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//===- ScriptLexer.h --------------------------------------------*- C++ -*-===//
//
// The LLVM Linker
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef LLD_ELF_SCRIPT_LEXER_H
#define LLD_ELF_SCRIPT_LEXER_H
#include "lld/Common/LLVM.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/Support/MemoryBuffer.h"
#include <utility>
#include <vector>
namespace lld {
namespace elf {
class ScriptLexer {
public:
explicit ScriptLexer(MemoryBufferRef MB);
void setError(const Twine &Msg);
void tokenize(MemoryBufferRef MB);
static StringRef skipSpace(StringRef S);
bool atEOF();
StringRef next();
StringRef peek();
void skip();
bool consume(StringRef Tok);
void expect(StringRef Expect);
bool consumeLabel(StringRef Tok);
std::string getCurrentLocation();
std::vector<MemoryBufferRef> MBs;
std::vector<StringRef> Tokens;
bool InExpr = false;
size_t Pos = 0;
private:
void maybeSplitExpr();
StringRef getLine();
size_t getLineNumber();
size_t getColumnNumber();
MemoryBufferRef getCurrentMB();
};
} // namespace elf
} // namespace lld
#endif
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