gecko-dev/build/build-clang/return-empty-string-non-man...

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commit 009de5ea7a1913f0b4619cf514787bd52af38c28
Author: Michael Wu <mwu@mozilla.com>
Date: Thu Sep 24 11:36:08 2015 -0400
Return an empty string when a symbol isn't mangled
diff --git a/clang/tools/libclang/CIndex.cpp b/clang/tools/libclang/CIndex.cpp
index 9fa18d3..1253832 100644
--- a/clang/tools/libclang/CIndex.cpp
+++ b/clang/tools/libclang/CIndex.cpp
@@ -3891,6 +3891,10 @@ CXString clang_Cursor_getMangling(CXCursor C) {
ASTContext &Ctx = ND->getASTContext();
std::unique_ptr<MangleContext> MC(Ctx.createMangleContext());
+ // Don't mangle if we don't need to.
+ if (!MC->shouldMangleCXXName(ND))
+ return cxstring::createEmpty();
+
std::string FrontendBuf;
llvm::raw_string_ostream FrontendBufOS(FrontendBuf);
MC->mangleName(ND, FrontendBufOS);