//===-- 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.
//
//===----------------------------------------------------------------------===//
#include <string>
+namespace llvm {
+
class Module;
-class ParseException;
+class ParseError;
-// The useful interface defined by this file... Parse an ascii file, and return
-// the internal representation in a nice slice'n'dice'able representation. Note
-// that this does not verify that the generated LLVM is valid, so you should run
-// the verifier after parsing the file to check that it's ok.
-//
-Module *ParseAssemblyFile(const std::string &Filename);// throw (ParseException)
+/// 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
//===------------------------------------------------------------------------===
-// ParseException - For when an exceptional event is generated by the parser.
-// This class lets you print out the exception message
-//
-struct ParseException {
- ParseException(const std::string &filename, const std::string &message,
- int LineNo = -1, int ColNo = -1);
-
- ParseException(const ParseException &E);
+/// 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
+ // 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;
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,
+ // 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 {
std::string Message;
int LineNo, ColumnNo; // -1 if not relevant
- ParseException &operator=(const ParseException &E); // objects by reference
+ ParseError &operator=(const ParseError &E); // objects by reference
};
+} // End llvm namespace
+
#endif