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d21cc3197ffdd00a69358b1d68ce377e5ac2ad08
carbon-lang/toolchain/check/testdata/interface/default_fn.carbon
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Geoff Romer d21cc3197f Fix the textual IR name of WrapperBindingPattern (#7650) 
`at_binding_pattern` is a relic from an earlier revision of #6930.
2026-08-18 22:31:27 +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/convert.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/interface/default_fn.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/interface/default_fn.carbon
class C {
interface I {
// TODO: Use `default` here.
fn F(unused self) {
// I and F are both complete here, and the impl below is in scope.
var c: C = {};
c.(I.F)();
}
}
impl C as I {
fn F(unused self) {}
}
}
// CHECK:STDOUT: --- default_fn.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %C: type = class_type @C [concrete]
// CHECK:STDOUT: %I.type: type = facet_type <@I> [concrete]
// CHECK:STDOUT: %Self.4e9: %I.type = symbolic_binding Self, 0 [symbolic]
// CHECK:STDOUT: %Self.as_type.0fa: type = facet_access_type %Self.4e9 [symbolic]
// CHECK:STDOUT: %pattern_type.492: type = pattern_type %Self.as_type.0fa [symbolic]
// CHECK:STDOUT: %self.param_patt.55d: %pattern_type.492 = value_param_pattern [symbolic]
// CHECK:STDOUT: %self.patt.ce2: %pattern_type.492 = wrapper_binding_pattern self, %self.param_patt.55d [symbolic]
// CHECK:STDOUT: %I.WithSelf.F.type.933: type = fn_type @I.WithSelf.F, @I.WithSelf(%Self.4e9) [symbolic]
// CHECK:STDOUT: %empty_tuple.type: type = tuple_type () [concrete]
// CHECK:STDOUT: %I.WithSelf.F.02a: %I.WithSelf.F.type.933 = struct_value () [symbolic]
// CHECK:STDOUT: %I.assoc_type: type = assoc_entity_type @I [concrete]
// CHECK:STDOUT: %assoc0.08d: %I.assoc_type = assoc_entity element0, @I.WithSelf.%I.WithSelf.F.decl [concrete]
// CHECK:STDOUT: %.c3e: <witness> = impl_self_witness %C, @I [concrete]
// CHECK:STDOUT: %I.impl_witness: <witness> = impl_witness @C.as.I.impl.%I.impl_witness_table [concrete]
// CHECK:STDOUT: %pattern_type.98b: type = pattern_type %C [concrete]
// CHECK:STDOUT: %self.param_patt.303: %pattern_type.98b = value_param_pattern [concrete]
// CHECK:STDOUT: %self.patt.36a3f7.1: %pattern_type.98b = wrapper_binding_pattern self, %self.param_patt.303 [concrete]
// CHECK:STDOUT: %C.as.I.impl.F.type: type = fn_type @C.as.I.impl.F [concrete]
// CHECK:STDOUT: %C.as.I.impl.F: %C.as.I.impl.F.type = struct_value () [concrete]
// CHECK:STDOUT: %I.facet: %I.type = facet_value %C, (%I.impl_witness) [concrete]
// CHECK:STDOUT: %I.WithSelf.F.type.684: type = fn_type @I.WithSelf.F, @I.WithSelf(%I.facet) [concrete]
// CHECK:STDOUT: %I.WithSelf.F.ee1: %I.WithSelf.F.type.684 = struct_value () [concrete]
// CHECK:STDOUT: %self.patt.36a3f7.2: %pattern_type.98b = wrapper_binding_pattern self, %self.param_patt.303 [concrete]
// CHECK:STDOUT: %empty_struct_type: type = struct_type {} [concrete]
// CHECK:STDOUT: %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
// CHECK:STDOUT: %require_complete: <witness> = require_complete_type %Self.as_type.0fa [symbolic]
// CHECK:STDOUT: %c.patt: %pattern_type.98b = ref_binding_pattern c [concrete]
