2938 lines
107 KiB
C++
2938 lines
107 KiB
C++
//===--- ASTUnit.cpp - ASTUnit utility ------------------------------------===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// ASTUnit Implementation.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "clang/Frontend/ASTUnit.h"
|
|
#include "clang/AST/ASTConsumer.h"
|
|
#include "clang/AST/ASTContext.h"
|
|
#include "clang/AST/DeclVisitor.h"
|
|
#include "clang/AST/StmtVisitor.h"
|
|
#include "clang/AST/TypeOrdering.h"
|
|
#include "clang/Basic/Diagnostic.h"
|
|
#include "clang/Basic/TargetInfo.h"
|
|
#include "clang/Basic/TargetOptions.h"
|
|
#include "clang/Frontend/CompilerInstance.h"
|
|
#include "clang/Frontend/FrontendActions.h"
|
|
#include "clang/Frontend/FrontendDiagnostic.h"
|
|
#include "clang/Frontend/FrontendOptions.h"
|
|
#include "clang/Frontend/MultiplexConsumer.h"
|
|
#include "clang/Frontend/Utils.h"
|
|
#include "clang/Lex/HeaderSearch.h"
|
|
#include "clang/Lex/Preprocessor.h"
|
|
#include "clang/Lex/PreprocessorOptions.h"
|
|
#include "clang/Serialization/ASTReader.h"
|
|
#include "clang/Serialization/ASTWriter.h"
|
|
#include "llvm/ADT/ArrayRef.h"
|
|
#include "llvm/ADT/StringExtras.h"
|
|
#include "llvm/ADT/StringSet.h"
|
|
#include "llvm/Support/Atomic.h"
|
|
#include "llvm/Support/CrashRecoveryContext.h"
|
|
#include "llvm/Support/FileSystem.h"
|
|
#include "llvm/Support/Host.h"
|
|
#include "llvm/Support/MemoryBuffer.h"
|
|
#include "llvm/Support/Mutex.h"
|
|
#include "llvm/Support/MutexGuard.h"
|
|
#include "llvm/Support/Path.h"
|
|
#include "llvm/Support/Timer.h"
|
|
#include "llvm/Support/raw_ostream.h"
|
|
#include <cstdio>
|
|
#include <cstdlib>
|
|
#include <sys/stat.h>
|
|
using namespace clang;
|
|
|
|
using llvm::TimeRecord;
|
|
|
|
namespace {
|
|
class SimpleTimer {
|
|
bool WantTiming;
|
|
TimeRecord Start;
|
|
std::string Output;
|
|
|
|
public:
|
|
explicit SimpleTimer(bool WantTiming) : WantTiming(WantTiming) {
|
|
if (WantTiming)
|
|
Start = TimeRecord::getCurrentTime();
|
|
}
|
|
|
|
void setOutput(const Twine &Output) {
|
|
if (WantTiming)
|
|
this->Output = Output.str();
|
|
}
|
|
|
|
~SimpleTimer() {
|
|
if (WantTiming) {
|
|
TimeRecord Elapsed = TimeRecord::getCurrentTime();
|
|
Elapsed -= Start;
|
|
llvm::errs() << Output << ':';
|
|
Elapsed.print(Elapsed, llvm::errs());
|
|
llvm::errs() << '\n';
|
|
}
|
|
}
|
|
};
|
|
|
|
struct OnDiskData {
|
|
/// \brief The file in which the precompiled preamble is stored.
|
|
std::string PreambleFile;
|
|
|
|
/// \brief Temporary files that should be removed when the ASTUnit is
|
|
/// destroyed.
|
|
SmallVector<llvm::sys::Path, 4> TemporaryFiles;
|
|
|
|
/// \brief Erase temporary files.
|
|
void CleanTemporaryFiles();
|
|
|
|
/// \brief Erase the preamble file.
|
|
void CleanPreambleFile();
|
|
|
|
/// \brief Erase temporary files and the preamble file.
|
|
void Cleanup();
|
|
};
|
|
}
|
|
|
|
static llvm::sys::SmartMutex<false> &getOnDiskMutex() {
|
|
static llvm::sys::SmartMutex<false> M(/* recursive = */ true);
|
|
return M;
|
|
}
|
|
|
|
static void cleanupOnDiskMapAtExit();
|
|
|
|
typedef llvm::DenseMap<const ASTUnit *, OnDiskData *> OnDiskDataMap;
|
|
static OnDiskDataMap &getOnDiskDataMap() {
|
|
static OnDiskDataMap M;
|
|
static bool hasRegisteredAtExit = false;
|
|
if (!hasRegisteredAtExit) {
|
|
hasRegisteredAtExit = true;
|
|
atexit(cleanupOnDiskMapAtExit);
|
|
}
|
|
return M;
|
|
}
|
|
|
|
static void cleanupOnDiskMapAtExit() {
|
|
// Use the mutex because there can be an alive thread destroying an ASTUnit.
|
|
llvm::MutexGuard Guard(getOnDiskMutex());
|
|
OnDiskDataMap &M = getOnDiskDataMap();
|
|
for (OnDiskDataMap::iterator I = M.begin(), E = M.end(); I != E; ++I) {
|
|
// We don't worry about freeing the memory associated with OnDiskDataMap.
|
|
// All we care about is erasing stale files.
|
|
I->second->Cleanup();
|
|
}
|
|
}
|
|
|
|
static OnDiskData &getOnDiskData(const ASTUnit *AU) {
|
|
// We require the mutex since we are modifying the structure of the
|
|
// DenseMap.
|
|
llvm::MutexGuard Guard(getOnDiskMutex());
|
|
OnDiskDataMap &M = getOnDiskDataMap();
|
|
OnDiskData *&D = M[AU];
|
|
if (!D)
|
|
D = new OnDiskData();
|
|
return *D;
|
|
}
|
|
|
|
static void erasePreambleFile(const ASTUnit *AU) {
|
|
getOnDiskData(AU).CleanPreambleFile();
|
|
}
|
|
|
|
static void removeOnDiskEntry(const ASTUnit *AU) {
|
|
// We require the mutex since we are modifying the structure of the
|
|
// DenseMap.
|
|
llvm::MutexGuard Guard(getOnDiskMutex());
|
|
OnDiskDataMap &M = getOnDiskDataMap();
|
|
OnDiskDataMap::iterator I = M.find(AU);
|
|
if (I != M.end()) {
|
|
I->second->Cleanup();
|
|
delete I->second;
|
|
M.erase(AU);
|
|
}
|
|
}
|
|
|
|
static void setPreambleFile(const ASTUnit *AU, StringRef preambleFile) {
|
|
getOnDiskData(AU).PreambleFile = preambleFile;
|
|
}
|
|
|
|
static const std::string &getPreambleFile(const ASTUnit *AU) {
|
|
return getOnDiskData(AU).PreambleFile;
|
|
}
|
|
|
|
void OnDiskData::CleanTemporaryFiles() {
|
|
for (unsigned I = 0, N = TemporaryFiles.size(); I != N; ++I)
|
|
TemporaryFiles[I].eraseFromDisk();
|
|
TemporaryFiles.clear();
|
|
}
|
|
|
|
void OnDiskData::CleanPreambleFile() {
|
|
if (!PreambleFile.empty()) {
|
|
llvm::sys::Path(PreambleFile).eraseFromDisk();
|
|
PreambleFile.clear();
|
|
}
|
|
}
|
|
|
|
void OnDiskData::Cleanup() {
|
|
CleanTemporaryFiles();
|
|
CleanPreambleFile();
|
|
}
|
|
|
|
struct ASTUnit::ASTWriterData {
|
|
SmallString<128> Buffer;
|
|
llvm::BitstreamWriter Stream;
|
|
ASTWriter Writer;
|
|
|
|
ASTWriterData() : Stream(Buffer), Writer(Stream) { }
|
|
};
|
|
|
|
void ASTUnit::clearFileLevelDecls() {
|
|
for (FileDeclsTy::iterator
|
|
I = FileDecls.begin(), E = FileDecls.end(); I != E; ++I)
|
|
delete I->second;
|
|
FileDecls.clear();
|
|
}
|
|
|
|
void ASTUnit::CleanTemporaryFiles() {
|
|
getOnDiskData(this).CleanTemporaryFiles();
|
|
}
|
|
|
|
void ASTUnit::addTemporaryFile(const llvm::sys::Path &TempFile) {
|
|
getOnDiskData(this).TemporaryFiles.push_back(TempFile);
|
|
}
|
|
|
|
/// \brief After failing to build a precompiled preamble (due to
|
|
/// errors in the source that occurs in the preamble), the number of
|
|
/// reparses during which we'll skip even trying to precompile the
|
|
/// preamble.
|
|
const unsigned DefaultPreambleRebuildInterval = 5;
|
|
|
|
/// \brief Tracks the number of ASTUnit objects that are currently active.
|
|
///
|
|
/// Used for debugging purposes only.
|
|
static llvm::sys::cas_flag ActiveASTUnitObjects;
|
|
|
|
ASTUnit::ASTUnit(bool _MainFileIsAST)
|
|
: Reader(0), OnlyLocalDecls(false), CaptureDiagnostics(false),
|
|
MainFileIsAST(_MainFileIsAST),
|
|
TUKind(TU_Complete), WantTiming(getenv("LIBCLANG_TIMING")),
|
|
OwnsRemappedFileBuffers(true),
|
|
NumStoredDiagnosticsFromDriver(0),
|
|
PreambleRebuildCounter(0), SavedMainFileBuffer(0), PreambleBuffer(0),
|
|
NumWarningsInPreamble(0),
|
|
ShouldCacheCodeCompletionResults(false),
|
|
IncludeBriefCommentsInCodeCompletion(false), UserFilesAreVolatile(false),
|
|
CompletionCacheTopLevelHashValue(0),
|
|
PreambleTopLevelHashValue(0),
|
|
CurrentTopLevelHashValue(0),
|
|
UnsafeToFree(false) {
|
|
if (getenv("LIBCLANG_OBJTRACKING")) {
|
|
llvm::sys::AtomicIncrement(&ActiveASTUnitObjects);
|
|
fprintf(stderr, "+++ %d translation units\n", ActiveASTUnitObjects);
|
|
}
|
|
}
|
|
|
|
ASTUnit::~ASTUnit() {
|
|
// If we loaded from an AST file, balance out the BeginSourceFile call.
|
|
if (MainFileIsAST && getDiagnostics().getClient()) {
|
|
getDiagnostics().getClient()->EndSourceFile();
|
|
}
|
|
|
|
clearFileLevelDecls();
|
|
|
|
// Clean up the temporary files and the preamble file.
|
|
removeOnDiskEntry(this);
|
|
|
|
// Free the buffers associated with remapped files. We are required to
|
|
// perform this operation here because we explicitly request that the
|
|
// compiler instance *not* free these buffers for each invocation of the
|
|
// parser.
|
|
if (Invocation.getPtr() && OwnsRemappedFileBuffers) {
|
|
PreprocessorOptions &PPOpts = Invocation->getPreprocessorOpts();
|
|
for (PreprocessorOptions::remapped_file_buffer_iterator
|
|
FB = PPOpts.remapped_file_buffer_begin(),
|
|
FBEnd = PPOpts.remapped_file_buffer_end();
|
|
FB != FBEnd;
|
|
++FB)
|
|
delete FB->second;
|
|
}
|
|
|
|
delete SavedMainFileBuffer;
|
|
delete PreambleBuffer;
|
|
|
|
ClearCachedCompletionResults();
|
|
|
|
if (getenv("LIBCLANG_OBJTRACKING")) {
|
|
llvm::sys::AtomicDecrement(&ActiveASTUnitObjects);
|
|
fprintf(stderr, "--- %d translation units\n", ActiveASTUnitObjects);
|
|
}
|
|
}
|
|
|
|
void ASTUnit::setPreprocessor(Preprocessor *pp) { PP = pp; }
|
|
|
|
/// \brief Determine the set of code-completion contexts in which this
|
|
/// declaration should be shown.
|
|
static unsigned getDeclShowContexts(const NamedDecl *ND,
|
|
const LangOptions &LangOpts,
|
|
bool &IsNestedNameSpecifier) {
|
|
IsNestedNameSpecifier = false;
|
|
|
|
if (isa<UsingShadowDecl>(ND))
|
|
ND = dyn_cast<NamedDecl>(ND->getUnderlyingDecl());
|
|
if (!ND)
|
|
return 0;
|
|
|
|
uint64_t Contexts = 0;
|
|
if (isa<TypeDecl>(ND) || isa<ObjCInterfaceDecl>(ND) ||
|
|
isa<ClassTemplateDecl>(ND) || isa<TemplateTemplateParmDecl>(ND)) {
|
|
// Types can appear in these contexts.
|
|
if (LangOpts.CPlusPlus || !isa<TagDecl>(ND))
|
|
Contexts |= (1LL << CodeCompletionContext::CCC_TopLevel)
|
|
| (1LL << CodeCompletionContext::CCC_ObjCIvarList)
|
|
| (1LL << CodeCompletionContext::CCC_ClassStructUnion)
|
|
| (1LL << CodeCompletionContext::CCC_Statement)
|
|
| (1LL << CodeCompletionContext::CCC_Type)
|
|
| (1LL << CodeCompletionContext::CCC_ParenthesizedExpression);
|
|
|
|
// In C++, types can appear in expressions contexts (for functional casts).
|
|
if (LangOpts.CPlusPlus)
|
|
Contexts |= (1LL << CodeCompletionContext::CCC_Expression);
|
|
|
|
// In Objective-C, message sends can send interfaces. In Objective-C++,
|
|
// all types are available due to functional casts.
|
|
if (LangOpts.CPlusPlus || isa<ObjCInterfaceDecl>(ND))
|
|
Contexts |= (1LL << CodeCompletionContext::CCC_ObjCMessageReceiver);
|
|
|
|
// In Objective-C, you can only be a subclass of another Objective-C class
|
|
if (isa<ObjCInterfaceDecl>(ND))
|
|
Contexts |= (1LL << CodeCompletionContext::CCC_ObjCInterfaceName);
|
|
|
|
// Deal with tag names.
|
|
if (isa<EnumDecl>(ND)) {
|
|
Contexts |= (1LL << CodeCompletionContext::CCC_EnumTag);
|
|
|
|
// Part of the nested-name-specifier in C++0x.
|
|
if (LangOpts.CPlusPlus11)
|
|
IsNestedNameSpecifier = true;
|
|
} else if (const RecordDecl *Record = dyn_cast<RecordDecl>(ND)) {
|
|
if (Record->isUnion())
|
|
Contexts |= (1LL << CodeCompletionContext::CCC_UnionTag);
|
|
else
|
|
Contexts |= (1LL << CodeCompletionContext::CCC_ClassOrStructTag);
|
|
|
|
if (LangOpts.CPlusPlus)
|
|
IsNestedNameSpecifier = true;
|
|
} else if (isa<ClassTemplateDecl>(ND))
|
|
IsNestedNameSpecifier = true;
|
|
} else if (isa<ValueDecl>(ND) || isa<FunctionTemplateDecl>(ND)) {
|
|
// Values can appear in these contexts.
|
|
Contexts = (1LL << CodeCompletionContext::CCC_Statement)
|
|
| (1LL << CodeCompletionContext::CCC_Expression)
|
|
| (1LL << CodeCompletionContext::CCC_ParenthesizedExpression)
|
|
| (1LL << CodeCompletionContext::CCC_ObjCMessageReceiver);
|
|
} else if (isa<ObjCProtocolDecl>(ND)) {
|
|
Contexts = (1LL << CodeCompletionContext::CCC_ObjCProtocolName);
|
|
} else if (isa<ObjCCategoryDecl>(ND)) {
|
|
Contexts = (1LL << CodeCompletionContext::CCC_ObjCCategoryName);
|
|
} else if (isa<NamespaceDecl>(ND) || isa<NamespaceAliasDecl>(ND)) {
|
|
Contexts = (1LL << CodeCompletionContext::CCC_Namespace);
|
|
|
|
// Part of the nested-name-specifier.
|
|
IsNestedNameSpecifier = true;
|
|
}
|
|
|
|
return Contexts;
|
|
}
|
|
|
|
void ASTUnit::CacheCodeCompletionResults() {
|
|
if (!TheSema)
|
|
return;
|
|
|
|
SimpleTimer Timer(WantTiming);
|
|
Timer.setOutput("Cache global code completions for " + getMainFileName());
|
|
|
|
// Clear out the previous results.
|
|
ClearCachedCompletionResults();
|
|
|
|
// Gather the set of global code completions.
|
|
typedef CodeCompletionResult Result;
|
|
SmallVector<Result, 8> Results;
|
|
CachedCompletionAllocator = new GlobalCodeCompletionAllocator;
|
|
CodeCompletionTUInfo CCTUInfo(CachedCompletionAllocator);
|
|
TheSema->GatherGlobalCodeCompletions(*CachedCompletionAllocator,
|
|
CCTUInfo, Results);
|
|
|
|
// Translate global code completions into cached completions.
