mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-09-29 08:14:57 +01:00
kshokhin
65e95942de
Implement Choice parsing in toolchain according to [design](https://github.com/carbon-language/carbon-lang/blob/trunk/docs/design/sum_types.md).
24 lines
1020 B
Plaintext
24 lines
1020 B
Plaintext
// 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
|
|
|
|
choice X {
|
|
// CHECK:STDERR: fail_alternative_with_implicit_params.carbon:[[@LINE+3]]:4: ERROR: Expected `,` or `}`.
|
|
// CHECK:STDERR: A[T:! type](value: T)
|
|
// CHECK:STDERR: ^
|
|
A[T:! type](value: T)
|
|
}
|
|
|
|
// CHECK:STDOUT: - filename: fail_alternative_with_implicit_params.carbon
|
|
// CHECK:STDOUT: parse_tree: [
|
|
// CHECK:STDOUT: {kind: 'FileStart', text: ''},
|
|
// CHECK:STDOUT: {kind: 'ChoiceIntroducer', text: 'choice'},
|
|
// CHECK:STDOUT: {kind: 'IdentifierName', text: 'X'},
|
|
// CHECK:STDOUT: {kind: 'ChoiceDefinitionStart', text: '{', subtree_size: 3},
|
|
// CHECK:STDOUT: {kind: 'IdentifierName', text: 'A'},
|
|
// CHECK:STDOUT: {kind: 'ChoiceDefinition', text: '}', has_error: yes, subtree_size: 5},
|
|
// CHECK:STDOUT: {kind: 'FileEnd', text: ''},
|
|
// CHECK:STDOUT: ]
|