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clang-1
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Objective-C code completion within properties after "setter = " or 

"getter = ", to provide suitable method names.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@89334 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Douglas Gregor 2009-11-19 07:41:15 +00:00
Родитель 217acbfa35
Коммит 4ad9685b3e
6 изменённых файлов: 215 добавлений и 40 удалений
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38
include/clang/Parse/Action.h
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@ -2331,6 +2331,44 @@ public:
/// \param S the scope in which the operator keyword occurs.
virtual void CodeCompleteObjCPropertyFlags(Scope *S, ObjCDeclSpec &ODS) { }
/// \brief Code completion for the getter of an Objective-C property
/// declaration.
///
/// This code completion action is invoked when the code-completion
/// token is found after the "getter = " in a property declaration.
///
/// \param S the scope in which the property is being declared.
///
/// \param ClassDecl the Objective-C class or category in which the property
/// is being defined.
///
/// \param Methods the set of methods declared thus far within \p ClassDecl.
///
/// \param NumMethods the number of methods in \p Methods
virtual void CodeCompleteObjCPropertyGetter(Scope *S, DeclPtrTy ClassDecl,
DeclPtrTy *Methods,
unsigned NumMethods) {
}
/// \brief Code completion for the setter of an Objective-C property
/// declaration.
///
/// This code completion action is invoked when the code-completion
/// token is found after the "setter = " in a property declaration.
///
/// \param S the scope in which the property is being declared.
///
/// \param ClassDecl the Objective-C class or category in which the property
/// is being defined.
///
/// \param Methods the set of methods declared thus far within \p ClassDecl.
///
/// \param NumMethods the number of methods in \p Methods
virtual void CodeCompleteObjCPropertySetter(Scope *S, DeclPtrTy ClassDecl,
DeclPtrTy *Methods,
unsigned NumMethods) {
}
/// \brief Code completion for an ObjC message expression that refers to
/// a class method.
///

3
include/clang/Parse/Parser.h
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@ -810,7 +810,8 @@ private:
DeclPtrTy ParseObjCMethodDecl(SourceLocation mLoc, tok::TokenKind mType,
DeclPtrTy classDecl,
tok::ObjCKeywordKind MethodImplKind = tok::objc_not_keyword);
void ParseObjCPropertyAttribute(ObjCDeclSpec &DS);
void ParseObjCPropertyAttribute(ObjCDeclSpec &DS, DeclPtrTy ClassDecl,
DeclPtrTy *Methods, unsigned NumMethods);
DeclPtrTy ParseObjCMethodDefinition();

16
include/clang/Sema/CodeCompleteConsumer.h
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@ -271,6 +271,10 @@ public:
/// nested-name-specifier and, therefore, should be followed by '::'.
bool StartsNestedNameSpecifier : 1;
/// \brief Whether all parameters (of a function, Objective-C
/// method, etc.) should be considered "informative".
bool AllParametersAreInformative : 1;
/// \brief If the result should have a nested-name-specifier, this is it.
/// When \c QualifierIsInformative, the nested-name-specifier is
/// informative rather than required.
@ -283,25 +287,29 @@ public:
: Kind(RK_Declaration), Declaration(Declaration), Rank(Rank),
StartParameter(0), Hidden(false),
QualifierIsInformative(QualifierIsInformative),
StartsNestedNameSpecifier(false), Qualifier(Qualifier) { }
StartsNestedNameSpecifier(false), AllParametersAreInformative(false),
Qualifier(Qualifier) { }
/// \brief Build a result that refers to a keyword or symbol.
Result(const char *Keyword, unsigned Rank)
: Kind(RK_Keyword), Keyword(Keyword), Rank(Rank), StartParameter(0),
Hidden(false), QualifierIsInformative(0),
StartsNestedNameSpecifier(false), Qualifier(0) { }
StartsNestedNameSpecifier(false), AllParametersAreInformative(false),
Qualifier(0) { }
/// \brief Build a result that refers to a macro.
