57 lines
1.4 KiB
JavaScript
57 lines
1.4 KiB
JavaScript
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'use strict';
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const getNextNonSharedLineCommentNode = require('./getNextNonSharedLineCommentNode');
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const getPreviousNonSharedLineCommentNode = require('./getPreviousNonSharedLineCommentNode');
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const { isRoot, isComment } = require('./typeGuards');
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/** @typedef {import('postcss').Node} PostcssNode */
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/**
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*
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* @param {PostcssNode | void} a
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* @param {PostcssNode | void} b
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*/
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function nodesShareLines(a, b) {
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const endLine = a && a.source && a.source.end && a.source.end.line;
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const startLine = b && b.source && b.source.start && b.source.start.line;
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return endLine === startLine;
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}
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/**
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* @param {PostcssNode} node
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* @returns {boolean}
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*/
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module.exports = function isSharedLineComment(node) {
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if (!isComment(node)) {
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return false;
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}
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const previousNonSharedLineCommentNode = getPreviousNonSharedLineCommentNode(node);
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if (nodesShareLines(previousNonSharedLineCommentNode, node)) {
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return true;
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}
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const nextNonSharedLineCommentNode = getNextNonSharedLineCommentNode(node);
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if (nextNonSharedLineCommentNode && nodesShareLines(node, nextNonSharedLineCommentNode)) {
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return true;
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}
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const parentNode = node.parent;
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// It's a first child and located on the same line as block start
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if (
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parentNode !== undefined &&
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!isRoot(parentNode) &&
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parentNode.index(node) === 0 &&
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node.raws.before !== undefined &&
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!node.raws.before.includes('\n')
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) {
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return true;
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}
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return false;
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};
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