- Ran clang-format yet again. Addressed some reviewer comments.

Hi klimek, djasper, silvas,

http://llvm-reviews.chandlerc.com/D1422

CHANGE SINCE LAST DIFF
  http://llvm-reviews.chandlerc.com/D1422?vs=3524&id=3534#toc

Files:
  include/clang/Tooling/ReplacementsYaml.h
  unittests/Tooling/CMakeLists.txt
  unittests/Tooling/ReplacementsYamlTest.cpp
Index: include/clang/Tooling/ReplacementsYaml.h
===================================================================
--- /dev/null
+++ include/clang/Tooling/ReplacementsYaml.h
@@ -0,0 +1,104 @@
+//===-- ReplacementsYaml.h -- Serialiazation for Replacements ---*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+///
+/// \file
+/// \brief This file defines the structure of a YAML document for serializing
+/// replacements.
+///
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_CLANG_TOOLING_REPLACEMENTS_YAML_H
+#define LLVM_CLANG_TOOLING_REPLACEMENTS_YAML_H
+
+#include "clang/Tooling/Refactoring.h"
+#include "llvm/Support/YAMLTraits.h"
+#include <vector>
+#include <string>
+
+namespace clang {
+namespace tooling {
+
+/// \brief The top-level YAML document that contains all Replacements.
+struct ReplacementsDocument {
+  /// A freeform chunk of text to describe the context of the replacements in
+  /// this document.
+  std::string Context;
+
+  std::vector<Replacement> Replacements;
+};
+
+} // end namespace tooling
+} // end namespace clang
+
+LLVM_YAML_IS_SEQUENCE_VECTOR(clang::tooling::Replacement)
+
+namespace llvm {
+namespace yaml {
+
+/// \brief ScalarTraits to read/write std::string objects.
+template <> struct ScalarTraits<std::string> {
+  static void output(const std::string &Val, void *, llvm::raw_ostream &Out) {
+    // We need to put quotes around the string to make sure special characters
+    // in the string is not treated as YAML tokens.
+    std::string NormalizedVal = std::string("\"") + Val + std::string("\"");
+    Out << NormalizedVal;
+  }
+
+  static StringRef input(StringRef Scalar, void *, std::string &Val) {
+    Val = Scalar;
+    return StringRef();
+  }
+};
+
+/// \brief Specialized MappingTraits to describe how a Replacement is
+/// (de)serialized.
+template <> struct MappingTraits<clang::tooling::Replacement> {
+  /// \brief Helper to (de)serialize a Replacement since we don't have direct
+  /// access to its data members.
+  struct NormalizedReplacement {
+    NormalizedReplacement(const IO &)
+        : FilePath(""), Offset(0), Length(0), ReplacementText("") {}
+
+    NormalizedReplacement(const IO &, const clang::tooling::Replacement &R)
+        : FilePath(R.getFilePath()), Offset(R.getOffset()),
+          Length(R.getLength()), ReplacementText(R.getReplacementText()) {}
+
+    clang::tooling::Replacement denormalize(const IO &) {
+      return clang::tooling::Replacement(FilePath, Offset, Length,
+                                         ReplacementText);
+    }
+
+    std::string FilePath;
+    unsigned int Offset;
+    unsigned int Length;
+    std::string ReplacementText;
+  };
+
+  static void mapping(IO &Io, clang::tooling::Replacement &R) {
+    MappingNormalization<NormalizedReplacement, clang::tooling::Replacement>
+    Keys(Io, R);
+    Io.mapRequired("FilePath", Keys->FilePath);
+    Io.mapRequired("Offset", Keys->Offset);
+    Io.mapRequired("Length", Keys->Length);
+    Io.mapRequired("ReplacementText", Keys->ReplacementText);
+  }
+};
+
+/// \brief Specialized MappingTraits to describe how a ReplacementsDocument is
+/// (de)serialized.
+template <> struct MappingTraits<clang::tooling::ReplacementsDocument> {
+  static void mapping(IO &Io, clang::tooling::ReplacementsDocument &Doc) {
+    Io.mapOptional("Context", Doc.Context, std::string());
+    Io.mapRequired("Replacements", Doc.Replacements);
+  }
+};
+} // end namespace yaml
+} // end namespace llvm
+
+#endif // LLVM_CLANG_TOOLING_REPLACEMENTS_YAML_H
Index: unittests/Tooling/CMakeLists.txt
===================================================================
--- unittests/Tooling/CMakeLists.txt
+++ unittests/Tooling/CMakeLists.txt
@@ -14,6 +14,7 @@
   RefactoringTest.cpp
   RewriterTest.cpp
   RefactoringCallbacksTest.cpp
+  ReplacementsYamlTest.cpp
   )
 