|
|
llvm::DenseMap<CanQualType, unsigned> CompletionTypes;
|
|
|
|
for (unsigned I = 0, N = Results.size(); I != N; ++I) {
|
|
switch (Results[I].Kind) {
|
|
case Result::RK_Declaration: {
|
|
bool IsNestedNameSpecifier = false;
|
|
CachedCodeCompletionResult CachedResult;
|
|
CachedResult.Completion = Results[I].CreateCodeCompletionString(*TheSema,
|
|
*CachedCompletionAllocator,
|
|
CCTUInfo,
|
|
IncludeBriefCommentsInCodeCompletion);
|
|
CachedResult.ShowInContexts = getDeclShowContexts(Results[I].Declaration,
|
|
Ctx->getLangOpts(),
|
|
IsNestedNameSpecifier);
|
|
CachedResult.Priority = Results[I].Priority;
|
|
CachedResult.Kind = Results[I].CursorKind;
|
|
CachedResult.Availability = Results[I].Availability;
|
|
|
|
// Keep track of the type of this completion in an ASTContext-agnostic
|
|
// way.
|
|
QualType UsageType = getDeclUsageType(*Ctx, Results[I].Declaration);
|
|
if (UsageType.isNull()) {
|
|
CachedResult.TypeClass = STC_Void;
|
|
CachedResult.Type = 0;
|
|
} else {
|
|
CanQualType CanUsageType
|
|
= Ctx->getCanonicalType(UsageType.getUnqualifiedType());
|
|
CachedResult.TypeClass = getSimplifiedTypeClass(CanUsageType);
|
|
|
|
// Determine whether we have already seen this type. If so, we save
|
|
// ourselves the work of formatting the type string by using the
|
|
// temporary, CanQualType-based hash table to find the associated value.
|
|
unsigned &TypeValue = CompletionTypes[CanUsageType];
|
|
if (TypeValue == 0) {
|
|
TypeValue = CompletionTypes.size();
|
|
CachedCompletionTypes[QualType(CanUsageType).getAsString()]
|
|
= TypeValue;
|
|
}
|
|
|
|
CachedResult.Type = TypeValue;
|
|
}
|
|
|
|
CachedCompletionResults.push_back(CachedResult);
|
|
|
|
/// Handle nested-name-specifiers in C++.
|
|
if (TheSema->Context.getLangOpts().CPlusPlus &&
|
|
IsNestedNameSpecifier && !Results[I].StartsNestedNameSpecifier) {
|
|
// The contexts in which a nested-name-specifier can appear in C++.
|
|
uint64_t NNSContexts
|
|
= (1LL << CodeCompletionContext::CCC_TopLevel)
|
|
| (1LL << CodeCompletionContext::CCC_ObjCIvarList)
|
|
| (1LL << CodeCompletionContext::CCC_ClassStructUnion)
|
|
| (1LL << CodeCompletionContext::CCC_Statement)
|
|
| (1LL << CodeCompletionContext::CCC_Expression)
|
|
| (1LL << CodeCompletionContext::CCC_ObjCMessageReceiver)
|
|
| (1LL << CodeCompletionContext::CCC_EnumTag)
|
|
| (1LL << CodeCompletionContext::CCC_UnionTag)
|
|
| (1LL << CodeCompletionContext::CCC_ClassOrStructTag)
|
|
| (1LL << CodeCompletionContext::CCC_Type)
|
|
| (1LL << CodeCompletionContext::CCC_PotentiallyQualifiedName)
|
|
| (1LL << CodeCompletionContext::CCC_ParenthesizedExpression);
|
|
|
|
if (isa<NamespaceDecl>(Results[I].Declaration) ||
|
|
isa<NamespaceAliasDecl>(Results[I].Declaration))
|
|
NNSContexts |= (1LL << CodeCompletionContext::CCC_Namespace);
|
|
|
|
if (unsigned RemainingContexts
|
|
= NNSContexts & ~CachedResult.ShowInContexts) {
|
|
// If there any contexts where this completion can be a
|
|
// nested-name-specifier but isn't already an option, create a
|
|
// nested-name-specifier completion.
|
|
Results[I].StartsNestedNameSpecifier = true;
|
|
CachedResult.Completion
|
|
= Results[I].CreateCodeCompletionString(*TheSema,
|
|
*CachedCompletionAllocator,
|
|
CCTUInfo,
|
|
IncludeBriefCommentsInCodeCompletion);
|
|
CachedResult.ShowInContexts = RemainingContexts;
|
|
CachedResult.Priority = CCP_NestedNameSpecifier;
|
|
CachedResult.TypeClass = STC_Void;
|
|
CachedResult.Type = 0;
|
|
CachedCompletionResults.push_back(CachedResult);
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
|
|
case Result::RK_Keyword:
|
|
case Result::RK_Pattern:
|
|
// Ignore keywords and patterns; we don't care, since they are so
|
|
// easily regenerated.
|
|
break;
|
|
|
|
case Result::RK_Macro: {
|
|
CachedCodeCompletionResult CachedResult;
|
|
CachedResult.Completion
|
|
= Results[I].CreateCodeCompletionString(*TheSema,
|
|
*CachedCompletionAllocator,
|
|
CCTUInfo,
|
|
IncludeBriefCommentsInCodeCompletion);
|
|
CachedResult.ShowInContexts
|
|
= (1LL << CodeCompletionContext::CCC_TopLevel)
|
|
| (1LL << CodeCompletionContext::CCC_ObjCInterface)
|
|
| (1LL << CodeCompletionContext::CCC_ObjCImplementation)
|
|
| (1LL << CodeCompletionContext::CCC_ObjCIvarList)
|
|
| (1LL << CodeCompletionContext::CCC_ClassStructUnion)
|
|
| (1LL << CodeCompletionContext::CCC_Statement)
|
|
| (1LL << CodeCompletionContext::CCC_Expression)
|
|
| (1LL << CodeCompletionContext::CCC_ObjCMessageReceiver)
|
|
| (1LL << CodeCompletionContext::CCC_MacroNameUse)
|
|
| (1LL << CodeCompletionContext::CCC_PreprocessorExpression)
|
|
| (1LL << CodeCompletionContext::CCC_ParenthesizedExpression)
|
|
| (1LL << CodeCompletionContext::CCC_OtherWithMacros);
|
|
|
|
CachedResult.Priority = Results[I].Priority;
|
|
CachedResult.Kind = Results[I].CursorKind;
|
|
CachedResult.Availability = Results[I].Availability;
|
|
CachedResult.TypeClass = STC_Void;
|
|
CachedResult.Type = 0;
|
|
CachedCompletionResults.push_back(CachedResult);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Save the current top-level hash value.
|
|
CompletionCacheTopLevelHashValue = CurrentTopLevelHashValue;
|
|
}
|
|
|
|
void ASTUnit::ClearCachedCompletionResults() {
|
|
CachedCompletionResults.clear();
|
|
CachedCompletionTypes.clear();
|
|
CachedCompletionAllocator = 0;
|
|
}
|
|
|
|
namespace {
|
|
|
|
/// \brief Gathers information from ASTReader that will be used to initialize
|
|
/// a Preprocessor.
|
|
class ASTInfoCollector : public ASTReaderListener {
|
|
Preprocessor &PP;
|
|
ASTContext &Context;
|
|
LangOptions &LangOpt;
|
|
HeaderSearch &HSI;
|
|
IntrusiveRefCntPtr<TargetOptions> &TargetOpts;
|
|
IntrusiveRefCntPtr<TargetInfo> &Target;
|
|
unsigned &Counter;
|
|
|
|
unsigned NumHeaderInfos;
|
|
|
|
bool InitializedLanguage;
|
|
public:
|
|
ASTInfoCollector(Preprocessor &PP, ASTContext &Context, LangOptions &LangOpt,
|
|
HeaderSearch &HSI,
|
|
IntrusiveRefCntPtr<TargetOptions> &TargetOpts,
|
|
IntrusiveRefCntPtr<TargetInfo> &Target,
|
|
unsigned &Counter)
|
|
: PP(PP), Context(Context), LangOpt(LangOpt), HSI(HSI),
|
|
TargetOpts(TargetOpts), Target(Target),
|
|
Counter(Counter), NumHeaderInfos(0),
|
|
InitializedLanguage(false) {}
|
|
|
|
virtual bool ReadLanguageOptions(const LangOptions &LangOpts,
|
|
bool Complain) {
|
|
if (InitializedLanguage)
|
|
return false;
|
|
|
|
LangOpt = LangOpts;
|
|
InitializedLanguage = true;
|
|
|
|
updated();
|
|
return false;
|
|
}
|
|
|
|
virtual bool ReadTargetOptions(const TargetOptions &TargetOpts,
|
|
bool Complain) {
|
|
// If we've already initialized the target, don't do it again.
|
|
if (Target)
|
|
return false;
|
|
|
|
this->TargetOpts = new TargetOptions(TargetOpts);
|
|
Target = TargetInfo::CreateTargetInfo(PP.getDiagnostics(),
|
|
&*this->TargetOpts);
|
|
|
|
updated();
|
|
return false;
|
|
}
|
|
|
|
virtual void ReadHeaderFileInfo(const HeaderFileInfo &HFI, unsigned ID) {
|
|
HSI.setHeaderFileInfoForUID(HFI, NumHeaderInfos++);
|
|
}
|
|
|
|
virtual void ReadCounter(const serialization::ModuleFile &M, unsigned Value) {
|
|
Counter = Value;
|
|
}
|
|
|
|
private:
|
|
void updated() {
|
|
if (!Target || !InitializedLanguage)
|
|
return;
|
|
|
|
// Inform the target of the language options.
|
|
//
|
|
// FIXME: We shouldn't need to do this, the target should be immutable once
|
|
// created. This complexity should be lifted elsewhere.
|
|
Target->setForcedLangOptions(LangOpt);
|
|
|
|
// Initialize the preprocessor.
|
|
PP.Initialize(*Target);
|
|
|
|
// Initialize the ASTContext
|
|
Context.InitBuiltinTypes(*Target);
|
|
|
|
// We didn't have access to the comment options when the ASTContext was
|
|
// constructed, so register them now.
|
|
Context.getCommentCommandTraits().registerCommentOptions(
|
|
LangOpt.CommentOpts);
|
|
}
|
|
};
|
|
|
|
/// \brief Diagnostic consumer that saves each diagnostic it is given.
|
|
class StoredDiagnosticConsumer : public DiagnosticConsumer {
|
|
SmallVectorImpl<StoredDiagnostic> &StoredDiags;
|
|
SourceManager *SourceMgr;
|
|
|
|
public:
|
|
explicit StoredDiagnosticConsumer(
|
|
SmallVectorImpl<StoredDiagnostic> &StoredDiags)
|
|
: StoredDiags(StoredDiags), SourceMgr(0) { }
|
|
|
|
virtual void BeginSourceFile(const LangOptions &LangOpts,
|
|
const Preprocessor *PP = 0) {
|
|
if (PP)
|
|
SourceMgr = &PP->getSourceManager();
|
|
}
|
|
|
|
virtual void HandleDiagnostic(DiagnosticsEngine::Level Level,
|
|
const Diagnostic &Info);
|
|
};
|
|
|
|
/// \brief RAII object that optionally captures diagnostics, if
|
|
/// there is no diagnostic client to capture them already.
|
|
class CaptureDroppedDiagnostics {
|
|
DiagnosticsEngine &Diags;
|
|
StoredDiagnosticConsumer Client;
|
|
DiagnosticConsumer *PreviousClient;
|
|
|
|
public:
|
|
CaptureDroppedDiagnostics(bool RequestCapture, DiagnosticsEngine &Diags,
|
|
SmallVectorImpl<StoredDiagnostic> &StoredDiags)
|
|
: Diags(Diags), Client(StoredDiags), PreviousClient(0)
|
|
{
|
|
if (RequestCapture || Diags.getClient() == 0) {
|
|
PreviousClient = Diags.takeClient();
|
|
Diags.setClient(&Client);
|
|
}
|
|
}
|
|
|
|
~CaptureDroppedDiagnostics() {
|
|
if (Diags.getClient() == &Client) {
|
|
Diags.takeClient();
|
|
Diags.setClient(PreviousClient);
|
|
}
|
|
}
|
|
};
|
|
|
|
} // anonymous namespace
|
|
|
|
void StoredDiagnosticConsumer::HandleDiagnostic(DiagnosticsEngine::Level Level,
|
|
const Diagnostic &Info) {
|
|
// Default implementation (Warnings/errors count).
|
|
DiagnosticConsumer::HandleDiagnostic(Level, Info);
|
|
|
|
// Only record the diagnostic if it's part of the source manager we know
|
|
// about. This effectively drops diagnostics from modules we're building.
|
|
// FIXME: In the long run, ee don't want to drop source managers from modules.
|
|
if (!Info.hasSourceManager() || &Info.getSourceManager() == SourceMgr)
|
|
StoredDiags.push_back(StoredDiagnostic(Level, Info));
|
|
}
|
|
|
|
ASTDeserializationListener *ASTUnit::getDeserializationListener() {
|
|
if (WriterData)
|
|
return &WriterData->Writer;
|
|
return 0;
|
|
}
|
|
|
|
llvm::MemoryBuffer *ASTUnit::getBufferForFile(StringRef Filename,
|
|
std::string *ErrorStr) {
|
|
assert(FileMgr);
|
|
return FileMgr->getBufferForFile(Filename, ErrorStr);
|
|
}
|
|
|
|
/// \brief Configure the diagnostics object for use with ASTUnit.
|
|
void ASTUnit::ConfigureDiags(IntrusiveRefCntPtr<DiagnosticsEngine> &Diags,
|
|
const char **ArgBegin, const char **ArgEnd,
|
|
ASTUnit &AST, bool CaptureDiagnostics) {
|
|
if (!Diags.getPtr()) {
|
|
// No diagnostics engine was provided, so create our own diagnostics object
|
|
// with the default options.
|
|
DiagnosticConsumer *Client = 0;
|
|
if (CaptureDiagnostics)
|
|
Client = new StoredDiagnosticConsumer(AST.StoredDiagnostics);
|
|
Diags = CompilerInstance::createDiagnostics(new DiagnosticOptions(),
|
|
Client,
|
|
/*ShouldOwnClient=*/true);
|
|
} else if (CaptureDiagnostics) {
|
|
Diags->setClient(new StoredDiagnosticConsumer(AST.StoredDiagnostics));
|
|
}
|
|
}
|
|
|
|
ASTUnit *ASTUnit::LoadFromASTFile(const std::string &Filename,
|
|
IntrusiveRefCntPtr<DiagnosticsEngine> Diags,
|
|
const FileSystemOptions &FileSystemOpts,
|
|
bool OnlyLocalDecls,
|
|
RemappedFile *RemappedFiles,
|
|
unsigned NumRemappedFiles,
|
|
bool CaptureDiagnostics,
|
|
bool AllowPCHWithCompilerErrors,
|
|
bool UserFilesAreVolatile) {
|
|
OwningPtr<ASTUnit> AST(new ASTUnit(true));
|
|
|
|
// Recover resources if we crash before exiting this method.
|
|
llvm::CrashRecoveryContextCleanupRegistrar<ASTUnit>
|
|
ASTUnitCleanup(AST.get());
|
|
llvm::CrashRecoveryContextCleanupRegistrar<DiagnosticsEngine,
|
|
llvm::CrashRecoveryContextReleaseRefCleanup<DiagnosticsEngine> >
|
|
DiagCleanup(Diags.getPtr());
|
|
|
|
ConfigureDiags(Diags, 0, 0, *AST, CaptureDiagnostics);
|
|
|
|
AST->OnlyLocalDecls = OnlyLocalDecls;
|
|
AST->CaptureDiagnostics = CaptureDiagnostics;
|
|
AST->Diagnostics = Diags;
|
|
AST->FileMgr = new FileManager(FileSystemOpts);
|
|
AST->UserFilesAreVolatile = UserFilesAreVolatile;
|
|
AST->SourceMgr = new SourceManager(AST->getDiagnostics(),
|
|
AST->getFileManager(),
|
|
UserFilesAreVolatile);
|
|
AST->HSOpts = new HeaderSearchOptions();
|
|
|
|
AST->HeaderInfo.reset(new HeaderSearch(AST->HSOpts,
|
|
AST->getFileManager(),
|
|
AST->getDiagnostics(),
|
|
AST->ASTFileLangOpts,
|
|
/*Target=*/0));
|
|
|
|
for (unsigned I = 0; I != NumRemappedFiles; ++I) {
|
|
FilenameOrMemBuf fileOrBuf = RemappedFiles[I].second;
|
|
if (const llvm::MemoryBuffer *
|
|
memBuf = fileOrBuf.dyn_cast<const llvm::MemoryBuffer *>()) {
|
|
// Create the file entry for the file that we're mapping from.
|
|
const FileEntry *FromFile
|
|
= AST->getFileManager().getVirtualFile(RemappedFiles[I].first,
|
|
memBuf->getBufferSize(),
|
|
0);
|
|
if (!FromFile) {
|
|
AST->getDiagnostics().Report(diag::err_fe_remap_missing_from_file)
|
|
<< RemappedFiles[I].first;
|
|
delete memBuf;
|
|
continue;
|
|
}
|
|
|
|
// Override the contents of the "from" file with the contents of
|
|
// the "to" file.
