Better error message.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94544 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CompilerDriver/CompilationGraph.cpp b/lib/CompilerDriver/CompilationGraph.cpp
index 56e5b9c..524607b 100644
--- a/lib/CompilerDriver/CompilationGraph.cpp
+++ b/lib/CompilerDriver/CompilationGraph.cpp
@@ -33,9 +33,11 @@
namespace llvmc {
const std::string& LanguageMap::GetLanguage(const sys::Path& File) const {
- LanguageMap::const_iterator Lang = this->find(File.getSuffix());
+ StringRef suf = File.getSuffix();
+ LanguageMap::const_iterator Lang = this->find(suf);
if (Lang == this->end())
- throw std::runtime_error(("Unknown suffix: " + File.getSuffix()).str());
+ throw std::runtime_error("File '" + File.str() +
+ "' has unknown suffix '" + suf.str() + '\'');
return Lang->second;
}
}