1 //===--- CodeCompleteConsumer.cpp - Code Completion Interface ---*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file implements the CodeCompleteConsumer class.
12 //===----------------------------------------------------------------------===//
13 #include "clang/Sema/CodeCompleteConsumer.h"
14 #include "clang/AST/DeclCXX.h"
15 #include "clang/Parse/Scope.h"
16 #include "clang/Lex/Preprocessor.h"
17 #include "clang-c/Index.h"
19 #include "llvm/ADT/STLExtras.h"
20 #include "llvm/Support/raw_ostream.h"
25 using namespace clang;
26 using llvm::StringRef;
28 //===----------------------------------------------------------------------===//
29 // Code completion string implementation
30 //===----------------------------------------------------------------------===//
31 CodeCompletionString::Chunk::Chunk(ChunkKind Kind, llvm::StringRef Text)
32 : Kind(Kind), Text("")
40 case CK_CurrentParameter: {
41 char *New = new char [Text.size() + 1];
42 std::memcpy(New, Text.data(), Text.size());
43 New[Text.size()] = '\0';
49 llvm_unreachable("Optional strings cannot be created from text");
100 case CK_HorizontalSpace:
104 case CK_VerticalSpace:
110 CodeCompletionString::Chunk
111 CodeCompletionString::Chunk::CreateText(StringRef Text) {
112 return Chunk(CK_Text, Text);
115 CodeCompletionString::Chunk
116 CodeCompletionString::Chunk::CreateOptional(
117 std::auto_ptr<CodeCompletionString> Optional) {
119 Result.Kind = CK_Optional;
120 Result.Optional = Optional.release();
124 CodeCompletionString::Chunk
125 CodeCompletionString::Chunk::CreatePlaceholder(StringRef Placeholder) {
126 return Chunk(CK_Placeholder, Placeholder);
129 CodeCompletionString::Chunk
130 CodeCompletionString::Chunk::CreateInformative(StringRef Informative) {
131 return Chunk(CK_Informative, Informative);
134 CodeCompletionString::Chunk
135 CodeCompletionString::Chunk::CreateResultType(StringRef ResultType) {
136 return Chunk(CK_ResultType, ResultType);
139 CodeCompletionString::Chunk
140 CodeCompletionString::Chunk::CreateCurrentParameter(
141 StringRef CurrentParameter) {
142 return Chunk(CK_CurrentParameter, CurrentParameter);
145 CodeCompletionString::Chunk CodeCompletionString::Chunk::Clone() const {
152 case CK_CurrentParameter:
156 case CK_RightBracket:
165 case CK_HorizontalSpace:
166 case CK_VerticalSpace:
167 return Chunk(Kind, Text);
170 std::auto_ptr<CodeCompletionString> Opt(Optional->Clone());
171 return CreateOptional(Opt);
175 // Silence GCC warning.
180 CodeCompletionString::Chunk::Destroy() {
191 case CK_CurrentParameter:
198 case CK_RightBracket:
207 case CK_HorizontalSpace:
208 case CK_VerticalSpace:
213 CodeCompletionString::~CodeCompletionString() {
214 std::for_each(Chunks.begin(), Chunks.end(),
215 std::mem_fun_ref(&Chunk::Destroy));
218 std::string CodeCompletionString::getAsString() const {
220 llvm::raw_string_ostream OS(Result);
222 for (iterator C = begin(), CEnd = end(); C != CEnd; ++C) {
224 case CK_Optional: OS << "{#" << C->Optional->getAsString() << "#}"; break;
225 case CK_Placeholder: OS << "<#" << C->Text << "#>"; break;
229 OS << "[#" << C->Text << "#]";
232 case CK_CurrentParameter: OS << "<#" << C->Text << "#>"; break;
233 default: OS << C->Text; break;
240 const char *CodeCompletionString::getTypedText() const {
241 for (iterator C = begin(), CEnd = end(); C != CEnd; ++C)
242 if (C->Kind == CK_TypedText)
248 CodeCompletionString *CodeCompletionString::Clone() const {
249 CodeCompletionString *Result = new CodeCompletionString;
250 for (iterator C = begin(), CEnd = end(); C != CEnd; ++C)
251 Result->AddChunk(C->Clone());
255 static void WriteUnsigned(llvm::raw_ostream &OS, unsigned Value) {
256 OS.write((const char *)&Value, sizeof(unsigned));
259 static bool ReadUnsigned(const char *&Memory, const char *MemoryEnd,
261 if (Memory + sizeof(unsigned) > MemoryEnd)
264 memmove(&Value, Memory, sizeof(unsigned));
265 Memory += sizeof(unsigned);
269 void CodeCompletionString::Serialize(llvm::raw_ostream &OS) const {
270 // Write the number of chunks.
