forked from OSchip/llvm-project
1010 lines
35 KiB
C++
1010 lines
35 KiB
C++
//===- CIndexCodeCompletion.cpp - Code Completion API hooks ---------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements the Clang-C Source Indexing library hooks for
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// code completion.
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//
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//===----------------------------------------------------------------------===//
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#include "CIndexer.h"
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#include "CIndexDiagnostic.h"
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#include "CLog.h"
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#include "CXCursor.h"
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#include "CXString.h"
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#include "CXTranslationUnit.h"
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#include "clang/AST/Decl.h"
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#include "clang/AST/DeclObjC.h"
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#include "clang/AST/Type.h"
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#include "clang/Basic/FileManager.h"
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#include "clang/Basic/SourceManager.h"
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#include "clang/Frontend/ASTUnit.h"
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#include "clang/Frontend/CompilerInstance.h"
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#include "clang/Frontend/FrontendDiagnostic.h"
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#include "clang/Sema/CodeCompleteConsumer.h"
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#include "llvm/ADT/SmallString.h"
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#include "llvm/ADT/StringExtras.h"
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#include "llvm/Support/Atomic.h"
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#include "llvm/Support/CrashRecoveryContext.h"
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#include "llvm/Support/MemoryBuffer.h"
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#include "llvm/Support/Program.h"
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#include "llvm/Support/Timer.h"
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#include "llvm/Support/raw_ostream.h"
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#include <cstdio>
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#include <cstdlib>
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#ifdef UDP_CODE_COMPLETION_LOGGER
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#include "clang/Basic/Version.h"
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#include <arpa/inet.h>
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#include <sys/socket.h>
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#include <sys/types.h>
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#include <unistd.h>
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#endif
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using namespace clang;
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using namespace clang::cxstring;
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using namespace clang::cxindex;
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extern "C" {
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enum CXCompletionChunkKind
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clang_getCompletionChunkKind(CXCompletionString completion_string,
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unsigned chunk_number) {
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CodeCompletionString *CCStr = (CodeCompletionString *)completion_string;
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if (!CCStr || chunk_number >= CCStr->size())
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return CXCompletionChunk_Text;
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switch ((*CCStr)[chunk_number].Kind) {
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case CodeCompletionString::CK_TypedText:
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return CXCompletionChunk_TypedText;
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case CodeCompletionString::CK_Text:
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return CXCompletionChunk_Text;
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case CodeCompletionString::CK_Optional:
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return CXCompletionChunk_Optional;
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case CodeCompletionString::CK_Placeholder:
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return CXCompletionChunk_Placeholder;
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case CodeCompletionString::CK_Informative:
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return CXCompletionChunk_Informative;
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case CodeCompletionString::CK_ResultType:
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return CXCompletionChunk_ResultType;
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case CodeCompletionString::CK_CurrentParameter:
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return CXCompletionChunk_CurrentParameter;
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case CodeCompletionString::CK_LeftParen:
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return CXCompletionChunk_LeftParen;
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case CodeCompletionString::CK_RightParen:
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return CXCompletionChunk_RightParen;
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case CodeCompletionString::CK_LeftBracket:
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return CXCompletionChunk_LeftBracket;
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case CodeCompletionString::CK_RightBracket:
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return CXCompletionChunk_RightBracket;
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case CodeCompletionString::CK_LeftBrace:
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return CXCompletionChunk_LeftBrace;
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case CodeCompletionString::CK_RightBrace:
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return CXCompletionChunk_RightBrace;
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case CodeCompletionString::CK_LeftAngle:
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return CXCompletionChunk_LeftAngle;
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case CodeCompletionString::CK_RightAngle:
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return CXCompletionChunk_RightAngle;
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case CodeCompletionString::CK_Comma:
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return CXCompletionChunk_Comma;
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case CodeCompletionString::CK_Colon:
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return CXCompletionChunk_Colon;
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case CodeCompletionString::CK_SemiColon:
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return CXCompletionChunk_SemiColon;
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case CodeCompletionString::CK_Equal:
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return CXCompletionChunk_Equal;
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case CodeCompletionString::CK_HorizontalSpace:
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return CXCompletionChunk_HorizontalSpace;
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case CodeCompletionString::CK_VerticalSpace:
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return CXCompletionChunk_VerticalSpace;
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}
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llvm_unreachable("Invalid CompletionKind!");
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}
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CXString clang_getCompletionChunkText(CXCompletionString completion_string,
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unsigned chunk_number) {
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CodeCompletionString *CCStr = (CodeCompletionString *)completion_string;
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if (!CCStr || chunk_number >= CCStr->size())
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return createCXString((const char*)0);
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switch ((*CCStr)[chunk_number].Kind) {
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case CodeCompletionString::CK_TypedText:
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case CodeCompletionString::CK_Text:
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case CodeCompletionString::CK_Placeholder:
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case CodeCompletionString::CK_CurrentParameter:
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case CodeCompletionString::CK_Informative:
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case CodeCompletionString::CK_LeftParen:
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case CodeCompletionString::CK_RightParen:
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case CodeCompletionString::CK_LeftBracket:
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case CodeCompletionString::CK_RightBracket:
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case CodeCompletionString::CK_LeftBrace:
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case CodeCompletionString::CK_RightBrace:
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case CodeCompletionString::CK_LeftAngle:
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case CodeCompletionString::CK_RightAngle:
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case CodeCompletionString::CK_Comma:
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case CodeCompletionString::CK_ResultType:
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case CodeCompletionString::CK_Colon:
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case CodeCompletionString::CK_SemiColon:
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case CodeCompletionString::CK_Equal:
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case CodeCompletionString::CK_HorizontalSpace:
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case CodeCompletionString::CK_VerticalSpace:
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return createCXString((*CCStr)[chunk_number].Text, false);
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case CodeCompletionString::CK_Optional:
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// Note: treated as an empty text block.
