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carbon-lang/toolchain/check/testdata/class/init_nested.carbon
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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/int.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/class/init_nested.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/class/init_nested.carbon
class Inner {
var a: i32;
var b: i32;
}
fn MakeInner() -> Inner;
class Outer {
var c: Inner;
var d: Inner;
}
fn MakeOuter() -> Outer {
return {.c = MakeInner(), .d = MakeInner()};
}
// CHECK:STDOUT: --- init_nested.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %Inner: type = class_type @Inner [concrete]
// CHECK:STDOUT: %int_32: Core.IntLiteral = int_value 32 [concrete]
// CHECK:STDOUT: %Int.type: type = generic_class_type @Int [concrete]
// CHECK:STDOUT: %Int.generic: %Int.type = struct_value () [concrete]
// CHECK:STDOUT: %i32: type = class_type @Int, @Int(%int_32) [concrete]
// CHECK:STDOUT: %Inner.elem: type = unbound_element_type %Inner, %i32 [concrete]
// CHECK:STDOUT: %struct_type.a.b: type = struct_type {.a: %i32, .b: %i32} [concrete]
// CHECK:STDOUT: %complete_type.f58: <witness> = complete_type_witness %struct_type.a.b [concrete]
// CHECK:STDOUT: %.dcf: Core.Form = init_form %Inner [concrete]
// CHECK:STDOUT: %pattern_type.a87: type = pattern_type %Inner [concrete]
// CHECK:STDOUT: %MakeInner.type: type = fn_type @MakeInner [concrete]
// CHECK:STDOUT: %MakeInner: %MakeInner.type = struct_value () [concrete]
// CHECK:STDOUT: %Outer: type = class_type @Outer [concrete]
// CHECK:STDOUT: %Outer.elem: type = unbound_element_type %Outer, %Inner [concrete]
// CHECK:STDOUT: %struct_type.c.d.182: type = struct_type {.c: %Inner, .d: %Inner} [concrete]
// CHECK:STDOUT: %complete_type.08e: <witness> = complete_type_witness %struct_type.c.d.182 [concrete]
// CHECK:STDOUT: %.88a: Core.Form = init_form %Outer [concrete]
// CHECK:STDOUT: %pattern_type.9b6: type = pattern_type %Outer [concrete]
// CHECK:STDOUT: %MakeOuter.type: type = fn_type @MakeOuter [concrete]
// CHECK:STDOUT: %MakeOuter: %MakeOuter.type = struct_value () [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Core: <namespace> = namespace file.%Core.import, [concrete] {
// CHECK:STDOUT: .Int = %Core.Int
// CHECK:STDOUT: import Core//prelude
// CHECK:STDOUT: import Core//prelude/...
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
// CHECK:STDOUT: .Core = imports.%Core
// CHECK:STDOUT: .Inner = %Inner.decl
// CHECK:STDOUT: .MakeInner = %MakeInner.decl
// CHECK:STDOUT: .Outer = %Outer.decl
// CHECK:STDOUT: .MakeOuter = %MakeOuter.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core.import = import Core
// CHECK:STDOUT: %Inner.decl: type = class_decl @Inner [concrete = constants.%Inner] {} {}
// CHECK:STDOUT: %MakeInner.decl: %MakeInner.type = fn_decl @MakeInner [concrete = constants.%MakeInner] {
// CHECK:STDOUT: %return.param_patt: %pattern_type.a87 = out_param_pattern [concrete]
// CHECK:STDOUT: %return.patt: %pattern_type.a87 = return_slot_pattern %return.param_patt, %Inner.ref [concrete]
// CHECK:STDOUT: } {
// CHECK:STDOUT: %Inner.ref: type = name_ref Inner, file.%Inner.decl [concrete = constants.%Inner]
// CHECK:STDOUT: %.loc20: Core.Form = init_form %Inner.ref [concrete = constants.%.dcf]
