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carbon-lang/toolchain/check/testdata/impl/fail_extend_impl_scope.carbon
T
Jon Ross-Perkins 4aa62bf5cd Switch Destroy to addr self (#5748) 
Pointed out by zygoloid on #toolchain, just taking care of this now.
2025-06-28 00:50:47 +00:00

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// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
// Exceptions. See /LICENSE for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
// INCLUDE-FILE: toolchain/testing/testdata/min_prelude/destroy.carbon
// TODO: Add ranges and switch to "--dump-sem-ir-ranges=only".
// EXTRA-ARGS: --dump-sem-ir-ranges=if-present
//
// AUTOUPDATE
// TIP: To test this file alone, run:
// TIP: bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/check/testdata/impl/fail_extend_impl_scope.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/impl/fail_extend_impl_scope.carbon
// --- fail_extend_impl_file_scope.carbon
library "[[@TEST_NAME]]";
interface I {}
// CHECK:STDERR: fail_extend_impl_file_scope.carbon:[[@LINE+4]]:1: error: `extend impl` can only be used in a class [ExtendImplOutsideClass]
// CHECK:STDERR: extend impl () as I {}
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~~
// CHECK:STDERR:
extend impl () as I {}
// --- fail_extend_impl_function_scope.carbon
library "[[@TEST_NAME]]";
interface J {}
fn F() {
// CHECK:STDERR: fail_extend_impl_function_scope.carbon:[[@LINE+4]]:3: error: `extend impl` can only be used in a class [ExtendImplOutsideClass]
// CHECK:STDERR: extend impl {} as J {}
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~~
// CHECK:STDERR:
extend impl {} as J {}
}
// --- fail_extend_impl_self_interface.carbon
library "[[@TEST_NAME]]";
interface Z {
fn Zero();
// CHECK:STDERR: fail_extend_impl_self_interface.carbon:[[@LINE+4]]:15: error: `impl as` can only be used in a class [ImplAsOutsideClass]
// CHECK:STDERR: extend impl as Z {
// CHECK:STDERR: ^~
// CHECK:STDERR:
extend impl as Z {
fn Zero() {}
}
}
class Point {
extend impl as Z {
fn Zero() {}
}
}
fn F() {
// Even if the `extend impl` is diagnosed above, we must not add the impl of
// the interface to itself in a way that allows it to be used during impl
// lookup, or we end up with infinite impl lookup recursion here.
({} as Point).Zero();
}
// CHECK:STDOUT: --- fail_extend_impl_file_scope.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %I.type: type = facet_type <@I> [concrete]
// CHECK:STDOUT: %Self: %I.type = bind_symbolic_name Self, 0 [symbolic]
// CHECK:STDOUT: %empty_tuple.type: type = tuple_type () [concrete]
// CHECK:STDOUT: %I.impl_witness: <witness> = impl_witness file.%I.impl_witness_table [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Core: <namespace> = namespace file.%Core.import, [concrete] {
// CHECK:STDOUT: import Core//prelude
// CHECK:STDOUT: import Core//prelude/...
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
// CHECK:STDOUT: .Core = imports.%Core
// CHECK:STDOUT: .I = %I.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core.import = import Core
// CHECK:STDOUT: %I.decl: type = interface_decl @I [concrete = constants.%I.type] {} {}
// CHECK:STDOUT: impl_decl @impl [concrete] {} {
// CHECK:STDOUT: %.loc9_14.1: %empty_tuple.type = tuple_literal ()
// CHECK:STDOUT: %.loc9_14.2: type = converted %.loc9_14.1, constants.%empty_tuple.type [concrete = constants.%empty_tuple.type]
// CHECK:STDOUT: %I.ref: type = name_ref I, file.%I.decl [concrete = constants.%I.type]
// CHECK:STDOUT: }
// CHECK:STDOUT: %I.impl_witness_table = impl_witness_table (), @impl [concrete]
// CHECK:STDOUT: %I.impl_witness: <witness> = impl_witness %I.impl_witness_table [concrete = constants.%I.impl_witness]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: interface @I {
// CHECK:STDOUT: %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self]
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = %Self
// CHECK:STDOUT: witness = ()
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl @impl: %.loc9_14.2 as %I.ref {
// CHECK:STDOUT: !members:
// CHECK:STDOUT: witness = <error>
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- fail_extend_impl_function_scope.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %J.type: type = facet_type <@J> [concrete]
// CHECK:STDOUT: %Self: %J.type = bind_symbolic_name Self, 0 [symbolic]
// CHECK:STDOUT: %F.type: type = fn_type @F [concrete]
// CHECK:STDOUT: %F: %F.type = struct_value () [concrete]
// CHECK:STDOUT: %empty_struct_type: type = struct_type {} [concrete]
// CHECK:STDOUT: %J.impl_witness: <witness> = impl_witness @F.%J.impl_witness_table [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Core: <namespace> = namespace file.%Core.import, [concrete] {
// CHECK:STDOUT: import Core//prelude
// CHECK:STDOUT: import Core//prelude/...
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
// CHECK:STDOUT: .Core = imports.%Core
// CHECK:STDOUT: .J = %J.decl
// CHECK:STDOUT: .F = %F.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core.import = import Core
// CHECK:STDOUT: %J.decl: type = interface_decl @J [concrete = constants.%J.type] {} {}
// CHECK:STDOUT: %F.decl: %F.type = fn_decl @F [concrete = constants.%F] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: interface @J {
// CHECK:STDOUT: %Self: %J.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self]
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = %Self
// CHECK:STDOUT: witness = ()
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl @impl: %.loc10_16.2 as %J.ref {
// CHECK:STDOUT: !members:
// CHECK:STDOUT: witness = <error>
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @F() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: impl_decl @impl [concrete] {} {
// CHECK:STDOUT: %.loc10_16.1: %empty_struct_type = struct_literal ()
// CHECK:STDOUT: %.loc10_16.2: type = converted %.loc10_16.1, constants.%empty_struct_type [concrete = constants.%empty_struct_type]
// CHECK:STDOUT: %J.ref: type = name_ref J, file.%J.decl [concrete = constants.%J.type]
// CHECK:STDOUT: }
// CHECK:STDOUT: %J.impl_witness_table = impl_witness_table (), @impl [concrete]
// CHECK:STDOUT: %J.impl_witness: <witness> = impl_witness %J.impl_witness_table [concrete = constants.%J.impl_witness]
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- fail_extend_impl_self_interface.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %Z.type: type = facet_type <@Z> [concrete]
// CHECK:STDOUT: %Self.6e6: %Z.type = bind_symbolic_name Self, 0 [symbolic]
// CHECK:STDOUT: %Zero.type.822: type = fn_type @Zero.1 [concrete]
// CHECK:STDOUT: %empty_tuple.type: type = tuple_type () [concrete]
// CHECK:STDOUT: %Zero.d14: %Zero.type.822 = struct_value () [concrete]
// CHECK:STDOUT: %Z.assoc_type: type = assoc_entity_type @Z [concrete]
// CHECK:STDOUT: %assoc0.534: %Z.assoc_type = assoc_entity element0, @Z.%Zero.decl [concrete]
// CHECK:STDOUT: %Zero.type.db4: type = fn_type @Zero.2, @impl.6b5(%Self.6e6) [symbolic]
// CHECK:STDOUT: %Zero.8fb: %Zero.type.db4 = struct_value () [symbolic]
// CHECK:STDOUT: %Point: type = class_type @Point [concrete]
// CHECK:STDOUT: %Z.impl_witness: <witness> = impl_witness @Point.%Z.impl_witness_table [concrete]
// CHECK:STDOUT: %Zero.type.e33: type = fn_type @Zero.3 [concrete]
// CHECK:STDOUT: %Zero.dec: %Zero.type.e33 = struct_value () [concrete]
// CHECK:STDOUT: %Z.facet: %Z.type = facet_value %Point, (%Z.impl_witness) [concrete]
// CHECK:STDOUT: %empty_struct_type: type = struct_type {} [concrete]
// CHECK:STDOUT: %complete_type.357: <witness> = complete_type_witness %empty_struct_type [concrete]
// CHECK:STDOUT: %F.type: type = fn_type @F [concrete]
// CHECK:STDOUT: %F: %F.type = struct_value () [concrete]
// CHECK:STDOUT: %Point.val: %Point = struct_value () [concrete]
// CHECK:STDOUT: %.766: type = fn_type_with_self_type %Zero.type.822, %Z.facet [concrete]
// CHECK:STDOUT: %Destroy.type: type = facet_type <@Destroy> [concrete]
// CHECK:STDOUT: %Op.type.bae: type = fn_type @Op.1 [concrete]
// CHECK:STDOUT: %T: type = bind_symbolic_name T, 0 [symbolic]
// CHECK:STDOUT: %Op.type.bc9: type = fn_type @Op.2, @impl.49c(%T) [symbolic]
// CHECK:STDOUT: %Op.46f: %Op.type.bc9 = struct_value () [symbolic]
// CHECK:STDOUT: %Destroy.impl_witness.ea4: <witness> = impl_witness imports.%Destroy.impl_witness_table, @impl.49c(%Point) [concrete]
