mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-09-28 12:00:09 +01:00
Geoff Romer
4a0cf6c1fb
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.
66 lines
4.1 KiB
Plaintext
66 lines
4.1 KiB
Plaintext
// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
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// Exceptions. See /LICENSE for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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// AUTOUPDATE
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// TIP: To test this file alone, run:
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// TIP: bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/parse/testdata/generics/named_constraint/invalid_method.carbon
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// TIP: To dump output, run:
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// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/parse/testdata/generics/named_constraint/invalid_method.carbon
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constraint E {
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// This is an error in the check phase.
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fn DeclaredMethod[self: Self](b: Self) -> Self;
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}
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constraint Foo {
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// This is an error in the check phase.
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fn DefinedMethod[unused self: Self](b: Self) -> Self {}
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}
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// CHECK:STDOUT: - filename: invalid_method.carbon
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// CHECK:STDOUT: parse_tree: [
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// CHECK:STDOUT: {kind: 'FileStart', text: ''},
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// CHECK:STDOUT: {kind: 'NamedConstraintIntroducer', text: 'constraint'},
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// CHECK:STDOUT: {kind: 'IdentifierNameNotBeforeSignature', text: 'E'},
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// CHECK:STDOUT: {kind: 'NamedConstraintDefinitionStart', text: '{', subtree_size: 3},
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// CHECK:STDOUT: {kind: 'FunctionIntroducer', text: 'fn'},
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// CHECK:STDOUT: {kind: 'IdentifierNameMaybeBeforeSignature', text: 'DeclaredMethod'},
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// CHECK:STDOUT: {kind: 'ImplicitParamListStart', text: '['},
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// CHECK:STDOUT: {kind: 'SelfValueName', text: 'self'},
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// CHECK:STDOUT: {kind: 'SelfTypeNameExpr', text: 'Self'},
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// CHECK:STDOUT: {kind: 'LetBindingPattern', text: ':', subtree_size: 3},
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// CHECK:STDOUT: {kind: 'ImplicitParamList', text: ']', subtree_size: 5},
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// CHECK:STDOUT: {kind: 'ExplicitParamListStart', text: '('},
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// CHECK:STDOUT: {kind: 'IdentifierNameNotBeforeSignature', text: 'b'},
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// CHECK:STDOUT: {kind: 'SelfTypeNameExpr', text: 'Self'},
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// CHECK:STDOUT: {kind: 'LetBindingPattern', text: ':', subtree_size: 3},
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// CHECK:STDOUT: {kind: 'ExplicitParamList', text: ')', subtree_size: 5},
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// CHECK:STDOUT: {kind: 'SelfTypeNameExpr', text: 'Self'},
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// CHECK:STDOUT: {kind: 'ReturnType', text: '->', subtree_size: 2},
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// CHECK:STDOUT: {kind: 'FunctionDecl', text: ';', subtree_size: 15},
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// CHECK:STDOUT: {kind: 'NamedConstraintDefinition', text: '}', subtree_size: 19},
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// CHECK:STDOUT: {kind: 'NamedConstraintIntroducer', text: 'constraint'},
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// CHECK:STDOUT: {kind: 'IdentifierNameNotBeforeSignature', text: 'Foo'},
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// CHECK:STDOUT: {kind: 'NamedConstraintDefinitionStart', text: '{', subtree_size: 3},
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// CHECK:STDOUT: {kind: 'FunctionIntroducer', text: 'fn'},
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// CHECK:STDOUT: {kind: 'IdentifierNameMaybeBeforeSignature', text: 'DefinedMethod'},
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// CHECK:STDOUT: {kind: 'ImplicitParamListStart', text: '['},
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// CHECK:STDOUT: {kind: 'SelfValueName', text: 'self'},
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// CHECK:STDOUT: {kind: 'SelfTypeNameExpr', text: 'Self'},
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// CHECK:STDOUT: {kind: 'LetBindingPattern', text: ':', subtree_size: 3},
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// CHECK:STDOUT: {kind: 'UnusedPattern', text: 'unused', subtree_size: 4},
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// CHECK:STDOUT: {kind: 'ImplicitParamList', text: ']', subtree_size: 6},
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// CHECK:STDOUT: {kind: 'ExplicitParamListStart', text: '('},
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// CHECK:STDOUT: {kind: 'IdentifierNameNotBeforeSignature', text: 'b'},
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// CHECK:STDOUT: {kind: 'SelfTypeNameExpr', text: 'Self'},
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// CHECK:STDOUT: {kind: 'LetBindingPattern', text: ':', subtree_size: 3},
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// CHECK:STDOUT: {kind: 'ExplicitParamList', text: ')', subtree_size: 5},
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// CHECK:STDOUT: {kind: 'SelfTypeNameExpr', text: 'Self'},
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// CHECK:STDOUT: {kind: 'ReturnType', text: '->', subtree_size: 2},
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// CHECK:STDOUT: {kind: 'FunctionDefinitionStart', text: '{', subtree_size: 16},
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// CHECK:STDOUT: {kind: 'FunctionDefinition', text: '}', subtree_size: 17},
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// CHECK:STDOUT: {kind: 'NamedConstraintDefinition', text: '}', subtree_size: 21},
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// CHECK:STDOUT: {kind: 'FileEnd', text: ''},
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// CHECK:STDOUT: ]
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