1 files changed, 87 insertions, 0 deletions
diff --git a/contrib/llvm/tools/clang/include/clang/Frontend/CommandLineSourceLoc.h b/contrib/llvm/tools/clang/include/clang/Frontend/CommandLineSourceLoc.h
new file mode 100644
index 0000000..c01f91d
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+++ b/contrib/llvm/tools/clang/include/clang/Frontend/CommandLineSourceLoc.h
@@ -0,0 +1,87 @@
+
+//===--- CommandLineSourceLoc.h - Parsing for source locations-*- C++ -*---===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// Command line parsing for source locations.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_CLANG_FRONTEND_COMMANDLINESOURCELOC_H
+#define LLVM_CLANG_FRONTEND_COMMANDLINESOURCELOC_H
+
+#include "clang/Basic/LLVM.h"
+#include "llvm/Support/CommandLine.h"
+#include "llvm/Support/raw_ostream.h"
+
+namespace clang {
+
+/// \brief A source location that has been parsed on the command line.
+struct ParsedSourceLocation {
+  std::string FileName;
+  unsigned Line;
+  unsigned Column;
+
+public:
+  /// Construct a parsed source location from a string; the Filename is empty on
+  /// error.
+  static ParsedSourceLocation FromString(StringRef Str) {
+    ParsedSourceLocation PSL;
+    std::pair<StringRef, StringRef> ColSplit = Str.rsplit(':');
+    std::pair<StringRef, StringRef> LineSplit =
+      ColSplit.first.rsplit(':');
+
+    // If both tail splits were valid integers, return success.
+    if (!ColSplit.second.getAsInteger(10, PSL.Column) &&
+        !LineSplit.second.getAsInteger(10, PSL.Line)) {
+      PSL.FileName = LineSplit.first;
+
+      // On the command-line, stdin may be specified via "-". Inside the
+      // compiler, stdin is called "<stdin>".
+      if (PSL.FileName == "-")
+        PSL.FileName = "<stdin>";
+    }
+
+    return PSL;
+  }
+};
+
+}
+
+namespace llvm {
+  namespace cl {
+    /// \brief Command-line option parser that parses source locations.
+    ///
+    /// Source locations are of the form filename:line:column.
+    template<>
+    class parser<clang::ParsedSourceLocation>
+      : public basic_parser<clang::ParsedSourceLocation> {
+    public:
+      inline bool parse(Option &O, StringRef ArgName, StringRef ArgValue,
+                 clang::ParsedSourceLocation &Val);
+    };
+
+    bool
+    parser<clang::ParsedSourceLocation>::
+    parse(Option &O, StringRef ArgName, StringRef ArgValue,
+          clang::ParsedSourceLocation &Val) {
+      using namespace clang;
+
+      Val = ParsedSourceLocation::FromString(ArgValue);
+      if (Val.FileName.empty()) {
+        errs() << "error: "
+               << "source location must be of the form filename:line:column\n";
+        return true;
+      }
+
+      return false;
+    }
+  }
+}
+
+#endif