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Support for importing C++ base classes. (#5856)
For now, provide no support for virtual base classes and only minimal support for multiple inheritance.
This commit is contained in:
Richard Smith
@@ -180,65 +180,6 @@ fn MyF(bar : Cpp.Bar*) {
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}
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//@dump-sem-ir-end
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// ============================================================================
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// Inheritance static
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// ============================================================================
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// --- inheritance_static.h
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struct Bar1 {
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static auto foo1() -> void;
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};
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struct Bar2 : public Bar1 {
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static auto foo2() -> void;
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};
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// --- import_inheritance_static.carbon
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library "[[@TEST_NAME]]";
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import Cpp library "inheritance_static.h";
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fn MyF() {
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//@dump-sem-ir-begin
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Cpp.Bar1.foo1();
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Cpp.Bar2.foo1();
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Cpp.Bar2.foo2();
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//@dump-sem-ir-end
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}
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// ============================================================================
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// Inheritance pointers
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// ============================================================================
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// --- inheritance_pointers.h
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struct Bar1 {};
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struct Bar2 : public Bar1 {};
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// --- fail_todo_import_inheritance_pointers.carbon
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library "[[@TEST_NAME]]";
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import Cpp library "inheritance_pointers.h";
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//@dump-sem-ir-begin
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fn MyF1(bar: Cpp.Bar1*);
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// TODO: Support C++ inheritance.
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// CHECK:STDERR: fail_todo_import_inheritance_pointers.carbon:[[@LINE+10]]:33: error: cannot implicitly convert expression of type `Cpp.Bar2*` to `Cpp.Bar1*` [ConversionFailure]
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// CHECK:STDERR: fn MyF2(bar : Cpp.Bar2*) { MyF1(bar); }
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// CHECK:STDERR: ^~~
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// CHECK:STDERR: fail_todo_import_inheritance_pointers.carbon:[[@LINE+7]]:33: note: type `Cpp.Bar2*` does not implement interface `Core.ImplicitAs(Cpp.Bar1*)` [MissingImplInMemberAccessNote]
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// CHECK:STDERR: fn MyF2(bar : Cpp.Bar2*) { MyF1(bar); }
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// CHECK:STDERR: ^~~
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// CHECK:STDERR: fail_todo_import_inheritance_pointers.carbon:[[@LINE-8]]:9: note: initializing function parameter [InCallToFunctionParam]
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// CHECK:STDERR: fn MyF1(bar: Cpp.Bar1*);
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// CHECK:STDERR: ^~~~~~~~~~~~~~
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// CHECK:STDERR:
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fn MyF2(bar : Cpp.Bar2*) { MyF1(bar); }
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//@dump-sem-ir-end
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// ============================================================================
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// Dynamic
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// ============================================================================
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@@ -576,111 +517,6 @@ fn MyF(bar: Cpp.Bar*);
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// CHECK:STDOUT: return
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: --- import_inheritance_static.carbon
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// CHECK:STDOUT:
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// CHECK:STDOUT: constants {
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// CHECK:STDOUT: %empty_tuple.type: type = tuple_type () [concrete]
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// CHECK:STDOUT: %Bar1: type = class_type @Bar1 [concrete]
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// CHECK:STDOUT: %Bar1.foo1.type: type = fn_type @Bar1.foo1 [concrete]
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// CHECK:STDOUT: %Bar1.foo1: %Bar1.foo1.type = struct_value () [concrete]
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// CHECK:STDOUT: %Bar2: type = class_type @Bar2 [concrete]
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// CHECK:STDOUT: %Bar2.foo2.type: type = fn_type @Bar2.foo2 [concrete]
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// CHECK:STDOUT: %Bar2.foo2: %Bar2.foo2.type = struct_value () [concrete]
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: imports {
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// CHECK:STDOUT: %Cpp: <namespace> = namespace file.%Cpp.import_cpp, [concrete] {
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// CHECK:STDOUT: .Bar1 = %Bar1.decl
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// CHECK:STDOUT: .Bar2 = %Bar2.decl
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// CHECK:STDOUT: import Cpp//...