// CHECK:STDOUT: %return.param: ref %Inner = out_param call_param0
// CHECK:STDOUT: %return: ref %Inner = return_slot %return.param
// CHECK:STDOUT: }
// CHECK:STDOUT: %Outer.decl: type = class_decl @Outer [concrete = constants.%Outer] {} {}
// CHECK:STDOUT: %MakeOuter.decl: %MakeOuter.type = fn_decl @MakeOuter [concrete = constants.%MakeOuter] {
// CHECK:STDOUT: %return.param_patt: %pattern_type.9b6 = out_param_pattern [concrete]
// CHECK:STDOUT: %return.patt: %pattern_type.9b6 = return_slot_pattern %return.param_patt, %Outer.ref [concrete]
// CHECK:STDOUT: } {
// CHECK:STDOUT: %Outer.ref: type = name_ref Outer, file.%Outer.decl [concrete = constants.%Outer]
// CHECK:STDOUT: %.loc27: Core.Form = init_form %Outer.ref [concrete = constants.%.88a]
// CHECK:STDOUT: %return.param: ref %Outer = out_param call_param0
// CHECK:STDOUT: %return: ref %Outer = return_slot %return.param
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @Inner {
// CHECK:STDOUT: %.loc16: %Inner.elem = field_decl a, element0 [concrete]
// CHECK:STDOUT: %.loc17: %Inner.elem = field_decl b, element1 [concrete]
// CHECK:STDOUT: %complete_type: <witness> = complete_type_witness constants.%struct_type.a.b [concrete = constants.%complete_type.f58]
// CHECK:STDOUT: complete_type_witness = %complete_type
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = constants.%Inner
// CHECK:STDOUT: .a = %.loc16
// CHECK:STDOUT: .b = %.loc17
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @Outer {
// CHECK:STDOUT: %.loc23: %Outer.elem = field_decl c, element0 [concrete]
// CHECK:STDOUT: %.loc24: %Outer.elem = field_decl d, element1 [concrete]
// CHECK:STDOUT: %complete_type: <witness> = complete_type_witness constants.%struct_type.c.d.182 [concrete = constants.%complete_type.08e]
// CHECK:STDOUT: complete_type_witness = %complete_type
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = constants.%Outer
// CHECK:STDOUT: .Inner = <poisoned>
// CHECK:STDOUT: .c = %.loc23
// CHECK:STDOUT: .d = %.loc24
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @MakeInner() -> out %return.param: %Inner;
// CHECK:STDOUT:
// CHECK:STDOUT: fn @MakeOuter() -> out %return.param: %Outer {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %MakeInner.ref.loc28_16: %MakeInner.type = name_ref MakeInner, file.%MakeInner.decl [concrete = constants.%MakeInner]
// CHECK:STDOUT: %.loc28_45.1: ref %Inner = class_element_access %return.param, element0
// CHECK:STDOUT: %MakeInner.call.loc28_26: init %Inner to %.loc28_45.1 = call %MakeInner.ref.loc28_16()
// CHECK:STDOUT: %MakeInner.ref.loc28_34: %MakeInner.type = name_ref MakeInner, file.%MakeInner.decl [concrete = constants.%MakeInner]
// CHECK:STDOUT: %.loc28_45.2: ref %Inner = class_element_access %return.param, element1
// CHECK:STDOUT: %MakeInner.call.loc28_44: init %Inner to %.loc28_45.2 = call %MakeInner.ref.loc28_34()
// CHECK:STDOUT: %.loc28_45.3: %struct_type.c.d.182 = struct_literal (%MakeInner.call.loc28_26, %MakeInner.call.loc28_44)
// CHECK:STDOUT: %.loc28_45.4: init %Outer to %return.param = class_init (%MakeInner.call.loc28_26, %MakeInner.call.loc28_44)
// CHECK:STDOUT: %.loc28_46: init %Outer = converted %.loc28_45.3, %.loc28_45.4
// CHECK:STDOUT: return %.loc28_46 to %return.param
// CHECK:STDOUT: }
// CHECK:STDOUT:
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