271 WriteUnsigned(OS, size());
273 for (iterator C = begin(), CEnd = end(); C != CEnd; ++C) {
274 WriteUnsigned(OS, C->Kind);
282 case CK_CurrentParameter: {
283 const char *Text = C->Text;
284 unsigned StrLen = strlen(Text);
285 WriteUnsigned(OS, StrLen);
286 OS.write(Text, StrLen);
291 C->Optional->Serialize(OS);
297 case CK_RightBracket:
306 case CK_HorizontalSpace:
307 case CK_VerticalSpace:
313 CodeCompletionString *CodeCompletionString::Deserialize(const char *&Str,
314 const char *StrEnd) {
315 if (Str == StrEnd || *Str == 0)
318 CodeCompletionString *Result = new CodeCompletionString;
320 if (ReadUnsigned(Str, StrEnd, NumBlocks))
323 for (unsigned I = 0; I != NumBlocks; ++I) {
324 if (Str + 1 >= StrEnd)
327 // Parse the next kind.
329 if (ReadUnsigned(Str, StrEnd, KindValue))
332 switch (ChunkKind Kind = (ChunkKind)KindValue) {
338 case CK_CurrentParameter: {
340 if (ReadUnsigned(Str, StrEnd, StrLen) || (Str + StrLen > StrEnd))
343 Result->AddChunk(Chunk(Kind, StringRef(Str, StrLen)));
349 std::auto_ptr<CodeCompletionString> Optional(Deserialize(Str, StrEnd));
350 Result->AddOptionalChunk(Optional);
357 case CK_RightBracket:
366 case CK_HorizontalSpace:
367 case CK_VerticalSpace:
368 Result->AddChunk(Chunk(Kind));
376 void CodeCompleteConsumer::Result::Destroy() {
377 if (Kind == RK_Pattern) {
383 //===----------------------------------------------------------------------===//
384 // Code completion overload candidate implementation
385 //===----------------------------------------------------------------------===//
387 CodeCompleteConsumer::OverloadCandidate::getFunction() const {
388 if (getKind() == CK_Function)
390 else if (getKind() == CK_FunctionTemplate)
391 return FunctionTemplate->getTemplatedDecl();
397 CodeCompleteConsumer::OverloadCandidate::getFunctionType() const {
400 return Function->getType()->getAs<FunctionType>();
402 case CK_FunctionTemplate:
403 return FunctionTemplate->getTemplatedDecl()->getType()
404 ->getAs<FunctionType>();
406 case CK_FunctionType:
413 //===----------------------------------------------------------------------===//
414 // Code completion consumer implementation
415 //===----------------------------------------------------------------------===//
417 CodeCompleteConsumer::~CodeCompleteConsumer() { }
420 PrintingCodeCompleteConsumer::ProcessCodeCompleteResults(Sema &SemaRef,
422 unsigned NumResults) {
423 // Print the results.
424 for (unsigned I = 0; I != NumResults; ++I) {
425 OS << "COMPLETION: ";
426 switch (Results[I].Kind) {
427 case Result::RK_Declaration:
428 OS << Results[I].Declaration->getNameAsString() ;
429 if (Results[I].Hidden)
431 if (CodeCompletionString *CCS
432 = Results[I].CreateCodeCompletionString(SemaRef)) {
433 OS << " : " << CCS->getAsString();
440 case Result::RK_Keyword:
441 OS << Results[I].Keyword << '\n';
444 case Result::RK_Macro: {
445 OS << Results[I].Macro->getName();
446 if (CodeCompletionString *CCS
447 = Results[I].CreateCodeCompletionString(SemaRef)) {
448 OS << " : " << CCS->getAsString();
455 case Result::RK_Pattern: {
457 << Results[I].Pattern->getAsString() << '\n';
463 // Once we've printed the code-completion results, suppress remaining
465 // FIXME: Move this somewhere else!
