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https://github.com/carbon-language/carbon-lang.git
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Richard Smith
99bde2acb3
Use the same node kind for the body of `case` and `default` handlers. We don't need to distinguish these in check, so don't create extra node kinds for them. In order to make the nodes properly delimited, make the label (`case ...` or `default`) nodes be children of the `=>` node rather than siblings. This allows us to use the node kind of the `=>` as the bracketing node for the complete handler, rather than having two different bracketing node kinds, one for each kind of label.
48 lines
2.6 KiB
Plaintext
48 lines
2.6 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/match/fail_missing_default_statements_block.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/match/fail_missing_default_statements_block.carbon
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fn f() -> i32 {
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match (3) {
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default =>
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// CHECK:STDERR: fail_missing_default_statements_block.carbon:[[@LINE+4]]:3: error: expected `{` after `=>` [ExpectedMatchCaseBlock]
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// CHECK:STDERR: }
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// CHECK:STDERR: ^
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// CHECK:STDERR:
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}
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return 0;
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}
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// CHECK:STDOUT: - filename: fail_missing_default_statements_block.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: 'IntTypeLiteral', text: 'i32'},
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// CHECK:STDOUT: {kind: 'ReturnType', text: '->', subtree_size: 2},
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// CHECK:STDOUT: {kind: 'FunctionDefinitionStart', text: '{', subtree_size: 7},
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// CHECK:STDOUT: {kind: 'MatchIntroducer', text: 'match'},
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// CHECK:STDOUT: {kind: 'MatchConditionStart', text: '('},
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// CHECK:STDOUT: {kind: 'IntLiteral', text: '3'},
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// CHECK:STDOUT: {kind: 'MatchCondition', text: ')', subtree_size: 3},
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// CHECK:STDOUT: {kind: 'MatchStatementStart', text: '{', subtree_size: 5},
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// CHECK:STDOUT: {kind: 'MatchDefaultIntroducer', text: 'default'},
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// CHECK:STDOUT: {kind: 'MatchDefault', text: '=>', subtree_size: 2},
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// CHECK:STDOUT: {kind: 'MatchHandlerStart', text: '}', has_error: yes, subtree_size: 3},
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// CHECK:STDOUT: {kind: 'MatchHandler', text: '}', has_error: yes, subtree_size: 4},
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// CHECK:STDOUT: {kind: 'MatchStatement', text: '}', subtree_size: 10},
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// CHECK:STDOUT: {kind: 'ReturnStatementStart', text: 'return'},
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// CHECK:STDOUT: {kind: 'IntLiteral', text: '0'},
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// CHECK:STDOUT: {kind: 'ReturnStatement', text: ';', subtree_size: 3},
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// CHECK:STDOUT: {kind: 'FunctionDefinition', text: '}', subtree_size: 21},
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// CHECK:STDOUT: {kind: 'FileEnd', text: ''},
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// CHECK:STDOUT: ]
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