Author: compnerd
Date: Wed Nov 11 21:57:22 2015
New Revision: 252853
URL: http://llvm.org/viewvc/llvm-project?rev=252853&view=rev
Log:
libclang: add clang_Cursor_getCXXManglings
This function permits the mangling of a C++ 'structor. Depending on the ABI and
the declaration, the declaration may contain more than one associated symbol for
a given declaration. This allows the consumer to retrieve all of the associated
symbols for the declaration the cursor points to.
Added:
cfe/trunk/test/Index/print-cxx-manglings.cpp
Modified:
cfe/trunk/include/clang-c/Index.h
cfe/trunk/tools/c-index-test/c-index-test.c
cfe/trunk/tools/libclang/CIndex.cpp
cfe/trunk/tools/libclang/libclang.exports
Modified: cfe/trunk/include/clang-c/Index.h
URL:
http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang-c/Index.h?rev=252853&r1=252852&r2=252853&view=diff
==============================================================================
--- cfe/trunk/include/clang-c/Index.h (original)
+++ cfe/trunk/include/clang-c/Index.h Wed Nov 11 21:57:22 2015
@@ -3863,6 +3863,12 @@ CINDEX_LINKAGE CXString clang_Cursor_get
CINDEX_LINKAGE CXString clang_Cursor_getMangling(CXCursor);
/**
+ * \brief Retrieve the CXStrings representing the mangled symbols of the C++
+ * constructor or destructor at the cursor.
+ */
+CINDEX_LINKAGE CXStringSet *clang_Cursor_getCXXManglings(CXCursor);
+
+/**
* @}
*/
Added: cfe/trunk/test/Index/print-cxx-manglings.cpp
URL:
http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Index/print-cxx-manglings.cpp?rev=252853&view=auto
==============================================================================
--- cfe/trunk/test/Index/print-cxx-manglings.cpp (added)
+++ cfe/trunk/test/Index/print-cxx-manglings.cpp Wed Nov 11 21:57:22 2015
@@ -0,0 +1,66 @@
+// REQUIRES: x86-registered-target
+
+// RUN: c-index-test -write-pch %t.itanium.ast -target i686-pc-linux-gnu
-fdeclspec %s
+// RUN: c-index-test -test-print-manglings %t.itanium.ast | FileCheck
--check-prefix=ITANIUM %s
+
+// RUN: c-index-test -write-pch %t.macho.ast -target i686-apple-darwin
-fdeclspec %s
+// RUN: c-index-test -test-print-manglings %t.macho.ast | FileCheck
--check-prefix=MACHO %s
+
+// RUN: c-index-test -write-pch %t.msvc.ast -target i686-pc-windows %s
+// RUN: c-index-test -test-print-manglings %t.msvc.ast | FileCheck
--check-prefix=MSVC %s
+
+struct s {
+ s(int);
+ ~s();
+ int m(int);
+};
+
+// ITANIUM: CXXConstructor=s{{.*}}[mangled=_ZN1sC2Ei] [mangled=_ZN1sC1Ei]
+// ITANIUM: CXXDestructor=~s{{.*}}[mangled=_ZN1sD2Ev] [mangled=_ZN1sD1Ev]
[mangled=_ZN1sD0Ev]
+
+// MACHO: CXXConstructor=s{{.*}}[mangled=__ZN1sC2Ei] [mangled=__ZN1sC1Ei]
+// MACHO: CXXDestructor=~s{{.*}}[mangled=__ZN1sD2Ev] [mangled=__ZN1sD1Ev]
[mangled=__ZN1sD0Ev]
+
+// MSVC: CXXConstructor=s{{.*}}[mangled=??0s@@QAE@H@Z]
+// MSVC: CXXDestructor=~s{{.*}}[mangled=??1s@@QAE@XZ]
+
+struct t {
+ t(int);
+ virtual ~t();
+ int m(int);
+};
+
+// ITANIUM: CXXConstructor=t{{.*}}[mangled=_ZN1tC2Ei] [mangled=_ZN1tC1Ei]
+// ITANIUM: CXXDestructor=~t{{.*}}[mangled=_ZN1tD2Ev] [mangled=_ZN1tD1Ev]
+
+// MACHO: CXXConstructor=t{{.*}}[mangled=__ZN1tC2Ei] [mangled=__ZN1tC1Ei]
+// MACHO: CXXDestructor=~t{{.*}}[mangled=__ZN1tD2Ev] [mangled=__ZN1tD1Ev]
+
