#include "clang/Parse/Parser.h"
#include "RAIIObjectsForParser.h"
#include "clang/AST/ASTContext.h"
#include "clang/AST/DeclTemplate.h"
#include "clang/Basic/AddressSpaces.h"
#include "clang/Basic/Attributes.h"
#include "clang/Basic/CharInfo.h"
#include "clang/Basic/TargetInfo.h"
#include "clang/Parse/ParseDiagnostic.h"
#include "clang/Sema/Lookup.h"
#include "clang/Sema/ParsedTemplate.h"
#include "clang/Sema/PrettyDeclStackTrace.h"
#include "clang/Sema/Scope.h"
#include "clang/Sema/SemaDiagnostic.h"
#include "llvm/ADT/SmallSet.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/StringSwitch.h"
using namespace clang;
TypeResult Parser::ParseTypeName(SourceRange *Range,
Declarator::TheContext Context,
AccessSpecifier AS,
Decl **OwnedType,
ParsedAttributes *Attrs) {
DeclSpecContext DSC = getDeclSpecContextFromDeclaratorContext(Context);
if (DSC == DSC_normal)
DSC = DSC_type_specifier;
DeclSpec DS(AttrFactory);
if (Attrs)
DS.addAttributes(Attrs->getList());
ParseSpecifierQualifierList(DS, AS, DSC);
if (OwnedType)
*OwnedType = DS.isTypeSpecOwned() ? DS.getRepAsDecl() : nullptr;
Declarator DeclaratorInfo(DS, Context);
ParseDeclarator(DeclaratorInfo);
if (Range)
*Range = DeclaratorInfo.getSourceRange();
if (DeclaratorInfo.isInvalidType())
return true;
return Actions.ActOnTypeName(getCurScope(), DeclaratorInfo);
}
static bool isAttributeLateParsed(const IdentifierInfo &II) {
#define CLANG_ATTR_LATE_PARSED_LIST
return llvm::StringSwitch<bool>(II.getName())
#include "clang/Parse/AttrParserStringSwitches.inc"
.Default(false);
#undef CLANG_ATTR_LATE_PARSED_LIST
}
void Parser::ParseGNUAttributes(ParsedAttributes &attrs,
SourceLocation *endLoc,
LateParsedAttrList *LateAttrs,
Declarator *D) {
assert(Tok.is(tok::kw___attribute) && "Not a GNU attribute list!");
while (Tok.is(tok::kw___attribute)) {
ConsumeToken();
if (ExpectAndConsume(tok::l_paren, diag::err_expected_lparen_after,
"attribute")) {
SkipUntil(tok::r_paren, StopAtSemi); return;
}
if (ExpectAndConsume(tok::l_paren, diag::err_expected_lparen_after, "(")) {
SkipUntil(tok::r_paren, StopAtSemi); return;
}
while (true) {
if (TryConsumeToken(tok::comma))
continue;
if (Tok.isAnnotation())
break;
IdentifierInfo *AttrName = Tok.getIdentifierInfo();
if (!AttrName)
break;
SourceLocation AttrNameLoc = ConsumeToken();
if (Tok.isNot(tok::l_paren)) {
attrs.addNew(AttrName, AttrNameLoc, nullptr, AttrNameLoc, nullptr, 0,
AttributeList::AS_GNU);
continue;
}
if (!LateAttrs || !isAttributeLateParsed(*AttrName)) {
ParseGNUAttributeArgs(AttrName, AttrNameLoc, attrs, endLoc, nullptr,
SourceLocation(), AttributeList::AS_GNU, D);
continue;
}
LateParsedAttribute *LA =
new LateParsedAttribute(this, *AttrName, AttrNameLoc);
LateAttrs->push_back(LA);
if (!ClassStack.empty() && !LateAttrs->parseSoon())
getCurrentClass().LateParsedDeclarations.push_back(LA);
ConsumeAndStoreUntil(tok::r_paren, LA->Toks, true, false);
Token Eof;
Eof.startToken();
Eof.setLocation(Tok.getLocation());
LA->Toks.push_back(Eof);
}
if (ExpectAndConsume(tok::r_paren))
SkipUntil(tok::r_paren, StopAtSemi);
SourceLocation Loc = Tok.getLocation();
if (ExpectAndConsume(tok::r_paren))
SkipUntil(tok::r_paren, StopAtSemi);
if (endLoc)
*endLoc = Loc;
}
}
static StringRef normalizeAttrName(StringRef Name) {
if (Name.size() >= 4 && Name.startswith("__") && Name.endswith("__"))
Name = Name.drop_front(2).drop_back(2);
return Name;
}
static bool attributeHasIdentifierArg(const IdentifierInfo &II) {
#define CLANG_ATTR_IDENTIFIER_ARG_LIST
return llvm::StringSwitch<bool>(normalizeAttrName(II.getName()))
#include "clang/Parse/AttrParserStringSwitches.inc"
.Default(false);
#undef CLANG_ATTR_IDENTIFIER_ARG_LIST
}
static bool attributeIsTypeArgAttr(const IdentifierInfo &II) {
#define CLANG_ATTR_TYPE_ARG_LIST
return llvm::StringSwitch<bool>(normalizeAttrName(II.getName()))
#include "clang/Parse/AttrParserStringSwitches.inc"
.Default(false);
#undef CLANG_ATTR_TYPE_ARG_LIST
}
static bool attributeParsedArgsUnevaluated(const IdentifierInfo &II) {
#define CLANG_ATTR_ARG_CONTEXT_LIST
return llvm::StringSwitch<bool>(normalizeAttrName(II.getName()))
#include "clang/Parse/AttrParserStringSwitches.inc"
.Default(false);
#undef CLANG_ATTR_ARG_CONTEXT_LIST
}
IdentifierLoc *Parser::ParseIdentifierLoc() {
assert(Tok.is(tok::identifier) && "expected an identifier");
IdentifierLoc *IL = IdentifierLoc::create(Actions.Context,
Tok.getLocation(),
Tok.getIdentifierInfo());
ConsumeToken();
return IL;
}
void Parser::ParseSwiftNewtypeAttribute(
IdentifierInfo &SwiftNewtype, SourceLocation SwiftNewtypeLoc,
ParsedAttributes &attrs, SourceLocation *endLoc, IdentifierInfo *ScopeName,
SourceLocation ScopeLoc, AttributeList::Syntax Syntax) {
BalancedDelimiterTracker Parens(*this, tok::l_paren);
Parens.consumeOpen();
if (Tok.is(tok::r_paren)) {
Diag(Tok.getLocation(), diag::err_argument_required_after_attribute);
Parens.consumeClose();
return;
}
if (Tok.isNot(tok::kw_struct) && Tok.isNot(tok::kw_enum)) {
Diag(Tok.getLocation(), diag::warn_attribute_type_not_supported)
<< &SwiftNewtype << Tok.getIdentifierInfo();
if (!isTokenSpecial())
ConsumeToken();
Parens.consumeClose();
return;
}
auto IL = IdentifierLoc::create(Actions.Context, Tok.getLocation(),
Tok.getIdentifierInfo());
ConsumeToken();
auto identLoc = ArgsUnion(IL);
attrs.addNew(&SwiftNewtype,
SourceRange(SwiftNewtypeLoc, Parens.getCloseLocation()),
ScopeName, ScopeLoc, &identLoc, 1, Syntax);
Parens.consumeClose();
}
void Parser::ParseAttributeWithTypeArg(IdentifierInfo &AttrName,
SourceLocation AttrNameLoc,
ParsedAttributes &Attrs,
SourceLocation *EndLoc,
IdentifierInfo *ScopeName,
SourceLocation ScopeLoc,
AttributeList::Syntax Syntax) {
BalancedDelimiterTracker Parens(*this, tok::l_paren);
Parens.consumeOpen();
TypeResult T;
if (Tok.isNot(tok::r_paren))
T = ParseTypeName();
if (Parens.consumeClose())
return;
if (T.isInvalid())
return;
if (T.isUsable())
Attrs.addNewTypeAttr(&AttrName,
SourceRange(AttrNameLoc, Parens.getCloseLocation()),
ScopeName, ScopeLoc, T.get(), Syntax);
else
Attrs.addNew(&AttrName, SourceRange(AttrNameLoc, Parens.getCloseLocation()),
ScopeName, ScopeLoc, nullptr, 0, Syntax);
}
unsigned Parser::ParseAttributeArgsCommon(
IdentifierInfo *AttrName, SourceLocation AttrNameLoc,
ParsedAttributes &Attrs, SourceLocation *EndLoc, IdentifierInfo *ScopeName,
SourceLocation ScopeLoc, AttributeList::Syntax Syntax) {
ConsumeParen();
ArgsVector ArgExprs;
if (Tok.is(tok::identifier)) {
bool IsIdentifierArg = attributeHasIdentifierArg(*AttrName);
AttributeList::Kind AttrKind =
AttributeList::getKind(AttrName, ScopeName, Syntax);
if (AttrKind == AttributeList::UnknownAttribute ||
AttrKind == AttributeList::IgnoredAttribute) {
const Token &Next = NextToken();
IsIdentifierArg = Next.isOneOf(tok::r_paren, tok::comma);
}
if (IsIdentifierArg)
ArgExprs.push_back(ParseIdentifierLoc());
}
if (!ArgExprs.empty() ? Tok.is(tok::comma) : Tok.isNot(tok::r_paren)) {
if (!ArgExprs.empty())
ConsumeToken();
do {
std::unique_ptr<EnterExpressionEvaluationContext> Unevaluated;
if (attributeParsedArgsUnevaluated(*AttrName))
Unevaluated.reset(
new EnterExpressionEvaluationContext(Actions, Sema::Unevaluated));
ExprResult ArgExpr(
Actions.CorrectDelayedTyposInExpr(ParseAssignmentExpression()));
if (ArgExpr.isInvalid()) {
SkipUntil(tok::r_paren, StopAtSemi);
return 0;
}
ArgExprs.push_back(ArgExpr.get());
} while (TryConsumeToken(tok::comma));
}
SourceLocation RParen = Tok.getLocation();
if (!ExpectAndConsume(tok::r_paren)) {
SourceLocation AttrLoc = ScopeLoc.isValid() ? ScopeLoc : AttrNameLoc;
Attrs.addNew(AttrName, SourceRange(AttrLoc, RParen), ScopeName, ScopeLoc,
ArgExprs.data(), ArgExprs.size(), Syntax);
}
if (EndLoc)
*EndLoc = RParen;
return static_cast<unsigned>(ArgExprs.size());
}
void Parser::ParseGNUAttributeArgs(IdentifierInfo *AttrName,
SourceLocation AttrNameLoc,
ParsedAttributes &Attrs,
SourceLocation *EndLoc,
IdentifierInfo *ScopeName,
SourceLocation ScopeLoc,
AttributeList::Syntax Syntax,
Declarator *D) {
assert(Tok.is(tok::l_paren) && "Attribute arg list not starting with '('");
AttributeList::Kind AttrKind =
AttributeList::getKind(AttrName, ScopeName, Syntax);
if (AttrKind == AttributeList::AT_Availability) {
ParseAvailabilityAttribute(*AttrName, AttrNameLoc, Attrs, EndLoc, ScopeName,
ScopeLoc, Syntax);
return;
} else if (AttrKind == AttributeList::AT_ObjCBridgeRelated) {
ParseObjCBridgeRelatedAttribute(*AttrName, AttrNameLoc, Attrs, EndLoc,
ScopeName, ScopeLoc, Syntax);
return;
} else if (AttrKind == AttributeList::AT_TypeTagForDatatype) {
ParseTypeTagForDatatypeAttribute(*AttrName, AttrNameLoc, Attrs, EndLoc,
ScopeName, ScopeLoc, Syntax);
return;
} else if (AttrKind == AttributeList::AT_SwiftNewtype) {
ParseSwiftNewtypeAttribute(*AttrName, AttrNameLoc, Attrs, EndLoc,
ScopeName, ScopeLoc, Syntax);
return;
} else if (attributeIsTypeArgAttr(*AttrName)) {
ParseAttributeWithTypeArg(*AttrName, AttrNameLoc, Attrs, EndLoc, ScopeName,
ScopeLoc, Syntax);
return;
}
std::unique_ptr<ParseScope> PrototypeScope;
if (normalizeAttrName(AttrName->getName()) == "enable_if" &&
D && D->isFunctionDeclarator()) {
DeclaratorChunk::FunctionTypeInfo FTI = D->getFunctionTypeInfo();
PrototypeScope.reset(new ParseScope(this, Scope::FunctionPrototypeScope |
Scope::FunctionDeclarationScope |
Scope::DeclScope));
for (unsigned i = 0; i != FTI.NumParams; ++i) {
ParmVarDecl *Param = cast<ParmVarDecl>(FTI.Params[i].Param);
Actions.ActOnReenterCXXMethodParameter(getCurScope(), Param);
}
}
ParseAttributeArgsCommon(AttrName, AttrNameLoc, Attrs, EndLoc, ScopeName,
ScopeLoc, Syntax);
}
bool Parser::ParseMicrosoftDeclSpecArgs(IdentifierInfo *AttrName,
SourceLocation AttrNameLoc,
ParsedAttributes &Attrs) {
if (!hasAttribute(AttrSyntax::Declspec, nullptr, AttrName,
getTargetInfo(), getLangOpts())) {
ConsumeParen();
SkipUntil(tok::r_paren);
return false;
}
SourceLocation OpenParenLoc = Tok.getLocation();
if (AttrName->getName() == "property") {
BalancedDelimiterTracker T(*this, tok::l_paren);
T.expectAndConsume(diag::err_expected_lparen_after,
AttrName->getNameStart(), tok::r_paren);
enum AccessorKind {
AK_Invalid = -1,
AK_Put = 0,
AK_Get = 1 };
IdentifierInfo *AccessorNames[] = {nullptr, nullptr};
bool HasInvalidAccessor = false;
while (true) {
if (!Tok.is(tok::identifier)) {
if (Tok.is(tok::r_paren) && !HasInvalidAccessor &&
AccessorNames[AK_Put] == nullptr &&
AccessorNames[AK_Get] == nullptr) {
Diag(AttrNameLoc, diag::err_ms_property_no_getter_or_putter);
break;
}
Diag(Tok.getLocation(), diag::err_ms_property_unknown_accessor);
break;
}
AccessorKind Kind;
SourceLocation KindLoc = Tok.getLocation();
StringRef KindStr = Tok.getIdentifierInfo()->getName();
if (KindStr == "get") {
Kind = AK_Get;
} else if (KindStr == "put") {
Kind = AK_Put;
} else if (KindStr == "set") {
Diag(KindLoc, diag::err_ms_property_has_set_accessor)
<< FixItHint::CreateReplacement(KindLoc, "put");
Kind = AK_Put;
} else if (NextToken().is(tok::comma) || NextToken().is(tok::r_paren)) {
Diag(KindLoc, diag::err_ms_property_missing_accessor_kind);
ConsumeToken();
HasInvalidAccessor = true;
goto next_property_accessor;
} else {
Diag(KindLoc, diag::err_ms_property_unknown_accessor);
HasInvalidAccessor = true;
Kind = AK_Invalid;
if (!NextToken().is(tok::equal))
break;
}
ConsumeToken();
if (!TryConsumeToken(tok::equal)) {
Diag(Tok.getLocation(), diag::err_ms_property_expected_equal)
<< KindStr;
break;
}
if (!Tok.is(tok::identifier)) {
Diag(Tok.getLocation(), diag::err_ms_property_expected_accessor_name);
break;
}
if (Kind == AK_Invalid) {
} else if (AccessorNames[Kind] != nullptr) {
Diag(KindLoc, diag::err_ms_property_duplicate_accessor) << KindStr;
} else {
AccessorNames[Kind] = Tok.getIdentifierInfo();
}
ConsumeToken();
next_property_accessor:
if (TryConsumeToken(tok::comma))
continue;
if (Tok.is(tok::r_paren))
break;
Diag(Tok.getLocation(), diag::err_ms_property_expected_comma_or_rparen);
break;
}
if (!HasInvalidAccessor)
Attrs.addNewPropertyAttr(AttrName, AttrNameLoc, nullptr, SourceLocation(),
AccessorNames[AK_Get], AccessorNames[AK_Put],
AttributeList::AS_Declspec);
T.skipToEnd();
return !HasInvalidAccessor;
}
unsigned NumArgs =
ParseAttributeArgsCommon(AttrName, AttrNameLoc, Attrs, nullptr, nullptr,
SourceLocation(), AttributeList::AS_Declspec);
const AttributeList *Attr = Attrs.getList();
if (Attr && Attr->getMaxArgs() && !NumArgs) {
Diag(OpenParenLoc, diag::err_attribute_requires_arguments) << AttrName;
return false;
}
return true;
}
void Parser::ParseMicrosoftDeclSpecs(ParsedAttributes &Attrs,
SourceLocation *End) {
assert(getLangOpts().DeclSpecKeyword && "__declspec keyword is not enabled");
assert(Tok.is(tok::kw___declspec) && "Not a declspec!");
while (Tok.is(tok::kw___declspec)) {
ConsumeToken();
BalancedDelimiterTracker T(*this, tok::l_paren);
if (T.expectAndConsume(diag::err_expected_lparen_after, "__declspec",
tok::r_paren))
return;
while (Tok.isNot(tok::r_paren)) {
if (TryConsumeToken(tok::comma))
continue;
bool IsString = Tok.getKind() == tok::string_literal;
if (!IsString && Tok.getKind() != tok::identifier &&
Tok.getKind() != tok::kw_restrict) {
Diag(Tok, diag::err_ms_declspec_type);
T.skipToEnd();
return;
}
IdentifierInfo *AttrName;
SourceLocation AttrNameLoc;
if (IsString) {
SmallString<8> StrBuffer;
bool Invalid = false;
StringRef Str = PP.getSpelling(Tok, StrBuffer, &Invalid);
if (Invalid) {
T.skipToEnd();
return;
}
AttrName = PP.getIdentifierInfo(Str);
AttrNameLoc = ConsumeStringToken();
} else {
AttrName = Tok.getIdentifierInfo();
AttrNameLoc = ConsumeToken();
}
bool AttrHandled = false;
if (Tok.is(tok::l_paren))
AttrHandled = ParseMicrosoftDeclSpecArgs(AttrName, AttrNameLoc, Attrs);
else if (AttrName->getName() == "property")
Diag(Tok.getLocation(), diag::err_expected_lparen_after)
<< AttrName->getName();
if (!AttrHandled)
Attrs.addNew(AttrName, AttrNameLoc, nullptr, AttrNameLoc, nullptr, 0,
AttributeList::AS_Declspec);
}
T.consumeClose();
if (End)
*End = T.getCloseLocation();
}
}
void Parser::ParseMicrosoftTypeAttributes(ParsedAttributes &attrs) {
while (true) {
switch (Tok.getKind()) {
case tok::kw___fastcall:
case tok::kw___stdcall:
case tok::kw___thiscall:
case tok::kw___cdecl:
case tok::kw___vectorcall:
case tok::kw___ptr64:
case tok::kw___w64:
case tok::kw___ptr32:
case tok::kw___unaligned:
case tok::kw___sptr:
case tok::kw___uptr: {
IdentifierInfo *AttrName = Tok.getIdentifierInfo();
SourceLocation AttrNameLoc = ConsumeToken();
attrs.addNew(AttrName, AttrNameLoc, nullptr, AttrNameLoc, nullptr, 0,
AttributeList::AS_Keyword);
break;
}
default:
return;
}
}
}
void Parser::DiagnoseAndSkipExtendedMicrosoftTypeAttributes() {
SourceLocation StartLoc = Tok.getLocation();
SourceLocation EndLoc = SkipExtendedMicrosoftTypeAttributes();
if (EndLoc.isValid()) {
SourceRange Range(StartLoc, EndLoc);
Diag(StartLoc, diag::warn_microsoft_qualifiers_ignored) << Range;
}
}
SourceLocation Parser::SkipExtendedMicrosoftTypeAttributes() {
SourceLocation EndLoc;
while (true) {
switch (Tok.getKind()) {
case tok::kw_const:
case tok::kw_volatile:
case tok::kw___fastcall:
case tok::kw___stdcall:
case tok::kw___thiscall:
case tok::kw___cdecl:
case tok::kw___vectorcall:
case tok::kw___ptr32:
case tok::kw___ptr64:
case tok::kw___w64:
case tok::kw___unaligned:
case tok::kw___sptr:
case tok::kw___uptr:
EndLoc = ConsumeToken();
break;
default:
return EndLoc;
}
}
}
void Parser::ParseBorlandTypeAttributes(ParsedAttributes &attrs) {
while (Tok.is(tok::kw___pascal)) {
IdentifierInfo *AttrName = Tok.getIdentifierInfo();
SourceLocation AttrNameLoc = ConsumeToken();
attrs.addNew(AttrName, AttrNameLoc, nullptr, AttrNameLoc, nullptr, 0,
AttributeList::AS_Keyword);
}
}
void Parser::ParseOpenCLAttributes(ParsedAttributes &attrs) {
while (Tok.is(tok::kw___kernel)) {
IdentifierInfo *AttrName = Tok.getIdentifierInfo();
SourceLocation AttrNameLoc = ConsumeToken();
attrs.addNew(AttrName, AttrNameLoc, nullptr, AttrNameLoc, nullptr, 0,
AttributeList::AS_Keyword);
}
}
void Parser::ParseOpenCLQualifiers(ParsedAttributes &Attrs) {
IdentifierInfo *AttrName = Tok.getIdentifierInfo();
SourceLocation AttrNameLoc = Tok.getLocation();
Attrs.addNew(AttrName, AttrNameLoc, nullptr, AttrNameLoc, nullptr, 0,
AttributeList::AS_Keyword);
}
void Parser::ParseNullabilityTypeSpecifiers(ParsedAttributes &attrs) {
while (true) {
switch (Tok.getKind()) {
case tok::kw__Nonnull:
case tok::kw__Nullable:
case tok::kw__Null_unspecified: {
IdentifierInfo *AttrName = Tok.getIdentifierInfo();
