| 1 | "use strict";
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| 2 |
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| 3 | var _interopRequireDefault = require("@babel/runtime-corejs3/helpers/interopRequireDefault").default;
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| 4 | exports.__esModule = true;
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| 5 | exports.default = void 0;
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| 6 | var _ramda = require("ramda");
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| 7 | var _ramdaAdjunct = require("ramda-adjunct");
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| 8 | var _index = require("../predicates/index.cjs");
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| 9 | var _visitor = require("./visitor.cjs");
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| 10 | var _index2 = _interopRequireDefault(require("../transformers/serializers/value/index.cjs"));
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| 11 | class Visitor {
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| 12 | result;
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| 13 | offset;
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| 14 | includeRightBound;
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| 15 | constructor({
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| 16 | offset = 0,
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| 17 | includeRightBound = false
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| 18 | } = {}) {
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| 19 | this.result = [];
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| 20 | this.offset = offset;
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| 21 | this.includeRightBound = includeRightBound;
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| 22 | }
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| 23 | enter(element) {
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| 24 | if (!(0, _index.hasElementSourceMap)(element)) {
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| 25 | return undefined; // dive in
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| 26 | }
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| 27 | const sourceMapElement = element.getMetaProperty('sourceMap');
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| 28 | const charStart = (0, _index2.default)(sourceMapElement.positionStart.get(2));
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| 29 | const charEnd = (0, _index2.default)(sourceMapElement.positionEnd.get(2));
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| 30 | const isWithinOffsetRange = this.offset >= charStart && (this.offset < charEnd || this.includeRightBound && this.offset <= charEnd);
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| 31 | if (isWithinOffsetRange) {
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| 32 | this.result.push(element);
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| 33 | return undefined; // push to stack and dive in
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| 34 | }
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| 35 | return false; // skip entire sub-tree
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| 36 | }
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| 37 | }
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| 38 | // Finds the most inner node at the given offset.
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| 39 | // If includeRightBound is set, also finds nodes that end at the given offset.
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| 40 | // findAtOffset :: Number -> Element -> Element | Undefined
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| 41 | const findAtOffset = (options, element) => {
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| 42 | let offset;
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| 43 | let includeRightBound;
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| 44 | if ((0, _ramdaAdjunct.isNumber)(options)) {
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| 45 | offset = options;
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| 46 | includeRightBound = false;
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| 47 | } else {
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| 48 | offset = (0, _ramda.pathOr)(0, ['offset'], options);
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| 49 | includeRightBound = (0, _ramda.pathOr)(false, ['includeRightBound'], options);
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| 50 | }
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| 51 | const visitor = new Visitor({
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| 52 | offset,
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| 53 | includeRightBound
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| 54 | });
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| 55 | (0, _visitor.visit)(element, visitor);
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| 56 | return (0, _ramda.last)(visitor.result);
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| 57 | };
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| 58 | var _default = exports.default = findAtOffset; |
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