slang.h revision cc0efad052e944f64bb71cfdaa8a825e30192e78
1#ifndef _SLANG_COMPILER_SLANG_H 2#define _SLANG_COMPILER_SLANG_H 3 4#include <cstdio> 5#include <string> 6#include <vector> 7 8#include "llvm/ADT/OwningPtr.h" 9#include "llvm/ADT/StringRef.h" 10#include "llvm/ADT/IntrusiveRefCntPtr.h" 11 12#include "clang/Basic/TargetOptions.h" 13 14#include "slang_pragma_recorder.h" 15#include "slang_diagnostic_buffer.h" 16 17namespace llvm { 18 class raw_ostream; 19} 20 21namespace clang { 22 class Diagnostic; 23 class FileManager; 24 class SourceManager; 25 class LangOptions; 26 class Preprocessor; 27 class TargetOptions; 28 class CodeGenOptions; 29 class ASTContext; 30 class ASTConsumer; 31 class Backend; 32 class TargetInfo; 33} 34 35namespace slang { 36 37class Slang { 38 static clang::LangOptions LangOpts; 39 static clang::CodeGenOptions CodeGenOpts; 40 41 static bool GlobalInitialized; 42 43 static void GlobalInitialization(); 44 45 static void LLVMErrorHandler(void *UserData, const std::string &Message); 46 47 public: 48 typedef enum { 49 OT_Dependency, 50 OT_Assembly, 51 OT_LLVMAssembly, 52 OT_Bitcode, 53 OT_Nothing, 54 OT_Object, 55 56 OT_Default = OT_Bitcode 57 } OutputType; 58 59 private: 60 // The diagnostics engine instance (for status reporting during compilation) 61 llvm::IntrusiveRefCntPtr<clang::Diagnostic> mDiagnostics; 62 // The clients of diagnostics engine. The ownership is taken by the 63 // mDiagnostics after creation. 64 DiagnosticBuffer *mDiagClient; 65 void createDiagnostic(); 66 67 // The target being compiled for 68 clang::TargetOptions mTargetOpts; 69 llvm::OwningPtr<clang::TargetInfo> mTarget; 70 void createTarget(const char *Triple, const char *CPU, const char **Features); 71 72 // Below is for parsing and code generation 73 74 // The file manager (for prepocessor doing the job such as header file search) 75 llvm::OwningPtr<clang::FileManager> mFileMgr; 76 void createFileManager(); 77 78 // The source manager (responsible for the source code handling) 79 llvm::OwningPtr<clang::SourceManager> mSourceMgr; 80 void createSourceManager(); 81 82 // The preprocessor (source code preprocessor) 83 llvm::OwningPtr<clang::Preprocessor> mPP; 84 void createPreprocessor(); 85 86 // The AST context (the context to hold long-lived AST nodes) 87 llvm::OwningPtr<clang::ASTContext> mASTContext; 88 void createASTContext(); 89 90 // The AST consumer, responsible for code generation 91 llvm::OwningPtr<clang::ASTConsumer> mBackend; 92 93 // Input file name 94 std::string mInputFileName; 95 std::string mOutputFileName; 96 std::string mDepTargetBCFileName; 97 98 OutputType mOT; 99 100 // Output stream 101 llvm::OwningPtr<llvm::raw_ostream> mOS; 102 103 std::vector<std::string> mIncludePaths; 104 105 protected: 106 PragmaList mPragmas; 107 108 inline clang::Diagnostic &getDiagnostics() { return *mDiagnostics; } 109 inline const clang::TargetInfo &getTargetInfo() const { return *mTarget; } 110 inline clang::FileManager &getFileManager() { return *mFileMgr; } 111 inline clang::SourceManager &getSourceManager() { return *mSourceMgr; } 112 inline clang::Preprocessor &getPreprocessor() { return *mPP; } 113 inline clang::ASTContext &getASTContext() { return *mASTContext; } 114 115 inline const clang::TargetOptions &getTargetOptions() const 116 { return mTargetOpts; } 117 118 virtual void initDiagnostic() {} 119 virtual void initPreprocessor() {} 120 virtual void initASTContext() {} 121 122 virtual clang::ASTConsumer 123 *createBackend(const clang::CodeGenOptions& CodeGenOpts, 124 llvm::raw_ostream *OS, 125 OutputType OT); 126 127 public: 128 static const std::string TargetDescription; 129 130 static const llvm::StringRef PragmaMetadataName; 131 132 Slang(const char *Triple, const char *CPU, const char **Features); 133 134 bool setInputSource(llvm::StringRef InputFile, const char *Text, 135 size_t TextLength); 136 137 bool setInputSource(llvm::StringRef InputFile); 138 139 inline const std::string &getInputFileName() const { return mInputFileName; } 140 141 inline void addIncludePath(const char *Path) { 142 mIncludePaths.push_back(Path); 143 } 144 145 inline void setOutputType(OutputType OT) { mOT = OT; } 146 147 bool setOutput(const char *outputFile); 148 inline const std::string &getOutputFileName() const { 149 return mOutputFileName; 150 } 151 152 bool setDepTargetBC(const char *targetBCFile); 153 154 int generateDepFile(); 155 int compile(); 156 157 inline const char *getErrorMessage() { return mDiagClient->str().c_str(); } 158 159 // Reset the slang compiler state such that it can be reused to compile 160 // another file 161 virtual void reset(); 162 163 virtual ~Slang(); 164}; 165} 166 167#endif // _SLANG_COMPILER_SLANG_H 168