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//===--- FrontendActions.cpp ----------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "clang/Rewrite/FrontendActions.h"
#include "clang/AST/ASTConsumer.h"
#include "clang/Lex/Preprocessor.h"
#include "clang/Parse/Parser.h"
#include "clang/Basic/FileManager.h"
#include "clang/Frontend/FrontendActions.h"
#include "clang/Frontend/CompilerInstance.h"
#include "clang/Frontend/FrontendDiagnostic.h"
#include "clang/Frontend/Utils.h"
#include "clang/Rewrite/ASTConsumers.h"
#include "clang/Rewrite/FixItRewriter.h"
#include "clang/Rewrite/Rewriters.h"
#include "llvm/ADT/OwningPtr.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Support/Path.h"
#include "llvm/Support/FileSystem.h"
using namespace clang;
//===----------------------------------------------------------------------===//
// AST Consumer Actions
//===----------------------------------------------------------------------===//
ASTConsumer *HTMLPrintAction::CreateASTConsumer(CompilerInstance &CI,
StringRef InFile) {
if (raw_ostream *OS = CI.createDefaultOutputFile(false, InFile))
return CreateHTMLPrinter(OS, CI.getPreprocessor());
return 0;
}
FixItAction::FixItAction() {}
FixItAction::~FixItAction() {}
ASTConsumer *FixItAction::CreateASTConsumer(CompilerInstance &CI,
StringRef InFile) {
return new ASTConsumer();
}
namespace {
class FixItRewriteInPlace : public FixItOptions {
public:
std::string RewriteFilename(const std::string &Filename, int &fd) {
fd = -1;
return Filename;
}
};
class FixItActionSuffixInserter : public FixItOptions {
std::string NewSuffix;
public:
FixItActionSuffixInserter(std::string NewSuffix, bool FixWhatYouCan)
: NewSuffix(NewSuffix) {
this->FixWhatYouCan = FixWhatYouCan;
}
std::string RewriteFilename(const std::string &Filename, int &fd) {
fd = -1;
SmallString<128> Path(Filename);
llvm::sys::path::replace_extension(Path,
NewSuffix + llvm::sys::path::extension(Path));
return Path.str();
}
};
class FixItRewriteToTemp : public FixItOptions {
public:
std::string RewriteFilename(const std::string &Filename, int &fd) {
SmallString<128> Path;
Path = llvm::sys::path::filename(Filename);
Path += "-%%%%%%%%";
Path += llvm::sys::path::extension(Filename);
SmallString<128> NewPath;
llvm::sys::fs::unique_file(Path.str(), fd, NewPath);
return NewPath.str();
}
};
} // end anonymous namespace
bool FixItAction::BeginSourceFileAction(CompilerInstance &CI,
StringRef Filename) {
const FrontendOptions &FEOpts = getCompilerInstance().getFrontendOpts();
if (!FEOpts.FixItSuffix.empty()) {
FixItOpts.reset(new FixItActionSuffixInserter(FEOpts.FixItSuffix,
FEOpts.FixWhatYouCan));
} else {
FixItOpts.reset(new FixItRewriteInPlace);
FixItOpts->FixWhatYouCan = FEOpts.FixWhatYouCan;
}
Rewriter.reset(new FixItRewriter(CI.getDiagnostics(), CI.getSourceManager(),
CI.getLangOpts(), FixItOpts.get()));
return true;
}
void FixItAction::EndSourceFileAction() {
// Otherwise rewrite all files.
Rewriter->WriteFixedFiles();
}
bool FixItRecompile::BeginInvocation(CompilerInstance &CI) {
std::vector<std::pair<std::string, std::string> > RewrittenFiles;
bool err = false;
{
const FrontendOptions &FEOpts = CI.getFrontendOpts();
OwningPtr<FrontendAction> FixAction(new SyntaxOnlyAction());
if (FixAction->BeginSourceFile(CI, FEOpts.Inputs[0])) {
OwningPtr<FixItOptions> FixItOpts;
if (FEOpts.FixToTemporaries)
FixItOpts.reset(new FixItRewriteToTemp());
else
FixItOpts.reset(new FixItRewriteInPlace());
FixItOpts->Silent = true;
FixItOpts->FixWhatYouCan = FEOpts.FixWhatYouCan;
FixItOpts->FixOnlyWarnings = FEOpts.FixOnlyWarnings;
FixItRewriter Rewriter(CI.getDiagnostics(), CI.getSourceManager(),
CI.getLangOpts(), FixItOpts.get());
FixAction->Execute();
err = Rewriter.WriteFixedFiles(&RewrittenFiles);
FixAction->EndSourceFile();
CI.setSourceManager(0);
CI.setFileManager(0);
} else {
err = true;
}
}
if (err)
return false;
CI.getDiagnosticClient().clear();
CI.getDiagnostics().Reset();
PreprocessorOptions &PPOpts = CI.getPreprocessorOpts();
PPOpts.RemappedFiles.insert(PPOpts.RemappedFiles.end(),
RewrittenFiles.begin(), RewrittenFiles.end());
PPOpts.RemappedFilesKeepOriginalName = false;
return true;
}
//===----------------------------------------------------------------------===//
// Preprocessor Actions
//===----------------------------------------------------------------------===//
ASTConsumer *RewriteObjCAction::CreateASTConsumer(CompilerInstance &CI,
StringRef InFile) {
if (raw_ostream *OS = CI.createDefaultOutputFile(false, InFile, "cpp")) {
if (CI.getLangOpts().ObjCRuntime.isNonFragile())
return CreateModernObjCRewriter(InFile, OS,
CI.getDiagnostics(), CI.getLangOpts(),
CI.getDiagnosticOpts().NoRewriteMacros);
return CreateObjCRewriter(InFile, OS,
CI.getDiagnostics(), CI.getLangOpts(),
CI.getDiagnosticOpts().NoRewriteMacros);
}
return 0;
}
void RewriteMacrosAction::ExecuteAction() {
CompilerInstance &CI = getCompilerInstance();
raw_ostream *OS = CI.createDefaultOutputFile(true, getCurrentFile());
if (!OS) return;
RewriteMacrosInInput(CI.getPreprocessor(), OS);
}
void RewriteTestAction::ExecuteAction() {
CompilerInstance &CI = getCompilerInstance();
raw_ostream *OS = CI.createDefaultOutputFile(false, getCurrentFile());
if (!OS) return;
DoRewriteTest(CI.getPreprocessor(), OS);
}
void RewriteIncludesAction::ExecuteAction() {
CompilerInstance &CI = getCompilerInstance();
raw_ostream *OS = CI.createDefaultOutputFile(true, getCurrentFile());
if (!OS) return;
RewriteIncludesInInput(CI.getPreprocessor(), OS,
CI.getPreprocessorOutputOpts());
}
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