SourceLocation AttrNameLoc = ConsumeToken();
if (!getLangOpts().ObjC1)
Diag(AttrNameLoc, diag::ext_nullability)
<< AttrName;
attrs.addNew(AttrName, AttrNameLoc, nullptr, AttrNameLoc, nullptr, 0,
AttributeList::AS_Keyword);
break;
}
default:
return;
}
}
}
static bool VersionNumberSeparator(const char Separator) {
return (Separator == '.' || Separator == '_');
}
VersionTuple Parser::ParseVersionTuple(SourceRange &Range) {
Range = Tok.getLocation();
if (!Tok.is(tok::numeric_constant)) {
Diag(Tok, diag::err_expected_version);
SkipUntil(tok::comma, tok::r_paren,
StopAtSemi | StopBeforeMatch | StopAtCodeCompletion);
return VersionTuple();
}
SmallString<512> Buffer;
Buffer.resize(Tok.getLength()+1);
const char *ThisTokBegin = &Buffer[0];
bool Invalid = false;
unsigned ActualLength = PP.getSpelling(Tok, ThisTokBegin, &Invalid);
if (Invalid)
return VersionTuple();
unsigned AfterMajor = 0;
unsigned Major = 0;
while (AfterMajor < ActualLength && isDigit(ThisTokBegin[AfterMajor])) {
Major = Major * 10 + ThisTokBegin[AfterMajor] - '0';
++AfterMajor;
}
if (AfterMajor == 0) {
Diag(Tok, diag::err_expected_version);
SkipUntil(tok::comma, tok::r_paren,
StopAtSemi | StopBeforeMatch | StopAtCodeCompletion);
return VersionTuple();
}
if (AfterMajor == ActualLength) {
ConsumeToken();
if (Major == 0) {
Diag(Tok, diag::err_zero_version);
return VersionTuple();
}
return VersionTuple(Major);
}
const char AfterMajorSeparator = ThisTokBegin[AfterMajor];
if (!VersionNumberSeparator(AfterMajorSeparator)
|| (AfterMajor + 1 == ActualLength)) {
Diag(Tok, diag::err_expected_version);
SkipUntil(tok::comma, tok::r_paren,
StopAtSemi | StopBeforeMatch | StopAtCodeCompletion);
return VersionTuple();
}
unsigned AfterMinor = AfterMajor + 1;
unsigned Minor = 0;
while (AfterMinor < ActualLength && isDigit(ThisTokBegin[AfterMinor])) {
Minor = Minor * 10 + ThisTokBegin[AfterMinor] - '0';
++AfterMinor;
}
if (AfterMinor == ActualLength) {
ConsumeToken();
if (Major == 0 && Minor == 0) {
Diag(Tok, diag::err_zero_version);
return VersionTuple();
}
return VersionTuple(Major, Minor, (AfterMajorSeparator == '_'));
}
const char AfterMinorSeparator = ThisTokBegin[AfterMinor];
if (!VersionNumberSeparator(AfterMinorSeparator)) {
Diag(Tok, diag::err_expected_version);
SkipUntil(tok::comma, tok::r_paren,
StopAtSemi | StopBeforeMatch | StopAtCodeCompletion);
return VersionTuple();
}
if (AfterMajorSeparator != AfterMinorSeparator)
Diag(Tok, diag::warn_expected_consistent_version_separator);
unsigned AfterSubminor = AfterMinor + 1;
unsigned Subminor = 0;
while (AfterSubminor < ActualLength && isDigit(ThisTokBegin[AfterSubminor])) {
Subminor = Subminor * 10 + ThisTokBegin[AfterSubminor] - '0';
++AfterSubminor;
}
if (AfterSubminor != ActualLength) {
Diag(Tok, diag::err_expected_version);
SkipUntil(tok::comma, tok::r_paren,
StopAtSemi | StopBeforeMatch | StopAtCodeCompletion);
return VersionTuple();
}
ConsumeToken();
return VersionTuple(Major, Minor, Subminor, (AfterMajorSeparator == '_'));
}
void Parser::ParseAvailabilityAttribute(IdentifierInfo &Availability,
SourceLocation AvailabilityLoc,
ParsedAttributes &attrs,
SourceLocation *endLoc,
IdentifierInfo *ScopeName,
SourceLocation ScopeLoc,
AttributeList::Syntax Syntax) {
enum { Introduced, Deprecated, Obsoleted, Unknown };
AvailabilityChange Changes[Unknown];
ExprResult MessageExpr, ReplacementExpr;
BalancedDelimiterTracker T(*this, tok::l_paren);
if (T.consumeOpen()) {
Diag(Tok, diag::err_expected) << tok::l_paren;
return;
}
if (Tok.isNot(tok::identifier)) {
Diag(Tok, diag::err_availability_expected_platform);
SkipUntil(tok::r_paren, StopAtSemi);
return;
}
IdentifierLoc *Platform = ParseIdentifierLoc();
if (Platform->Ident && Platform->Ident->getName() == "macosx")
Platform->Ident = PP.getIdentifierInfo("macos");
if (Platform->Ident && Platform->Ident->getName() == "macosx_app_extension")
Platform->Ident = PP.getIdentifierInfo("macos_app_extension");
if (ExpectAndConsume(tok::comma)) {
SkipUntil(tok::r_paren, StopAtSemi);
return;
}
if (!Ident_introduced) {
Ident_introduced = PP.getIdentifierInfo("introduced");
Ident_deprecated = PP.getIdentifierInfo("deprecated");
Ident_obsoleted = PP.getIdentifierInfo("obsoleted");
Ident_unavailable = PP.getIdentifierInfo("unavailable");
Ident_message = PP.getIdentifierInfo("message");
Ident_strict = PP.getIdentifierInfo("strict");
Ident_replacement = PP.getIdentifierInfo("replacement");
}
SourceLocation UnavailableLoc, StrictLoc;
do {
if (Tok.isNot(tok::identifier)) {
Diag(Tok, diag::err_availability_expected_change);
SkipUntil(tok::r_paren, StopAtSemi);
return;
}
IdentifierInfo *Keyword = Tok.getIdentifierInfo();
SourceLocation KeywordLoc = ConsumeToken();
if (Keyword == Ident_strict) {
if (StrictLoc.isValid()) {
Diag(KeywordLoc, diag::err_availability_redundant)
<< Keyword << SourceRange(StrictLoc);
}
StrictLoc = KeywordLoc;
continue;
}
if (Keyword == Ident_unavailable) {
if (UnavailableLoc.isValid()) {
Diag(KeywordLoc, diag::err_availability_redundant)
<< Keyword << SourceRange(UnavailableLoc);
}
UnavailableLoc = KeywordLoc;
continue;
}
if (Tok.isNot(tok::equal)) {
Diag(Tok, diag::err_expected_after) << Keyword << tok::equal;
SkipUntil(tok::r_paren, StopAtSemi);
return;
}
ConsumeToken();
if (Keyword == Ident_message || Keyword == Ident_replacement) {
if (Tok.isNot(tok::string_literal)) {
Diag(Tok, diag::err_expected_string_literal)
<< 2;
SkipUntil(tok::r_paren, StopAtSemi);
return;
}
if (Keyword == Ident_message)
MessageExpr = ParseStringLiteralExpression();
else
ReplacementExpr = ParseStringLiteralExpression();
if (StringLiteral *MessageStringLiteral =
cast_or_null<StringLiteral>(MessageExpr.get())) {
if (MessageStringLiteral->getCharByteWidth() != 1) {
Diag(MessageStringLiteral->getSourceRange().getBegin(),
diag::err_expected_string_literal)
<< 2;
SkipUntil(tok::r_paren, StopAtSemi);
return;
}
}
if (Keyword == Ident_message)
break;
else
continue;
}
if ((Keyword == Ident_introduced || Keyword == Ident_deprecated) &&
Tok.is(tok::identifier)) {
IdentifierInfo *NA = Tok.getIdentifierInfo();
if (NA->getName() == "NA") {
ConsumeToken();
if (Keyword == Ident_introduced)
UnavailableLoc = KeywordLoc;
continue;
}
}
SourceRange VersionRange;
VersionTuple Version = ParseVersionTuple(VersionRange);
if (Version.empty()) {
SkipUntil(tok::r_paren, StopAtSemi);
return;
}
unsigned Index;
if (Keyword == Ident_introduced)
Index = Introduced;
else if (Keyword == Ident_deprecated)
Index = Deprecated;
else if (Keyword == Ident_obsoleted)
Index = Obsoleted;
else
Index = Unknown;
if (Index < Unknown) {
if (!Changes[Index].KeywordLoc.isInvalid()) {
Diag(KeywordLoc, diag::err_availability_redundant)
<< Keyword
<< SourceRange(Changes[Index].KeywordLoc,
Changes[Index].VersionRange.getEnd());
}
Changes[Index].KeywordLoc = KeywordLoc;
Changes[Index].Version = Version;
Changes[Index].VersionRange = VersionRange;
} else {
Diag(KeywordLoc, diag::err_availability_unknown_change)
<< Keyword << VersionRange;
}
} while (TryConsumeToken(tok::comma));
if (T.consumeClose())
return;
if (endLoc)
*endLoc = T.getCloseLocation();
if (UnavailableLoc.isValid()) {
bool Complained = false;
for (unsigned Index = Introduced; Index != Unknown; ++Index) {
if (Changes[Index].KeywordLoc.isValid()) {
if (!Complained) {
Diag(UnavailableLoc, diag::warn_availability_and_unavailable)
<< SourceRange(Changes[Index].KeywordLoc,
Changes[Index].VersionRange.getEnd());
Complained = true;
}
Changes[Index] = AvailabilityChange();
}
}
}
attrs.addNew(&Availability,
SourceRange(AvailabilityLoc, T.getCloseLocation()),
ScopeName, ScopeLoc,
Platform,
Changes[Introduced],
Changes[Deprecated],
Changes[Obsoleted],
UnavailableLoc, MessageExpr.get(),
Syntax, StrictLoc, ReplacementExpr.get());
}
void Parser::ParseObjCBridgeRelatedAttribute(IdentifierInfo &ObjCBridgeRelated,
SourceLocation ObjCBridgeRelatedLoc,
ParsedAttributes &attrs,
SourceLocation *endLoc,
IdentifierInfo *ScopeName,
SourceLocation ScopeLoc,
AttributeList::Syntax Syntax) {
BalancedDelimiterTracker T(*this, tok::l_paren);
if (T.consumeOpen()) {
Diag(Tok, diag::err_expected) << tok::l_paren;
return;
}
if (Tok.isNot(tok::identifier)) {
Diag(Tok, diag::err_objcbridge_related_expected_related_class);
SkipUntil(tok::r_paren, StopAtSemi);
return;
}
IdentifierLoc *RelatedClass = ParseIdentifierLoc();
if (ExpectAndConsume(tok::comma)) {
SkipUntil(tok::r_paren, StopAtSemi);
return;
}
IdentifierLoc *ClassMethod = nullptr;
if (Tok.is(tok::identifier)) {
ClassMethod = ParseIdentifierLoc();
if (!TryConsumeToken(tok::colon)) {
Diag(Tok, diag::err_objcbridge_related_selector_name);
SkipUntil(tok::r_paren, StopAtSemi);
return;
}
}
if (!TryConsumeToken(tok::comma)) {
if (Tok.is(tok::colon))
Diag(Tok, diag::err_objcbridge_related_selector_name);
else
Diag(Tok, diag::err_expected) << tok::comma;
SkipUntil(tok::r_paren, StopAtSemi);
return;
}
IdentifierLoc *InstanceMethod = nullptr;
if (Tok.is(tok::identifier))
InstanceMethod = ParseIdentifierLoc();
else if (Tok.isNot(tok::r_paren)) {
Diag(Tok, diag::err_expected) << tok::r_paren;
SkipUntil(tok::r_paren, StopAtSemi);
return;
}
if (T.consumeClose())
return;
if (endLoc)
*endLoc = T.getCloseLocation();
attrs.addNew(&ObjCBridgeRelated,
SourceRange(ObjCBridgeRelatedLoc, T.getCloseLocation()),
ScopeName, ScopeLoc,
RelatedClass,
ClassMethod,
InstanceMethod,
Syntax);
}
void Parser::LateParsedDeclaration::ParseLexedAttributes() {}
void Parser::LateParsedClass::ParseLexedAttributes() {
Self->ParseLexedAttributes(*Class);
}
void Parser::LateParsedAttribute::ParseLexedAttributes() {
Self->ParseLexedAttribute(*this, true, false);
}
void Parser::ParseLexedAttributes(ParsingClass &Class) {
bool HasTemplateScope = !Class.TopLevelClass && Class.TemplateScope;
ParseScope ClassTemplateScope(this, Scope::TemplateParamScope,
HasTemplateScope);
if (HasTemplateScope)
Actions.ActOnReenterTemplateScope(getCurScope(), Class.TagOrTemplate);
bool AlreadyHasClassScope = Class.TopLevelClass;
unsigned ScopeFlags = Scope::ClassScope|Scope::DeclScope;
ParseScope ClassScope(this, ScopeFlags, !AlreadyHasClassScope);
ParseScopeFlags ClassScopeFlags(this, ScopeFlags, AlreadyHasClassScope);
if (!AlreadyHasClassScope)
Actions.ActOnStartDelayedMemberDeclarations(getCurScope(),
Class.TagOrTemplate);
if (!Class.LateParsedDeclarations.empty()) {
for (unsigned i = 0, ni = Class.LateParsedDeclarations.size(); i < ni; ++i){
Class.LateParsedDeclarations[i]->ParseLexedAttributes();
}
}
if (!AlreadyHasClassScope)
Actions.ActOnFinishDelayedMemberDeclarations(getCurScope(),
Class.TagOrTemplate);
}
void Parser::ParseLexedAttributeList(LateParsedAttrList &LAs, Decl *D,
bool EnterScope, bool OnDefinition) {
assert(LAs.parseSoon() &&
"Attribute list should be marked for immediate parsing.");
for (unsigned i = 0, ni = LAs.size(); i < ni; ++i) {
if (D)
LAs[i]->addDecl(D);
ParseLexedAttribute(*LAs[i], EnterScope, OnDefinition);
delete LAs[i];
}
LAs.clear();
}
void Parser::ParseLexedAttribute(LateParsedAttribute &LA,
bool EnterScope, bool OnDefinition) {
Token AttrEnd;
AttrEnd.startToken();
AttrEnd.setKind(tok::eof);
AttrEnd.setLocation(Tok.getLocation());
AttrEnd.setEofData(LA.Toks.data());
LA.Toks.push_back(AttrEnd);
LA.Toks.push_back(Tok);
PP.EnterTokenStream(LA.Toks.data(), LA.Toks.size(), true, false);
ConsumeAnyToken(true);
ParsedAttributes Attrs(AttrFactory);
SourceLocation endLoc;
if (LA.Decls.size() > 0) {
Decl *D = LA.Decls[0];
NamedDecl *ND = dyn_cast<NamedDecl>(D);
RecordDecl *RD = dyn_cast_or_null<RecordDecl>(D->getDeclContext());
Sema::CXXThisScopeRAII ThisScope(Actions, RD, 0,
ND && ND->isCXXInstanceMember());
if (LA.Decls.size() == 1) {
bool HasTemplateScope = EnterScope && D->isTemplateDecl();
ParseScope TempScope(this, Scope::TemplateParamScope, HasTemplateScope);
if (HasTemplateScope)
Actions.ActOnReenterTemplateScope(Actions.CurScope, D);
bool HasFunScope = EnterScope && D->isFunctionOrFunctionTemplate();
ParseScope FnScope(this, Scope::FnScope|Scope::DeclScope, HasFunScope);
if (HasFunScope)
Actions.ActOnReenterFunctionContext(Actions.CurScope, D);
ParseGNUAttributeArgs(&LA.AttrName, LA.AttrNameLoc, Attrs, &endLoc,
nullptr, SourceLocation(), AttributeList::AS_GNU,
nullptr);
if (HasFunScope) {
Actions.ActOnExitFunctionContext();
FnScope.Exit(); }
if (HasTemplateScope) {
TempScope.Exit();
}
} else {
ParseGNUAttributeArgs(&LA.AttrName, LA.AttrNameLoc, Attrs, &endLoc,
nullptr, SourceLocation(), AttributeList::AS_GNU,
nullptr);
}
} else {
Diag(Tok, diag::warn_attribute_no_decl) << LA.AttrName.getName();
}
const AttributeList *AL = Attrs.getList();
if (OnDefinition && AL && !AL->isCXX11Attribute() &&
AL->isKnownToGCC())
Diag(Tok, diag::warn_attribute_on_function_definition)
<< &LA.AttrName;
for (unsigned i = 0, ni = LA.Decls.size(); i < ni; ++i)
Actions.ActOnFinishDelayedAttribute(getCurScope(), LA.Decls[i], Attrs);
while (Tok.isNot(tok::eof))
ConsumeAnyToken();
if (Tok.is(tok::eof) && Tok.getEofData() == AttrEnd.getEofData())
ConsumeAnyToken();
}
void Parser::ParseTypeTagForDatatypeAttribute(IdentifierInfo &AttrName,
SourceLocation AttrNameLoc,
ParsedAttributes &Attrs,
SourceLocation *EndLoc,
IdentifierInfo *ScopeName,
SourceLocation ScopeLoc,
AttributeList::Syntax Syntax) {
assert(Tok.is(tok::l_paren) && "Attribute arg list not starting with '('");
BalancedDelimiterTracker T(*this, tok::l_paren);
T.consumeOpen();
if (Tok.isNot(tok::identifier)) {
Diag(Tok, diag::err_expected) << tok::identifier;
T.skipToEnd();
return;
}
IdentifierLoc *ArgumentKind = ParseIdentifierLoc();
if (ExpectAndConsume(tok::comma)) {
T.skipToEnd();
return;
}
SourceRange MatchingCTypeRange;
TypeResult MatchingCType = ParseTypeName(&MatchingCTypeRange);
if (MatchingCType.isInvalid()) {
T.skipToEnd();
return;
}
bool LayoutCompatible = false;
bool MustBeNull = false;
while (TryConsumeToken(tok::comma)) {
if (Tok.isNot(tok::identifier)) {
Diag(Tok, diag::err_expected) << tok::identifier;
T.skipToEnd();
return;
}
IdentifierInfo *Flag = Tok.getIdentifierInfo();
if (Flag->isStr("layout_compatible"))
LayoutCompatible = true;
else if (Flag->isStr("must_be_null"))
MustBeNull = true;
else {
Diag(Tok, diag::err_type_safety_unknown_flag) << Flag;
T.skipToEnd();
return;
}
ConsumeToken(); }
if (!T.consumeClose()) {
Attrs.addNewTypeTagForDatatype(&AttrName, AttrNameLoc, ScopeName, ScopeLoc,
ArgumentKind, MatchingCType.get(),
LayoutCompatible, MustBeNull, Syntax);
}
if (EndLoc)
*EndLoc = T.getCloseLocation();
}
bool Parser::DiagnoseProhibitedCXX11Attribute() {
assert(Tok.is(tok::l_square) && NextToken().is(tok::l_square));
switch (isCXX11AttributeSpecifier(true)) {
case CAK_NotAttributeSpecifier:
return false;
case CAK_InvalidAttributeSpecifier:
Diag(Tok.getLocation(), diag::err_l_square_l_square_not_attribute);
return false;
case CAK_AttributeSpecifier:
SourceLocation BeginLoc = ConsumeBracket();
ConsumeBracket();
SkipUntil(tok::r_square);
assert(Tok.is(tok::r_square) && "isCXX11AttributeSpecifier lied");
SourceLocation EndLoc = ConsumeBracket();
Diag(BeginLoc, diag::err_attributes_not_allowed)
<< SourceRange(BeginLoc, EndLoc);
return true;
}
llvm_unreachable("All cases handled above.");
}
void Parser::DiagnoseMisplacedCXX11Attribute(ParsedAttributesWithRange &Attrs,
SourceLocation CorrectLocation) {
assert((Tok.is(tok::l_square) && NextToken().is(tok::l_square)) ||
Tok.is(tok::kw_alignas));
SourceLocation Loc = Tok.getLocation();
ParseCXX11Attributes(Attrs);
CharSourceRange AttrRange(SourceRange(Loc, Attrs.Range.getEnd()), true);
Diag(Loc, diag::err_attributes_not_allowed)
<< FixItHint::CreateInsertionFromRange(CorrectLocation, AttrRange)
<< FixItHint::CreateRemoval(AttrRange);
}
void Parser::DiagnoseProhibitedAttributes(ParsedAttributesWithRange &attrs) {
Diag(attrs.Range.getBegin(), diag::err_attributes_not_allowed)
<< attrs.Range;
}
void Parser::ProhibitCXX11Attributes(ParsedAttributesWithRange &attrs) {
AttributeList *AttrList = attrs.getList();
while (AttrList) {
if (AttrList->isCXX11Attribute()) {
Diag(AttrList->getLoc(), diag::err_attribute_not_type_attr)
<< AttrList->getName();
AttrList->setInvalid();
}
AttrList = AttrList->getNext();
}
}
void Parser::handleDeclspecAlignBeforeClassKey(ParsedAttributesWithRange &Attrs,
DeclSpec &DS,
Sema::TagUseKind TUK) {
if (TUK == Sema::TUK_Reference)
return;
ParsedAttributes &PA = DS.getAttributes();
AttributeList *AL = PA.getList();
AttributeList *Prev = nullptr;
while (AL) {
AttributeList *Next = AL->getNext();
if (AL->getKind() == AttributeList::AT_Aligned &&
AL->isDeclspecAttribute()) {