|
|
AST->getSourceManager().overrideFileContents(FromFile, memBuf);
|
|
|
|
} else {
|
|
const char *fname = fileOrBuf.get<const char *>();
|
|
const FileEntry *ToFile = AST->FileMgr->getFile(fname);
|
|
if (!ToFile) {
|
|
AST->getDiagnostics().Report(diag::err_fe_remap_missing_to_file)
|
|
<< RemappedFiles[I].first << fname;
|
|
continue;
|
|
}
|
|
|
|
// Create the file entry for the file that we're mapping from.
|
|
const FileEntry *FromFile
|
|
= AST->getFileManager().getVirtualFile(RemappedFiles[I].first,
|
|
ToFile->getSize(),
|
|
0);
|
|
if (!FromFile) {
|
|
AST->getDiagnostics().Report(diag::err_fe_remap_missing_from_file)
|
|
<< RemappedFiles[I].first;
|
|
delete memBuf;
|
|
continue;
|
|
}
|
|
|
|
// Override the contents of the "from" file with the contents of
|
|
// the "to" file.
|
|
AST->getSourceManager().overrideFileContents(FromFile, ToFile);
|
|
}
|
|
}
|
|
|
|
// Gather Info for preprocessor construction later on.
|
|
|
|
HeaderSearch &HeaderInfo = *AST->HeaderInfo.get();
|
|
unsigned Counter;
|
|
|
|
OwningPtr<ASTReader> Reader;
|
|
|
|
AST->PP = new Preprocessor(new PreprocessorOptions(),
|
|
AST->getDiagnostics(), AST->ASTFileLangOpts,
|
|
/*Target=*/0, AST->getSourceManager(), HeaderInfo,
|
|
*AST,
|
|
/*IILookup=*/0,
|
|
/*OwnsHeaderSearch=*/false,
|
|
/*DelayInitialization=*/true);
|
|
Preprocessor &PP = *AST->PP;
|
|
|
|
AST->Ctx = new ASTContext(AST->ASTFileLangOpts,
|
|
AST->getSourceManager(),
|
|
/*Target=*/0,
|
|
PP.getIdentifierTable(),
|
|
PP.getSelectorTable(),
|
|
PP.getBuiltinInfo(),
|
|
/* size_reserve = */0,
|
|
/*DelayInitialization=*/true);
|
|
ASTContext &Context = *AST->Ctx;
|
|
|
|
bool disableValid = false;
|
|
if (::getenv("LIBCLANG_DISABLE_PCH_VALIDATION"))
|
|
disableValid = true;
|
|
Reader.reset(new ASTReader(PP, Context,
|
|
/*isysroot=*/"",
|
|
/*DisableValidation=*/disableValid,
|
|
AllowPCHWithCompilerErrors));
|
|
|
|
// Recover resources if we crash before exiting this method.
|
|
llvm::CrashRecoveryContextCleanupRegistrar<ASTReader>
|
|
ReaderCleanup(Reader.get());
|
|
|
|
Reader->setListener(new ASTInfoCollector(*AST->PP, Context,
|
|
AST->ASTFileLangOpts, HeaderInfo,
|
|
AST->TargetOpts, AST->Target,
|
|
Counter));
|
|
|
|
switch (Reader->ReadAST(Filename, serialization::MK_MainFile,
|
|
SourceLocation(), ASTReader::ARR_None)) {
|
|
case ASTReader::Success:
|
|
break;
|
|
|
|
case ASTReader::Failure:
|
|
case ASTReader::Missing:
|
|
case ASTReader::OutOfDate:
|
|
case ASTReader::VersionMismatch:
|
|
case ASTReader::ConfigurationMismatch:
|
|
case ASTReader::HadErrors:
|
|
AST->getDiagnostics().Report(diag::err_fe_unable_to_load_pch);
|
|
return NULL;
|
|
}
|
|
|
|
AST->OriginalSourceFile = Reader->getOriginalSourceFile();
|
|
|
|
PP.setCounterValue(Counter);
|
|
|
|
// Attach the AST reader to the AST context as an external AST
|
|
// source, so that declarations will be deserialized from the
|
|
// AST file as needed.
|
|
ASTReader *ReaderPtr = Reader.get();
|
|
OwningPtr<ExternalASTSource> Source(Reader.take());
|
|
|
|
// Unregister the cleanup for ASTReader. It will get cleaned up
|
|
// by the ASTUnit cleanup.
|
|
ReaderCleanup.unregister();
|
|
|
|
Context.setExternalSource(Source);
|
|
|
|
// Create an AST consumer, even though it isn't used.
|
|
AST->Consumer.reset(new ASTConsumer);
|
|
|
|
// Create a semantic analysis object and tell the AST reader about it.
|
|
AST->TheSema.reset(new Sema(PP, Context, *AST->Consumer));
|
|
AST->TheSema->Initialize();
|
|
ReaderPtr->InitializeSema(*AST->TheSema);
|
|
AST->Reader = ReaderPtr;
|
|
|
|
// Tell the diagnostic client that we have started a source file.
|
|
AST->getDiagnostics().getClient()->BeginSourceFile(Context.getLangOpts(),&PP);
|
|
|
|
return AST.take();
|
|
}
|
|
|
|
namespace {
|
|
|
|
/// \brief Preprocessor callback class that updates a hash value with the names
|
|
/// of all macros that have been defined by the translation unit.
|
|
class MacroDefinitionTrackerPPCallbacks : public PPCallbacks {
|
|
unsigned &Hash;
|
|
|
|
public:
|
|
explicit MacroDefinitionTrackerPPCallbacks(unsigned &Hash) : Hash(Hash) { }
|
|
|
|
virtual void MacroDefined(const Token &MacroNameTok,
|
|
const MacroDirective *MD) {
|
|
Hash = llvm::HashString(MacroNameTok.getIdentifierInfo()->getName(), Hash);
|
|
}
|
|
};
|
|
|
|
/// \brief Add the given declaration to the hash of all top-level entities.
|
|
void AddTopLevelDeclarationToHash(Decl *D, unsigned &Hash) {
|
|
if (!D)
|
|
return;
|
|
|
|
DeclContext *DC = D->getDeclContext();
|
|
if (!DC)
|
|
return;
|
|
|
|
if (!(DC->isTranslationUnit() || DC->getLookupParent()->isTranslationUnit()))
|
|
return;
|
|
|
|
if (NamedDecl *ND = dyn_cast<NamedDecl>(D)) {
|
|
if (ND->getIdentifier())
|
|
Hash = llvm::HashString(ND->getIdentifier()->getName(), Hash);
|
|
else if (DeclarationName Name = ND->getDeclName()) {
|
|
std::string NameStr = Name.getAsString();
|
|
Hash = llvm::HashString(NameStr, Hash);
|
|
}
|
|
return;
|
|
}
|
|
}
|
|
|
|
class TopLevelDeclTrackerConsumer : public ASTConsumer {
|
|
ASTUnit &Unit;
|
|
unsigned &Hash;
|
|
|
|
public:
|
|
TopLevelDeclTrackerConsumer(ASTUnit &_Unit, unsigned &Hash)
|
|
: Unit(_Unit), Hash(Hash) {
|
|
Hash = 0;
|
|
}
|
|
|
|
void handleTopLevelDecl(Decl *D) {
|
|
if (!D)
|
|
return;
|
|
|
|
// FIXME: Currently ObjC method declarations are incorrectly being
|
|
// reported as top-level declarations, even though their DeclContext
|
|
// is the containing ObjC @interface/@implementation. This is a
|
|
// fundamental problem in the parser right now.
|
|
if (isa<ObjCMethodDecl>(D))
|
|
return;
|
|
|
|
AddTopLevelDeclarationToHash(D, Hash);
|
|
Unit.addTopLevelDecl(D);
|
|
|
|
handleFileLevelDecl(D);
|
|
}
|
|
|
|
void handleFileLevelDecl(Decl *D) {
|
|
Unit.addFileLevelDecl(D);
|
|
if (NamespaceDecl *NSD = dyn_cast<NamespaceDecl>(D)) {
|
|
for (NamespaceDecl::decl_iterator
|
|
I = NSD->decls_begin(), E = NSD->decls_end(); I != E; ++I)
|
|
handleFileLevelDecl(*I);
|
|
}
|
|
}
|
|
|
|
bool HandleTopLevelDecl(DeclGroupRef D) {
|
|
for (DeclGroupRef::iterator it = D.begin(), ie = D.end(); it != ie; ++it)
|
|
handleTopLevelDecl(*it);
|
|
return true;
|
|
}
|
|
|
|
// We're not interested in "interesting" decls.
|
|
void HandleInterestingDecl(DeclGroupRef) {}
|
|
|
|
void HandleTopLevelDeclInObjCContainer(DeclGroupRef D) {
|
|
for (DeclGroupRef::iterator it = D.begin(), ie = D.end(); it != ie; ++it)
|
|
handleTopLevelDecl(*it);
|
|
}
|
|
|
|
virtual ASTDeserializationListener *GetASTDeserializationListener() {
|
|
return Unit.getDeserializationListener();
|
|
}
|
|
};
|
|
|
|
class TopLevelDeclTrackerAction : public ASTFrontendAction {
|
|
public:
|
|
ASTUnit &Unit;
|
|
|
|
virtual ASTConsumer *CreateASTConsumer(CompilerInstance &CI,
|
|
StringRef InFile) {
|
|
CI.getPreprocessor().addPPCallbacks(
|
|
new MacroDefinitionTrackerPPCallbacks(Unit.getCurrentTopLevelHashValue()));
|
|
return new TopLevelDeclTrackerConsumer(Unit,
|
|
Unit.getCurrentTopLevelHashValue());
|
|
}
|
|
|
|
public:
|
|
TopLevelDeclTrackerAction(ASTUnit &_Unit) : Unit(_Unit) {}
|
|
|
|
virtual bool hasCodeCompletionSupport() const { return false; }
|
|
virtual TranslationUnitKind getTranslationUnitKind() {
|
|
return Unit.getTranslationUnitKind();
|
|
}
|
|
};
|
|
|
|
class PrecompilePreambleConsumer : public PCHGenerator {
|
|
ASTUnit &Unit;
|
|
unsigned &Hash;
|
|
std::vector<Decl *> TopLevelDecls;
|
|
|
|
public:
|
|
PrecompilePreambleConsumer(ASTUnit &Unit, const Preprocessor &PP,
|
|
StringRef isysroot, raw_ostream *Out)
|
|
: PCHGenerator(PP, "", 0, isysroot, Out), Unit(Unit),
|
|
Hash(Unit.getCurrentTopLevelHashValue()) {
|
|
Hash = 0;
|
|
}
|
|
|
|
virtual bool HandleTopLevelDecl(DeclGroupRef D) {
|
|
for (DeclGroupRef::iterator it = D.begin(), ie = D.end(); it != ie; ++it) {
|
|
Decl *D = *it;
|
|
// FIXME: Currently ObjC method declarations are incorrectly being
|
|
// reported as top-level declarations, even though their DeclContext
|
|
// is the containing ObjC @interface/@implementation. This is a
|
|
// fundamental problem in the parser right now.
|
|
if (isa<ObjCMethodDecl>(D))
|
|
continue;
|
|
AddTopLevelDeclarationToHash(D, Hash);
|
|
TopLevelDecls.push_back(D);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
virtual void HandleTranslationUnit(ASTContext &Ctx) {
|
|
PCHGenerator::HandleTranslationUnit(Ctx);
|
|
if (!Unit.getDiagnostics().hasErrorOccurred()) {
|
|
// Translate the top-level declarations we captured during
|
|
// parsing into declaration IDs in the precompiled
|
|
// preamble. This will allow us to deserialize those top-level
|
|
// declarations when requested.
|
|
for (unsigned I = 0, N = TopLevelDecls.size(); I != N; ++I)
|
|
Unit.addTopLevelDeclFromPreamble(
|
|
getWriter().getDeclID(TopLevelDecls[I]));
|
|
}
|
|
}
|
|
};
|
|
|
|
class PrecompilePreambleAction : public ASTFrontendAction {
|
|
ASTUnit &Unit;
|
|
|
|
public:
|
|
explicit PrecompilePreambleAction(ASTUnit &Unit) : Unit(Unit) {}
|
|
|
|
virtual ASTConsumer *CreateASTConsumer(CompilerInstance &CI,
|
|
StringRef InFile) {
|
|
std::string Sysroot;
|
|
std::string OutputFile;
|
|
raw_ostream *OS = 0;
|
|
if (GeneratePCHAction::ComputeASTConsumerArguments(CI, InFile, Sysroot,
|
|
OutputFile,
|
|
OS))
|
|
return 0;
|
|
|
|
if (!CI.getFrontendOpts().RelocatablePCH)
|
|
Sysroot.clear();
|
|
|
|
CI.getPreprocessor().addPPCallbacks(
|
|
new MacroDefinitionTrackerPPCallbacks(Unit.getCurrentTopLevelHashValue()));
|
|
return new PrecompilePreambleConsumer(Unit, CI.getPreprocessor(), Sysroot,
|
|
OS);
|
|
}
|
|
|
|
virtual bool hasCodeCompletionSupport() const { return false; }
|
|
virtual bool hasASTFileSupport() const { return false; }
|
|
virtual TranslationUnitKind getTranslationUnitKind() { return TU_Prefix; }
|
|
};
|
|
|
|
}
|
|
|
|
static bool isNonDriverDiag(const StoredDiagnostic &StoredDiag) {
|
|
return StoredDiag.getLocation().isValid();
|
|
}
|
|
|
|
static void
|
|
checkAndRemoveNonDriverDiags(SmallVectorImpl<StoredDiagnostic> &StoredDiags) {
|
|
// Get rid of stored diagnostics except the ones from the driver which do not
|
|
// have a source location.
|
|
StoredDiags.erase(
|
|
std::remove_if(StoredDiags.begin(), StoredDiags.end(), isNonDriverDiag),
|
|
StoredDiags.end());
|
|
}
|
|
|
|
static void checkAndSanitizeDiags(SmallVectorImpl<StoredDiagnostic> &
|
|
StoredDiagnostics,
|
|
SourceManager &SM) {
|
|
// The stored diagnostic has the old source manager in it; update
|
|
// the locations to refer into the new source manager. Since we've
|
|
// been careful to make sure that the source manager's state
|
|
// before and after are identical, so that we can reuse the source
|
|
// location itself.
|
|
for (unsigned I = 0, N = StoredDiagnostics.size(); I < N; ++I) {
|
|
if (StoredDiagnostics[I].getLocation().isValid()) {
|
|
FullSourceLoc Loc(StoredDiagnostics[I].getLocation(), SM);
|
|
StoredDiagnostics[I].setLocation(Loc);
|
|
}
|
|
}
|
|
}
|
|
|
|
/// Parse the source file into a translation unit using the given compiler
|
|
/// invocation, replacing the current translation unit.
|
|
///
|
|
/// \returns True if a failure occurred that causes the ASTUnit not to
|
|
/// contain any translation-unit information, false otherwise.
|
|
bool ASTUnit::Parse(llvm::MemoryBuffer *OverrideMainBuffer) {
|
|
delete SavedMainFileBuffer;
|
|
SavedMainFileBuffer = 0;
|
|
|
|
if (!Invocation) {
|
|
delete OverrideMainBuffer;
|
|
return true;
|
|
}
|
|
|
|
// Create the compiler instance to use for building the AST.
|
|
OwningPtr<CompilerInstance> Clang(new CompilerInstance());
|
|
|
|
// Recover resources if we crash before exiting this method.
|
|
llvm::CrashRecoveryContextCleanupRegistrar<CompilerInstance>
|
|
CICleanup(Clang.get());
|
|
|
|
IntrusiveRefCntPtr<CompilerInvocation>
|
|
CCInvocation(new CompilerInvocation(*Invocation));
|
|
|
|
Clang->setInvocation(CCInvocation.getPtr());
|
|
OriginalSourceFile = Clang->getFrontendOpts().Inputs[0].getFile();
|
|
|
|
// Set up diagnostics, capturing any diagnostics that would
|
|
// otherwise be dropped.
|
|
Clang->setDiagnostics(&getDiagnostics());
|
|
|
|
// Create the target instance.
|
|
Clang->setTarget(TargetInfo::CreateTargetInfo(Clang->getDiagnostics(),
|
|
&Clang->getTargetOpts()));
|
|
if (!Clang->hasTarget()) {
|
|
delete OverrideMainBuffer;
|
|
return true;
|
|
}
|
|
|
|
// Inform the target of the language options.
|
|
//
|
|
// FIXME: We shouldn't need to do this, the target should be immutable once
|
|
// created. This complexity should be lifted elsewhere.
|
|
Clang->getTarget().setForcedLangOptions(Clang->getLangOpts());
|
|
|
|
assert(Clang->getFrontendOpts().Inputs.size() == 1 &&
|
|
"Invocation must have exactly one source file!");
|
|
assert(Clang->getFrontendOpts().Inputs[0].getKind() != IK_AST &&
|
|
"FIXME: AST inputs not yet supported here!");
|
|
assert(Clang->getFrontendOpts().Inputs[0].getKind() != IK_LLVM_IR &&
|
|
"IR inputs not support here!");
|
|
|
|
// Configure the various subsystems.
|
|
// FIXME: Should we retain the previous file manager?