Result(IdentifierInfo *Macro, unsigned Rank)
: Kind(RK_Macro), Macro(Macro), Rank(Rank), StartParameter(0),
Hidden(false), QualifierIsInformative(0),
StartsNestedNameSpecifier(false), Qualifier(0) { }
StartsNestedNameSpecifier(false), AllParametersAreInformative(false),
Qualifier(0) { }
/// \brief Build a result that refers to a pattern.
Result(CodeCompletionString *Pattern, unsigned Rank)
: Kind(RK_Pattern), Pattern(Pattern), Rank(Rank), StartParameter(0),
Hidden(false), QualifierIsInformative(0),
StartsNestedNameSpecifier(false), Qualifier(0) { }
StartsNestedNameSpecifier(false), AllParametersAreInformative(false),
Qualifier(0) { }
/// \brief Retrieve the declaration stored in this result.
NamedDecl *getDeclaration() const {

17
lib/Parse/ParseObjc.cpp
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@ -326,7 +326,8 @@ void Parser::ParseObjCInterfaceDeclList(DeclPtrTy interfaceDecl,
ObjCDeclSpec OCDS;
// Parse property attribute list, if any.
if (Tok.is(tok::l_paren))
ParseObjCPropertyAttribute(OCDS);
ParseObjCPropertyAttribute(OCDS, interfaceDecl,
allMethods.data(), allMethods.size());
struct ObjCPropertyCallback : FieldCallback {
Parser &P;
@ -425,7 +426,9 @@ void Parser::ParseObjCInterfaceDeclList(DeclPtrTy interfaceDecl,
/// copy
/// nonatomic
///
void Parser::ParseObjCPropertyAttribute(ObjCDeclSpec &DS) {
void Parser::ParseObjCPropertyAttribute(ObjCDeclSpec &DS, DeclPtrTy ClassDecl,
DeclPtrTy *Methods,
unsigned NumMethods) {
assert(Tok.getKind() == tok::l_paren);
SourceLocation LHSLoc = ConsumeParen(); // consume '('
@ -462,6 +465,16 @@ void Parser::ParseObjCPropertyAttribute(ObjCDeclSpec &DS) {
tok::r_paren))
return;
if (Tok.is(tok::code_completion)) {
if (II->getNameStart()[0] == 's')
Actions.CodeCompleteObjCPropertySetter(CurScope, ClassDecl,
Methods, NumMethods);
else
Actions.CodeCompleteObjCPropertyGetter(CurScope, ClassDecl,
Methods, NumMethods);
ConsumeToken();
}
if (Tok.isNot(tok::identifier)) {
Diag(Tok, diag::err_expected_ident);
SkipUntil(tok::r_paren);

7
lib/Sema/Sema.h
Просмотреть файл

@ -3647,6 +3647,13 @@ public:
virtual void CodeCompleteOperatorName(Scope *S);
virtual void CodeCompleteObjCPropertyFlags(Scope *S, ObjCDeclSpec &ODS);
virtual void CodeCompleteObjCPropertyGetter(Scope *S, DeclPtrTy ClassDecl,
DeclPtrTy *Methods,
unsigned NumMethods);
virtual void CodeCompleteObjCPropertySetter(Scope *S, DeclPtrTy ClassDecl,
DeclPtrTy *Methods,
unsigned NumMethods);
virtual void CodeCompleteObjCClassMessage(Scope *S, IdentifierInfo *FName,
SourceLocation FNameLoc,
IdentifierInfo **SelIdents,

166
lib/Sema/SemaCodeComplete.cpp
Просмотреть файл

@ -967,7 +967,7 @@ CodeCompleteConsumer::Result::CreateCodeCompletionString(Sema &S) {
if (IdentifierInfo *II = Sel.getIdentifierInfoForSlot(Idx))
Keyword += II->getName().str();
Keyword += ":";
if (Idx < StartParameter) {
if (Idx < StartParameter || AllParametersAreInformative) {
Result->AddInformativeChunk(Keyword);
} else if (Idx == StartParameter)
Result->AddTypedTextChunk(Keyword);
@ -984,6 +984,9 @@ CodeCompleteConsumer::Result::CreateCodeCompletionString(Sema &S) {
Arg = "(" + Arg + ")";
if (IdentifierInfo *II = (*P)->getIdentifier())
Arg += II->getName().str();
if (AllParametersAreInformative)
Result->AddInformativeChunk(Arg);
else
Result->AddPlaceholderChunk(Arg);
}
@ -1721,6 +1724,35 @@ void Sema::CodeCompleteObjCPropertyFlags(Scope *S, ObjCDeclSpec &ODS) {
HandleCodeCompleteResults(this, CodeCompleter, Results.data(),Results.size());
}
/// \brief Descripts the kind of Objective-C method that we want to find
/// via code completion.