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// CHECK:STDOUT: }
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// CHECK:STDOUT: %Bar1.decl: type = class_decl @Bar1 [concrete = constants.%Bar1] {} {}
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// CHECK:STDOUT: %Bar1.foo1.decl: %Bar1.foo1.type = fn_decl @Bar1.foo1 [concrete = constants.%Bar1.foo1] {} {}
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// CHECK:STDOUT: %Bar2.decl: type = class_decl @Bar2 [concrete = constants.%Bar2] {} {}
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// CHECK:STDOUT: %Bar2.foo2.decl: %Bar2.foo2.type = fn_decl @Bar2.foo2 [concrete = constants.%Bar2.foo2] {} {}
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: fn @MyF() {
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// CHECK:STDOUT: !entry:
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// CHECK:STDOUT: %Cpp.ref.loc8: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
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// CHECK:STDOUT: %Bar1.ref: type = name_ref Bar1, imports.%Bar1.decl [concrete = constants.%Bar1]
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// CHECK:STDOUT: %foo1.ref.loc8: %Bar1.foo1.type = name_ref foo1, imports.%Bar1.foo1.decl [concrete = constants.%Bar1.foo1]
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// CHECK:STDOUT: %Bar1.foo1.call.loc8: init %empty_tuple.type = call %foo1.ref.loc8()
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// CHECK:STDOUT: %Cpp.ref.loc9: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
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// CHECK:STDOUT: %Bar2.ref.loc9: type = name_ref Bar2, imports.%Bar2.decl [concrete = constants.%Bar2]
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// CHECK:STDOUT: %foo1.ref.loc9: %Bar1.foo1.type = name_ref foo1, imports.%Bar1.foo1.decl [concrete = constants.%Bar1.foo1]
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// CHECK:STDOUT: %Bar1.foo1.call.loc9: init %empty_tuple.type = call %foo1.ref.loc9()
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// CHECK:STDOUT: %Cpp.ref.loc10: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
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// CHECK:STDOUT: %Bar2.ref.loc10: type = name_ref Bar2, imports.%Bar2.decl [concrete = constants.%Bar2]
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// CHECK:STDOUT: %foo2.ref: %Bar2.foo2.type = name_ref foo2, imports.%Bar2.foo2.decl [concrete = constants.%Bar2.foo2]
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// CHECK:STDOUT: %Bar2.foo2.call: init %empty_tuple.type = call %foo2.ref()
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// CHECK:STDOUT: <elided>
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: --- fail_todo_import_inheritance_pointers.carbon
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// CHECK:STDOUT:
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// CHECK:STDOUT: constants {
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// CHECK:STDOUT: %Bar1: type = class_type @Bar1 [concrete]
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// CHECK:STDOUT: %ptr.f68: type = ptr_type %Bar1 [concrete]
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// CHECK:STDOUT: %pattern_type.3cc: type = pattern_type %ptr.f68 [concrete]
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// CHECK:STDOUT: %MyF1.type: type = fn_type @MyF1 [concrete]
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// CHECK:STDOUT: %empty_tuple.type: type = tuple_type () [concrete]
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// CHECK:STDOUT: %MyF1: %MyF1.type = struct_value () [concrete]
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// CHECK:STDOUT: %Bar2: type = class_type @Bar2 [concrete]
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// CHECK:STDOUT: %ptr.eca: type = ptr_type %Bar2 [concrete]
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// CHECK:STDOUT: %pattern_type.92a: type = pattern_type %ptr.eca [concrete]
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// CHECK:STDOUT: %MyF2.type: type = fn_type @MyF2 [concrete]
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// CHECK:STDOUT: %MyF2: %MyF2.type = struct_value () [concrete]
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: imports {
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// CHECK:STDOUT: %Cpp: <namespace> = namespace file.%Cpp.import_cpp, [concrete] {
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// CHECK:STDOUT: .Bar1 = %Bar1.decl
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// CHECK:STDOUT: .Bar2 = %Bar2.decl
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// CHECK:STDOUT: import Cpp//...
