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Implement support for code completion of an Objective-C message send to 

"id" or an expression of type "id". In these cases, we produce a list
of all of the (class or instance) methods, respectively, that we know about.

Note that this implementation does not yet work well with precompiled
headers; that's coming soon.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100528 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Douglas Gregor 2010-04-06 16:40:00 +00:00
Родитель 85372b93d1
Коммит 13438f9b9c
2 изменённых файлов: 88 добавлений и 9 удалений
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58
lib/Sema/SemaCodeComplete.cpp
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@ -2970,8 +2970,33 @@ void Sema::CodeCompleteObjCClassMessage(Scope *S, IdentifierInfo *FName,
// superclasses, categories, implementation, etc.
ResultBuilder Results(*this);
Results.EnterNewScope();
AddObjCMethods(CDecl, false, MK_Any, SelIdents, NumSelIdents, CurContext,
Results);
if (CDecl)
AddObjCMethods(CDecl, false, MK_Any, SelIdents, NumSelIdents, CurContext,
Results);
else if (FName->isStr("id")) {
// We're messaging "id" as a type; provide all class/factory methods.
// FIXME: Load the entire class method pool from the PCH file
for (llvm::DenseMap<Selector, ObjCMethodList>::iterator
M = FactoryMethodPool.begin(),
MEnd = FactoryMethodPool.end();
M != MEnd;
++M) {
for (ObjCMethodList *MethList = &M->second; MethList;
MethList = MethList->Next) {
if (!isAcceptableObjCMethod(MethList->Method, MK_Any, SelIdents,
NumSelIdents))
continue;
Result R(MethList->Method, 0);
R.StartParameter = NumSelIdents;
R.AllParametersAreInformative = false;
Results.MaybeAddResult(R, CurContext);
}
}
}
Results.ExitScope();
// This also suppresses remaining diagnostics.
@ -2990,12 +3015,6 @@ void Sema::CodeCompleteObjCInstanceMessage(Scope *S, ExprTy *Receiver,
DefaultFunctionArrayLvalueConversion(RecExpr);
QualType ReceiverType = RecExpr->getType();
if (ReceiverType->isObjCIdType() || ReceiverType->isBlockPointerType()) {
// FIXME: We're messaging 'id'. Do we actually want to look up every method
// in the universe?
return;
}
// Build the set of methods we can see.
ResultBuilder Results(*this);
Results.EnterNewScope();
@ -3035,7 +3054,28 @@ void Sema::CodeCompleteObjCInstanceMessage(Scope *S, ExprTy *Receiver,
AddObjCMethods(*I, true, MK_Any, SelIdents, NumSelIdents, CurContext,
Results);
}
// Handle messages to "id".
else if (ReceiverType->isObjCIdType()) {
// FIXME: Load the entire instance method pool from the PCH file
for (llvm::DenseMap<Selector, ObjCMethodList>::iterator
M = InstanceMethodPool.begin(),
MEnd = InstanceMethodPool.end();
M != MEnd;
++M) {
for (ObjCMethodList *MethList = &M->second; MethList;
MethList = MethList->Next) {
if (!isAcceptableObjCMethod(MethList->Method, MK_Any, SelIdents,
NumSelIdents))
continue;
Result R(MethList->Method, 0);
R.StartParameter = NumSelIdents;
R.AllParametersAreInformative = false;
Results.MaybeAddResult(R, CurContext);
}
}
}
Results.ExitScope();
HandleCodeCompleteResults(this, CodeCompleter, Results.data(),Results.size());
}

