cpp11-migrate: Write header replacements to disk

Another attempt to commit r187204 after windows related problems has
been fixed. Note that changes to this patch reflect the current behavior
of cpp11-migrate.

Header replacements are now written to disk in YAML format for an external tool
to merge. A unique file will be created in the same directory as the header
with all replacements that came from a source file that included the header
file. The YAML file will have:
- Name of the header file
- Name of the source file that included the header file
- Transform ID that generated the replacement
- Offset
- Length
- Replacement text

Any tool reading these replacements should read them using the
HeaderChangeDocument struct.

Differential Revision: http://llvm-reviews.chandlerc.com/D1369

llvm-svn: 188274

1 files changed, 25 insertions, 0 deletions

diff --git a/clang-tools-extra/unittests/cpp11-migrate/Utility.h b/clang-tools-extra/unittests/cpp11-migrate/Utility.h
new file mode 100644
index 00000000000..54291d941a3
--- /dev/null
+++ b/clang-tools-extra/unittests/cpp11-migrate/Utility.h
@@ -0,0 +1,25 @@
+//=-- cpp11-migrate/Utility.h - Utility functions and macros-----*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef CPP11_MIGRATE_UNITTESTS_UTILITY_H
+#define CPP11_MIGRATE_UNITTESTS_UTILITY_H
+
+// FIXME: copied from unittests/Support/Path.cpp
+#define ASSERT_NO_ERROR(x)                                                     \
+  if (llvm::error_code ASSERT_NO_ERROR_ec = x) {                               \
+    llvm::SmallString<128> MessageStorage;                                     \
+    llvm::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 {                                                                     \
+  }
+
+#endif // CPP11_MIGRATE_UNITTESTS_UTILITY_H