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return createCXString("");
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}
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llvm_unreachable("Invalid CodeCompletionString Kind!");
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}
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CXCompletionString
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clang_getCompletionChunkCompletionString(CXCompletionString completion_string,
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unsigned chunk_number) {
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CodeCompletionString *CCStr = (CodeCompletionString *)completion_string;
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if (!CCStr || chunk_number >= CCStr->size())
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return 0;
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switch ((*CCStr)[chunk_number].Kind) {
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case CodeCompletionString::CK_TypedText:
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case CodeCompletionString::CK_Text:
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case CodeCompletionString::CK_Placeholder:
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case CodeCompletionString::CK_CurrentParameter:
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case CodeCompletionString::CK_Informative:
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case CodeCompletionString::CK_LeftParen:
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case CodeCompletionString::CK_RightParen:
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case CodeCompletionString::CK_LeftBracket:
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case CodeCompletionString::CK_RightBracket:
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case CodeCompletionString::CK_LeftBrace:
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case CodeCompletionString::CK_RightBrace:
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case CodeCompletionString::CK_LeftAngle:
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case CodeCompletionString::CK_RightAngle:
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case CodeCompletionString::CK_Comma:
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case CodeCompletionString::CK_ResultType:
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case CodeCompletionString::CK_Colon:
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case CodeCompletionString::CK_SemiColon:
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case CodeCompletionString::CK_Equal:
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case CodeCompletionString::CK_HorizontalSpace:
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case CodeCompletionString::CK_VerticalSpace:
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return 0;
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case CodeCompletionString::CK_Optional:
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// Note: treated as an empty text block.
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return (*CCStr)[chunk_number].Optional;
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}
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llvm_unreachable("Invalid CompletionKind!");
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}
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unsigned clang_getNumCompletionChunks(CXCompletionString completion_string) {
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CodeCompletionString *CCStr = (CodeCompletionString *)completion_string;
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return CCStr? CCStr->size() : 0;
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}
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unsigned clang_getCompletionPriority(CXCompletionString completion_string) {
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CodeCompletionString *CCStr = (CodeCompletionString *)completion_string;
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return CCStr? CCStr->getPriority() : unsigned(CCP_Unlikely);
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}
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enum CXAvailabilityKind
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clang_getCompletionAvailability(CXCompletionString completion_string) {
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CodeCompletionString *CCStr = (CodeCompletionString *)completion_string;
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return CCStr? static_cast<CXAvailabilityKind>(CCStr->getAvailability())
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: CXAvailability_Available;
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}
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unsigned clang_getCompletionNumAnnotations(CXCompletionString completion_string)
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{
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CodeCompletionString *CCStr = (CodeCompletionString *)completion_string;
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return CCStr ? CCStr->getAnnotationCount() : 0;
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}
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CXString clang_getCompletionAnnotation(CXCompletionString completion_string,
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unsigned annotation_number) {
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CodeCompletionString *CCStr = (CodeCompletionString *)completion_string;
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return CCStr ? createCXString(CCStr->getAnnotation(annotation_number))
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: createCXString((const char *) 0);
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}
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CXString
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clang_getCompletionParent(CXCompletionString completion_string,
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CXCursorKind *kind) {
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if (kind)
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*kind = CXCursor_NotImplemented;
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CodeCompletionString *CCStr = (CodeCompletionString *)completion_string;
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if (!CCStr)
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return createCXString((const char *)0);
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return createCXString(CCStr->getParentContextName(), /*DupString=*/false);
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}
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CXString
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clang_getCompletionBriefComment(CXCompletionString completion_string) {
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CodeCompletionString *CCStr = (CodeCompletionString *)completion_string;
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if (!CCStr)
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return createCXString((const char *) NULL);
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return createCXString(CCStr->getBriefComment(), /*DupString=*/false);
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}
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namespace {
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/// \brief The CXCodeCompleteResults structure we allocate internally;
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/// the client only sees the initial CXCodeCompleteResults structure.
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struct AllocatedCXCodeCompleteResults : public CXCodeCompleteResults {
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AllocatedCXCodeCompleteResults(const FileSystemOptions& FileSystemOpts);
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~AllocatedCXCodeCompleteResults();
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/// \brief Diagnostics produced while performing code completion.
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SmallVector<StoredDiagnostic, 8> Diagnostics;
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IntrusiveRefCntPtr<DiagnosticOptions> DiagOpts;
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/// \brief Diag object
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IntrusiveRefCntPtr<DiagnosticsEngine> Diag;
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/// \brief Language options used to adjust source locations.
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LangOptions LangOpts;
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FileSystemOptions FileSystemOpts;
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/// \brief File manager, used for diagnostics.
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IntrusiveRefCntPtr<FileManager> FileMgr;
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/// \brief Source manager, used for diagnostics.
