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carbon-lang/toolchain/check/testdata/operators/overloaded/dec.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

56 lines
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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/full.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/operators/overloaded/dec.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/operators/overloaded/dec.carbon
// This file was generated from unary_stmt.carbon.tmpl. Run make_tests.sh to regenerate.
package User;
class C {};
impl C as Core.Dec {
fn Op[ref self: C]();
}
fn TestOp() {
var c: C = {};
//@dump-sem-ir-begin
--c;
//@dump-sem-ir-end
}
// CHECK:STDOUT: --- dec.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %C: type = class_type @C [concrete]
// CHECK:STDOUT: %Dec.type: type = facet_type <@Dec> [concrete]
// CHECK:STDOUT: %Dec.impl_witness: <witness> = impl_witness @C.as.Dec.impl.%Dec.impl_witness_table [concrete]
// CHECK:STDOUT: %C.as.Dec.impl.Op.type: type = fn_type @C.as.Dec.impl.Op [concrete]
// CHECK:STDOUT: %empty_tuple.type: type = tuple_type () [concrete]
// CHECK:STDOUT: %C.as.Dec.impl.Op: %C.as.Dec.impl.Op.type = struct_value () [concrete]
// CHECK:STDOUT: %Dec.facet: %Dec.type = facet_value %C, (%Dec.impl_witness) [concrete]
// CHECK:STDOUT: %Dec.WithSelf.Op.type.729: type = fn_type @Dec.WithSelf.Op, @Dec.WithSelf(%Dec.facet) [concrete]
// CHECK:STDOUT: %.45c: type = fn_type_with_self_type %Dec.WithSelf.Op.type.729, %Dec.facet [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @TestOp() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: %c.ref: ref %C = name_ref c, %c
// CHECK:STDOUT: %impl.elem0: %.45c = impl_witness_access constants.%Dec.impl_witness, element0 [concrete = constants.%C.as.Dec.impl.Op]
// CHECK:STDOUT: %bound_method: <bound method> = bound_method %c.ref, %impl.elem0
// CHECK:STDOUT: %C.as.Dec.impl.Op.call: init %empty_tuple.type = call %bound_method(%c.ref)
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: }
// CHECK:STDOUT: