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carbon-lang/toolchain/check/testdata/array/import.carbon
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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/int.carbon
//
// AUTOUPDATE
// TIP: To test this file alone, run:
// TIP: bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/check/testdata/array/import.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/array/import.carbon
// --- library.carbon
library "[[@TEST_NAME]]";
fn F() -> array(i32, 42);
// --- user.carbon
import library "library";
fn G(n: i32) -> i32 {
//@dump-sem-ir-begin
return F()[n];
//@dump-sem-ir-end
}
// --- symbolic_decl.carbon
library "[[@TEST_NAME]]";
interface I {
let value:! array(i32, 1);
}
class C {}
impl C as I where .value = (1,) {}
// --- import_symbolic_decl.carbon
library "[[@TEST_NAME]]";
import library "symbolic_decl";
fn F() -> i32 {
//@dump-sem-ir-begin
let a: array(i32, 1) = (C as I).value;
//@dump-sem-ir-end
return a[0];
}
// CHECK:STDOUT: --- user.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %int_32: Core.IntLiteral = int_value 32 [concrete]
// CHECK:STDOUT: %empty_tuple.type: type = tuple_type () [concrete]
// CHECK:STDOUT: %N: Core.IntLiteral = symbolic_binding N, 0 [symbolic]
// CHECK:STDOUT: %i32: type = class_type @Int, @Int(%int_32) [concrete]
// CHECK:STDOUT: %i32.builtin: type = int_type signed, %int_32 [concrete]
// CHECK:STDOUT: %F.type: type = fn_type @F [concrete]
// CHECK:STDOUT: %F: %F.type = struct_value () [concrete]
// CHECK:STDOUT: %int_42: Core.IntLiteral = int_value 42 [concrete]
// CHECK:STDOUT: %array_type: type = array_type %int_42, %i32 [concrete]
// CHECK:STDOUT: %Copy.type: type = facet_type <@Copy> [concrete]
// CHECK:STDOUT: %Int.as.Copy.impl.Op.type.ac8: type = fn_type @Int.as.Copy.impl.Op, @Int.as.Copy.impl(%N) [symbolic]
// CHECK:STDOUT: %Int.as.Copy.impl.Op.5e0: %Int.as.Copy.impl.Op.type.ac8 = struct_value () [symbolic]
// CHECK:STDOUT: %Copy.impl_witness.0e0: <witness> = impl_witness imports.%Copy.impl_witness_table.367, @Int.as.Copy.impl(%int_32) [concrete]
// CHECK:STDOUT: %Int.as.Copy.impl.Op.type.3f6: type = fn_type @Int.as.Copy.impl.Op, @Int.as.Copy.impl(%int_32) [concrete]
// CHECK:STDOUT: %Int.as.Copy.impl.Op.4f6: %Int.as.Copy.impl.Op.type.3f6 = struct_value () [concrete]
// CHECK:STDOUT: %Copy.facet: %Copy.type = facet_value %i32, (%Copy.impl_witness.0e0) [concrete]
// CHECK:STDOUT: %Copy.WithSelf.Op.type.d09: type = fn_type @Copy.WithSelf.Op, @Copy.WithSelf(%Copy.facet) [concrete]
// CHECK:STDOUT: %.7a6: type = fn_type_with_self_type %Copy.WithSelf.Op.type.d09, %Copy.facet [concrete]
// CHECK:STDOUT: %Int.as.Copy.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Copy.impl.Op.4f6, @Int.as.Copy.impl.Op(%int_32) [concrete]
// CHECK:STDOUT: %Destroy.Op.type.1d8f74.3: type = fn_type @Destroy.Op.loc6_12.3 [concrete]
// CHECK:STDOUT: %Destroy.Op.1a2547.3: %Destroy.Op.type.1d8f74.3 = struct_value () [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Main.F: %F.type = import_ref Main//library, F, loaded [concrete = constants.%F]
// CHECK:STDOUT: %Core.import_ref.cd6: @Int.as.Copy.impl.%Int.as.Copy.impl.Op.type (%Int.as.Copy.impl.Op.type.ac8) = import_ref Core//prelude/parts/int, loc{{\d+_\d+}}, loaded [symbolic = @Int.as.Copy.impl.%Int.as.Copy.impl.Op (constants.%Int.as.Copy.impl.Op.5e0)]
// CHECK:STDOUT: %Copy.impl_witness_table.367 = impl_witness_table (%Core.import_ref.cd6), @Int.as.Copy.impl [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @G(%n.param: %i32) -> out %return.param: %i32 {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %F.ref: %F.type = name_ref F, imports.%Main.F [concrete = constants.%F]
// CHECK:STDOUT: %.loc6_12.1: ref %array_type = temporary_storage
// CHECK:STDOUT: %F.call: init %array_type to %.loc6_12.1 = call %F.ref()
// CHECK:STDOUT: %n.ref: %i32 = name_ref n, %n
// CHECK:STDOUT: %.loc6_12.2: ref %array_type = temporary %.loc6_12.1, %F.call
// CHECK:STDOUT: %.loc6_15.1: ref %i32 = array_index %.loc6_12.2, %n.ref
// CHECK:STDOUT: %.loc6_15.2: %i32 = acquire_value %.loc6_15.1
// CHECK:STDOUT: %impl.elem0: %.7a6 = impl_witness_access constants.%Copy.impl_witness.0e0, element0 [concrete = constants.%Int.as.Copy.impl.Op.4f6]
// CHECK:STDOUT: %bound_method.loc6_15.1: <bound method> = bound_method %.loc6_15.2, %impl.elem0
// CHECK:STDOUT: %specific_fn: <specific function> = specific_function %impl.elem0, @Int.as.Copy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Copy.impl.Op.specific_fn]
