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objective-c: Bring objective-c handling of decl context 

to modernity. Instead of passing down individual
context objects from parser to sema, establish decl
context in parser and have sema access current context
as needed. I still need to take of Doug's comment for
minor cleanups.

llvm-svn: 138040
This commit is contained in:
Fariborz Jahanian 2011-08-19 16:06:57 +00:00
parent 369b3fa752
commit d6d866d6fa
11 changed files with 165 additions and 128 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
clang/include/clang/AST/DeclBase.h
View File

@ -893,6 +893,11 @@ public:
return DeclKind == Decl::Block;
}
bool isObjCContainer() const {
return (DeclKind >= (int)Decl::ObjCCategory &&
DeclKind <= (int)Decl::ObjCProtocol);
}
bool isFunctionOrMethod() const {
switch (DeclKind) {
case Decl::Block:

10
clang/include/clang/Parse/Parser.h
View File

@ -186,6 +186,8 @@ public:
const Token &getCurToken() const { return Tok; }
Scope *getCurScope() const { return Actions.getCurScope(); }
Decl *getObjCDeclContext() const { return Actions.getObjCDeclContext(); }
// Type forwarding. All of these are statically 'void*', but they may all be
// different actual classes based on the actions in place.
@ -1054,8 +1056,7 @@ private:
SourceLocation &LAngleLoc,
SourceLocation &EndProtoLoc);
bool ParseObjCProtocolQualifiers(DeclSpec &DS);
void ParseObjCInterfaceDeclList(Decl *interfaceDecl,
tok::ObjCKeywordKind contextKey);
void ParseObjCInterfaceDeclList(tok::ObjCKeywordKind contextKey);
Decl *ParseObjCAtProtocolDeclaration(SourceLocation atLoc,
ParsedAttributes &prefixAttrs);
@ -1086,14 +1087,13 @@ private:
ParsedType ParseObjCTypeName(ObjCDeclSpec &DS, ObjCTypeNameContext Context);
void ParseObjCMethodRequirement();
Decl *ParseObjCMethodPrototype(Decl *classOrCat,
Decl *ParseObjCMethodPrototype(
tok::ObjCKeywordKind MethodImplKind = tok::objc_not_keyword,
bool MethodDefinition = true);
Decl *ParseObjCMethodDecl(SourceLocation mLoc, tok::TokenKind mType,
Decl *classDecl,
tok::ObjCKeywordKind MethodImplKind = tok::objc_not_keyword,
bool MethodDefinition=true);
void ParseObjCPropertyAttribute(ObjCDeclSpec &DS, Decl *ClassDecl);
void ParseObjCPropertyAttribute(ObjCDeclSpec &DS);
Decl *ParseObjCMethodDefinition();

33
clang/include/clang/Sema/Sema.h
View File

@ -1154,9 +1154,9 @@ public:
bool CheckNontrivialField(FieldDecl *FD);
void DiagnoseNontrivial(const RecordType* Record, CXXSpecialMember mem);
CXXSpecialMember getSpecialMember(const CXXMethodDecl *MD);
void ActOnLastBitfield(SourceLocation DeclStart, Decl *IntfDecl,
void ActOnLastBitfield(SourceLocation DeclStart,
SmallVectorImpl<Decl *> &AllIvarDecls);
Decl *ActOnIvar(Scope *S, SourceLocation DeclStart, Decl *IntfDecl,
Decl *ActOnIvar(Scope *S, SourceLocation DeclStart,
Declarator &D, Expr *BitfieldWidth,
tok::ObjCKeywordKind visibility);
@ -1171,6 +1171,8 @@ public:
/// struct, or union).
void ActOnTagStartDefinition(Scope *S, Decl *TagDecl);
void ActOnObjCContainerStartDefinition(Decl *IDecl);
/// ActOnStartCXXMemberDeclarations - Invoked when we have parsed a
/// C++ record definition's base-specifiers clause and are starting its
/// member declarations.
@ -1183,6 +1185,8 @@ public:
void ActOnTagFinishDefinition(Scope *S, Decl *TagDecl,
SourceLocation RBraceLoc);
void ActOnObjCContainerFinishDefinition(Decl *IDecl);
