carbon-lang/toolchain/check/testdata/interface/import_interface_decl.carbon

// 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/import_interface_decl.carbon
// TIP: To dump output, run:
// TIP:   bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/interface/import_interface_decl.carbon

// --- a.carbon
library "[[@TEST_NAME]]";
interface A;

// --- a.impl.carbon
//@include-in-dumps
impl library "[[@TEST_NAME]]";

// --- fail_b.carbon
library "[[@TEST_NAME]]";
interface B {}
// CHECK:STDERR: fail_b.carbon:[[@LINE+4]]:1: error: impl declared but not defined [ImplMissingDefinition]
// CHECK:STDERR: impl () as B;
// CHECK:STDERR: ^~~~~~~~~~~~~
// CHECK:STDERR:
impl () as B;

// --- b.impl.carbon
//@include-in-dumps
impl library "[[@TEST_NAME]]";

// CHECK:STDOUT: --- a.impl.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT:   %Main.A = import_ref Main//a, A, unloaded
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT:   package: <namespace> = namespace [concrete] {
// CHECK:STDOUT:     .A = imports.%Main.A
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %default.import.loc2_17.1 = import <none>
// CHECK:STDOUT:   %default.import.loc2_17.2 = import <none>
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- b.impl.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT:   %B.type: type = facet_type <@B> [concrete]
// CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT:   %Main.B = import_ref Main//b, B, unloaded
// CHECK:STDOUT:   %Main.import_ref.5c0 = import_ref Main//b, loc2_13, unloaded
// CHECK:STDOUT:   %Main.import_ref.e5c: type = import_ref Main//b, loc7_7, loaded [concrete = constants.%empty_tuple.type]
// CHECK:STDOUT:   %Main.import_ref.171: type = import_ref Main//b, loc7_12, loaded [concrete = constants.%B.type]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT:   package: <namespace> = namespace [concrete] {
// CHECK:STDOUT:     .B = imports.%Main.B
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %default.import.loc2_17.1 = import <none>
// CHECK:STDOUT:   %default.import.loc2_17.2 = import <none>
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: interface @B [from "fail_b.carbon"] {
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Self = imports.%Main.import_ref.5c0
// CHECK:STDOUT:   witness = ()
// CHECK:STDOUT:
// CHECK:STDOUT: !requires:
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl @empty_tuple.type.as.B.impl: imports.%Main.import_ref.e5c as imports.%Main.import_ref.171 [from "fail_b.carbon"];
// CHECK:STDOUT: