llvm-project/llvm/lib/AsmParser/Parser.cpp

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//===- Parser.cpp - Main dispatch module for the Parser library -------------===
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
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//
// This library implements the functionality defined in llvm/assembly/parser.h
//
//===------------------------------------------------------------------------===
#include "ParserInternals.h"
#include "llvm/Module.h"
#include "llvm/Support/MemoryBuffer.h"
#include <cstring>
using namespace llvm;
ParseError* TheParseError = 0; /// FIXME: Not threading friendly
Module *llvm::ParseAssemblyFile(const std::string &Filename, ParseError* Err) {
std::string ErrorStr;
MemoryBuffer *F = MemoryBuffer::getFileOrSTDIN(&Filename[0], Filename.size(),
&ErrorStr);
if (F == 0) {
if (Err)
Err->setError(Filename, "Could not open input file '" + Filename + "'");
return 0;
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}
TheParseError = Err;
Module *Result = RunVMAsmParser(F);
delete F;
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return Result;
}
Module *llvm::ParseAssemblyString(const char *AsmString, Module *M,
ParseError *Err) {
TheParseError = Err;
MemoryBuffer *F = MemoryBuffer::getMemBuffer(AsmString,
AsmString+strlen(AsmString),
"<string>");
Module *Result = RunVMAsmParser(F);
delete F;
return Result;
}
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//===------------------------------------------------------------------------===
// ParseError Class
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//===------------------------------------------------------------------------===
void ParseError::setError(const std::string &filename,
const std::string &message,
int lineNo, int colNo) {
Filename = filename;
Message = message;
LineNo = lineNo;
colNo = colNo;
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}
ParseError::ParseError(const ParseError &E)
: Filename(E.Filename), Message(E.Message) {
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LineNo = E.LineNo;
ColumnNo = E.ColumnNo;
}
// Includes info from options
const std::string ParseError::getMessage() const {
std::string Result;
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char Buffer[10];
if (Filename == "-")
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Result += "<stdin>";
else
Result += Filename;
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if (LineNo != -1) {
sprintf(Buffer, "%d", LineNo);
Result += std::string(":") + Buffer;
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if (ColumnNo != -1) {
sprintf(Buffer, "%d", ColumnNo);
Result += std::string(",") + Buffer;
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}
}
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return Result + ": " + Message;
}