зеркало из https://github.com/microsoft/clang-1.git
636 строки
16 KiB
C++
636 строки
16 KiB
C++
//===--- CodeCompleteConsumer.cpp - Code Completion Interface ---*- C++ -*-===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file implements the CodeCompleteConsumer class.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
#include "clang/Sema/CodeCompleteConsumer.h"
|
|
#include "clang/Sema/Sema.h"
|
|
#include "clang/AST/DeclCXX.h"
|
|
#include "clang/Parse/Scope.h"
|
|
#include "clang/Lex/Preprocessor.h"
|
|
#include "clang-c/Index.h"
|
|
#include "llvm/ADT/STLExtras.h"
|
|
#include "llvm/Support/raw_ostream.h"
|
|
#include <algorithm>
|
|
#include <cstring>
|
|
#include <functional>
|
|
|
|
using namespace clang;
|
|
using llvm::StringRef;
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Code completion string implementation
|
|
//===----------------------------------------------------------------------===//
|
|
CodeCompletionString::Chunk::Chunk(ChunkKind Kind, llvm::StringRef Text)
|
|
: Kind(Kind), Text("")
|
|
{
|
|
switch (Kind) {
|
|
case CK_TypedText:
|
|
case CK_Text:
|
|
case CK_Placeholder:
|
|
case CK_Informative:
|
|
case CK_ResultType:
|
|
case CK_CurrentParameter: {
|
|
char *New = new char [Text.size() + 1];
|
|
std::memcpy(New, Text.data(), Text.size());
|
|
New[Text.size()] = '\0';
|
|
this->Text = New;
|
|
break;
|
|
}
|
|
|
|
case CK_Optional:
|
|
llvm_unreachable("Optional strings cannot be created from text");
|
|
break;
|
|
|
|
case CK_LeftParen:
|
|
this->Text = "(";
|
|
break;
|
|
|
|
case CK_RightParen:
|
|
this->Text = ")";
|
|
break;
|
|
|
|
case CK_LeftBracket:
|
|
this->Text = "[";
|
|
break;
|
|
|
|
case CK_RightBracket:
|
|
this->Text = "]";
|
|
break;
|
|
|
|
case CK_LeftBrace:
|
|
this->Text = "{";
|
|
break;
|
|
|
|
case CK_RightBrace:
|
|
this->Text = "}";
|
|
break;
|
|
|
|
case CK_LeftAngle:
|
|
this->Text = "<";
|
|
break;
|
|
|
|
case CK_RightAngle:
|
|
this->Text = ">";
|
|
break;
|
|
|
|
case CK_Comma:
|
|
this->Text = ", ";
|
|
break;
|
|
|
|
case CK_Colon:
|
|
this->Text = ":";
|
|
break;
|
|
|
|
case CK_SemiColon:
|
|
this->Text = ";";
|
|
break;
|
|
|
|
case CK_Equal:
|
|
this->Text = " = ";
|
|
break;
|
|
|
|
case CK_HorizontalSpace:
|
|
this->Text = " ";
|
|
break;
|
|
|
|
case CK_VerticalSpace:
|
|
this->Text = "\n";
|
|
break;
|
|
}
|
|
}
|
|
|
|
CodeCompletionString::Chunk
|
|
CodeCompletionString::Chunk::CreateText(StringRef Text) {
|
|
return Chunk(CK_Text, Text);
|
|
}
|
|
|
|
CodeCompletionString::Chunk
|
|
CodeCompletionString::Chunk::CreateOptional(
|
|
std::auto_ptr<CodeCompletionString> Optional) {
|
|
Chunk Result;
|
|
Result.Kind = CK_Optional;
|
|
Result.Optional = Optional.release();
|
|
return Result;
|
|
}
|
|
|
|
CodeCompletionString::Chunk
|
|
CodeCompletionString::Chunk::CreatePlaceholder(StringRef Placeholder) {
|
|
return Chunk(CK_Placeholder, Placeholder);
|
|
}
|
|
|
|
CodeCompletionString::Chunk
|
|
CodeCompletionString::Chunk::CreateInformative(StringRef Informative) {
|
|
return Chunk(CK_Informative, Informative);
|
|
}
|
|
|
|
CodeCompletionString::Chunk
|
|
CodeCompletionString::Chunk::CreateResultType(StringRef ResultType) {
|
|
return Chunk(CK_ResultType, ResultType);
|
|
}
|
|
|
|
CodeCompletionString::Chunk
|
|
CodeCompletionString::Chunk::CreateCurrentParameter(
|
|
StringRef CurrentParameter) {
|
|
return Chunk(CK_CurrentParameter, CurrentParameter);
|
|
}
|
|
|
|
CodeCompletionString::Chunk CodeCompletionString::Chunk::Clone() const {
|
|
switch (Kind) {
|
|
case CK_TypedText:
|
|
case CK_Text:
|
|
case CK_Placeholder:
|
|
case CK_Informative:
|
|
case CK_ResultType:
|
|
case CK_CurrentParameter:
|
|
case CK_LeftParen:
|
|
case CK_RightParen:
|
|
case CK_LeftBracket:
|
|
case CK_RightBracket:
|
|
case CK_LeftBrace:
|
|
case CK_RightBrace:
|
|
case CK_LeftAngle:
|
|
case CK_RightAngle:
|
|
case CK_Comma:
|
|
case CK_Colon:
|
|
case CK_SemiColon:
|
|
case CK_Equal:
|
|
case CK_HorizontalSpace:
|
|
case CK_VerticalSpace:
|
|
return Chunk(Kind, Text);
|
|
|
|
case CK_Optional: {
|
|
std::auto_ptr<CodeCompletionString> Opt(Optional->Clone());
|
|
return CreateOptional(Opt);
|
|
}
|
|
}
|
|
|
|
// Silence GCC warning.
