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/*
* Copyright 2010, The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "slang_rs.h"
#include <cstring>
#include <list>
#include <string>
#include <utility>
#include <vector>
#include "clang/Basic/SourceLocation.h"
#include "clang/Frontend/FrontendDiagnostic.h"
#include "clang/Sema/SemaDiagnostic.h"
#include "llvm/Support/Path.h"
#include "os_sep.h"
#include "slang_rs_backend.h"
#include "slang_rs_context.h"
#include "slang_rs_export_type.h"
namespace slang {
#define RS_HEADER_SUFFIX "rsh"
/* RS_HEADER_ENTRY(name, default_included) */
#define ENUM_RS_HEADER() \
RS_HEADER_ENTRY(rs_types, 1) \
RS_HEADER_ENTRY(rs_cl, 1) \
RS_HEADER_ENTRY(rs_core, 1) \
RS_HEADER_ENTRY(rs_math, 1) \
RS_HEADER_ENTRY(rs_time, 1) \
RS_HEADER_ENTRY(rs_graphics, 0)
bool SlangRS::reflectToJava(const std::string &OutputPathBase,
const std::string &OutputPackageName,
std::string *RealPackageName) {
return mRSContext->reflectToJava(OutputPathBase,
OutputPackageName,
getInputFileName(),
getOutputFileName(),
RealPackageName);
}
bool SlangRS::generateBitcodeAccessor(const std::string &OutputPathBase,
const std::string &PackageName) {
RSSlangReflectUtils::BitCodeAccessorContext BCAccessorContext;
BCAccessorContext.rsFileName = getInputFileName().c_str();
BCAccessorContext.bcFileName = getOutputFileName().c_str();
BCAccessorContext.reflectPath = OutputPathBase.c_str();
BCAccessorContext.packageName = PackageName.c_str();
BCAccessorContext.bcStorage = BCST_JAVA_CODE; // Must be BCST_JAVA_CODE
return RSSlangReflectUtils::GenerateBitCodeAccessor(BCAccessorContext);
}
bool SlangRS::checkODR(const char *CurInputFile) {
for (RSContext::ExportableList::iterator I = mRSContext->exportable_begin(),
E = mRSContext->exportable_end();
I != E;
I++) {
RSExportable *RSE = *I;
if (RSE->getKind() != RSExportable::EX_TYPE)
continue;
RSExportType *ET = static_cast<RSExportType *>(RSE);
if (ET->getClass() != RSExportType::ExportClassRecord)
continue;
RSExportRecordType *ERT = static_cast<RSExportRecordType *>(ET);
// Artificial record types (create by us not by user in the source) always
// conforms the ODR.
if (ERT->isArtificial())
continue;
// Key to lookup ERT in ReflectedDefinitions
llvm::StringRef RDKey(ERT->getName());
ReflectedDefinitionListTy::const_iterator RD =
ReflectedDefinitions.find(RDKey);
if (RD != ReflectedDefinitions.end()) {
const RSExportRecordType *Reflected = RD->getValue().first;
// There's a record (struct) with the same name reflected before. Enforce
// ODR checking - the Reflected must hold *exactly* the same "definition"
// as the one defined previously. We say two record types A and B have the
// same definition iff:
//
// struct A { struct B {
// Type(a1) a1, Type(b1) b1,
// Type(a2) a2, Type(b1) b2,
// ... ...
// Type(aN) aN Type(b3) b3,
// }; }
// Cond. #1. They have same number of fields, i.e., N = M;
// Cond. #2. for (i := 1 to N)
// Type(ai) = Type(bi) must hold;
// Cond. #3. for (i := 1 to N)
// Name(ai) = Name(bi) must hold;
//
// where,
// Type(F) = the type of field F and
// Name(F) = the field name.
bool PassODR = false;
// Cond. #1 and Cond. #2
if (Reflected->equals(ERT)) {
// Cond #3.
RSExportRecordType::const_field_iterator AI = Reflected->fields_begin(),
BI = ERT->fields_begin();
for (unsigned i = 0, e = Reflected->getFields().size(); i != e; i++) {
if ((*AI)->getName() != (*BI)->getName())
break;
AI++;
BI++;
}
PassODR = (AI == (Reflected->fields_end()));
}
if (!PassODR) {
getDiagnostics().Report(mDiagErrorODR) << Reflected->getName()
<< getInputFileName()
<< RD->getValue().second;
return false;
}
} else {
llvm::StringMapEntry<ReflectedDefinitionTy> *ME =
llvm::StringMapEntry<ReflectedDefinitionTy>::Create(RDKey.begin(),
RDKey.end());
ME->setValue(std::make_pair(ERT, CurInputFile));
if (!ReflectedDefinitions.insert(ME))
delete ME;
// Take the ownership of ERT such that it won't be freed in ~RSContext().