/// ActOnTagDefinitionError - Invoked when there was an unrecoverable
/// error parsing the definition of a tag.
void ActOnTagDefinitionError(Scope *S, Decl *TagDecl);
@ -1845,7 +1849,6 @@ public:
/// Called by ActOnProperty to handle @property declarations in
//// class extensions.
Decl *HandlePropertyInClassExtension(Scope *S,
ObjCCategoryDecl *CDecl,
SourceLocation AtLoc,
FieldDeclarator &FD,
Selector GetterSel,
@ -5044,7 +5047,7 @@ public:
void MatchOneProtocolPropertiesInClass(Decl *CDecl,
ObjCProtocolDecl *PDecl);
void ActOnAtEnd(Scope *S, SourceRange AtEnd, Decl *classDecl,
void ActOnAtEnd(Scope *S, SourceRange AtEnd,
Decl **allMethods = 0, unsigned allNum = 0,
Decl **allProperties = 0, unsigned pNum = 0,
DeclGroupPtrTy *allTUVars = 0, unsigned tuvNum = 0);
@ -5052,7 +5055,6 @@ public:
Decl *ActOnProperty(Scope *S, SourceLocation AtLoc,
FieldDeclarator &FD, ObjCDeclSpec &ODS,
Selector GetterSel, Selector SetterSel,
Decl *ClassCategory,
bool *OverridingProperty,
tok::ObjCKeywordKind MethodImplKind,
DeclContext *lexicalDC = 0);
@ -5060,7 +5062,7 @@ public:
Decl *ActOnPropertyImplDecl(Scope *S,
SourceLocation AtLoc,
SourceLocation PropertyLoc,
bool ImplKind,Decl *ClassImplDecl,
bool ImplKind,
IdentifierInfo *PropertyId,
IdentifierInfo *PropertyIvar,
SourceLocation PropertyIvarLoc);
@ -5091,7 +5093,7 @@ public:
SourceLocation BeginLoc, // location of the + or -.
SourceLocation EndLoc, // location of the ; or {.
tok::TokenKind MethodType,
Decl *ClassDecl, ObjCDeclSpec &ReturnQT, ParsedType ReturnType,
ObjCDeclSpec &ReturnQT, ParsedType ReturnType,
SourceLocation SelectorStartLoc, Selector Sel,
// optional arguments. The number of types/arguments is obtained
// from the Sel.getNumArgs().
@ -5837,14 +5839,13 @@ public:
CXXCtorInitializer** Initializers,
unsigned NumInitializers);
void CodeCompleteObjCAtDirective(Scope *S, Decl *ObjCImpDecl,
bool InInterface);
void CodeCompleteObjCAtDirective(Scope *S);
void CodeCompleteObjCAtVisibility(Scope *S);
void CodeCompleteObjCAtStatement(Scope *S);
void CodeCompleteObjCAtExpression(Scope *S);
void CodeCompleteObjCPropertyFlags(Scope *S, ObjCDeclSpec &ODS);
void CodeCompleteObjCPropertyGetter(Scope *S, Decl *ClassDecl);
void CodeCompleteObjCPropertySetter(Scope *S, Decl *ClassDecl);
void CodeCompleteObjCPropertyGetter(Scope *S);
void CodeCompleteObjCPropertySetter(Scope *S);
void CodeCompleteObjCPassingType(Scope *S, ObjCDeclSpec &DS,
bool IsParameter);
void CodeCompleteObjCMessageReceiver(Scope *S);
@ -5881,14 +5882,12 @@ public:
void CodeCompleteObjCImplementationCategory(Scope *S,
IdentifierInfo *ClassName,
SourceLocation ClassNameLoc);
void CodeCompleteObjCPropertyDefinition(Scope *S, Decl *ObjCImpDecl);
void CodeCompleteObjCPropertyDefinition(Scope *S);
void CodeCompleteObjCPropertySynthesizeIvar(Scope *S,
IdentifierInfo *PropertyName,
Decl *ObjCImpDecl);
IdentifierInfo *PropertyName);
void CodeCompleteObjCMethodDecl(Scope *S,
bool IsInstanceMethod,
ParsedType ReturnType,
Decl *IDecl);
ParsedType ReturnType);
void CodeCompleteObjCMethodDeclSelector(Scope *S,
bool IsInstanceMethod,
bool AtParameterName,
@ -6005,6 +6004,8 @@ public:
/// itself and in routines directly invoked from the parser and *never* from
/// template substitution or instantiation.
Scope *getCurScope() const { return CurScope; }
Decl *getObjCDeclContext() const;
};
/// \brief RAII object that enters a new expression evaluation context.