 target_link_libraries(ToolingTests
Index: unittests/Tooling/ReplacementsYamlTest.cpp
===================================================================
--- /dev/null
+++ unittests/Tooling/ReplacementsYamlTest.cpp
@@ -0,0 +1,116 @@
+//===- unittests/Tooling/ReplacementsYamlTest.cpp - Serialization tests ---===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// Tests for serialization of Replacements.
+//
+//===----------------------------------------------------------------------===//
+
+#include "clang/Tooling/ReplacementsYaml.h"
+#include "gtest/gtest.h"
+
+// FIXME: Copied from llvm/unittests/Support/Path.cpp
+#define ASSERT_NO_ERROR(x) \
+  if (error_code ASSERT_NO_ERROR_ec = x) { \
+    SmallString<128> MessageStorage; \
+    raw_svector_ostream Message(MessageStorage); \
+    Message << #x ": did not return errc::success.\n" \
+            << "error number: " << ASSERT_NO_ERROR_ec.value() << "\n" \
+            << "error message: " << ASSERT_NO_ERROR_ec.message() << "\n"; \
+    GTEST_FATAL_FAILURE_(MessageStorage.c_str()); \
+  } else {}
+
+using namespace llvm;
+using namespace clang::tooling;
+
+TEST(ReplacementsYamlTest, writeReadTest) {
+
+  const std::string TargetFile = "/path/to/common.h";
+  const std::string Context = "/path/to/source.cpp";
+  const unsigned int ReplacementOffset1 = 232;
+  const unsigned int ReplacementLength1 = 56;
+  const std::string ReplacementText1 = "(auto & elem : V)";
+  const unsigned int ReplacementOffset2 = 301;
+  const unsigned int ReplacementLength2 = 2;
+  const std::string ReplacementText2 = "elem";
+
+  ReplacementsDocument Doc;
+  Doc.Replacements.push_back(Replacement(TargetFile, ReplacementOffset1,
+                                        ReplacementLength1, ReplacementText1));
+  Doc.Replacements.push_back(Replacement(TargetFile, ReplacementOffset2,
+                                        ReplacementLength2, ReplacementText2));
+
+  Doc.Context = Context;
+
+  std::string YamlContent;
+  llvm::raw_string_ostream YamlContentStream(YamlContent);
+
+  // Write to the YAML file.
+  {
+    yaml::Output YAML(YamlContentStream);
+    YAML << Doc;
+    YamlContentStream.str();
+    ASSERT_NE(YamlContent.length(), 0u);
+  }
+
+  // Read from the YAML file and verify that what was written is exactly what
+  // we read back.
+  {
+    ReplacementsDocument DocActual;
+    yaml::Input YAML(YamlContent);
+    YAML >> DocActual;
+    ASSERT_NO_ERROR(YAML.error());
+    EXPECT_EQ(Context, DocActual.Context);
+    ASSERT_EQ(2u, DocActual.Replacements.size());
+
+    EXPECT_EQ(TargetFile, DocActual.Replacements[0].getFilePath());
+    EXPECT_EQ(ReplacementOffset1, DocActual.Replacements[0].getOffset());
+    EXPECT_EQ(ReplacementLength1, DocActual.Replacements[0].getLength());
+    EXPECT_EQ(ReplacementText1,
+              DocActual.Replacements[0].getReplacementText().str());
+
+    EXPECT_EQ(TargetFile, DocActual.Replacements[1].getFilePath());
+    EXPECT_EQ(ReplacementOffset2, DocActual.Replacements[1].getOffset());
+    EXPECT_EQ(ReplacementLength2, DocActual.Replacements[1].getLength());
+    EXPECT_EQ(ReplacementText2,
+              DocActual.Replacements[1].getReplacementText().str());
+  }
+}
+
+TEST(ReplacementsYamlTest, optionalContextWrite) {
+
+  ReplacementsDocument Doc;
+  Doc.Replacements.push_back(Replacement(/*FilePath=*/"target_file.h",
+                                         /*Offset=*/1,
+                                         /*Length=*/10,
+                                         /*ReplacementText=*/"replacement"));
+  std::string YamlContent;
+  llvm::raw_string_ostream YamlContentStream(YamlContent);
+
+  // Make sure a doc can be written without the context field.
+  yaml::Output YAML(YamlContentStream);
+  YAML << Doc;
+  YamlContentStream.flush();
+  ASSERT_NE(YamlContent.length(), 0u);
+  ASSERT_EQ(std::string::npos, YamlContent.find("Context:"));
+}
+
+TEST(ReplacementsYamlTest, optionalContextRead) {
+  // Make sure a doc can be read without the context field.
+  std::string YamlContent = "---\n"
+                            "Replacements:\n"
+                            "  - FilePath:        \"target_file.h\"\n"
+                            "    Offset:          1\n"
+                            "    Length:          10\n"
+                            "    ReplacementText: \"replacement\"\n"
+                            "...\n";
+  ReplacementsDocument DocActual;
+  yaml::Input YAML(YamlContent);
+  YAML >> DocActual;
+  ASSERT_NO_ERROR(YAML.error());
+}
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