+// MSVC: CXXConstructor=t{{.*}}[mangled=??0t@@QAE@H@Z]
+// MSVC: CXXDestructor=~t{{.*}}[mangled=??1t@@UAE@XZ]
+
+struct u {
+ u();
+ virtual ~u();
+ virtual int m(int) = 0;
+};
+
+// ITANIUM: CXXConstructor=u{{.*}}[mangled=_ZN1uC2Ev]
+// ITANIUM: CXXDestructor=~u{{.*}}[mangled=_ZN1uD2Ev] [mangled=_ZN1uD1Ev]
+
+// MACHO: CXXConstructor=u{{.*}}[mangled=__ZN1uC2Ev]
+// MACHO: CXXDestructor=~u{{.*}}[mangled=__ZN1uD2Ev] [mangled=__ZN1uD1Ev]
+
+// MSVC: CXXConstructor=u{{.*}}[mangled=??0u@@QAE@XZ]
+// MSVC: CXXDestructor=~u{{.*}}[mangled=??1u@@UAE@XZ]
+
+struct v {
+ __declspec(dllexport) v(int = 0);
+};
+
+// ITANIUM: CXXConstructor=v{{.*}}[mangled=_ZN1vC2Ei] [mangled=_ZN1vC1Ei]
+
+// MACHO: CXXConstructor=v{{.*}}[mangled=__ZN1vC2Ei] [mangled=__ZN1vC1Ei]
+
+// MSVC: CXXConstructor=v{{.*}}[mangled=??0v@@QAE@H@Z] [mangled=??_Fv@@QAEXXZ]
+
Modified: cfe/trunk/tools/c-index-test/c-index-test.c
URL:
http://llvm.org/viewvc/llvm-project/cfe/trunk/tools/c-index-test/c-index-test.c?rev=252853&r1=252852&r2=252853&view=diff
==============================================================================
--- cfe/trunk/tools/c-index-test/c-index-test.c (original)
+++ cfe/trunk/tools/c-index-test/c-index-test.c Wed Nov 11 21:57:22 2015
@@ -1441,6 +1441,25 @@ static enum CXChildVisitResult PrintMang
return CXChildVisit_Continue;
}
+static enum CXChildVisitResult PrintManglings(CXCursor cursor, CXCursor p,
+ CXClientData d) {
+ unsigned I, E;
+ CXStringSet *Manglings = NULL;
+ if (clang_isUnexposed(clang_getCursorKind(cursor)))
+ return CXChildVisit_Recurse;
+ if (!clang_isDeclaration(clang_getCursorKind(cursor)))
+ return CXChildVisit_Recurse;
+ if (clang_getCursorKind(cursor) == CXCursor_ParmDecl)
+ return CXChildVisit_Continue;
+ PrintCursor(cursor, NULL);
+ Manglings = clang_Cursor_getCXXManglings(cursor);
+ for (I = 0, E = Manglings->Count; I < E; ++I)
+ printf(" [mangled=%s]", clang_getCString(Manglings->Strings[I]));
+ clang_disposeStringSet(Manglings);
+ printf("\n");
+ return CXChildVisit_Recurse;
+}
+
/******************************************************************************/
/* Bitwidth testing.
*/
/******************************************************************************/
@@ -4163,6 +4182,8 @@ int cindextest_main(int argc, const char
PrintBitWidth, 0);
else if (argc > 2 && strcmp(argv[1], "-test-print-mangle") == 0)
return perform_test_load_tu(argv[2], "all", NULL, PrintMangledName, NULL);
+ else if (argc > 2 && strcmp(argv[1], "-test-print-manglings") == 0)
+ return perform_test_load_tu(argv[2], "all", NULL, PrintManglings, NULL);
else if (argc > 1 && strcmp(argv[1], "-print-usr") == 0) {
if (argc > 2)
return print_usrs(argv + 2, argv + argc);
Modified: cfe/trunk/tools/libclang/CIndex.cpp
URL:
http://llvm.org/viewvc/llvm-project/cfe/trunk/tools/libclang/CIndex.cpp?rev=252853&r1=252852&r2=252853&view=diff
==============================================================================
--- cfe/trunk/tools/libclang/CIndex.cpp (original)
+++ cfe/trunk/tools/libclang/CIndex.cpp Wed Nov 11 21:57:22 2015
@@ -3911,6 +3911,75 @@ CXString clang_Cursor_getMangling(CXCurs
return cxstring::createDup(FinalBufOS.str());
}
+static std::string getMangledStructor(std::unique_ptr<MangleContext> &M,
+ std::unique_ptr<llvm::DataLayout> &DL,