// CHECK:STDOUT: %Op.type.003: type = fn_type @Op.2, @impl.49c(%Point) [concrete]
// CHECK:STDOUT: %Op.d2d: %Op.type.003 = struct_value () [concrete]
// CHECK:STDOUT: %ptr.536: type = ptr_type %Point [concrete]
// CHECK:STDOUT: %Destroy.facet: %Destroy.type = facet_value %Point, (%Destroy.impl_witness.ea4) [concrete]
// CHECK:STDOUT: %.038: type = fn_type_with_self_type %Op.type.bae, %Destroy.facet [concrete]
// CHECK:STDOUT: %Op.specific_fn: <specific function> = specific_function %Op.d2d, @Op.2(%Point) [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Core: <namespace> = namespace file.%Core.import, [concrete] {
// CHECK:STDOUT: .Destroy = %Core.Destroy
// CHECK:STDOUT: import Core//prelude
// CHECK:STDOUT: import Core//prelude/...
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
// CHECK:STDOUT: %Core.import_ref.0b9: @impl.49c.%Op.type (%Op.type.bc9) = import_ref Core//prelude/parts/destroy, loc8_29, loaded [symbolic = @impl.49c.%Op (constants.%Op.46f)]
// CHECK:STDOUT: %Destroy.impl_witness_table = impl_witness_table (%Core.import_ref.0b9), @impl.49c [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
// CHECK:STDOUT: .Core = imports.%Core
// CHECK:STDOUT: .Z = %Z.decl
// CHECK:STDOUT: .Point = %Point.decl
// CHECK:STDOUT: .F = %F.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core.import = import Core
// CHECK:STDOUT: %Z.decl: type = interface_decl @Z [concrete = constants.%Z.type] {} {}
// CHECK:STDOUT: %Point.decl: type = class_decl @Point [concrete = constants.%Point] {} {}
// CHECK:STDOUT: %F.decl: %F.type = fn_decl @F [concrete = constants.%F] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: interface @Z {
// CHECK:STDOUT: %Self: %Z.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.6e6]
// CHECK:STDOUT: %Zero.decl: %Zero.type.822 = fn_decl @Zero.1 [concrete = constants.%Zero.d14] {} {}
// CHECK:STDOUT: %assoc0: %Z.assoc_type = assoc_entity element0, %Zero.decl [concrete = constants.%assoc0.534]
// CHECK:STDOUT: impl_decl @impl.6b5 [concrete] {} {
// CHECK:STDOUT: %Self.ref: type = name_ref Self, <error> [concrete = <error>]
// CHECK:STDOUT: %Z.ref: type = name_ref Z, file.%Z.decl [concrete = constants.%Z.type]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = %Self
// CHECK:STDOUT: .Zero = %assoc0
// CHECK:STDOUT: .Z = <poisoned>
// CHECK:STDOUT: witness = (%Zero.decl)
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic impl @impl.6b5(@Z.%Self: %Z.type) {
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: %Self: %Z.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.6e6)]
// CHECK:STDOUT: %Zero.type: type = fn_type @Zero.2, @impl.6b5(%Self) [symbolic = %Zero.type (constants.%Zero.type.db4)]
// CHECK:STDOUT: %Zero: @impl.6b5.%Zero.type (%Zero.type.db4) = struct_value () [symbolic = %Zero (constants.%Zero.8fb)]
// CHECK:STDOUT:
// CHECK:STDOUT: impl: %Self.ref as %Z.ref {
// CHECK:STDOUT: %Zero.decl: @impl.6b5.%Zero.type (%Zero.type.db4) = fn_decl @Zero.2 [symbolic = @impl.6b5.%Zero (constants.%Zero.8fb)] {} {}
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Zero = %Zero.decl
// CHECK:STDOUT: witness = <error>
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl @impl.c94: %Self.ref as %Z.ref {
// CHECK:STDOUT: %Zero.decl: %Zero.type.e33 = fn_decl @Zero.3 [concrete = constants.%Zero.dec] {} {}
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Zero = %Zero.decl
// CHECK:STDOUT: witness = @Point.%Z.impl_witness
