add a libDriver, for now only move the text diangostics stuff from Driver to there

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@54383 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 53 insertions, 0 deletions

diff --git a/lib/Driver/TextDiagnostics.cpp b/lib/Driver/TextDiagnostics.cpp
new file mode 100644
index 0000000000..ae7b57dc2c
--- /dev/null
+++ b/lib/Driver/TextDiagnostics.cpp
@@ -0,0 +1,53 @@
+//===--- TextDiagnostics.cpp - Text Diagnostics Parent Class --------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This is the parent class for all text diagnostics.
+//
+//===----------------------------------------------------------------------===//
+
+#include "clang/Driver/TextDiagnostics.h"
+#include "clang/Basic/SourceLocation.h"
+#include "clang/Basic/SourceManager.h"
+#include "clang/Lex/HeaderSearch.h"
+using namespace clang;
+
+TextDiagnostics:: ~TextDiagnostics() {}
+
+std::string TextDiagnostics::FormatDiagnostic(Diagnostic &Diags,
+                                              Diagnostic::Level Level,
+                                              diag::kind ID,
+                                              const std::string *Strs,
+                                              unsigned NumStrs) {
+  std::string Msg = Diags.getDescription(ID);
+  
+  // Replace all instances of %0 in Msg with 'Extra'.
+  for (unsigned i = 0; i < Msg.size() - 1; ++i) {
+    if (Msg[i] == '%' && isdigit(Msg[i + 1])) {
+      unsigned StrNo = Msg[i + 1] - '0';
+      Msg = std::string(Msg.begin(), Msg.begin() + i) +
+            (StrNo < NumStrs ? Strs[StrNo] : "<<<INTERNAL ERROR>>>") +
+            std::string(Msg.begin() + i + 2, Msg.end());
+    }
+  }
+
+  return Msg;
+}
+
+bool TextDiagnostics::isInSystemHeader(FullSourceLoc Pos) const {
+  if (!Pos.isValid()) return false;
+  
+  if (const FileEntry *F = Pos.getFileEntryForLoc()) {
+    DirectoryLookup::DirType DirInfo = TheHeaderSearch->getFileDirFlavor(F);
+    if (DirInfo == DirectoryLookup::SystemHeaderDir ||
+        DirInfo == DirectoryLookup::ExternCSystemHeaderDir)
+      return true;
+  }
+
+  return false;
+}