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carbon-lang/toolchain/check/testdata/class/scope.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/scope.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/class/scope.carbon
class Class {
fn F() -> i32 {
return 1;
}
fn G() -> i32 {
return F();
}
}
fn F() -> i32 {
return 2;
}
fn Run() {
var unused a: i32 = F();
var unused b: i32 = Class.F();
}
// CHECK:STDOUT: --- scope.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %Class: type = class_type @Class [concrete]
// CHECK:STDOUT: %int_32: Core.IntLiteral = int_value 32 [concrete]
// CHECK:STDOUT: %Int.type: type = generic_class_type @Int [concrete]
// CHECK:STDOUT: %empty_tuple.type: type = tuple_type () [concrete]
// CHECK:STDOUT: %Int.generic: %Int.type = struct_value () [concrete]
// CHECK:STDOUT: %i32: type = class_type @Int, @Int(%int_32) [concrete]
// CHECK:STDOUT: %.70c: Core.Form = init_form %i32 [concrete]
// CHECK:STDOUT: %pattern_type.c6b: type = pattern_type %i32 [concrete]
// CHECK:STDOUT: %Class.F.type: type = fn_type @Class.F [concrete]
// CHECK:STDOUT: %Class.F: %Class.F.type = struct_value () [concrete]
// CHECK:STDOUT: %Class.G.type: type = fn_type @Class.G [concrete]
// CHECK:STDOUT: %Class.G: %Class.G.type = struct_value () [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: %i32.builtin: type = int_type signed, %int_32 [concrete]
// CHECK:STDOUT: %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
// CHECK:STDOUT: %ImplicitAs.type.649: type = generic_interface_type @ImplicitAs [concrete]
// CHECK:STDOUT: %ImplicitAs.generic: %ImplicitAs.type.649 = struct_value () [concrete]
// CHECK:STDOUT: %ImplicitAs.type.544: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
// CHECK:STDOUT: %To: Core.IntLiteral = symbolic_binding To, 0 [symbolic]
// CHECK:STDOUT: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.766: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
// CHECK:STDOUT: %Core.IntLiteral.as.ImplicitAs.impl.Convert.ec3: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.766 = struct_value () [symbolic]
// CHECK:STDOUT: %ImplicitAs.impl_witness.fb6: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.1a5, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
// CHECK:STDOUT: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.ef7: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
// CHECK:STDOUT: %Core.IntLiteral.as.ImplicitAs.impl.Convert.e6b: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.ef7 = struct_value () [concrete]
// CHECK:STDOUT: %ImplicitAs.facet: %ImplicitAs.type.544 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.fb6) [concrete]
// CHECK:STDOUT: %ImplicitAs.WithSelf.Convert.type.367: type = fn_type @ImplicitAs.WithSelf.Convert, @ImplicitAs.WithSelf(%i32, %ImplicitAs.facet) [concrete]
// CHECK:STDOUT: %.205: type = fn_type_with_self_type %ImplicitAs.WithSelf.Convert.type.367, %ImplicitAs.facet [concrete]
// CHECK:STDOUT: %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.c0d: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.e6b [concrete]
// CHECK:STDOUT: %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.e6b, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
// CHECK:STDOUT: %bound_method.33d: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
// CHECK:STDOUT: %int_1.d5e: %i32 = int_value 1 [concrete]
// CHECK:STDOUT: %F.type: type = fn_type @F [concrete]
// CHECK:STDOUT: %F: %F.type = struct_value () [concrete]
// CHECK:STDOUT: %int_2.ecc: Core.IntLiteral = int_value 2 [concrete]
// CHECK:STDOUT: %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.22e: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.e6b [concrete]
// CHECK:STDOUT: %bound_method.cc3: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
// CHECK:STDOUT: %int_2.4ff: %i32 = int_value 2 [concrete]
// CHECK:STDOUT: %Run.type: type = fn_type @Run [concrete]
// CHECK:STDOUT: %Run: %Run.type = struct_value () [concrete]