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IntrusiveRefCntPtr<SourceManager> SourceMgr;
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/// \brief Temporary files that should be removed once we have finished
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/// with the code-completion results.
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std::vector<llvm::sys::Path> TemporaryFiles;
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/// \brief Temporary buffers that will be deleted once we have finished with
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/// the code-completion results.
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SmallVector<const llvm::MemoryBuffer *, 1> TemporaryBuffers;
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/// \brief Allocator used to store globally cached code-completion results.
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IntrusiveRefCntPtr<clang::GlobalCodeCompletionAllocator>
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CachedCompletionAllocator;
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/// \brief Allocator used to store code completion results.
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IntrusiveRefCntPtr<clang::GlobalCodeCompletionAllocator>
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CodeCompletionAllocator;
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/// \brief Context under which completion occurred.
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enum clang::CodeCompletionContext::Kind ContextKind;
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/// \brief A bitfield representing the acceptable completions for the
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/// current context.
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unsigned long long Contexts;
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/// \brief The kind of the container for the current context for completions.
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enum CXCursorKind ContainerKind;
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/// \brief The USR of the container for the current context for completions.
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CXString ContainerUSR;
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/// \brief a boolean value indicating whether there is complete information
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/// about the container
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unsigned ContainerIsIncomplete;
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/// \brief A string containing the Objective-C selector entered thus far for a
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/// message send.
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std::string Selector;
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};
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} // end anonymous namespace
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/// \brief Tracks the number of code-completion result objects that are
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/// currently active.
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///
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/// Used for debugging purposes only.
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static llvm::sys::cas_flag CodeCompletionResultObjects;
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AllocatedCXCodeCompleteResults::AllocatedCXCodeCompleteResults(
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const FileSystemOptions& FileSystemOpts)
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: CXCodeCompleteResults(),
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DiagOpts(new DiagnosticOptions),
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Diag(new DiagnosticsEngine(
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IntrusiveRefCntPtr<DiagnosticIDs>(new DiagnosticIDs),
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&*DiagOpts)),
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FileSystemOpts(FileSystemOpts),
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FileMgr(new FileManager(FileSystemOpts)),
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SourceMgr(new SourceManager(*Diag, *FileMgr)),
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CodeCompletionAllocator(new clang::GlobalCodeCompletionAllocator),
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Contexts(CXCompletionContext_Unknown),
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ContainerKind(CXCursor_InvalidCode),
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ContainerUSR(createCXString("")),
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ContainerIsIncomplete(1)
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{
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if (getenv("LIBCLANG_OBJTRACKING")) {
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llvm::sys::AtomicIncrement(&CodeCompletionResultObjects);
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fprintf(stderr, "+++ %d completion results\n", CodeCompletionResultObjects);
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}
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}
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AllocatedCXCodeCompleteResults::~AllocatedCXCodeCompleteResults() {
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delete [] Results;
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clang_disposeString(ContainerUSR);
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for (unsigned I = 0, N = TemporaryFiles.size(); I != N; ++I)
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TemporaryFiles[I].eraseFromDisk();
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for (unsigned I = 0, N = TemporaryBuffers.size(); I != N; ++I)
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delete TemporaryBuffers[I];
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if (getenv("LIBCLANG_OBJTRACKING")) {
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llvm::sys::AtomicDecrement(&CodeCompletionResultObjects);
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fprintf(stderr, "--- %d completion results\n", CodeCompletionResultObjects);
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}
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}
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} // end extern "C"
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static unsigned long long getContextsForContextKind(
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enum CodeCompletionContext::Kind kind,
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Sema &S) {
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unsigned long long contexts = 0;
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switch (kind) {
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case CodeCompletionContext::CCC_OtherWithMacros: {
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//We can allow macros here, but we don't know what else is permissible
