carbon-lang/toolchain/check/testdata/class/fail_init_as_inplace.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/int.carbon
//
// AUTOUPDATE
// TIP: To test this file alone, run:
// TIP:   bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/check/testdata/class/fail_init_as_inplace.carbon
// TIP: To dump output, run:
// TIP:   bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/class/fail_init_as_inplace.carbon

class Class {
  var a: i32;
  var b: i32;
}

fn G(p: Class*);

fn F() {
  // TODO: This case should presumably work: `{...} as Class` should be an
  // initializing expression, not a value expression.
  //
  // CHECK:STDERR: fail_init_as_inplace.carbon:[[@LINE+7]]:18: error: cannot copy value of type `Class` [CopyOfUncopyableType]
  // CHECK:STDERR:   var c: Class = {.a = 1, .b = 2} as Class;
  // CHECK:STDERR:                  ^~~~~~~~~~~~~~~~~~~~~~~~~
  // CHECK:STDERR: fail_init_as_inplace.carbon:[[@LINE+4]]:18: note: type `Class` does not implement interface `Core.Copy` [MissingImplInMemberAccessNote]
  // CHECK:STDERR:   var c: Class = {.a = 1, .b = 2} as Class;
  // CHECK:STDERR:                  ^~~~~~~~~~~~~~~~~~~~~~~~~
  // CHECK:STDERR:
  var c: Class = {.a = 1, .b = 2} as Class;
  G(&c);
}