AL->setNext(nullptr);
Attrs.add(AL);
if (Prev) {
Prev->setNext(Next);
} else {
PA.set(Next);
}
} else {
Prev = AL;
}
AL = Next;
}
}
Parser::DeclGroupPtrTy Parser::ParseDeclaration(unsigned Context,
SourceLocation &DeclEnd,
ParsedAttributesWithRange &attrs) {
ParenBraceBracketBalancer BalancerRAIIObj(*this);
ObjCDeclContextSwitch ObjCDC(*this);
Decl *SingleDecl = nullptr;
Decl *OwnedType = nullptr;
switch (Tok.getKind()) {
case tok::kw_template:
case tok::kw_export:
ProhibitAttributes(attrs);
SingleDecl = ParseDeclarationStartingWithTemplate(Context, DeclEnd);
break;
case tok::kw_inline:
if (getLangOpts().CPlusPlus && NextToken().is(tok::kw_namespace)) {
ProhibitAttributes(attrs);
SourceLocation InlineLoc = ConsumeToken();
return ParseNamespace(Context, DeclEnd, InlineLoc);
}
return ParseSimpleDeclaration(Context, DeclEnd, attrs,
true);
case tok::kw_namespace:
ProhibitAttributes(attrs);
return ParseNamespace(Context, DeclEnd);
case tok::kw_using:
SingleDecl = ParseUsingDirectiveOrDeclaration(Context, ParsedTemplateInfo(),
DeclEnd, attrs, &OwnedType);
break;
case tok::kw_static_assert:
case tok::kw__Static_assert:
ProhibitAttributes(attrs);
SingleDecl = ParseStaticAssertDeclaration(DeclEnd);
break;
default:
return ParseSimpleDeclaration(Context, DeclEnd, attrs, true);
}
return Actions.ConvertDeclToDeclGroup(SingleDecl, OwnedType);
}
Parser::DeclGroupPtrTy
Parser::ParseSimpleDeclaration(unsigned Context,
SourceLocation &DeclEnd,
ParsedAttributesWithRange &Attrs,
bool RequireSemi, ForRangeInit *FRI) {
ParsingDeclSpec DS(*this);
DeclSpecContext DSContext = getDeclSpecContextFromDeclaratorContext(Context);
ParseDeclarationSpecifiers(DS, ParsedTemplateInfo(), AS_none, DSContext);
if (DS.hasTagDefinition() &&
DiagnoseMissingSemiAfterTagDefinition(DS, AS_none, DSContext))
return nullptr;
if (Tok.is(tok::semi)) {
ProhibitAttributes(Attrs);
DeclEnd = Tok.getLocation();
if (RequireSemi) ConsumeToken();
Decl *TheDecl = Actions.ParsedFreeStandingDeclSpec(getCurScope(), AS_none,
DS);
DS.complete(TheDecl);
return Actions.ConvertDeclToDeclGroup(TheDecl);
}
DS.takeAttributesFrom(Attrs);
return ParseDeclGroup(DS, Context, &DeclEnd, FRI);
}
bool Parser::MightBeDeclarator(unsigned Context) {
switch (Tok.getKind()) {
case tok::annot_cxxscope:
case tok::annot_template_id:
case tok::caret:
case tok::code_completion:
case tok::coloncolon:
case tok::ellipsis:
case tok::kw___attribute:
case tok::kw_operator:
case tok::l_paren:
case tok::star:
return true;
case tok::amp:
case tok::ampamp:
return getLangOpts().CPlusPlus;
case tok::l_square: return Context == Declarator::MemberContext && getLangOpts().CPlusPlus11 &&
NextToken().is(tok::l_square);
case tok::colon: return Context == Declarator::MemberContext || getLangOpts().CPlusPlus;
case tok::identifier:
switch (NextToken().getKind()) {
case tok::code_completion:
case tok::coloncolon:
case tok::comma:
case tok::equal:
case tok::equalequal: case tok::kw_alignas:
case tok::kw_asm:
case tok::kw___attribute:
case tok::l_brace:
case tok::l_paren:
case tok::l_square:
case tok::less:
case tok::r_brace:
case tok::r_paren:
case tok::r_square:
case tok::semi:
return true;
case tok::colon:
return Context == Declarator::MemberContext ||
(getLangOpts().CPlusPlus && Context == Declarator::FileContext);
case tok::identifier: return getLangOpts().CPlusPlus11 && isCXX11VirtSpecifier(NextToken());
default:
return false;
}
default:
return false;
}
}
void Parser::SkipMalformedDecl() {
while (true) {
switch (Tok.getKind()) {
case tok::l_brace:
ConsumeBrace();
SkipUntil(tok::r_brace);
if (Tok.isOneOf(tok::comma, tok::l_brace, tok::kw_try)) {
continue;
}
TryConsumeToken(tok::semi);
return;
case tok::l_square:
ConsumeBracket();
SkipUntil(tok::r_square);
continue;
case tok::l_paren:
ConsumeParen();
SkipUntil(tok::r_paren);
continue;
case tok::r_brace:
return;
case tok::semi:
ConsumeToken();
return;
case tok::kw_inline:
if (Tok.isAtStartOfLine() && NextToken().is(tok::kw_namespace) &&
(!ParsingInObjCContainer || CurParsedObjCImpl))
return;
break;
case tok::kw_namespace:
if (Tok.isAtStartOfLine() &&
(!ParsingInObjCContainer || CurParsedObjCImpl))
return;
break;
case tok::at:
if (NextToken().isObjCAtKeyword(tok::objc_end) &&
ParsingInObjCContainer)
return;
break;
case tok::minus:
case tok::plus:
if (Tok.isAtStartOfLine() && ParsingInObjCContainer)
return;
break;
case tok::eof:
case tok::annot_module_begin:
case tok::annot_module_end:
case tok::annot_module_include:
return;
default:
break;
}
ConsumeAnyToken();
}
}
Parser::DeclGroupPtrTy Parser::ParseDeclGroup(ParsingDeclSpec &DS,
unsigned Context,
SourceLocation *DeclEnd,
ForRangeInit *FRI) {
ParsingDeclarator D(*this, DS, static_cast<Declarator::TheContext>(Context));
ParseDeclarator(D);
if (!D.hasName() && !D.mayOmitIdentifier()) {
SkipMalformedDecl();
return nullptr;
}
LateParsedAttrList LateParsedAttrs(true);
if (D.isFunctionDeclarator()) {
MaybeParseGNUAttributes(D, &LateParsedAttrs);
if (Tok.is(tok::kw__Noreturn)) {
SourceLocation Loc = ConsumeToken();
const char *PrevSpec;
unsigned DiagID;
bool Fixit = !DS.setFunctionSpecNoreturn(Loc, PrevSpec, DiagID);
MaybeParseGNUAttributes(D, &LateParsedAttrs);
Fixit &= Tok.isOneOf(tok::semi, tok::l_brace, tok::kw_try);
Diag(Loc, diag::err_c11_noreturn_misplaced)
<< (Fixit ? FixItHint::CreateRemoval(Loc) : FixItHint())
<< (Fixit ? FixItHint::CreateInsertion(D.getLocStart(), "_Noreturn ")
: FixItHint());
}
}
if (D.isFunctionDeclarator() &&
!isDeclarationAfterDeclarator()) {
if (Context == Declarator::FileContext) {
if (isStartOfFunctionDefinition(D)) {
if (DS.getStorageClassSpec() == DeclSpec::SCS_typedef) {
Diag(Tok, diag::err_function_declared_typedef);
DS.ClearStorageClassSpecs();
}
Decl *TheDecl =
ParseFunctionDefinition(D, ParsedTemplateInfo(), &LateParsedAttrs);
return Actions.ConvertDeclToDeclGroup(TheDecl);
}
if (isDeclarationSpecifier()) {
} else {
Diag(Tok, diag::err_expected_fn_body);
SkipUntil(tok::semi);
return nullptr;
}
} else {
if (Tok.is(tok::l_brace)) {
Diag(Tok, diag::err_function_definition_not_allowed);
SkipMalformedDecl();
return nullptr;
}
}
}
if (ParseAsmAttributesAfterDeclarator(D))
return nullptr;
if (FRI && (Tok.is(tok::colon) || isTokIdentifier_in())) {
bool IsForRangeLoop = false;
if (TryConsumeToken(tok::colon, FRI->ColonLoc)) {
IsForRangeLoop = true;
if (Tok.is(tok::l_brace))
FRI->RangeExpr = ParseBraceInitializer();
else
FRI->RangeExpr = ParseExpression();
}
Decl *ThisDecl = Actions.ActOnDeclarator(getCurScope(), D);
if (IsForRangeLoop)
Actions.ActOnCXXForRangeDecl(ThisDecl);
Actions.FinalizeDeclaration(ThisDecl);
D.complete(ThisDecl);
return Actions.FinalizeDeclaratorGroup(getCurScope(), DS, ThisDecl);
}
SmallVector<Decl *, 8> DeclsInGroup;
Decl *FirstDecl = ParseDeclarationAfterDeclaratorAndAttributes(
D, ParsedTemplateInfo(), FRI);
if (LateParsedAttrs.size() > 0)
ParseLexedAttributeList(LateParsedAttrs, FirstDecl, true, false);
D.complete(FirstDecl);
if (FirstDecl)
DeclsInGroup.push_back(FirstDecl);
bool ExpectSemi = Context != Declarator::ForContext;
SourceLocation CommaLoc;
while (TryConsumeToken(tok::comma, CommaLoc)) {
if (Tok.isAtStartOfLine() && ExpectSemi && !MightBeDeclarator(Context)) {
Diag(CommaLoc, diag::err_expected_semi_declaration)
<< FixItHint::CreateReplacement(CommaLoc, ";");
ExpectSemi = false;
break;
}
D.clear();
D.setCommaLoc(CommaLoc);
MaybeParseGNUAttributes(D);
if (getLangOpts().MicrosoftExt)
DiagnoseAndSkipExtendedMicrosoftTypeAttributes();
ParseDeclarator(D);
if (!D.isInvalidType()) {
Decl *ThisDecl = ParseDeclarationAfterDeclarator(D);
D.complete(ThisDecl);
if (ThisDecl)
DeclsInGroup.push_back(ThisDecl);
}
}
if (DeclEnd)
*DeclEnd = Tok.getLocation();
if (ExpectSemi &&
ExpectAndConsumeSemi(Context == Declarator::FileContext
? diag::err_invalid_token_after_toplevel_declarator
: diag::err_expected_semi_declaration)) {
if (!isDeclarationSpecifier()) {
SkipUntil(tok::r_brace, StopAtSemi | StopBeforeMatch);
TryConsumeToken(tok::semi);
}
}
return Actions.FinalizeDeclaratorGroup(getCurScope(), DS, DeclsInGroup);
}
bool Parser::ParseAsmAttributesAfterDeclarator(Declarator &D) {
if (Tok.is(tok::kw_asm)) {
SourceLocation Loc;
ExprResult AsmLabel(ParseSimpleAsm(&Loc));
if (AsmLabel.isInvalid()) {
SkipUntil(tok::semi, StopBeforeMatch);
return true;
}
D.setAsmLabel(AsmLabel.get());
D.SetRangeEnd(Loc);
}
MaybeParseGNUAttributes(D);
return false;
}
Decl *Parser::ParseDeclarationAfterDeclarator(
Declarator &D, const ParsedTemplateInfo &TemplateInfo) {
if (ParseAsmAttributesAfterDeclarator(D))
return nullptr;
return ParseDeclarationAfterDeclaratorAndAttributes(D, TemplateInfo);
}
Decl *Parser::ParseDeclarationAfterDeclaratorAndAttributes(
Declarator &D, const ParsedTemplateInfo &TemplateInfo, ForRangeInit *FRI) {
Decl *ThisDecl = nullptr;
switch (TemplateInfo.Kind) {
case ParsedTemplateInfo::NonTemplate:
ThisDecl = Actions.ActOnDeclarator(getCurScope(), D);
break;
case ParsedTemplateInfo::Template:
case ParsedTemplateInfo::ExplicitSpecialization: {
ThisDecl = Actions.ActOnTemplateDeclarator(getCurScope(),
*TemplateInfo.TemplateParams,
D);
if (VarTemplateDecl *VT = dyn_cast_or_null<VarTemplateDecl>(ThisDecl))
ThisDecl = VT->getTemplatedDecl();
break;
}
case ParsedTemplateInfo::ExplicitInstantiation: {
if (Tok.is(tok::semi)) {
DeclResult ThisRes = Actions.ActOnExplicitInstantiation(
getCurScope(), TemplateInfo.ExternLoc, TemplateInfo.TemplateLoc, D);
if (ThisRes.isInvalid()) {
SkipUntil(tok::semi, StopBeforeMatch);
return nullptr;
}
ThisDecl = ThisRes.get();
} else {
if (D.getName().getKind() != UnqualifiedId::IK_TemplateId) {
Diag(Tok, diag::err_template_defn_explicit_instantiation)
<< 2 << FixItHint::CreateRemoval(TemplateInfo.TemplateLoc);
ThisDecl = Actions.ActOnDeclarator(getCurScope(), D);
} else {
SourceLocation LAngleLoc =
PP.getLocForEndOfToken(TemplateInfo.TemplateLoc);
Diag(D.getIdentifierLoc(),
diag::err_explicit_instantiation_with_definition)
<< SourceRange(TemplateInfo.TemplateLoc)
<< FixItHint::CreateInsertion(LAngleLoc, "<>");
TemplateParameterLists FakedParamLists;
FakedParamLists.push_back(Actions.ActOnTemplateParameterList(
0, SourceLocation(), TemplateInfo.TemplateLoc, LAngleLoc, None,
LAngleLoc));
ThisDecl =
Actions.ActOnTemplateDeclarator(getCurScope(), FakedParamLists, D);
}
}
break;
}
}
bool TypeContainsAuto = D.getDeclSpec().containsPlaceholderType();
if (isTokenEqualOrEqualTypo()) {
SourceLocation EqualLoc = ConsumeToken();
if (Tok.is(tok::kw_delete)) {
if (D.isFunctionDeclarator())
Diag(ConsumeToken(), diag::err_default_delete_in_multiple_declaration)
<< 1 ;
else
Diag(ConsumeToken(), diag::err_deleted_non_function);
} else if (Tok.is(tok::kw_default)) {
if (D.isFunctionDeclarator())
Diag(ConsumeToken(), diag::err_default_delete_in_multiple_declaration)
<< 0 ;
else
Diag(ConsumeToken(), diag::err_default_special_members);
} else {
if (getLangOpts().CPlusPlus && D.getCXXScopeSpec().isSet()) {
EnterScope(0);
Actions.ActOnCXXEnterDeclInitializer(getCurScope(), ThisDecl);
}
if (Tok.is(tok::code_completion)) {
Actions.CodeCompleteInitializer(getCurScope(), ThisDecl);
Actions.FinalizeDeclaration(ThisDecl);
cutOffParsing();
return nullptr;
}
ExprResult Init(ParseInitializer());
if (Tok.is(tok::r_paren) && FRI && D.isFirstDeclarator()) {
Diag(EqualLoc, diag::err_single_decl_assign_in_for_range)
<< FixItHint::CreateReplacement(EqualLoc, ":");
FRI->ColonLoc = EqualLoc;
Init = ExprError();
FRI->RangeExpr = Init;
}
if (getLangOpts().CPlusPlus && D.getCXXScopeSpec().isSet()) {
Actions.ActOnCXXExitDeclInitializer(getCurScope(), ThisDecl);
ExitScope();
}
if (Init.isInvalid()) {
SmallVector<tok::TokenKind, 2> StopTokens;
StopTokens.push_back(tok::comma);
if (D.getContext() == Declarator::ForContext)
StopTokens.push_back(tok::r_paren);
SkipUntil(StopTokens, StopAtSemi | StopBeforeMatch);
Actions.ActOnInitializerError(ThisDecl);
} else
Actions.AddInitializerToDecl(ThisDecl, Init.get(),
false, TypeContainsAuto);
}
} else if (Tok.is(tok::l_paren)) {
BalancedDelimiterTracker T(*this, tok::l_paren);
T.consumeOpen();
ExprVector Exprs;
CommaLocsTy CommaLocs;
if (getLangOpts().CPlusPlus && D.getCXXScopeSpec().isSet()) {
EnterScope(0);
Actions.ActOnCXXEnterDeclInitializer(getCurScope(), ThisDecl);
}
if (ParseExpressionList(Exprs, CommaLocs, [&] {
Actions.CodeCompleteConstructor(getCurScope(),
cast<VarDecl>(ThisDecl)->getType()->getCanonicalTypeInternal(),
ThisDecl->getLocation(), Exprs);
})) {
Actions.ActOnInitializerError(ThisDecl);
SkipUntil(tok::r_paren, StopAtSemi);
if (getLangOpts().CPlusPlus && D.getCXXScopeSpec().isSet()) {
Actions.ActOnCXXExitDeclInitializer(getCurScope(), ThisDecl);
ExitScope();
}
} else {
T.consumeClose();
assert(!Exprs.empty() && Exprs.size()-1 == CommaLocs.size() &&
"Unexpected number of commas!");
if (getLangOpts().CPlusPlus && D.getCXXScopeSpec().isSet()) {
Actions.ActOnCXXExitDeclInitializer(getCurScope(), ThisDecl);
ExitScope();
}
ExprResult Initializer = Actions.ActOnParenListExpr(T.getOpenLocation(),
T.getCloseLocation(),
Exprs);
Actions.AddInitializerToDecl(ThisDecl, Initializer.get(),
true, TypeContainsAuto);
}
} else if (getLangOpts().CPlusPlus11 && Tok.is(tok::l_brace) &&
(!CurParsedObjCImpl || !D.isFunctionDeclarator())) {
Diag(Tok, diag::warn_cxx98_compat_generalized_initializer_lists);
if (D.getCXXScopeSpec().isSet()) {
EnterScope(0);
Actions.ActOnCXXEnterDeclInitializer(getCurScope(), ThisDecl);
}
ExprResult Init(ParseBraceInitializer());
if (D.getCXXScopeSpec().isSet()) {
Actions.ActOnCXXExitDeclInitializer(getCurScope(), ThisDecl);
ExitScope();
}
if (Init.isInvalid()) {
Actions.ActOnInitializerError(ThisDecl);
} else
Actions.AddInitializerToDecl(ThisDecl, Init.get(),
true, TypeContainsAuto);
} else {
Actions.ActOnUninitializedDecl(ThisDecl, TypeContainsAuto);
}
Actions.FinalizeDeclaration(ThisDecl);
return ThisDecl;
}
void Parser::ParseSpecifierQualifierList(DeclSpec &DS, AccessSpecifier AS,
DeclSpecContext DSC) {
ParseDeclarationSpecifiers(DS, ParsedTemplateInfo(), AS, DSC);
unsigned Specs = DS.getParsedSpecifiers();
if (isTypeSpecifier(DSC) && !DS.hasTypeSpecifier()) {
Diag(Tok, diag::err_expected_type);
DS.SetTypeSpecError();
} else if (Specs == DeclSpec::PQ_None && !DS.hasAttributes()) {
Diag(Tok, diag::err_typename_requires_specqual);
if (!DS.hasTypeSpecifier())
DS.SetTypeSpecError();
}
if (Specs & DeclSpec::PQ_StorageClassSpecifier) {
if (DS.getStorageClassSpecLoc().isValid())
Diag(DS.getStorageClassSpecLoc(),diag::err_typename_invalid_storageclass);
else
Diag(DS.getThreadStorageClassSpecLoc(),
diag::err_typename_invalid_storageclass);
DS.ClearStorageClassSpecs();
}
if (Specs & DeclSpec::PQ_FunctionSpecifier) {
if (DS.isInlineSpecified())
Diag(DS.getInlineSpecLoc(), diag::err_typename_invalid_functionspec);
if (DS.isVirtualSpecified())
Diag(DS.getVirtualSpecLoc(), diag::err_typename_invalid_functionspec);
if (DS.isExplicitSpecified())
Diag(DS.getExplicitSpecLoc(), diag::err_typename_invalid_functionspec);
DS.ClearFunctionSpecs();
}
if (DS.isConstexprSpecified() && DSC != DSC_condition) {
Diag(DS.getConstexprSpecLoc(), diag::err_typename_invalid_constexpr);
DS.ClearConstexprSpec();
}
}
static bool isValidAfterIdentifierInDeclarator(const Token &T) {
return T.isOneOf(tok::l_square, tok::l_paren, tok::r_paren, tok::semi,
tok::comma, tok::equal, tok::kw_asm, tok::l_brace,
tok::colon);
}
bool Parser::ParseImplicitInt(DeclSpec &DS, CXXScopeSpec *SS,
const ParsedTemplateInfo &TemplateInfo,
AccessSpecifier AS, DeclSpecContext DSC,
ParsedAttributesWithRange &Attrs) {
assert(Tok.is(tok::identifier) && "should have identifier");
SourceLocation Loc = Tok.getLocation();
assert(!DS.hasTypeSpecifier() && "Type specifier checked above");
if (!isTypeSpecifier(DSC) && !getLangOpts().CPlusPlus &&
isValidAfterIdentifierInDeclarator(NextToken())) {
return false;
}
if (getLangOpts().CPlusPlus &&
DS.getStorageClassSpec() == DeclSpec::SCS_auto) {
if (SS)
AnnotateScopeToken(*SS, false);
return false;
}
if (SS == nullptr) {
const char *TagName = nullptr, *FixitTagName = nullptr;
tok::TokenKind TagKind = tok::unknown;
switch (Actions.isTagName(*Tok.getIdentifierInfo(), getCurScope())) {
default: break;
case DeclSpec::TST_enum:
TagName="enum" ; FixitTagName = "enum " ; TagKind=tok::kw_enum ;break;
case DeclSpec::TST_union:
TagName="union" ; FixitTagName = "union " ;TagKind=tok::kw_union ;break;
case DeclSpec::TST_struct:
TagName="struct"; FixitTagName = "struct ";TagKind=tok::kw_struct;break;
case DeclSpec::TST_interface:
