108 lines
2.8 KiB
JavaScript
108 lines
2.8 KiB
JavaScript
// @ts-nocheck
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'use strict';
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const beforeBlockString = require('../../utils/beforeBlockString');
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const blockString = require('../../utils/blockString');
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const hasBlock = require('../../utils/hasBlock');
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const hasEmptyBlock = require('../../utils/hasEmptyBlock');
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const report = require('../../utils/report');
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const ruleMessages = require('../../utils/ruleMessages');
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const validateOptions = require('../../utils/validateOptions');
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const whitespaceChecker = require('../../utils/whitespaceChecker');
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const ruleName = 'block-opening-brace-newline-before';
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const messages = ruleMessages(ruleName, {
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expectedBefore: () => 'Expected newline before "{"',
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expectedBeforeSingleLine: () => 'Expected newline before "{" of a single-line block',
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rejectedBeforeSingleLine: () => 'Unexpected whitespace before "{" of a single-line block',
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expectedBeforeMultiLine: () => 'Expected newline before "{" of a multi-line block',
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rejectedBeforeMultiLine: () => 'Unexpected whitespace before "{" of a multi-line block',
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});
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function rule(expectation, options, context) {
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const checker = whitespaceChecker('newline', expectation, messages);
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return (root, result) => {
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const validOptions = validateOptions(result, ruleName, {
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actual: expectation,
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possible: [
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'always',
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'always-single-line',
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'never-single-line',
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'always-multi-line',
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'never-multi-line',
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],
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});
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if (!validOptions) {
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return;
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}
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// Check both kinds of statement: rules and at-rules
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root.walkRules(check);
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root.walkAtRules(check);
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function check(statement) {
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// Return early if blockless or has an empty block
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if (!hasBlock(statement) || hasEmptyBlock(statement)) {
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return;
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}
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const source = beforeBlockString(statement);
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const beforeBraceNoRaw = beforeBlockString(statement, {
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noRawBefore: true,
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});
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let index = beforeBraceNoRaw.length - 1;
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if (beforeBraceNoRaw[index - 1] === '\r') {
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index -= 1;
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}
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checker.beforeAllowingIndentation({
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lineCheckStr: blockString(statement),
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source,
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index: source.length,
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err: (m) => {
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if (context.fix) {
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if (expectation.startsWith('always')) {
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const spaceIndex = statement.raws.between.search(/\s+$/);
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if (spaceIndex >= 0) {
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statement.raws.between =
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statement.raws.between.slice(0, spaceIndex) +
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context.newline +
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statement.raws.between.slice(spaceIndex);
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} else {
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statement.raws.between += context.newline;
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}
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return;
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}
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if (expectation.startsWith('never')) {
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statement.raws.between = statement.raws.between.replace(/\s*$/, '');
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return;
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}
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}
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report({
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message: m,
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node: statement,
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index,
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result,
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ruleName,
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});
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},
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});
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}
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};
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}
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rule.ruleName = ruleName;
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rule.messages = messages;
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module.exports = rule;
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