|
|
return Chunk();
|
|
}
|
|
|
|
void
|
|
CodeCompletionString::Chunk::Destroy() {
|
|
switch (Kind) {
|
|
case CK_Optional:
|
|
delete Optional;
|
|
break;
|
|
|
|
case CK_TypedText:
|
|
case CK_Text:
|
|
case CK_Placeholder:
|
|
case CK_Informative:
|
|
case CK_ResultType:
|
|
case CK_CurrentParameter:
|
|
delete [] Text;
|
|
break;
|
|
|
|
case CK_LeftParen:
|
|
case CK_RightParen:
|
|
case CK_LeftBracket:
|
|
case CK_RightBracket:
|
|
case CK_LeftBrace:
|
|
case CK_RightBrace:
|
|
case CK_LeftAngle:
|
|
case CK_RightAngle:
|
|
case CK_Comma:
|
|
case CK_Colon:
|
|
case CK_SemiColon:
|
|
case CK_Equal:
|
|
case CK_HorizontalSpace:
|
|
case CK_VerticalSpace:
|
|
break;
|
|
}
|
|
}
|
|
|
|
void CodeCompletionString::clear() {
|
|
std::for_each(Chunks.begin(), Chunks.end(),
|
|
std::mem_fun_ref(&Chunk::Destroy));
|
|
Chunks.clear();
|
|
}
|
|
|
|
std::string CodeCompletionString::getAsString() const {
|
|
std::string Result;
|
|
llvm::raw_string_ostream OS(Result);
|
|
|
|
for (iterator C = begin(), CEnd = end(); C != CEnd; ++C) {
|
|
switch (C->Kind) {
|
|
case CK_Optional: OS << "{#" << C->Optional->getAsString() << "#}"; break;
|
|
case CK_Placeholder: OS << "<#" << C->Text << "#>"; break;
|
|
|
|
case CK_Informative:
|
|
case CK_ResultType:
|
|
OS << "[#" << C->Text << "#]";
|
|
break;
|
|
|
|
case CK_CurrentParameter: OS << "<#" << C->Text << "#>"; break;
|
|
default: OS << C->Text; break;
|
|
}
|
|
}
|
|
return OS.str();
|
|
}
|
|
|
|
const char *CodeCompletionString::getTypedText() const {
|
|
for (iterator C = begin(), CEnd = end(); C != CEnd; ++C)
|
|
if (C->Kind == CK_TypedText)
|
|
return C->Text;
|
|
|
|
return 0;
|
|
}
|
|
|
|
CodeCompletionString *
|
|
CodeCompletionString::Clone(CodeCompletionString *Result) const {
|
|
if (!Result)
|
|
Result = new CodeCompletionString;
|
|
for (iterator C = begin(), CEnd = end(); C != CEnd; ++C)
|
|
Result->AddChunk(C->Clone());
|
|
return Result;
|
|
}
|
|
|
|
static void WriteUnsigned(llvm::raw_ostream &OS, unsigned Value) {
|
|
OS.write((const char *)&Value, sizeof(unsigned));
|
|
}
|
|
|
|
static bool ReadUnsigned(const char *&Memory, const char *MemoryEnd,
|
|
unsigned &Value) {
|
|
if (Memory + sizeof(unsigned) > MemoryEnd)
|
|
return true;
|
|
|
|
memmove(&Value, Memory, sizeof(unsigned));
|
|
Memory += sizeof(unsigned);
|
|
return false;
|
|
}
|
|
|
|
void CodeCompletionString::Serialize(llvm::raw_ostream &OS) const {
|
|
// Write the number of chunks.