TagName="__interface"; FixitTagName = "__interface ";
TagKind=tok::kw___interface;break;
case DeclSpec::TST_class:
TagName="class" ; FixitTagName = "class " ;TagKind=tok::kw_class ;break;
}
if (TagName) {
IdentifierInfo *TokenName = Tok.getIdentifierInfo();
LookupResult R(Actions, TokenName, SourceLocation(),
Sema::LookupOrdinaryName);
Diag(Loc, diag::err_use_of_tag_name_without_tag)
<< TokenName << TagName << getLangOpts().CPlusPlus
<< FixItHint::CreateInsertion(Tok.getLocation(), FixitTagName);
if (Actions.LookupParsedName(R, getCurScope(), SS)) {
for (LookupResult::iterator I = R.begin(), IEnd = R.end();
I != IEnd; ++I)
Diag((*I)->getLocation(), diag::note_decl_hiding_tag_type)
<< TokenName << TagName;
}
if (TagKind == tok::kw_enum)
ParseEnumSpecifier(Loc, DS, TemplateInfo, AS, DSC_normal);
else
ParseClassSpecifier(TagKind, Loc, DS, TemplateInfo, AS,
false, DSC_normal, Attrs);
return true;
}
}
if (!isTypeSpecifier(DSC) &&
(!SS || DSC == DSC_top_level || DSC == DSC_class)) {
switch (NextToken().getKind()) {
case tok::l_paren: {
TentativeParsingAction PA(*this);
ConsumeToken();
TPResult TPR = TryParseDeclarator(false);
PA.Revert();
if (TPR != TPResult::False) {
break;
}
if (DSC == DSC_class || (DSC == DSC_top_level && SS)) {
IdentifierInfo *II = Tok.getIdentifierInfo();
if (Actions.isCurrentClassNameTypo(II, SS)) {
Diag(Loc, diag::err_constructor_bad_name)
<< Tok.getIdentifierInfo() << II
<< FixItHint::CreateReplacement(Tok.getLocation(), II->getName());
Tok.setIdentifierInfo(II);
}
}
}
case tok::comma:
case tok::equal:
case tok::kw_asm:
case tok::l_brace:
case tok::l_square:
case tok::semi:
if (SS)
AnnotateScopeToken(*SS, false);
return false;
default:
break;
}
}
ParsedType T;
IdentifierInfo *II = Tok.getIdentifierInfo();
Actions.DiagnoseUnknownTypeName(II, Loc, getCurScope(), SS, T,
getLangOpts().CPlusPlus &&
NextToken().is(tok::less));
if (T) {
const char *PrevSpec;
unsigned DiagID;
DS.SetTypeSpecType(DeclSpec::TST_typename, Loc, PrevSpec, DiagID, T,
Actions.getASTContext().getPrintingPolicy());
DS.SetRangeEnd(Tok.getLocation());
ConsumeToken();
return true;
} else if (II != Tok.getIdentifierInfo()) {
Tok.setKind(II->getTokenID());
return true;
}
DS.SetTypeSpecError();
DS.SetRangeEnd(Tok.getLocation());
ConsumeToken();
return false;
}
Parser::DeclSpecContext
Parser::getDeclSpecContextFromDeclaratorContext(unsigned Context) {
if (Context == Declarator::MemberContext)
return DSC_class;
if (Context == Declarator::FileContext)
return DSC_top_level;
if (Context == Declarator::TemplateTypeArgContext)
return DSC_template_type_arg;
if (Context == Declarator::TrailingReturnContext)
return DSC_trailing;
if (Context == Declarator::AliasDeclContext ||
Context == Declarator::AliasTemplateContext)
return DSC_alias_declaration;
return DSC_normal;
}
ExprResult Parser::ParseAlignArgument(SourceLocation Start,
SourceLocation &EllipsisLoc) {
ExprResult ER;
if (isTypeIdInParens()) {
SourceLocation TypeLoc = Tok.getLocation();
ParsedType Ty = ParseTypeName().get();
SourceRange TypeRange(Start, Tok.getLocation());
ER = Actions.ActOnUnaryExprOrTypeTraitExpr(TypeLoc, UETT_AlignOf, true,
Ty.getAsOpaquePtr(), TypeRange);
} else
ER = ParseConstantExpression();
if (getLangOpts().CPlusPlus11)
TryConsumeToken(tok::ellipsis, EllipsisLoc);
return ER;
}
void Parser::ParseAlignmentSpecifier(ParsedAttributes &Attrs,
SourceLocation *EndLoc) {
assert(Tok.isOneOf(tok::kw_alignas, tok::kw__Alignas) &&
"Not an alignment-specifier!");
IdentifierInfo *KWName = Tok.getIdentifierInfo();
SourceLocation KWLoc = ConsumeToken();
BalancedDelimiterTracker T(*this, tok::l_paren);
if (T.expectAndConsume())
return;
SourceLocation EllipsisLoc;
ExprResult ArgExpr = ParseAlignArgument(T.getOpenLocation(), EllipsisLoc);
if (ArgExpr.isInvalid()) {
T.skipToEnd();
return;
}
T.consumeClose();
if (EndLoc)
*EndLoc = T.getCloseLocation();
ArgsVector ArgExprs;
ArgExprs.push_back(ArgExpr.get());
Attrs.addNew(KWName, KWLoc, nullptr, KWLoc, ArgExprs.data(), 1,
AttributeList::AS_Keyword, EllipsisLoc);
}
bool
Parser::DiagnoseMissingSemiAfterTagDefinition(DeclSpec &DS, AccessSpecifier AS,
DeclSpecContext DSContext,
LateParsedAttrList *LateAttrs) {
assert(DS.hasTagDefinition() && "shouldn't call this");
bool EnteringContext = (DSContext == DSC_class || DSContext == DSC_top_level);
if (getLangOpts().CPlusPlus &&
Tok.isOneOf(tok::identifier, tok::coloncolon, tok::kw_decltype,
tok::annot_template_id) &&
TryAnnotateCXXScopeToken(EnteringContext)) {
SkipMalformedDecl();
return true;
}
bool HasScope = Tok.is(tok::annot_cxxscope);
Token AfterScope = HasScope ? NextToken() : Tok;
bool MightBeDeclarator = true;
if (Tok.isOneOf(tok::kw_typename, tok::annot_typename)) {
MightBeDeclarator = false;
} else if (AfterScope.is(tok::annot_template_id)) {
TemplateIdAnnotation *Annot =
static_cast<TemplateIdAnnotation *>(AfterScope.getAnnotationValue());
if (Annot->Kind == TNK_Type_template)
MightBeDeclarator = false;
} else if (AfterScope.is(tok::identifier)) {
const Token &Next = HasScope ? GetLookAheadToken(2) : NextToken();
if (Next.isOneOf(tok::star, tok::amp, tok::ampamp, tok::identifier,
tok::annot_cxxscope, tok::coloncolon)) {
MightBeDeclarator = false;
} else if (HasScope) {
CXXScopeSpec SS;
Actions.RestoreNestedNameSpecifierAnnotation(
Tok.getAnnotationValue(), Tok.getAnnotationRange(), SS);
IdentifierInfo *Name = AfterScope.getIdentifierInfo();
Sema::NameClassification Classification = Actions.ClassifyName(
getCurScope(), SS, Name, AfterScope.getLocation(), Next,
false);
switch (Classification.getKind()) {
case Sema::NC_Error:
SkipMalformedDecl();
return true;
case Sema::NC_Keyword:
case Sema::NC_NestedNameSpecifier:
llvm_unreachable("typo correction and nested name specifiers not "
"possible here");
case Sema::NC_Type:
case Sema::NC_TypeTemplate:
MightBeDeclarator = false;
break;
case Sema::NC_Unknown:
case Sema::NC_Expression:
case Sema::NC_VarTemplate:
case Sema::NC_FunctionTemplate:
break;
}
}
}
if (MightBeDeclarator)
return false;
const PrintingPolicy &PPol = Actions.getASTContext().getPrintingPolicy();
Diag(PP.getLocForEndOfToken(DS.getRepAsDecl()->getLocEnd()),
diag::err_expected_after)
<< DeclSpec::getSpecifierName(DS.getTypeSpecType(), PPol) << tok::semi;
DS.ClearTypeSpecType();
ParsedTemplateInfo NotATemplate;
ParseDeclarationSpecifiers(DS, NotATemplate, AS, DSContext, LateAttrs);
return false;
}
void Parser::ParseDeclarationSpecifiers(DeclSpec &DS,
const ParsedTemplateInfo &TemplateInfo,
AccessSpecifier AS,
DeclSpecContext DSContext,
LateParsedAttrList *LateAttrs) {
if (DS.getSourceRange().isInvalid()) {
DS.SetRangeStart(Tok.getLocation());
DS.SetRangeEnd(SourceLocation());
}
bool EnteringContext = (DSContext == DSC_class || DSContext == DSC_top_level);
bool AttrsLastTime = false;
ParsedAttributesWithRange attrs(AttrFactory);
const PrintingPolicy &Policy = Actions.getPrintingPolicy();
while (1) {
bool isInvalid = false;
bool isStorageClass = false;
const char *PrevSpec = nullptr;
unsigned DiagID = 0;
if (getLangOpts().MSVCCompat && Tok.is(tok::kw__Atomic) &&
DS.getStorageClassSpec() == clang::DeclSpec::SCS_typedef &&
!DS.hasTypeSpecifier() && GetLookAheadToken(1).is(tok::less))
Tok.setKind(tok::identifier);
SourceLocation Loc = Tok.getLocation();
switch (Tok.getKind()) {
default:
DoneWithDeclSpec:
if (!AttrsLastTime)
ProhibitAttributes(attrs);
else {
ProhibitCXX11Attributes(attrs);
DS.takeAttributesFrom(attrs);
}
DS.Finish(Actions, Policy);
return;
case tok::l_square:
case tok::kw_alignas:
if (!getLangOpts().CPlusPlus11 || !isCXX11AttributeSpecifier())
goto DoneWithDeclSpec;
ProhibitAttributes(attrs);
attrs.clear();
attrs.Range = SourceRange();
ParseCXX11Attributes(attrs);
AttrsLastTime = true;
continue;
case tok::code_completion: {
Sema::ParserCompletionContext CCC = Sema::PCC_Namespace;
if (DS.hasTypeSpecifier()) {
bool AllowNonIdentifiers
= (getCurScope()->getFlags() & (Scope::ControlScope |
Scope::BlockScope |
Scope::TemplateParamScope |
Scope::FunctionPrototypeScope |
Scope::AtCatchScope)) == 0;
bool AllowNestedNameSpecifiers
= DSContext == DSC_top_level ||
(DSContext == DSC_class && DS.isFriendSpecified());
Actions.CodeCompleteDeclSpec(getCurScope(), DS,
AllowNonIdentifiers,
AllowNestedNameSpecifiers);
return cutOffParsing();
}
if (getCurScope()->getFnParent() || getCurScope()->getBlockParent())
CCC = Sema::PCC_LocalDeclarationSpecifiers;
else if (TemplateInfo.Kind != ParsedTemplateInfo::NonTemplate)
CCC = DSContext == DSC_class? Sema::PCC_MemberTemplate
: Sema::PCC_Template;
else if (DSContext == DSC_class)
CCC = Sema::PCC_Class;
else if (CurParsedObjCImpl)
CCC = Sema::PCC_ObjCImplementation;
Actions.CodeCompleteOrdinaryName(getCurScope(), CCC);
return cutOffParsing();
}
case tok::coloncolon: if (TryAnnotateCXXScopeToken(EnteringContext)) {
if (!DS.hasTypeSpecifier())
DS.SetTypeSpecError();
goto DoneWithDeclSpec;
}
if (Tok.is(tok::coloncolon)) goto DoneWithDeclSpec;
continue;
case tok::annot_cxxscope: {
if (DS.hasTypeSpecifier() || DS.isTypeAltiVecVector())
goto DoneWithDeclSpec;
CXXScopeSpec SS;
Actions.RestoreNestedNameSpecifierAnnotation(Tok.getAnnotationValue(),
Tok.getAnnotationRange(),
SS);
Token Next = NextToken();
if (Next.is(tok::annot_template_id) &&
static_cast<TemplateIdAnnotation *>(Next.getAnnotationValue())
->Kind == TNK_Type_template) {
TemplateIdAnnotation *TemplateId = takeTemplateIdAnnotation(Next);
if ((DSContext == DSC_top_level || DSContext == DSC_class) &&
TemplateId->Name &&
Actions.isCurrentClassName(*TemplateId->Name, getCurScope(), &SS)) {
if (isConstructorDeclarator(false)) {
goto DoneWithDeclSpec;
}
Diag(TemplateId->TemplateNameLoc,
diag::err_out_of_line_template_id_type_names_constructor)
<< TemplateId->Name << 0 ;
}
DS.getTypeSpecScope() = SS;
ConsumeToken(); assert(Tok.is(tok::annot_template_id) &&
"ParseOptionalCXXScopeSpecifier not working");
AnnotateTemplateIdTokenAsType();
continue;
}
if (Next.is(tok::annot_typename)) {
DS.getTypeSpecScope() = SS;
ConsumeToken(); if (Tok.getAnnotationValue()) {
ParsedType T = getTypeAnnotation(Tok);
isInvalid = DS.SetTypeSpecType(DeclSpec::TST_typename,
Tok.getAnnotationEndLoc(),
PrevSpec, DiagID, T, Policy);
if (isInvalid)
break;
}
else
DS.SetTypeSpecError();
DS.SetRangeEnd(Tok.getAnnotationEndLoc());
ConsumeToken(); }
if (Next.isNot(tok::identifier))
goto DoneWithDeclSpec;
if ((DSContext == DSC_top_level || DSContext == DSC_class) &&
Actions.isCurrentClassName(*Next.getIdentifierInfo(), getCurScope(),
&SS)) {
if (isConstructorDeclarator(false))
goto DoneWithDeclSpec;
Diag(Next.getLocation(),
diag::err_out_of_line_template_id_type_names_constructor)
<< Next.getIdentifierInfo() << 1 ;
}
ParsedType TypeRep =
Actions.getTypeName(*Next.getIdentifierInfo(), Next.getLocation(),
getCurScope(), &SS, false, false, nullptr,
false,
true);
if (!TypeRep) {
ConsumeToken(); ParsedAttributesWithRange Attrs(AttrFactory);
if (ParseImplicitInt(DS, &SS, TemplateInfo, AS, DSContext, Attrs)) {
if (!Attrs.empty()) {
AttrsLastTime = true;
attrs.takeAllFrom(Attrs);
}
continue;
}
goto DoneWithDeclSpec;
}
DS.getTypeSpecScope() = SS;
ConsumeToken();
isInvalid = DS.SetTypeSpecType(DeclSpec::TST_typename, Loc, PrevSpec,
DiagID, TypeRep, Policy);
if (isInvalid)
break;
DS.SetRangeEnd(Tok.getLocation());
ConsumeToken();
continue;
}
case tok::annot_typename: {
if (DS.hasTypeSpecifier() && DS.hasTagDefinition())
goto DoneWithDeclSpec;
if (Tok.getAnnotationValue()) {
ParsedType T = getTypeAnnotation(Tok);
isInvalid = DS.SetTypeSpecType(DeclSpec::TST_typename, Loc, PrevSpec,
DiagID, T, Policy);
} else
DS.SetTypeSpecError();
if (isInvalid)
break;
DS.SetRangeEnd(Tok.getAnnotationEndLoc());
ConsumeToken();
continue;
}
case tok::kw___is_signed:
if (DS.getTypeSpecType() == TST_bool &&
DS.getTypeQualifiers() == DeclSpec::TQ_const &&
DS.getStorageClassSpec() == DeclSpec::SCS_static)
TryKeywordIdentFallback(true);
goto DoneWithDeclSpec;
case tok::kw___super:
case tok::kw_decltype:
case tok::identifier: {
if (DS.hasTypeSpecifier())
goto DoneWithDeclSpec;
if (getLangOpts().CPlusPlus) {
if (TryAnnotateCXXScopeToken(EnteringContext)) {
DS.SetTypeSpecError();
goto DoneWithDeclSpec;
}
if (!Tok.is(tok::identifier))
continue;
}
if (TryAltiVecToken(DS, Loc, PrevSpec, DiagID, isInvalid))
break;
if (DS.isTypeAltiVecVector())
goto DoneWithDeclSpec;
if (DSContext == DSC_objc_method_result && isObjCInstancetype()) {
ParsedType TypeRep = Actions.ActOnObjCInstanceType(Loc);
assert(TypeRep);
isInvalid = DS.SetTypeSpecType(DeclSpec::TST_typename, Loc, PrevSpec,
DiagID, TypeRep, Policy);
if (isInvalid)
break;
DS.SetRangeEnd(Loc);
ConsumeToken();
continue;
}
ParsedType TypeRep =
Actions.getTypeName(*Tok.getIdentifierInfo(),
Tok.getLocation(), getCurScope());
if (!TypeRep && DSContext == DSC_template_type_arg &&
getLangOpts().MSVCCompat && getCurScope()->isTemplateParamScope()) {
TypeRep = Actions.ActOnDelayedDefaultTemplateArg(
*Tok.getIdentifierInfo(), Tok.getLocation());
}
if (!TypeRep) {
ParsedAttributesWithRange Attrs(AttrFactory);
if (ParseImplicitInt(DS, nullptr, TemplateInfo, AS, DSContext, Attrs)) {
if (!Attrs.empty()) {
AttrsLastTime = true;
attrs.takeAllFrom(Attrs);
}
continue;
}
goto DoneWithDeclSpec;
}
if (getLangOpts().CPlusPlus && DSContext == DSC_class &&
Actions.isCurrentClassName(*Tok.getIdentifierInfo(), getCurScope()) &&
isConstructorDeclarator(true))
goto DoneWithDeclSpec;
isInvalid = DS.SetTypeSpecType(DeclSpec::TST_typename, Loc, PrevSpec,
DiagID, TypeRep, Policy);
if (isInvalid)
break;
DS.SetRangeEnd(Tok.getLocation());
ConsumeToken();
if (Tok.is(tok::less) && getLangOpts().ObjC1) {
SourceLocation NewEndLoc;
TypeResult NewTypeRep = parseObjCTypeArgsAndProtocolQualifiers(
Loc, TypeRep, true,
NewEndLoc);
if (NewTypeRep.isUsable()) {
DS.UpdateTypeRep(NewTypeRep.get());
DS.SetRangeEnd(NewEndLoc);
}
}
continue;
}
case tok::annot_template_id: {
TemplateIdAnnotation *TemplateId = takeTemplateIdAnnotation(Tok);
if (TemplateId->Kind != TNK_Type_template) {
goto DoneWithDeclSpec;
}
if (getLangOpts().CPlusPlus && DSContext == DSC_class &&
Actions.isCurrentClassName(*TemplateId->Name, getCurScope()) &&
isConstructorDeclarator(TemplateId->SS.isEmpty()))
goto DoneWithDeclSpec;
AnnotateTemplateIdTokenAsType();
continue;
}
case tok::kw___attribute:
ParseGNUAttributes(DS.getAttributes(), nullptr, LateAttrs);
continue;
case tok::kw___declspec:
ParseMicrosoftDeclSpecs(DS.getAttributes());
continue;
case tok::kw___forceinline: {
isInvalid = DS.setFunctionSpecForceInline(Loc, PrevSpec, DiagID);
IdentifierInfo *AttrName = Tok.getIdentifierInfo();
SourceLocation AttrNameLoc = Tok.getLocation();
DS.getAttributes().addNew(AttrName, AttrNameLoc, nullptr, AttrNameLoc,
nullptr, 0, AttributeList::AS_Keyword);
break;
}
case tok::kw___sptr:
case tok::kw___uptr:
case tok::kw___ptr64:
case tok::kw___ptr32:
case tok::kw___w64:
case tok::kw___cdecl:
case tok::kw___stdcall:
case tok::kw___fastcall:
case tok::kw___thiscall:
case tok::kw___vectorcall:
case tok::kw___unaligned:
ParseMicrosoftTypeAttributes(DS.getAttributes());
continue;
case tok::kw___pascal:
ParseBorlandTypeAttributes(DS.getAttributes());
continue;
case tok::kw___kernel:
ParseOpenCLAttributes(DS.getAttributes());
continue;
case tok::kw__Nonnull:
case tok::kw__Nullable:
case tok::kw__Null_unspecified:
ParseNullabilityTypeSpecifiers(DS.getAttributes());
continue;
case tok::kw___kindof:
DS.getAttributes().addNew(Tok.getIdentifierInfo(), Loc, nullptr, Loc,
nullptr, 0, AttributeList::AS_Keyword);
(void)ConsumeToken();
continue;
case tok::kw_typedef:
isInvalid = DS.SetStorageClassSpec(Actions, DeclSpec::SCS_typedef, Loc,
PrevSpec, DiagID, Policy);
isStorageClass = true;
break;
case tok::kw_extern:
if (DS.getThreadStorageClassSpec() == DeclSpec::TSCS___thread)
Diag(Tok, diag::ext_thread_before) << "extern";
isInvalid = DS.SetStorageClassSpec(Actions, DeclSpec::SCS_extern, Loc,
PrevSpec, DiagID, Policy);
isStorageClass = true;
break;
case tok::kw___private_extern__:
isInvalid = DS.SetStorageClassSpec(Actions, DeclSpec::SCS_private_extern,
Loc, PrevSpec, DiagID, Policy);
isStorageClass = true;
break;
case tok::kw_static:
if (DS.getThreadStorageClassSpec() == DeclSpec::TSCS___thread)
Diag(Tok, diag::ext_thread_before) << "static";
isInvalid = DS.SetStorageClassSpec(Actions, DeclSpec::SCS_static, Loc,
PrevSpec, DiagID, Policy);
isStorageClass = true;
break;
case tok::kw_auto:
if (getLangOpts().CPlusPlus11) {
if (isKnownToBeTypeSpecifier(GetLookAheadToken(1))) {