466 SemaRef.PP.getDiagnostics().setSuppressAllDiagnostics();
470 PrintingCodeCompleteConsumer::ProcessOverloadCandidates(Sema &SemaRef,
472 OverloadCandidate *Candidates,
473 unsigned NumCandidates) {
474 for (unsigned I = 0; I != NumCandidates; ++I) {
475 if (CodeCompletionString *CCS
476 = Candidates[I].CreateSignatureString(CurrentArg, SemaRef)) {
477 OS << "OVERLOAD: " << CCS->getAsString() << "\n";
482 // Once we've printed the code-completion results, suppress remaining
484 // FIXME: Move this somewhere else!
485 SemaRef.PP.getDiagnostics().setSuppressAllDiagnostics();
489 CIndexCodeCompleteConsumer::ProcessCodeCompleteResults(Sema &SemaRef,
491 unsigned NumResults) {
492 // Print the results.
493 for (unsigned I = 0; I != NumResults; ++I) {
494 CXCursorKind Kind = CXCursor_NotImplemented;
496 switch (Results[I].Kind) {
497 case Result::RK_Declaration:
498 switch (Results[I].Declaration->getKind()) {
500 case Decl::CXXRecord:
501 case Decl::ClassTemplateSpecialization: {
502 RecordDecl *Record = cast<RecordDecl>(Results[I].Declaration);
503 if (Record->isStruct())
504 Kind = CXCursor_StructDecl;
505 else if (Record->isUnion())
506 Kind = CXCursor_UnionDecl;
508 Kind = CXCursor_ClassDecl;
512 case Decl::ObjCMethod: {
513 ObjCMethodDecl *Method = cast<ObjCMethodDecl>(Results[I].Declaration);
514 if (Method->isInstanceMethod())
515 Kind = CXCursor_ObjCInstanceMethodDecl;
517 Kind = CXCursor_ObjCClassMethodDecl;
522 Kind = CXCursor_TypedefDecl;
526 Kind = CXCursor_EnumDecl;
530 Kind = CXCursor_FieldDecl;
533 case Decl::EnumConstant:
534 Kind = CXCursor_EnumConstantDecl;
538 case Decl::CXXMethod:
539 case Decl::CXXConstructor:
540 case Decl::CXXDestructor:
541 case Decl::CXXConversion:
542 Kind = CXCursor_FunctionDecl;
546 Kind = CXCursor_VarDecl;
550 Kind = CXCursor_ParmDecl;
553 case Decl::ObjCInterface:
554 Kind = CXCursor_ObjCInterfaceDecl;
557 case Decl::ObjCCategory:
558 Kind = CXCursor_ObjCCategoryDecl;
561 case Decl::ObjCProtocol:
562 Kind = CXCursor_ObjCProtocolDecl;
565 case Decl::ObjCProperty:
566 Kind = CXCursor_ObjCPropertyDecl;
570 Kind = CXCursor_ObjCIvarDecl;
573 case Decl::ObjCImplementation:
574 Kind = CXCursor_ObjCImplementationDecl;
577 case Decl::ObjCCategoryImpl:
578 Kind = CXCursor_ObjCCategoryImplDecl;
586 case Result::RK_Macro:
587 Kind = CXCursor_MacroDefinition;
590 case Result::RK_Keyword:
591 case Result::RK_Pattern:
592 Kind = CXCursor_NotImplemented;
596 WriteUnsigned(OS, Kind);
597 CodeCompletionString *CCS = Results[I].CreateCodeCompletionString(SemaRef);
598 assert(CCS && "No code-completion string?");
603 // Once we've printed the code-completion results, suppress remaining
605 // FIXME: Move this somewhere else!
606 SemaRef.PP.getDiagnostics().setSuppressAllDiagnostics();
610 CIndexCodeCompleteConsumer::ProcessOverloadCandidates(Sema &SemaRef,
612 OverloadCandidate *Candidates,
613 unsigned NumCandidates) {
614 for (unsigned I = 0; I != NumCandidates; ++I) {
615 WriteUnsigned(OS, CXCursor_NotImplemented);
616 CodeCompletionString *CCS
617 = Candidates[I].CreateSignatureString(CurrentArg, SemaRef);
618 assert(CCS && "No code-completion string?");
623 // Once we've printed the code-completion results, suppress remaining
625 // FIXME: Move this somewhere else!
626 SemaRef.PP.getDiagnostics().setSuppressAllDiagnostics();