|
|
WriteUnsigned(OS, size());
|
|
|
|
for (iterator C = begin(), CEnd = end(); C != CEnd; ++C) {
|
|
WriteUnsigned(OS, C->Kind);
|
|
|
|
switch (C->Kind) {
|
|
case CK_TypedText:
|
|
case CK_Text:
|
|
case CK_Placeholder:
|
|
case CK_Informative:
|
|
case CK_ResultType:
|
|
case CK_CurrentParameter: {
|
|
const char *Text = C->Text;
|
|
unsigned StrLen = strlen(Text);
|
|
WriteUnsigned(OS, StrLen);
|
|
OS.write(Text, StrLen);
|
|
break;
|
|
}
|
|
|
|
case CK_Optional:
|
|
C->Optional->Serialize(OS);
|
|
break;
|
|
|
|
case CK_LeftParen:
|
|
case CK_RightParen:
|
|
case CK_LeftBracket:
|
|
case CK_RightBracket:
|
|
case CK_LeftBrace:
|
|
case CK_RightBrace:
|
|
case CK_LeftAngle:
|
|
case CK_RightAngle:
|
|
case CK_Comma:
|
|
case CK_Colon:
|
|
case CK_SemiColon:
|
|
case CK_Equal:
|
|
case CK_HorizontalSpace:
|
|
case CK_VerticalSpace:
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
bool CodeCompletionString::Deserialize(const char *&Str, const char *StrEnd) {
|
|
if (Str == StrEnd || *Str == 0)
|
|
return false;
|
|
|
|
unsigned NumBlocks;
|
|
if (ReadUnsigned(Str, StrEnd, NumBlocks))
|
|
return false;
|
|
|
|
for (unsigned I = 0; I != NumBlocks; ++I) {
|
|
if (Str + 1 >= StrEnd)
|
|
break;
|
|
|
|
// Parse the next kind.
|
|
unsigned KindValue;
|
|
if (ReadUnsigned(Str, StrEnd, KindValue))
|
|
return false;
|
|
|
|
switch (ChunkKind Kind = (ChunkKind)KindValue) {
|
|
case CK_TypedText:
|
|
case CK_Text:
|
|
case CK_Placeholder:
|
|
case CK_Informative:
|
|
case CK_ResultType:
|
|
case CK_CurrentParameter: {
|
|
unsigned StrLen;
|
|
if (ReadUnsigned(Str, StrEnd, StrLen) || (Str + StrLen > StrEnd))
|
|
return false;
|
|
|
|
AddChunk(Chunk(Kind, StringRef(Str, StrLen)));
|
|
Str += StrLen;
|
|
break;
|
|
}
|
|
|
|
case CK_Optional: {
|
|
std::auto_ptr<CodeCompletionString> Optional(new CodeCompletionString());
|
|
if (Optional->Deserialize(Str, StrEnd))
|
|
AddOptionalChunk(Optional);
|
|
break;
|
|
}
|
|
|
|
case CK_LeftParen:
|
|
case CK_RightParen:
|
|
case CK_LeftBracket:
|
|
case CK_RightBracket:
|
|
case CK_LeftBrace:
|
|
case CK_RightBrace:
|
|
case CK_LeftAngle:
|
|
case CK_RightAngle:
|
|
case CK_Comma:
|
|
case CK_Colon:
|
|
case CK_SemiColon:
|
|
case CK_Equal:
|
|
case CK_HorizontalSpace:
|
|
case CK_VerticalSpace:
|
|
AddChunk(Chunk(Kind));
|
|
break;
|
|
}
|
|
};
|
|
|
|
return true;
|
|
}
|
|
|
|
void CodeCompleteConsumer::Result::Destroy() {
|
|
if (Kind == RK_Pattern) {
|
|
delete Pattern;
|
|
Pattern = 0;
|
|
}
|
|
}
|
|
|
|
unsigned CodeCompleteConsumer::Result::getPriorityFromDecl(NamedDecl *ND) {
|
|
if (!ND)
|
|
return CCP_Unlikely;
|
|
|
|
// Context-based decisions.