// CHECK:STDOUT: %bound_method.loc6_15.2: <bound method> = bound_method %.loc6_15.2, %specific_fn
// CHECK:STDOUT: %Int.as.Copy.impl.Op.call: init %i32 = call %bound_method.loc6_15.2(%.loc6_15.2)
// CHECK:STDOUT: %Destroy.Op.bound: <bound method> = bound_method %.loc6_12.2, constants.%Destroy.Op.1a2547.3
// CHECK:STDOUT: %Destroy.Op.call: init %empty_tuple.type = call %Destroy.Op.bound(%.loc6_12.2)
// CHECK:STDOUT: return %Int.as.Copy.impl.Op.call
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Destroy.Op.loc6_12.1(%self.param: ref %i32.builtin) = "no_op";
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Destroy.Op.loc6_12.2(%self.param: ref %i32) {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Destroy.Op.loc6_12.3(%self.param: ref %array_type) {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- import_symbolic_decl.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %int_32: Core.IntLiteral = int_value 32 [concrete]
// CHECK:STDOUT: %i32: type = class_type @Int, @Int(%int_32) [concrete]
// CHECK:STDOUT: %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
// CHECK:STDOUT: %array_type: type = array_type %int_1.5b8, %i32 [concrete]
// CHECK:STDOUT: %pattern_type.97e: type = pattern_type %array_type [concrete]
// CHECK:STDOUT: %C: type = class_type @C [concrete]
// CHECK:STDOUT: %I.type: type = facet_type <@I> [concrete]
// CHECK:STDOUT: %int_1.0c6: %i32 = int_value 1 [concrete]
// CHECK:STDOUT: %array: %array_type = tuple_value (%int_1.0c6) [concrete]
// CHECK:STDOUT: %I.impl_witness: <witness> = impl_witness imports.%I.impl_witness_table [concrete]
// CHECK:STDOUT: %I.facet: %I.type = facet_value %C, (%I.impl_witness) [concrete]
// CHECK:STDOUT: %I.assoc_type: type = assoc_entity_type @I [concrete]
// CHECK:STDOUT: %assoc0.524: %I.assoc_type = assoc_entity element0, imports.%Main.import_ref.98e [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Main.I: type = import_ref Main//symbolic_decl, I, loaded [concrete = constants.%I.type]
// CHECK:STDOUT: %Main.C: type = import_ref Main//symbolic_decl, C, loaded [concrete = constants.%C]
// CHECK:STDOUT: %Main.import_ref.3ab: %I.assoc_type = import_ref Main//symbolic_decl, loc5_12, loaded [concrete = constants.%assoc0.524]
// CHECK:STDOUT: %Main.import_ref.c09: %array_type = import_ref Main//symbolic_decl, loc10_33, loaded [concrete = constants.%array]
// CHECK:STDOUT: %I.impl_witness_table = impl_witness_table (%Main.import_ref.c09), @C.as.I.impl [concrete]
// CHECK:STDOUT: %Main.import_ref.98e: %array_type = import_ref Main//symbolic_decl, loc5_12, loaded [concrete = %value]
// CHECK:STDOUT: %value: %array_type = assoc_const_decl @value [concrete] {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @F() -> out %return.param: %i32 {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: name_binding_decl {
// CHECK:STDOUT: %a.patt: %pattern_type.97e = value_binding_pattern a [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT: %C.ref: type = name_ref C, imports.%Main.C [concrete = constants.%C]
// CHECK:STDOUT: %I.ref: type = name_ref I, imports.%Main.I [concrete = constants.%I.type]
// CHECK:STDOUT: %I.facet: %I.type = facet_value %C.ref, (constants.%I.impl_witness) [concrete = constants.%I.facet]
// CHECK:STDOUT: %.loc7_29: %I.type = converted %C.ref, %I.facet [concrete = constants.%I.facet]
// CHECK:STDOUT: %as_type: type = facet_access_type %.loc7_29 [concrete = constants.%C]
// CHECK:STDOUT: %.loc7_34: type = converted %.loc7_29, %as_type [concrete = constants.%C]
// CHECK:STDOUT: %value.ref: %I.assoc_type = name_ref value, imports.%Main.import_ref.3ab [concrete = constants.%assoc0.524]
// CHECK:STDOUT: %impl.elem0.loc7: %array_type = impl_witness_access constants.%I.impl_witness, element0 [concrete = constants.%array]
// CHECK:STDOUT: %.loc7_22: type = splice_block %array_type [concrete = constants.%array_type] {
// CHECK:STDOUT: %i32.loc7: type = type_literal constants.%i32 [concrete = constants.%i32]
// CHECK:STDOUT: %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
// CHECK:STDOUT: %array_type: type = array_type %int_1, %i32.loc7 [concrete = constants.%array_type]
// CHECK:STDOUT: }
// CHECK:STDOUT: %a: %array_type = value_binding a, %impl.elem0.loc7
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: }
// CHECK:STDOUT:
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