|
|
LangOpts = &Clang->getLangOpts();
|
|
FileSystemOpts = Clang->getFileSystemOpts();
|
|
FileMgr = new FileManager(FileSystemOpts);
|
|
SourceMgr = new SourceManager(getDiagnostics(), *FileMgr,
|
|
UserFilesAreVolatile);
|
|
TheSema.reset();
|
|
Ctx = 0;
|
|
PP = 0;
|
|
Reader = 0;
|
|
|
|
// Clear out old caches and data.
|
|
TopLevelDecls.clear();
|
|
clearFileLevelDecls();
|
|
CleanTemporaryFiles();
|
|
|
|
if (!OverrideMainBuffer) {
|
|
checkAndRemoveNonDriverDiags(StoredDiagnostics);
|
|
TopLevelDeclsInPreamble.clear();
|
|
}
|
|
|
|
// Create a file manager object to provide access to and cache the filesystem.
|
|
Clang->setFileManager(&getFileManager());
|
|
|
|
// Create the source manager.
|
|
Clang->setSourceManager(&getSourceManager());
|
|
|
|
// If the main file has been overridden due to the use of a preamble,
|
|
// make that override happen and introduce the preamble.
|
|
PreprocessorOptions &PreprocessorOpts = Clang->getPreprocessorOpts();
|
|
if (OverrideMainBuffer) {
|
|
PreprocessorOpts.addRemappedFile(OriginalSourceFile, OverrideMainBuffer);
|
|
PreprocessorOpts.PrecompiledPreambleBytes.first = Preamble.size();
|
|
PreprocessorOpts.PrecompiledPreambleBytes.second
|
|
= PreambleEndsAtStartOfLine;
|
|
PreprocessorOpts.ImplicitPCHInclude = getPreambleFile(this);
|
|
PreprocessorOpts.DisablePCHValidation = true;
|
|
|
|
// The stored diagnostic has the old source manager in it; update
|
|
// the locations to refer into the new source manager. Since we've
|
|
// been careful to make sure that the source manager's state
|
|
// before and after are identical, so that we can reuse the source
|
|
// location itself.
|
|
checkAndSanitizeDiags(StoredDiagnostics, getSourceManager());
|
|
|
|
// Keep track of the override buffer;
|
|
SavedMainFileBuffer = OverrideMainBuffer;
|
|
}
|
|
|
|
OwningPtr<TopLevelDeclTrackerAction> Act(
|
|
new TopLevelDeclTrackerAction(*this));
|
|
|
|
// Recover resources if we crash before exiting this method.
|
|
llvm::CrashRecoveryContextCleanupRegistrar<TopLevelDeclTrackerAction>
|
|
ActCleanup(Act.get());
|
|
|
|
if (!Act->BeginSourceFile(*Clang.get(), Clang->getFrontendOpts().Inputs[0]))
|
|
goto error;
|
|
|
|
if (OverrideMainBuffer) {
|
|
std::string ModName = getPreambleFile(this);
|
|
TranslateStoredDiagnostics(Clang->getModuleManager(), ModName,
|
|
getSourceManager(), PreambleDiagnostics,
|
|
StoredDiagnostics);
|
|
}
|
|
|
|
if (!Act->Execute())
|
|
goto error;
|
|
|
|
transferASTDataFromCompilerInstance(*Clang);
|
|
|
|
Act->EndSourceFile();
|
|
|
|
FailedParseDiagnostics.clear();
|
|
|
|
return false;
|
|
|
|
error:
|
|
// Remove the overridden buffer we used for the preamble.
|
|
if (OverrideMainBuffer) {
|
|
delete OverrideMainBuffer;
|
|
SavedMainFileBuffer = 0;
|
|
}
|
|
|
|
// Keep the ownership of the data in the ASTUnit because the client may
|
|
// want to see the diagnostics.
|
|
transferASTDataFromCompilerInstance(*Clang);
|
|
FailedParseDiagnostics.swap(StoredDiagnostics);
|
|
StoredDiagnostics.clear();
|
|
NumStoredDiagnosticsFromDriver = 0;
|
|
return true;
|
|
}
|
|
|
|
/// \brief Simple function to retrieve a path for a preamble precompiled header.
|
|
static std::string GetPreamblePCHPath() {
|
|
// FIXME: This is lame; sys::Path should provide this function (in particular,
|
|
// it should know how to find the temporary files dir).
|
|
// FIXME: This is really lame. I copied this code from the Driver!
|
|
// FIXME: This is a hack so that we can override the preamble file during
|
|
// crash-recovery testing, which is the only case where the preamble files
|
|
// are not necessarily cleaned up.
|
|
const char *TmpFile = ::getenv("CINDEXTEST_PREAMBLE_FILE");
|
|
if (TmpFile)
|
|
return TmpFile;
|
|
|
|
std::string Error;
|
|
const char *TmpDir = ::getenv("TMPDIR");
|
|
if (!TmpDir)
|
|
TmpDir = ::getenv("TEMP");
|
|
if (!TmpDir)
|
|
TmpDir = ::getenv("TMP");
|
|
#ifdef LLVM_ON_WIN32
|
|
if (!TmpDir)
|
|
TmpDir = ::getenv("USERPROFILE");
|
|
#endif
|
|
if (!TmpDir)
|
|
TmpDir = "/tmp";
|
|
llvm::sys::Path P(TmpDir);
|
|
P.createDirectoryOnDisk(true);
|
|
P.appendComponent("preamble");
|
|
P.appendSuffix("pch");
|
|
if (P.makeUnique(/*reuse_current=*/false, /*ErrMsg*/0))
|
|
return std::string();
|
|
|
|
return P.str();
|
|
}
|
|
|
|
/// \brief Compute the preamble for the main file, providing the source buffer
|
|
/// that corresponds to the main file along with a pair (bytes, start-of-line)
|
|
/// that describes the preamble.
|
|
std::pair<llvm::MemoryBuffer *, std::pair<unsigned, bool> >
|
|
ASTUnit::ComputePreamble(CompilerInvocation &Invocation,
|
|
unsigned MaxLines, bool &CreatedBuffer) {
|
|
FrontendOptions &FrontendOpts = Invocation.getFrontendOpts();
|
|
PreprocessorOptions &PreprocessorOpts = Invocation.getPreprocessorOpts();
|
|
CreatedBuffer = false;
|
|
|
|
// Try to determine if the main file has been remapped, either from the
|
|
// command line (to another file) or directly through the compiler invocation
|
|
// (to a memory buffer).
|
|
llvm::MemoryBuffer *Buffer = 0;
|
|
llvm::sys::PathWithStatus MainFilePath(FrontendOpts.Inputs[0].getFile());
|
|
if (const llvm::sys::FileStatus *MainFileStatus = MainFilePath.getFileStatus()) {
|
|
// Check whether there is a file-file remapping of the main file
|
|
for (PreprocessorOptions::remapped_file_iterator
|
|
M = PreprocessorOpts.remapped_file_begin(),
|
|
E = PreprocessorOpts.remapped_file_end();
|
|
M != E;
|
|
++M) {
|
|
llvm::sys::PathWithStatus MPath(M->first);
|
|
if (const llvm::sys::FileStatus *MStatus = MPath.getFileStatus()) {
|
|
if (MainFileStatus->uniqueID == MStatus->uniqueID) {
|
|
// We found a remapping. Try to load the resulting, remapped source.
|
|
if (CreatedBuffer) {
|
|
delete Buffer;
|
|
CreatedBuffer = false;
|
|
}
|
|
|
|
Buffer = getBufferForFile(M->second);
|
|
if (!Buffer)
|
|
return std::make_pair((llvm::MemoryBuffer*)0,
|
|
std::make_pair(0, true));
|
|
CreatedBuffer = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Check whether there is a file-buffer remapping. It supercedes the
|
|
// file-file remapping.
|
|
for (PreprocessorOptions::remapped_file_buffer_iterator
|
|
M = PreprocessorOpts.remapped_file_buffer_begin(),
|
|
E = PreprocessorOpts.remapped_file_buffer_end();
|
|
M != E;
|
|
++M) {
|
|
llvm::sys::PathWithStatus MPath(M->first);
|
|
if (const llvm::sys::FileStatus *MStatus = MPath.getFileStatus()) {
|
|
if (MainFileStatus->uniqueID == MStatus->uniqueID) {
|
|
// We found a remapping.
|
|
if (CreatedBuffer) {
|
|
delete Buffer;
|
|
CreatedBuffer = false;
|
|
}
|
|
|
|
Buffer = const_cast<llvm::MemoryBuffer *>(M->second);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// If the main source file was not remapped, load it now.
|
|
if (!Buffer) {
|
|
Buffer = getBufferForFile(FrontendOpts.Inputs[0].getFile());
|
|
if (!Buffer)
|
|
return std::make_pair((llvm::MemoryBuffer*)0, std::make_pair(0, true));
|
|
|
|
CreatedBuffer = true;
|
|
}
|
|
|
|
return std::make_pair(Buffer, Lexer::ComputePreamble(Buffer,
|
|
*Invocation.getLangOpts(),
|
|
MaxLines));
|
|
}
|
|
|
|
static llvm::MemoryBuffer *CreatePaddedMainFileBuffer(llvm::MemoryBuffer *Old,
|
|
unsigned NewSize,
|
|
StringRef NewName) {
|
|
llvm::MemoryBuffer *Result
|
|
= llvm::MemoryBuffer::getNewUninitMemBuffer(NewSize, NewName);
|
|
memcpy(const_cast<char*>(Result->getBufferStart()),
|
|
Old->getBufferStart(), Old->getBufferSize());
|
|
memset(const_cast<char*>(Result->getBufferStart()) + Old->getBufferSize(),
|
|
' ', NewSize - Old->getBufferSize() - 1);
|
|
const_cast<char*>(Result->getBufferEnd())[-1] = '\n';
|
|
|
|
return Result;
|
|
}
|
|
|
|
/// \brief Attempt to build or re-use a precompiled preamble when (re-)parsing
|
|
/// the source file.
|
|
///
|
|
/// This routine will compute the preamble of the main source file. If a
|
|
/// non-trivial preamble is found, it will precompile that preamble into a
|
|
/// precompiled header so that the precompiled preamble can be used to reduce
|
|
/// reparsing time. If a precompiled preamble has already been constructed,
|
|
/// this routine will determine if it is still valid and, if so, avoid
|
|
/// rebuilding the precompiled preamble.
|
|
///
|
|
/// \param AllowRebuild When true (the default), this routine is
|
|
/// allowed to rebuild the precompiled preamble if it is found to be
|
|
/// out-of-date.
|
|
///
|
|
/// \param MaxLines When non-zero, the maximum number of lines that
|
|
/// can occur within the preamble.
|
|
///
|
|
/// \returns If the precompiled preamble can be used, returns a newly-allocated
|
|
/// buffer that should be used in place of the main file when doing so.
|
|
/// Otherwise, returns a NULL pointer.
|
|
llvm::MemoryBuffer *ASTUnit::getMainBufferWithPrecompiledPreamble(
|
|
const CompilerInvocation &PreambleInvocationIn,
|
|
bool AllowRebuild,
|
|
unsigned MaxLines) {
|
|
|
|
IntrusiveRefCntPtr<CompilerInvocation>
|
|
PreambleInvocation(new CompilerInvocation(PreambleInvocationIn));
|
|
FrontendOptions &FrontendOpts = PreambleInvocation->getFrontendOpts();
|
|
PreprocessorOptions &PreprocessorOpts
|
|
= PreambleInvocation->getPreprocessorOpts();
|
|
|
|
bool CreatedPreambleBuffer = false;
|
|
std::pair<llvm::MemoryBuffer *, std::pair<unsigned, bool> > NewPreamble
|
|
= ComputePreamble(*PreambleInvocation, MaxLines, CreatedPreambleBuffer);
|
|
|
|
// If ComputePreamble() Take ownership of the preamble buffer.
|
|
OwningPtr<llvm::MemoryBuffer> OwnedPreambleBuffer;
|
|
if (CreatedPreambleBuffer)
|
|
OwnedPreambleBuffer.reset(NewPreamble.first);
|
|
|
|
if (!NewPreamble.second.first) {
|
|
// We couldn't find a preamble in the main source. Clear out the current
|
|
// preamble, if we have one. It's obviously no good any more.
|
|
Preamble.clear();
|
|
erasePreambleFile(this);
|
|
|
|
// The next time we actually see a preamble, precompile it.
|
|
PreambleRebuildCounter = 1;
|
|
return 0;
|
|
}
|
|
|
|
if (!Preamble.empty()) {
|
|
// We've previously computed a preamble. Check whether we have the same
|
|
// preamble now that we did before, and that there's enough space in
|
|
// the main-file buffer within the precompiled preamble to fit the
|
|
// new main file.
|
|
if (Preamble.size() == NewPreamble.second.first &&
|
|
PreambleEndsAtStartOfLine == NewPreamble.second.second &&
|
|
NewPreamble.first->getBufferSize() < PreambleReservedSize-2 &&
|
|
memcmp(Preamble.getBufferStart(), NewPreamble.first->getBufferStart(),
|
|
NewPreamble.second.first) == 0) {
|
|
// The preamble has not changed. We may be able to re-use the precompiled
|
|
// preamble.
|
|
|
|
// Check that none of the files used by the preamble have changed.
|
|
bool AnyFileChanged = false;
|
|
|
|
// First, make a record of those files that have been overridden via
|
|
// remapping or unsaved_files.
|
|
llvm::StringMap<std::pair<off_t, time_t> > OverriddenFiles;
|
|
for (PreprocessorOptions::remapped_file_iterator
|
|
R = PreprocessorOpts.remapped_file_begin(),
|
|
REnd = PreprocessorOpts.remapped_file_end();
|
|
!AnyFileChanged && R != REnd;
|
|
++R) {
|
|
struct stat StatBuf;
|
|
if (FileMgr->getNoncachedStatValue(R->second, StatBuf)) {
|
|
// If we can't stat the file we're remapping to, assume that something
|
|
// horrible happened.
|
|
AnyFileChanged = true;
|
|
break;
|
|
}
|
|
|
|
OverriddenFiles[R->first] = std::make_pair(StatBuf.st_size,
|
|
StatBuf.st_mtime);
|
|
}
|
|
for (PreprocessorOptions::remapped_file_buffer_iterator
|
|
R = PreprocessorOpts.remapped_file_buffer_begin(),
|
|
REnd = PreprocessorOpts.remapped_file_buffer_end();
|
|
!AnyFileChanged && R != REnd;
|
|
++R) {
|
|
// FIXME: Should we actually compare the contents of file->buffer
|
|
// remappings?
|
|
OverriddenFiles[R->first] = std::make_pair(R->second->getBufferSize(),
|
|
0);
|
|
}
|
|
|
|
// Check whether anything has changed.
|
|
for (llvm::StringMap<std::pair<off_t, time_t> >::iterator
|
|
F = FilesInPreamble.begin(), FEnd = FilesInPreamble.end();
|
|
!AnyFileChanged && F != FEnd;
|
|
++F) {
|
|
llvm::StringMap<std::pair<off_t, time_t> >::iterator Overridden
|
|
= OverriddenFiles.find(F->first());
|
|
if (Overridden != OverriddenFiles.end()) {
|
|
// This file was remapped; check whether the newly-mapped file
|
|
// matches up with the previous mapping.
|
|
if (Overridden->second != F->second)
|
|
AnyFileChanged = true;
|
|
continue;
|
|
}
|
|
|
|
// The file was not remapped; check whether it has changed on disk.
|
|
struct stat StatBuf;
|
|
if (FileMgr->getNoncachedStatValue(F->first(), StatBuf)) {
|
|
// If we can't stat the file, assume that something horrible happened.
|
|
AnyFileChanged = true;
|
|
} else if (StatBuf.st_size != F->second.first ||
|
|
StatBuf.st_mtime != F->second.second)
|
|
AnyFileChanged = true;
|
|
}
|
|
|
|
if (!AnyFileChanged) {
|
|
// Okay! We can re-use the precompiled preamble.
|
|
|
|
// Set the state of the diagnostic object to mimic its state
|
|
// after parsing the preamble.
|
|
getDiagnostics().Reset();
|
|
ProcessWarningOptions(getDiagnostics(),
|
|
PreambleInvocation->getDiagnosticOpts());
|
|
getDiagnostics().setNumWarnings(NumWarningsInPreamble);
|
|
|
|
// Create a version of the main file buffer that is padded to
|
|
// buffer size we reserved when creating the preamble.
|
|
return CreatePaddedMainFileBuffer(NewPreamble.first,
|
|
PreambleReservedSize,
|
|
FrontendOpts.Inputs[0].getFile());
|
|
}
|
|
}
|
|
|
|
// If we aren't allowed to rebuild the precompiled preamble, just
|
|
// return now.
|
|
if (!AllowRebuild)
|
|
return 0;
|
|
|
|
// We can't reuse the previously-computed preamble. Build a new one.
|
|
Preamble.clear();
|
|
PreambleDiagnostics.clear();
|
|
erasePreambleFile(this);
|
|
PreambleRebuildCounter = 1;
|
|
} else if (!AllowRebuild) {
|
|
// We aren't allowed to rebuild the precompiled preamble; just
|
|
// return now.
|
|
return 0;
|
|
}
|
|
|
|
// If the preamble rebuild counter > 1, it's because we previously
|
|
// failed to build a preamble and we're not yet ready to try
|
|
// again. Decrement the counter and return a failure.
