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carbon-lang/toolchain/check/testdata/interface/assoc_const_in_generic.carbon
T
Richard Smith 05cc09daca Fix cross-package signature mismatches. (#7232) 
Fixes link failures when referencing a symbol involving a fingerprint
from a different package.

Previously we included the `Namespace`'s `import_id` as part of its
fingerprint, which caused local and imported namespaces to get different
fingerprints. We now store the `import_id` on the `NameScope` instead of
on the `Namespace` inst to avoid this problem.

Also, when we reach a package-level `NameScopeId`, consistently
fingerprint it as a (package name, library name) pair. Previously the
fingerprinting depended on whether it was imported or not, as an
imported `NameScopeId` had a parent scope (the current package). We need
to include the library name here so that private entities with the same
name in different libraries have different fingerprints.
2026-05-21 00:02:29 +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/none.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/assoc_const_in_generic.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/interface/assoc_const_in_generic.carbon
interface I(T:! type) {
fn F(U:! type) -> U;
}
fn G(T:! type) {
// This should not result in a `fn_decl` instruction being added to the eval
// block for the generic G. This used to crash when printing formatted SemIR
// because the same instruction ended up in multiple scopes.
I(T).F;
}
fn H() {
G({});
}
// CHECK:STDOUT: --- assoc_const_in_generic.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %type: type = facet_type <type> [concrete]
// CHECK:STDOUT: %.Self: %type = symbolic_binding .Self [symbolic_self]
// CHECK:STDOUT: %pattern_type.98f: type = pattern_type type [concrete]
// CHECK:STDOUT: %T: type = symbolic_binding T, 0 [symbolic]
// CHECK:STDOUT: %I.type.a64: type = generic_interface_type @I [concrete]
// CHECK:STDOUT: %empty_tuple.type: type = tuple_type () [concrete]
// CHECK:STDOUT: %I.generic: %I.type.a64 = struct_value () [concrete]
// CHECK:STDOUT: %I.type.e27: type = facet_type <@I, @I(%T)> [symbolic]
// CHECK:STDOUT: %Self.2f0: %I.type.e27 = symbolic_binding Self, 1 [symbolic]
// CHECK:STDOUT: %U: type = symbolic_binding U, 2 [symbolic]
// CHECK:STDOUT: %.a6b: Core.Form = init_form %U [symbolic]
// CHECK:STDOUT: %pattern_type.62e: type = pattern_type %U [symbolic]
// CHECK:STDOUT: %I.WithSelf.F.type.416: type = fn_type @I.WithSelf.F, @I.WithSelf(%T, %Self.2f0) [symbolic]
// CHECK:STDOUT: %I.WithSelf.F.80f: %I.WithSelf.F.type.416 = struct_value () [symbolic]
// CHECK:STDOUT: %I.assoc_type.157: type = assoc_entity_type @I, @I(%T) [symbolic]
// CHECK:STDOUT: %assoc0.619: %I.assoc_type.157 = assoc_entity element0, @I.WithSelf.%I.WithSelf.F.decl [symbolic]
// CHECK:STDOUT: %G.type: type = fn_type @G [concrete]
// CHECK:STDOUT: %G: %G.type = struct_value () [concrete]
// CHECK:STDOUT: %require_complete: <witness> = require_complete_type %I.type.e27 [symbolic]
// CHECK:STDOUT: %H.type: type = fn_type @H [concrete]
// CHECK:STDOUT: %H: %H.type = struct_value () [concrete]
// CHECK:STDOUT: %empty_struct_type: type = struct_type {} [concrete]
// CHECK:STDOUT: %empty_struct: %empty_struct_type = struct_value () [concrete]
