Index: bindings/python/clang/cindex.py =================================================================== --- bindings/python/clang/cindex.py +++ bindings/python/clang/cindex.py @@ -1478,6 +1478,12 @@ """ return conf.lib.clang_CXXMethod_isVirtual(self) + def is_abstract_record(self): + """Returns True if the cursor refers to a C++ record declaration + that has pure virtual member functions. + """ + return conf.lib.clang_CXXRecord_isAbstract(self) + def is_scoped_enum(self): """Returns True if the cursor refers to a scoped enum declaration. """ @@ -3319,6 +3325,10 @@ [Cursor], bool), + ("clang_CXXRecord_isAbstract", + [Cursor], + bool), + ("clang_EnumDecl_isScoped", [Cursor], bool), Index: bindings/python/tests/cindex/test_cursor.py =================================================================== --- bindings/python/tests/cindex/test_cursor.py +++ bindings/python/tests/cindex/test_cursor.py @@ -255,6 +255,17 @@ assert foo.is_virtual_method() assert not bar.is_virtual_method() +def test_is_abstract_record(): + """Ensure Cursor.is_abstract_record works.""" + source = 'struct X { virtual void x() = 0; }; struct Y : X { void x(); };' + tu = get_tu(source, lang='cpp') + + cls = get_cursor(tu, 'X') + assert cls.is_abstract_record() + + cls = get_cursor(tu, 'Y') + assert not cls.is_abstract_record() + def test_is_scoped_enum(): """Ensure Cursor.is_scoped_enum works.""" source = 'class X {}; enum RegularEnum {}; enum class ScopedEnum {};' Index: include/clang-c/Index.h =================================================================== --- include/clang-c/Index.h +++ include/clang-c/Index.h @@ -4418,6 +4418,12 @@ */ CINDEX_LINKAGE unsigned clang_CXXMethod_isVirtual(CXCursor C); +/** + * \brief Determine if a C++ record is abstract, i.e. whether a class or struct + * has a pure virtual member function. + */ +CINDEX_LINKAGE unsigned clang_CXXRecord_isAbstract(CXCursor C); + /** * \brief Determine if an enum declaration refers to a scoped enum. */ Index: test/Index/load-classes.cpp =================================================================== --- test/Index/load-classes.cpp +++ test/Index/load-classes.cpp @@ -29,7 +29,7 @@ } // RUN: c-index-test -test-load-source all %s | FileCheck %s -// CHECK: load-classes.cpp:3:8: StructDecl=X:3:8 (Definition) Extent=[3:1 - 26:2] +// CHECK: load-classes.cpp:3:8: StructDecl=X:3:8 (Definition) (abstract) Extent=[3:1 - 26:2] // CHECK: load-classes.cpp:4:3: CXXConstructor=X:4:3 (converting constructor) Extent=[4:3 - 4:15] [access=public] // FIXME: missing TypeRef in the constructor name // CHECK: load-classes.cpp:4:9: ParmDecl=value:4:9 (Definition) Extent=[4:5 - 4:14] Index: tools/c-index-test/c-index-test.c =================================================================== --- tools/c-index-test/c-index-test.c +++ tools/c-index-test/c-index-test.c @@ -804,6 +804,8 @@ printf(" (const)"); if (clang_CXXMethod_isPureVirtual(Cursor)) printf(" (pure)"); + if (clang_CXXRecord_isAbstract(Cursor)) + printf(" (abstract)"); if (clang_EnumDecl_isScoped(Cursor)) printf(" (scoped)"); if (clang_Cursor_isVariadic(Cursor)) Index: tools/libclang/CIndex.cpp =================================================================== --- tools/libclang/CIndex.cpp +++ tools/libclang/CIndex.cpp @@ -7846,6 +7846,17 @@ return (Method && Method->isVirtual()) ? 1 : 0; } +unsigned clang_CXXRecord_isAbstract(CXCursor C) { + if (!clang_isDeclaration(C.kind)) + return 0; + + const auto *D = cxcursor::getCursorDecl(C); + const auto *RD = dyn_cast_or_null(D); + if (RD) + RD = RD->getDefinition(); + return (RD && RD->isAbstract()) ? 1 : 0; +} + unsigned clang_EnumDecl_isScoped(CXCursor C) { if (!clang_isDeclaration(C.kind)) return 0; Index: tools/libclang/libclang.exports =================================================================== --- tools/libclang/libclang.exports +++ tools/libclang/libclang.exports @@ -12,6 +12,7 @@ clang_CXXMethod_isPureVirtual clang_CXXMethod_isStatic clang_CXXMethod_isVirtual +clang_CXXRecord_isAbstract clang_EnumDecl_isScoped clang_Cursor_getArgument clang_Cursor_getNumTemplateArguments