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Support for calling C++ destructors. (#6453)

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Synthesize an impl of `Destroy` for C++ classes in response to impl
lookup.
This commit is contained in:
Richard Smith
2025-12-09 21:03:27 +00:00
committed by GitHub
parent 2d38978756
commit c7cd24e1b2
28 changed files with 923 additions and 923 deletions
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toolchain/check/testdata/interop/cpp/function/default_arg.carbon
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+22 -39
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@@ -195,10 +195,8 @@ fn Call() {
// CHECK:STDOUT: %ptr.1f9: type = ptr_type %X [concrete]
// CHECK:STDOUT: %D__carbon_thunk.type: type = fn_type @D__carbon_thunk [concrete]
// CHECK:STDOUT: %D__carbon_thunk: %D__carbon_thunk.type = struct_value () [concrete]
// CHECK:STDOUT: %type_where: type = facet_type <type where .Self impls <CanDestroy>> [concrete]
// CHECK:STDOUT: %facet_value: %type_where = facet_value %X, () [concrete]
// CHECK:STDOUT: %DestroyT.binding.as_type.as.Destroy.impl.Op.type.4f5: type = fn_type @DestroyT.binding.as_type.as.Destroy.impl.Op, @DestroyT.binding.as_type.as.Destroy.impl(%facet_value) [concrete]
// CHECK:STDOUT: %DestroyT.binding.as_type.as.Destroy.impl.Op.357: %DestroyT.binding.as_type.as.Destroy.impl.Op.type.4f5 = struct_value () [concrete]
// CHECK:STDOUT: %X.cpp_destructor.type: type = fn_type @X.cpp_destructor [concrete]
// CHECK:STDOUT: %X.cpp_destructor: %X.cpp_destructor.type = struct_value () [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
@@ -404,14 +402,10 @@ fn Call() {
// CHECK:STDOUT: %.loc12_7.3: ref %X = value_as_ref %.loc12_7.2
// CHECK:STDOUT: %addr: %ptr.1f9 = addr_of %.loc12_7.3
// CHECK:STDOUT: %D__carbon_thunk.call: init %empty_tuple.type = call imports.%D__carbon_thunk.decl(%addr, %.loc12_19.2, %.loc12_22.2)
// CHECK:STDOUT: %DestroyT.binding.as_type.as.Destroy.impl.Op.bound.loc12: <bound method> = bound_method %.loc12_5.4, constants.%DestroyT.binding.as_type.as.Destroy.impl.Op.357
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: %bound_method.loc12_5: <bound method> = bound_method %.loc12_5.4, %DestroyT.binding.as_type.as.Destroy.impl.Op.specific_fn.1
// CHECK:STDOUT: %DestroyT.binding.as_type.as.Destroy.impl.Op.call.loc12: init %empty_tuple.type = call %bound_method.loc12_5(%.loc12_5.4)
// CHECK:STDOUT: %DestroyT.binding.as_type.as.Destroy.impl.Op.bound.loc10: <bound method> = bound_method %.loc10_5.4, constants.%DestroyT.binding.as_type.as.Destroy.impl.Op.357
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: %bound_method.loc10_5: <bound method> = bound_method %.loc10_5.4, %DestroyT.binding.as_type.as.Destroy.impl.Op.specific_fn.2
// CHECK:STDOUT: %DestroyT.binding.as_type.as.Destroy.impl.Op.call.loc10: init %empty_tuple.type = call %bound_method.loc10_5(%.loc10_5.4)
// CHECK:STDOUT: %X.cpp_destructor.bound.loc12: <bound method> = bound_method %.loc12_5.4, constants.%X.cpp_destructor
// CHECK:STDOUT: %X.cpp_destructor.call.loc12: init %empty_tuple.type = call %X.cpp_destructor.bound.loc12(%.loc12_5.4)
// CHECK:STDOUT: %X.cpp_destructor.bound.loc10: <bound method> = bound_method %.loc10_5.4, constants.%X.cpp_destructor
// CHECK:STDOUT: %X.cpp_destructor.call.loc10: init %empty_tuple.type = call %X.cpp_destructor.bound.loc10(%.loc10_5.4)
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: }
// CHECK:STDOUT:
@@ -482,11 +476,8 @@ fn Call() {
// CHECK:STDOUT: %D__carbon_thunk.type: type = fn_type @D__carbon_thunk [concrete]
// CHECK:STDOUT: %D__carbon_thunk: %D__carbon_thunk.type = struct_value () [concrete]
// CHECK:STDOUT: %Destroy.type: type = facet_type <@Destroy> [concrete]
// CHECK:STDOUT: %type_where: type = facet_type <type where .Self impls <CanDestroy>> [concrete]