// CHECK:STDOUT: %Destroy.type: type = facet_type <@Destroy> [concrete]
// CHECK:STDOUT: %Destroy.Op.type.af7ec0.2: type = fn_type @Destroy.Op.loc31_3.2 [concrete]
// CHECK:STDOUT: %Destroy.Op.1dc86d.2: %Destroy.Op.type.af7ec0.2 = 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: .ImplicitAs = %Core.ImplicitAs
// CHECK:STDOUT: .Destroy = %Core.Destroy
// 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: %Core.ImplicitAs: %ImplicitAs.type.649 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
// CHECK:STDOUT: %Core.import_ref.dd3: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.766) = import_ref Core//prelude/parts/int, loc{{\d+_\d+}}, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.ec3)]
// CHECK:STDOUT: %ImplicitAs.impl_witness_table.1a5 = impl_witness_table (%Core.import_ref.dd3), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
// 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: .Class = %Class.decl
// CHECK:STDOUT: .F = %F.decl
// CHECK:STDOUT: .Run = %Run.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core.import = import Core
// CHECK:STDOUT: %Class.decl: type = class_decl @Class [concrete = constants.%Class] {} {}
// CHECK:STDOUT: %F.decl: %F.type = fn_decl @F [concrete = constants.%F] {
// CHECK:STDOUT: %return.param_patt: %pattern_type.c6b = out_param_pattern [concrete]
// CHECK:STDOUT: %return.patt: %pattern_type.c6b = return_slot_pattern %return.param_patt, %i32 [concrete]
// CHECK:STDOUT: } {
// CHECK:STDOUT: %i32: type = type_literal constants.%i32 [concrete = constants.%i32]
// CHECK:STDOUT: %.loc25: Core.Form = init_form %i32 [concrete = constants.%.70c]
// CHECK:STDOUT: %return.param: ref %i32 = out_param call_param0
// CHECK:STDOUT: %return: ref %i32 = return_slot %return.param
// CHECK:STDOUT: }
// CHECK:STDOUT: %Run.decl: %Run.type = fn_decl @Run [concrete = constants.%Run] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @Class {
// CHECK:STDOUT: %Class.F.decl: %Class.F.type = fn_decl @Class.F [concrete = constants.%Class.F] {
// CHECK:STDOUT: %return.param_patt: %pattern_type.c6b = out_param_pattern [concrete]
// CHECK:STDOUT: %return.patt: %pattern_type.c6b = return_slot_pattern %return.param_patt, %i32 [concrete]
// CHECK:STDOUT: } {
// CHECK:STDOUT: %i32: type = type_literal constants.%i32 [concrete = constants.%i32]
// CHECK:STDOUT: %.loc16: Core.Form = init_form %i32 [concrete = constants.%.70c]
// CHECK:STDOUT: %return.param: ref %i32 = out_param call_param0
// CHECK:STDOUT: %return: ref %i32 = return_slot %return.param
// CHECK:STDOUT: }
// CHECK:STDOUT: %Class.G.decl: %Class.G.type = fn_decl @Class.G [concrete = constants.%Class.G] {
// CHECK:STDOUT: %return.param_patt: %pattern_type.c6b = out_param_pattern [concrete]
// CHECK:STDOUT: %return.patt: %pattern_type.c6b = return_slot_pattern %return.param_patt, %i32 [concrete]
// CHECK:STDOUT: } {
// CHECK:STDOUT: %i32: type = type_literal constants.%i32 [concrete = constants.%i32]
// CHECK:STDOUT: %.loc20: Core.Form = init_form %i32 [concrete = constants.%.70c]
// CHECK:STDOUT: %return.param: ref %i32 = out_param call_param0
// CHECK:STDOUT: %return: ref %i32 = return_slot %return.param
// CHECK:STDOUT: }
// CHECK:STDOUT: %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
// CHECK:STDOUT: complete_type_witness = %complete_type
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = constants.%Class
// CHECK:STDOUT: .F = %Class.F.decl
// CHECK:STDOUT: .G = %Class.G.decl
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Class.F() -> out %return.param: %i32 {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
// CHECK:STDOUT: %impl.elem0: %.205 = impl_witness_access constants.%ImplicitAs.impl_witness.fb6, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.e6b]
// CHECK:STDOUT: %bound_method.loc17_13.1: <bound method> = bound_method %int_1, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.c0d]
// CHECK:STDOUT: %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