1
clang/lib/Parse/ParseDecl.cpp
View File

@ -2319,6 +2319,7 @@ bool Parser::ParseOptionalTypeSpecifier(DeclSpec &DS, bool& isInvalid,
///
void Parser::
ParseStructDeclaration(DeclSpec &DS, FieldCallback &Fields) {
if (Tok.is(tok::kw___extension__)) {
// __extension__ silences extension warnings in the subexpression.
ExtensionRAIIObject O(Diags); // Use RAII to do this.

110
clang/lib/Parse/ParseObjc.cpp
View File

@ -33,7 +33,7 @@ Decl *Parser::ParseObjCAtDirectives() {
SourceLocation AtLoc = ConsumeToken(); // the "@"
if (Tok.is(tok::code_completion)) {
Actions.CodeCompleteObjCAtDirective(getCurScope(), ObjCImpDecl, false);
Actions.CodeCompleteObjCAtDirective(getCurScope());
ConsumeCodeCompletionToken();
}
@ -195,11 +195,13 @@ Decl *Parser::ParseObjCAtInterfaceDeclaration(SourceLocation atLoc,
ProtocolRefs.size(),
ProtocolLocs.data(),
EndProtoLoc);
if (Tok.is(tok::l_brace))
ParseObjCClassInstanceVariables(CategoryType, tok::objc_private,
atLoc);
ParseObjCInterfaceDeclList(CategoryType, tok::objc_not_keyword);
if (Tok.is(tok::l_brace))
ParseObjCClassInstanceVariables(CategoryType, tok::objc_private, atLoc);
Actions.ActOnObjCContainerStartDefinition(CategoryType);
ParseObjCInterfaceDeclList(tok::objc_not_keyword);
Actions.ActOnObjCContainerFinishDefinition(CategoryType);
return CategoryType;
}
// Parse a class interface.
@ -241,7 +243,9 @@ Decl *Parser::ParseObjCAtInterfaceDeclaration(SourceLocation atLoc,
if (Tok.is(tok::l_brace))
ParseObjCClassInstanceVariables(ClsType, tok::objc_protected, atLoc);
ParseObjCInterfaceDeclList(ClsType, tok::objc_interface);
Actions.ActOnObjCContainerStartDefinition(ClsType);
ParseObjCInterfaceDeclList(tok::objc_interface);
Actions.ActOnObjCContainerFinishDefinition(ClsType);
return ClsType;
}
@ -249,17 +253,16 @@ Decl *Parser::ParseObjCAtInterfaceDeclaration(SourceLocation atLoc,
/// it's used, but instead it's been lifted to here to support VS2005.
struct Parser::ObjCPropertyCallback : FieldCallback {
Parser &P;
Decl *IDecl;
SmallVectorImpl<Decl *> &Props;
ObjCDeclSpec &OCDS;
SourceLocation AtLoc;
tok::ObjCKeywordKind MethodImplKind;
ObjCPropertyCallback(Parser &P, Decl *IDecl,
ObjCPropertyCallback(Parser &P,
SmallVectorImpl<Decl *> &Props,
ObjCDeclSpec &OCDS, SourceLocation AtLoc,
tok::ObjCKeywordKind MethodImplKind) :
P(P), IDecl(IDecl), Props(Props), OCDS(OCDS), AtLoc(AtLoc),
P(P), Props(Props), OCDS(OCDS), AtLoc(AtLoc),
MethodImplKind(MethodImplKind) {
}
@ -292,7 +295,7 @@ struct Parser::ObjCPropertyCallback : FieldCallback {
bool isOverridingProperty = false;
Decl *Property =
P.Actions.ActOnProperty(P.getCurScope(), AtLoc, FD, OCDS,
GetterSel, SetterSel, IDecl,
GetterSel, SetterSel,
&isOverridingProperty,
MethodImplKind);
if (!isOverridingProperty)
@ -314,8 +317,7 @@ struct Parser::ObjCPropertyCallback : FieldCallback {
/// @required
/// @optional
///
void Parser::ParseObjCInterfaceDeclList(Decl *interfaceDecl,
tok::ObjCKeywordKind contextKey) {
void Parser::ParseObjCInterfaceDeclList(tok::ObjCKeywordKind contextKey) {
SmallVector<Decl *, 32> allMethods;
SmallVector<Decl *, 16> allProperties;
SmallVector<DeclGroupPtrTy, 8> allTUVariables;
@ -327,7 +329,7 @@ void Parser::ParseObjCInterfaceDeclList(Decl *interfaceDecl,
// If this is a method prototype, parse it.
if (Tok.is(tok::minus) || Tok.is(tok::plus)) {
Decl *methodPrototype =
ParseObjCMethodPrototype(interfaceDecl, MethodImplKind, false);
ParseObjCMethodPrototype(MethodImplKind, false);
allMethods.push_back(methodPrototype);
// Consume the ';' here, since ParseObjCMethodPrototype() is re-used for
// method definitions.
@ -339,7 +341,6 @@ void Parser::ParseObjCInterfaceDeclList(Decl *interfaceDecl,
Diag(Tok, diag::err_expected_minus_or_plus);
ParseObjCMethodDecl(Tok.getLocation(),
tok::minus,
interfaceDecl,
MethodImplKind, false);
continue;
}
@ -368,9 +369,6 @@ void Parser::ParseObjCInterfaceDeclList(Decl *interfaceDecl,
// erroneous r_brace would cause an infinite loop if not handled here.
if (Tok.is(tok::r_brace))
break;
// FIXME: as the name implies, this rule allows function definitions.
// We could pass a flag or check for functions during semantic analysis.
ParsedAttributes attrs(AttrFactory);
allTUVariables.push_back(ParseDeclarationOrFunctionDefinition(attrs));
continue;
@ -379,7 +377,7 @@ void Parser::ParseObjCInterfaceDeclList(Decl *interfaceDecl,
// Otherwise, we have an @ directive, eat the @.
SourceLocation AtLoc = ConsumeToken(); // the "@"
if (Tok.is(tok::code_completion)) {
Actions.CodeCompleteObjCAtDirective(getCurScope(), ObjCImpDecl, true);
Actions.CodeCompleteObjCAtDirective(getCurScope());
ConsumeCodeCompletionToken();
break;
}
@ -433,9 +431,9 @@ void Parser::ParseObjCInterfaceDeclList(Decl *interfaceDecl,
ObjCDeclSpec OCDS;
// Parse property attribute list, if any.
if (Tok.is(tok::l_paren))
ParseObjCPropertyAttribute(OCDS, interfaceDecl);
ParseObjCPropertyAttribute(OCDS);
ObjCPropertyCallback Callback(*this, interfaceDecl, allProperties,