// CHECK:STDOUT: %facet_value: %type_where = facet_value %X, () [concrete]
// CHECK:STDOUT: %DestroyT.binding.as_type.as.Destroy.impl.Op.type.4f5: type = fn_type @DestroyT.binding.as_type.as.Destroy.impl.Op, @DestroyT.binding.as_type.as.Destroy.impl(%facet_value) [concrete]
// CHECK:STDOUT: %DestroyT.binding.as_type.as.Destroy.impl.Op.357: %DestroyT.binding.as_type.as.Destroy.impl.Op.type.4f5 = struct_value () [concrete]
// CHECK:STDOUT: %DestroyT.binding.as_type.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %DestroyT.binding.as_type.as.Destroy.impl.Op.357, @DestroyT.binding.as_type.as.Destroy.impl.Op(%facet_value) [concrete]
// CHECK:STDOUT: %X.cpp_destructor.type: type = fn_type @X.cpp_destructor [concrete]
// CHECK:STDOUT: %X.cpp_destructor: %X.cpp_destructor.type = struct_value () [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
@@ -781,14 +772,10 @@ fn Call() {
// CHECK:STDOUT: %.loc13_7.3: ref %X = value_as_ref %.loc13_7.2
// CHECK:STDOUT: %addr: %ptr.1f9 = addr_of %.loc13_7.3
// CHECK:STDOUT: %D__carbon_thunk.call: init %empty_tuple.type = call imports.%D__carbon_thunk.decl(%addr, %.loc13_19.2)
// CHECK:STDOUT: %DestroyT.binding.as_type.as.Destroy.impl.Op.bound.loc13: <bound method> = bound_method %.loc13_5.4, constants.%DestroyT.binding.as_type.as.Destroy.impl.Op.357
// CHECK:STDOUT: %DestroyT.binding.as_type.as.Destroy.impl.Op.specific_fn.1: <specific function> = specific_function constants.%DestroyT.binding.as_type.as.Destroy.impl.Op.357, @DestroyT.binding.as_type.as.Destroy.impl.Op(constants.%facet_value) [concrete = constants.%DestroyT.binding.as_type.as.Destroy.impl.Op.specific_fn]
// CHECK:STDOUT: %bound_method.loc13_5: <bound method> = bound_method %.loc13_5.4, %DestroyT.binding.as_type.as.Destroy.impl.Op.specific_fn.1
// CHECK:STDOUT: %DestroyT.binding.as_type.as.Destroy.impl.Op.call.loc13: init %empty_tuple.type = call %bound_method.loc13_5(%.loc13_5.4)
// CHECK:STDOUT: %DestroyT.binding.as_type.as.Destroy.impl.Op.bound.loc11: <bound method> = bound_method %.loc11_5.4, constants.%DestroyT.binding.as_type.as.Destroy.impl.Op.357
// CHECK:STDOUT: %DestroyT.binding.as_type.as.Destroy.impl.Op.specific_fn.2: <specific function> = specific_function constants.%DestroyT.binding.as_type.as.Destroy.impl.Op.357, @DestroyT.binding.as_type.as.Destroy.impl.Op(constants.%facet_value) [concrete = constants.%DestroyT.binding.as_type.as.Destroy.impl.Op.specific_fn]
// CHECK:STDOUT: %bound_method.loc11_5: <bound method> = bound_method %.loc11_5.4, %DestroyT.binding.as_type.as.Destroy.impl.Op.specific_fn.2
// CHECK:STDOUT: %DestroyT.binding.as_type.as.Destroy.impl.Op.call.loc11: init %empty_tuple.type = call %bound_method.loc11_5(%.loc11_5.4)
// CHECK:STDOUT: %X.cpp_destructor.bound.loc13: <bound method> = bound_method %.loc13_5.4, constants.%X.cpp_destructor
// CHECK:STDOUT: %X.cpp_destructor.call.loc13: init %empty_tuple.type = call %X.cpp_destructor.bound.loc13(%.loc13_5.4)
// CHECK:STDOUT: %X.cpp_destructor.bound.loc11: <bound method> = bound_method %.loc11_5.4, constants.%X.cpp_destructor
// CHECK:STDOUT: %X.cpp_destructor.call.loc11: init %empty_tuple.type = call %X.cpp_destructor.bound.loc11(%.loc11_5.4)
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
@@ -816,6 +803,8 @@ fn Call() {
// CHECK:STDOUT:
// CHECK:STDOUT: fn @D__carbon_thunk(%_.param: %ptr.1f9, %a.param: %i32);
// CHECK:STDOUT:
// CHECK:STDOUT: fn @X.cpp_destructor(%self.param: %X);
// CHECK:STDOUT:
// CHECK:STDOUT: --- fail_call_too_few_args.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
@@ -835,10 +824,8 @@ fn Call() {
// CHECK:STDOUT: %X.C.cpp_overload_set.value: %X.C.cpp_overload_set.type = cpp_overload_set_value @X.C.cpp_overload_set [concrete]
// CHECK:STDOUT: %X.D.cpp_overload_set.type: type = cpp_overload_set_type @X.D.cpp_overload_set [concrete]