isInvalid = DS.SetStorageClassSpec(Actions, DeclSpec::SCS_auto, Loc,
PrevSpec, DiagID, Policy);
if (!isInvalid)
Diag(Tok, diag::ext_auto_storage_class)
<< FixItHint::CreateRemoval(DS.getStorageClassSpecLoc());
} else
isInvalid = DS.SetTypeSpecType(DeclSpec::TST_auto, Loc, PrevSpec,
DiagID, Policy);
} else
isInvalid = DS.SetStorageClassSpec(Actions, DeclSpec::SCS_auto, Loc,
PrevSpec, DiagID, Policy);
isStorageClass = true;
break;
case tok::kw___auto_type:
Diag(Tok, diag::ext_auto_type);
isInvalid = DS.SetTypeSpecType(DeclSpec::TST_auto_type, Loc, PrevSpec,
DiagID, Policy);
break;
case tok::kw_register:
isInvalid = DS.SetStorageClassSpec(Actions, DeclSpec::SCS_register, Loc,
PrevSpec, DiagID, Policy);
isStorageClass = true;
break;
case tok::kw_mutable:
isInvalid = DS.SetStorageClassSpec(Actions, DeclSpec::SCS_mutable, Loc,
PrevSpec, DiagID, Policy);
isStorageClass = true;
break;
case tok::kw___thread:
isInvalid = DS.SetStorageClassSpecThread(DeclSpec::TSCS___thread, Loc,
PrevSpec, DiagID);
isStorageClass = true;
break;
case tok::kw_thread_local:
isInvalid = DS.SetStorageClassSpecThread(DeclSpec::TSCS_thread_local, Loc,
PrevSpec, DiagID);
break;
case tok::kw__Thread_local:
isInvalid = DS.SetStorageClassSpecThread(DeclSpec::TSCS__Thread_local,
Loc, PrevSpec, DiagID);
isStorageClass = true;
break;
case tok::kw_inline:
isInvalid = DS.setFunctionSpecInline(Loc, PrevSpec, DiagID);
break;
case tok::kw_virtual:
isInvalid = DS.setFunctionSpecVirtual(Loc, PrevSpec, DiagID);
break;
case tok::kw_explicit:
isInvalid = DS.setFunctionSpecExplicit(Loc, PrevSpec, DiagID);
break;
case tok::kw__Noreturn:
if (!getLangOpts().C11)
Diag(Loc, diag::ext_c11_noreturn);
isInvalid = DS.setFunctionSpecNoreturn(Loc, PrevSpec, DiagID);
break;
case tok::kw__Alignas:
if (!getLangOpts().C11)
Diag(Tok, diag::ext_c11_alignment) << Tok.getName();
ParseAlignmentSpecifier(DS.getAttributes());
continue;
case tok::kw_friend:
if (DSContext == DSC_class)
isInvalid = DS.SetFriendSpec(Loc, PrevSpec, DiagID);
else {
PrevSpec = ""; DiagID = diag::err_friend_invalid_in_context;
isInvalid = true;
}
break;
case tok::kw___module_private__:
isInvalid = DS.setModulePrivateSpec(Loc, PrevSpec, DiagID);
break;
case tok::kw_constexpr:
isInvalid = DS.SetConstexprSpec(Loc, PrevSpec, DiagID);
break;
case tok::kw_concept:
isInvalid = DS.SetConceptSpec(Loc, PrevSpec, DiagID);
break;
case tok::kw_short:
isInvalid = DS.SetTypeSpecWidth(DeclSpec::TSW_short, Loc, PrevSpec,
DiagID, Policy);
break;
case tok::kw_long:
if (DS.getTypeSpecWidth() != DeclSpec::TSW_long)
isInvalid = DS.SetTypeSpecWidth(DeclSpec::TSW_long, Loc, PrevSpec,
DiagID, Policy);
else
isInvalid = DS.SetTypeSpecWidth(DeclSpec::TSW_longlong, Loc, PrevSpec,
DiagID, Policy);
break;
case tok::kw___int64:
isInvalid = DS.SetTypeSpecWidth(DeclSpec::TSW_longlong, Loc, PrevSpec,
DiagID, Policy);
break;
case tok::kw_signed:
isInvalid = DS.SetTypeSpecSign(DeclSpec::TSS_signed, Loc, PrevSpec,
DiagID);
break;
case tok::kw_unsigned:
isInvalid = DS.SetTypeSpecSign(DeclSpec::TSS_unsigned, Loc, PrevSpec,
DiagID);
break;
case tok::kw__Complex:
isInvalid = DS.SetTypeSpecComplex(DeclSpec::TSC_complex, Loc, PrevSpec,
DiagID);
break;
case tok::kw__Imaginary:
isInvalid = DS.SetTypeSpecComplex(DeclSpec::TSC_imaginary, Loc, PrevSpec,
DiagID);
break;
case tok::kw_void:
isInvalid = DS.SetTypeSpecType(DeclSpec::TST_void, Loc, PrevSpec,
DiagID, Policy);
break;
case tok::kw_char:
isInvalid = DS.SetTypeSpecType(DeclSpec::TST_char, Loc, PrevSpec,
DiagID, Policy);
break;
case tok::kw_int:
isInvalid = DS.SetTypeSpecType(DeclSpec::TST_int, Loc, PrevSpec,
DiagID, Policy);
break;
case tok::kw___int128:
isInvalid = DS.SetTypeSpecType(DeclSpec::TST_int128, Loc, PrevSpec,
DiagID, Policy);
break;
case tok::kw_half:
isInvalid = DS.SetTypeSpecType(DeclSpec::TST_half, Loc, PrevSpec,
DiagID, Policy);
break;
case tok::kw_float:
isInvalid = DS.SetTypeSpecType(DeclSpec::TST_float, Loc, PrevSpec,
DiagID, Policy);
break;
case tok::kw_double:
isInvalid = DS.SetTypeSpecType(DeclSpec::TST_double, Loc, PrevSpec,
DiagID, Policy);
break;
case tok::kw_wchar_t:
isInvalid = DS.SetTypeSpecType(DeclSpec::TST_wchar, Loc, PrevSpec,
DiagID, Policy);
break;
case tok::kw_char16_t:
isInvalid = DS.SetTypeSpecType(DeclSpec::TST_char16, Loc, PrevSpec,
DiagID, Policy);
break;
case tok::kw_char32_t:
isInvalid = DS.SetTypeSpecType(DeclSpec::TST_char32, Loc, PrevSpec,
DiagID, Policy);
break;
case tok::kw_bool:
case tok::kw__Bool:
if (Tok.is(tok::kw_bool) &&
DS.getTypeSpecType() != DeclSpec::TST_unspecified &&
DS.getStorageClassSpec() == DeclSpec::SCS_typedef) {
PrevSpec = ""; DiagID = diag::err_bool_redeclaration;
Tok.setKind(tok::identifier);
isInvalid = true;
} else {
isInvalid = DS.SetTypeSpecType(DeclSpec::TST_bool, Loc, PrevSpec,
DiagID, Policy);
}
break;
case tok::kw__Decimal32:
isInvalid = DS.SetTypeSpecType(DeclSpec::TST_decimal32, Loc, PrevSpec,
DiagID, Policy);
break;
case tok::kw__Decimal64:
isInvalid = DS.SetTypeSpecType(DeclSpec::TST_decimal64, Loc, PrevSpec,
DiagID, Policy);
break;
case tok::kw__Decimal128:
isInvalid = DS.SetTypeSpecType(DeclSpec::TST_decimal128, Loc, PrevSpec,
DiagID, Policy);
break;
case tok::kw___vector:
isInvalid = DS.SetTypeAltiVecVector(true, Loc, PrevSpec, DiagID, Policy);
break;
case tok::kw___pixel:
isInvalid = DS.SetTypeAltiVecPixel(true, Loc, PrevSpec, DiagID, Policy);
break;
case tok::kw___bool:
isInvalid = DS.SetTypeAltiVecBool(true, Loc, PrevSpec, DiagID, Policy);
break;
case tok::kw_pipe:
if (!getLangOpts().OpenCL || (getLangOpts().OpenCLVersion < 200)) {
Tok.getIdentifierInfo()->revertTokenIDToIdentifier();
goto DoneWithDeclSpec;
}
isInvalid = DS.SetTypePipe(true, Loc, PrevSpec, DiagID, Policy);
break;
case tok::kw___unknown_anytype:
isInvalid = DS.SetTypeSpecType(TST_unknown_anytype, Loc,
PrevSpec, DiagID, Policy);
break;
case tok::kw_class:
case tok::kw_struct:
case tok::kw___interface:
case tok::kw_union: {
tok::TokenKind Kind = Tok.getKind();
ConsumeToken();
ParsedAttributesWithRange Attributes(AttrFactory);
ParseClassSpecifier(Kind, Loc, DS, TemplateInfo, AS,
EnteringContext, DSContext, Attributes);
if (!Attributes.empty()) {
AttrsLastTime = true;
attrs.takeAllFrom(Attributes);
}
continue;
}
case tok::kw_enum:
ConsumeToken();
ParseEnumSpecifier(Loc, DS, TemplateInfo, AS, DSContext);
continue;
case tok::kw_const:
isInvalid = DS.SetTypeQual(DeclSpec::TQ_const, Loc, PrevSpec, DiagID,
getLangOpts());
break;
case tok::kw_volatile:
isInvalid = DS.SetTypeQual(DeclSpec::TQ_volatile, Loc, PrevSpec, DiagID,
getLangOpts());
break;
case tok::kw_restrict:
isInvalid = DS.SetTypeQual(DeclSpec::TQ_restrict, Loc, PrevSpec, DiagID,
getLangOpts());
break;
case tok::kw_typename:
if (TryAnnotateTypeOrScopeToken()) {
DS.SetTypeSpecError();
goto DoneWithDeclSpec;
}
if (!Tok.is(tok::kw_typename))
continue;
break;
case tok::kw_typeof:
ParseTypeofSpecifier(DS);
continue;
case tok::annot_decltype:
ParseDecltypeSpecifier(DS);
continue;
case tok::kw___underlying_type:
ParseUnderlyingTypeSpecifier(DS);
continue;
case tok::kw__Atomic:
if (NextToken().is(tok::l_paren)) {
ParseAtomicSpecifier(DS);
continue;
}
isInvalid = DS.SetTypeQual(DeclSpec::TQ_atomic, Loc, PrevSpec, DiagID,
getLangOpts());
break;
case tok::kw___generic:
if (Actions.getLangOpts().OpenCLVersion < 200) {
DiagID = diag::err_opencl_unknown_type_specifier;
PrevSpec = Tok.getIdentifierInfo()->getNameStart();
isInvalid = true;
break;
};
case tok::kw___private:
case tok::kw___global:
case tok::kw___local:
case tok::kw___constant:
case tok::kw___read_only:
case tok::kw___write_only:
case tok::kw___read_write:
ParseOpenCLQualifiers(DS.getAttributes());
break;
case tok::less:
if (DS.hasTypeSpecifier() || !getLangOpts().ObjC1)
goto DoneWithDeclSpec;
SourceLocation StartLoc = Tok.getLocation();
SourceLocation EndLoc;
TypeResult Type = parseObjCProtocolQualifierType(EndLoc);
if (Type.isUsable()) {
if (DS.SetTypeSpecType(DeclSpec::TST_typename, StartLoc, StartLoc,
PrevSpec, DiagID, Type.get(),
Actions.getASTContext().getPrintingPolicy()))
Diag(StartLoc, DiagID) << PrevSpec;
DS.SetRangeEnd(EndLoc);
} else {
DS.SetTypeSpecError();
}
continue;
}
if (isInvalid) {
assert(PrevSpec && "Method did not return previous specifier!");
assert(DiagID);
if (DiagID == diag::ext_duplicate_declspec)
Diag(Tok, DiagID)
<< PrevSpec << FixItHint::CreateRemoval(Tok.getLocation());
else if (DiagID == diag::err_opencl_unknown_type_specifier)
Diag(Tok, DiagID) << PrevSpec << isStorageClass;
else
Diag(Tok, DiagID) << PrevSpec;
}
DS.SetRangeEnd(Tok.getLocation());
if (DiagID != diag::err_bool_redeclaration)
ConsumeToken();
AttrsLastTime = false;
}
}
void Parser::ParseStructDeclaration(
ParsingDeclSpec &DS,
llvm::function_ref<void(ParsingFieldDeclarator &)> FieldsCallback) {
if (Tok.is(tok::kw___extension__)) {
ExtensionRAIIObject O(Diags); ConsumeToken();
return ParseStructDeclaration(DS, FieldsCallback);
}
ParseSpecifierQualifierList(DS);
if (Tok.is(tok::semi)) {
Decl *TheDecl = Actions.ParsedFreeStandingDeclSpec(getCurScope(), AS_none,
DS);
DS.complete(TheDecl);
return;
}
bool FirstDeclarator = true;
SourceLocation CommaLoc;
while (1) {
ParsingFieldDeclarator DeclaratorInfo(*this, DS);
DeclaratorInfo.D.setCommaLoc(CommaLoc);
if (!FirstDeclarator)
MaybeParseGNUAttributes(DeclaratorInfo.D);
if (Tok.isNot(tok::colon)) {
ColonProtectionRAIIObject X(*this);
ParseDeclarator(DeclaratorInfo.D);
} else
DeclaratorInfo.D.SetIdentifier(nullptr, Tok.getLocation());
if (TryConsumeToken(tok::colon)) {
ExprResult Res(ParseConstantExpression());
if (Res.isInvalid())
SkipUntil(tok::semi, StopBeforeMatch);
else
DeclaratorInfo.BitfieldSize = Res.get();
}
MaybeParseGNUAttributes(DeclaratorInfo.D);
FieldsCallback(DeclaratorInfo);
if (!TryConsumeToken(tok::comma, CommaLoc))
return;
FirstDeclarator = false;
}
}
void Parser::ParseStructUnionBody(SourceLocation RecordLoc,
unsigned TagType, Decl *TagDecl) {
PrettyDeclStackTraceEntry CrashInfo(Actions, TagDecl, RecordLoc,
"parsing struct/union body");
assert(!getLangOpts().CPlusPlus && "C++ declarations not supported");
BalancedDelimiterTracker T(*this, tok::l_brace);
if (T.consumeOpen())
return;
ParseScope StructScope(this, Scope::ClassScope|Scope::DeclScope);
Actions.ActOnTagStartDefinition(getCurScope(), TagDecl);
SmallVector<Decl *, 32> FieldDecls;
while (!tryParseMisplacedModuleImport() && Tok.isNot(tok::r_brace) &&
Tok.isNot(tok::eof)) {
if (Tok.is(tok::semi)) {
ConsumeExtraSemi(InsideStruct, TagType);
continue;
}
if (Tok.is(tok::kw__Static_assert)) {
SourceLocation DeclEnd;
ParseStaticAssertDeclaration(DeclEnd);
continue;
}
if (Tok.is(tok::annot_pragma_pack)) {
HandlePragmaPack();
continue;
}
if (Tok.is(tok::annot_pragma_align)) {
HandlePragmaAlign();
continue;
}
if (Tok.is(tok::annot_pragma_openmp)) {
auto Res = ParseOpenMPDeclarativeDirective();
assert(!Res);
(void)Res;
continue;
}
if (!Tok.is(tok::at)) {
auto CFieldCallback = [&](ParsingFieldDeclarator &FD) {
Decl *Field =
Actions.ActOnField(getCurScope(), TagDecl,
FD.D.getDeclSpec().getSourceRange().getBegin(),
FD.D, FD.BitfieldSize);
FieldDecls.push_back(Field);
FD.complete(Field);
};
ParsingDeclSpec DS(*this);
ParseStructDeclaration(DS, CFieldCallback);
} else { ConsumeToken();
if (!Tok.isObjCAtKeyword(tok::objc_defs)) {
Diag(Tok, diag::err_unexpected_at);
SkipUntil(tok::semi);
continue;
}
ConsumeToken();
ExpectAndConsume(tok::l_paren);
if (!Tok.is(tok::identifier)) {
Diag(Tok, diag::err_expected) << tok::identifier;
SkipUntil(tok::semi);
continue;
}
SmallVector<Decl *, 16> Fields;
Actions.ActOnDefs(getCurScope(), TagDecl, Tok.getLocation(),
Tok.getIdentifierInfo(), Fields);
FieldDecls.insert(FieldDecls.end(), Fields.begin(), Fields.end());
ConsumeToken();
ExpectAndConsume(tok::r_paren);
}
if (TryConsumeToken(tok::semi))
continue;
if (Tok.is(tok::r_brace)) {
ExpectAndConsume(tok::semi, diag::ext_expected_semi_decl_list);
break;
}
ExpectAndConsume(tok::semi, diag::err_expected_semi_decl_list);
SkipUntil(tok::r_brace, StopAtSemi | StopBeforeMatch);
TryConsumeToken(tok::semi);
}
T.consumeClose();
ParsedAttributes attrs(AttrFactory);
MaybeParseGNUAttributes(attrs);
Actions.ActOnFields(getCurScope(),
RecordLoc, TagDecl, FieldDecls,
T.getOpenLocation(), T.getCloseLocation(),
attrs.getList());
StructScope.Exit();
Actions.ActOnTagFinishDefinition(getCurScope(), TagDecl, T.getRange());
}
void Parser::ParseEnumSpecifier(SourceLocation StartLoc, DeclSpec &DS,
const ParsedTemplateInfo &TemplateInfo,
AccessSpecifier AS, DeclSpecContext DSC) {
if (Tok.is(tok::code_completion)) {
Actions.CodeCompleteTag(getCurScope(), DeclSpec::TST_enum);
return cutOffParsing();
}
ParsedAttributesWithRange attrs(AttrFactory);
MaybeParseGNUAttributes(attrs);
MaybeParseCXX11Attributes(attrs);
MaybeParseMicrosoftDeclSpecs(attrs);
SourceLocation ScopedEnumKWLoc;
bool IsScopedUsingClassTag = false;
if (Tok.isOneOf(tok::kw_class, tok::kw_struct)) {
Diag(Tok, getLangOpts().CPlusPlus11 ? diag::warn_cxx98_compat_scoped_enum
: diag::ext_scoped_enum);
IsScopedUsingClassTag = Tok.is(tok::kw_class);
ScopedEnumKWLoc = ConsumeToken();
ProhibitAttributes(attrs);
MaybeParseGNUAttributes(attrs);
MaybeParseCXX11Attributes(attrs);
MaybeParseMicrosoftDeclSpecs(attrs);
}
bool shouldDelayDiagsInTag =
(TemplateInfo.Kind == ParsedTemplateInfo::ExplicitInstantiation ||
TemplateInfo.Kind == ParsedTemplateInfo::ExplicitSpecialization);
SuppressAccessChecks diagsFromTag(*this, shouldDelayDiagsInTag);
bool AllowDeclaration = DSC != DSC_trailing;
bool AllowFixedUnderlyingType = AllowDeclaration &&
(getLangOpts().CPlusPlus11 || getLangOpts().MicrosoftExt ||
getLangOpts().ObjC2);
CXXScopeSpec &SS = DS.getTypeSpecScope();
if (getLangOpts().CPlusPlus) {
ColonProtectionRAIIObject X(*this, AllowFixedUnderlyingType);
CXXScopeSpec Spec;
if (ParseOptionalCXXScopeSpecifier(Spec, nullptr,
true))
return;
if (Spec.isSet() && Tok.isNot(tok::identifier)) {
Diag(Tok, diag::err_expected) << tok::identifier;
if (Tok.isNot(tok::l_brace)) {
SkipUntil(tok::comma, StopAtSemi);
return;
}
}
SS = Spec;
}
if (Tok.isNot(tok::identifier) && Tok.isNot(tok::l_brace) &&
!(AllowFixedUnderlyingType && Tok.is(tok::colon))) {
Diag(Tok, diag::err_expected_either) << tok::identifier << tok::l_brace;
SkipUntil(tok::comma, StopAtSemi);
return;
}
IdentifierInfo *Name = nullptr;
SourceLocation NameLoc;
if (Tok.is(tok::identifier)) {
Name = Tok.getIdentifierInfo();
NameLoc = ConsumeToken();
}
if (!Name && ScopedEnumKWLoc.isValid()) {
Diag(Tok, diag::err_scoped_enum_missing_identifier);
ScopedEnumKWLoc = SourceLocation();
IsScopedUsingClassTag = false;
}
if (shouldDelayDiagsInTag)
diagsFromTag.done();
TypeResult BaseType;
bool CanBeBitfield = getCurScope()->getFlags() & Scope::ClassScope;
if (AllowFixedUnderlyingType && Tok.is(tok::colon)) {
bool PossibleBitfield = false;
if (CanBeBitfield) {
EnterExpressionEvaluationContext Unevaluated(Actions,
Sema::ConstantEvaluated);
TPResult TPR = isExpressionOrTypeSpecifierSimple(NextToken().getKind());
if (TPR == TPResult::True)
PossibleBitfield = true;
else if (TPR == TPResult::False &&
GetLookAheadToken(2).getKind() == tok::semi) {
ConsumeToken();
} else {
TentativeParsingAction TPA(*this);
ConsumeToken();
if ((getLangOpts().CPlusPlus &&
isCXXDeclarationSpecifier(TPResult::True) != TPResult::True) ||
(!getLangOpts().CPlusPlus && !isDeclarationSpecifier(true))) {
PossibleBitfield = true;
TPA.Revert();
} else {
TPA.Commit();
}
}
} else {
ConsumeToken();
}
if (!PossibleBitfield) {
SourceRange Range;
BaseType = ParseTypeName(&Range);
if (getLangOpts().CPlusPlus11) {
Diag(StartLoc, diag::warn_cxx98_compat_enum_fixed_underlying_type);
} else if (!getLangOpts().ObjC2) {
if (getLangOpts().CPlusPlus)
Diag(StartLoc, diag::ext_cxx11_enum_fixed_underlying_type) << Range;
else
Diag(StartLoc, diag::ext_c_enum_fixed_underlying_type) << Range;
}
}
}
Sema::TagUseKind TUK;
if (!AllowDeclaration) {
TUK = Sema::TUK_Reference;
} else if (Tok.is(tok::l_brace)) {
if (DS.isFriendSpecified()) {
Diag(Tok.getLocation(), diag::err_friend_decl_defines_type)
<< SourceRange(DS.getFriendSpecLoc());
ConsumeBrace();
SkipUntil(tok::r_brace, StopAtSemi);
TUK = Sema::TUK_Friend;
} else {
TUK = Sema::TUK_Definition;
}
} else if (!isTypeSpecifier(DSC) &&
(Tok.is(tok::semi) ||
(Tok.isAtStartOfLine() &&
!isValidAfterTypeSpecifier(CanBeBitfield)))) {
TUK = DS.isFriendSpecified() ? Sema::TUK_Friend : Sema::TUK_Declaration;
if (Tok.isNot(tok::semi)) {
ExpectAndConsume(tok::semi, diag::err_expected_after, "enum");
PP.EnterToken(Tok);
