Initial revision
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AsmParser/Parser.cpp b/lib/AsmParser/Parser.cpp
new file mode 100644
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--- /dev/null
+++ b/lib/AsmParser/Parser.cpp
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+//===- Parser.cpp - Main dispatch module for the Parser library -------------===
+//
+// This library implements the functionality defined in llvm/assembly/parser.h
+//
+//===------------------------------------------------------------------------===
+
+#include "llvm/Analysis/Verifier.h"
+#include "llvm/Module.h"
+#include "ParserInternals.h"
+#include <stdio.h> // for sprintf
+
+// The useful interface defined by this file... Parse an ascii file, and return
+// the internal representation in a nice slice'n'dice'able representation.
+//
+Module *ParseAssemblyFile(const ToolCommandLine &Opts) throw (ParseException) {
+ FILE *F = stdin;
+
+ if (Opts.getInputFilename() != "-")
+ F = fopen(Opts.getInputFilename().c_str(), "r");
+
+ if (F == 0) {
+ throw ParseException(Opts, string("Could not open file '") +
+ Opts.getInputFilename() + "'");
+ }
+
+ // TODO: If this throws an exception, F is not closed.
+ Module *Result = RunVMAsmParser(Opts, F);
+
+ if (F != stdin)
+ fclose(F);
+
+ if (Result) { // Check to see that it is valid...
+ vector<string> Errors;
+ if (verify(Result, Errors)) {
+ delete Result; Result = 0;
+ string Message;
+
+ for (unsigned i = 0; i < Errors.size(); i++)
+ Message += Errors[i] + "\n";
+
+ throw ParseException(Opts, Message);
+ }
+ }
+ return Result;
+}
+
+
+//===------------------------------------------------------------------------===
+// ParseException Class
+//===------------------------------------------------------------------------===
+
+
+ParseException::ParseException(const ToolCommandLine &opts,
+ const string &message, int lineNo, int colNo)
+ : Opts(opts), Message(message) {
+ LineNo = lineNo; ColumnNo = colNo;
+}
+
+ParseException::ParseException(const ParseException &E)
+ : Opts(E.Opts), Message(E.Message) {
+ LineNo = E.LineNo;
+ ColumnNo = E.ColumnNo;
+}
+
+const string ParseException::getMessage() const { // Includes info from options
+ string Result;
+ char Buffer[10];
+
+ if (Opts.getInputFilename() == "-")
+ Result += "<stdin>";
+ else
+ Result += Opts.getInputFilename();
+
+ if (LineNo != -1) {
+ sprintf(Buffer, "%d", LineNo);
+ Result += string(":") + Buffer;
+ if (ColumnNo != -1) {
+ sprintf(Buffer, "%d", ColumnNo);
+ Result += string(",") + Buffer;
+ }
+ }
+
+ return Result + ": " + Message;
+}