enum ObjCMethodKind {
MK_Any, //< Any kind of method, provided it means other specified criteria.
MK_ZeroArgSelector, //< Zero-argument (unary) selector.
MK_OneArgSelector //< One-argument selector.
};
static bool isAcceptableObjCMethod(ObjCMethodDecl *Method,
ObjCMethodKind WantKind,
IdentifierInfo **SelIdents,
unsigned NumSelIdents) {
Selector Sel = Method->getSelector();
if (NumSelIdents > Sel.getNumArgs())
return false;
switch (WantKind) {
case MK_Any: break;
case MK_ZeroArgSelector: return Sel.isUnarySelector();
case MK_OneArgSelector: return Sel.getNumArgs() == 1;
}
for (unsigned I = 0; I != NumSelIdents; ++I)
if (SelIdents[I] != Sel.getIdentifierInfoForSlot(I))
return false;
return true;
}
/// \brief Add all of the Objective-C methods in the given Objective-C
/// container to the set of results.
///
@ -1740,6 +1772,7 @@ void Sema::CodeCompleteObjCPropertyFlags(Scope *S, ObjCDeclSpec &ODS) {
/// \param Results the structure into which we'll add results.
static void AddObjCMethods(ObjCContainerDecl *Container,
bool WantInstanceMethods,
ObjCMethodKind WantKind,
IdentifierInfo **SelIdents,
unsigned NumSelIdents,
DeclContext *CurContext,
@ -1751,20 +1784,12 @@ static void AddObjCMethods(ObjCContainerDecl *Container,
if ((*M)->isInstanceMethod() == WantInstanceMethods) {
// Check whether the selector identifiers we've been given are a
// subset of the identifiers for this particular method.
Selector Sel = (*M)->getSelector();
if (NumSelIdents > Sel.getNumArgs())
continue;
bool Failed = false;
for (unsigned I = 0; I != NumSelIdents && !Failed; ++I)
if (SelIdents[I] != Sel.getIdentifierInfoForSlot(I))
Failed = true;
if (Failed)
if (!isAcceptableObjCMethod(*M, WantKind, SelIdents, NumSelIdents))
continue;
Result R = Result(*M, 0);
R.StartParameter = NumSelIdents;
R.AllParametersAreInformative = (WantKind != MK_Any);
Results.MaybeAddResult(R, CurContext);
}
}
@ -1778,14 +1803,14 @@ static void AddObjCMethods(ObjCContainerDecl *Container,
for (ObjCList<ObjCProtocolDecl>::iterator I = Protocols.begin(),
E = Protocols.end();
I != E; ++I)
AddObjCMethods(*I, WantInstanceMethods, SelIdents, NumSelIdents,
AddObjCMethods(*I, WantInstanceMethods, WantKind, SelIdents, NumSelIdents,
CurContext, Results);
// Add methods in categories.