Tok.setKind(tok::semi);
}
} else {
TUK = Sema::TUK_Reference;
}
if (TUK == Sema::TUK_Reference && shouldDelayDiagsInTag) {
diagsFromTag.redelay();
}
MultiTemplateParamsArg TParams;
if (TemplateInfo.Kind != ParsedTemplateInfo::NonTemplate &&
TUK != Sema::TUK_Reference) {
if (!getLangOpts().CPlusPlus11 || !SS.isSet()) {
Diag(Tok, diag::err_enum_template);
SkipUntil(tok::comma, StopAtSemi);
return;
}
if (TemplateInfo.Kind == ParsedTemplateInfo::ExplicitInstantiation) {
DS.SetTypeSpecError();
Diag(StartLoc, diag::err_explicit_instantiation_enum);
return;
}
assert(TemplateInfo.TemplateParams && "no template parameters");
TParams = MultiTemplateParamsArg(TemplateInfo.TemplateParams->data(),
TemplateInfo.TemplateParams->size());
}
if (TUK == Sema::TUK_Reference)
ProhibitAttributes(attrs);
if (!Name && TUK != Sema::TUK_Definition) {
Diag(Tok, diag::err_enumerator_unnamed_no_def);
SkipUntil(tok::comma, StopAtSemi);
return;
}
handleDeclspecAlignBeforeClassKey(attrs, DS, TUK);
Sema::SkipBodyInfo SkipBody;
if (!Name && TUK == Sema::TUK_Definition && Tok.is(tok::l_brace) &&
NextToken().is(tok::identifier))
SkipBody = Actions.shouldSkipAnonEnumBody(getCurScope(),
NextToken().getIdentifierInfo(),
NextToken().getLocation());
bool Owned = false;
bool IsDependent = false;
const char *PrevSpec = nullptr;
unsigned DiagID;
Decl *TagDecl = Actions.ActOnTag(getCurScope(), DeclSpec::TST_enum, TUK,
StartLoc, SS, Name, NameLoc, attrs.getList(),
AS, DS.getModulePrivateSpecLoc(), TParams,
Owned, IsDependent, ScopedEnumKWLoc,
IsScopedUsingClassTag, BaseType,
DSC == DSC_type_specifier, &SkipBody);
if (SkipBody.ShouldSkip) {
assert(TUK == Sema::TUK_Definition && "can only skip a definition");
BalancedDelimiterTracker T(*this, tok::l_brace);
T.consumeOpen();
T.skipToEnd();
if (DS.SetTypeSpecType(DeclSpec::TST_enum, StartLoc,
NameLoc.isValid() ? NameLoc : StartLoc,
PrevSpec, DiagID, TagDecl, Owned,
Actions.getASTContext().getPrintingPolicy()))
Diag(StartLoc, DiagID) << PrevSpec;
return;
}
if (IsDependent) {
if (!Name) {
DS.SetTypeSpecError();
Diag(Tok, diag::err_expected_type_name_after_typename);
return;
}
TypeResult Type = Actions.ActOnDependentTag(
getCurScope(), DeclSpec::TST_enum, TUK, SS, Name, StartLoc, NameLoc);
if (Type.isInvalid()) {
DS.SetTypeSpecError();
return;
}
if (DS.SetTypeSpecType(DeclSpec::TST_typename, StartLoc,
NameLoc.isValid() ? NameLoc : StartLoc,
PrevSpec, DiagID, Type.get(),
Actions.getASTContext().getPrintingPolicy()))
Diag(StartLoc, DiagID) << PrevSpec;
return;
}
if (!TagDecl) {
if (Tok.is(tok::l_brace) && TUK != Sema::TUK_Reference) {
ConsumeBrace();
SkipUntil(tok::r_brace, StopAtSemi);
}
DS.SetTypeSpecError();
return;
}
if (Tok.is(tok::l_brace) && TUK != Sema::TUK_Reference)
ParseEnumBody(StartLoc, TagDecl);
if (DS.SetTypeSpecType(DeclSpec::TST_enum, StartLoc,
NameLoc.isValid() ? NameLoc : StartLoc,
PrevSpec, DiagID, TagDecl, Owned,
Actions.getASTContext().getPrintingPolicy()))
Diag(StartLoc, DiagID) << PrevSpec;
}
void Parser::ParseEnumBody(SourceLocation StartLoc, Decl *EnumDecl) {
ParseScope EnumScope(this, Scope::DeclScope | Scope::EnumScope);
Actions.ActOnTagStartDefinition(getCurScope(), EnumDecl);
BalancedDelimiterTracker T(*this, tok::l_brace);
T.consumeOpen();
if (Tok.is(tok::r_brace) && !getLangOpts().CPlusPlus)
Diag(Tok, diag::error_empty_enum);
SmallVector<Decl *, 32> EnumConstantDecls;
SmallVector<SuppressAccessChecks, 32> EnumAvailabilityDiags;
Decl *LastEnumConstDecl = nullptr;
while (Tok.isNot(tok::r_brace)) {
if (Tok.isNot(tok::identifier)) {
Diag(Tok.getLocation(), diag::err_expected) << tok::identifier;
if (SkipUntil(tok::comma, tok::r_brace, StopBeforeMatch) &&
TryConsumeToken(tok::comma))
continue;
break;
}
IdentifierInfo *Ident = Tok.getIdentifierInfo();
SourceLocation IdentLoc = ConsumeToken();
ParsedAttributesWithRange attrs(AttrFactory);
MaybeParseGNUAttributes(attrs);
ProhibitAttributes(attrs); if (getLangOpts().CPlusPlus11 && isCXX11AttributeSpecifier()) {
if (!getLangOpts().CPlusPlus1z)
Diag(Tok.getLocation(), diag::warn_cxx14_compat_attribute)
<< 1 ;
ParseCXX11Attributes(attrs);
}
SourceLocation EqualLoc;
ExprResult AssignedVal;
EnumAvailabilityDiags.emplace_back(*this);
if (TryConsumeToken(tok::equal, EqualLoc)) {
AssignedVal = ParseConstantExpression();
if (AssignedVal.isInvalid())
SkipUntil(tok::comma, tok::r_brace, StopBeforeMatch);
}
Decl *EnumConstDecl = Actions.ActOnEnumConstant(getCurScope(), EnumDecl,
LastEnumConstDecl,
IdentLoc, Ident,
attrs.getList(), EqualLoc,
AssignedVal.get());
EnumAvailabilityDiags.back().done();
EnumConstantDecls.push_back(EnumConstDecl);
LastEnumConstDecl = EnumConstDecl;
if (Tok.is(tok::identifier)) {
SourceLocation Loc = PP.getLocForEndOfToken(PrevTokLocation);
Diag(Loc, diag::err_enumerator_list_missing_comma)
<< FixItHint::CreateInsertion(Loc, ", ");
continue;
}
SourceLocation CommaLoc;
if (Tok.isNot(tok::r_brace) && !TryConsumeToken(tok::comma, CommaLoc)) {
if (EqualLoc.isValid())
Diag(Tok.getLocation(), diag::err_expected_either) << tok::r_brace
<< tok::comma;
else
Diag(Tok.getLocation(), diag::err_expected_end_of_enumerator);
if (SkipUntil(tok::comma, tok::r_brace, StopBeforeMatch)) {
if (TryConsumeToken(tok::comma, CommaLoc))
continue;
} else {
break;
}
}
if (Tok.is(tok::r_brace) && CommaLoc.isValid()) {
if (!getLangOpts().C99 && !getLangOpts().CPlusPlus11)
Diag(CommaLoc, getLangOpts().CPlusPlus ?
diag::ext_enumerator_list_comma_cxx :
diag::ext_enumerator_list_comma_c)
<< FixItHint::CreateRemoval(CommaLoc);
else if (getLangOpts().CPlusPlus11)
Diag(CommaLoc, diag::warn_cxx98_compat_enumerator_list_comma)
<< FixItHint::CreateRemoval(CommaLoc);
break;
}
}
T.consumeClose();
ParsedAttributes attrs(AttrFactory);
MaybeParseGNUAttributes(attrs);
Actions.ActOnEnumBody(StartLoc, T.getRange(),
EnumDecl, EnumConstantDecls,
getCurScope(),
attrs.getList());
assert(EnumConstantDecls.size() == EnumAvailabilityDiags.size());
for (size_t i = 0, e = EnumConstantDecls.size(); i != e; ++i) {
ParsingDeclRAIIObject PD(*this, ParsingDeclRAIIObject::NoParent);
EnumAvailabilityDiags[i].redelay();
PD.complete(EnumConstantDecls[i]);
}
EnumScope.Exit();
Actions.ActOnTagFinishDefinition(getCurScope(), EnumDecl, T.getRange());
bool CanBeBitfield = getCurScope()->getFlags() & Scope::ClassScope;
if (!isValidAfterTypeSpecifier(CanBeBitfield)) {
ExpectAndConsume(tok::semi, diag::err_expected_after, "enum");
PP.EnterToken(Tok);
Tok.setKind(tok::semi);
}
}
bool Parser::isTypeQualifier() const {
switch (Tok.getKind()) {
default: return false;
case tok::kw_const:
case tok::kw_volatile:
case tok::kw_restrict:
case tok::kw___private:
case tok::kw___local:
case tok::kw___global:
case tok::kw___constant:
case tok::kw___generic:
case tok::kw___read_only:
case tok::kw___read_write:
case tok::kw___write_only:
return true;
}
}
bool Parser::isKnownToBeTypeSpecifier(const Token &Tok) const {
switch (Tok.getKind()) {
default: return false;
case tok::kw_short:
case tok::kw_long:
case tok::kw___int64:
case tok::kw___int128:
case tok::kw_signed:
case tok::kw_unsigned:
case tok::kw__Complex:
case tok::kw__Imaginary:
case tok::kw_void:
case tok::kw_char:
case tok::kw_wchar_t:
case tok::kw_char16_t:
case tok::kw_char32_t:
case tok::kw_int:
case tok::kw_half:
case tok::kw_float:
case tok::kw_double:
case tok::kw_bool:
case tok::kw__Bool:
case tok::kw__Decimal32:
case tok::kw__Decimal64:
case tok::kw__Decimal128:
case tok::kw___vector:
case tok::kw_class:
case tok::kw_struct:
case tok::kw___interface:
case tok::kw_union:
case tok::kw_enum:
case tok::annot_typename:
return true;
}
}
bool Parser::isTypeSpecifierQualifier() {
switch (Tok.getKind()) {
default: return false;
case tok::identifier: if (TryAltiVecVectorToken())
return true;
case tok::kw_typename: if (TryAnnotateTypeOrScopeToken())
return true;
if (Tok.is(tok::identifier))
return false;
return isTypeSpecifierQualifier();
case tok::coloncolon: if (NextToken().is(tok::kw_new) || NextToken().is(tok::kw_delete)) return false;
if (TryAnnotateTypeOrScopeToken())
return true;
return isTypeSpecifierQualifier();
case tok::kw___attribute:
case tok::kw_typeof:
case tok::kw_short:
case tok::kw_long:
case tok::kw___int64:
case tok::kw___int128:
case tok::kw_signed:
case tok::kw_unsigned:
case tok::kw__Complex:
case tok::kw__Imaginary:
case tok::kw_void:
case tok::kw_char:
case tok::kw_wchar_t:
case tok::kw_char16_t:
case tok::kw_char32_t:
case tok::kw_int:
case tok::kw_half:
case tok::kw_float:
case tok::kw_double:
case tok::kw_bool:
case tok::kw__Bool:
case tok::kw__Decimal32:
case tok::kw__Decimal64:
case tok::kw__Decimal128:
case tok::kw___vector:
case tok::kw_class:
case tok::kw_struct:
case tok::kw___interface:
case tok::kw_union:
case tok::kw_enum:
case tok::kw_const:
case tok::kw_volatile:
case tok::kw_restrict:
case tok::kw___unknown_anytype:
case tok::annot_typename:
return true;
case tok::less:
return getLangOpts().ObjC1;
case tok::kw___cdecl:
case tok::kw___stdcall:
case tok::kw___fastcall:
case tok::kw___thiscall:
case tok::kw___vectorcall:
case tok::kw___w64:
case tok::kw___ptr64:
case tok::kw___ptr32:
case tok::kw___pascal:
case tok::kw___unaligned:
case tok::kw__Nonnull:
case tok::kw__Nullable:
case tok::kw__Null_unspecified:
case tok::kw___kindof:
case tok::kw___private:
case tok::kw___local:
case tok::kw___global:
case tok::kw___constant:
case tok::kw___generic:
case tok::kw___read_only:
case tok::kw___read_write:
case tok::kw___write_only:
return true;
case tok::kw__Atomic:
return true;
}
}
bool Parser::isDeclarationSpecifier(bool DisambiguatingWithExpression) {
switch (Tok.getKind()) {
default: return false;
case tok::kw_pipe:
return getLangOpts().OpenCL && (getLangOpts().OpenCLVersion >= 200);
case tok::identifier: if (getLangOpts().ObjC1 && NextToken().is(tok::period))
return false;
if (TryAltiVecVectorToken())
return true;
case tok::kw_decltype: case tok::kw_typename: if (TryAnnotateTypeOrScopeToken())
return true;
if (Tok.is(tok::identifier))
return false;
if (DisambiguatingWithExpression &&
isStartOfObjCClassMessageMissingOpenBracket())
return false;
return isDeclarationSpecifier();
case tok::coloncolon: if (NextToken().is(tok::kw_new) || NextToken().is(tok::kw_delete)) return false;
if (TryAnnotateTypeOrScopeToken())
return true;
return isDeclarationSpecifier();
case tok::kw_typedef:
case tok::kw_extern:
case tok::kw___private_extern__:
case tok::kw_static:
case tok::kw_auto:
case tok::kw___auto_type:
case tok::kw_register:
case tok::kw___thread:
case tok::kw_thread_local:
case tok::kw__Thread_local:
case tok::kw___module_private__:
case tok::kw___unknown_anytype:
case tok::kw_short:
case tok::kw_long:
case tok::kw___int64:
case tok::kw___int128:
case tok::kw_signed:
case tok::kw_unsigned:
case tok::kw__Complex:
case tok::kw__Imaginary:
case tok::kw_void:
case tok::kw_char:
case tok::kw_wchar_t:
case tok::kw_char16_t:
case tok::kw_char32_t:
case tok::kw_int:
case tok::kw_half:
case tok::kw_float:
case tok::kw_double:
case tok::kw_bool:
case tok::kw__Bool:
case tok::kw__Decimal32:
case tok::kw__Decimal64:
case tok::kw__Decimal128:
case tok::kw___vector:
case tok::kw_class:
case tok::kw_struct:
case tok::kw_union:
case tok::kw___interface:
case tok::kw_enum:
case tok::kw_const:
case tok::kw_volatile:
case tok::kw_restrict:
case tok::kw_inline:
case tok::kw_virtual:
case tok::kw_explicit:
case tok::kw__Noreturn:
case tok::kw__Alignas:
case tok::kw_friend:
case tok::kw__Static_assert:
case tok::kw_typeof:
case tok::kw___attribute:
case tok::annot_decltype:
case tok::kw_constexpr:
case tok::kw_concept:
case tok::kw__Atomic:
return true;
case tok::less:
return getLangOpts().ObjC1;
case tok::annot_typename:
return !DisambiguatingWithExpression ||
!isStartOfObjCClassMessageMissingOpenBracket();
case tok::kw___declspec:
case tok::kw___cdecl:
case tok::kw___stdcall:
case tok::kw___fastcall:
case tok::kw___thiscall:
case tok::kw___vectorcall:
case tok::kw___w64:
case tok::kw___sptr:
case tok::kw___uptr:
case tok::kw___ptr64:
case tok::kw___ptr32:
case tok::kw___forceinline:
case tok::kw___pascal:
case tok::kw___unaligned:
case tok::kw__Nonnull:
case tok::kw__Nullable:
case tok::kw__Null_unspecified:
case tok::kw___kindof:
case tok::kw___private:
case tok::kw___local:
case tok::kw___global:
case tok::kw___constant:
case tok::kw___generic:
case tok::kw___read_only:
case tok::kw___read_write:
case tok::kw___write_only:
return true;
}
}
bool Parser::isConstructorDeclarator(bool IsUnqualified) {
TentativeParsingAction TPA(*this);
CXXScopeSpec SS;
if (ParseOptionalCXXScopeSpecifier(SS, nullptr,
true)) {
TPA.Revert();
return false;
}
if (Tok.isOneOf(tok::identifier, tok::annot_template_id)) {
ConsumeToken();
} else {
TPA.Revert();
return false;
}
if (Tok.isNot(tok::l_paren)) {
TPA.Revert();
return false;
}
ConsumeParen();
if (Tok.is(tok::r_paren) ||
(Tok.is(tok::ellipsis) && NextToken().is(tok::r_paren))) {
TPA.Revert();
return true;
}
if (getLangOpts().CPlusPlus11 &&
isCXX11AttributeSpecifier( false,
true)) {
TPA.Revert();
return true;
}
DeclaratorScopeObj DeclScopeObj(*this, SS);
if (SS.isSet() && Actions.ShouldEnterDeclaratorScope(getCurScope(), SS))
DeclScopeObj.EnterDeclaratorScope();
ParsedAttributes Attrs(AttrFactory);
MaybeParseMicrosoftAttributes(Attrs);
bool IsConstructor = false;
if (isDeclarationSpecifier())
IsConstructor = true;
else if (Tok.is(tok::identifier) ||
(Tok.is(tok::annot_cxxscope) && NextToken().is(tok::identifier))) {
if (Tok.is(tok::annot_cxxscope))
ConsumeToken();
ConsumeToken();
switch (Tok.getKind()) {
case tok::l_paren:
case tok::l_square:
case tok::coloncolon:
break;
case tok::r_paren:
if (NextToken().is(tok::colon) || NextToken().is(tok::kw_try)) {
IsConstructor = true;
}
if (NextToken().is(tok::semi) || NextToken().is(tok::l_brace)) {
IsConstructor = IsUnqualified;
}
break;
default:
IsConstructor = true;
break;
}
}
TPA.Revert();
return IsConstructor;
}
void Parser::ParseTypeQualifierListOpt(DeclSpec &DS, unsigned AttrReqs,
bool AtomicAllowed,
bool IdentifierRequired) {
if (getLangOpts().CPlusPlus11 && (AttrReqs & AR_CXX11AttributesParsed) &&
isCXX11AttributeSpecifier()) {
ParsedAttributesWithRange attrs(AttrFactory);
ParseCXX11Attributes(attrs);
DS.takeAttributesFrom(attrs);
}
SourceLocation EndLoc;
while (1) {
bool isInvalid = false;
const char *PrevSpec = nullptr;
unsigned DiagID = 0;
SourceLocation Loc = Tok.getLocation();
switch (Tok.getKind()) {
case tok::code_completion:
Actions.CodeCompleteTypeQualifiers(DS);
return cutOffParsing();
case tok::kw_const:
isInvalid = DS.SetTypeQual(DeclSpec::TQ_const , Loc, PrevSpec, DiagID,
getLangOpts());
break;
case tok::kw_volatile:
isInvalid = DS.SetTypeQual(DeclSpec::TQ_volatile, Loc, PrevSpec, DiagID,
getLangOpts());
break;
case tok::kw_restrict:
isInvalid = DS.SetTypeQual(DeclSpec::TQ_restrict, Loc, PrevSpec, DiagID,
getLangOpts());
break;
case tok::kw__Atomic:
if (!AtomicAllowed)
goto DoneWithTypeQuals;
isInvalid = DS.SetTypeQual(DeclSpec::TQ_atomic, Loc, PrevSpec, DiagID,
getLangOpts());
break;
case tok::kw___private:
case tok::kw___global:
case tok::kw___local:
case tok::kw___constant:
case tok::kw___generic:
case tok::kw___read_only:
case tok::kw___write_only:
case tok::kw___read_write:
ParseOpenCLQualifiers(DS.getAttributes());
break;
case tok::kw___uptr:
if ((AttrReqs & AR_DeclspecAttributesParsed) && !getLangOpts().CPlusPlus &&
IdentifierRequired && DS.isEmpty() && NextToken().is(tok::semi)) {
if (TryKeywordIdentFallback(false))
continue;
}
case tok::kw___sptr:
case tok::kw___w64:
case tok::kw___ptr64:
case tok::kw___ptr32:
case tok::kw___cdecl:
case tok::kw___stdcall:
case tok::kw___fastcall:
case tok::kw___thiscall:
case tok::kw___vectorcall:
case tok::kw___unaligned:
if (AttrReqs & AR_DeclspecAttributesParsed) {
ParseMicrosoftTypeAttributes(DS.getAttributes());
continue;
}
goto DoneWithTypeQuals;
case tok::kw___pascal:
if (AttrReqs & AR_VendorAttributesParsed) {
ParseBorlandTypeAttributes(DS.getAttributes());
continue;
}
goto DoneWithTypeQuals;
case tok::kw__Nonnull:
case tok::kw__Nullable:
case tok::kw__Null_unspecified:
ParseNullabilityTypeSpecifiers(DS.getAttributes());
continue;
case tok::kw___kindof:
DS.getAttributes().addNew(Tok.getIdentifierInfo(), Loc, nullptr, Loc,
nullptr, 0, AttributeList::AS_Keyword);
(void)ConsumeToken();
continue;
case tok::kw___attribute:
if (AttrReqs & AR_GNUAttributesParsedAndRejected)
Diag(Tok, diag::err_attributes_not_allowed);
if (AttrReqs & AR_GNUAttributesParsed ||