|
|
if (PreambleRebuildCounter > 1) {
|
|
--PreambleRebuildCounter;
|
|
return 0;
|
|
}
|
|
|
|
// Create a temporary file for the precompiled preamble. In rare
|
|
// circumstances, this can fail.
|
|
std::string PreamblePCHPath = GetPreamblePCHPath();
|
|
if (PreamblePCHPath.empty()) {
|
|
// Try again next time.
|
|
PreambleRebuildCounter = 1;
|
|
return 0;
|
|
}
|
|
|
|
// We did not previously compute a preamble, or it can't be reused anyway.
|
|
SimpleTimer PreambleTimer(WantTiming);
|
|
PreambleTimer.setOutput("Precompiling preamble");
|
|
|
|
// Create a new buffer that stores the preamble. The buffer also contains
|
|
// extra space for the original contents of the file (which will be present
|
|
// when we actually parse the file) along with more room in case the file
|
|
// grows.
|
|
PreambleReservedSize = NewPreamble.first->getBufferSize();
|
|
if (PreambleReservedSize < 4096)
|
|
PreambleReservedSize = 8191;
|
|
else
|
|
PreambleReservedSize *= 2;
|
|
|
|
// Save the preamble text for later; we'll need to compare against it for
|
|
// subsequent reparses.
|
|
StringRef MainFilename = PreambleInvocation->getFrontendOpts().Inputs[0].getFile();
|
|
Preamble.assign(FileMgr->getFile(MainFilename),
|
|
NewPreamble.first->getBufferStart(),
|
|
NewPreamble.first->getBufferStart()
|
|
+ NewPreamble.second.first);
|
|
PreambleEndsAtStartOfLine = NewPreamble.second.second;
|
|
|
|
delete PreambleBuffer;
|
|
PreambleBuffer
|
|
= llvm::MemoryBuffer::getNewUninitMemBuffer(PreambleReservedSize,
|
|
FrontendOpts.Inputs[0].getFile());
|
|
memcpy(const_cast<char*>(PreambleBuffer->getBufferStart()),
|
|
NewPreamble.first->getBufferStart(), Preamble.size());
|
|
memset(const_cast<char*>(PreambleBuffer->getBufferStart()) + Preamble.size(),
|
|
' ', PreambleReservedSize - Preamble.size() - 1);
|
|
const_cast<char*>(PreambleBuffer->getBufferEnd())[-1] = '\n';
|
|
|
|
// Remap the main source file to the preamble buffer.
|
|
llvm::sys::PathWithStatus MainFilePath(FrontendOpts.Inputs[0].getFile());
|
|
PreprocessorOpts.addRemappedFile(MainFilePath.str(), PreambleBuffer);
|
|
|
|
// Tell the compiler invocation to generate a temporary precompiled header.
|
|
FrontendOpts.ProgramAction = frontend::GeneratePCH;
|
|
// FIXME: Generate the precompiled header into memory?
|
|
FrontendOpts.OutputFile = PreamblePCHPath;
|
|
PreprocessorOpts.PrecompiledPreambleBytes.first = 0;
|
|
PreprocessorOpts.PrecompiledPreambleBytes.second = false;
|
|
|
|
// Create the compiler instance to use for building the precompiled preamble.
|
|
OwningPtr<CompilerInstance> Clang(new CompilerInstance());
|
|
|
|
// Recover resources if we crash before exiting this method.
|
|
llvm::CrashRecoveryContextCleanupRegistrar<CompilerInstance>
|
|
CICleanup(Clang.get());
|
|
|
|
Clang->setInvocation(&*PreambleInvocation);
|
|
OriginalSourceFile = Clang->getFrontendOpts().Inputs[0].getFile();
|
|
|
|
// Set up diagnostics, capturing all of the diagnostics produced.
|
|
Clang->setDiagnostics(&getDiagnostics());
|
|
|
|
// Create the target instance.
|
|
Clang->setTarget(TargetInfo::CreateTargetInfo(Clang->getDiagnostics(),
|
|
&Clang->getTargetOpts()));
|
|
if (!Clang->hasTarget()) {
|
|
llvm::sys::Path(FrontendOpts.OutputFile).eraseFromDisk();
|
|
Preamble.clear();
|
|
PreambleRebuildCounter = DefaultPreambleRebuildInterval;
|
|
PreprocessorOpts.eraseRemappedFile(
|
|
PreprocessorOpts.remapped_file_buffer_end() - 1);
|
|
return 0;
|
|
}
|
|
|
|
// Inform the target of the language options.
|
|
//
|
|
// FIXME: We shouldn't need to do this, the target should be immutable once
|
|
// created. This complexity should be lifted elsewhere.
|
|
Clang->getTarget().setForcedLangOptions(Clang->getLangOpts());
|
|
|
|
assert(Clang->getFrontendOpts().Inputs.size() == 1 &&
|
|
"Invocation must have exactly one source file!");
|
|
assert(Clang->getFrontendOpts().Inputs[0].getKind() != IK_AST &&
|
|
"FIXME: AST inputs not yet supported here!");
|
|
assert(Clang->getFrontendOpts().Inputs[0].getKind() != IK_LLVM_IR &&
|
|
"IR inputs not support here!");
|
|
|
|
// Clear out old caches and data.
|
|
getDiagnostics().Reset();
|
|
ProcessWarningOptions(getDiagnostics(), Clang->getDiagnosticOpts());
|
|
checkAndRemoveNonDriverDiags(StoredDiagnostics);
|
|
TopLevelDecls.clear();
|
|
TopLevelDeclsInPreamble.clear();
|
|
|
|
// Create a file manager object to provide access to and cache the filesystem.
|
|
Clang->setFileManager(new FileManager(Clang->getFileSystemOpts()));
|
|
|
|
// Create the source manager.
|
|
Clang->setSourceManager(new SourceManager(getDiagnostics(),
|
|
Clang->getFileManager()));
|
|
|
|
OwningPtr<PrecompilePreambleAction> Act;
|
|
Act.reset(new PrecompilePreambleAction(*this));
|
|
if (!Act->BeginSourceFile(*Clang.get(), Clang->getFrontendOpts().Inputs[0])) {
|
|
llvm::sys::Path(FrontendOpts.OutputFile).eraseFromDisk();
|
|
Preamble.clear();
|
|
PreambleRebuildCounter = DefaultPreambleRebuildInterval;
|
|
PreprocessorOpts.eraseRemappedFile(
|
|
PreprocessorOpts.remapped_file_buffer_end() - 1);
|
|
return 0;
|
|
}
|
|
|
|
Act->Execute();
|
|
Act->EndSourceFile();
|
|
|
|
if (Diagnostics->hasErrorOccurred()) {
|
|
// There were errors parsing the preamble, so no precompiled header was
|
|
// generated. Forget that we even tried.
|
|
// FIXME: Should we leave a note for ourselves to try again?
|
|
llvm::sys::Path(FrontendOpts.OutputFile).eraseFromDisk();
|
|
Preamble.clear();
|
|
TopLevelDeclsInPreamble.clear();
|
|
PreambleRebuildCounter = DefaultPreambleRebuildInterval;
|
|
PreprocessorOpts.eraseRemappedFile(
|
|
PreprocessorOpts.remapped_file_buffer_end() - 1);
|
|
return 0;
|
|
}
|
|
|
|
// Transfer any diagnostics generated when parsing the preamble into the set
|
|
// of preamble diagnostics.
|
|
PreambleDiagnostics.clear();
|
|
PreambleDiagnostics.insert(PreambleDiagnostics.end(),
|
|
stored_diag_afterDriver_begin(), stored_diag_end());
|
|
checkAndRemoveNonDriverDiags(StoredDiagnostics);
|
|
|
|
// Keep track of the preamble we precompiled.
|
|
setPreambleFile(this, FrontendOpts.OutputFile);
|
|
NumWarningsInPreamble = getDiagnostics().getNumWarnings();
|
|
|
|
// Keep track of all of the files that the source manager knows about,
|
|
// so we can verify whether they have changed or not.
|
|
FilesInPreamble.clear();
|
|
SourceManager &SourceMgr = Clang->getSourceManager();
|
|
const llvm::MemoryBuffer *MainFileBuffer
|
|
= SourceMgr.getBuffer(SourceMgr.getMainFileID());
|
|
for (SourceManager::fileinfo_iterator F = SourceMgr.fileinfo_begin(),
|
|
FEnd = SourceMgr.fileinfo_end();
|
|
F != FEnd;
|
|
++F) {
|
|
const FileEntry *File = F->second->OrigEntry;
|
|
if (!File || F->second->getRawBuffer() == MainFileBuffer)
|
|
continue;
|
|
|
|
FilesInPreamble[File->getName()]
|
|
= std::make_pair(F->second->getSize(), File->getModificationTime());
|
|
}
|
|
|
|
PreambleRebuildCounter = 1;
|
|
PreprocessorOpts.eraseRemappedFile(
|
|
PreprocessorOpts.remapped_file_buffer_end() - 1);
|
|
|
|
// If the hash of top-level entities differs from the hash of the top-level
|
|
// entities the last time we rebuilt the preamble, clear out the completion
|
|
// cache.
|
|
if (CurrentTopLevelHashValue != PreambleTopLevelHashValue) {
|
|
CompletionCacheTopLevelHashValue = 0;
|
|
PreambleTopLevelHashValue = CurrentTopLevelHashValue;
|
|
}
|
|
|
|
return CreatePaddedMainFileBuffer(NewPreamble.first,
|
|
PreambleReservedSize,
|
|
FrontendOpts.Inputs[0].getFile());
|
|
}
|
|
|
|
void ASTUnit::RealizeTopLevelDeclsFromPreamble() {
|
|
std::vector<Decl *> Resolved;
|
|
Resolved.reserve(TopLevelDeclsInPreamble.size());
|
|
ExternalASTSource &Source = *getASTContext().getExternalSource();
|
|
for (unsigned I = 0, N = TopLevelDeclsInPreamble.size(); I != N; ++I) {
|
|
// Resolve the declaration ID to an actual declaration, possibly
|
|
// deserializing the declaration in the process.
|
|
Decl *D = Source.GetExternalDecl(TopLevelDeclsInPreamble[I]);
|
|
if (D)
|
|
Resolved.push_back(D);
|
|
}
|
|
TopLevelDeclsInPreamble.clear();
|
|
TopLevelDecls.insert(TopLevelDecls.begin(), Resolved.begin(), Resolved.end());
|
|
}
|
|
|
|
void ASTUnit::transferASTDataFromCompilerInstance(CompilerInstance &CI) {
|
|
// Steal the created target, context, and preprocessor.
|
|
TheSema.reset(CI.takeSema());
|
|
Consumer.reset(CI.takeASTConsumer());
|
|
Ctx = &CI.getASTContext();
|
|
PP = &CI.getPreprocessor();
|
|
CI.setSourceManager(0);
|
|
CI.setFileManager(0);
|
|
Target = &CI.getTarget();
|
|
Reader = CI.getModuleManager();
|
|
}
|
|
|
|
StringRef ASTUnit::getMainFileName() const {
|
|
if (Invocation && !Invocation->getFrontendOpts().Inputs.empty()) {
|
|
const FrontendInputFile &Input = Invocation->getFrontendOpts().Inputs[0];
|
|
if (Input.isFile())
|
|
return Input.getFile();
|
|
else
|
|
return Input.getBuffer()->getBufferIdentifier();
|
|
}
|
|
|
|
if (SourceMgr) {
|
|
if (const FileEntry *
|
|
FE = SourceMgr->getFileEntryForID(SourceMgr->getMainFileID()))
|
|
return FE->getName();
|
|
}
|
|
|
|
return StringRef();
|
|
}
|
|
|
|
StringRef ASTUnit::getASTFileName() const {
|
|
if (!isMainFileAST())
|
|
return StringRef();
|
|
|
|
serialization::ModuleFile &
|
|
Mod = Reader->getModuleManager().getPrimaryModule();
|
|
return Mod.FileName;
|
|
}
|
|
|
|
ASTUnit *ASTUnit::create(CompilerInvocation *CI,
|
|
IntrusiveRefCntPtr<DiagnosticsEngine> Diags,
|
|
bool CaptureDiagnostics,
|
|
bool UserFilesAreVolatile) {
|
|
OwningPtr<ASTUnit> AST;
|
|
AST.reset(new ASTUnit(false));
|
|
ConfigureDiags(Diags, 0, 0, *AST, CaptureDiagnostics);
|
|
AST->Diagnostics = Diags;
|
|
AST->Invocation = CI;
|
|
AST->FileSystemOpts = CI->getFileSystemOpts();
|
|
AST->FileMgr = new FileManager(AST->FileSystemOpts);
|
|
AST->UserFilesAreVolatile = UserFilesAreVolatile;
|
|
AST->SourceMgr = new SourceManager(AST->getDiagnostics(), *AST->FileMgr,
|
|
UserFilesAreVolatile);
|
|
|
|
return AST.take();
|
|
}
|
|
|
|
ASTUnit *ASTUnit::LoadFromCompilerInvocationAction(CompilerInvocation *CI,
|
|
IntrusiveRefCntPtr<DiagnosticsEngine> Diags,
|
|
ASTFrontendAction *Action,
|
|
ASTUnit *Unit,
|
|
bool Persistent,
|
|
StringRef ResourceFilesPath,
|
|
bool OnlyLocalDecls,
|
|
bool CaptureDiagnostics,
|
|
bool PrecompilePreamble,
|
|
bool CacheCodeCompletionResults,
|
|
bool IncludeBriefCommentsInCodeCompletion,
|
|
bool UserFilesAreVolatile,
|
|
OwningPtr<ASTUnit> *ErrAST) {
|
|
assert(CI && "A CompilerInvocation is required");
|
|
|
|
OwningPtr<ASTUnit> OwnAST;
|
|
ASTUnit *AST = Unit;
|
|
if (!AST) {
|
|
// Create the AST unit.
|
|
OwnAST.reset(create(CI, Diags, CaptureDiagnostics, UserFilesAreVolatile));
|
|
AST = OwnAST.get();
|
|
}
|
|
|
|
if (!ResourceFilesPath.empty()) {
|
|
// Override the resources path.
|
|
CI->getHeaderSearchOpts().ResourceDir = ResourceFilesPath;
|
|
}
|
|
AST->OnlyLocalDecls = OnlyLocalDecls;
|
|
AST->CaptureDiagnostics = CaptureDiagnostics;
|
|
if (PrecompilePreamble)
|
|
AST->PreambleRebuildCounter = 2;
|
|
AST->TUKind = Action ? Action->getTranslationUnitKind() : TU_Complete;
|
|
AST->ShouldCacheCodeCompletionResults = CacheCodeCompletionResults;
|
|
AST->IncludeBriefCommentsInCodeCompletion
|
|
= IncludeBriefCommentsInCodeCompletion;
|
|
|
|
// Recover resources if we crash before exiting this method.
|
|
llvm::CrashRecoveryContextCleanupRegistrar<ASTUnit>
|
|
ASTUnitCleanup(OwnAST.get());
|
|
llvm::CrashRecoveryContextCleanupRegistrar<DiagnosticsEngine,
|
|
llvm::CrashRecoveryContextReleaseRefCleanup<DiagnosticsEngine> >
|
|
DiagCleanup(Diags.getPtr());
|
|
|
|
// We'll manage file buffers ourselves.
|
|
CI->getPreprocessorOpts().RetainRemappedFileBuffers = true;
|
|
CI->getFrontendOpts().DisableFree = false;
|
|
ProcessWarningOptions(AST->getDiagnostics(), CI->getDiagnosticOpts());
|
|
|
|
// Create the compiler instance to use for building the AST.
|
|
OwningPtr<CompilerInstance> Clang(new CompilerInstance());
|
|
|
|
// Recover resources if we crash before exiting this method.
|
|
llvm::CrashRecoveryContextCleanupRegistrar<CompilerInstance>
|
|
CICleanup(Clang.get());
|
|
|
|
Clang->setInvocation(CI);
|
|
AST->OriginalSourceFile = Clang->getFrontendOpts().Inputs[0].getFile();
|
|
|
|
// Set up diagnostics, capturing any diagnostics that would
|
|
// otherwise be dropped.
|
|
Clang->setDiagnostics(&AST->getDiagnostics());
|
|
|
|
// Create the target instance.
|
|
Clang->setTarget(TargetInfo::CreateTargetInfo(Clang->getDiagnostics(),
|
|
&Clang->getTargetOpts()));
|
|
if (!Clang->hasTarget())
|
|
return 0;
|
|
|
|
// Inform the target of the language options.
|
|
//
|
|
// FIXME: We shouldn't need to do this, the target should be immutable once
|
|
// created. This complexity should be lifted elsewhere.
|
|
Clang->getTarget().setForcedLangOptions(Clang->getLangOpts());
|
|
|
|
assert(Clang->getFrontendOpts().Inputs.size() == 1 &&
|
|
"Invocation must have exactly one source file!");
|
|
assert(Clang->getFrontendOpts().Inputs[0].getKind() != IK_AST &&
|
|
"FIXME: AST inputs not yet supported here!");
|
|
assert(Clang->getFrontendOpts().Inputs[0].getKind() != IK_LLVM_IR &&
|
|
"IR inputs not supported here!");
|
|
|
|
// Configure the various subsystems.