ObjCPropertyCallback Callback(*this, allProperties,
OCDS, AtLoc, MethodImplKind);
// Parse all the comma separated declarators.
@ -450,7 +448,7 @@ void Parser::ParseObjCInterfaceDeclList(Decl *interfaceDecl,
// We break out of the big loop in two cases: when we see @end or when we see
// EOF. In the former case, eat the @end. In the later case, emit an error.
if (Tok.is(tok::code_completion)) {
Actions.CodeCompleteObjCAtDirective(getCurScope(), ObjCImpDecl, true);
Actions.CodeCompleteObjCAtDirective(getCurScope());
ConsumeCodeCompletionToken();
} else if (Tok.isObjCAtKeyword(tok::objc_end))
ConsumeToken(); // the "end" identifier
@ -459,7 +457,7 @@ void Parser::ParseObjCInterfaceDeclList(Decl *interfaceDecl,
// Insert collected methods declarations into the @interface object.
// This passes in an invalid SourceLocation for AtEndLoc when EOF is hit.
Actions.ActOnAtEnd(getCurScope(), AtEnd, interfaceDecl,
Actions.ActOnAtEnd(getCurScope(), AtEnd,
allMethods.data(), allMethods.size(),
allProperties.data(), allProperties.size(),
allTUVariables.data(), allTUVariables.size());
@ -485,7 +483,7 @@ void Parser::ParseObjCInterfaceDeclList(Decl *interfaceDecl,
/// weak
/// unsafe_unretained
///
void Parser::ParseObjCPropertyAttribute(ObjCDeclSpec &DS, Decl *ClassDecl) {
void Parser::ParseObjCPropertyAttribute(ObjCDeclSpec &DS) {
assert(Tok.getKind() == tok::l_paren);
SourceLocation LHSLoc = ConsumeParen(); // consume '('
@ -536,9 +534,9 @@ void Parser::ParseObjCPropertyAttribute(ObjCDeclSpec &DS, Decl *ClassDecl) {
if (Tok.is(tok::code_completion)) {
if (IsSetter)
Actions.CodeCompleteObjCPropertySetter(getCurScope(), ClassDecl);
Actions.CodeCompleteObjCPropertySetter(getCurScope());
else
Actions.CodeCompleteObjCPropertyGetter(getCurScope(), ClassDecl);
Actions.CodeCompleteObjCPropertyGetter(getCurScope());
ConsumeCodeCompletionToken();
}
@ -590,14 +588,13 @@ void Parser::ParseObjCPropertyAttribute(ObjCDeclSpec &DS, Decl *ClassDecl) {
/// objc-method-attributes: [OBJC2]
/// __attribute__((deprecated))
///
Decl *Parser::ParseObjCMethodPrototype(Decl *IDecl,
tok::ObjCKeywordKind MethodImplKind,
Decl *Parser::ParseObjCMethodPrototype(tok::ObjCKeywordKind MethodImplKind,
bool MethodDefinition) {
assert((Tok.is(tok::minus) || Tok.is(tok::plus)) && "expected +/-");
tok::TokenKind methodType = Tok.getKind();
SourceLocation mLoc = ConsumeToken();
Decl *MDecl = ParseObjCMethodDecl(mLoc, methodType, IDecl,MethodImplKind,
Decl *MDecl = ParseObjCMethodDecl(mLoc, methodType, MethodImplKind,
MethodDefinition);
// Since this rule is used for both method declarations and definitions,
// the caller is (optionally) responsible for consuming the ';'.
@ -835,14 +832,13 @@ ParsedType Parser::ParseObjCTypeName(ObjCDeclSpec &DS,
///
Decl *Parser::ParseObjCMethodDecl(SourceLocation mLoc,
tok::TokenKind mType,
Decl *IDecl,
tok::ObjCKeywordKind MethodImplKind,
bool MethodDefinition) {
ParsingDeclRAIIObject PD(*this);
if (Tok.is(tok::code_completion)) {
Actions.CodeCompleteObjCMethodDecl(getCurScope(), mType == tok::minus,
/*ReturnType=*/ ParsedType(), IDecl);
/*ReturnType=*/ ParsedType());
ConsumeCodeCompletionToken();
}
@ -859,7 +855,7 @@ Decl *Parser::ParseObjCMethodDecl(SourceLocation mLoc,
if (Tok.is(tok::code_completion)) {
Actions.CodeCompleteObjCMethodDecl(getCurScope(), mType == tok::minus,
ReturnType, IDecl);
ReturnType);
ConsumeCodeCompletionToken();
}
@ -885,7 +881,7 @@ Decl *Parser::ParseObjCMethodDecl(SourceLocation mLoc,
Selector Sel = PP.getSelectorTable().getNullarySelector(SelIdent);
Decl *Result
= Actions.ActOnMethodDeclaration(getCurScope(), mLoc, Tok.getLocation(),
mType, IDecl, DSRet, ReturnType,
mType, DSRet, ReturnType,
selLoc, Sel, 0,
CParamInfo.data(), CParamInfo.size(),
methodAttrs.getList(), MethodImplKind,
@ -1001,23 +997,18 @@ Decl *Parser::ParseObjCMethodDecl(SourceLocation mLoc,
if (getLang().ObjC2)
MaybeParseGNUAttributes(methodAttrs);
if (KeyIdents.size() == 0) {
// Leave prototype scope.
PrototypeScope.Exit();
if (KeyIdents.size() == 0)
return 0;
}
Selector Sel = PP.getSelectorTable().getSelector(KeyIdents.size(),
&KeyIdents[0]);
Decl *Result
= Actions.ActOnMethodDeclaration(getCurScope(), mLoc, Tok.getLocation(),
mType, IDecl, DSRet, ReturnType,
mType, DSRet, ReturnType,
selLoc, Sel, &ArgInfos[0],
CParamInfo.data(), CParamInfo.size(),
methodAttrs.getList(),
MethodImplKind, isVariadic, MethodDefinition);
// Leave prototype scope.
PrototypeScope.Exit();
PD.complete(Result);
return Result;
@ -1117,7 +1108,7 @@ void Parser::ParseObjCClassInstanceVariables(Decl *interfaceDecl,
SourceLocation atLoc) {
assert(Tok.is(tok::l_brace) && "expected {");
SmallVector<Decl *, 32> AllIvarDecls;
ParseScope ClassScope(this, Scope::DeclScope|Scope::ClassScope);
SourceLocation LBraceLoc = ConsumeBrace(); // the "{"
@ -1175,11 +1166,13 @@ void Parser::ParseObjCClassInstanceVariables(Decl *interfaceDecl,
}
Decl *invoke(FieldDeclarator &FD) {
P.Actions.ActOnObjCContainerStartDefinition(IDecl);