AttrReqs & AR_GNUAttributesParsedAndRejected) {
ParseGNUAttributes(DS.getAttributes());
continue; }
default:
DoneWithTypeQuals:
DS.Finish(Actions, Actions.getASTContext().getPrintingPolicy());
if (EndLoc.isValid())
DS.SetRangeEnd(EndLoc);
return;
}
if (isInvalid) {
assert(PrevSpec && "Method did not return previous specifier!");
Diag(Tok, DiagID) << PrevSpec;
}
EndLoc = ConsumeToken();
}
}
void Parser::ParseDeclarator(Declarator &D) {
ParseDeclaratorInternal(D, &Parser::ParseDirectDeclarator);
}
static bool isPtrOperatorToken(tok::TokenKind Kind, const LangOptions &Lang,
unsigned TheContext) {
if (Kind == tok::star || Kind == tok::caret)
return true;
if ((Kind == tok::kw_pipe) && Lang.OpenCL && (Lang.OpenCLVersion >= 200))
return true;
if (!Lang.CPlusPlus)
return false;
if (Kind == tok::amp)
return true;
if (Kind == tok::ampamp)
return Lang.CPlusPlus11 || (TheContext != Declarator::ConversionIdContext &&
TheContext != Declarator::CXXNewContext);
return false;
}
static bool isPipeDeclerator(const Declarator &D) {
const unsigned NumTypes = D.getNumTypeObjects();
for (unsigned Idx = 0; Idx != NumTypes; ++Idx)
if (DeclaratorChunk::Pipe == D.getTypeObject(Idx).Kind)
return true;
return false;
}
void Parser::ParseDeclaratorInternal(Declarator &D,
DirectDeclParseFunction DirectDeclParser) {
if (Diags.hasAllExtensionsSilenced())
D.setExtension();
if (getLangOpts().CPlusPlus &&
(Tok.is(tok::coloncolon) ||
(Tok.is(tok::identifier) &&
(NextToken().is(tok::coloncolon) || NextToken().is(tok::less))) ||
Tok.is(tok::annot_cxxscope))) {
bool EnteringContext = D.getContext() == Declarator::FileContext ||
D.getContext() == Declarator::MemberContext;
CXXScopeSpec SS;
ParseOptionalCXXScopeSpecifier(SS, nullptr, EnteringContext);
if (SS.isNotEmpty()) {
if (Tok.isNot(tok::star)) {
if (D.mayHaveIdentifier())
D.getCXXScopeSpec() = SS;
else
AnnotateScopeToken(SS, true);
if (DirectDeclParser)
(this->*DirectDeclParser)(D);
return;
}
SourceLocation Loc = ConsumeToken();
D.SetRangeEnd(Loc);
DeclSpec DS(AttrFactory);
ParseTypeQualifierListOpt(DS);
D.ExtendWithDeclSpec(DS);
ParseDeclaratorInternal(D, DirectDeclParser);
D.AddTypeInfo(DeclaratorChunk::getMemberPointer(SS,DS.getTypeQualifiers(),
DS.getLocEnd()),
DS.getAttributes(),
SourceLocation());
return;
}
}
tok::TokenKind Kind = Tok.getKind();
if (D.getDeclSpec().isTypeSpecPipe() && !isPipeDeclerator(D)) {
DeclSpec &DS = D.getMutableDeclSpec();
D.AddTypeInfo(
DeclaratorChunk::getPipe(DS.getTypeQualifiers(), DS.getPipeLoc()),
DS.getAttributes(), SourceLocation());
}
if (!isPtrOperatorToken(Kind, getLangOpts(), D.getContext())) {
if (DirectDeclParser)
(this->*DirectDeclParser)(D);
return;
}
SourceLocation Loc = ConsumeToken(); D.SetRangeEnd(Loc);
if (Kind == tok::star || Kind == tok::caret) {
DeclSpec DS(AttrFactory);
unsigned Reqs = AR_CXX11AttributesParsed | AR_DeclspecAttributesParsed |
((D.getContext() != Declarator::CXXNewContext)
? AR_GNUAttributesParsed
: AR_GNUAttributesParsedAndRejected);
ParseTypeQualifierListOpt(DS, Reqs, true, !D.mayOmitIdentifier());
D.ExtendWithDeclSpec(DS);
ParseDeclaratorInternal(D, DirectDeclParser);
if (Kind == tok::star)
D.AddTypeInfo(DeclaratorChunk::getPointer(DS.getTypeQualifiers(), Loc,
DS.getConstSpecLoc(),
DS.getVolatileSpecLoc(),
DS.getRestrictSpecLoc(),
DS.getAtomicSpecLoc()),
DS.getAttributes(),
SourceLocation());
else
D.AddTypeInfo(DeclaratorChunk::getBlockPointer(DS.getTypeQualifiers(),
Loc),
DS.getAttributes(),
SourceLocation());
} else {
DeclSpec DS(AttrFactory);
if (Kind == tok::ampamp)
Diag(Loc, getLangOpts().CPlusPlus11 ?
diag::warn_cxx98_compat_rvalue_reference :
diag::ext_rvalue_reference);
ParseTypeQualifierListOpt(DS);
D.ExtendWithDeclSpec(DS);
if (DS.getTypeQualifiers() != DeclSpec::TQ_unspecified) {
if (DS.getTypeQualifiers() & DeclSpec::TQ_const)
Diag(DS.getConstSpecLoc(),
diag::err_invalid_reference_qualifier_application) << "const";
if (DS.getTypeQualifiers() & DeclSpec::TQ_volatile)
Diag(DS.getVolatileSpecLoc(),
diag::err_invalid_reference_qualifier_application) << "volatile";
if (DS.getTypeQualifiers() & DeclSpec::TQ_atomic)
Diag(DS.getAtomicSpecLoc(),
diag::err_invalid_reference_qualifier_application) << "_Atomic";
}
ParseDeclaratorInternal(D, DirectDeclParser);
if (D.getNumTypeObjects() > 0) {
DeclaratorChunk& InnerChunk = D.getTypeObject(D.getNumTypeObjects() - 1);
if (InnerChunk.Kind == DeclaratorChunk::Reference) {
if (const IdentifierInfo *II = D.getIdentifier())
Diag(InnerChunk.Loc, diag::err_illegal_decl_reference_to_reference)
<< II;
else
Diag(InnerChunk.Loc, diag::err_illegal_decl_reference_to_reference)
<< "type name";
}
}
D.AddTypeInfo(DeclaratorChunk::getReference(DS.getTypeQualifiers(), Loc,
Kind == tok::amp),
DS.getAttributes(),
SourceLocation());
}
}
static SourceLocation getMissingDeclaratorIdLoc(Declarator &D,
SourceLocation Loc) {
if (D.getName().StartLocation.isInvalid() &&
D.getName().EndLocation.isValid())
return D.getName().EndLocation;
return Loc;
}
void Parser::ParseDirectDeclarator(Declarator &D) {
DeclaratorScopeObj DeclScopeObj(*this, D.getCXXScopeSpec());
if (getLangOpts().CPlusPlus && D.mayHaveIdentifier()) {
ColonProtectionRAIIObject X(*this,
D.getContext() == Declarator::MemberContext ||
(D.getContext() == Declarator::ForContext &&
getLangOpts().CPlusPlus11));
if (D.getCXXScopeSpec().isEmpty()) {
bool EnteringContext = D.getContext() == Declarator::FileContext ||
D.getContext() == Declarator::MemberContext;
ParseOptionalCXXScopeSpecifier(D.getCXXScopeSpec(), nullptr,
EnteringContext);
}
if (D.getCXXScopeSpec().isValid()) {
if (Actions.ShouldEnterDeclaratorScope(getCurScope(),
D.getCXXScopeSpec()))
DeclScopeObj.EnterDeclaratorScope();
}
if (Tok.is(tok::ellipsis) && D.getCXXScopeSpec().isEmpty() &&
!((D.getContext() == Declarator::PrototypeContext ||
D.getContext() == Declarator::LambdaExprParameterContext ||
D.getContext() == Declarator::BlockLiteralContext) &&
NextToken().is(tok::r_paren) &&
!D.hasGroupingParens() &&
!Actions.containsUnexpandedParameterPacks(D) &&
D.getDeclSpec().getTypeSpecType() != TST_auto)) {
SourceLocation EllipsisLoc = ConsumeToken();
if (isPtrOperatorToken(Tok.getKind(), getLangOpts(), D.getContext())) {
ParseDeclarator(D);
if (EllipsisLoc.isValid())
DiagnoseMisplacedEllipsisInDeclarator(EllipsisLoc, D);
return;
} else
D.setEllipsisLoc(EllipsisLoc);
}
if (Tok.isOneOf(tok::identifier, tok::kw_operator, tok::annot_template_id,
tok::tilde)) {
bool AllowConstructorName;
if (D.getDeclSpec().hasTypeSpecifier())
AllowConstructorName = false;
else if (D.getCXXScopeSpec().isSet())
AllowConstructorName =
(D.getContext() == Declarator::FileContext ||
D.getContext() == Declarator::MemberContext);
else
AllowConstructorName = (D.getContext() == Declarator::MemberContext);
SourceLocation TemplateKWLoc;
bool HadScope = D.getCXXScopeSpec().isValid();
if (ParseUnqualifiedId(D.getCXXScopeSpec(),
true,
true, AllowConstructorName,
nullptr, TemplateKWLoc, D.getName()) ||
D.getCXXScopeSpec().isInvalid()) {
D.SetIdentifier(nullptr, Tok.getLocation());
D.setInvalidType(true);
} else {
if (!HadScope && D.getCXXScopeSpec().isValid() &&
Actions.ShouldEnterDeclaratorScope(getCurScope(),
D.getCXXScopeSpec()))
DeclScopeObj.EnterDeclaratorScope();
if (D.getSourceRange().getBegin().isInvalid())
D.SetRangeBegin(D.getName().getSourceRange().getBegin());
D.SetRangeEnd(D.getName().getSourceRange().getEnd());
}
goto PastIdentifier;
}
if (D.getCXXScopeSpec().isNotEmpty()) {
Diag(PP.getLocForEndOfToken(D.getCXXScopeSpec().getEndLoc()),
diag::err_expected_unqualified_id)
<< 1;
D.SetIdentifier(nullptr, Tok.getLocation());
goto PastIdentifier;
}
} else if (Tok.is(tok::identifier) && D.mayHaveIdentifier()) {
assert(!getLangOpts().CPlusPlus &&
"There's a C++-specific check for tok::identifier above");
assert(Tok.getIdentifierInfo() && "Not an identifier?");
D.SetIdentifier(Tok.getIdentifierInfo(), Tok.getLocation());
D.SetRangeEnd(Tok.getLocation());
ConsumeToken();
goto PastIdentifier;
} else if (Tok.is(tok::identifier) && D.diagnoseIdentifier()) {
if (D.getContext() != Declarator::TrailingReturnContext ||
!isCXX11VirtSpecifier(Tok)) {
Diag(Tok.getLocation(), diag::err_unexpected_unqualified_id)
<< FixItHint::CreateRemoval(Tok.getLocation());
D.SetIdentifier(nullptr, Tok.getLocation());
ConsumeToken();
goto PastIdentifier;
}
}
if (Tok.is(tok::l_paren)) {
ParseParenDeclarator(D);
if (D.getCXXScopeSpec().isSet()) {
if (!D.isInvalidType() &&
Actions.ShouldEnterDeclaratorScope(getCurScope(),
D.getCXXScopeSpec()))
DeclScopeObj.EnterDeclaratorScope();
}
} else if (D.mayOmitIdentifier()) {
D.SetIdentifier(nullptr, Tok.getLocation());
if (D.hasEllipsis() && D.hasGroupingParens())
Diag(PP.getLocForEndOfToken(D.getEllipsisLoc()),
diag::ext_abstract_pack_declarator_parens);
} else {
if (Tok.getKind() == tok::annot_pragma_parser_crash)
LLVM_BUILTIN_TRAP;
if (Tok.is(tok::l_square))
return ParseMisplacedBracketDeclarator(D);
if (D.getContext() == Declarator::MemberContext) {
Diag(getMissingDeclaratorIdLoc(D, Tok.getLocation()),
diag::err_expected_member_name_or_semi)
<< (D.getDeclSpec().isEmpty() ? SourceRange()
: D.getDeclSpec().getSourceRange());
} else if (getLangOpts().CPlusPlus) {
if (Tok.isOneOf(tok::period, tok::arrow))
Diag(Tok, diag::err_invalid_operator_on_type) << Tok.is(tok::arrow);
else {
SourceLocation Loc = D.getCXXScopeSpec().getEndLoc();
if (Tok.isAtStartOfLine() && Loc.isValid())
Diag(PP.getLocForEndOfToken(Loc), diag::err_expected_unqualified_id)
<< getLangOpts().CPlusPlus;
else
Diag(getMissingDeclaratorIdLoc(D, Tok.getLocation()),
diag::err_expected_unqualified_id)
<< getLangOpts().CPlusPlus;
}
} else {
Diag(getMissingDeclaratorIdLoc(D, Tok.getLocation()),
diag::err_expected_either)
<< tok::identifier << tok::l_paren;
}
D.SetIdentifier(nullptr, Tok.getLocation());
D.setInvalidType(true);
}
PastIdentifier:
assert(D.isPastIdentifier() &&
"Haven't past the location of the identifier yet?");
if (D.hasName() && !D.getNumTypeObjects())
MaybeParseCXX11Attributes(D);
while (1) {
if (Tok.is(tok::l_paren)) {
ParseScope PrototypeScope(this,
Scope::FunctionPrototypeScope|Scope::DeclScope|
(D.isFunctionDeclaratorAFunctionDeclaration()
? Scope::FunctionDeclarationScope : 0));
bool IsAmbiguous = false;
if (getLangOpts().CPlusPlus && D.mayBeFollowedByCXXDirectInit()) {
TentativelyDeclaredIdentifiers.push_back(D.getIdentifier());
bool IsFunctionDecl = isCXXFunctionDeclarator(&IsAmbiguous);
TentativelyDeclaredIdentifiers.pop_back();
if (!IsFunctionDecl)
break;
}
ParsedAttributes attrs(AttrFactory);
BalancedDelimiterTracker T(*this, tok::l_paren);
T.consumeOpen();
ParseFunctionDeclarator(D, attrs, T, IsAmbiguous);
PrototypeScope.Exit();
} else if (Tok.is(tok::l_square)) {
ParseBracketDeclarator(D);
} else {
break;
}
}
}
void Parser::ParseParenDeclarator(Declarator &D) {
BalancedDelimiterTracker T(*this, tok::l_paren);
T.consumeOpen();
assert(!D.isPastIdentifier() && "Should be called before passing identifier");
ParsedAttributes attrs(AttrFactory);
bool RequiresArg = false;
if (Tok.is(tok::kw___attribute)) {
ParseGNUAttributes(attrs);
RequiresArg = true;
}
ParseMicrosoftTypeAttributes(attrs);
if (Tok.is(tok::kw___pascal))
ParseBorlandTypeAttributes(attrs);
bool isGrouping;
if (!D.mayOmitIdentifier()) {
isGrouping = true;
} else if (Tok.is(tok::r_paren) || (getLangOpts().CPlusPlus && Tok.is(tok::ellipsis) &&
NextToken().is(tok::r_paren)) || isDeclarationSpecifier() || isCXX11AttributeSpecifier()) { isGrouping = false;
} else {
isGrouping = true;
}
if (isGrouping) {
SourceLocation EllipsisLoc = D.getEllipsisLoc();
D.setEllipsisLoc(SourceLocation());
bool hadGroupingParens = D.hasGroupingParens();
D.setGroupingParens(true);
ParseDeclaratorInternal(D, &Parser::ParseDirectDeclarator);
T.consumeClose();
D.AddTypeInfo(DeclaratorChunk::getParen(T.getOpenLocation(),
T.getCloseLocation()),
attrs, T.getCloseLocation());
D.setGroupingParens(hadGroupingParens);
if (EllipsisLoc.isValid())
DiagnoseMisplacedEllipsisInDeclarator(EllipsisLoc, D);
return;
}
D.SetIdentifier(nullptr, Tok.getLocation());
ParseScope PrototypeScope(this,
Scope::FunctionPrototypeScope | Scope::DeclScope |
(D.isFunctionDeclaratorAFunctionDeclaration()
? Scope::FunctionDeclarationScope : 0));
ParseFunctionDeclarator(D, attrs, T, false, RequiresArg);
PrototypeScope.Exit();
}
void Parser::ParseFunctionDeclarator(Declarator &D,
ParsedAttributes &FirstArgAttrs,
BalancedDelimiterTracker &Tracker,
bool IsAmbiguous,
bool RequiresArg) {
assert(getCurScope()->isFunctionPrototypeScope() &&
"Should call from a Function scope");
assert(D.isPastIdentifier() && "Should not call before identifier!");
bool HasProto = false;
SmallVector<DeclaratorChunk::ParamInfo, 16> ParamInfo;
SourceLocation EllipsisLoc;
DeclSpec DS(AttrFactory);
bool RefQualifierIsLValueRef = true;
SourceLocation RefQualifierLoc;
SourceLocation ConstQualifierLoc;
SourceLocation VolatileQualifierLoc;
SourceLocation RestrictQualifierLoc;
ExceptionSpecificationType ESpecType = EST_None;
SourceRange ESpecRange;
SmallVector<ParsedType, 2> DynamicExceptions;
SmallVector<SourceRange, 2> DynamicExceptionRanges;
ExprResult NoexceptExpr;
CachedTokens *ExceptionSpecTokens = nullptr;
ParsedAttributes FnAttrs(AttrFactory);
TypeResult TrailingReturnType;
SourceLocation StartLoc, LocalEndLoc, EndLoc;
SourceLocation LParenLoc, RParenLoc;
LParenLoc = Tracker.getOpenLocation();
StartLoc = LParenLoc;
if (isFunctionDeclaratorIdentifierList()) {
if (RequiresArg)
Diag(Tok, diag::err_argument_required_after_attribute);
ParseFunctionDeclaratorIdentifierList(D, ParamInfo);
Tracker.consumeClose();
RParenLoc = Tracker.getCloseLocation();
LocalEndLoc = RParenLoc;
EndLoc = RParenLoc;
} else {
if (Tok.isNot(tok::r_paren))
ParseParameterDeclarationClause(D, FirstArgAttrs, ParamInfo,
EllipsisLoc);
else if (RequiresArg)
Diag(Tok, diag::err_argument_required_after_attribute);
HasProto = ParamInfo.size() || getLangOpts().CPlusPlus;
Tracker.consumeClose();
RParenLoc = Tracker.getCloseLocation();
LocalEndLoc = RParenLoc;
EndLoc = RParenLoc;
if (getLangOpts().CPlusPlus) {
ParseTypeQualifierListOpt(DS, AR_NoAttributesParsed,
false);
if (!DS.getSourceRange().getEnd().isInvalid()) {
EndLoc = DS.getSourceRange().getEnd();
ConstQualifierLoc = DS.getConstSpecLoc();
VolatileQualifierLoc = DS.getVolatileSpecLoc();
RestrictQualifierLoc = DS.getRestrictSpecLoc();
}
if (ParseRefQualifier(RefQualifierIsLValueRef, RefQualifierLoc))
EndLoc = RefQualifierLoc;
bool IsCXX11MemberFunction =
getLangOpts().CPlusPlus11 &&
D.getDeclSpec().getStorageClassSpec() != DeclSpec::SCS_typedef &&
(D.getContext() == Declarator::MemberContext
? !D.getDeclSpec().isFriendSpecified()
: D.getContext() == Declarator::FileContext &&
D.getCXXScopeSpec().isValid() &&
Actions.CurContext->isRecord());
Sema::CXXThisScopeRAII ThisScope(Actions,
dyn_cast<CXXRecordDecl>(Actions.CurContext),
DS.getTypeQualifiers() |
(D.getDeclSpec().isConstexprSpecified() &&
!getLangOpts().CPlusPlus14
? Qualifiers::Const : 0),
IsCXX11MemberFunction);
bool Delayed = D.isFirstDeclarationOfMember() &&
D.isFunctionDeclaratorAFunctionDeclaration();
if (Delayed && Actions.isLibstdcxxEagerExceptionSpecHack(D) &&
GetLookAheadToken(0).is(tok::kw_noexcept) &&
GetLookAheadToken(1).is(tok::l_paren) &&
GetLookAheadToken(2).is(tok::kw_noexcept) &&
GetLookAheadToken(3).is(tok::l_paren) &&
GetLookAheadToken(4).is(tok::identifier) &&
GetLookAheadToken(4).getIdentifierInfo()->isStr("swap")) {
Delayed = false;
}
ESpecType = tryParseExceptionSpecification(Delayed,
ESpecRange,
DynamicExceptions,
DynamicExceptionRanges,
NoexceptExpr,
ExceptionSpecTokens);
if (ESpecType != EST_None)
EndLoc = ESpecRange.getEnd();
MaybeParseCXX11Attributes(FnAttrs);
LocalEndLoc = EndLoc;
if (getLangOpts().CPlusPlus11 && Tok.is(tok::arrow)) {
Diag(Tok, diag::warn_cxx98_compat_trailing_return_type);
if (D.getDeclSpec().getTypeSpecType() == TST_auto)
StartLoc = D.getDeclSpec().getTypeSpecTypeLoc();
LocalEndLoc = Tok.getLocation();
SourceRange Range;
TrailingReturnType = ParseTrailingReturnType(Range);
EndLoc = Range.getEnd();
}
}
}
D.AddTypeInfo(DeclaratorChunk::getFunction(HasProto,
IsAmbiguous,
LParenLoc,
ParamInfo.data(), ParamInfo.size(),
EllipsisLoc, RParenLoc,
DS.getTypeQualifiers(),
RefQualifierIsLValueRef,
RefQualifierLoc, ConstQualifierLoc,
VolatileQualifierLoc,
RestrictQualifierLoc,
SourceLocation(),
ESpecType, ESpecRange,
DynamicExceptions.data(),
DynamicExceptionRanges.data(),
DynamicExceptions.size(),
NoexceptExpr.isUsable() ?
