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carbon-lang/explorer/testdata/impl/fail_unmet_impls_constraint.carbon
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josh11bandGeoff Romer 46503c0a9d Explorer and toolchain changes to implement #2483 (#2707)
This PR is making two main changes to the Explorer and Toolchain:
- Replace the `is` keyword in `where SomeType is SomeInterface` with `impls`, so it is `where SomeType impls SomeInterface`
- Rewrite uses of the "impls" to something else to avoid, frequently "`impl` declarations" or "implementations", to avoid confusion with the `impls` keyword.

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Co-authored-by: Geoff Romer <gromer@google.com>
2023-03-28 12:28:52 -07:00

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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
//
// AUTOUPDATE
// RUN: %{not} %{explorer-run}
// RUN: %{not} %{explorer-run-trace}
package ExplorerTest api;
interface A {}
interface B {}
// CHECK:STDERR: COMPILATION ERROR: {{.*}}/explorer/testdata/impl/fail_unmet_impls_constraint.carbon:[[@LINE+1]]: could not find implementation of interface B for i32
external impl i32 as A where i32 impls B {}
fn Main() -> i32 {
return 0;
}