+ const NamedDecl *ND,
+ unsigned StructorType) {
+ std::string FrontendBuf;
+ llvm::raw_string_ostream FOS(FrontendBuf);
+
+ if (const auto *CD = dyn_cast_or_null<CXXConstructorDecl>(ND))
+ M->mangleCXXCtor(CD, static_cast<CXXCtorType>(StructorType), FOS);
+ else if (const auto *DD = dyn_cast_or_null<CXXDestructorDecl>(ND))
+ M->mangleCXXDtor(DD, static_cast<CXXDtorType>(StructorType), FOS);
+
+ std::string BackendBuf;
+ llvm::raw_string_ostream BOS(BackendBuf);
+
+ llvm::Mangler::getNameWithPrefix(BOS, llvm::Twine(FOS.str()), *DL);
+
+ return BOS.str();
+}
+
+CXStringSet *clang_Cursor_getCXXManglings(CXCursor C) {
+ if (clang_isInvalid(C.kind) || !clang_isDeclaration(C.kind))
+ return nullptr;
+
+ const Decl *D = getCursorDecl(C);
+ if (!(isa<CXXRecordDecl>(D) || isa<CXXMethodDecl>(D)))
+ return nullptr;
+
+ const NamedDecl *ND = cast<NamedDecl>(D);
+
+ ASTContext &Ctx = ND->getASTContext();
+ std::unique_ptr<MangleContext> M(Ctx.createMangleContext());
+ std::unique_ptr<llvm::DataLayout> DL(
+ new llvm::DataLayout(Ctx.getTargetInfo().getDataLayoutString()));
+
+ std::vector<std::string> Manglings;
+
+ auto hasDefaultCXXMethodCC = [](ASTContext &C, const CXXMethodDecl *MD) {
+ auto DefaultCC = C.getDefaultCallingConvention(/*IsVariadic=*/false,
+ /*IsCSSMethod=*/true);
+ auto CC = MD->getType()->getAs<FunctionProtoType>()->getCallConv();
+ return CC == DefaultCC;
+ };
+
+ if (const auto *CD = dyn_cast_or_null<CXXConstructorDecl>(ND)) {
+ Manglings.emplace_back(getMangledStructor(M, DL, CD, Ctor_Base));
+
+ if (Ctx.getTargetInfo().getCXXABI().isItaniumFamily())
+ if (!CD->getParent()->isAbstract())
+ Manglings.emplace_back(getMangledStructor(M, DL, CD, Ctor_Complete));
+
+ if (Ctx.getTargetInfo().getCXXABI().isMicrosoft())
+ if (CD->hasAttr<DLLExportAttr>() && CD->isDefaultConstructor())
+ if (!(hasDefaultCXXMethodCC(Ctx, CD) && CD->getNumParams() == 0))
+ Manglings.emplace_back(getMangledStructor(M, DL, CD,
+ Ctor_DefaultClosure));
+ } else if (const auto *DD = dyn_cast_or_null<CXXDestructorDecl>(ND)) {
+ Manglings.emplace_back(getMangledStructor(M, DL, DD, Dtor_Base));
+ if (Ctx.getTargetInfo().getCXXABI().isItaniumFamily()) {
+ Manglings.emplace_back(getMangledStructor(M, DL, DD, Dtor_Complete));
+
+ if (!DD->isVirtual())
+ Manglings.emplace_back(getMangledStructor(M, DL, DD, Dtor_Deleting));
+ }
+ }
+
+ return cxstring::createSet(Manglings);
+}
+
CXString clang_getCursorDisplayName(CXCursor C) {
if (!clang_isDeclaration(C.kind))
return clang_getCursorSpelling(C);
Modified: cfe/trunk/tools/libclang/libclang.exports
URL:
http://llvm.org/viewvc/llvm-project/cfe/trunk/tools/libclang/libclang.exports?rev=252853&r1=252852&r2=252853&view=diff
==============================================================================
--- cfe/trunk/tools/libclang/libclang.exports (original)
+++ cfe/trunk/tools/libclang/libclang.exports Wed Nov 11 21:57:22 2015
@@ -15,6 +15,7 @@ clang_Cursor_getTemplateArgumentValue
clang_Cursor_getTemplateArgumentUnsignedValue
clang_Cursor_getBriefCommentText
clang_Cursor_getCommentRange
+clang_Cursor_getCXXManglings
clang_Cursor_getMangling
clang_Cursor_getParsedComment
clang_Cursor_getRawCommentText
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