// CHECK:STDOUT: %G.specific_fn: <specific function> = specific_function %G, @G(%empty_struct_type) [concrete]
// CHECK:STDOUT: %I.type.eeb: type = facet_type <@I, @I(%empty_struct_type)> [concrete]
// CHECK:STDOUT: %Self.756: %I.type.eeb = symbolic_binding Self, 1 [symbolic]
// CHECK:STDOUT: %I.WithSelf.F.type.c9d: type = fn_type @I.WithSelf.F, @I.WithSelf(%empty_struct_type, %Self.2f0) [symbolic]
// CHECK:STDOUT: %I.WithSelf.F.d7d: %I.WithSelf.F.type.c9d = struct_value () [symbolic]
// CHECK:STDOUT: %I.assoc_type.408: type = assoc_entity_type @I, @I(%empty_struct_type) [concrete]
// CHECK:STDOUT: %assoc0.8ce: %I.assoc_type.408 = assoc_entity element0, @I.WithSelf.%I.WithSelf.F.decl [concrete]
// CHECK:STDOUT: %complete_type: <witness> = complete_type_witness %I.type.eeb [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
// CHECK:STDOUT: .I = %I.decl
// CHECK:STDOUT: .G = %G.decl
// CHECK:STDOUT: .H = %H.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: %I.decl: %I.type.a64 = interface_decl @I [concrete = constants.%I.generic] {
// CHECK:STDOUT: %T.patt: %pattern_type.98f = symbolic_binding_pattern T, 0 [concrete]
// CHECK:STDOUT: } {
// CHECK:STDOUT: %.loc15_17.1: type = splice_block %.loc15_17.2 [concrete = type] {
// CHECK:STDOUT: %.Self: %type = symbolic_binding .Self [symbolic_self = constants.%.Self]
// CHECK:STDOUT: %.loc15_17.2: type = type_literal type [concrete = type]
// CHECK:STDOUT: }
// CHECK:STDOUT: %T.loc15_14.2: type = symbolic_binding T, 0 [symbolic = %T.loc15_14.1 (constants.%T)]
// CHECK:STDOUT: }
// CHECK:STDOUT: %G.decl: %G.type = fn_decl @G [concrete = constants.%G] {
// CHECK:STDOUT: %T.patt: %pattern_type.98f = symbolic_binding_pattern T, 0 [concrete]
// CHECK:STDOUT: } {
// CHECK:STDOUT: %.loc19_10.1: type = splice_block %.loc19_10.2 [concrete = type] {
// CHECK:STDOUT: %.Self: %type = symbolic_binding .Self [symbolic_self = constants.%.Self]
// CHECK:STDOUT: %.loc19_10.2: type = type_literal type [concrete = type]
// CHECK:STDOUT: }
// CHECK:STDOUT: %T.loc19_7.2: type = symbolic_binding T, 0 [symbolic = %T.loc19_7.1 (constants.%T)]
// CHECK:STDOUT: }
// CHECK:STDOUT: %H.decl: %H.type = fn_decl @H [concrete = constants.%H] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic interface @I(%T.loc15_14.2: type) {
// CHECK:STDOUT: %T.loc15_14.1: type = symbolic_binding T, 0 [symbolic = %T.loc15_14.1 (constants.%T)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: %I.type: type = facet_type <@I, @I(%T.loc15_14.1)> [symbolic = %I.type (constants.%I.type.e27)]
// CHECK:STDOUT: %Self.loc15_23.2: @I.%I.type (%I.type.e27) = symbolic_binding Self, 1 [symbolic = %Self.loc15_23.2 (constants.%Self.2f0)]
// CHECK:STDOUT:
// CHECK:STDOUT: interface {
// CHECK:STDOUT: %Self.loc15_23.1: @I.%I.type (%I.type.e27) = symbolic_binding Self, 1 [symbolic = %Self.loc15_23.2 (constants.%Self.2f0)]
// 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.416) = fn_decl @I.WithSelf.F [symbolic = @I.WithSelf.%I.WithSelf.F (constants.%I.WithSelf.F.80f)] {
// CHECK:STDOUT: %U.patt: %pattern_type.98f = symbolic_binding_pattern U, 2 [concrete]
// CHECK:STDOUT: %return.param_patt: @I.WithSelf.F.%pattern_type (%pattern_type.62e) = out_param_pattern [concrete]
// CHECK:STDOUT: %return.patt: @I.WithSelf.F.%pattern_type (%pattern_type.62e) = return_slot_pattern %return.param_patt, %U.ref [concrete]
