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//===-- llvm/Assembly/Parser.h - Parser for VM assembly files ---*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file was developed by the LLVM research group and is distributed under
// the University of Illinois Open Source License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// These classes are implemented by the lib/AsmParser library.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_ASSEMBLY_PARSER_H
#define LLVM_ASSEMBLY_PARSER_H
#include <string>
namespace llvm {
class Module;
class ParseError;
/// This function is the main interface to the LLVM Assembly Parse. It parses
/// an ascii file that (presumably) contains LLVM Assembly code. It returns a
/// Module (intermediate representation) with the corresponding features. Note
/// that this does not verify that the generated Module is valid, so you should
/// run the verifier after parsing the file to check that it is okay.
/// @brief Parse LLVM Assembly from a file
Module *ParseAssemblyFile(
const std::string &Filename, ///< The name of the file to parse
ParseError* Error = 0 ///< If not null, an object to return errors in.
);
/// The function is a secondary interface to the LLVM Assembly Parse. It parses
/// an ascii string that (presumably) contains LLVM Assembly code. It returns a
/// Module (intermediate representation) with the corresponding features. Note
/// that this does not verify that the generated Module is valid, so you should
/// run the verifier after parsing the file to check that it is okay.
/// @brief Parse LLVM Assembly from a string
Module *ParseAssemblyString(
const char * AsmString, ///< The string containing assembly
Module * M, ///< A module to add the assembly too.
ParseError* Error = 0 ///< If not null, an object to return errors in.
);
//===------------------------------------------------------------------------===
// Helper Classes
//===------------------------------------------------------------------------===
/// An instance of this class can be passed to ParseAssemblyFile or
/// ParseAssemblyString functions in order to capture error information from
/// the parser. It provides a standard way to print out the error message
/// including the file name and line number where the error occurred.
/// @brief An LLVM Assembly Parsing Error Object
class ParseError {
public:
ParseError() : Filename("unknown"), Message("none"), LineNo(0), ColumnNo(0) {}
ParseError(const ParseError &E);
// getMessage - Return the message passed in at construction time plus extra
// information extracted from the options used to parse with...
//
const std::string getMessage() const;
inline const std::string &getRawMessage() const { // Just the raw message...
return Message;
}
inline const std::string &getFilename() const {
return Filename;
}
void setError(const std::string &filename, const std::string &message,
int LineNo = -1, int ColNo = -1);
// getErrorLocation - Return the line and column number of the error in the
// input source file. The source filename can be derived from the
// ParserOptions in effect. If positional information is not applicable,
// these will return a value of -1.
//
inline const void getErrorLocation(int &Line, int &Column) const {
Line = LineNo; Column = ColumnNo;
}
private :
std::string Filename;
std::string Message;
int LineNo, ColumnNo; // -1 if not relevant
ParseError &operator=(const ParseError &E); // objects by reference
};
} // End llvm namespace
#endif
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