Files
carbon-lang/toolchain/parse/testdata/choice/fail_invalid_alternative_identifier.carbon
T
Geoff Romer 4a0cf6c1fb Track the start of a signature more accurately (#6760)
This change ensures that a function signature always starts with an
`IdentifierNameMaybeBeforeSignature` node (renamed from
`IdentifierNameBeforeParams`), even in the case of function declarations
like `fn F -> T` that have no parameter list. As a consequence, this
ensures that we push new entries onto `pattern_block_stack` and
`full_pattern_stack` when we start processing the function signature.
2026-02-23 22:46:03 +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
//
// AUTOUPDATE
// TIP: To test this file alone, run:
// TIP: bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/parse/testdata/choice/fail_invalid_alternative_identifier.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/parse/testdata/choice/fail_invalid_alternative_identifier.carbon
choice InvalidAlternativeIdentifier {
// CHECK:STDERR: fail_invalid_alternative_identifier.carbon:[[@LINE+4]]:5: error: expected choice alternative name [ExpectedChoiceAlternativeName]
// CHECK:STDERR: ,Some,
// CHECK:STDERR: ^
// CHECK:STDERR:
,Some,
// CHECK:STDERR: fail_invalid_alternative_identifier.carbon:[[@LINE+4]]:5: error: expected choice alternative name [ExpectedChoiceAlternativeName]
// CHECK:STDERR: 42,
// CHECK:STDERR: ^~
// CHECK:STDERR:
42,
Other
}
// CHECK:STDOUT: - filename: fail_invalid_alternative_identifier.carbon
// CHECK:STDOUT: parse_tree: [
// CHECK:STDOUT: {kind: 'FileStart', text: ''},
// CHECK:STDOUT: {kind: 'ChoiceIntroducer', text: 'choice'},
// CHECK:STDOUT: {kind: 'IdentifierNameNotBeforeSignature', text: 'InvalidAlternativeIdentifier'},
// CHECK:STDOUT: {kind: 'ChoiceDefinitionStart', text: '{', subtree_size: 3},
// CHECK:STDOUT: {kind: 'IdentifierNameNotBeforeSignature', text: 'Other'},
// CHECK:STDOUT: {kind: 'ChoiceDefinition', text: '}', has_error: yes, subtree_size: 5},
// CHECK:STDOUT: {kind: 'FileEnd', text: ''},
// CHECK:STDOUT: ]