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carbon-lang/toolchain/check/testdata/interface/no_definition_in_impl_file.carbon
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2026-08-25 18:43:52 +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/none.carbon
//
// AUTOUPDATE
// TIP: To test this file alone, run:
// TIP: bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/check/testdata/interface/no_definition_in_impl_file.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/interface/no_definition_in_impl_file.carbon
// --- decl_in_api_definition_in_impl.carbon
library "[[@TEST_NAME]]";
interface A;
// --- todo_fail_decl_in_api_definition_in_impl.impl.carbon
impl library "[[@TEST_NAME]]";
// TODO: This should be diagnosed per #3762: A declaration should always add new information.
interface A;
interface A {}
// --- use_decl_in_api.carbon
library "[[@TEST_NAME]]";
// --- use_decl_in_api.impl.carbon
impl library "[[@TEST_NAME]]";
import library "decl_in_api_definition_in_impl";
// --- decl_only_in_api.carbon
library "[[@TEST_NAME]]";
interface B;
// --- decl_only_in_api.impl.carbon
impl library "[[@TEST_NAME]]";
// --- decl_in_api_decl_in_impl.carbon
library "[[@TEST_NAME]]";
interface C;
// --- fail_decl_in_api_decl_in_impl.impl.carbon
impl library "[[@TEST_NAME]]";
// CHECK:STDERR: fail_decl_in_api_decl_in_impl.impl.carbon:[[@LINE+4]]:1: error: no definition found for declaration in impl file [MissingDefinitionInImpl]
// CHECK:STDERR: interface C;
// CHECK:STDERR: ^~~~~~~~~~~~
// CHECK:STDERR:
interface C;
// --- decl_only_in_impl.carbon
library "[[@TEST_NAME]]";
// --- fail_decl_only_in_impl.impl.carbon
impl library "[[@TEST_NAME]]";
// CHECK:STDERR: fail_decl_only_in_impl.impl.carbon:[[@LINE+4]]:1: error: no definition found for declaration in impl file [MissingDefinitionInImpl]
// CHECK:STDERR: interface D;
// CHECK:STDERR: ^~~~~~~~~~~~
// CHECK:STDERR:
interface D;