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cefa0397bb8771f3aef819887159439af6277f9c
carbon-lang/toolchain/check/testdata/interface/default_fn.carbon
T
Richard Smith cefa0397bb More fixes to package and library fingerprinting. (#7297) 
Fix import logic to make all imported packages be children of the
`NameScopeId::Package` scope. Previously, indirectly-imported packages
would end up as children of their importing package's scope, which
resulted in them not being treated as packages at all, and in particular
not being fingerprinted as packages.

Fixing that caused a failure in the fingerprinting logic as we started
to encounter packages with no correspoding import scopes. Instead of
looking for import scopes, use a simpler mechanism to map packages to
their package names, and clean up.

Unfortunately the latter change churns all the fingerprints again :(
Hopefully this is the last time for a while.
2026-06-04 17:41:46 +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: 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: 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: %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: %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: %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.903: type = fn_type @I.WithSelf.F, @I.WithSelf(%I.facet) [concrete]
// CHECK:STDOUT: %I.WithSelf.F.60d: %I.WithSelf.F.type.903 = struct_value () [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: %empty_struct: %empty_struct_type = struct_value () [concrete]
// CHECK:STDOUT: %C.val: %C = struct_value () [concrete]
// CHECK:STDOUT: %.66b: type = fn_type_with_self_type %I.WithSelf.F.type.903, %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: @I.WithSelf.F.%pattern_type (%pattern_type.492) = value_param_pattern [concrete]
// CHECK:STDOUT: %self.patt: @I.WithSelf.F.%pattern_type (%pattern_type.492) = at_binding_pattern self, %self.param_patt [concrete]
// CHECK:STDOUT: } {
// CHECK:STDOUT: %self.param: @I.WithSelf.F.%Self.as_type.loc18_23.1 (%Self.as_type.0fa) = value_param call_param0
// CHECK:STDOUT: %.loc18_23.1: type = splice_block %.loc18_23.2 [symbolic = %Self.as_type.loc18_23.1 (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_23.2: type = facet_access_type %Self.ref [symbolic = %Self.as_type.loc18_23.1 (constants.%Self.as_type.0fa)]
// CHECK:STDOUT: %.loc18_23.2: type = converted %Self.ref, %Self.as_type.loc18_23.2 [symbolic = %Self.as_type.loc18_23.1 (constants.%Self.as_type.0fa)]
// CHECK:STDOUT: }
// CHECK:STDOUT: %self: @I.WithSelf.F.%Self.as_type.loc18_23.1 (%Self.as_type.0fa) = value_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]
// CHECK:STDOUT: %self.patt: %pattern_type.98b = at_binding_pattern self, %self.param_patt [concrete]
// 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 = value_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: %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_23.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc18_23.1 (constants.%Self.as_type.0fa)]
// CHECK:STDOUT: %pattern_type: type = pattern_type %Self.as_type.loc18_23.1 [symbolic = %pattern_type (constants.%pattern_type.492)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: %require_complete: <witness> = require_complete_type %Self.as_type.loc18_23.1 [symbolic = %require_complete (constants.%require_complete)]
// CHECK:STDOUT:
// CHECK:STDOUT: fn(%self.param: @I.WithSelf.F.%Self.as_type.loc18_23.1 (%Self.as_type.0fa)) {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: name_binding_decl {
// 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: }
// CHECK:STDOUT: %c.var: ref %C = var %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 = ref_binding c, %c.var
// 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: %.66b = 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_23.1 => constants.%Self.as_type.0fa
// CHECK:STDOUT: %pattern_type => constants.%pattern_type.492
// 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.903
// CHECK:STDOUT: %I.WithSelf.F => constants.%I.WithSelf.F.60d
// 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_23.1 => constants.%C
// CHECK:STDOUT: %pattern_type => constants.%pattern_type.98b
// CHECK:STDOUT: }
// CHECK:STDOUT:
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