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//So we'll say the only thing permissible are macros
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contexts = CXCompletionContext_MacroName;
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break;
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}
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case CodeCompletionContext::CCC_TopLevel:
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case CodeCompletionContext::CCC_ObjCIvarList:
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case CodeCompletionContext::CCC_ClassStructUnion:
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case CodeCompletionContext::CCC_Type: {
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contexts = CXCompletionContext_AnyType |
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CXCompletionContext_ObjCInterface;
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if (S.getLangOpts().CPlusPlus) {
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contexts |= CXCompletionContext_EnumTag |
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CXCompletionContext_UnionTag |
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CXCompletionContext_StructTag |
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CXCompletionContext_ClassTag |
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CXCompletionContext_NestedNameSpecifier;
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}
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break;
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}
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case CodeCompletionContext::CCC_Statement: {
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contexts = CXCompletionContext_AnyType |
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CXCompletionContext_ObjCInterface |
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CXCompletionContext_AnyValue;
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if (S.getLangOpts().CPlusPlus) {
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contexts |= CXCompletionContext_EnumTag |
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CXCompletionContext_UnionTag |
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CXCompletionContext_StructTag |
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CXCompletionContext_ClassTag |
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CXCompletionContext_NestedNameSpecifier;
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}
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break;
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}
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case CodeCompletionContext::CCC_Expression: {
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contexts = CXCompletionContext_AnyValue;
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if (S.getLangOpts().CPlusPlus) {
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contexts |= CXCompletionContext_AnyType |
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CXCompletionContext_ObjCInterface |
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CXCompletionContext_EnumTag |
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CXCompletionContext_UnionTag |
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CXCompletionContext_StructTag |
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CXCompletionContext_ClassTag |
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CXCompletionContext_NestedNameSpecifier;
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}
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break;
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}
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case CodeCompletionContext::CCC_ObjCMessageReceiver: {
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contexts = CXCompletionContext_ObjCObjectValue |
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CXCompletionContext_ObjCSelectorValue |
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CXCompletionContext_ObjCInterface;
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if (S.getLangOpts().CPlusPlus) {
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contexts |= CXCompletionContext_CXXClassTypeValue |
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CXCompletionContext_AnyType |
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CXCompletionContext_EnumTag |
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CXCompletionContext_UnionTag |
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CXCompletionContext_StructTag |
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CXCompletionContext_ClassTag |
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CXCompletionContext_NestedNameSpecifier;
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}
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break;
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}
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case CodeCompletionContext::CCC_DotMemberAccess: {
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contexts = CXCompletionContext_DotMemberAccess;
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break;
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}
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case CodeCompletionContext::CCC_ArrowMemberAccess: {
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contexts = CXCompletionContext_ArrowMemberAccess;
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break;
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}
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case CodeCompletionContext::CCC_ObjCPropertyAccess: {
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contexts = CXCompletionContext_ObjCPropertyAccess;
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break;
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}
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case CodeCompletionContext::CCC_EnumTag: {
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contexts = CXCompletionContext_EnumTag |
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CXCompletionContext_NestedNameSpecifier;
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break;
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}
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case CodeCompletionContext::CCC_UnionTag: {
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contexts = CXCompletionContext_UnionTag |
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CXCompletionContext_NestedNameSpecifier;
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break;
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}
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case CodeCompletionContext::CCC_ClassOrStructTag: {
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contexts = CXCompletionContext_StructTag |
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CXCompletionContext_ClassTag |
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CXCompletionContext_NestedNameSpecifier;
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break;