// CHECK:STDOUT: %bound_method.loc17_13.2: <bound method> = bound_method %int_1, %specific_fn [concrete = constants.%bound_method.33d]
// CHECK:STDOUT: %Core.IntLiteral.as.ImplicitAs.impl.Convert.call: init %i32 = call %bound_method.loc17_13.2(%int_1) [concrete = constants.%int_1.d5e]
// CHECK:STDOUT: %.loc17: init %i32 = converted %int_1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call [concrete = constants.%int_1.d5e]
// CHECK:STDOUT: return %.loc17
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Class.G() -> out %return.param: %i32 {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %F.ref: %Class.F.type = name_ref F, @Class.%Class.F.decl [concrete = constants.%Class.F]
// CHECK:STDOUT: %Class.F.call: init %i32 = call %F.ref()
// CHECK:STDOUT: return %Class.F.call
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @F() -> out %return.param: %i32 {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %int_2: Core.IntLiteral = int_value 2 [concrete = constants.%int_2.ecc]
// CHECK:STDOUT: %impl.elem0: %.205 = impl_witness_access constants.%ImplicitAs.impl_witness.fb6, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.e6b]
// CHECK:STDOUT: %bound_method.loc26_11.1: <bound method> = bound_method %int_2, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.22e]
// CHECK:STDOUT: %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
// CHECK:STDOUT: %bound_method.loc26_11.2: <bound method> = bound_method %int_2, %specific_fn [concrete = constants.%bound_method.cc3]
// CHECK:STDOUT: %Core.IntLiteral.as.ImplicitAs.impl.Convert.call: init %i32 = call %bound_method.loc26_11.2(%int_2) [concrete = constants.%int_2.4ff]
// CHECK:STDOUT: %.loc26: init %i32 = converted %int_2, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call [concrete = constants.%int_2.4ff]
// CHECK:STDOUT: return %.loc26
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Run() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: name_binding_decl {
// CHECK:STDOUT: %a.patt: %pattern_type.c6b = ref_binding_pattern a [concrete]
// CHECK:STDOUT: %a.var_patt: %pattern_type.c6b = var_pattern %a.patt [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT: %a.var: ref %i32 = var %a.var_patt
// CHECK:STDOUT: %F.ref.loc30: %F.type = name_ref F, file.%F.decl [concrete = constants.%F]
// CHECK:STDOUT: %F.call: init %i32 = call %F.ref.loc30()
// CHECK:STDOUT: assign %a.var, %F.call
// CHECK:STDOUT: %i32.loc30: type = type_literal constants.%i32 [concrete = constants.%i32]
// CHECK:STDOUT: %a: ref %i32 = ref_binding a, %a.var
// CHECK:STDOUT: name_binding_decl {
// CHECK:STDOUT: %b.patt: %pattern_type.c6b = ref_binding_pattern b [concrete]
// CHECK:STDOUT: %b.var_patt: %pattern_type.c6b = var_pattern %b.patt [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT: %b.var: ref %i32 = var %b.var_patt
// CHECK:STDOUT: %Class.ref: type = name_ref Class, file.%Class.decl [concrete = constants.%Class]
// CHECK:STDOUT: %F.ref.loc31: %Class.F.type = name_ref F, @Class.%Class.F.decl [concrete = constants.%Class.F]
// CHECK:STDOUT: %Class.F.call: init %i32 = call %F.ref.loc31()
// CHECK:STDOUT: assign %b.var, %Class.F.call
// CHECK:STDOUT: %i32.loc31: type = type_literal constants.%i32 [concrete = constants.%i32]
// CHECK:STDOUT: %b: ref %i32 = ref_binding b, %b.var
// CHECK:STDOUT: %Destroy.Op.bound.loc31: <bound method> = bound_method %b.var, constants.%Destroy.Op.1dc86d.2
// CHECK:STDOUT: %Destroy.Op.call.loc31: init %empty_tuple.type = call %Destroy.Op.bound.loc31(%b.var)
// CHECK:STDOUT: %Destroy.Op.bound.loc30: <bound method> = bound_method %a.var, constants.%Destroy.Op.1dc86d.2
// CHECK:STDOUT: %Destroy.Op.call.loc30: init %empty_tuple.type = call %Destroy.Op.bound.loc30(%a.var)
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Destroy.Op.loc31_3.1(%self.param: ref %i32.builtin) = "no_op";
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Destroy.Op.loc31_3.2(%self.param: ref %i32) {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
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