mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-09-30 11:35:01 +01:00
Jon Ross-Perkins
b914f46ec5
This changes `return`, `break`, and `continue` to treat the keyword as the "start" and semicolon as the "parent", essentially bracketing the keyword. Pragmatically this is focusing on making `return` work with only one ParseNodeKind: because `return` and `;` now bracket the expression, we can tightly determine whether the `return` has arguments without looking at subtree size. However, it's possible that `break` and `continue` may in the future take some kind of label as an argument, so the consistency seems beneficial there too. Note this eliminates the StatementEnd ParseNodeKind, as it's obsolete with this change.
49 lines
2.3 KiB
Plaintext
49 lines
2.3 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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// RUN: %{carbon-run-parser}
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// CHECK:STDOUT: [
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// CHECK:STDOUT: {kind: 'FunctionIntroducer', text: 'fn'},
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// CHECK:STDOUT: {kind: 'DeclaredName', text: 'F'},
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// CHECK:STDOUT: {kind: 'ParameterListEnd', text: ')'},
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// CHECK:STDOUT: {kind: 'ParameterList', text: '(', subtree_size: 2},
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// CHECK:STDOUT: {kind: 'FunctionDefinitionStart', text: '{', subtree_size: 5},
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// CHECK:STDOUT: {kind: 'NameReference', text: 'a'},
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// CHECK:STDOUT: {kind: 'ConditionEnd', text: ')'},
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// CHECK:STDOUT: {kind: 'Condition', text: '(', subtree_size: 3},
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// CHECK:STDOUT: {kind: 'CodeBlockStart', text: '{'},
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// CHECK:STDOUT: {kind: 'NameReference', text: 'b'},
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// CHECK:STDOUT: {kind: 'ConditionEnd', text: ')'},
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// CHECK:STDOUT: {kind: 'Condition', text: '(', subtree_size: 3},
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// CHECK:STDOUT: {kind: 'CodeBlockStart', text: '{'},
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// CHECK:STDOUT: {kind: 'BreakStatementStart', text: 'break'},
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// CHECK:STDOUT: {kind: 'BreakStatement', text: ';', subtree_size: 2},
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// CHECK:STDOUT: {kind: 'CodeBlock', text: '}', subtree_size: 4},
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// CHECK:STDOUT: {kind: 'IfStatement', text: 'if', subtree_size: 8},
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// CHECK:STDOUT: {kind: 'NameReference', text: 'c'},
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// CHECK:STDOUT: {kind: 'ConditionEnd', text: ')'},
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// CHECK:STDOUT: {kind: 'Condition', text: '(', subtree_size: 3},
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// CHECK:STDOUT: {kind: 'CodeBlockStart', text: '{'},
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// CHECK:STDOUT: {kind: 'ContinueStatementStart', text: 'continue'},
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// CHECK:STDOUT: {kind: 'ContinueStatement', text: ';', subtree_size: 2},
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// CHECK:STDOUT: {kind: 'CodeBlock', text: '}', subtree_size: 4},
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// CHECK:STDOUT: {kind: 'IfStatement', text: 'if', subtree_size: 8},
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// CHECK:STDOUT: {kind: 'CodeBlock', text: '}', subtree_size: 18},
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// CHECK:STDOUT: {kind: 'WhileStatement', text: 'while', subtree_size: 22},
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// CHECK:STDOUT: {kind: 'FunctionDefinition', text: '}', subtree_size: 28},
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// CHECK:STDOUT: {kind: 'FileEnd', text: ''},
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// CHECK:STDOUT: ]
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fn F() {
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while (a) {
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if (b) {
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break;
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}
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if (c) {
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continue;
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}
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}
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}
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