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}
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case CodeCompletionContext::CCC_ObjCProtocolName: {
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contexts = CXCompletionContext_ObjCProtocol;
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break;
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}
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case CodeCompletionContext::CCC_Namespace: {
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contexts = CXCompletionContext_Namespace;
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break;
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}
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case CodeCompletionContext::CCC_PotentiallyQualifiedName: {
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contexts = CXCompletionContext_NestedNameSpecifier;
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break;
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}
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case CodeCompletionContext::CCC_MacroNameUse: {
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contexts = CXCompletionContext_MacroName;
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break;
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}
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case CodeCompletionContext::CCC_NaturalLanguage: {
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contexts = CXCompletionContext_NaturalLanguage;
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break;
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}
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case CodeCompletionContext::CCC_SelectorName: {
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contexts = CXCompletionContext_ObjCSelectorName;
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break;
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}
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case CodeCompletionContext::CCC_ParenthesizedExpression: {
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contexts = CXCompletionContext_AnyType |
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CXCompletionContext_ObjCInterface |
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CXCompletionContext_AnyValue;
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if (S.getLangOpts().CPlusPlus) {
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contexts |= CXCompletionContext_EnumTag |
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CXCompletionContext_UnionTag |
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CXCompletionContext_StructTag |
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CXCompletionContext_ClassTag |
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CXCompletionContext_NestedNameSpecifier;
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}
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break;
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}
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case CodeCompletionContext::CCC_ObjCInstanceMessage: {
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contexts = CXCompletionContext_ObjCInstanceMessage;
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break;
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}
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case CodeCompletionContext::CCC_ObjCClassMessage: {
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contexts = CXCompletionContext_ObjCClassMessage;
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break;
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}
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case CodeCompletionContext::CCC_ObjCInterfaceName: {
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contexts = CXCompletionContext_ObjCInterface;
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break;
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}
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case CodeCompletionContext::CCC_ObjCCategoryName: {
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contexts = CXCompletionContext_ObjCCategory;
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break;
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}
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case CodeCompletionContext::CCC_Other:
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case CodeCompletionContext::CCC_ObjCInterface:
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case CodeCompletionContext::CCC_ObjCImplementation:
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case CodeCompletionContext::CCC_Name:
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case CodeCompletionContext::CCC_MacroName:
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case CodeCompletionContext::CCC_PreprocessorExpression:
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case CodeCompletionContext::CCC_PreprocessorDirective:
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case CodeCompletionContext::CCC_TypeQualifiers: {
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//Only Clang results should be accepted, so we'll set all of the other
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//context bits to 0 (i.e. the empty set)
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contexts = CXCompletionContext_Unexposed;
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break;
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}
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case CodeCompletionContext::CCC_Recovery: {
|
|
//We don't know what the current context is, so we'll return unknown
|
|
//This is the equivalent of setting all of the other context bits
|
|
contexts = CXCompletionContext_Unknown;
|
|
break;
|
|
}
|
|
}
|
|
return contexts;
|
|
}
|
|
|
|
namespace {
|
|
class CaptureCompletionResults : public CodeCompleteConsumer {
|
|
AllocatedCXCodeCompleteResults &AllocatedResults;
|
|
CodeCompletionTUInfo CCTUInfo;
|
|
SmallVector<CXCompletionResult, 16> StoredResults;
|
|
CXTranslationUnit *TU;
|
|
public:
|
|
CaptureCompletionResults(const CodeCompleteOptions &Opts,
|
|
AllocatedCXCodeCompleteResults &Results,
|
|
CXTranslationUnit *TranslationUnit)
|
|
: CodeCompleteConsumer(Opts, false),
|
|
AllocatedResults(Results), CCTUInfo(Results.CodeCompletionAllocator),
|
|
TU(TranslationUnit) { }
|
|
~CaptureCompletionResults() { Finish(); }
|
|
|
|
virtual void ProcessCodeCompleteResults(Sema &S,
|
|
CodeCompletionContext Context,
|
|
CodeCompletionResult *Results,
|
|
unsigned NumResults) {
|
|
StoredResults.reserve(StoredResults.size() + NumResults);
|
|
for (unsigned I = 0; I != NumResults; ++I) {
|
|
CodeCompletionString *StoredCompletion
|
|
= Results[I].CreateCodeCompletionString(S, getAllocator(),
|
|
getCodeCompletionTUInfo(),
|
|
includeBriefComments());
|
|
|
|
CXCompletionResult R;
|
|
R.CursorKind = Results[I].CursorKind;
|
|
R.CompletionString = StoredCompletion;
|
|
StoredResults.push_back(R);
|
|
}
|
|
|
|
enum CodeCompletionContext::Kind contextKind = Context.getKind();
|
|