// CHECK:STDOUT: %c.var_patt: %pattern_type.98b = var_pattern %c.patt [concrete]
// CHECK:STDOUT: %empty_struct: %empty_struct_type = struct_value () [concrete]
// CHECK:STDOUT: %C.val: %C = struct_value () [concrete]
// CHECK:STDOUT: %.938: type = fn_type_with_self_type %I.WithSelf.F.type.684, %I.facet [concrete]
// CHECK:STDOUT: %Destroy.type: type = facet_type <@Destroy> [concrete]
// CHECK:STDOUT: %Destroy.Op.type.1d8f74.2: type = fn_type @Destroy.Op.loc20_7.2 [concrete]
// CHECK:STDOUT: %Destroy.Op.1a2547.2: %Destroy.Op.type.1d8f74.2 = struct_value () [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: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
// CHECK:STDOUT: .Core = imports.%Core
// CHECK:STDOUT: .C = %C.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core.import = import Core
// CHECK:STDOUT: %C.decl: type = class_decl @C [concrete = constants.%C] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: interface @I {
// CHECK:STDOUT: %Self: %I.type = symbolic_binding Self, 0 [symbolic = constants.%Self.4e9]
// CHECK:STDOUT: %I.WithSelf.decl = interface_with_self_decl @I [concrete]
// CHECK:STDOUT:
// CHECK:STDOUT: !with Self:
// CHECK:STDOUT: %I.WithSelf.F.decl: @I.WithSelf.%I.WithSelf.F.type (%I.WithSelf.F.type.933) = fn_decl @I.WithSelf.F [symbolic = @I.WithSelf.%I.WithSelf.F (constants.%I.WithSelf.F.02a)] {
// CHECK:STDOUT: %self.param_patt.loc18_17.1: @I.WithSelf.F.%pattern_type (%pattern_type.492) = value_param_pattern [symbolic = %self.param_patt.loc18_17.2 (constants.%self.param_patt.55d)]
// CHECK:STDOUT: %self.patt.loc18_17.1: @I.WithSelf.F.%pattern_type (%pattern_type.492) = wrapper_binding_pattern self, %self.param_patt.loc18_17.1 [symbolic = %self.patt.loc18_17.2 (constants.%self.patt.ce2)]
// CHECK:STDOUT: } {
// CHECK:STDOUT: %self.param: @I.WithSelf.F.%Self.as_type.loc18_17.1 (%Self.as_type.0fa) = value_param call_param0
// CHECK:STDOUT: %.loc18_17.1: type = splice_block %.loc18_17.2 [symbolic = %Self.as_type.loc18_17.1 (constants.%Self.as_type.0fa)] {
// CHECK:STDOUT: %Self.ref: %I.type = name_ref Self, @I.%Self [symbolic = %Self (constants.%Self.4e9)]
// CHECK:STDOUT: %Self.as_type.loc18_17.2: type = facet_access_type %Self.ref [symbolic = %Self.as_type.loc18_17.1 (constants.%Self.as_type.0fa)]
// CHECK:STDOUT: %.loc18_17.2: type = converted %Self.ref, %Self.as_type.loc18_17.2 [symbolic = %Self.as_type.loc18_17.1 (constants.%Self.as_type.0fa)]
// CHECK:STDOUT: }
// CHECK:STDOUT: %self: @I.WithSelf.F.%Self.as_type.loc18_17.1 (%Self.as_type.0fa) = wrapper_binding self, %self.param
// CHECK:STDOUT: }
// CHECK:STDOUT: %assoc0: %I.assoc_type = assoc_entity element0, %I.WithSelf.F.decl [concrete = constants.%assoc0.08d]
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = %Self
// CHECK:STDOUT: .C = <poisoned>
// CHECK:STDOUT: .I = <poisoned>
// CHECK:STDOUT: .F = @I.WithSelf.%assoc0
// CHECK:STDOUT: .C = <poisoned>
// CHECK:STDOUT: .I = <poisoned>
// CHECK:STDOUT: witness = (@I.WithSelf.%I.WithSelf.F.decl)
// CHECK:STDOUT:
// CHECK:STDOUT: !requires:
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl @C.as.I.impl: %C.ref as %I.ref {