// Install the declarator into the interface decl.
Decl *Field
= P.Actions.ActOnIvar(P.getCurScope(),
FD.D.getDeclSpec().getSourceRange().getBegin(),
IDecl, FD.D, FD.BitfieldSize, visibility);
FD.D, FD.BitfieldSize, visibility);
P.Actions.ActOnObjCContainerFinishDefinition(IDecl);
if (Field)
AllIvarDecls.push_back(Field);
return Field;
@ -1199,7 +1192,7 @@ void Parser::ParseObjCClassInstanceVariables(Decl *interfaceDecl,
}
}
SourceLocation RBraceLoc = MatchRHSPunctuation(tok::r_brace, LBraceLoc);
Actions.ActOnLastBitfield(RBraceLoc, interfaceDecl, AllIvarDecls);
Actions.ActOnLastBitfield(RBraceLoc, AllIvarDecls);
// Call ActOnFields() even if we don't have any decls. This is useful
// for code rewriting tools that need to be aware of the empty list.
Actions.ActOnFields(getCurScope(), atLoc, interfaceDecl,
@ -1295,7 +1288,11 @@ Decl *Parser::ParseObjCAtProtocolDeclaration(SourceLocation AtLoc,
ProtocolRefs.size(),
ProtocolLocs.data(),
EndProtoLoc, attrs.getList());
ParseObjCInterfaceDeclList(ProtoType, tok::objc_protocol);
Actions.ActOnObjCContainerStartDefinition(ProtoType);
ParseObjCInterfaceDeclList(tok::objc_protocol);
Actions.ActOnObjCContainerFinishDefinition(ProtoType);
return ProtoType;
}
@ -1356,6 +1353,8 @@ Decl *Parser::ParseObjCAtImplementationDeclaration(
Decl *ImplCatType = Actions.ActOnStartCategoryImplementation(
atLoc, nameId, nameLoc, categoryId,
categoryLoc);
Actions.ActOnObjCContainerStartDefinition(ImplCatType);
ObjCImpDecl = ImplCatType;
PendingObjCImpDecl.push_back(ObjCImpDecl);
return 0;
@ -1378,11 +1377,11 @@ Decl *Parser::ParseObjCAtImplementationDeclaration(
superClassId, superClassLoc);
if (Tok.is(tok::l_brace)) // we have ivars
ParseObjCClassInstanceVariables(ImplClsType/*FIXME*/,
tok::objc_private, atLoc);
ParseObjCClassInstanceVariables(ImplClsType, tok::objc_private, atLoc);
Actions.ActOnObjCContainerStartDefinition(ImplClsType);
ObjCImpDecl = ImplClsType;
PendingObjCImpDecl.push_back(ObjCImpDecl);
return 0;
}
@ -1392,7 +1391,8 @@ Decl *Parser::ParseObjCAtEndDeclaration(SourceRange atEnd) {
Decl *Result = ObjCImpDecl;
ConsumeToken(); // the "end" identifier
if (ObjCImpDecl) {
Actions.ActOnAtEnd(getCurScope(), atEnd, ObjCImpDecl);
Actions.ActOnAtEnd(getCurScope(), atEnd);
Actions.ActOnObjCContainerFinishDefinition(ObjCImpDecl);
ObjCImpDecl = 0;
PendingObjCImpDecl.pop_back();
}
@ -1408,7 +1408,8 @@ Parser::DeclGroupPtrTy Parser::FinishPendingObjCActions() {
if (PendingObjCImpDecl.empty())
return Actions.ConvertDeclToDeclGroup(0);
Decl *ImpDecl = PendingObjCImpDecl.pop_back_val();
Actions.ActOnAtEnd(getCurScope(), SourceRange(), ImpDecl);
Actions.ActOnAtEnd(getCurScope(), SourceRange());
Actions.ActOnObjCContainerFinishDefinition(ImpDecl);
return Actions.ConvertDeclToDeclGroup(ImpDecl);
}
@ -1455,7 +1456,7 @@ Decl *Parser::ParseObjCPropertySynthesize(SourceLocation atLoc) {
while (true) {
if (Tok.is(tok::code_completion)) {
Actions.CodeCompleteObjCPropertyDefinition(getCurScope(), ObjCImpDecl);
Actions.CodeCompleteObjCPropertyDefinition(getCurScope());
ConsumeCodeCompletionToken();
}
@ -1474,8 +1475,7 @@ Decl *Parser::ParseObjCPropertySynthesize(SourceLocation atLoc) {
ConsumeToken(); // consume '='
if (Tok.is(tok::code_completion)) {
Actions.CodeCompleteObjCPropertySynthesizeIvar(getCurScope(), propertyId,
ObjCImpDecl);
Actions.CodeCompleteObjCPropertySynthesizeIvar(getCurScope(), propertyId);
ConsumeCodeCompletionToken();
}
@ -1486,7 +1486,7 @@ Decl *Parser::ParseObjCPropertySynthesize(SourceLocation atLoc) {
propertyIvar = Tok.getIdentifierInfo();
propertyIvarLoc = ConsumeToken(); // consume ivar-name
}
Actions.ActOnPropertyImplDecl(getCurScope(), atLoc, propertyLoc, true, ObjCImpDecl,
Actions.ActOnPropertyImplDecl(getCurScope(), atLoc, propertyLoc, true,
propertyId, propertyIvar, propertyIvarLoc);
if (Tok.isNot(tok::comma))
break;
@ -1509,7 +1509,7 @@ Decl *Parser::ParseObjCPropertyDynamic(SourceLocation atLoc) {
ConsumeToken(); // consume dynamic
while (true) {
if (Tok.is(tok::code_completion)) {
Actions.CodeCompleteObjCPropertyDefinition(getCurScope(), ObjCImpDecl);
Actions.CodeCompleteObjCPropertyDefinition(getCurScope());
ConsumeCodeCompletionToken();
}
@ -1521,7 +1521,7 @@ Decl *Parser::ParseObjCPropertyDynamic(SourceLocation atLoc) {
IdentifierInfo *propertyId = Tok.getIdentifierInfo();
SourceLocation propertyLoc = ConsumeToken(); // consume property name
Actions.ActOnPropertyImplDecl(getCurScope(), atLoc, propertyLoc, false, ObjCImpDecl,
Actions.ActOnPropertyImplDecl(getCurScope(), atLoc, propertyLoc, false,
propertyId, 0, SourceLocation());
if (Tok.isNot(tok::comma))
@ -1739,7 +1739,7 @@ Parser::ParseObjCAutoreleasePoolStmt(SourceLocation atLoc) {
/// objc-method-def: objc-method-proto ';'[opt] '{' body '}'
///
Decl *Parser::ParseObjCMethodDefinition() {
Decl *MDecl = ParseObjCMethodPrototype(ObjCImpDecl);
Decl *MDecl = ParseObjCMethodPrototype();
PrettyDeclStackTraceEntry CrashInfo(Actions, MDecl, Tok.getLocation(),
"parsing Objective-C method");