// CHECK:STDOUT: } {
// CHECK:STDOUT: %U.ref: type = name_ref U, %U.loc16_9.2 [symbolic = %U.loc16_9.1 (constants.%U)]
// CHECK:STDOUT: %.loc16_21.2: Core.Form = init_form %U.ref [symbolic = %.loc16_21.1 (constants.%.a6b)]
// CHECK:STDOUT: %.loc16_12.1: type = splice_block %.loc16_12.2 [concrete = type] {
// CHECK:STDOUT: %.Self: %type = symbolic_binding .Self [symbolic_self = constants.%.Self]
// CHECK:STDOUT: %.loc16_12.2: type = type_literal type [concrete = type]
// CHECK:STDOUT: }
// CHECK:STDOUT: %U.loc16_9.2: type = symbolic_binding U, 2 [symbolic = %U.loc16_9.1 (constants.%U)]
// CHECK:STDOUT: %return.param: ref @I.WithSelf.F.%U.loc16_9.1 (%U) = out_param call_param0
// CHECK:STDOUT: %return: ref @I.WithSelf.F.%U.loc16_9.1 (%U) = return_slot %return.param
// CHECK:STDOUT: }
// CHECK:STDOUT: %assoc0.loc16_22.1: @I.WithSelf.%I.assoc_type (%I.assoc_type.157) = assoc_entity element0, %I.WithSelf.F.decl [symbolic = %assoc0.loc16_22.2 (constants.%assoc0.619)]
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = %Self.loc15_23.1
// CHECK:STDOUT: .F = @I.WithSelf.%assoc0.loc16_22.1
// CHECK:STDOUT: witness = (@I.WithSelf.%I.WithSelf.F.decl)
// CHECK:STDOUT:
// CHECK:STDOUT: !requires:
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic fn @I.WithSelf.F(@I.%T.loc15_14.2: type, @I.%Self.loc15_23.1: @I.%I.type (%I.type.e27), %U.loc16_9.2: type) {
// CHECK:STDOUT: %U.loc16_9.1: type = symbolic_binding U, 2 [symbolic = %U.loc16_9.1 (constants.%U)]
// CHECK:STDOUT: %.loc16_21.1: Core.Form = init_form %U.loc16_9.1 [symbolic = %.loc16_21.1 (constants.%.a6b)]
// CHECK:STDOUT: %pattern_type: type = pattern_type %U.loc16_9.1 [symbolic = %pattern_type (constants.%pattern_type.62e)]
// CHECK:STDOUT:
// CHECK:STDOUT: fn() -> out %return.param: @I.WithSelf.F.%U.loc16_9.1 (%U);
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic fn @G(%T.loc19_7.2: type) {
// CHECK:STDOUT: %T.loc19_7.1: type = symbolic_binding T, 0 [symbolic = %T.loc19_7.1 (constants.%T)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: %I.type.loc23_6.2: type = facet_type <@I, @I(%T.loc19_7.1)> [symbolic = %I.type.loc23_6.2 (constants.%I.type.e27)]
// CHECK:STDOUT: %require_complete: <witness> = require_complete_type %I.type.loc23_6.2 [symbolic = %require_complete (constants.%require_complete)]
// CHECK:STDOUT: %I.assoc_type: type = assoc_entity_type @I, @I(%T.loc19_7.1) [symbolic = %I.assoc_type (constants.%I.assoc_type.157)]
// CHECK:STDOUT: %assoc0: @G.%I.assoc_type (%I.assoc_type.157) = assoc_entity element0, @I.WithSelf.%I.WithSelf.F.decl [symbolic = %assoc0 (constants.%assoc0.619)]
// CHECK:STDOUT:
// CHECK:STDOUT: fn() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %I.ref: %I.type.a64 = name_ref I, file.%I.decl [concrete = constants.%I.generic]
// CHECK:STDOUT: %T.ref: type = name_ref T, %T.loc19_7.2 [symbolic = %T.loc19_7.1 (constants.%T)]
// CHECK:STDOUT: %I.type.loc23_6.1: type = facet_type <@I, @I(constants.%T)> [symbolic = %I.type.loc23_6.2 (constants.%I.type.e27)]
// CHECK:STDOUT: %.loc23: @G.%I.assoc_type (%I.assoc_type.157) = specific_constant @I.WithSelf.%assoc0.loc16_22.1, @I.WithSelf(constants.%T, constants.%Self.2f0) [symbolic = %assoc0 (constants.%assoc0.619)]