NoexceptExpr.get() : nullptr,
ExceptionSpecTokens,
StartLoc, LocalEndLoc, D,
TrailingReturnType),
FnAttrs, EndLoc);
}
bool Parser::ParseRefQualifier(bool &RefQualifierIsLValueRef,
SourceLocation &RefQualifierLoc) {
if (Tok.isOneOf(tok::amp, tok::ampamp)) {
Diag(Tok, getLangOpts().CPlusPlus11 ?
diag::warn_cxx98_compat_ref_qualifier :
diag::ext_ref_qualifier);
RefQualifierIsLValueRef = Tok.is(tok::amp);
RefQualifierLoc = ConsumeToken();
return true;
}
return false;
}
bool Parser::isFunctionDeclaratorIdentifierList() {
return !getLangOpts().CPlusPlus
&& Tok.is(tok::identifier)
&& !TryAltiVecVectorToken()
&& (TryAnnotateTypeOrScopeToken() || !Tok.is(tok::annot_typename))
&& (NextToken().is(tok::comma) || NextToken().is(tok::r_paren));
}
void Parser::ParseFunctionDeclaratorIdentifierList(
Declarator &D,
SmallVectorImpl<DeclaratorChunk::ParamInfo> &ParamInfo) {
if (!D.getIdentifier())
Diag(Tok, diag::ext_ident_list_in_param);
llvm::SmallSet<const IdentifierInfo*, 16> ParamsSoFar;
do {
if (Tok.isNot(tok::identifier)) {
Diag(Tok, diag::err_expected) << tok::identifier;
SkipUntil(tok::r_paren, StopAtSemi | StopBeforeMatch);
ParamInfo.clear();
return;
}
IdentifierInfo *ParmII = Tok.getIdentifierInfo();
if (Actions.getTypeName(*ParmII, Tok.getLocation(), getCurScope()))
Diag(Tok, diag::err_unexpected_typedef_ident) << ParmII;
if (!ParamsSoFar.insert(ParmII).second) {
Diag(Tok, diag::err_param_redefinition) << ParmII;
} else {
ParamInfo.push_back(DeclaratorChunk::ParamInfo(ParmII,
Tok.getLocation(),
nullptr));
}
ConsumeToken();
} while (TryConsumeToken(tok::comma));
}
void Parser::ParseParameterDeclarationClause(
Declarator &D,
ParsedAttributes &FirstArgAttrs,
SmallVectorImpl<DeclaratorChunk::ParamInfo> &ParamInfo,
SourceLocation &EllipsisLoc) {
do {
if (TryConsumeToken(tok::ellipsis, EllipsisLoc))
break;
DeclSpec DS(AttrFactory);
MaybeParseCXX11Attributes(DS.getAttributes());
MaybeParseMicrosoftAttributes(DS.getAttributes());
SourceLocation DSStart = Tok.getLocation();
DS.takeAttributesFrom(FirstArgAttrs);
ParseDeclarationSpecifiers(DS);
Declarator ParmDeclarator(DS,
D.getContext() == Declarator::LambdaExprContext ?
Declarator::LambdaExprParameterContext :
Declarator::PrototypeContext);
ParseDeclarator(ParmDeclarator);
MaybeParseGNUAttributes(ParmDeclarator);
IdentifierInfo *ParmII = ParmDeclarator.getIdentifier();
CachedTokens *DefArgToks = nullptr;
if (DS.isEmpty() && ParmDeclarator.getIdentifier() == nullptr &&
ParmDeclarator.getNumTypeObjects() == 0) {
Diag(DSStart, diag::err_missing_param);
} else {
if (Tok.is(tok::ellipsis) &&
(NextToken().isNot(tok::r_paren) ||
(!ParmDeclarator.getEllipsisLoc().isValid() &&
!Actions.isUnexpandedParameterPackPermitted())) &&
Actions.containsUnexpandedParameterPacks(ParmDeclarator))
DiagnoseMisplacedEllipsisInDeclarator(ConsumeToken(), ParmDeclarator);
Decl *Param = Actions.ActOnParamDeclarator(getCurScope(), ParmDeclarator);
if (Tok.is(tok::equal)) {
SourceLocation EqualLoc = Tok.getLocation();
if (D.getContext() == Declarator::MemberContext) {
DefArgToks = new CachedTokens;
SourceLocation ArgStartLoc = NextToken().getLocation();
if (!ConsumeAndStoreInitializer(*DefArgToks, CIK_DefaultArgument)) {
delete DefArgToks;
DefArgToks = nullptr;
Actions.ActOnParamDefaultArgumentError(Param, EqualLoc);
} else {
Actions.ActOnParamUnparsedDefaultArgument(Param, EqualLoc,
ArgStartLoc);
}
} else {
ConsumeToken();
EnterExpressionEvaluationContext Eval(Actions,
Sema::PotentiallyEvaluatedIfUsed,
Param);
ExprResult DefArgResult;
if (getLangOpts().CPlusPlus11 && Tok.is(tok::l_brace)) {
Diag(Tok, diag::warn_cxx98_compat_generalized_initializer_lists);
DefArgResult = ParseBraceInitializer();
} else
DefArgResult = ParseAssignmentExpression();
DefArgResult = Actions.CorrectDelayedTyposInExpr(DefArgResult);
if (DefArgResult.isInvalid()) {
Actions.ActOnParamDefaultArgumentError(Param, EqualLoc);
SkipUntil(tok::comma, tok::r_paren, StopAtSemi | StopBeforeMatch);
} else {
Actions.ActOnParamDefaultArgument(Param, EqualLoc,
DefArgResult.get());
}
}
}
ParamInfo.push_back(DeclaratorChunk::ParamInfo(ParmII,
ParmDeclarator.getIdentifierLoc(),
Param, DefArgToks));
}
if (TryConsumeToken(tok::ellipsis, EllipsisLoc)) {
if (!getLangOpts().CPlusPlus) {
Diag(EllipsisLoc, diag::err_missing_comma_before_ellipsis)
<< FixItHint::CreateInsertion(EllipsisLoc, ", ");
} else if (ParmDeclarator.getEllipsisLoc().isValid() ||
Actions.containsUnexpandedParameterPacks(ParmDeclarator)) {
SourceLocation ParmEllipsis = ParmDeclarator.getEllipsisLoc();
Diag(EllipsisLoc, diag::warn_misplaced_ellipsis_vararg)
<< ParmEllipsis.isValid() << ParmEllipsis;
if (ParmEllipsis.isValid()) {
Diag(ParmEllipsis,
diag::note_misplaced_ellipsis_vararg_existing_ellipsis);
} else {
Diag(ParmDeclarator.getIdentifierLoc(),
diag::note_misplaced_ellipsis_vararg_add_ellipsis)
<< FixItHint::CreateInsertion(ParmDeclarator.getIdentifierLoc(),
"...")
<< !ParmDeclarator.hasName();
}
Diag(EllipsisLoc, diag::note_misplaced_ellipsis_vararg_add_comma)
<< FixItHint::CreateInsertion(EllipsisLoc, ", ");
}
break;
}
} while (TryConsumeToken(tok::comma));
}
void Parser::ParseBracketDeclarator(Declarator &D) {
if (CheckProhibitedCXX11Attribute())
return;
BalancedDelimiterTracker T(*this, tok::l_square);
T.consumeOpen();
if (Tok.getKind() == tok::r_square) {
T.consumeClose();
ParsedAttributes attrs(AttrFactory);
MaybeParseCXX11Attributes(attrs);
D.AddTypeInfo(DeclaratorChunk::getArray(0, false, false, nullptr,
T.getOpenLocation(),
T.getCloseLocation()),
attrs, T.getCloseLocation());
return;
} else if (Tok.getKind() == tok::numeric_constant &&
GetLookAheadToken(1).is(tok::r_square)) {
ExprResult ExprRes(Actions.ActOnNumericConstant(Tok, getCurScope()));
ConsumeToken();
T.consumeClose();
ParsedAttributes attrs(AttrFactory);
MaybeParseCXX11Attributes(attrs);
D.AddTypeInfo(DeclaratorChunk::getArray(0, false, false,
ExprRes.get(),
T.getOpenLocation(),
T.getCloseLocation()),
attrs, T.getCloseLocation());
return;
}
SourceLocation StaticLoc;
TryConsumeToken(tok::kw_static, StaticLoc);
DeclSpec DS(AttrFactory);
ParseTypeQualifierListOpt(DS, AR_CXX11AttributesParsed);
if (!StaticLoc.isValid())
TryConsumeToken(tok::kw_static, StaticLoc);
bool isStar = false;
ExprResult NumElements;
if (Tok.is(tok::star) && GetLookAheadToken(1).is(tok::r_square)) {
ConsumeToken();
if (StaticLoc.isValid()) {
Diag(StaticLoc, diag::err_unspecified_vla_size_with_static);
StaticLoc = SourceLocation(); }
isStar = true;
} else if (Tok.isNot(tok::r_square)) {
if (getLangOpts().CPlusPlus) {
NumElements = ParseConstantExpression();
} else {
EnterExpressionEvaluationContext Unevaluated(Actions,
Sema::ConstantEvaluated);
NumElements =
Actions.CorrectDelayedTyposInExpr(ParseAssignmentExpression());
}
} else {
if (StaticLoc.isValid()) {
Diag(StaticLoc, diag::err_unspecified_size_with_static);
StaticLoc = SourceLocation(); }
}
if (NumElements.isInvalid()) {
D.setInvalidType(true);
SkipUntil(tok::r_square, StopAtSemi);
return;
}
T.consumeClose();
ParsedAttributes attrs(AttrFactory);
MaybeParseCXX11Attributes(attrs);
D.AddTypeInfo(DeclaratorChunk::getArray(DS.getTypeQualifiers(),
StaticLoc.isValid(), isStar,
NumElements.get(),
T.getOpenLocation(),
T.getCloseLocation()),
attrs, T.getCloseLocation());
}
void Parser::ParseMisplacedBracketDeclarator(Declarator &D) {
assert(Tok.is(tok::l_square) && "Missing opening bracket");
assert(!D.mayOmitIdentifier() && "Declarator cannot omit identifier");
SourceLocation StartBracketLoc = Tok.getLocation();
Declarator TempDeclarator(D.getDeclSpec(), D.getContext());
while (Tok.is(tok::l_square)) {
ParseBracketDeclarator(TempDeclarator);
}
if (Tok.is(tok::semi))
D.getName().EndLocation = StartBracketLoc;
SourceLocation SuggestParenLoc = Tok.getLocation();
ParseDeclaratorInternal(D, &Parser::ParseDirectDeclarator);
if (TempDeclarator.getNumTypeObjects() == 0)
return;
bool NeedParens = false;
if (D.getNumTypeObjects() != 0) {
switch (D.getTypeObject(D.getNumTypeObjects() - 1).Kind) {
case DeclaratorChunk::Pointer:
case DeclaratorChunk::Reference:
case DeclaratorChunk::BlockPointer:
case DeclaratorChunk::MemberPointer:
case DeclaratorChunk::Pipe:
NeedParens = true;
break;
case DeclaratorChunk::Array:
case DeclaratorChunk::Function:
case DeclaratorChunk::Paren:
break;
}
}
if (NeedParens) {
ParsedAttributes attrs(AttrFactory);
SourceLocation EndLoc = PP.getLocForEndOfToken(D.getLocEnd());
D.AddTypeInfo(DeclaratorChunk::getParen(SuggestParenLoc, EndLoc), attrs,
SourceLocation());
}
for (unsigned i = 0, e = TempDeclarator.getNumTypeObjects(); i < e; ++i) {
const DeclaratorChunk &Chunk = TempDeclarator.getTypeObject(i);
ParsedAttributes attrs(AttrFactory);
attrs.set(Chunk.Common.AttrList);
D.AddTypeInfo(Chunk, attrs, SourceLocation());
}
if (!D.getIdentifier() && !NeedParens)
return;
SourceLocation EndBracketLoc = TempDeclarator.getLocEnd();
SourceRange BracketRange(StartBracketLoc, EndBracketLoc);
SourceLocation EndLoc = PP.getLocForEndOfToken(D.getLocEnd());
if (NeedParens) {
Diag(EndLoc, diag::err_brackets_go_after_unqualified_id)
<< getLangOpts().CPlusPlus
<< FixItHint::CreateInsertion(SuggestParenLoc, "(")
<< FixItHint::CreateInsertion(EndLoc, ")")
<< FixItHint::CreateInsertionFromRange(
EndLoc, CharSourceRange(BracketRange, true))
<< FixItHint::CreateRemoval(BracketRange);
} else {
Diag(EndLoc, diag::err_brackets_go_after_unqualified_id)
<< getLangOpts().CPlusPlus
<< FixItHint::CreateInsertionFromRange(
EndLoc, CharSourceRange(BracketRange, true))
<< FixItHint::CreateRemoval(BracketRange);
}
}
void Parser::ParseTypeofSpecifier(DeclSpec &DS) {
assert(Tok.is(tok::kw_typeof) && "Not a typeof specifier");
Token OpTok = Tok;
SourceLocation StartLoc = ConsumeToken();
const bool hasParens = Tok.is(tok::l_paren);
EnterExpressionEvaluationContext Unevaluated(Actions, Sema::Unevaluated,
Sema::ReuseLambdaContextDecl);
bool isCastExpr;
ParsedType CastTy;
SourceRange CastRange;
ExprResult Operand = Actions.CorrectDelayedTyposInExpr(
ParseExprAfterUnaryExprOrTypeTrait(OpTok, isCastExpr, CastTy, CastRange));
if (hasParens)
DS.setTypeofParensRange(CastRange);
if (CastRange.getEnd().isInvalid())
DS.SetRangeEnd(Tok.getLocation());
else
DS.SetRangeEnd(CastRange.getEnd());
if (isCastExpr) {
if (!CastTy) {
DS.SetTypeSpecError();
return;
}
const char *PrevSpec = nullptr;
unsigned DiagID;
if (DS.SetTypeSpecType(DeclSpec::TST_typeofType, StartLoc, PrevSpec,
DiagID, CastTy,
Actions.getASTContext().getPrintingPolicy()))
Diag(StartLoc, DiagID) << PrevSpec;
return;
}
if (Operand.isInvalid()) {
DS.SetTypeSpecError();
return;
}
Operand = Actions.HandleExprEvaluationContextForTypeof(Operand.get());
if (Operand.isInvalid()) {
DS.SetTypeSpecError();
return;
}
const char *PrevSpec = nullptr;
unsigned DiagID;
if (DS.SetTypeSpecType(DeclSpec::TST_typeofExpr, StartLoc, PrevSpec,
DiagID, Operand.get(),
Actions.getASTContext().getPrintingPolicy()))
Diag(StartLoc, DiagID) << PrevSpec;
}
void Parser::ParseAtomicSpecifier(DeclSpec &DS) {
assert(Tok.is(tok::kw__Atomic) && NextToken().is(tok::l_paren) &&
"Not an atomic specifier");
SourceLocation StartLoc = ConsumeToken();
BalancedDelimiterTracker T(*this, tok::l_paren);
if (T.consumeOpen())
return;
TypeResult Result = ParseTypeName();
if (Result.isInvalid()) {
SkipUntil(tok::r_paren, StopAtSemi);
return;
}
T.consumeClose();
if (T.getCloseLocation().isInvalid())
return;
DS.setTypeofParensRange(T.getRange());
DS.SetRangeEnd(T.getCloseLocation());
const char *PrevSpec = nullptr;
unsigned DiagID;
if (DS.SetTypeSpecType(DeclSpec::TST_atomic, StartLoc, PrevSpec,
DiagID, Result.get(),
Actions.getASTContext().getPrintingPolicy()))
Diag(StartLoc, DiagID) << PrevSpec;
}
bool Parser::TryAltiVecVectorTokenOutOfLine() {
Token Next = NextToken();
switch (Next.getKind()) {
default: return false;
case tok::kw_short:
case tok::kw_long:
case tok::kw_signed:
case tok::kw_unsigned:
case tok::kw_void:
case tok::kw_char:
case tok::kw_int:
case tok::kw_float:
case tok::kw_double:
case tok::kw_bool:
case tok::kw___bool:
case tok::kw___pixel:
Tok.setKind(tok::kw___vector);
return true;
case tok::identifier:
if (Next.getIdentifierInfo() == Ident_pixel) {
Tok.setKind(tok::kw___vector);
return true;
}
if (Next.getIdentifierInfo() == Ident_bool) {
Tok.setKind(tok::kw___vector);
return true;
}
return false;
}
}
bool Parser::TryAltiVecTokenOutOfLine(DeclSpec &DS, SourceLocation Loc,
const char *&PrevSpec, unsigned &DiagID,
bool &isInvalid) {
const PrintingPolicy &Policy = Actions.getASTContext().getPrintingPolicy();
if (Tok.getIdentifierInfo() == Ident_vector) {
Token Next = NextToken();
switch (Next.getKind()) {
case tok::kw_short:
case tok::kw_long:
case tok::kw_signed:
case tok::kw_unsigned:
case tok::kw_void:
case tok::kw_char:
case tok::kw_int:
case tok::kw_float:
case tok::kw_double:
case tok::kw_bool:
case tok::kw___bool:
case tok::kw___pixel:
isInvalid = DS.SetTypeAltiVecVector(true, Loc, PrevSpec, DiagID, Policy);
return true;
case tok::identifier:
if (Next.getIdentifierInfo() == Ident_pixel) {
isInvalid = DS.SetTypeAltiVecVector(true, Loc, PrevSpec, DiagID,Policy);
return true;
}
if (Next.getIdentifierInfo() == Ident_bool) {
isInvalid = DS.SetTypeAltiVecVector(true, Loc, PrevSpec, DiagID,Policy);
return true;
}
break;
default:
break;
}
} else if ((Tok.getIdentifierInfo() == Ident_pixel) &&
DS.isTypeAltiVecVector()) {
isInvalid = DS.SetTypeAltiVecPixel(true, Loc, PrevSpec, DiagID, Policy);
return true;
} else if ((Tok.getIdentifierInfo() == Ident_bool) &&
DS.isTypeAltiVecVector()) {
isInvalid = DS.SetTypeAltiVecBool(true, Loc, PrevSpec, DiagID, Policy);
return true;
}
return false;
}