for (ObjCCategoryDecl *CatDecl = IFace->getCategoryList(); CatDecl;
CatDecl = CatDecl->getNextClassCategory()) {
AddObjCMethods(CatDecl, WantInstanceMethods, SelIdents, NumSelIdents,
CurContext, Results);
AddObjCMethods(CatDecl, WantInstanceMethods, WantKind, SelIdents,
NumSelIdents, CurContext, Results);
// Add a categories protocol methods.
const ObjCList<ObjCProtocolDecl> &Protocols
@ -1793,24 +1818,104 @@ static void AddObjCMethods(ObjCContainerDecl *Container,
for (ObjCList<ObjCProtocolDecl>::iterator I = Protocols.begin(),
E = Protocols.end();
I != E; ++I)
AddObjCMethods(*I, WantInstanceMethods, SelIdents, NumSelIdents,
CurContext, Results);
AddObjCMethods(*I, WantInstanceMethods, WantKind, SelIdents,
NumSelIdents, CurContext, Results);
// Add methods in category implementations.
if (ObjCCategoryImplDecl *Impl = CatDecl->getImplementation())
AddObjCMethods(Impl, WantInstanceMethods, SelIdents, NumSelIdents,
CurContext, Results);
AddObjCMethods(Impl, WantInstanceMethods, WantKind, SelIdents,
NumSelIdents, CurContext, Results);
}
// Add methods in superclass.
if (IFace->getSuperClass())
AddObjCMethods(IFace->getSuperClass(), WantInstanceMethods, SelIdents,
NumSelIdents, CurContext,Results);
AddObjCMethods(IFace->getSuperClass(), WantInstanceMethods, WantKind,
SelIdents, NumSelIdents, CurContext, Results);
// Add methods in our implementation, if any.
if (ObjCImplementationDecl *Impl = IFace->getImplementation())
AddObjCMethods(Impl, WantInstanceMethods, SelIdents, NumSelIdents,
CurContext, Results);
AddObjCMethods(Impl, WantInstanceMethods, WantKind, SelIdents,
NumSelIdents, CurContext, Results);
}
void Sema::CodeCompleteObjCPropertyGetter(Scope *S, DeclPtrTy ClassDecl,
DeclPtrTy *Methods,
unsigned NumMethods) {
typedef CodeCompleteConsumer::Result Result;
// Try to find the interface where getters might live.
ObjCInterfaceDecl *Class
= dyn_cast_or_null<ObjCInterfaceDecl>(ClassDecl.getAs<Decl>());
if (!Class) {
if (ObjCCategoryDecl *Category
= dyn_cast_or_null<ObjCCategoryDecl>(ClassDecl.getAs<Decl>()))
Class = Category->getClassInterface();
if (!Class)
return;
}
// Find all of the potential getters.
ResultBuilder Results(*this);
Results.EnterNewScope();
// FIXME: We need to do this because Objective-C methods don't get
// pushed into DeclContexts early enough. Argh!
for (unsigned I = 0; I != NumMethods; ++I) {
if (ObjCMethodDecl *Method
= dyn_cast_or_null<ObjCMethodDecl>(Methods[I].getAs<Decl>()))
if (Method->isInstanceMethod() &&
isAcceptableObjCMethod(Method, MK_ZeroArgSelector, 0, 0)) {
Result R = Result(Method, 0);
R.AllParametersAreInformative = true;
Results.MaybeAddResult(R, CurContext);
}
}
AddObjCMethods(Class, true, MK_ZeroArgSelector, 0, 0, CurContext, Results);
Results.ExitScope();
HandleCodeCompleteResults(this, CodeCompleter,Results.data(),Results.size());
}
void Sema::CodeCompleteObjCPropertySetter(Scope *S, DeclPtrTy ObjCImplDecl,
DeclPtrTy *Methods,
unsigned NumMethods) {
typedef CodeCompleteConsumer::Result Result;
// Try to find the interface where setters might live.