|
|
AllocatedResults.ContextKind = contextKind;
|
|
AllocatedResults.Contexts = getContextsForContextKind(contextKind, S);
|
|
|
|
AllocatedResults.Selector = "";
|
|
if (Context.getNumSelIdents() > 0) {
|
|
for (unsigned i = 0; i < Context.getNumSelIdents(); i++) {
|
|
IdentifierInfo *selIdent = Context.getSelIdents()[i];
|
|
if (selIdent != NULL) {
|
|
StringRef selectorString = Context.getSelIdents()[i]->getName();
|
|
AllocatedResults.Selector += selectorString;
|
|
}
|
|
AllocatedResults.Selector += ":";
|
|
}
|
|
}
|
|
|
|
QualType baseType = Context.getBaseType();
|
|
NamedDecl *D = NULL;
|
|
|
|
if (!baseType.isNull()) {
|
|
// Get the declaration for a class/struct/union/enum type
|
|
if (const TagType *Tag = baseType->getAs<TagType>())
|
|
D = Tag->getDecl();
|
|
// Get the @interface declaration for a (possibly-qualified) Objective-C
|
|
// object pointer type, e.g., NSString*
|
|
else if (const ObjCObjectPointerType *ObjPtr =
|
|
baseType->getAs<ObjCObjectPointerType>())
|
|
D = ObjPtr->getInterfaceDecl();
|
|
// Get the @interface declaration for an Objective-C object type
|
|
else if (const ObjCObjectType *Obj = baseType->getAs<ObjCObjectType>())
|
|
D = Obj->getInterface();
|
|
// Get the class for a C++ injected-class-name
|
|
else if (const InjectedClassNameType *Injected =
|
|
baseType->getAs<InjectedClassNameType>())
|
|
D = Injected->getDecl();
|
|
}
|
|
|
|
if (D != NULL) {
|
|
CXCursor cursor = cxcursor::MakeCXCursor(D, *TU);
|
|
|
|
CXCursorKind cursorKind = clang_getCursorKind(cursor);
|
|
CXString cursorUSR = clang_getCursorUSR(cursor);
|
|
|
|
// Normally, clients of CXString shouldn't care whether or not
|
|
// a CXString is managed by a pool or by explicitly malloc'ed memory.
|
|
// However, there are cases when AllocatedResults outlives the
|
|
// CXTranslationUnit. This is a workaround that failure mode.
|
|
if (cxstring::isManagedByPool(cursorUSR)) {
|
|
CXString heapStr =
|
|
cxstring::createCXString(clang_getCString(cursorUSR), true);
|
|
clang_disposeString(cursorUSR);
|
|
cursorUSR = heapStr;
|
|
}
|
|
|
|
AllocatedResults.ContainerKind = cursorKind;
|
|
AllocatedResults.ContainerUSR = cursorUSR;
|
|
|
|
const Type *type = baseType.getTypePtrOrNull();
|
|
if (type != NULL) {
|
|
AllocatedResults.ContainerIsIncomplete = type->isIncompleteType();
|
|
}
|
|
else {
|
|
AllocatedResults.ContainerIsIncomplete = 1;
|
|
}
|
|
}
|
|
else {
|
|
AllocatedResults.ContainerKind = CXCursor_InvalidCode;
|
|
AllocatedResults.ContainerUSR = createCXString("");
|
|
AllocatedResults.ContainerIsIncomplete = 1;
|
|
}
|
|
}
|
|
|
|
virtual void ProcessOverloadCandidates(Sema &S, unsigned CurrentArg,
|
|
OverloadCandidate *Candidates,
|
|
unsigned NumCandidates) {
|
|
StoredResults.reserve(StoredResults.size() + NumCandidates);
|
|
for (unsigned I = 0; I != NumCandidates; ++I) {
|
|
CodeCompletionString *StoredCompletion
|
|
= Candidates[I].CreateSignatureString(CurrentArg, S, getAllocator(),
|
|
getCodeCompletionTUInfo());
|
|
|
|
CXCompletionResult R;
|
|
R.CursorKind = CXCursor_NotImplemented;
|
|
R.CompletionString = StoredCompletion;
|
|
StoredResults.push_back(R);
|
|
}
|
|
}
|
|
|
|
virtual CodeCompletionAllocator &getAllocator() {
|
|
return *AllocatedResults.CodeCompletionAllocator;
|
|
}
|
|
|
|
virtual CodeCompletionTUInfo &getCodeCompletionTUInfo() { return CCTUInfo; }
|
|
|
|
private:
|
|
void Finish() {
|
|
AllocatedResults.Results = new CXCompletionResult [StoredResults.size()];
|
|
AllocatedResults.NumResults = StoredResults.size();
|
|
std::memcpy(AllocatedResults.Results, StoredResults.data(),
|
|
StoredResults.size() * sizeof(CXCompletionResult));
|
|
StoredResults.clear();
|
|
}
|
|
};
|
|
}
|
|
|
|
extern "C" {
|
|
struct CodeCompleteAtInfo {
|
|
CXTranslationUnit TU;
|
|
const char *complete_filename;
|
|
unsigned complete_line;
|
|
unsigned complete_column;
|
|
struct CXUnsavedFile *unsaved_files;
|
|
unsigned num_unsaved_files;
|
|
unsigned options;
|
|
CXCodeCompleteResults *result;
|
|
};
|
|
void clang_codeCompleteAt_Impl(void *UserData) {
|
|
CodeCompleteAtInfo *CCAI = static_cast<CodeCompleteAtInfo*>(UserData);
|
|
CXTranslationUnit TU = CCAI->TU;
|
|
const char *complete_filename = CCAI->complete_filename;
|
|
unsigned complete_line = CCAI->complete_line;
|
|
unsigned complete_column = CCAI->complete_column;
|
|
struct CXUnsavedFile *unsaved_files = CCAI->unsaved_files;
|
|
unsigned num_unsaved_files = CCAI->num_unsaved_files;
|
|
unsigned options = CCAI->options;
|
|
bool IncludeBriefComments = options & CXCodeComplete_IncludeBriefComments;
|
|
CCAI->result = 0;
|
|
|
|
#ifdef UDP_CODE_COMPLETION_LOGGER
|
|
#ifdef UDP_CODE_COMPLETION_LOGGER_PORT
|
|
const llvm::TimeRecord &StartTime = llvm::TimeRecord::getCurrentTime();
|
|
#endif
|
|
#endif
|
|
|
|
bool EnableLogging = getenv("LIBCLANG_CODE_COMPLETION_LOGGING") != 0;
|
|
|
|
ASTUnit *AST = cxtu::getASTUnit(TU);
|
|
if (!AST)
|
|
return;
|
|
|
|
CIndexer *CXXIdx = TU->CIdx;
|
|
if (CXXIdx->isOptEnabled(CXGlobalOpt_ThreadBackgroundPriorityForEditing))
|
|
setThreadBackgroundPriority();
|
|
|
|
ASTUnit::ConcurrencyCheck Check(*AST);
|
|
|
|
// Perform the remapping of source files.
|
|
SmallVector<ASTUnit::RemappedFile, 4> RemappedFiles;
|
|
for (unsigned I = 0; I != num_unsaved_files; ++I) {
|
|
StringRef Data(unsaved_files[I].Contents, unsaved_files[I].Length);
|
|
const llvm::MemoryBuffer *Buffer
|
|
= llvm::MemoryBuffer::getMemBufferCopy(Data, unsaved_files[I].Filename);
|
|
RemappedFiles.push_back(std::make_pair(unsaved_files[I].Filename,
|
|
Buffer));
|
|
}
|
|
|
|
if (EnableLogging) {
|
|
// FIXME: Add logging.
|
|
}
|
|
|
|
// Parse the resulting source file to find code-completion results.
|
|
AllocatedCXCodeCompleteResults *Results =
|
|
new AllocatedCXCodeCompleteResults(AST->getFileSystemOpts());
|
|
Results->Results = 0;
|
|
Results->NumResults = 0;
|
|
|
|
// Create a code-completion consumer to capture the results.
|
|
CodeCompleteOptions Opts;
|
|
Opts.IncludeBriefComments = IncludeBriefComments;
|
|
CaptureCompletionResults Capture(Opts, *Results, &TU);
|
|
|
|
// Perform completion.
|
|
AST->CodeComplete(complete_filename, complete_line, complete_column,
|
|
RemappedFiles.data(), RemappedFiles.size(),
|
|
(options & CXCodeComplete_IncludeMacros),
|
|
(options & CXCodeComplete_IncludeCodePatterns),
|
|
IncludeBriefComments,
|
|
Capture,
|
|
*Results->Diag, Results->LangOpts, *Results->SourceMgr,
|
|
*Results->FileMgr, Results->Diagnostics,
|
|
Results->TemporaryBuffers);
|
|
|
|
// Keep a reference to the allocator used for cached global completions, so
|
|
// that we can be sure that the memory used by our code completion strings
|
|
// doesn't get freed due to subsequent reparses (while the code completion
|
|
// results are still active).
|
|
Results->CachedCompletionAllocator = AST->getCachedCompletionAllocator();
|
|
|
|
|
|
|
|
#ifdef UDP_CODE_COMPLETION_LOGGER
|
|
#ifdef UDP_CODE_COMPLETION_LOGGER_PORT
|
|
const llvm::TimeRecord &EndTime = llvm::TimeRecord::getCurrentTime();
|
|
SmallString<256> LogResult;
|
|
llvm::raw_svector_ostream os(LogResult);
|
|
|
|
// Figure out the language and whether or not it uses PCH.
