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a21a8607e4
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62354 91177308-0d34-0410-b5e6-96231b3b80d8
102 lines
3.7 KiB
C++
102 lines
3.7 KiB
C++
//===-- llvm/Assembly/Parser.h - Parser for VM assembly files ---*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// These classes are implemented by the lib/AsmParser library.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_ASSEMBLY_PARSER_H
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#define LLVM_ASSEMBLY_PARSER_H
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#include <string>
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namespace llvm {
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class Module;
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class ParseError;
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class raw_ostream;
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/// This function is the main interface to the LLVM Assembly Parser. It parses
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/// an ASCII file that (presumably) contains LLVM Assembly code. It returns a
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/// Module (intermediate representation) with the corresponding features. Note
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/// that this does not verify that the generated Module is valid, so you should
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/// run the verifier after parsing the file to check that it is okay.
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/// @brief Parse LLVM Assembly from a file
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Module *ParseAssemblyFile(
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const std::string &Filename, ///< The name of the file to parse
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ParseError &Error ///< If not null, an object to return errors in.
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);
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/// The function is a secondary interface to the LLVM Assembly Parser. It parses
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/// an ASCII string that (presumably) contains LLVM Assembly code. It returns a
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/// Module (intermediate representation) with the corresponding features. Note
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/// that this does not verify that the generated Module is valid, so you should
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/// run the verifier after parsing the file to check that it is okay.
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/// @brief Parse LLVM Assembly from a string
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Module *ParseAssemblyString(
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const char *AsmString, ///< The string containing assembly
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Module *M, ///< A module to add the assembly too.
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ParseError &Error ///< If not null, an object to return errors in.
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);
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//===------------------------------------------------------------------------===
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// Helper Classes
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//===------------------------------------------------------------------------===
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/// An instance of this class can be passed to ParseAssemblyFile or
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/// ParseAssemblyString functions in order to capture error information from
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/// the parser. It provides a standard way to print out the error message
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/// including the file name and line number where the error occurred.
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/// @brief An LLVM Assembly Parsing Error Object
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class ParseError {
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public:
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ParseError() : Filename("unknown"), Message("none"), LineNo(0), ColumnNo(0) {}
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ParseError(const ParseError &E);
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void setFilename(const std::string &F) { Filename = F; }
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inline const std::string &getRawMessage() const { // Just the raw message.
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return Message;
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}
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inline const std::string &getFilename() const {
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return Filename;
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}
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void setError(const std::string &message, int lineNo = -1, int ColNo = -1,
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const std::string &FileContents = "") {
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Message = message;
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LineNo = lineNo; ColumnNo = ColNo;
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LineContents = FileContents;
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}
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// getErrorLocation - Return the line and column number of the error in the
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// input source file. The source filename can be derived from the
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// ParserOptions in effect. If positional information is not applicable,
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// these will return a value of -1.
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//
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inline void getErrorLocation(int &Line, int &Column) const {
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Line = LineNo; Column = ColumnNo;
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}
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void PrintError(const char *ProgName, raw_ostream &S);
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private :
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std::string Filename;
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std::string Message;
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int LineNo, ColumnNo; // -1 if not relevant
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std::string LineContents;
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void operator=(const ParseError &E); // DO NOT IMPLEMENT
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};
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} // End llvm namespace
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#endif
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