mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-10-02 09:05:49 +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.
95 lines
6.0 KiB
Plaintext
95 lines
6.0 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/basics/fail_bracket_recovery.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/basics/fail_bracket_recovery.carbon
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// This is a valid parse tree even though the lex errors.
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fn F() {
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var a: array(i32, 3) = (0, 1, 2);
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// CHECK:STDERR: fail_bracket_recovery.carbon:[[@LINE+4]]:5: error: opening symbol without a corresponding closing symbol [UnmatchedOpening]
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// CHECK:STDERR: (a[1) + 1;
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// CHECK:STDERR: ^
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// CHECK:STDERR:
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(a[1) + 1;
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// CHECK:STDERR: fail_bracket_recovery.carbon:[[@LINE+12]]:15: error: opening symbol without a corresponding closing symbol [UnmatchedOpening]
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// CHECK:STDERR: var x: {.y: (} = {.y = ((};
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// CHECK:STDERR: ^
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// CHECK:STDERR:
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// CHECK:STDERR: fail_bracket_recovery.carbon:[[@LINE+8]]:26: error: opening symbol without a corresponding closing symbol [UnmatchedOpening]
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// CHECK:STDERR: var x: {.y: (} = {.y = ((};
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// CHECK:STDERR: ^
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// CHECK:STDERR:
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// CHECK:STDERR: fail_bracket_recovery.carbon:[[@LINE+4]]:27: error: opening symbol without a corresponding closing symbol [UnmatchedOpening]
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// CHECK:STDERR: var x: {.y: (} = {.y = ((};
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// CHECK:STDERR: ^
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// CHECK:STDERR:
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var x: {.y: (} = {.y = ((};
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}
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// CHECK:STDOUT: - filename: fail_bracket_recovery.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: 'FunctionIntroducer', text: 'fn'},
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// CHECK:STDOUT: {kind: 'IdentifierNameMaybeBeforeSignature', text: 'F'},
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// CHECK:STDOUT: {kind: 'ExplicitParamListStart', text: '('},
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// CHECK:STDOUT: {kind: 'ExplicitParamList', text: ')', subtree_size: 2},
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// CHECK:STDOUT: {kind: 'FunctionDefinitionStart', text: '{', subtree_size: 5},
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// CHECK:STDOUT: {kind: 'VariableIntroducer', text: 'var'},
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// CHECK:STDOUT: {kind: 'IdentifierNameNotBeforeSignature', text: 'a'},
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// CHECK:STDOUT: {kind: 'ArrayExprKeyword', text: 'array'},
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// CHECK:STDOUT: {kind: 'ArrayExprOpenParen', text: '('},
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// CHECK:STDOUT: {kind: 'IntTypeLiteral', text: 'i32'},
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// CHECK:STDOUT: {kind: 'ArrayExprComma', text: ','},
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// CHECK:STDOUT: {kind: 'IntLiteral', text: '3'},
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// CHECK:STDOUT: {kind: 'ArrayExpr', text: ')', subtree_size: 6},
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// CHECK:STDOUT: {kind: 'VarBindingPattern', text: ':', subtree_size: 8},
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// CHECK:STDOUT: {kind: 'VariablePattern', text: 'var', subtree_size: 9},
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// CHECK:STDOUT: {kind: 'VariableInitializer', text: '='},
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// CHECK:STDOUT: {kind: 'TupleLiteralStart', text: '('},
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// CHECK:STDOUT: {kind: 'IntLiteral', text: '0'},
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// CHECK:STDOUT: {kind: 'TupleLiteralComma', text: ','},
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// CHECK:STDOUT: {kind: 'IntLiteral', text: '1'},
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// CHECK:STDOUT: {kind: 'TupleLiteralComma', text: ','},
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// CHECK:STDOUT: {kind: 'IntLiteral', text: '2'},
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// CHECK:STDOUT: {kind: 'TupleLiteral', text: ')', subtree_size: 7},
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// CHECK:STDOUT: {kind: 'VariableDecl', text: ';', subtree_size: 19},
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// CHECK:STDOUT: {kind: 'ParenExprStart', text: '('},
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// CHECK:STDOUT: {kind: 'IdentifierNameExpr', text: 'a'},
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// CHECK:STDOUT: {kind: 'IndexExprStart', text: '[', subtree_size: 2},
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// CHECK:STDOUT: {kind: 'IntLiteral', text: '1'},
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// CHECK:STDOUT: {kind: 'IndexExpr', text: ']', subtree_size: 4},
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// CHECK:STDOUT: {kind: 'ParenExpr', text: ')', subtree_size: 6},
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// CHECK:STDOUT: {kind: 'IntLiteral', text: '1'},
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// CHECK:STDOUT: {kind: 'InfixOperatorPlus', text: '+', subtree_size: 8},
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// CHECK:STDOUT: {kind: 'ExprStatement', text: ';', subtree_size: 9},
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// CHECK:STDOUT: {kind: 'VariableIntroducer', text: 'var'},
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// CHECK:STDOUT: {kind: 'IdentifierNameNotBeforeSignature', text: 'x'},
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// CHECK:STDOUT: {kind: 'StructTypeLiteralStart', text: '{'},
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// CHECK:STDOUT: {kind: 'IdentifierNameNotBeforeSignature', text: 'y'},
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// CHECK:STDOUT: {kind: 'StructFieldDesignator', text: '.', subtree_size: 2},
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// CHECK:STDOUT: {kind: 'TupleLiteralStart', text: '('},
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// CHECK:STDOUT: {kind: 'TupleLiteral', text: ')', subtree_size: 2},
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// CHECK:STDOUT: {kind: 'StructTypeLiteralField', text: ':', subtree_size: 5},
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// CHECK:STDOUT: {kind: 'StructTypeLiteral', text: '}', subtree_size: 7},
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// CHECK:STDOUT: {kind: 'VarBindingPattern', text: ':', subtree_size: 9},
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// CHECK:STDOUT: {kind: 'VariablePattern', text: 'var', subtree_size: 10},
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// CHECK:STDOUT: {kind: 'VariableInitializer', text: '='},
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// CHECK:STDOUT: {kind: 'StructLiteralStart', text: '{'},
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// CHECK:STDOUT: {kind: 'IdentifierNameNotBeforeSignature', text: 'y'},
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// CHECK:STDOUT: {kind: 'StructFieldDesignator', text: '.', subtree_size: 2},
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// CHECK:STDOUT: {kind: 'ParenExprStart', text: '('},
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// CHECK:STDOUT: {kind: 'TupleLiteralStart', text: '('},
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// CHECK:STDOUT: {kind: 'TupleLiteral', text: ')', subtree_size: 2},
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// CHECK:STDOUT: {kind: 'ParenExpr', text: ')', subtree_size: 4},
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// CHECK:STDOUT: {kind: 'StructLiteralField', text: '=', subtree_size: 7},
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// CHECK:STDOUT: {kind: 'StructLiteral', text: '}', subtree_size: 9},
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// CHECK:STDOUT: {kind: 'VariableDecl', text: ';', subtree_size: 22},
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// CHECK:STDOUT: {kind: 'FunctionDefinition', text: '}', subtree_size: 56},
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// CHECK:STDOUT: {kind: 'FileEnd', text: ''},
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// CHECK:STDOUT: ]
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