1 //===- ClangASTNodesEmitter.h - Generate Clang AST node tables -*- C++ -*--===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 // 10 // These tablegen backends emit Clang AST node tables 11 // 12 //===----------------------------------------------------------------------===// 13 14 #ifndef CLANGAST_EMITTER_H 15 #define CLANGAST_EMITTER_H 16 17 #include "llvm/TableGen/TableGenBackend.h" 18 #include "llvm/TableGen/Record.h" 19 #include <string> 20 #include <cctype> 21 #include <map> 22 23 namespace llvm { 24 25 /// ClangASTNodesEmitter - The top-level class emits .inc files containing 26 /// declarations of Clang statements. 27 /// 28 class ClangASTNodesEmitter : public TableGenBackend { 29 // A map from a node to each of its derived nodes. 30 typedef std::multimap<Record*, Record*> ChildMap; 31 typedef ChildMap::const_iterator ChildIterator; 32 33 RecordKeeper &Records; 34 Record Root; 35 const std::string &BaseSuffix; 36 37 // Create a macro-ized version of a name 38 static std::string macroName(std::string S) { 39 for (unsigned i = 0; i < S.size(); ++i) 40 S[i] = std::toupper(S[i]); 41 42 return S; 43 } 44 45 // Return the name to be printed in the base field. Normally this is 46 // the record's name plus the base suffix, but if it is the root node and 47 // the suffix is non-empty, it's just the suffix. 48 std::string baseName(Record &R) { 49 if (&R == &Root && !BaseSuffix.empty()) 50 return BaseSuffix; 51 52 return R.getName() + BaseSuffix; 53 } 54 55 std::pair<Record *, Record *> EmitNode (const ChildMap &Tree, raw_ostream& OS, 56 Record *Base); 57 public: 58 explicit ClangASTNodesEmitter(RecordKeeper &R, const std::string &N, 59 const std::string &S) 60 : Records(R), Root(N, SMLoc(), R), BaseSuffix(S) 61 {} 62 63 // run - Output the .inc file contents 64 void run(raw_ostream &OS); 65 }; 66 67 /// ClangDeclContextEmitter - Emits an addendum to a .inc file to enumerate the 68 /// clang declaration contexts. 69 /// 70 class ClangDeclContextEmitter : public TableGenBackend { 71 RecordKeeper &Records; 72 73 public: 74 explicit ClangDeclContextEmitter(RecordKeeper &R) 75 : Records(R) 76 {} 77 78 // run - Output the .inc file contents 79 void run(raw_ostream &OS); 80 }; 81 82 } // End llvm namespace 83 84 #endif 85