|
|
DeclContext *DC = ND->getDeclContext()->getLookupContext();
|
|
if (DC->isFunctionOrMethod() || isa<BlockDecl>(DC))
|
|
return CCP_LocalDeclaration;
|
|
if (DC->isRecord() || isa<ObjCContainerDecl>(DC))
|
|
return CCP_MemberDeclaration;
|
|
|
|
// Content-based decisions.
|
|
if (isa<EnumConstantDecl>(ND))
|
|
return CCP_Constant;
|
|
if (isa<TypeDecl>(ND) || isa<ObjCInterfaceDecl>(ND))
|
|
return CCP_Type;
|
|
return CCP_Declaration;
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Code completion overload candidate implementation
|
|
//===----------------------------------------------------------------------===//
|
|
FunctionDecl *
|
|
CodeCompleteConsumer::OverloadCandidate::getFunction() const {
|
|
if (getKind() == CK_Function)
|
|
return Function;
|
|
else if (getKind() == CK_FunctionTemplate)
|
|
return FunctionTemplate->getTemplatedDecl();
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
const FunctionType *
|
|
CodeCompleteConsumer::OverloadCandidate::getFunctionType() const {
|
|
switch (Kind) {
|
|
case CK_Function:
|
|
return Function->getType()->getAs<FunctionType>();
|
|
|
|
case CK_FunctionTemplate:
|
|
return FunctionTemplate->getTemplatedDecl()->getType()
|
|
->getAs<FunctionType>();
|
|
|
|
case CK_FunctionType:
|
|
return Type;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Code completion consumer implementation
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
CodeCompleteConsumer::~CodeCompleteConsumer() { }
|
|
|
|
void
|
|
PrintingCodeCompleteConsumer::ProcessCodeCompleteResults(Sema &SemaRef,
|
|
CodeCompletionContext Context,
|
|
Result *Results,
|
|
unsigned NumResults) {
|
|
// Print the results.
|
|
for (unsigned I = 0; I != NumResults; ++I) {
|
|
OS << "COMPLETION: ";
|
|
switch (Results[I].Kind) {
|
|
case Result::RK_Declaration:
|
|
OS << Results[I].Declaration;
|
|
if (Results[I].Hidden)
|
|
OS << " (Hidden)";
|
|
if (CodeCompletionString *CCS
|
|
= Results[I].CreateCodeCompletionString(SemaRef)) {
|
|
OS << " : " << CCS->getAsString();
|
|
delete CCS;
|
|
}
|
|
|
|
OS << '\n';
|
|
break;
|
|
|
|
case Result::RK_Keyword:
|
|
OS << Results[I].Keyword << '\n';
|
|
break;
|
|
|
|
case Result::RK_Macro: {
|
|
OS << Results[I].Macro->getName();
|
|
if (CodeCompletionString *CCS
|
|
= Results[I].CreateCodeCompletionString(SemaRef)) {
|
|
OS << " : " << CCS->getAsString();
|
|
delete CCS;
|
|
}
|
|
OS << '\n';
|
|
break;
|
|
}
|
|
|
|
case Result::RK_Pattern: {
|
|
OS << "Pattern : "
|
|
<< Results[I].Pattern->getAsString() << '\n';
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
PrintingCodeCompleteConsumer::ProcessOverloadCandidates(Sema &SemaRef,
|
|
unsigned CurrentArg,
|
|
OverloadCandidate *Candidates,
|
|
unsigned NumCandidates) {
|
|
for (unsigned I = 0; I != NumCandidates; ++I) {
|
|
if (CodeCompletionString *CCS
|
|
= Candidates[I].CreateSignatureString(CurrentArg, SemaRef)) {
|
|
OS << "OVERLOAD: " << CCS->getAsString() << "\n";
|
|
delete CCS;
|
|
}
|
|
}
|
|
}
|
|
|
|
void CodeCompleteConsumer::Result::computeCursorKind() {
|
|
switch (Kind) {
|
|
case RK_Declaration:
|
|
switch (Declaration->getKind()) {
|
|
case Decl::Record:
|
|
case Decl::CXXRecord:
|
|
case Decl::ClassTemplateSpecialization: {
