Import LLVM, at r72732.

1 files changed, 87 insertions, 0 deletions

diff --git a/lib/AsmParser/Parser.cpp b/lib/AsmParser/Parser.cpp
new file mode 100644
index 0000000..759e00e
--- /dev/null
+++ b/lib/AsmParser/Parser.cpp
@@ -0,0 +1,87 @@
+//===- 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.
+//
+//===----------------------------------------------------------------------===//
+//
+// This library implements the functionality defined in llvm/Assembly/Parser.h
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/Assembly/Parser.h"
+#include "LLParser.h"
+#include "llvm/Module.h"
+#include "llvm/ADT/OwningPtr.h"
+#include "llvm/Support/MemoryBuffer.h"
+#include "llvm/Support/raw_ostream.h"
+#include <cstring>
+using namespace llvm;
+
+Module *llvm::ParseAssemblyFile(const std::string &Filename, ParseError &Err) {
+  Err.setFilename(Filename);
+
+  std::string ErrorStr;
+  OwningPtr<MemoryBuffer>
+    F(MemoryBuffer::getFileOrSTDIN(Filename.c_str(), &ErrorStr));
+  if (F == 0) {
+    Err.setError("Could not open input file '" + Filename + "'");
+    return 0;
+  }
+
+  OwningPtr<Module> M(new Module(Filename));
+  if (LLParser(F.get(), Err, M.get()).Run())
+    return 0;
+  return M.take();
+}
+
+Module *llvm::ParseAssemblyString(const char *AsmString, Module *M,
+                                  ParseError &Err) {
+  Err.setFilename("<string>");
+
+  OwningPtr<MemoryBuffer>
+    F(MemoryBuffer::getMemBuffer(AsmString, AsmString+strlen(AsmString),
+                                 "<string>"));
+  
+  // If we are parsing into an existing module, do it.
+  if (M)
+    return LLParser(F.get(), Err, M).Run() ? 0 : M;
+
+  // Otherwise create a new module.
+  OwningPtr<Module> M2(new Module("<string>"));
+  if (LLParser(F.get(), Err, M2.get()).Run())
+    return 0;
+  return M2.take();
+}
+
+
+//===------------------------------------------------------------------------===
+//                              ParseError Class
+//===------------------------------------------------------------------------===
+
+void ParseError::PrintError(const char *ProgName, raw_ostream &S) {
+  errs() << ProgName << ": ";
+  if (Filename == "-")
+    errs() << "<stdin>";
+  else
+    errs() << Filename;
+
+  if (LineNo != -1) {
+    errs() << ':' << LineNo;
+    if (ColumnNo != -1)
+      errs() << ':' << (ColumnNo+1);
+  }
+
+  errs() << ": " << Message << '\n';
+
+  if (LineNo != -1 && ColumnNo != -1) {
+    errs() << LineContents << '\n';
+
+    // Print out spaces/tabs before the caret.
+    for (unsigned i = 0; i != unsigned(ColumnNo); ++i)
+      errs() << (LineContents[i] == '\t' ? '\t' : ' ');
+    errs() << "^\n";
+  }
+}