// CHECK:STDOUT: %C.as.I.impl.F.decl: %C.as.I.impl.F.type = fn_decl @C.as.I.impl.F [concrete = constants.%C.as.I.impl.F] {
// CHECK:STDOUT: %self.param_patt: %pattern_type.98b = value_param_pattern [concrete = constants.%self.param_patt.303]
// CHECK:STDOUT: %self.patt: %pattern_type.98b = wrapper_binding_pattern self, %self.param_patt [concrete = constants.%self.patt.36a3f7.1]
// CHECK:STDOUT: } {
// CHECK:STDOUT: %self.param: %C = value_param call_param0
// CHECK:STDOUT: %Self.ref: type = name_ref Self, @C.as.I.impl.%C.ref [concrete = constants.%C]
// CHECK:STDOUT: %self: %C = wrapper_binding self, %self.param
// CHECK:STDOUT: }
// CHECK:STDOUT: %I.impl_witness_table = impl_witness_table (%C.as.I.impl.F.decl), @C.as.I.impl [concrete]
// CHECK:STDOUT: %I.impl_witness: <witness> = impl_witness %I.impl_witness_table [concrete = constants.%I.impl_witness]
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .F = %C.as.I.impl.F.decl
// CHECK:STDOUT: extend %I.ref
// CHECK:STDOUT: witness = %I.impl_witness
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @C {
// CHECK:STDOUT: %I.decl: type = interface_decl @I [concrete = constants.%I.type] {} {}
// CHECK:STDOUT: impl_decl @C.as.I.impl [concrete] {} {
// CHECK:STDOUT: %C.ref: type = name_ref C, file.%C.decl [concrete = constants.%C]
// CHECK:STDOUT: %I.ref: type = name_ref I, @C.%I.decl [concrete = constants.%I.type]
// CHECK:STDOUT: }
// CHECK:STDOUT: %.loc25: <witness> = impl_self_witness @C.as.I.impl.%C.ref, @I [concrete = constants.%.c3e]
// CHECK:STDOUT: %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
// CHECK:STDOUT: complete_type_witness = %complete_type
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = constants.%C
// CHECK:STDOUT: .I = %I.decl
// CHECK:STDOUT: .C = <poisoned>
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic fn @I.WithSelf.F(@I.%Self: %I.type) {
// CHECK:STDOUT: %Self: %I.type = symbolic_binding Self, 0 [symbolic = %Self (constants.%Self.4e9)]
// CHECK:STDOUT: %Self.as_type.loc18_17.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc18_17.1 (constants.%Self.as_type.0fa)]
// CHECK:STDOUT: %pattern_type: type = pattern_type %Self.as_type.loc18_17.1 [symbolic = %pattern_type (constants.%pattern_type.492)]
// CHECK:STDOUT: %self.param_patt.loc18_17.2: @I.WithSelf.F.%pattern_type (%pattern_type.492) = value_param_pattern [symbolic = %self.param_patt.loc18_17.2 (constants.%self.param_patt.55d)]
// CHECK:STDOUT: %self.patt.loc18_17.2: @I.WithSelf.F.%pattern_type (%pattern_type.492) = wrapper_binding_pattern self, %self.param_patt.loc18_17.2 [symbolic = %self.patt.loc18_17.2 (constants.%self.patt.ce2)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: %require_complete: <witness> = require_complete_type %Self.as_type.loc18_17.1 [symbolic = %require_complete (constants.%require_complete)]
// CHECK:STDOUT:
// CHECK:STDOUT: fn(%self.param: @I.WithSelf.F.%Self.as_type.loc18_17.1 (%Self.as_type.0fa)) {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %c.var: ref %C = var_storage %c.var_patt
// CHECK:STDOUT: %.loc20_19.1: %empty_struct_type = struct_literal () [concrete = constants.%empty_struct]
// CHECK:STDOUT: %.loc20_19.2: init %C to %c.var = class_init () [concrete = constants.%C.val]
