1 | 'use strict';
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2 |
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3 | const { isComment, hasSource } = require('./typeGuards');
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4 |
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5 |
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6 |
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7 |
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8 |
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9 | module.exports = function (statement) {
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10 | const parentNode = statement.parent;
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11 |
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12 | if (parentNode === undefined || parentNode.type === 'root') {
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13 | return false;
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14 | }
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15 |
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16 | if (statement === parentNode.first) {
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17 | return true;
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18 | }
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19 |
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20 | |
21 |
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22 |
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23 |
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24 |
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25 | const parentNodes = parentNode.nodes;
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26 |
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27 | if (!parentNodes) {
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28 | return false;
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29 | }
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30 |
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31 | const firstNode = parentNodes[0];
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32 |
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33 | if (
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34 | !isComment(firstNode) ||
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35 | (typeof firstNode.raws.before === 'string' && firstNode.raws.before.includes('\n'))
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36 | ) {
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37 | return false;
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38 | }
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39 |
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40 | if (!hasSource(firstNode) || !firstNode.source.start) {
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41 | return false;
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42 | }
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43 |
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44 | const openingBraceLine = firstNode.source.start.line;
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45 |
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46 | if (!firstNode.source.end || openingBraceLine !== firstNode.source.end.line) {
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47 | return false;
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48 | }
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49 |
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50 | for (let i = 1; i < parentNodes.length; i++) {
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51 | const node = parentNodes[i];
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52 |
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53 | if (node === statement) {
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54 | return true;
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55 | }
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56 |
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57 | if (
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58 | !isComment(node) ||
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59 | (hasSource(node) && node.source.end && node.source.end.line !== openingBraceLine)
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60 | ) {
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61 | return false;
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62 | }
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63 | }
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64 |
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65 |
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66 | return false;
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67 | };
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