11
clang/lib/Parse/Parser.cpp
View File

@ -811,7 +811,16 @@ Parser::ParseDeclarationOrFunctionDefinition(ParsedAttributes &attrs,
AccessSpecifier AS) {
ParsingDeclSpec DS(*this);
DS.takeAttributesFrom(attrs);
return ParseDeclarationOrFunctionDefinition(DS, AS);
Decl *DC = getObjCDeclContext();
if (DC)
// Must temporarily exit the objective-c container scope for
// parsing c constructs and re-enter objc container scope
// afterwards.
Actions.ActOnObjCContainerFinishDefinition(DC);
DeclGroupPtrTy resPtrTy = ParseDeclarationOrFunctionDefinition(DS, AS);
if (DC)
Actions.ActOnObjCContainerStartDefinition(DC);
return resPtrTy;
}
/// ParseFunctionDefinition - We parsed and verified that the specified

37
clang/lib/Sema/SemaCodeComplete.cpp
View File

@ -4141,15 +4141,14 @@ static void AddObjCTopLevelResults(ResultBuilder &Results, bool NeedAt) {
Results.AddResult(Result(Builder.TakeString()));
}
void Sema::CodeCompleteObjCAtDirective(Scope *S, Decl *ObjCImpDecl,
bool InInterface) {
void Sema::CodeCompleteObjCAtDirective(Scope *S) {
typedef CodeCompletionResult Result;
ResultBuilder Results(*this, CodeCompleter->getAllocator(),
CodeCompletionContext::CCC_Other);
Results.EnterNewScope();
if (ObjCImpDecl)
if (isa<ObjCImplDecl>(CurContext))
AddObjCImplementationResults(getLangOptions(), Results, false);
else if (InInterface)
else if (CurContext->isObjCContainer())
AddObjCInterfaceResults(getLangOptions(), Results, false);
else
AddObjCTopLevelResults(Results, false);
@ -4521,14 +4520,14 @@ static void AddObjCMethods(ObjCContainerDecl *Container,
}
void Sema::CodeCompleteObjCPropertyGetter(Scope *S, Decl *ClassDecl) {
void Sema::CodeCompleteObjCPropertyGetter(Scope *S) {
typedef CodeCompletionResult Result;
// Try to find the interface where getters might live.
ObjCInterfaceDecl *Class = dyn_cast_or_null<ObjCInterfaceDecl>(ClassDecl);
ObjCInterfaceDecl *Class = dyn_cast_or_null<ObjCInterfaceDecl>(CurContext);
if (!Class) {
if (ObjCCategoryDecl *Category
= dyn_cast_or_null<ObjCCategoryDecl>(ClassDecl))
= dyn_cast_or_null<ObjCCategoryDecl>(CurContext))
Class = Category->getClassInterface();
if (!Class)
@ -4549,15 +4548,15 @@ void Sema::CodeCompleteObjCPropertyGetter(Scope *S, Decl *ClassDecl) {
Results.data(),Results.size());
}
void Sema::CodeCompleteObjCPropertySetter(Scope *S, Decl *ObjCImplDecl) {
void Sema::CodeCompleteObjCPropertySetter(Scope *S) {
typedef CodeCompletionResult Result;
// Try to find the interface where setters might live.
ObjCInterfaceDecl *Class
= dyn_cast_or_null<ObjCInterfaceDecl>(ObjCImplDecl);
= dyn_cast_or_null<ObjCInterfaceDecl>(CurContext);
if (!Class) {
if (ObjCCategoryDecl *Category
= dyn_cast_or_null<ObjCCategoryDecl>(ObjCImplDecl))
= dyn_cast_or_null<ObjCCategoryDecl>(CurContext))
Class = Category->getClassInterface();
if (!Class)
@ -5551,14 +5550,14 @@ void Sema::CodeCompleteObjCImplementationCategory(Scope *S,
Results.data(),Results.size());
}
void Sema::CodeCompleteObjCPropertyDefinition(Scope *S, Decl *ObjCImpDecl) {
void Sema::CodeCompleteObjCPropertyDefinition(Scope *S) {
typedef CodeCompletionResult Result;
ResultBuilder Results(*this, CodeCompleter->getAllocator(),
CodeCompletionContext::CCC_Other);
// Figure out where this @synthesize lives.
ObjCContainerDecl *Container
= dyn_cast_or_null<ObjCContainerDecl>(ObjCImpDecl);
= dyn_cast_or_null<ObjCContainerDecl>(CurContext);
if (!Container ||
(!isa<ObjCImplementationDecl>(Container) &&
!isa<ObjCCategoryImplDecl>(Container)))
@ -5591,15 +5590,14 @@ void Sema::CodeCompleteObjCPropertyDefinition(Scope *S, Decl *ObjCImpDecl) {
}
void Sema::CodeCompleteObjCPropertySynthesizeIvar(Scope *S,
IdentifierInfo *PropertyName,
Decl *ObjCImpDecl) {
IdentifierInfo *PropertyName) {
typedef CodeCompletionResult Result;
ResultBuilder Results(*this, CodeCompleter->getAllocator(),
CodeCompletionContext::CCC_Other);
// Figure out where this @synthesize lives.
ObjCContainerDecl *Container
= dyn_cast_or_null<ObjCContainerDecl>(ObjCImpDecl);
= dyn_cast_or_null<ObjCContainerDecl>(CurContext);
if (!Container ||
(!isa<ObjCImplementationDecl>(Container) &&
!isa<ObjCCategoryImplDecl>(Container)))
@ -6412,12 +6410,15 @@ static void AddObjCKeyValueCompletions(ObjCPropertyDecl *Property,
void Sema::CodeCompleteObjCMethodDecl(Scope *S,
bool IsInstanceMethod,
ParsedType ReturnTy,
Decl *IDecl) {
ParsedType ReturnTy) {
// Determine the return type of the method we're declaring, if
// provided.
QualType ReturnType = GetTypeFromParser(ReturnTy);
Decl *IDecl = 0;
if (CurContext->isObjCContainer()) {
ObjCContainerDecl *OCD = dyn_cast<ObjCContainerDecl>(CurContext);
IDecl = cast<Decl>(OCD);
}
// Determine where we should start searching for methods.
ObjCContainerDecl *SearchDecl = 0;
bool IsInImplementation = false;