// CHECK:STDOUT: %.loc20_7: init %C = converted %.loc20_19.1, %.loc20_19.2 [concrete = constants.%C.val]
// CHECK:STDOUT: assign %c.var, %.loc20_7
// CHECK:STDOUT: %C.ref: type = name_ref C, file.%C.decl [concrete = constants.%C]
// CHECK:STDOUT: %c: ref %C = wrapper_binding c, %c.var
// CHECK:STDOUT: name_binding_decl {
// CHECK:STDOUT: %c.patt: %pattern_type.98b = ref_binding_pattern c [concrete = constants.%c.patt]
// CHECK:STDOUT: %c.var_patt: %pattern_type.98b = var_pattern %c.patt [concrete = constants.%c.var_patt]
// CHECK:STDOUT: }
// CHECK:STDOUT: %c.ref: ref %C = name_ref c, %c
// CHECK:STDOUT: %I.ref: type = name_ref I, @C.%I.decl [concrete = constants.%I.type]
// CHECK:STDOUT: %F.ref: %I.assoc_type = name_ref F, @I.WithSelf.%assoc0 [concrete = constants.%assoc0.08d]
// CHECK:STDOUT: %impl.elem0: %.938 = impl_witness_access constants.%I.impl_witness, element0 [concrete = constants.%C.as.I.impl.F]
// CHECK:STDOUT: %bound_method: <bound method> = bound_method %c.ref, %impl.elem0
// CHECK:STDOUT: %.loc21: %C = acquire_value %c.ref
// CHECK:STDOUT: %C.as.I.impl.F.call: init %empty_tuple.type = call %bound_method(%.loc21)
// CHECK:STDOUT: %Destroy.Op.bound: <bound method> = bound_method %c.var, constants.%Destroy.Op.1a2547.2
// CHECK:STDOUT: %Destroy.Op.call: init %empty_tuple.type = call %Destroy.Op.bound(%c.var)
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @C.as.I.impl.F(%self.param: %C) {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Destroy.Op.loc20_7.1(%self.param: ref %empty_struct_type) = "no_op";
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Destroy.Op.loc20_7.2(%self.param: ref %C) {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @I.WithSelf(constants.%Self.4e9) {
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: %Self => constants.%Self.4e9
// CHECK:STDOUT: %I.WithSelf.F.type => constants.%I.WithSelf.F.type.933
// CHECK:STDOUT: %I.WithSelf.F => constants.%I.WithSelf.F.02a
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @I.WithSelf.F(constants.%Self.4e9) {
// CHECK:STDOUT: %Self => constants.%Self.4e9
// CHECK:STDOUT: %Self.as_type.loc18_17.1 => constants.%Self.as_type.0fa
// CHECK:STDOUT: %pattern_type => constants.%pattern_type.492
// CHECK:STDOUT: %self.param_patt.loc18_17.2 => constants.%self.param_patt.55d
// CHECK:STDOUT: %self.patt.loc18_17.2 => constants.%self.patt.ce2
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @I.WithSelf(constants.%I.facet) {
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: %Self => constants.%I.facet
// CHECK:STDOUT: %I.WithSelf.F.type => constants.%I.WithSelf.F.type.684
// CHECK:STDOUT: %I.WithSelf.F => constants.%I.WithSelf.F.ee1
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @I.WithSelf.F(constants.%I.facet) {
// CHECK:STDOUT: %Self => constants.%I.facet
// CHECK:STDOUT: %Self.as_type.loc18_17.1 => constants.%C
// CHECK:STDOUT: %pattern_type => constants.%pattern_type.98b
// CHECK:STDOUT: %self.param_patt.loc18_17.2 => constants.%self.param_patt.303
// CHECK:STDOUT: %self.patt.loc18_17.2 => constants.%self.patt.36a3f7.2
// CHECK:STDOUT: }
// CHECK:STDOUT:
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