TypeSpecType != TST_unspecified) && (TypeSpecType != TST_char) &&
|
|
(TypeSpecType != TST_int)) || TypeAltiVecPixel) {
|
|
Diag(D, TSTLoc, diag::err_invalid_vector_bool_decl_spec)
|
|
<< (TypeAltiVecPixel ? "__pixel" :
|
|
getSpecifierName((TST)TypeSpecType));
|
|
}
|
|
|
|
// Only 'short' is valid with vector bool. (PIM 2.1)
|
|
if ((TypeSpecWidth != TSW_unspecified) && (TypeSpecWidth != TSW_short))
|
|
Diag(D, TSWLoc, diag::err_invalid_vector_bool_decl_spec)
|
|
<< getSpecifierName((TSW)TypeSpecWidth);
|
|
|
|
// Elements of vector bool are interpreted as unsigned. (PIM 2.1)
|
|
if ((TypeSpecType == TST_char) || (TypeSpecType == TST_int) ||
|
|
(TypeSpecWidth != TSW_unspecified))
|
|
TypeSpecSign = TSS_unsigned;
|
|
}
|
|
|
|
if (TypeAltiVecPixel) {
|
|
//TODO: perform validation
|
|
TypeSpecType = TST_int;
|
|
TypeSpecSign = TSS_unsigned;
|
|
TypeSpecWidth = TSW_short;
|
|
TypeSpecOwned = false;
|
|
}
|
|
}
|
|
|
|
// signed/unsigned are only valid with int/char/wchar_t.
|
|
if (TypeSpecSign != TSS_unspecified) {
|
|
if (TypeSpecType == TST_unspecified)
|
|
TypeSpecType = TST_int; // unsigned -> unsigned int, signed -> signed int.
|
|
else if (TypeSpecType != TST_int &&
|
|
TypeSpecType != TST_char && TypeSpecType != TST_wchar) {
|
|
Diag(D, TSSLoc, diag::err_invalid_sign_spec)
|
|
<< getSpecifierName((TST)TypeSpecType);
|
|
// signed double -> double.
|
|
TypeSpecSign = TSS_unspecified;
|
|
}
|
|
}
|
|
|
|
// Validate the width of the type.
|
|
switch (TypeSpecWidth) {
|
|
case TSW_unspecified: break;
|
|
case TSW_short: // short int
|
|
case TSW_longlong: // long long int
|
|
if (TypeSpecType == TST_unspecified)
|
|
TypeSpecType = TST_int; // short -> short int, long long -> long long int.
|
|
else if (TypeSpecType != TST_int) {
|
|
Diag(D, TSWLoc,
|
|
TypeSpecWidth == TSW_short ? diag::err_invalid_short_spec
|
|
: diag::err_invalid_longlong_spec)
|
|
<< getSpecifierName((TST)TypeSpecType);
|
|
TypeSpecType = TST_int;
|
|
TypeSpecOwned = false;
|
|
}
|
|
break;
|
|
case TSW_long: // long double, long int
|
|
if (TypeSpecType == TST_unspecified)
|
|
TypeSpecType = TST_int; // long -> long int.
|
|
else if (TypeSpecType != TST_int && TypeSpecType != TST_double) {
|
|
Diag(D, TSWLoc, diag::err_invalid_long_spec)
|
|
<< getSpecifierName((TST)TypeSpecType);
|
|
TypeSpecType = TST_int;
|
|
TypeSpecOwned = false;
|
|
}
|
|
break;
|
|
}
|
|
|
|
// TODO: if the implementation does not implement _Complex or _Imaginary,
|
|
// disallow their use. Need information about the backend.
|
|
if (TypeSpecComplex != TSC_unspecified) {
|
|
if (TypeSpecType == TST_unspecified) {
|
|
Diag(D, TSCLoc, diag::ext_plain_complex)
|
|
<< FixItHint::CreateInsertion(
|
|
PP.getLocForEndOfToken(getTypeSpecComplexLoc()),
|
|
" double");
|
|
TypeSpecType = TST_double; // _Complex -> _Complex double.
|
|
} else if (TypeSpecType == TST_int || TypeSpecType == TST_char) {
|
|
// Note that this intentionally doesn't include _Complex _Bool.
|
|
Diag(D, TSTLoc, diag::ext_integer_complex);
|
|
} else if (TypeSpecType != TST_float && TypeSpecType != TST_double) {
|
|
Diag(D, TSCLoc, diag::err_invalid_complex_spec)
|
|
<< getSpecifierName((TST)TypeSpecType);
|
|
TypeSpecComplex = TSC_unspecified;
|
|
}
|
|
}
|
|
|
|
// C++ [class.friend]p6:
|
|
// No storage-class-specifier shall appear in the decl-specifier-seq
|
|
// of a friend declaration.
|
|
if (isFriendSpecified() && getStorageClassSpec()) {
|
|
DeclSpec::SCS SC = getStorageClassSpec();
|
|
const char *SpecName = getSpecifierName(SC);
|
|
|
|
SourceLocation SCLoc = getStorageClassSpecLoc();
|
|
SourceLocation SCEndLoc = SCLoc.getFileLocWithOffset(strlen(SpecName));
|
|
|
|
Diag(D, SCLoc, diag::err_friend_storage_spec)
|
|
<< SpecName
|
|
<< FixItHint::CreateRemoval(SourceRange(SCLoc, SCEndLoc));
|
|
|
|
ClearStorageClassSpecs();
|
|
}
|
|
|
|
assert(!TypeSpecOwned || isDeclRep((TST) TypeSpecType));
|
|
|
|
// Okay, now we can infer the real type.
|
|
|
|
// TODO: return "auto function" and other bad things based on the real type.
|
|
|
|
// 'data definition has no type or storage class'?
|
|
}
|
|
|
|
bool DeclSpec::isMissingDeclaratorOk() {
|
|
TST tst = getTypeSpecType();
|
|
return isDeclRep(tst) && getRepAsDecl() != 0 &&
|
|
StorageClassSpec != DeclSpec::SCS_typedef;
|
|
}
|
|
|
|
void UnqualifiedId::clear() {
|
|
if (Kind == IK_TemplateId)
|
|
TemplateId->Destroy();
|
|
|
|
Kind = IK_Identifier;
|
|
Identifier = 0;
|
|
StartLocation = SourceLocation();
|
|
EndLocation = SourceLocation();
|
|
}
|
|
|
|
void UnqualifiedId::setOperatorFunctionId(SourceLocation OperatorLoc,
|
|
OverloadedOperatorKind Op,
|
|
SourceLocation SymbolLocations[3]) {
|
|
Kind = IK_OperatorFunctionId;
|
|
StartLocation = OperatorLoc;
|
|
EndLocation = OperatorLoc;
|
|
OperatorFunctionId.Operator = Op;
|
|
for (unsigned I = 0; I != 3; ++I) {
|
|
OperatorFunctionId.SymbolLocations[I] = SymbolLocations[I].getRawEncoding();
|
|
|
|
if (SymbolLocations[I].isValid())
|
|
EndLocation = SymbolLocations[I];
|
|
}
|
|
}
|