// CHECK:STDOUT: %X.D.cpp_overload_set.value: %X.D.cpp_overload_set.type = cpp_overload_set_value @X.D.cpp_overload_set [concrete]
// CHECK:STDOUT: %type_where: type = facet_type <type where .Self impls <CanDestroy>> [concrete]
// CHECK:STDOUT: %facet_value: %type_where = facet_value %X, () [concrete]
// CHECK:STDOUT: %DestroyT.binding.as_type.as.Destroy.impl.Op.type.4f5: type = fn_type @DestroyT.binding.as_type.as.Destroy.impl.Op, @DestroyT.binding.as_type.as.Destroy.impl(%facet_value) [concrete]
// CHECK:STDOUT: %DestroyT.binding.as_type.as.Destroy.impl.Op.357: %DestroyT.binding.as_type.as.Destroy.impl.Op.type.4f5 = struct_value () [concrete]
// CHECK:STDOUT: %X.cpp_destructor.type: type = fn_type @X.cpp_destructor [concrete]
// CHECK:STDOUT: %X.cpp_destructor: %X.cpp_destructor.type = struct_value () [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
@@ -876,7 +863,7 @@ fn Call() {
// CHECK:STDOUT: %.loc56_5.4: ref %X = temporary %.loc56_5.2, %.loc56_5.3
// CHECK:STDOUT: %.loc56_7: ref %X = converted %.loc56_5.1, %.loc56_5.4
// CHECK:STDOUT: %B.ref: %X.B.cpp_overload_set.type = name_ref B, imports.%X.B.cpp_overload_set.value [concrete = constants.%X.B.cpp_overload_set.value]
// CHECK:STDOUT: %bound_method.loc56_16: <bound method> = bound_method %.loc56_7, %B.ref
// CHECK:STDOUT: %bound_method.loc56: <bound method> = bound_method %.loc56_7, %B.ref
// CHECK:STDOUT: %Cpp.ref.loc66: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
// CHECK:STDOUT: %X.ref.loc66: type = name_ref X, imports.%X.decl [concrete = constants.%X]
// CHECK:STDOUT: %C.ref: %X.C.cpp_overload_set.type = name_ref C, imports.%X.C.cpp_overload_set.value [concrete = constants.%X.C.cpp_overload_set.value]
@@ -888,15 +875,11 @@ fn Call() {
// CHECK:STDOUT: %.loc76_5.4: ref %X = temporary %.loc76_5.2, %.loc76_5.3
// CHECK:STDOUT: %.loc76_7: ref %X = converted %.loc76_5.1, %.loc76_5.4
// CHECK:STDOUT: %D.ref: %X.D.cpp_overload_set.type = name_ref D, imports.%X.D.cpp_overload_set.value [concrete = constants.%X.D.cpp_overload_set.value]
// CHECK:STDOUT: %bound_method.loc76_16: <bound method> = bound_method %.loc76_7, %D.ref
// CHECK:STDOUT: %DestroyT.binding.as_type.as.Destroy.impl.Op.bound.loc76: <bound method> = bound_method %.loc76_5.4, constants.%DestroyT.binding.as_type.as.Destroy.impl.Op.357
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: %bound_method.loc76_5: <bound method> = bound_method %.loc76_5.4, %DestroyT.binding.as_type.as.Destroy.impl.Op.specific_fn.1
// CHECK:STDOUT: %DestroyT.binding.as_type.as.Destroy.impl.Op.call.loc76: init %empty_tuple.type = call %bound_method.loc76_5(%.loc76_5.4)
// CHECK:STDOUT: %DestroyT.binding.as_type.as.Destroy.impl.Op.bound.loc56: <bound method> = bound_method %.loc56_5.4, constants.%DestroyT.binding.as_type.as.Destroy.impl.Op.357
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: %bound_method.loc56_5: <bound method> = bound_method %.loc56_5.4, %DestroyT.binding.as_type.as.Destroy.impl.Op.specific_fn.2
// CHECK:STDOUT: %DestroyT.binding.as_type.as.Destroy.impl.Op.call.loc56: init %empty_tuple.type = call %bound_method.loc56_5(%.loc56_5.4)
// CHECK:STDOUT: %bound_method.loc76: <bound method> = bound_method %.loc76_7, %D.ref
// CHECK:STDOUT: %X.cpp_destructor.bound.loc76: <bound method> = bound_method %.loc76_5.4, constants.%X.cpp_destructor
// CHECK:STDOUT: %X.cpp_destructor.call.loc76: init %empty_tuple.type = call %X.cpp_destructor.bound.loc76(%.loc76_5.4)
// CHECK:STDOUT: %X.cpp_destructor.bound.loc56: <bound method> = bound_method %.loc56_5.4, constants.%X.cpp_destructor
// CHECK:STDOUT: %X.cpp_destructor.call.loc56: init %empty_tuple.type = call %X.cpp_destructor.bound.loc56(%.loc56_5.4)
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: }
// CHECK:STDOUT: