[arcmt] Introduce new '-ccc-arcmt-migrate <path>' ARC migration driver option.
This is a new mode of migration, where we avoid modifying the original files but
we emit temporary files instead.
<path> will be used to keep migration process metadata. Currently the temporary files
that are produced are put in the system's temp directory but we can put them
in the <path> if is necessary.
Also introduce new ARC migration functions in libclang whose only purpose,
currently, is to accept <path> and provide pairs of original file/transformed file
to map from the originals to the files after transformations are applied.
Finally introduce the c-arcmt-test utility that exercises the new libclang functions,
update arcmt-test, and add tests for the whole process.
rdar://9735086.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134844 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/clang/Driver/CC1Options.td b/include/clang/Driver/CC1Options.td
index fcd6f64..6befc8c 100644
--- a/include/clang/Driver/CC1Options.td
+++ b/include/clang/Driver/CC1Options.td
@@ -389,6 +389,10 @@
HelpText<"Check for ARC migration issues that need manual handling">;
def arcmt_modify : Flag<"-arcmt-modify">,
HelpText<"Apply modifications to files to conform to ARC">;
+def arcmt_migrate : Flag<"-arcmt-migrate">,
+ HelpText<"Apply modifications and produces temporary files that conform to ARC">;
+def arcmt_migrate_directory : Separate<"-arcmt-migrate-directory">,
+ HelpText<"Directory for temporary files produced during ARC migration">;
def import_module : Separate<"-import-module">,
HelpText<"Import a module definition file">;