llvm/utils/TableGen/ClangASTNodesEmitter.h
2010-12-13 00:23:57 +00:00

85 lines
2.3 KiB
C++

//===- ClangASTNodesEmitter.h - Generate Clang AST node tables -*- C++ -*--===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// These tablegen backends emit Clang AST node tables
//
//===----------------------------------------------------------------------===//
#ifndef CLANGAST_EMITTER_H
#define CLANGAST_EMITTER_H
#include "TableGenBackend.h"
#include "Record.h"
#include <string>
#include <cctype>
#include <map>
namespace llvm {
/// ClangASTNodesEmitter - The top-level class emits .inc files containing
/// declarations of Clang statements.
///
class ClangASTNodesEmitter : public TableGenBackend {
// A map from a node to each of its derived nodes.
typedef std::multimap<Record*, Record*> ChildMap;
typedef ChildMap::const_iterator ChildIterator;
RecordKeeper &Records;
Record Root;
const std::string &BaseSuffix;
// Create a macro-ized version of a name
static std::string macroName(std::string S) {
for (unsigned i = 0; i < S.size(); ++i)
S[i] = std::toupper(S[i]);
return S;
}
// Return the name to be printed in the base field. Normally this is
// the record's name plus the base suffix, but if it is the root node and
// the suffix is non-empty, it's just the suffix.
std::string baseName(Record &R) {
if (&R == &Root && !BaseSuffix.empty())
return BaseSuffix;
return R.getName() + BaseSuffix;
}
std::pair<Record *, Record *> EmitNode (const ChildMap &Tree, raw_ostream& OS,
Record *Base);
public:
explicit ClangASTNodesEmitter(RecordKeeper &R, const std::string &N,
const std::string &S)
: Records(R), Root(N, SMLoc(), R), BaseSuffix(S)
{}
// run - Output the .inc file contents
void run(raw_ostream &OS);
};
/// ClangDeclContextEmitter - Emits an addendum to a .inc file to enumerate the
/// clang declaration contexts.
///
class ClangDeclContextEmitter : public TableGenBackend {
RecordKeeper &Records;
public:
explicit ClangDeclContextEmitter(RecordKeeper &R)
: Records(R)
{}
// run - Output the .inc file contents
void run(raw_ostream &OS);
};
} // End llvm namespace
#endif