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Tolerate incomplete interface when stringifying ImplWitnessAccess (#5730)

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Closes #5727
This commit is contained in:
Geoff Romer
2025-06-26 14:37:16 +00:00
committed by GitHub
parent 78ef1678aa
commit 1893afe479
2 changed files with 33 additions and 8 deletions
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toolchain/check/testdata/interface/fail_type_as_facet.carbon
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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/convert.carbon
//
// AUTOUPDATE
// TIP: To test this file alone, run:
// TIP: bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/check/testdata/interface/fail_type_as_facet.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/interface/fail_type_as_facet.carbon
interface I {
let T:! type;
// CHECK:STDERR: fail_type_as_facet.carbon:[[@LINE+7]]:18: error: cannot implicitly convert non-type value of type `Self.(TODO: element 0 in incomplete Self as I)` to `type` [ConversionFailureNonTypeToFacet]
// CHECK:STDERR: fn F[X:! T](x: X);
// CHECK:STDERR: ^
// CHECK:STDERR: fail_type_as_facet.carbon:[[@LINE+4]]:18: note: type `Self.(TODO: element 0 in incomplete Self as I)` does not implement interface `Core.ImplicitAs(type)` [MissingImplInMemberAccessNote]
// CHECK:STDERR: fn F[X:! T](x: X);
// CHECK:STDERR: ^
// CHECK:STDERR:
fn F[X:! T](x: X);
}