// CHECK:STDOUT: %F.ref: @G.%I.assoc_type (%I.assoc_type.157) = name_ref F, %.loc23 [symbolic = %assoc0 (constants.%assoc0.619)]
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @H() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %G.ref: %G.type = name_ref G, file.%G.decl [concrete = constants.%G]
// CHECK:STDOUT: %.loc27_6: %empty_struct_type = struct_literal () [concrete = constants.%empty_struct]
// CHECK:STDOUT: %.loc27_7: type = converted %.loc27_6, constants.%empty_struct_type [concrete = constants.%empty_struct_type]
// CHECK:STDOUT: %G.specific_fn: <specific function> = specific_function %G.ref, @G(constants.%empty_struct_type) [concrete = constants.%G.specific_fn]
// CHECK:STDOUT: %G.call: init %empty_tuple.type = call %G.specific_fn()
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @I(constants.%T) {
// CHECK:STDOUT: %T.loc15_14.1 => constants.%T
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: %I.type => constants.%I.type.e27
// CHECK:STDOUT: %Self.loc15_23.2 => constants.%Self.2f0
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @I.WithSelf(constants.%T, constants.%Self.2f0) {
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: %T => constants.%T
// CHECK:STDOUT: %I.type => constants.%I.type.e27
// CHECK:STDOUT: %Self => constants.%Self.2f0
// CHECK:STDOUT: %I.WithSelf.F.type => constants.%I.WithSelf.F.type.416
// CHECK:STDOUT: %I.WithSelf.F => constants.%I.WithSelf.F.80f
// CHECK:STDOUT: %I.assoc_type => constants.%I.assoc_type.157
// CHECK:STDOUT: %assoc0.loc16_22.2 => constants.%assoc0.619
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @I.WithSelf.F(constants.%T, constants.%Self.2f0, constants.%U) {
// CHECK:STDOUT: %U.loc16_9.1 => constants.%U
// CHECK:STDOUT: %.loc16_21.1 => constants.%.a6b
// CHECK:STDOUT: %pattern_type => constants.%pattern_type.62e
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @G(constants.%T) {
// CHECK:STDOUT: %T.loc19_7.1 => constants.%T
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @G(constants.%empty_struct_type) {
// CHECK:STDOUT: %T.loc19_7.1 => constants.%empty_struct_type
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: %I.type.loc23_6.2 => constants.%I.type.eeb
// CHECK:STDOUT: %require_complete => constants.%complete_type
// CHECK:STDOUT: %I.assoc_type => constants.%I.assoc_type.408
// CHECK:STDOUT: %assoc0 => constants.%assoc0.8ce
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @I(constants.%empty_struct_type) {
// CHECK:STDOUT: %T.loc15_14.1 => constants.%empty_struct_type
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: %I.type => constants.%I.type.eeb
// CHECK:STDOUT: %Self.loc15_23.2 => constants.%Self.756
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @I.WithSelf(constants.%empty_struct_type, constants.%Self.2f0) {
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: %T => constants.%empty_struct_type
// CHECK:STDOUT: %I.type => constants.%I.type.eeb
// CHECK:STDOUT: %Self => constants.%Self.2f0
// CHECK:STDOUT: %I.WithSelf.F.type => constants.%I.WithSelf.F.type.c9d
// CHECK:STDOUT: %I.WithSelf.F => constants.%I.WithSelf.F.d7d
// CHECK:STDOUT: %I.assoc_type => constants.%I.assoc_type.408
// CHECK:STDOUT: %assoc0.loc16_22.2 => constants.%assoc0.8ce
// CHECK:STDOUT: }
// CHECK:STDOUT:
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