|
|
AST->TheSema.reset();
|
|
AST->Ctx = 0;
|
|
AST->PP = 0;
|
|
AST->Reader = 0;
|
|
|
|
// Create a file manager object to provide access to and cache the filesystem.
|
|
Clang->setFileManager(&AST->getFileManager());
|
|
|
|
// Create the source manager.
|
|
Clang->setSourceManager(&AST->getSourceManager());
|
|
|
|
ASTFrontendAction *Act = Action;
|
|
|
|
OwningPtr<TopLevelDeclTrackerAction> TrackerAct;
|
|
if (!Act) {
|
|
TrackerAct.reset(new TopLevelDeclTrackerAction(*AST));
|
|
Act = TrackerAct.get();
|
|
}
|
|
|
|
// Recover resources if we crash before exiting this method.
|
|
llvm::CrashRecoveryContextCleanupRegistrar<TopLevelDeclTrackerAction>
|
|
ActCleanup(TrackerAct.get());
|
|
|
|
if (!Act->BeginSourceFile(*Clang.get(), Clang->getFrontendOpts().Inputs[0])) {
|
|
AST->transferASTDataFromCompilerInstance(*Clang);
|
|
if (OwnAST && ErrAST)
|
|
ErrAST->swap(OwnAST);
|
|
|
|
return 0;
|
|
}
|
|
|
|
if (Persistent && !TrackerAct) {
|
|
Clang->getPreprocessor().addPPCallbacks(
|
|
new MacroDefinitionTrackerPPCallbacks(AST->getCurrentTopLevelHashValue()));
|
|
std::vector<ASTConsumer*> Consumers;
|
|
if (Clang->hasASTConsumer())
|
|
Consumers.push_back(Clang->takeASTConsumer());
|
|
Consumers.push_back(new TopLevelDeclTrackerConsumer(*AST,
|
|
AST->getCurrentTopLevelHashValue()));
|
|
Clang->setASTConsumer(new MultiplexConsumer(Consumers));
|
|
}
|
|
if (!Act->Execute()) {
|
|
AST->transferASTDataFromCompilerInstance(*Clang);
|
|
if (OwnAST && ErrAST)
|
|
ErrAST->swap(OwnAST);
|
|
|
|
return 0;
|
|
}
|
|
|
|
// Steal the created target, context, and preprocessor.
|
|
AST->transferASTDataFromCompilerInstance(*Clang);
|
|
|
|
Act->EndSourceFile();
|
|
|
|
if (OwnAST)
|
|
return OwnAST.take();
|
|
else
|
|
return AST;
|
|
}
|
|
|
|
bool ASTUnit::LoadFromCompilerInvocation(bool PrecompilePreamble) {
|
|
if (!Invocation)
|
|
return true;
|
|
|
|
// We'll manage file buffers ourselves.
|
|
Invocation->getPreprocessorOpts().RetainRemappedFileBuffers = true;
|
|
Invocation->getFrontendOpts().DisableFree = false;
|
|
ProcessWarningOptions(getDiagnostics(), Invocation->getDiagnosticOpts());
|
|
|
|
llvm::MemoryBuffer *OverrideMainBuffer = 0;
|
|
if (PrecompilePreamble) {
|
|
PreambleRebuildCounter = 2;
|
|
OverrideMainBuffer
|
|
= getMainBufferWithPrecompiledPreamble(*Invocation);
|
|
}
|
|
|
|
SimpleTimer ParsingTimer(WantTiming);
|
|
ParsingTimer.setOutput("Parsing " + getMainFileName());
|
|
|
|
// Recover resources if we crash before exiting this method.
|
|
llvm::CrashRecoveryContextCleanupRegistrar<llvm::MemoryBuffer>
|
|
MemBufferCleanup(OverrideMainBuffer);
|
|
|
|
return Parse(OverrideMainBuffer);
|
|
}
|
|
|
|
ASTUnit *ASTUnit::LoadFromCompilerInvocation(CompilerInvocation *CI,
|
|
IntrusiveRefCntPtr<DiagnosticsEngine> Diags,
|
|
bool OnlyLocalDecls,
|
|
bool CaptureDiagnostics,
|
|
bool PrecompilePreamble,
|
|
TranslationUnitKind TUKind,
|
|
bool CacheCodeCompletionResults,
|
|
bool IncludeBriefCommentsInCodeCompletion,
|
|
bool UserFilesAreVolatile) {
|
|
// Create the AST unit.
|
|
OwningPtr<ASTUnit> AST;
|
|
AST.reset(new ASTUnit(false));
|
|
ConfigureDiags(Diags, 0, 0, *AST, CaptureDiagnostics);
|
|
AST->Diagnostics = Diags;
|
|
AST->OnlyLocalDecls = OnlyLocalDecls;
|
|
AST->CaptureDiagnostics = CaptureDiagnostics;
|
|
AST->TUKind = TUKind;
|
|
AST->ShouldCacheCodeCompletionResults = CacheCodeCompletionResults;
|
|
AST->IncludeBriefCommentsInCodeCompletion
|
|
= IncludeBriefCommentsInCodeCompletion;
|
|
AST->Invocation = CI;
|
|
AST->FileSystemOpts = CI->getFileSystemOpts();
|
|
AST->FileMgr = new FileManager(AST->FileSystemOpts);
|
|
AST->UserFilesAreVolatile = UserFilesAreVolatile;
|
|
|
|
// Recover resources if we crash before exiting this method.
|
|
llvm::CrashRecoveryContextCleanupRegistrar<ASTUnit>
|
|
ASTUnitCleanup(AST.get());
|
|
llvm::CrashRecoveryContextCleanupRegistrar<DiagnosticsEngine,
|
|
llvm::CrashRecoveryContextReleaseRefCleanup<DiagnosticsEngine> >
|
|
DiagCleanup(Diags.getPtr());
|
|
|
|
return AST->LoadFromCompilerInvocation(PrecompilePreamble)? 0 : AST.take();
|
|
}
|
|
|
|
ASTUnit *ASTUnit::LoadFromCommandLine(const char **ArgBegin,
|
|
const char **ArgEnd,
|
|
IntrusiveRefCntPtr<DiagnosticsEngine> Diags,
|
|
StringRef ResourceFilesPath,
|
|
bool OnlyLocalDecls,
|
|
bool CaptureDiagnostics,
|
|
RemappedFile *RemappedFiles,
|
|
unsigned NumRemappedFiles,
|
|
bool RemappedFilesKeepOriginalName,
|
|
bool PrecompilePreamble,
|
|
TranslationUnitKind TUKind,
|
|
bool CacheCodeCompletionResults,
|
|
bool IncludeBriefCommentsInCodeCompletion,
|
|
bool AllowPCHWithCompilerErrors,
|
|
bool SkipFunctionBodies,
|
|
bool UserFilesAreVolatile,
|
|
bool ForSerialization,
|
|
OwningPtr<ASTUnit> *ErrAST) {
|
|
if (!Diags.getPtr()) {
|
|
// No diagnostics engine was provided, so create our own diagnostics object
|
|
// with the default options.
|
|
Diags = CompilerInstance::createDiagnostics(new DiagnosticOptions());
|
|
}
|
|
|
|
SmallVector<StoredDiagnostic, 4> StoredDiagnostics;
|
|
|
|
IntrusiveRefCntPtr<CompilerInvocation> CI;
|
|
|
|
{
|
|
|
|
CaptureDroppedDiagnostics Capture(CaptureDiagnostics, *Diags,
|
|
StoredDiagnostics);
|
|
|
|
CI = clang::createInvocationFromCommandLine(
|
|
llvm::makeArrayRef(ArgBegin, ArgEnd),
|
|
Diags);
|
|
if (!CI)
|
|
return 0;
|
|
}
|
|
|
|
// Override any files that need remapping
|
|
for (unsigned I = 0; I != NumRemappedFiles; ++I) {
|
|
FilenameOrMemBuf fileOrBuf = RemappedFiles[I].second;
|
|
if (const llvm::MemoryBuffer *
|
|
memBuf = fileOrBuf.dyn_cast<const llvm::MemoryBuffer *>()) {
|
|
CI->getPreprocessorOpts().addRemappedFile(RemappedFiles[I].first, memBuf);
|
|
} else {
|
|
const char *fname = fileOrBuf.get<const char *>();
|
|
CI->getPreprocessorOpts().addRemappedFile(RemappedFiles[I].first, fname);
|
|
}
|
|
}
|
|
PreprocessorOptions &PPOpts = CI->getPreprocessorOpts();
|
|
PPOpts.RemappedFilesKeepOriginalName = RemappedFilesKeepOriginalName;
|
|
PPOpts.AllowPCHWithCompilerErrors = AllowPCHWithCompilerErrors;
|
|
|
|
// Override the resources path.
|
|
CI->getHeaderSearchOpts().ResourceDir = ResourceFilesPath;
|
|
|
|
CI->getFrontendOpts().SkipFunctionBodies = SkipFunctionBodies;
|
|
|
|
// Create the AST unit.
|
|
OwningPtr<ASTUnit> AST;
|
|
AST.reset(new ASTUnit(false));
|
|
ConfigureDiags(Diags, ArgBegin, ArgEnd, *AST, CaptureDiagnostics);
|
|
AST->Diagnostics = Diags;
|
|
Diags = 0; // Zero out now to ease cleanup during crash recovery.
|
|
AST->FileSystemOpts = CI->getFileSystemOpts();
|
|
AST->FileMgr = new FileManager(AST->FileSystemOpts);
|
|
AST->OnlyLocalDecls = OnlyLocalDecls;
|
|
AST->CaptureDiagnostics = CaptureDiagnostics;
|
|
AST->TUKind = TUKind;
|
|
AST->ShouldCacheCodeCompletionResults = CacheCodeCompletionResults;
|
|
AST->IncludeBriefCommentsInCodeCompletion
|
|
= IncludeBriefCommentsInCodeCompletion;
|
|
AST->UserFilesAreVolatile = UserFilesAreVolatile;
|
|
AST->NumStoredDiagnosticsFromDriver = StoredDiagnostics.size();
|
|
AST->StoredDiagnostics.swap(StoredDiagnostics);
|
|
AST->Invocation = CI;
|
|
if (ForSerialization)
|
|
AST->WriterData.reset(new ASTWriterData());
|
|
CI = 0; // Zero out now to ease cleanup during crash recovery.
|
|
|
|
// Recover resources if we crash before exiting this method.
|
|
llvm::CrashRecoveryContextCleanupRegistrar<ASTUnit>
|
|
ASTUnitCleanup(AST.get());
|
|
|
|
if (AST->LoadFromCompilerInvocation(PrecompilePreamble)) {
|
|
// Some error occurred, if caller wants to examine diagnostics, pass it the
|
|
// ASTUnit.
|
|
if (ErrAST) {
|
|
AST->StoredDiagnostics.swap(AST->FailedParseDiagnostics);
|
|
ErrAST->swap(AST);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
return AST.take();
|
|
}
|
|
|
|
bool ASTUnit::Reparse(RemappedFile *RemappedFiles, unsigned NumRemappedFiles) {
|
|
if (!Invocation)
|
|
return true;
|
|
|
|
clearFileLevelDecls();
|
|
|
|
SimpleTimer ParsingTimer(WantTiming);
|
|
ParsingTimer.setOutput("Reparsing " + getMainFileName());
|
|
|
|
// Remap files.
|
|
PreprocessorOptions &PPOpts = Invocation->getPreprocessorOpts();
|
|
for (PreprocessorOptions::remapped_file_buffer_iterator
|
|
R = PPOpts.remapped_file_buffer_begin(),
|
|
REnd = PPOpts.remapped_file_buffer_end();
|
|
R != REnd;
|
|
++R) {
|
|
delete R->second;
|
|
}
|
|
Invocation->getPreprocessorOpts().clearRemappedFiles();
|
|
for (unsigned I = 0; I != NumRemappedFiles; ++I) {
|
|
FilenameOrMemBuf fileOrBuf = RemappedFiles[I].second;
|
|
if (const llvm::MemoryBuffer *
|
|
memBuf = fileOrBuf.dyn_cast<const llvm::MemoryBuffer *>()) {
|
|
Invocation->getPreprocessorOpts().addRemappedFile(RemappedFiles[I].first,
|
|
memBuf);
|
|
} else {
|
|
const char *fname = fileOrBuf.get<const char *>();
|
|
Invocation->getPreprocessorOpts().addRemappedFile(RemappedFiles[I].first,
|
|
fname);
|
|
}
|
|
}
|
|
|
|
// If we have a preamble file lying around, or if we might try to
|
|
// build a precompiled preamble, do so now.
|
|
llvm::MemoryBuffer *OverrideMainBuffer = 0;
|
|
if (!getPreambleFile(this).empty() || PreambleRebuildCounter > 0)
|
|
OverrideMainBuffer = getMainBufferWithPrecompiledPreamble(*Invocation);
|
|
|
|
// Clear out the diagnostics state.
|
|
getDiagnostics().Reset();
|
|
ProcessWarningOptions(getDiagnostics(), Invocation->getDiagnosticOpts());
|
|
if (OverrideMainBuffer)
|
|
getDiagnostics().setNumWarnings(NumWarningsInPreamble);
|
|
|
|
// Parse the sources
|
|
bool Result = Parse(OverrideMainBuffer);
|
|
|
|
// If we're caching global code-completion results, and the top-level
|
|
// declarations have changed, clear out the code-completion cache.
|
|
if (!Result && ShouldCacheCodeCompletionResults &&
|
|
CurrentTopLevelHashValue != CompletionCacheTopLevelHashValue)
|
|
CacheCodeCompletionResults();
|
|
|
|
// We now need to clear out the completion info related to this translation
|
|
// unit; it'll be recreated if necessary.
|
|
CCTUInfo.reset();
|
|
|
|
return Result;
|
|
}
|
|
|
|
//----------------------------------------------------------------------------//
|
|
// Code completion
|
|
//----------------------------------------------------------------------------//
|
|
|
|
namespace {
|
|
/// \brief Code completion consumer that combines the cached code-completion
|
|
/// results from an ASTUnit with the code-completion results provided to it,
|
|
/// then passes the result on to
|
|
class AugmentedCodeCompleteConsumer : public CodeCompleteConsumer {
|
|
uint64_t NormalContexts;
|
|
ASTUnit &AST;
|
|
CodeCompleteConsumer &Next;
|
|
|
|
public:
|
|
AugmentedCodeCompleteConsumer(ASTUnit &AST, CodeCompleteConsumer &Next,
|
|
const CodeCompleteOptions &CodeCompleteOpts)
|
|
: CodeCompleteConsumer(CodeCompleteOpts, Next.isOutputBinary()),
|
|
AST(AST), Next(Next)
|
|
{
|
|
// Compute the set of contexts in which we will look when we don't have
|
|
// any information about the specific context.
|
|
NormalContexts
|
|
= (1LL << CodeCompletionContext::CCC_TopLevel)
|
|
| (1LL << CodeCompletionContext::CCC_ObjCInterface)
|
|
| (1LL << CodeCompletionContext::CCC_ObjCImplementation)
|
|
| (1LL << CodeCompletionContext::CCC_ObjCIvarList)
|
|
| (1LL << CodeCompletionContext::CCC_Statement)
|
|
| (1LL << CodeCompletionContext::CCC_Expression)
|
|
| (1LL << CodeCompletionContext::CCC_ObjCMessageReceiver)
|
|
| (1LL << CodeCompletionContext::CCC_DotMemberAccess)
|
|
| (1LL << CodeCompletionContext::CCC_ArrowMemberAccess)
|
|
| (1LL << CodeCompletionContext::CCC_ObjCPropertyAccess)
|
|
| (1LL << CodeCompletionContext::CCC_ObjCProtocolName)
|
|
| (1LL << CodeCompletionContext::CCC_ParenthesizedExpression)
|
|
| (1LL << CodeCompletionContext::CCC_Recovery);
|
|
|
|
if (AST.getASTContext().getLangOpts().CPlusPlus)
|
|
NormalContexts |= (1LL << CodeCompletionContext::CCC_EnumTag)
|
|
| (1LL << CodeCompletionContext::CCC_UnionTag)
|
|
| (1LL << CodeCompletionContext::CCC_ClassOrStructTag);
|
|
}
|
|
|
|
virtual void ProcessCodeCompleteResults(Sema &S,
|
|
CodeCompletionContext Context,
|
|
CodeCompletionResult *Results,
|
|
unsigned NumResults);
|
|
|
|
virtual void ProcessOverloadCandidates(Sema &S, unsigned CurrentArg,
|
|
OverloadCandidate *Candidates,
|
|
unsigned NumCandidates) {
|
|
Next.ProcessOverloadCandidates(S, CurrentArg, Candidates, NumCandidates);
|
|
}
|
|
|
|
virtual CodeCompletionAllocator &getAllocator() {
|
|
return Next.getAllocator();
|
|
}
|
|
|
|
virtual CodeCompletionTUInfo &getCodeCompletionTUInfo() {
|
|
return Next.getCodeCompletionTUInfo();
|
|
}
|
|
};
|
|
}
|
|
|
|
/// \brief Helper function that computes which global names are hidden by the
|
|
/// local code-completion results.