34
clang/lib/Sema/SemaDecl.cpp
View File

@ -737,11 +737,6 @@ DeclContext *Sema::getContainingDC(DeclContext *DC) {
return DC;
}
// ObjCMethodDecls are parsed (for some reason) outside the context
// of the class.
if (isa<ObjCMethodDecl>(DC))
return DC->getLexicalParent()->getLexicalParent();
return DC->getLexicalParent();
}
@ -7732,6 +7727,15 @@ void Sema::ActOnTagStartDefinition(Scope *S, Decl *TagD) {
PushDeclContext(S, Tag);
}
void Sema::ActOnObjCContainerStartDefinition(Decl *IDecl) {
assert(isa<ObjCContainerDecl>(IDecl) &&
"ActOnObjCContainerStartDefinition - Not ObjCContainerDecl");
DeclContext *OCD = cast<DeclContext>(IDecl);
assert(getContainingDC(OCD) == CurContext &&
"The next DeclContext should be lexically contained in the current one.");
CurContext = OCD;
}
void Sema::ActOnStartCXXMemberDeclarations(Scope *S, Decl *TagD,
SourceLocation FinalLoc,
SourceLocation LBraceLoc) {
@ -7783,6 +7787,11 @@ void Sema::ActOnTagFinishDefinition(Scope *S, Decl *TagD,
Consumer.HandleTagDeclDefinition(Tag);
}
void Sema::ActOnObjCContainerFinishDefinition(Decl *IDecl) {
// Exit this scope of this interface definition.
PopDeclContext();
}
void Sema::ActOnTagDefinitionError(Scope *S, Decl *TagD) {
AdjustDeclIfTemplate(TagD);
TagDecl *Tag = cast<TagDecl>(TagD);
@ -8327,7 +8336,6 @@ TranslateIvarVisibility(tok::ObjCKeywordKind ivarVisibility) {
/// in order to create an IvarDecl object for it.
Decl *Sema::ActOnIvar(Scope *S,
SourceLocation DeclStart,
Decl *IntfDecl,
Declarator &D, ExprTy *BitfieldWidth,
tok::ObjCKeywordKind Visibility) {
@ -8370,7 +8378,7 @@ Decl *Sema::ActOnIvar(Scope *S,
Visibility != tok::objc_not_keyword ? TranslateIvarVisibility(Visibility)
: ObjCIvarDecl::None;
// Must set ivar's DeclContext to its enclosing interface.
ObjCContainerDecl *EnclosingDecl = cast<ObjCContainerDecl>(IntfDecl);
ObjCContainerDecl *EnclosingDecl = cast<ObjCContainerDecl>(CurContext);
ObjCContainerDecl *EnclosingContext;
if (ObjCImplementationDecl *IMPDecl =
dyn_cast<ObjCImplementationDecl>(EnclosingDecl)) {
@ -8432,7 +8440,7 @@ Decl *Sema::ActOnIvar(Scope *S,
/// class and class extensions. For every class @interface and class
/// extension @interface, if the last ivar is a bitfield of any type,
/// then add an implicit `char :0` ivar to the end of that interface.
void Sema::ActOnLastBitfield(SourceLocation DeclLoc, Decl *EnclosingDecl,
void Sema::ActOnLastBitfield(SourceLocation DeclLoc,
SmallVectorImpl<Decl *> &AllIvarDecls) {
if (!LangOpts.ObjCNonFragileABI2 || AllIvarDecls.empty())
return;
@ -8446,9 +8454,9 @@ void Sema::ActOnLastBitfield(SourceLocation DeclLoc, Decl *EnclosingDecl,
Ivar->getBitWidth()->EvaluateAsInt(Context).getZExtValue();
if (BitFieldSize == 0)
return;
ObjCInterfaceDecl *ID = dyn_cast<ObjCInterfaceDecl>(EnclosingDecl);
ObjCInterfaceDecl *ID = dyn_cast<ObjCInterfaceDecl>(CurContext);
if (!ID) {
if (ObjCCategoryDecl *CD = dyn_cast<ObjCCategoryDecl>(EnclosingDecl)) {
if (ObjCCategoryDecl *CD = dyn_cast<ObjCCategoryDecl>(CurContext)) {
if (!CD->IsClassExtension())
return;
}
@ -8460,7 +8468,7 @@ void Sema::ActOnLastBitfield(SourceLocation DeclLoc, Decl *EnclosingDecl,
llvm::APInt Zero(Context.getTypeSize(Context.IntTy), 0);
Expr * BW = IntegerLiteral::Create(Context, Zero, Context.IntTy, DeclLoc);
Ivar = ObjCIvarDecl::Create(Context, cast<ObjCContainerDecl>(EnclosingDecl),
Ivar = ObjCIvarDecl::Create(Context, cast<ObjCContainerDecl>(CurContext),
DeclLoc, DeclLoc, 0,
Context.CharTy,
Context.getTrivialTypeSourceInfo(Context.CharTy,
@ -9332,3 +9340,7 @@ void Sema::ActOnPragmaWeakAlias(IdentifierInfo* Name,
std::pair<IdentifierInfo*,WeakInfo>(AliasName, W));
}
}
Decl *Sema::getObjCDeclContext() const {
return (dyn_cast_or_null<ObjCContainerDecl>(CurContext));
}

24
clang/lib/Sema/SemaDeclObjC.cpp
View File

@ -2052,15 +2052,14 @@ void Sema::DiagnoseDuplicateIvars(ObjCInterfaceDecl *ID,
// Note: For class/category implemenations, allMethods/allProperties is
// always null.
void Sema::ActOnAtEnd(Scope *S, SourceRange AtEnd,
Decl *ClassDecl,
Decl **allMethods, unsigned allNum,
Decl **allProperties, unsigned pNum,
DeclGroupPtrTy *allTUVars, unsigned tuvNum) {
// FIXME: If we don't have a ClassDecl, we have an error. We should consider
// always passing in a decl. If the decl has an error, isInvalidDecl()
// should be true.
if (!ClassDecl)
if (!CurContext->isObjCContainer())
return;
ObjCContainerDecl *OCD = dyn_cast<ObjCContainerDecl>(CurContext);
Decl *ClassDecl = cast<Decl>(OCD);
bool isInterfaceDeclKind =
isa<ObjCInterfaceDecl>(ClassDecl) || isa<ObjCCategoryDecl>(ClassDecl)
@ -2427,7 +2426,7 @@ private:
Decl *Sema::ActOnMethodDeclaration(
Scope *S,
SourceLocation MethodLoc, SourceLocation EndLoc,
tok::TokenKind MethodType, Decl *ClassDecl,
tok::TokenKind MethodType,
ObjCDeclSpec &ReturnQT, ParsedType ReturnType,
SourceLocation SelectorStartLoc,
Selector Sel,
@ -2438,10 +2437,12 @@ Decl *Sema::ActOnMethodDeclaration(
AttributeList *AttrList, tok::ObjCKeywordKind MethodDeclKind,
bool isVariadic, bool MethodDefinition) {
// Make sure we can establish a context for the method.
if (!ClassDecl) {
if (!CurContext->isObjCContainer()) {
Diag(MethodLoc, diag::error_missing_method_context);
return 0;
}
ObjCContainerDecl *OCD = dyn_cast<ObjCContainerDecl>(CurContext);
Decl *ClassDecl = cast<Decl>(OCD);
QualType resultDeclType;
TypeSourceInfo *ResultTInfo = 0;
@ -2464,7 +2465,7 @@ Decl *Sema::ActOnMethodDeclaration(
ObjCMethodDecl* ObjCMethod =
ObjCMethodDecl::Create(Context, MethodLoc, EndLoc, Sel, resultDeclType,
ResultTInfo,
cast<DeclContext>(ClassDecl),
CurContext,
MethodType == tok::minus, isVariadic,
/*isSynthesized=*/false,
/*isImplicitlyDeclared=*/false, /*isDefined=*/false,
@ -2656,7 +2657,12 @@ Decl *Sema::ActOnMethodDeclaration(
bool Sema::CheckObjCDeclScope(Decl *D) {
if (isa<TranslationUnitDecl>(CurContext->getRedeclContext()))
return false;
// Following is also an error. But it is caused my a missing @end
// and diagnostic is issued elsewere.
if (isa<ObjCContainerDecl>(CurContext->getRedeclContext())) {
return false;
}
Diag(D->getLocation(), diag::err_objc_decls_may_only_appear_in_global_scope);
D->setInvalidDecl();

