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//===-- llvm/Assembly/Parser.h - Parser for VM assembly files ---*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file 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;
class raw_ostream;
/// This function is the main interface to the LLVM Assembly Parser. 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 ///< If not null, an object to return errors in.
);
/// The function is a secondary interface to the LLVM Assembly Parser. 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 ///< 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);
void setFilename(const std::string &F) { Filename = F; }
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 &message, int lineNo = -1, int ColNo = -1,
const std::string &FileContents = "") {
Message = message;
LineNo = lineNo; ColumnNo = ColNo;
LineContents = FileContents;
}
// 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 void getErrorLocation(int &Line, int &Column) const {
Line = LineNo; Column = ColumnNo;
}
void PrintError(const char *ProgName, raw_ostream &S);
private :
std::string Filename;
std::string Message;
int LineNo, ColumnNo; // -1 if not relevant
std::string LineContents;
void operator=(const ParseError &E); // DO NOT IMPLEMENT
};
} // End llvm namespace
#endif
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