ERT->keep();
}
}
return true;
}
void SlangRS::initDiagnostic() {
clang::Diagnostic &Diag = getDiagnostics();
if (Diag.setDiagnosticGroupMapping("implicit-function-declaration",
clang::diag::MAP_ERROR))
Diag.Report(clang::diag::warn_unknown_warning_option)
<< "implicit-function-declaration";
Diag.setDiagnosticMapping(
clang::diag::ext_typecheck_convert_discards_qualifiers,
clang::diag::MAP_ERROR,
clang::SourceLocation());
mDiagErrorInvalidOutputDepParameter =
Diag.getCustomDiagID(clang::Diagnostic::Error,
"invalid parameter for output dependencies files.");
mDiagErrorODR =
Diag.getCustomDiagID(clang::Diagnostic::Error,
"type '%0' in different translation unit (%1 v.s. "
"%2) has incompatible type definition");
return;
}
void SlangRS::initPreprocessor() {
clang::Preprocessor &PP = getPreprocessor();
std::string RSH;
#define RS_HEADER_ENTRY(name, default_included) \
if (default_included) \
RSH.append("#include \"" #name "."RS_HEADER_SUFFIX "\"\n");
ENUM_RS_HEADER()
#undef RS_HEADER_ENTRY
PP.setPredefines(RSH);
return;
}
void SlangRS::initASTContext() {
mRSContext = new RSContext(getPreprocessor(),
getASTContext(),
getTargetInfo(),
&mPragmas,
&mGeneratedFileNames);
return;
}
clang::ASTConsumer
*SlangRS::createBackend(const clang::CodeGenOptions& CodeGenOpts,
llvm::raw_ostream *OS,
Slang::OutputType OT) {
return new RSBackend(mRSContext,
&getDiagnostics(),
CodeGenOpts,
getTargetOptions(),
&mPragmas,
OS,
OT,
getSourceManager(),
mAllowRSPrefix);
}
bool SlangRS::IsRSHeaderFile(const char *File) {
#define RS_HEADER_ENTRY(name, default_included) \
if (::strcmp(File, #name "."RS_HEADER_SUFFIX) == 0) \
return true;
ENUM_RS_HEADER()
#undef RS_HEADER_ENTRY
return false;
}
bool SlangRS::IsFunctionInRSHeaderFile(const clang::FunctionDecl *FD,
const clang::SourceManager &SourceMgr) {
clang::FullSourceLoc FSL(FD->getLocStart(), SourceMgr);
clang::PresumedLoc PLoc = SourceMgr.getPresumedLoc(FSL);
return IsRSHeaderFile(llvm::sys::path::filename(PLoc.getFilename()).data());
}
SlangRS::SlangRS() : Slang(), mRSContext(NULL), mAllowRSPrefix(false) {
return;
}
bool SlangRS::compile(
const std::list<std::pair<const char*, const char*> > &IOFiles,
const std::list<std::pair<const char*, const char*> > &DepFiles,
const std::vector<std::string> &IncludePaths,
const std::vector<std::string> &AdditionalDepTargets,
Slang::OutputType OutputType, BitCodeStorageType BitcodeStorage,
bool AllowRSPrefix, bool OutputDep,
const std::string &JavaReflectionPathBase,
const std::string &JavaReflectionPackageName) {
if (IOFiles.empty())
return true;
if (OutputDep && (DepFiles.size() != IOFiles.size())) {
getDiagnostics().Report(mDiagErrorInvalidOutputDepParameter);
return false;
}
std::string RealPackageName;
const char *InputFile, *OutputFile, *BCOutputFile, *DepOutputFile;
std::list<std::pair<const char*, const char*> >::const_iterator
IOFileIter = IOFiles.begin(), DepFileIter = DepFiles.begin();
setIncludePaths(IncludePaths);
setOutputType(OutputType);
if (OutputDep) {
setAdditionalDepTargets(AdditionalDepTargets);
}
mAllowRSPrefix = AllowRSPrefix;
for (unsigned i = 0, e = IOFiles.size(); i != e; i++) {
InputFile = IOFileIter->first;
OutputFile = IOFileIter->second;
reset();
if (!setInputSource(InputFile))
return false;
if (!setOutput(OutputFile))
return false;
if (Slang::compile() > 0)
return false;
if (OutputType != Slang::OT_Dependency) {
if (!reflectToJava(JavaReflectionPathBase,
JavaReflectionPackageName,
&RealPackageName))
return false;
for (std::vector<std::string>::const_iterator
I = mGeneratedFileNames.begin(), E = mGeneratedFileNames.end();
I != E;
I++) {
std::string ReflectedName = RSSlangReflectUtils::ComputePackagedPath(
JavaReflectionPathBase.c_str(),
(RealPackageName + OS_PATH_SEPARATOR_STR + *I).c_str());
appendGeneratedFileName(ReflectedName + ".java");
}
if ((OutputType == Slang::OT_Bitcode) &&
(BitcodeStorage == BCST_JAVA_CODE) &&
!generateBitcodeAccessor(JavaReflectionPathBase,
RealPackageName.c_str()))
return false;
}
if (OutputDep) {
BCOutputFile = DepFileIter->first;
DepOutputFile = DepFileIter->second;
setDepTargetBC(BCOutputFile);
if (!setDepOutput(DepOutputFile))
return false;
if (generateDepFile() > 0)
return false;
DepFileIter++;
}
if (!checkODR(InputFile))
return false;
IOFileIter++;
}
return true;
}
void SlangRS::reset() {
delete mRSContext;
mRSContext = NULL;
mGeneratedFileNames.clear();
Slang::reset();
return;
}
SlangRS::~SlangRS() {
delete mRSContext;
for (ReflectedDefinitionListTy::iterator I = ReflectedDefinitions.begin(),
E = ReflectedDefinitions.end();
I != E;
I++) {
delete I->getValue().first;
}
return;
}
} // namespace slang