ObjCInterfaceDecl *Class
= dyn_cast_or_null<ObjCInterfaceDecl>(ObjCImplDecl.getAs<Decl>());
if (!Class) {
if (ObjCCategoryDecl *Category
= dyn_cast_or_null<ObjCCategoryDecl>(ObjCImplDecl.getAs<Decl>()))
Class = Category->getClassInterface();
if (!Class)
return;
}
// Find all of the potential getters.
ResultBuilder Results(*this);
Results.EnterNewScope();
// FIXME: We need to do this because Objective-C methods don't get
// pushed into DeclContexts early enough. Argh!
for (unsigned I = 0; I != NumMethods; ++I) {
if (ObjCMethodDecl *Method
= dyn_cast_or_null<ObjCMethodDecl>(Methods[I].getAs<Decl>()))
if (Method->isInstanceMethod() &&
isAcceptableObjCMethod(Method, MK_OneArgSelector, 0, 0)) {
Result R = Result(Method, 0);
R.AllParametersAreInformative = true;
Results.MaybeAddResult(R, CurContext);
}
}
AddObjCMethods(Class, true, MK_OneArgSelector, 0, 0, CurContext, Results);
Results.ExitScope();
HandleCodeCompleteResults(this, CodeCompleter,Results.data(),Results.size());
}
void Sema::CodeCompleteObjCClassMessage(Scope *S, IdentifierInfo *FName,
@ -1873,7 +1978,8 @@ void Sema::CodeCompleteObjCClassMessage(Scope *S, IdentifierInfo *FName,
// superclasses, categories, implementation, etc.
ResultBuilder Results(*this);
Results.EnterNewScope();
AddObjCMethods(CDecl, false, SelIdents, NumSelIdents, CurContext, Results);
AddObjCMethods(CDecl, false, MK_Any, SelIdents, NumSelIdents, CurContext,
Results);
Results.ExitScope();
// This also suppresses remaining diagnostics.
@ -1910,8 +2016,8 @@ void Sema::CodeCompleteObjCInstanceMessage(Scope *S, ExprTy *Receiver,
ReceiverType->isObjCQualifiedClassType()) {
if (ObjCMethodDecl *CurMethod = getCurMethodDecl()) {
if (ObjCInterfaceDecl *ClassDecl = CurMethod->getClassInterface())
AddObjCMethods(ClassDecl, false, SelIdents, NumSelIdents, CurContext,
Results);
AddObjCMethods(ClassDecl, false, MK_Any, SelIdents, NumSelIdents,
CurContext, Results);
}
}
// Handle messages to a qualified ID ("id<foo>").
@ -1921,20 +2027,22 @@ void Sema::CodeCompleteObjCInstanceMessage(Scope *S, ExprTy *Receiver,
for (ObjCObjectPointerType::qual_iterator I = QualID->qual_begin(),
E = QualID->qual_end();
I != E; ++I)
AddObjCMethods(*I, true, SelIdents, NumSelIdents, CurContext, Results);
AddObjCMethods(*I, true, MK_Any, SelIdents, NumSelIdents, CurContext,
Results);
}
// Handle messages to a pointer to interface type.
else if (const ObjCObjectPointerType *IFacePtr
= ReceiverType->getAsObjCInterfacePointerType()) {
// Search the class, its superclasses, etc., for instance methods.
AddObjCMethods(IFacePtr->getInterfaceDecl(), true, SelIdents, NumSelIdents,
CurContext, Results);
AddObjCMethods(IFacePtr->getInterfaceDecl(), true, MK_Any, SelIdents,
NumSelIdents, CurContext, Results);
// Search protocols for instance methods.
for (ObjCObjectPointerType::qual_iterator I = IFacePtr->qual_begin(),
E = IFacePtr->qual_end();
I != E; ++I)
AddObjCMethods(*I, true, SelIdents, NumSelIdents, CurContext, Results);
AddObjCMethods(*I, true, MK_Any, SelIdents, NumSelIdents, CurContext,
Results);
}
Results.ExitScope();