39
test/Index/complete-objc-message.m
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@ -116,6 +116,12 @@ void test_overload2(void) {
[Overload2 Method:1 Arg1:1 OtherArg:ovl];
}
void msg_id(id x) {
[x Method:1 Arg1:1 OtherArg:ovl];
[[x blarg] Method:1 Arg1:1 OtherArg:ovl];
[id Method:1 Arg1:1 OtherArg:ovl];
}
// RUN: c-index-test -code-completion-at=%s:23:19 %s | FileCheck -check-prefix=CHECK-CC1 %s
// CHECK-CC1: {TypedText categoryClassMethod}
// CHECK-CC1: {TypedText classMethod1:}{Placeholder (id)a}{HorizontalSpace }{Text withKeyword:}{Placeholder (int)b}
@ -192,3 +198,36 @@ void test_overload2(void) {
// CHECK-CCF: TypedefDecl:{TypedText SEL}
// CHECK-CCF: {ResultType Class}{TypedText self}
// CHECK-CCF: {TypedText super}
// RUN: c-index-test -code-completion-at=%s:120:6 %s | FileCheck -check-prefix=CHECK-CCG %s
// CHECK-CCG: ObjCInstanceMethodDecl:{ResultType id}{TypedText categoryInstanceMethod}
// CHECK-CCG: ObjCInstanceMethodDecl:{ResultType id}{TypedText instanceMethod1}
// CHECK-CCG: ObjCInstanceMethodDecl:{ResultType int}{TypedText Method}
// CHECK-CCG: ObjCInstanceMethodDecl:{ResultType int}{TypedText Method:}{Placeholder (int)i}
// CHECK-CCG: ObjCInstanceMethodDecl:{ResultType int}{TypedText Method:}{Placeholder (float)f}{HorizontalSpace }{Text Arg1:}{Placeholder (int)i1}{HorizontalSpace }{Text Arg2:}{Placeholder (int)i2}
// CHECK-CCG: ObjCInstanceMethodDecl:{ResultType int}{TypedText Method:}{Placeholder (float)f}{HorizontalSpace }{Text Arg1:}{Placeholder (int)i1}{HorizontalSpace }{Text OtherArg:}{Placeholder (id)obj}
// CHECK-CCG: ObjCInstanceMethodDecl:{ResultType int}{TypedText Method:}{Placeholder (float)f}{HorizontalSpace }{Text SomeArg:}{Placeholder (int)i1}{HorizontalSpace }{Text OtherArg:}{Placeholder (id)obj}
// CHECK-CCG: ObjCInstanceMethodDecl:{ResultType int}{TypedText MyInstMethod:}{Placeholder (id)x}{HorizontalSpace }{Text second:}{Placeholder (id)y}
// CHECK-CCG: ObjCInstanceMethodDecl:{ResultType int}{TypedText MyPrivateInstMethod}
// CHECK-CCG: ObjCInstanceMethodDecl:{ResultType int}{TypedText MySubInstMethod}
// CHECK-CCG: ObjCInstanceMethodDecl:{ResultType int}{TypedText MySubInstMethod:}{Placeholder (id)obj}
// CHECK-CCG: ObjCInstanceMethodDecl:{ResultType int}{TypedText OtherMethod:}{Placeholder (float)f}{HorizontalSpace }{Text Arg1:}{Placeholder (int)i1}{HorizontalSpace }{Text Arg2:}{Placeholder (int)i2}
// CHECK-CCG: ObjCInstanceMethodDecl:{ResultType id}{TypedText protocolInstanceMethod:}{Placeholder (int)value}
// CHECK-CCG: ObjCInstanceMethodDecl:{ResultType int}{TypedText secondProtocolInstanceMethod}
// RUN: c-index-test -code-completion-at=%s:121:14 %s | FileCheck -check-prefix=CHECK-CCG %s
// RUN: c-index-test -code-completion-at=%s:122:7 %s | FileCheck -check-prefix=CHECK-CCH %s
// CHECK-CCH: ObjCClassMethodDecl:{ResultType id}{TypedText categoryClassMethod}
// CHECK-CCH: ObjCClassMethodDecl:{ResultType int}{TypedText classMethod1:}{Placeholder (id)a}{HorizontalSpace }{Text withKeyword:}{Placeholder (int)b}
// CHECK-CCH: ObjCClassMethodDecl:{ResultType void}{TypedText classMethod2}
// CHECK-CCH: ObjCClassMethodDecl:{ResultType int}{TypedText Method}
// CHECK-CCH: ObjCClassMethodDecl:{ResultType int}{TypedText Method:}{Placeholder (int)i}
// CHECK-CCH: ObjCClassMethodDecl:{ResultType int}{TypedText Method:}{Placeholder (float)f}{HorizontalSpace }{Text Arg1:}{Placeholder (int)i1}{HorizontalSpace }{Text Arg2:}{Placeholder (int)i2}
// CHECK-CCH: ObjCClassMethodDecl:{ResultType int}{TypedText Method:}{Placeholder (float)f}{HorizontalSpace }{Text Arg1:}{Placeholder (int)i1}{HorizontalSpace }{Text OtherArg:}{Placeholder (id)obj}
// CHECK-CCH: ObjCClassMethodDecl:{ResultType int}{TypedText Method:}{Placeholder (float)f}{HorizontalSpace }{Text SomeArg:}{Placeholder (int)i1}{HorizontalSpace }{Text OtherArg:}{Placeholder (id)obj}
// CHECK-CCH: ObjCClassMethodDecl:{ResultType int}{TypedText MyClassMethod:}{Placeholder (id)obj}
// CHECK-CCH: ObjCClassMethodDecl:{ResultType int}{TypedText MyPrivateMethod}
// CHECK-CCH: ObjCClassMethodDecl:{ResultType int}{TypedText MySubClassMethod}
// CHECK-CCH: ObjCClassMethodDecl:{ResultType int}{TypedText MySubPrivateMethod}
// CHECK-CCH: ObjCClassMethodDecl:{ResultType id}{TypedText new}
// CHECK-CCH: ObjCClassMethodDecl:{ResultType int}{TypedText OtherMethod:}{Placeholder (float)f}{HorizontalSpace }{Text Arg1:}{Placeholder (int)i1}{HorizontalSpace }{Text Arg2:}{Placeholder (int)i2}
// CHECK-CCH: ObjCClassMethodDecl:{ResultType id}{TypedText protocolClassMethod}