|
|
static void CalculateHiddenNames(const CodeCompletionContext &Context,
|
|
CodeCompletionResult *Results,
|
|
unsigned NumResults,
|
|
ASTContext &Ctx,
|
|
llvm::StringSet<llvm::BumpPtrAllocator> &HiddenNames){
|
|
bool OnlyTagNames = false;
|
|
switch (Context.getKind()) {
|
|
case CodeCompletionContext::CCC_Recovery:
|
|
case CodeCompletionContext::CCC_TopLevel:
|
|
case CodeCompletionContext::CCC_ObjCInterface:
|
|
case CodeCompletionContext::CCC_ObjCImplementation:
|
|
case CodeCompletionContext::CCC_ObjCIvarList:
|
|
case CodeCompletionContext::CCC_ClassStructUnion:
|
|
case CodeCompletionContext::CCC_Statement:
|
|
case CodeCompletionContext::CCC_Expression:
|
|
case CodeCompletionContext::CCC_ObjCMessageReceiver:
|
|
case CodeCompletionContext::CCC_DotMemberAccess:
|
|
case CodeCompletionContext::CCC_ArrowMemberAccess:
|
|
case CodeCompletionContext::CCC_ObjCPropertyAccess:
|
|
case CodeCompletionContext::CCC_Namespace:
|
|
case CodeCompletionContext::CCC_Type:
|
|
case CodeCompletionContext::CCC_Name:
|
|
case CodeCompletionContext::CCC_PotentiallyQualifiedName:
|
|
case CodeCompletionContext::CCC_ParenthesizedExpression:
|
|
case CodeCompletionContext::CCC_ObjCInterfaceName:
|
|
break;
|
|
|
|
case CodeCompletionContext::CCC_EnumTag:
|
|
case CodeCompletionContext::CCC_UnionTag:
|
|
case CodeCompletionContext::CCC_ClassOrStructTag:
|
|
OnlyTagNames = true;
|
|
break;
|
|
|
|
case CodeCompletionContext::CCC_ObjCProtocolName:
|
|
case CodeCompletionContext::CCC_MacroName:
|
|
case CodeCompletionContext::CCC_MacroNameUse:
|
|
case CodeCompletionContext::CCC_PreprocessorExpression:
|
|
case CodeCompletionContext::CCC_PreprocessorDirective:
|
|
case CodeCompletionContext::CCC_NaturalLanguage:
|
|
case CodeCompletionContext::CCC_SelectorName:
|
|
case CodeCompletionContext::CCC_TypeQualifiers:
|
|
case CodeCompletionContext::CCC_Other:
|
|
case CodeCompletionContext::CCC_OtherWithMacros:
|
|
case CodeCompletionContext::CCC_ObjCInstanceMessage:
|
|
case CodeCompletionContext::CCC_ObjCClassMessage:
|
|
case CodeCompletionContext::CCC_ObjCCategoryName:
|
|
// We're looking for nothing, or we're looking for names that cannot
|
|
// be hidden.
|
|
return;
|
|
}
|
|
|
|
typedef CodeCompletionResult Result;
|
|
for (unsigned I = 0; I != NumResults; ++I) {
|
|
if (Results[I].Kind != Result::RK_Declaration)
|
|
continue;
|
|
|
|
unsigned IDNS
|
|
= Results[I].Declaration->getUnderlyingDecl()->getIdentifierNamespace();
|
|
|
|
bool Hiding = false;
|
|
if (OnlyTagNames)
|
|
Hiding = (IDNS & Decl::IDNS_Tag);
|
|
else {
|
|
unsigned HiddenIDNS = (Decl::IDNS_Type | Decl::IDNS_Member |
|
|
Decl::IDNS_Namespace | Decl::IDNS_Ordinary |
|
|
Decl::IDNS_NonMemberOperator);
|
|
if (Ctx.getLangOpts().CPlusPlus)
|
|
HiddenIDNS |= Decl::IDNS_Tag;
|
|
Hiding = (IDNS & HiddenIDNS);
|
|
}
|
|
|
|
if (!Hiding)
|
|
continue;
|
|
|
|
DeclarationName Name = Results[I].Declaration->getDeclName();
|
|
if (IdentifierInfo *Identifier = Name.getAsIdentifierInfo())
|
|
HiddenNames.insert(Identifier->getName());
|
|
else
|
|
HiddenNames.insert(Name.getAsString());
|
|
}
|
|
}
|
|
|
|
|
|
void AugmentedCodeCompleteConsumer::ProcessCodeCompleteResults(Sema &S,
|
|
CodeCompletionContext Context,
|
|
CodeCompletionResult *Results,
|
|
unsigned NumResults) {
|
|
// Merge the results we were given with the results we cached.
|
|
bool AddedResult = false;
|
|
uint64_t InContexts =
|
|
Context.getKind() == CodeCompletionContext::CCC_Recovery
|
|
? NormalContexts : (1LL << Context.getKind());
|
|
// Contains the set of names that are hidden by "local" completion results.
|
|
llvm::StringSet<llvm::BumpPtrAllocator> HiddenNames;
|
|
typedef CodeCompletionResult Result;
|
|
SmallVector<Result, 8> AllResults;
|
|
for (ASTUnit::cached_completion_iterator
|
|
C = AST.cached_completion_begin(),
|
|
CEnd = AST.cached_completion_end();
|
|
C != CEnd; ++C) {
|
|
// If the context we are in matches any of the contexts we are
|
|
// interested in, we'll add this result.
|
|
if ((C->ShowInContexts & InContexts) == 0)
|
|
continue;
|
|
|
|
// If we haven't added any results previously, do so now.
|
|
if (!AddedResult) {
|
|
CalculateHiddenNames(Context, Results, NumResults, S.Context,
|
|
HiddenNames);
|
|
AllResults.insert(AllResults.end(), Results, Results + NumResults);
|
|
AddedResult = true;
|
|
}
|
|
|
|
// Determine whether this global completion result is hidden by a local
|
|
// completion result. If so, skip it.
|
|
if (C->Kind != CXCursor_MacroDefinition &&
|
|
HiddenNames.count(C->Completion->getTypedText()))
|
|
continue;
|
|
|
|
// Adjust priority based on similar type classes.
|
|
unsigned Priority = C->Priority;
|
|
CodeCompletionString *Completion = C->Completion;
|
|
if (!Context.getPreferredType().isNull()) {
|
|
if (C->Kind == CXCursor_MacroDefinition) {
|
|
Priority = getMacroUsagePriority(C->Completion->getTypedText(),
|
|
S.getLangOpts(),
|
|
Context.getPreferredType()->isAnyPointerType());
|
|
} else if (C->Type) {
|
|
CanQualType Expected
|
|
= S.Context.getCanonicalType(
|
|
Context.getPreferredType().getUnqualifiedType());
|
|
SimplifiedTypeClass ExpectedSTC = getSimplifiedTypeClass(Expected);
|
|
if (ExpectedSTC == C->TypeClass) {
|
|
// We know this type is similar; check for an exact match.
|
|
llvm::StringMap<unsigned> &CachedCompletionTypes
|
|
= AST.getCachedCompletionTypes();
|
|
llvm::StringMap<unsigned>::iterator Pos
|
|
= CachedCompletionTypes.find(QualType(Expected).getAsString());
|
|
if (Pos != CachedCompletionTypes.end() && Pos->second == C->Type)
|
|
Priority /= CCF_ExactTypeMatch;
|
|
else
|
|
Priority /= CCF_SimilarTypeMatch;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Adjust the completion string, if required.
|
|
if (C->Kind == CXCursor_MacroDefinition &&
|
|
Context.getKind() == CodeCompletionContext::CCC_MacroNameUse) {
|
|
// Create a new code-completion string that just contains the
|
|
// macro name, without its arguments.
|
|
CodeCompletionBuilder Builder(getAllocator(), getCodeCompletionTUInfo(),
|
|
CCP_CodePattern, C->Availability);
|
|
Builder.AddTypedTextChunk(C->Completion->getTypedText());
|
|
Priority = CCP_CodePattern;
|
|
Completion = Builder.TakeString();
|
|
}
|
|
|
|
AllResults.push_back(Result(Completion, Priority, C->Kind,
|
|
C->Availability));
|
|
}
|
|
|
|
// If we did not add any cached completion results, just forward the
|
|
// results we were given to the next consumer.
|
|
if (!AddedResult) {
|
|
Next.ProcessCodeCompleteResults(S, Context, Results, NumResults);
|
|
return;
|
|
}
|
|
|
|
Next.ProcessCodeCompleteResults(S, Context, AllResults.data(),
|
|
AllResults.size());
|
|
}
|
|
|
|
|
|
|
|
void ASTUnit::CodeComplete(StringRef File, unsigned Line, unsigned Column,
|
|
RemappedFile *RemappedFiles,
|
|
unsigned NumRemappedFiles,
|
|
bool IncludeMacros,
|
|
bool IncludeCodePatterns,
|
|
bool IncludeBriefComments,
|
|
CodeCompleteConsumer &Consumer,
|
|
DiagnosticsEngine &Diag, LangOptions &LangOpts,
|
|
SourceManager &SourceMgr, FileManager &FileMgr,
|
|
SmallVectorImpl<StoredDiagnostic> &StoredDiagnostics,
|
|
SmallVectorImpl<const llvm::MemoryBuffer *> &OwnedBuffers) {
|
|
if (!Invocation)
|
|
return;
|
|
|
|
SimpleTimer CompletionTimer(WantTiming);
|
|
CompletionTimer.setOutput("Code completion @ " + File + ":" +
|
|
Twine(Line) + ":" + Twine(Column));
|
|
|
|
IntrusiveRefCntPtr<CompilerInvocation>
|
|
CCInvocation(new CompilerInvocation(*Invocation));
|
|
|
|
FrontendOptions &FrontendOpts = CCInvocation->getFrontendOpts();
|
|
CodeCompleteOptions &CodeCompleteOpts = FrontendOpts.CodeCompleteOpts;
|
|
PreprocessorOptions &PreprocessorOpts = CCInvocation->getPreprocessorOpts();
|
|
|
|
CodeCompleteOpts.IncludeMacros = IncludeMacros &&
|
|
CachedCompletionResults.empty();
|
|
CodeCompleteOpts.IncludeCodePatterns = IncludeCodePatterns;
|
|
CodeCompleteOpts.IncludeGlobals = CachedCompletionResults.empty();
|
|
CodeCompleteOpts.IncludeBriefComments = IncludeBriefComments;
|
|
|
|
assert(IncludeBriefComments == this->IncludeBriefCommentsInCodeCompletion);
|
|
|
|
FrontendOpts.CodeCompletionAt.FileName = File;
|
|
FrontendOpts.CodeCompletionAt.Line = Line;
|
|
FrontendOpts.CodeCompletionAt.Column = Column;
|
|
|
|
// Set the language options appropriately.
|
|
LangOpts = *CCInvocation->getLangOpts();
|
|
|
|
OwningPtr<CompilerInstance> Clang(new CompilerInstance());
|
|
|
|
// Recover resources if we crash before exiting this method.
|
|
llvm::CrashRecoveryContextCleanupRegistrar<CompilerInstance>
|
|
CICleanup(Clang.get());
|
|
|
|
Clang->setInvocation(&*CCInvocation);
|
|
OriginalSourceFile = Clang->getFrontendOpts().Inputs[0].getFile();
|
|
|
|
// Set up diagnostics, capturing any diagnostics produced.
|
|
Clang->setDiagnostics(&Diag);
|
|
ProcessWarningOptions(Diag, CCInvocation->getDiagnosticOpts());
|
|
CaptureDroppedDiagnostics Capture(true,
|
|
Clang->getDiagnostics(),
|
|
StoredDiagnostics);
|
|
|
|
// Create the target instance.
|
|
Clang->setTarget(TargetInfo::CreateTargetInfo(Clang->getDiagnostics(),
|
|
&Clang->getTargetOpts()));
|
|
if (!Clang->hasTarget()) {
|
|
Clang->setInvocation(0);
|
|
return;
|
|
}
|
|
|
|
// Inform the target of the language options.
|
|
//
|
|
// FIXME: We shouldn't need to do this, the target should be immutable once
|
|
// created. This complexity should be lifted elsewhere.
|
|
Clang->getTarget().setForcedLangOptions(Clang->getLangOpts());
|
|
|
|
assert(Clang->getFrontendOpts().Inputs.size() == 1 &&
|
|
"Invocation must have exactly one source file!");
|
|
assert(Clang->getFrontendOpts().Inputs[0].getKind() != IK_AST &&
|
|
"FIXME: AST inputs not yet supported here!");
|
|
assert(Clang->getFrontendOpts().Inputs[0].getKind() != IK_LLVM_IR &&
|
|
"IR inputs not support here!");
|
|
|
|
|
|
// Use the source and file managers that we were given.
|
|
Clang->setFileManager(&FileMgr);
|
|
Clang->setSourceManager(&SourceMgr);
|
|
|
|
// Remap files.
|
|
PreprocessorOpts.clearRemappedFiles();
|
|
PreprocessorOpts.RetainRemappedFileBuffers = true;
|
|
for (unsigned I = 0; I != NumRemappedFiles; ++I) {
|
|
FilenameOrMemBuf fileOrBuf = RemappedFiles[I].second;
|
|
if (const llvm::MemoryBuffer *
|
|
memBuf = fileOrBuf.dyn_cast<const llvm::MemoryBuffer *>()) {
|
|
PreprocessorOpts.addRemappedFile(RemappedFiles[I].first, memBuf);
|
|
OwnedBuffers.push_back(memBuf);
|
|
} else {
|
|
const char *fname = fileOrBuf.get<const char *>();
|
|
PreprocessorOpts.addRemappedFile(RemappedFiles[I].first, fname);
|
|
}
|
|
}
|
|
|
|
// Use the code completion consumer we were given, but adding any cached
|
|
// code-completion results.
|
|
AugmentedCodeCompleteConsumer *AugmentedConsumer
|
|
= new AugmentedCodeCompleteConsumer(*this, Consumer, CodeCompleteOpts);
|
|
Clang->setCodeCompletionConsumer(AugmentedConsumer);
|
|
|
|
// If we have a precompiled preamble, try to use it. We only allow
|
|
// the use of the precompiled preamble if we're if the completion
|
|
// point is within the main file, after the end of the precompiled
|
|
// preamble.
|
|
llvm::MemoryBuffer *OverrideMainBuffer = 0;
|
|
if (!getPreambleFile(this).empty()) {
|
|
using llvm::sys::FileStatus;
|
|
llvm::sys::PathWithStatus CompleteFilePath(File);
|
|
llvm::sys::PathWithStatus MainPath(OriginalSourceFile);
|
|
if (const FileStatus *CompleteFileStatus = CompleteFilePath.getFileStatus())
|
|
if (const FileStatus *MainStatus = MainPath.getFileStatus())
|
|
if (CompleteFileStatus->getUniqueID() == MainStatus->getUniqueID() &&
|
|
Line > 1)
|
|
OverrideMainBuffer
|
|
= getMainBufferWithPrecompiledPreamble(*CCInvocation, false,
|
|
Line - 1);
|
|
}
|
|
|
|
// If the main file has been overridden due to the use of a preamble,
|
|
// make that override happen and introduce the preamble.
|
|
if (OverrideMainBuffer) {
|
|
PreprocessorOpts.addRemappedFile(OriginalSourceFile, OverrideMainBuffer);
|
|
PreprocessorOpts.PrecompiledPreambleBytes.first = Preamble.size();
|
|
PreprocessorOpts.PrecompiledPreambleBytes.second
|
|
= PreambleEndsAtStartOfLine;
|
|
PreprocessorOpts.ImplicitPCHInclude = getPreambleFile(this);
|
|
PreprocessorOpts.DisablePCHValidation = true;
|
|
|
|
OwnedBuffers.push_back(OverrideMainBuffer);
|
|
} else {
|
|
PreprocessorOpts.PrecompiledPreambleBytes.first = 0;
|
|
PreprocessorOpts.PrecompiledPreambleBytes.second = false;
|
|
}
|
|
|
|
// Disable the preprocessing record if modules are not enabled.
|
|
if (!Clang->getLangOpts().Modules)
|
|
PreprocessorOpts.DetailedRecord = false;
|
|
|
|
OwningPtr<SyntaxOnlyAction> Act;
|
|
Act.reset(new SyntaxOnlyAction);
|
|
if (Act->BeginSourceFile(*Clang.get(), Clang->getFrontendOpts().Inputs[0])) {
|
|
Act->Execute();
|
|
Act->EndSourceFile();
|
|
}
|
|
}
|
|
|
|
bool ASTUnit::Save(StringRef File) {
|
|
// Write to a temporary file and later rename it to the actual file, to avoid
|
|
// possible race conditions.
|
|
SmallString<128> TempPath;
|
|
TempPath = File;
|
|
TempPath += "-%%%%%%%%";
|
|
int fd;
|
|
if (llvm::sys::fs::unique_file(TempPath.str(), fd, TempPath,
|
|
/*makeAbsolute=*/false))
|
|
return true;
|
|
|
|
// FIXME: Can we somehow regenerate the stat cache here, or do we need to
|
|
// unconditionally create a stat cache when we parse the file?