|
|
const char *lang = 0;
|
|
bool usesPCH = false;
|
|
|
|
for (std::vector<const char*>::iterator I = argv.begin(), E = argv.end();
|
|
I != E; ++I) {
|
|
if (*I == 0)
|
|
continue;
|
|
if (strcmp(*I, "-x") == 0) {
|
|
if (I + 1 != E) {
|
|
lang = *(++I);
|
|
continue;
|
|
}
|
|
}
|
|
else if (strcmp(*I, "-include") == 0) {
|
|
if (I+1 != E) {
|
|
const char *arg = *(++I);
|
|
SmallString<512> pchName;
|
|
{
|
|
llvm::raw_svector_ostream os(pchName);
|
|
os << arg << ".pth";
|
|
}
|
|
pchName.push_back('\0');
|
|
struct stat stat_results;
|
|
if (stat(pchName.str().c_str(), &stat_results) == 0)
|
|
usesPCH = true;
|
|
continue;
|
|
}
|
|
}
|
|
}
|
|
|
|
os << "{ ";
|
|
os << "\"wall\": " << (EndTime.getWallTime() - StartTime.getWallTime());
|
|
os << ", \"numRes\": " << Results->NumResults;
|
|
os << ", \"diags\": " << Results->Diagnostics.size();
|
|
os << ", \"pch\": " << (usesPCH ? "true" : "false");
|
|
os << ", \"lang\": \"" << (lang ? lang : "<unknown>") << '"';
|
|
const char *name = getlogin();
|
|
os << ", \"user\": \"" << (name ? name : "unknown") << '"';
|
|
os << ", \"clangVer\": \"" << getClangFullVersion() << '"';
|
|
os << " }";
|
|
|
|
StringRef res = os.str();
|
|
if (res.size() > 0) {
|
|
do {
|
|
// Setup the UDP socket.
|
|
struct sockaddr_in servaddr;
|
|
bzero(&servaddr, sizeof(servaddr));
|
|
servaddr.sin_family = AF_INET;
|
|
servaddr.sin_port = htons(UDP_CODE_COMPLETION_LOGGER_PORT);
|
|
if (inet_pton(AF_INET, UDP_CODE_COMPLETION_LOGGER,
|
|
&servaddr.sin_addr) <= 0)
|
|
break;
|
|
|
|
int sockfd = socket(AF_INET, SOCK_DGRAM, 0);
|
|
if (sockfd < 0)
|
|
break;
|
|
|
|
sendto(sockfd, res.data(), res.size(), 0,
|
|
(struct sockaddr *)&servaddr, sizeof(servaddr));
|
|
close(sockfd);
|
|
}
|
|
while (false);
|
|
}
|
|
#endif
|
|
#endif
|
|
CCAI->result = Results;
|
|
}
|
|
CXCodeCompleteResults *clang_codeCompleteAt(CXTranslationUnit TU,
|
|
const char *complete_filename,
|
|
unsigned complete_line,
|
|
unsigned complete_column,
|
|
struct CXUnsavedFile *unsaved_files,
|
|
unsigned num_unsaved_files,
|
|
unsigned options) {
|
|
LOG_FUNC_SECTION {
|
|
*Log << TU << ' '
|
|
<< complete_filename << ':' << complete_line << ':' << complete_column;
|
|
}
|
|
|
|
CodeCompleteAtInfo CCAI = { TU, complete_filename, complete_line,
|
|
complete_column, unsaved_files, num_unsaved_files,
|
|
options, 0 };
|
|
|
|
if (getenv("LIBCLANG_NOTHREADS")) {
|
|
clang_codeCompleteAt_Impl(&CCAI);
|
|
return CCAI.result;
|
|
}
|
|
|
|
llvm::CrashRecoveryContext CRC;
|
|
|
|
if (!RunSafely(CRC, clang_codeCompleteAt_Impl, &CCAI)) {
|
|
fprintf(stderr, "libclang: crash detected in code completion\n");
|
|
cxtu::getASTUnit(TU)->setUnsafeToFree(true);
|
|
return 0;
|
|
} else if (getenv("LIBCLANG_RESOURCE_USAGE"))
|
|
PrintLibclangResourceUsage(TU);
|
|
|
|
return CCAI.result;
|
|
}
|
|
|
|
unsigned clang_defaultCodeCompleteOptions(void) {
|
|
return CXCodeComplete_IncludeMacros;
|
|
}
|
|
|
|
void clang_disposeCodeCompleteResults(CXCodeCompleteResults *ResultsIn) {
|
|
if (!ResultsIn)
|
|
return;
|
|
|
|
AllocatedCXCodeCompleteResults *Results
|
|
= static_cast<AllocatedCXCodeCompleteResults*>(ResultsIn);
|
|
delete Results;
|
|
}
|
|
|
|
unsigned
|
|
clang_codeCompleteGetNumDiagnostics(CXCodeCompleteResults *ResultsIn) {
|
|
AllocatedCXCodeCompleteResults *Results
|
|
= static_cast<AllocatedCXCodeCompleteResults*>(ResultsIn);
|
|
if (!Results)
|
|
return 0;
|
|
|
|
return Results->Diagnostics.size();
|
|
}
|
|
|
|
CXDiagnostic
|
|
clang_codeCompleteGetDiagnostic(CXCodeCompleteResults *ResultsIn,
|
|
unsigned Index) {
|
|
AllocatedCXCodeCompleteResults *Results
|
|
= static_cast<AllocatedCXCodeCompleteResults*>(ResultsIn);
|
|
if (!Results || Index >= Results->Diagnostics.size())
|
|
return 0;
|
|
|
|
return new CXStoredDiagnostic(Results->Diagnostics[Index], Results->LangOpts);