|
|
RecordDecl *Record = cast<RecordDecl>(Declaration);
|
|
if (Record->isStruct())
|
|
CursorKind = CXCursor_StructDecl;
|
|
else if (Record->isUnion())
|
|
CursorKind = CXCursor_UnionDecl;
|
|
else
|
|
CursorKind = CXCursor_ClassDecl;
|
|
break;
|
|
}
|
|
|
|
case Decl::ObjCMethod: {
|
|
ObjCMethodDecl *Method = cast<ObjCMethodDecl>(Declaration);
|
|
if (Method->isInstanceMethod())
|
|
CursorKind = CXCursor_ObjCInstanceMethodDecl;
|
|
else
|
|
CursorKind = CXCursor_ObjCClassMethodDecl;
|
|
break;
|
|
}
|
|
|
|
case Decl::Typedef:
|
|
CursorKind = CXCursor_TypedefDecl;
|
|
break;
|
|
|
|
case Decl::Enum:
|
|
CursorKind = CXCursor_EnumDecl;
|
|
break;
|
|
|
|
case Decl::Field:
|
|
CursorKind = CXCursor_FieldDecl;
|
|
break;
|
|
|
|
case Decl::EnumConstant:
|
|
CursorKind = CXCursor_EnumConstantDecl;
|
|
break;
|
|
|
|
case Decl::Function:
|
|
case Decl::CXXMethod:
|
|
case Decl::CXXConstructor:
|
|
case Decl::CXXDestructor:
|
|
case Decl::CXXConversion:
|
|
CursorKind = CXCursor_FunctionDecl;
|
|
break;
|
|
|
|
case Decl::Var:
|
|
CursorKind = CXCursor_VarDecl;
|
|
break;
|
|
|
|
case Decl::ParmVar:
|
|
CursorKind = CXCursor_ParmDecl;
|
|
break;
|
|
|
|
case Decl::ObjCInterface:
|
|
CursorKind = CXCursor_ObjCInterfaceDecl;
|
|
break;
|
|
|
|
case Decl::ObjCCategory:
|
|
CursorKind = CXCursor_ObjCCategoryDecl;
|
|
break;
|
|
|
|
case Decl::ObjCProtocol:
|
|
CursorKind = CXCursor_ObjCProtocolDecl;
|
|
break;
|
|
|
|
case Decl::ObjCProperty:
|
|
CursorKind = CXCursor_ObjCPropertyDecl;
|
|
break;
|
|
|
|
case Decl::ObjCIvar:
|
|
CursorKind = CXCursor_ObjCIvarDecl;
|
|
break;
|
|
|
|
case Decl::ObjCImplementation:
|
|
CursorKind = CXCursor_ObjCImplementationDecl;
|
|
break;
|
|
|
|
case Decl::ObjCCategoryImpl:
|
|
CursorKind = CXCursor_ObjCCategoryImplDecl;
|
|
break;
|
|
|
|
default:
|
|
CursorKind = CXCursor_NotImplemented;
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case Result::RK_Macro:
|
|
CursorKind = CXCursor_MacroDefinition;
|
|
break;
|
|
|
|
case Result::RK_Keyword:
|
|
CursorKind = CXCursor_NotImplemented;
|
|
break;
|
|
|
|
case Result::RK_Pattern:
|
|
// Do nothing: Patterns can come with cursor kinds!
|
|
break;
|
|
}
|
|
}
|
|
|
|
void
|
|
CIndexCodeCompleteConsumer::ProcessCodeCompleteResults(Sema &SemaRef,
|
|
CodeCompletionContext Context,
|
|
Result *Results,
|
|
unsigned NumResults) {
|
|
// Print the results.
|
|
for (unsigned I = 0; I != NumResults; ++I) {
|
|
WriteUnsigned(OS, Results[I].CursorKind);
|
|
WriteUnsigned(OS, Results[I].Priority);
|
|
CodeCompletionString *CCS = Results[I].CreateCodeCompletionString(SemaRef);
|
|
assert(CCS && "No code-completion string?");
|
|
CCS->Serialize(OS);
|
|
delete CCS;
|
|
}
|
|
}
|
|
|
|
void
|
|
CIndexCodeCompleteConsumer::ProcessOverloadCandidates(Sema &SemaRef,
|
|
unsigned CurrentArg,
|
|
OverloadCandidate *Candidates,
|
|
unsigned NumCandidates) {
|
|
for (unsigned I = 0; I != NumCandidates; ++I) {
|
|
WriteUnsigned(OS, CXCursor_NotImplemented);
|
|
WriteUnsigned(OS, /*Priority=*/0);
|
|
CodeCompletionString *CCS
|
|
= Candidates[I].CreateSignatureString(CurrentArg, SemaRef);
|
|
assert(CCS && "No code-completion string?");
|
|
CCS->Serialize(OS);
|
|
delete CCS;
|
|
}
|
|
}
|