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// CHECK:STDOUT: }
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// CHECK:STDOUT: %Bar1.decl: type = class_decl @Bar1 [concrete = constants.%Bar1] {} {}
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// CHECK:STDOUT: %Bar2.decl: type = class_decl @Bar2 [concrete = constants.%Bar2] {} {}
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: file {
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// CHECK:STDOUT: %MyF1.decl: %MyF1.type = fn_decl @MyF1 [concrete = constants.%MyF1] {
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// CHECK:STDOUT: %bar.patt: %pattern_type.3cc = binding_pattern bar [concrete]
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// CHECK:STDOUT: %bar.param_patt: %pattern_type.3cc = value_param_pattern %bar.patt, call_param0 [concrete]
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// CHECK:STDOUT: } {
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// CHECK:STDOUT: %bar.param: %ptr.f68 = value_param call_param0
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// CHECK:STDOUT: %.loc7: type = splice_block %ptr [concrete = constants.%ptr.f68] {
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// CHECK:STDOUT: %Cpp.ref: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
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// CHECK:STDOUT: %Bar1.ref: type = name_ref Bar1, imports.%Bar1.decl [concrete = constants.%Bar1]
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// CHECK:STDOUT: %ptr: type = ptr_type %Bar1.ref [concrete = constants.%ptr.f68]
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// CHECK:STDOUT: }
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// CHECK:STDOUT: %bar: %ptr.f68 = bind_name bar, %bar.param
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// CHECK:STDOUT: }
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// CHECK:STDOUT: %MyF2.decl: %MyF2.type = fn_decl @MyF2 [concrete = constants.%MyF2] {
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// CHECK:STDOUT: %bar.patt: %pattern_type.92a = binding_pattern bar [concrete]
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// CHECK:STDOUT: %bar.param_patt: %pattern_type.92a = value_param_pattern %bar.patt, call_param0 [concrete]
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// CHECK:STDOUT: } {
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// CHECK:STDOUT: %bar.param: %ptr.eca = value_param call_param0
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// CHECK:STDOUT: %.loc19_23: type = splice_block %ptr [concrete = constants.%ptr.eca] {
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// CHECK:STDOUT: %Cpp.ref: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
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// CHECK:STDOUT: %Bar2.ref: type = name_ref Bar2, imports.%Bar2.decl [concrete = constants.%Bar2]
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// CHECK:STDOUT: %ptr: type = ptr_type %Bar2.ref [concrete = constants.%ptr.eca]
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// CHECK:STDOUT: }
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// CHECK:STDOUT: %bar: %ptr.eca = bind_name bar, %bar.param
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// CHECK:STDOUT: }
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: fn @MyF1(%bar.param: %ptr.f68);
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// CHECK:STDOUT:
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// CHECK:STDOUT: fn @MyF2(%bar.param: %ptr.eca) {
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// CHECK:STDOUT: !entry:
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// CHECK:STDOUT: %MyF1.ref: %MyF1.type = name_ref MyF1, file.%MyF1.decl [concrete = constants.%MyF1]
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// CHECK:STDOUT: %bar.ref: %ptr.eca = name_ref bar, %bar
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// CHECK:STDOUT: %.loc19_33: %ptr.f68 = converted %bar.ref, <error> [concrete = <error>]
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// CHECK:STDOUT: %MyF1.call: init %empty_tuple.type = call %MyF1.ref(<error>)
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// CHECK:STDOUT: return
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: --- import_dynamic.carbon
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// CHECK:STDOUT:
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// CHECK:STDOUT: constants {
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