9ab67cc8bf
- Extend the GLR parser to allow conditional reduction based on the guard functions; - Implement two simple guards (contextual-override/final) for cxx.bnf; - layering: clangPseudoCXX depends on clangPseudo (as the guard function need to access the TokenStream); Differential Revision: https://reviews.llvm.org/D127448
55 lines
1.7 KiB
C++
55 lines
1.7 KiB
C++
//===--- CXX.h - Public interfaces for the C++ grammar -----------*- C++-*-===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file defines public interfaces for the C++ grammar
|
|
// (pseudo/lib/cxx/cxx.bnf). It provides a fast way to access core building
|
|
// pieces of the LR parser, e.g. Grammar, LRTable, rather than parsing the
|
|
// grammar file at the runtime.
|
|
//
|
|
// We do a compilation of the C++ BNF grammar at build time, and generate
|
|
// critical data sources. The implementation of the interfaces are based on the
|
|
// generated data sources.
|
|
//
|
|
// FIXME: not everything is fully compiled yet. The implementation of the
|
|
// interfaces are still parsing the grammar file at the runtime.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef CLANG_PSEUDO_CXX_CXX_H
|
|
#define CLANG_PSEUDO_CXX_CXX_H
|
|
|
|
#include "clang-pseudo/Language.h"
|
|
#include "clang-pseudo/grammar/Grammar.h"
|
|
|
|
namespace clang {
|
|
namespace pseudo {
|
|
namespace cxx {
|
|
// Symbol represents nonterminal symbols in the C++ grammar.
|
|
// It provides a simple uniform way to access a particular nonterminal.
|
|
enum class Symbol : SymbolID {
|
|
#define NONTERMINAL(X, Y) X = Y,
|
|
#include "CXXSymbols.inc"
|
|
#undef NONTERMINAL
|
|
};
|
|
|
|
enum class Extension : ExtensionID {
|
|
#define EXTENSION(X, Y) X = Y,
|
|
#include "CXXSymbols.inc"
|
|
#undef EXTENSION
|
|
};
|
|
|
|
// Returns the Language for the cxx.bnf grammar.
|
|
const Language &getLanguage();
|
|
|
|
} // namespace cxx
|
|
|
|
} // namespace pseudo
|
|
} // namespace clang
|
|
|
|
#endif // CLANG_PSEUDO_CXX_CXX_H
|