fe66aebd75
- define a common data structure Language which is a compiled result of the bnf grammar. It is defined in Language.h; - creates a clangPseudoCLI lib which defines a grammar commandline flag and expose a function to get the Language. It supports --grammar=cxx, --grammmar=/path/to/file.bnf; - use the clangPseudoCLI in clang-pseudo, fuzzer, and benchmark tools ( simplify the code and use the prebuilt cxx grammar); Split out from https://reviews.llvm.org/D127448. Differential Revision: https://reviews.llvm.org/D128679
36 lines
1.2 KiB
C++
36 lines
1.2 KiB
C++
//===--- CLI.h - Get grammar from variant sources ----------------*- 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
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// Provides the Grammar, LRTable etc for a language specified by the `--grammar`
|
|
// flags. It is by design to be used by pseudoparser-based CLI tools.
|
|
//
|
|
// The CLI library defines a `--grammar` CLI flag, which supports 1) using a
|
|
// grammar from a file (--grammar=/path/to/lang.bnf) or using the prebuilt cxx
|
|
// language (--grammar=cxx).
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef CLANG_PSEUDO_CLI_CLI_H
|
|
#define CLANG_PSEUDO_CLI_CLI_H
|
|
|
|
#include "clang-pseudo/Language.h"
|
|
|
|
namespace clang {
|
|
namespace pseudo {
|
|
|
|
// Returns the corresponding Language from the '--grammar' command-line flag.
|
|
//
|
|
// !! If the grammar flag is invalid (e.g. unexisting file), this function will
|
|
// exit the program immediately.
|
|
const Language &getLanguageFromFlags();
|
|
|
|
} // namespace pseudo
|
|
} // namespace clang
|
|
|
|
#endif // CLANG_PSEUDO_CLI_CLI_H
|