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @Point {
// CHECK:STDOUT: impl_decl @impl.c94 [concrete] {} {
// CHECK:STDOUT: %Self.ref: type = name_ref Self, constants.%Point [concrete = constants.%Point]
// CHECK:STDOUT: %Z.ref: type = name_ref Z, file.%Z.decl [concrete = constants.%Z.type]
// CHECK:STDOUT: }
// CHECK:STDOUT: %Z.impl_witness_table = impl_witness_table (@impl.c94.%Zero.decl), @impl.c94 [concrete]
// CHECK:STDOUT: %Z.impl_witness: <witness> = impl_witness %Z.impl_witness_table [concrete = constants.%Z.impl_witness]
// CHECK:STDOUT: %empty_struct_type: type = struct_type {} [concrete = constants.%empty_struct_type]
// CHECK:STDOUT: %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete = constants.%complete_type.357]
// CHECK:STDOUT: complete_type_witness = %complete_type
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = constants.%Point
// CHECK:STDOUT: .Z = <poisoned>
// CHECK:STDOUT: .Zero = <poisoned>
// CHECK:STDOUT: extend @impl.c94.%Z.ref
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic fn @Zero.1(@Z.%Self: %Z.type) {
// CHECK:STDOUT: fn();
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic fn @Zero.2(@Z.%Self: %Z.type) {
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:
// CHECK:STDOUT: fn() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Zero.3() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @F() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %.loc25_5.1: %empty_struct_type = struct_literal ()
// CHECK:STDOUT: %Point.ref: type = name_ref Point, file.%Point.decl [concrete = constants.%Point]
// CHECK:STDOUT: %.loc25_5.2: ref %Point = temporary_storage
// CHECK:STDOUT: %.loc25_5.3: init %Point = class_init (), %.loc25_5.2 [concrete = constants.%Point.val]
// CHECK:STDOUT: %.loc25_5.4: ref %Point = temporary %.loc25_5.2, %.loc25_5.3
// CHECK:STDOUT: %.loc25_7: ref %Point = converted %.loc25_5.1, %.loc25_5.4
// CHECK:STDOUT: %Zero.ref: %Z.assoc_type = name_ref Zero, @Z.%assoc0 [concrete = constants.%assoc0.534]
// CHECK:STDOUT: %impl.elem0.loc25_16: %.766 = impl_witness_access constants.%Z.impl_witness, element0 [concrete = constants.%Zero.dec]
// CHECK:STDOUT: %Zero.call: init %empty_tuple.type = call %impl.elem0.loc25_16()
// CHECK:STDOUT: %impl.elem0.loc25_5: %.038 = impl_witness_access constants.%Destroy.impl_witness.ea4, element0 [concrete = constants.%Op.d2d]
// CHECK:STDOUT: %bound_method.loc25_5.1: <bound method> = bound_method %.loc25_5.2, %impl.elem0.loc25_5
// CHECK:STDOUT: %specific_fn: <specific function> = specific_function %impl.elem0.loc25_5, @Op.2(constants.%Point) [concrete = constants.%Op.specific_fn]
// CHECK:STDOUT: %bound_method.loc25_5.2: <bound method> = bound_method %.loc25_5.2, %specific_fn
// CHECK:STDOUT: %addr: %ptr.536 = addr_of %.loc25_5.2
// CHECK:STDOUT: %no_op: init %empty_tuple.type = call %bound_method.loc25_5.2(%addr)
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Zero.1(constants.%Self.6e6) {}
// CHECK:STDOUT:
// CHECK:STDOUT: specific @impl.6b5(constants.%Self.6e6) {
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: %Self => constants.%Self.6e6
// CHECK:STDOUT: %Zero.type => constants.%Zero.type.db4
// CHECK:STDOUT: %Zero => constants.%Zero.8fb
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Zero.2(constants.%Self.6e6) {}
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Zero.1(constants.%Z.facet) {}
// CHECK:STDOUT:
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