27
clang/lib/Sema/SemaObjCProperty.cpp
View File

@ -74,7 +74,6 @@ Decl *Sema::ActOnProperty(Scope *S, SourceLocation AtLoc,
ObjCDeclSpec &ODS,
Selector GetterSel,
Selector SetterSel,
Decl *ClassCategory,
bool *isOverridingProperty,
tok::ObjCKeywordKind MethodImplKind,
DeclContext *lexicalDC) {
@ -101,12 +100,11 @@ Decl *Sema::ActOnProperty(Scope *S, SourceLocation AtLoc,
!(Attributes & ObjCDeclSpec::DQ_PR_weak)));
// Proceed with constructing the ObjCPropertDecls.
ObjCContainerDecl *ClassDecl =
cast<ObjCContainerDecl>(ClassCategory);
ObjCContainerDecl *ClassDecl = cast<ObjCContainerDecl>(CurContext);
if (ObjCCategoryDecl *CDecl = dyn_cast<ObjCCategoryDecl>(ClassDecl))
if (CDecl->IsClassExtension()) {
Decl *Res = HandlePropertyInClassExtension(S, CDecl, AtLoc,
Decl *Res = HandlePropertyInClassExtension(S, AtLoc,
FD, GetterSel, SetterSel,
isAssign, isReadWrite,
Attributes,
@ -137,7 +135,7 @@ Decl *Sema::ActOnProperty(Scope *S, SourceLocation AtLoc,
}
Decl *
Sema::HandlePropertyInClassExtension(Scope *S, ObjCCategoryDecl *CDecl,
Sema::HandlePropertyInClassExtension(Scope *S,
SourceLocation AtLoc, FieldDeclarator &FD,
Selector GetterSel, Selector SetterSel,
const bool isAssign,
@ -146,9 +144,9 @@ Sema::HandlePropertyInClassExtension(Scope *S, ObjCCategoryDecl *CDecl,
bool *isOverridingProperty,
TypeSourceInfo *T,
tok::ObjCKeywordKind MethodImplKind) {
ObjCCategoryDecl *CDecl = dyn_cast<ObjCCategoryDecl>(CurContext);
// Diagnose if this property is already in continuation class.
DeclContext *DC = cast<DeclContext>(CDecl);
DeclContext *DC = CurContext;
IdentifierInfo *PropertyId = FD.D.getIdentifier();
ObjCInterfaceDecl *CCPrimary = CDecl->getClassInterface();
@ -235,14 +233,20 @@ Sema::HandlePropertyInClassExtension(Scope *S, ObjCCategoryDecl *CDecl,
ProtocolPropertyODS.
setPropertyAttributes((ObjCDeclSpec::ObjCPropertyAttributeKind)
PIkind);
// Must re-establish the context from class extension to primary
// class context.
ActOnObjCContainerFinishDefinition(CDecl);
ActOnObjCContainerStartDefinition(CCPrimary);
Decl *ProtocolPtrTy =
ActOnProperty(S, AtLoc, FD, ProtocolPropertyODS,
PIDecl->getGetterName(),
PIDecl->getSetterName(),
CCPrimary, isOverridingProperty,
isOverridingProperty,
MethodImplKind,
/* lexicalDC = */ CDecl);
// restore class extension context.
ActOnObjCContainerFinishDefinition(CCPrimary);
ActOnObjCContainerStartDefinition(CDecl);
PIDecl = cast<ObjCPropertyDecl>(ProtocolPtrTy);
}
PIDecl->makeitReadWriteAttribute();
@ -507,12 +511,11 @@ Decl *Sema::ActOnPropertyImplDecl(Scope *S,
SourceLocation AtLoc,
SourceLocation PropertyLoc,
bool Synthesize,
Decl *ClassCatImpDecl,
IdentifierInfo *PropertyId,
IdentifierInfo *PropertyIvar,
SourceLocation PropertyIvarLoc) {
ObjCContainerDecl *ClassImpDecl =
cast_or_null<ObjCContainerDecl>(ClassCatImpDecl);
cast_or_null<ObjCContainerDecl>(CurContext);
// Make sure we have a context for the property implementation declaration.
if (!ClassImpDecl) {
Diag(AtLoc, diag::error_missing_property_context);
@ -1280,7 +1283,7 @@ void Sema::DefaultSynthesizeProperties (Scope *S, ObjCImplDecl* IMPDecl,
// Saying that they are located at the @implementation isn't really going
// to help users.
ActOnPropertyImplDecl(S, SourceLocation(), SourceLocation(),
true,IMPDecl,
true,
Prop->getIdentifier(), Prop->getIdentifier(),
SourceLocation());
}

1
clang/test/Index/rdar-8288645-invalid-code.mm
View File

@ -5,4 +5,3 @@
extern "C" { @implementation Foo - (id)initWithBar:(Baz<WozBar>)pepper {
// CHECK: warning: cannot find interface declaration for 'Foo'
// CHECK: error: '@end' is missing in implementation context