|
|
}
|
|
|
|
unsigned long long
|
|
clang_codeCompleteGetContexts(CXCodeCompleteResults *ResultsIn) {
|
|
AllocatedCXCodeCompleteResults *Results
|
|
= static_cast<AllocatedCXCodeCompleteResults*>(ResultsIn);
|
|
if (!Results)
|
|
return 0;
|
|
|
|
return Results->Contexts;
|
|
}
|
|
|
|
enum CXCursorKind clang_codeCompleteGetContainerKind(
|
|
CXCodeCompleteResults *ResultsIn,
|
|
unsigned *IsIncomplete) {
|
|
AllocatedCXCodeCompleteResults *Results =
|
|
static_cast<AllocatedCXCodeCompleteResults *>(ResultsIn);
|
|
if (!Results)
|
|
return CXCursor_InvalidCode;
|
|
|
|
if (IsIncomplete != NULL) {
|
|
*IsIncomplete = Results->ContainerIsIncomplete;
|
|
}
|
|
|
|
return Results->ContainerKind;
|
|
}
|
|
|
|
CXString clang_codeCompleteGetContainerUSR(CXCodeCompleteResults *ResultsIn) {
|
|
AllocatedCXCodeCompleteResults *Results =
|
|
static_cast<AllocatedCXCodeCompleteResults *>(ResultsIn);
|
|
if (!Results)
|
|
return createCXString("");
|
|
|
|
return createCXString(clang_getCString(Results->ContainerUSR));
|
|
}
|
|
|
|
|
|
CXString clang_codeCompleteGetObjCSelector(CXCodeCompleteResults *ResultsIn) {
|
|
AllocatedCXCodeCompleteResults *Results =
|
|
static_cast<AllocatedCXCodeCompleteResults *>(ResultsIn);
|
|
if (!Results)
|
|
return createCXString("");
|
|
|
|
return createCXString(Results->Selector);
|
|
}
|
|
|
|
} // end extern "C"
|
|
|
|
/// \brief Simple utility function that appends a \p New string to the given
|
|
/// \p Old string, using the \p Buffer for storage.
|
|
///
|
|
/// \param Old The string to which we are appending. This parameter will be
|
|
/// updated to reflect the complete string.
|
|
///
|
|
///
|
|
/// \param New The string to append to \p Old.
|
|
///
|
|
/// \param Buffer A buffer that stores the actual, concatenated string. It will
|
|
/// be used if the old string is already-non-empty.
|
|
static void AppendToString(StringRef &Old, StringRef New,
|
|
SmallString<256> &Buffer) {
|
|
if (Old.empty()) {
|
|
Old = New;
|
|
return;
|
|
}
|
|
|
|
if (Buffer.empty())
|
|
Buffer.append(Old.begin(), Old.end());
|
|
Buffer.append(New.begin(), New.end());
|
|
Old = Buffer.str();
|
|
}
|
|
|
|
/// \brief Get the typed-text blocks from the given code-completion string
|
|
/// and return them as a single string.
|
|
///
|
|
/// \param String The code-completion string whose typed-text blocks will be
|
|
/// concatenated.
|
|
///
|
|
/// \param Buffer A buffer used for storage of the completed name.
|
|
static StringRef GetTypedName(CodeCompletionString *String,
|
|
SmallString<256> &Buffer) {
|
|
StringRef Result;
|
|
for (CodeCompletionString::iterator C = String->begin(), CEnd = String->end();
|
|
C != CEnd; ++C) {
|
|
if (C->Kind == CodeCompletionString::CK_TypedText)
|
|
AppendToString(Result, C->Text, Buffer);
|
|
}
|
|
|
|
return Result;
|
|
}
|
|
|
|
namespace {
|
|
struct OrderCompletionResults {
|
|
bool operator()(const CXCompletionResult &XR,
|
|
const CXCompletionResult &YR) const {
|
|
CodeCompletionString *X
|
|
= (CodeCompletionString *)XR.CompletionString;
|
|
CodeCompletionString *Y
|
|
= (CodeCompletionString *)YR.CompletionString;
|
|
|
|
SmallString<256> XBuffer;
|
|
StringRef XText = GetTypedName(X, XBuffer);
|
|
SmallString<256> YBuffer;
|
|
StringRef YText = GetTypedName(Y, YBuffer);
|
|
|
|
if (XText.empty() || YText.empty())
|
|
return !XText.empty();
|
|
|
|
int result = XText.compare_lower(YText);
|
|
if (result < 0)
|
|
return true;
|
|
if (result > 0)
|
|
return false;
|
|
|
|
result = XText.compare(YText);
|
|
return result < 0;
|
|
}
|
|
};
|
|
}
|
|
|
|
extern "C" {
|
|
void clang_sortCodeCompletionResults(CXCompletionResult *Results,
|
|
unsigned NumResults) {
|
|
std::stable_sort(Results, Results + NumResults, OrderCompletionResults());
|
|
}
|
|
}
|