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Make clang_Cursor_getMangling not mangle if the declaration isn't mangled 

Right now clang_Cursor_getMangling will attempt to mangle any
declaration, even if the declaration isn't mangled (extern C).  This
results in a partially mangled name which isn't useful for much. This
patch makes clang_Cursor_getMangling return an empty string if the
declaration isn't mangled.

Patch by Michael Wu <mwu@mozilla.com>.

llvm-svn: 249639
This commit is contained in:
Ehsan Akhgari 2015-10-08 00:01:20 +00:00
parent 94fe836afa
commit f8d44de143
3 changed files with 12 additions and 1 deletions
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5
clang/test/Index/print-mangled-name.cpp
View File

@ -29,3 +29,8 @@ int foo(S, S&);
// ITANIUM: mangled=_Z3foo1SRS_
// MACHO: mangled=__Z3foo1SRS_
// MICROSOFT: mangled=?foo@@YAHUS
extern "C" int foo(int);
// ITANIUM: mangled=foo
// MACHO: mangled=_foo
// MICROSOFT: mangled=_foo

2
clang/tools/c-index-test/c-index-test.c
View File

@ -1429,6 +1429,8 @@ static enum CXChildVisitResult PrintTypeSize(CXCursor cursor, CXCursor p,
static enum CXChildVisitResult PrintMangledName(CXCursor cursor, CXCursor p,
CXClientData d) {
if (clang_isUnexposed(clang_getCursorKind(cursor)))
return CXChildVisit_Recurse;
CXString MangledName;
PrintCursor(cursor, NULL);
MangledName = clang_Cursor_getMangling(cursor);

6
clang/tools/libclang/CIndex.cpp
View File

@ -3890,7 +3890,11 @@ CXString clang_Cursor_getMangling(CXCursor C) {
std::string FrontendBuf;
llvm::raw_string_ostream FrontendBufOS(FrontendBuf);
MC->mangleName(ND, FrontendBufOS);
if (MC->shouldMangleDeclName(ND)) {
MC->mangleName(ND, FrontendBufOS);
} else {
ND->printName(FrontendBufOS);
}
// Now apply backend mangling.
std::unique_ptr<llvm::DataLayout> DL(