|
|
llvm::raw_fd_ostream Out(fd, /*shouldClose=*/true);
|
|
|
|
serialize(Out);
|
|
Out.close();
|
|
if (Out.has_error()) {
|
|
Out.clear_error();
|
|
return true;
|
|
}
|
|
|
|
if (llvm::sys::fs::rename(TempPath.str(), File)) {
|
|
bool exists;
|
|
llvm::sys::fs::remove(TempPath.str(), exists);
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
static bool serializeUnit(ASTWriter &Writer,
|
|
SmallVectorImpl<char> &Buffer,
|
|
Sema &S,
|
|
bool hasErrors,
|
|
raw_ostream &OS) {
|
|
Writer.WriteAST(S, std::string(), 0, "", hasErrors);
|
|
|
|
// Write the generated bitstream to "Out".
|
|
if (!Buffer.empty())
|
|
OS.write(Buffer.data(), Buffer.size());
|
|
|
|
return false;
|
|
}
|
|
|
|
bool ASTUnit::serialize(raw_ostream &OS) {
|
|
bool hasErrors = getDiagnostics().hasErrorOccurred();
|
|
|
|
if (WriterData)
|
|
return serializeUnit(WriterData->Writer, WriterData->Buffer,
|
|
getSema(), hasErrors, OS);
|
|
|
|
SmallString<128> Buffer;
|
|
llvm::BitstreamWriter Stream(Buffer);
|
|
ASTWriter Writer(Stream);
|
|
return serializeUnit(Writer, Buffer, getSema(), hasErrors, OS);
|
|
}
|
|
|
|
typedef ContinuousRangeMap<unsigned, int, 2> SLocRemap;
|
|
|
|
static void TranslateSLoc(SourceLocation &L, SLocRemap &Remap) {
|
|
unsigned Raw = L.getRawEncoding();
|
|
const unsigned MacroBit = 1U << 31;
|
|
L = SourceLocation::getFromRawEncoding((Raw & MacroBit) |
|
|
((Raw & ~MacroBit) + Remap.find(Raw & ~MacroBit)->second));
|
|
}
|
|
|
|
void ASTUnit::TranslateStoredDiagnostics(
|
|
ASTReader *MMan,
|
|
StringRef ModName,
|
|
SourceManager &SrcMgr,
|
|
const SmallVectorImpl<StoredDiagnostic> &Diags,
|
|
SmallVectorImpl<StoredDiagnostic> &Out) {
|
|
// The stored diagnostic has the old source manager in it; update
|
|
// the locations to refer into the new source manager. We also need to remap
|
|
// all the locations to the new view. This includes the diag location, any
|
|
// associated source ranges, and the source ranges of associated fix-its.
|
|
// FIXME: There should be a cleaner way to do this.
|
|
|
|
SmallVector<StoredDiagnostic, 4> Result;
|
|
Result.reserve(Diags.size());
|
|
assert(MMan && "Don't have a module manager");
|
|
serialization::ModuleFile *Mod = MMan->ModuleMgr.lookup(ModName);
|
|
assert(Mod && "Don't have preamble module");
|
|
SLocRemap &Remap = Mod->SLocRemap;
|
|
for (unsigned I = 0, N = Diags.size(); I != N; ++I) {
|
|
// Rebuild the StoredDiagnostic.
|
|
const StoredDiagnostic &SD = Diags[I];
|
|
SourceLocation L = SD.getLocation();
|
|
TranslateSLoc(L, Remap);
|
|
FullSourceLoc Loc(L, SrcMgr);
|
|
|
|
SmallVector<CharSourceRange, 4> Ranges;
|
|
Ranges.reserve(SD.range_size());
|
|
for (StoredDiagnostic::range_iterator I = SD.range_begin(),
|
|
E = SD.range_end();
|
|
I != E; ++I) {
|
|
SourceLocation BL = I->getBegin();
|
|
TranslateSLoc(BL, Remap);
|
|
SourceLocation EL = I->getEnd();
|
|
TranslateSLoc(EL, Remap);
|
|
Ranges.push_back(CharSourceRange(SourceRange(BL, EL), I->isTokenRange()));
|
|
}
|
|
|
|
SmallVector<FixItHint, 2> FixIts;
|
|
FixIts.reserve(SD.fixit_size());
|
|
for (StoredDiagnostic::fixit_iterator I = SD.fixit_begin(),
|
|
E = SD.fixit_end();
|
|
I != E; ++I) {
|
|
FixIts.push_back(FixItHint());
|
|
FixItHint &FH = FixIts.back();
|
|
FH.CodeToInsert = I->CodeToInsert;
|
|
SourceLocation BL = I->RemoveRange.getBegin();
|
|
TranslateSLoc(BL, Remap);
|
|
SourceLocation EL = I->RemoveRange.getEnd();
|
|
TranslateSLoc(EL, Remap);
|
|
FH.RemoveRange = CharSourceRange(SourceRange(BL, EL),
|
|
I->RemoveRange.isTokenRange());
|
|
}
|
|
|
|
Result.push_back(StoredDiagnostic(SD.getLevel(), SD.getID(),
|
|
SD.getMessage(), Loc, Ranges, FixIts));
|
|
}
|
|
Result.swap(Out);
|
|
}
|
|
|
|
static inline bool compLocDecl(std::pair<unsigned, Decl *> L,
|
|
std::pair<unsigned, Decl *> R) {
|
|
return L.first < R.first;
|
|
}
|
|
|
|
void ASTUnit::addFileLevelDecl(Decl *D) {
|
|
assert(D);
|
|
|
|
// We only care about local declarations.
|
|
if (D->isFromASTFile())
|
|
return;
|
|
|
|
SourceManager &SM = *SourceMgr;
|
|
SourceLocation Loc = D->getLocation();
|
|
if (Loc.isInvalid() || !SM.isLocalSourceLocation(Loc))
|
|
return;
|
|
|
|
// We only keep track of the file-level declarations of each file.
|
|
if (!D->getLexicalDeclContext()->isFileContext())
|
|
return;
|
|
|
|
SourceLocation FileLoc = SM.getFileLoc(Loc);
|
|
assert(SM.isLocalSourceLocation(FileLoc));
|
|
FileID FID;
|
|
unsigned Offset;
|
|
llvm::tie(FID, Offset) = SM.getDecomposedLoc(FileLoc);
|
|
if (FID.isInvalid())
|
|
return;
|
|
|
|
LocDeclsTy *&Decls = FileDecls[FID];
|
|
if (!Decls)
|
|
Decls = new LocDeclsTy();
|
|
|
|
std::pair<unsigned, Decl *> LocDecl(Offset, D);
|
|
|
|
if (Decls->empty() || Decls->back().first <= Offset) {
|
|
Decls->push_back(LocDecl);
|
|
return;
|
|
}
|
|
|
|
LocDeclsTy::iterator
|
|
I = std::upper_bound(Decls->begin(), Decls->end(), LocDecl, compLocDecl);
|
|
|
|
Decls->insert(I, LocDecl);
|
|
}
|
|
|
|
void ASTUnit::findFileRegionDecls(FileID File, unsigned Offset, unsigned Length,
|
|
SmallVectorImpl<Decl *> &Decls) {
|
|
if (File.isInvalid())
|
|
return;
|
|
|
|
if (SourceMgr->isLoadedFileID(File)) {
|
|
assert(Ctx->getExternalSource() && "No external source!");
|
|
return Ctx->getExternalSource()->FindFileRegionDecls(File, Offset, Length,
|
|
Decls);
|
|
}
|
|
|
|
FileDeclsTy::iterator I = FileDecls.find(File);
|
|
if (I == FileDecls.end())
|
|
return;
|
|
|
|
LocDeclsTy &LocDecls = *I->second;
|
|
if (LocDecls.empty())
|
|
return;
|
|
|
|
LocDeclsTy::iterator
|
|
BeginIt = std::lower_bound(LocDecls.begin(), LocDecls.end(),
|
|
std::make_pair(Offset, (Decl*)0), compLocDecl);
|
|
if (BeginIt != LocDecls.begin())
|
|
--BeginIt;
|
|
|
|
// If we are pointing at a top-level decl inside an objc container, we need
|
|
// to backtrack until we find it otherwise we will fail to report that the
|
|
// region overlaps with an objc container.
|
|
while (BeginIt != LocDecls.begin() &&
|
|
BeginIt->second->isTopLevelDeclInObjCContainer())
|
|
--BeginIt;
|
|
|
|
LocDeclsTy::iterator
|
|
EndIt = std::upper_bound(LocDecls.begin(), LocDecls.end(),
|
|
std::make_pair(Offset+Length, (Decl*)0),
|
|
compLocDecl);
|
|
if (EndIt != LocDecls.end())
|
|
++EndIt;
|
|
|
|
for (LocDeclsTy::iterator DIt = BeginIt; DIt != EndIt; ++DIt)
|
|
Decls.push_back(DIt->second);
|
|
}
|
|
|
|
SourceLocation ASTUnit::getLocation(const FileEntry *File,
|
|
unsigned Line, unsigned Col) const {
|
|
const SourceManager &SM = getSourceManager();
|
|
SourceLocation Loc = SM.translateFileLineCol(File, Line, Col);
|
|
return SM.getMacroArgExpandedLocation(Loc);
|
|
}
|
|
|
|
SourceLocation ASTUnit::getLocation(const FileEntry *File,
|
|
unsigned Offset) const {
|
|
const SourceManager &SM = getSourceManager();
|
|
SourceLocation FileLoc = SM.translateFileLineCol(File, 1, 1);
|
|
return SM.getMacroArgExpandedLocation(FileLoc.getLocWithOffset(Offset));
|
|
}
|
|
|
|
/// \brief If \arg Loc is a loaded location from the preamble, returns
|
|
/// the corresponding local location of the main file, otherwise it returns
|
|
/// \arg Loc.
|
|
SourceLocation ASTUnit::mapLocationFromPreamble(SourceLocation Loc) {
|
|
FileID PreambleID;
|
|
if (SourceMgr)
|
|
PreambleID = SourceMgr->getPreambleFileID();
|
|
|
|
if (Loc.isInvalid() || Preamble.empty() || PreambleID.isInvalid())
|
|
return Loc;
|
|
|
|
unsigned Offs;
|
|
if (SourceMgr->isInFileID(Loc, PreambleID, &Offs) && Offs < Preamble.size()) {
|
|
SourceLocation FileLoc
|
|
= SourceMgr->getLocForStartOfFile(SourceMgr->getMainFileID());
|
|
return FileLoc.getLocWithOffset(Offs);
|
|
}
|
|
|
|
return Loc;
|
|
}
|
|
|
|
/// \brief If \arg Loc is a local location of the main file but inside the
|
|
/// preamble chunk, returns the corresponding loaded location from the
|
|
/// preamble, otherwise it returns \arg Loc.
|
|
SourceLocation ASTUnit::mapLocationToPreamble(SourceLocation Loc) {
|
|
FileID PreambleID;
|
|
if (SourceMgr)
|
|
PreambleID = SourceMgr->getPreambleFileID();
|
|
|
|
if (Loc.isInvalid() || Preamble.empty() || PreambleID.isInvalid())
|
|
return Loc;
|
|
|
|
unsigned Offs;
|
|
if (SourceMgr->isInFileID(Loc, SourceMgr->getMainFileID(), &Offs) &&
|
|
Offs < Preamble.size()) {
|
|
SourceLocation FileLoc = SourceMgr->getLocForStartOfFile(PreambleID);
|
|
return FileLoc.getLocWithOffset(Offs);
|
|
}
|
|
|
|
return Loc;
|
|
}
|
|
|
|
bool ASTUnit::isInPreambleFileID(SourceLocation Loc) {
|
|
FileID FID;
|
|
if (SourceMgr)
|
|
FID = SourceMgr->getPreambleFileID();
|
|
|
|
if (Loc.isInvalid() || FID.isInvalid())
|
|
return false;
|
|
|
|
return SourceMgr->isInFileID(Loc, FID);
|
|
}
|
|
|
|
bool ASTUnit::isInMainFileID(SourceLocation Loc) {
|
|
FileID FID;
|
|
if (SourceMgr)
|
|
FID = SourceMgr->getMainFileID();
|
|
|
|
if (Loc.isInvalid() || FID.isInvalid())
|
|
return false;
|
|
|
|
return SourceMgr->isInFileID(Loc, FID);
|
|
}
|
|
|
|
SourceLocation ASTUnit::getEndOfPreambleFileID() {
|
|
FileID FID;
|
|
if (SourceMgr)
|
|
FID = SourceMgr->getPreambleFileID();
|
|
|
|
if (FID.isInvalid())
|
|
return SourceLocation();
|
|
|
|
return SourceMgr->getLocForEndOfFile(FID);
|
|
}
|
|
|
|
SourceLocation ASTUnit::getStartOfMainFileID() {
|
|
FileID FID;
|
|
if (SourceMgr)
|
|
FID = SourceMgr->getMainFileID();
|
|
|
|
if (FID.isInvalid())
|
|
return SourceLocation();
|
|
|
|
return SourceMgr->getLocForStartOfFile(FID);
|
|
}
|
|
|
|
std::pair<PreprocessingRecord::iterator, PreprocessingRecord::iterator>
|
|
ASTUnit::getLocalPreprocessingEntities() const {
|
|
if (isMainFileAST()) {
|
|
serialization::ModuleFile &
|
|
Mod = Reader->getModuleManager().getPrimaryModule();
|
|
return Reader->getModulePreprocessedEntities(Mod);
|
|
}
|
|
|
|
if (PreprocessingRecord *PPRec = PP->getPreprocessingRecord())
|
|
return std::make_pair(PPRec->local_begin(), PPRec->local_end());
|
|
|
|
return std::make_pair(PreprocessingRecord::iterator(),
|
|
PreprocessingRecord::iterator());
|
|
}
|
|
|
|
bool ASTUnit::visitLocalTopLevelDecls(void *context, DeclVisitorFn Fn) {
|
|
if (isMainFileAST()) {
|
|
serialization::ModuleFile &
|
|
Mod = Reader->getModuleManager().getPrimaryModule();
|
|
ASTReader::ModuleDeclIterator MDI, MDE;
|
|
llvm::tie(MDI, MDE) = Reader->getModuleFileLevelDecls(Mod);
|
|
for (; MDI != MDE; ++MDI) {
|
|
if (!Fn(context, *MDI))
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
for (ASTUnit::top_level_iterator TL = top_level_begin(),
|
|
TLEnd = top_level_end();
|
|
TL != TLEnd; ++TL) {
|
|
if (!Fn(context, *TL))
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
namespace {
|
|
struct PCHLocatorInfo {
|
|
serialization::ModuleFile *Mod;
|
|
PCHLocatorInfo() : Mod(0) {}
|
|
};
|
|
}
|
|
|
|
static bool PCHLocator(serialization::ModuleFile &M, void *UserData) {
|
|
PCHLocatorInfo &Info = *static_cast<PCHLocatorInfo*>(UserData);
|
|
switch (M.Kind) {
|
|
case serialization::MK_Module:
|
|
return true; // skip dependencies.
|
|
case serialization::MK_PCH:
|
|
Info.Mod = &M;
|
|
return true; // found it.
|
|
case serialization::MK_Preamble:
|
|
return false; // look in dependencies.
|
|
case serialization::MK_MainFile:
|
|
return false; // look in dependencies.
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
const FileEntry *ASTUnit::getPCHFile() {
|
|
if (!Reader)
|
|
return 0;
|
|
|
|
PCHLocatorInfo Info;
|
|
Reader->getModuleManager().visit(PCHLocator, &Info);
|
|
if (Info.Mod)
|
|
return Info.Mod->File;
|
|
|
|
return 0;
|
|
}
|
|
|
|
bool ASTUnit::isModuleFile() {
|
|
return isMainFileAST() && !ASTFileLangOpts.CurrentModule.empty();
|
|
}
|
|
|
|
void ASTUnit::PreambleData::countLines() const {
|
|
NumLines = 0;
|
|
if (empty())
|
|
return;
|
|
|
|
for (std::vector<char>::const_iterator
|
|
I = Buffer.begin(), E = Buffer.end(); I != E; ++I) {
|
|
if (*I == '\n')
|
|
++NumLines;
|
|
}
|
|
if (Buffer.back() != '\n')
|
|
++NumLines;
|
|
}
|
|
|
|
#ifndef NDEBUG
|
|
ASTUnit::ConcurrencyState::ConcurrencyState() {
|
|
Mutex = new llvm::sys::MutexImpl(/*recursive=*/true);
|
|
}
|
|
|
|
ASTUnit::ConcurrencyState::~ConcurrencyState() {
|
|
delete static_cast<llvm::sys::MutexImpl *>(Mutex);
|
|
}
|
|
|
|
void ASTUnit::ConcurrencyState::start() {
|
|
bool acquired = static_cast<llvm::sys::MutexImpl *>(Mutex)->tryacquire();
|
|
assert(acquired && "Concurrent access to ASTUnit!");
|
|
}
|
|
|
|
void ASTUnit::ConcurrencyState::finish() {
|
|
static_cast<llvm::sys::MutexImpl *>(Mutex)->release();
|
|
}
|
|
|
|
#else // NDEBUG
|
|
|
|
ASTUnit::ConcurrencyState::ConcurrencyState() {}
|
|
ASTUnit::ConcurrencyState::~ConcurrencyState() {}
|
|
void ASTUnit::ConcurrencyState::start() {}
|
|
void ASTUnit::ConcurrencyState::finish() {}
|
|
|
|
#endif
|