Add stopgap option -fmodule-implementation-of <name>
This flag specifies that we are building an implementation file of the
module <name>, preventing importing <name> as a module. This does not
consider this to be the 'current module' for the purposes of doing
modular checks like decluse or non-modular-include warnings, unlike
-fmodule-name.
This is needed as a stopgap until:
1) we can resolve relative includes to a VFS-mapped module (or can
safely import a header textually and as part of a module)
and ideally
2) we can safely do incremental rebuilding when implementation files
import submodules.
llvm-svn: 213767
diff --git a/clang/lib/Frontend/CompilerInvocation.cpp b/clang/lib/Frontend/CompilerInvocation.cpp
index 2025871..0c6d77d 100644
--- a/clang/lib/Frontend/CompilerInvocation.cpp
+++ b/clang/lib/Frontend/CompilerInvocation.cpp
@@ -1495,6 +1495,14 @@
Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal);
Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack);
Opts.CurrentModule = Args.getLastArgValue(OPT_fmodule_name);
+ Opts.ImplementationOfModule =
+ Args.getLastArgValue(OPT_fmodule_implementation_of);
+
+ if (!Opts.CurrentModule.empty() && !Opts.ImplementationOfModule.empty() &&
+ Opts.CurrentModule != Opts.ImplementationOfModule) {
+ Diags.Report(diag::err_conflicting_module_names)
+ << Opts.CurrentModule << Opts.ImplementationOfModule;
+ }
if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) {
switch (llvm::StringSwitch<unsigned>(A->getValue())