cpp11-migrate: Add headers to file override information

File override structures now contain per-source overrides for headers.

For now, modified headers are written to disk when the Migrator is done.
This is only temporary behaviour since we can expect headers to be
changed by migrating multiple source files. The changes need to be
merged after all migrations are complete.

llvm-svn: 183917

1 files changed, 13 insertions, 0 deletions

diff --git a/clang-tools-extra/cpp11-migrate/tool/Cpp11Migrate.cpp b/clang-tools-extra/cpp11-migrate/tool/Cpp11Migrate.cpp
index 26c2ac4bfa2..15f5aa12f5c 100644
--- a/clang-tools-extra/cpp11-migrate/tool/Cpp11Migrate.cpp
+++ b/clang-tools-extra/cpp11-migrate/tool/Cpp11Migrate.cpp
@@ -179,6 +179,19 @@ int main(int argc, const char **argv) {
     llvm::raw_fd_ostream FileStream(I->first.c_str(), ErrorInfo,
                                     llvm::raw_fd_ostream::F_Binary);
     FileStream << I->second.MainFileOverride;
+
+    // FIXME: The Migrator shouldn't be responsible for writing headers
+    // to disk. Instead, it should write replacement info and another tool
+    // should take all replacement info for a header from possibly many other
+    // migration processes and merge it into a final form. For now, the 
+    // updated header is written to disk for testing purposes.
+    for (HeaderOverrides::const_iterator HeaderI = I->second.Headers.begin(),
+                                         HeaderE = I->second.Headers.end();
+         HeaderI != HeaderE; ++HeaderI) {
+      llvm::raw_fd_ostream HeaderStream(I->first.c_str(), ErrorInfo,
+                                        llvm::raw_fd_ostream::F_Binary);
+      HeaderStream << HeaderI->second.FileOverride;
+    }
   }
 
   // Report execution times.