1 | /**
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2 | * @license
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3 | * Copyright Google LLC All Rights Reserved.
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4 | *
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5 | * Use of this source code is governed by an MIT-style license that can be
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6 | * found in the LICENSE file at https://angular.io/license
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7 | */
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8 | (function (factory) {
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9 | if (typeof module === "object" && typeof module.exports === "object") {
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10 | var v = factory(require, exports);
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11 | if (v !== undefined) module.exports = v;
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12 | }
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13 | else if (typeof define === "function" && define.amd) {
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14 | define("@angular/compiler/src/ast_path", ["require", "exports"], factory);
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15 | }
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16 | })(function (require, exports) {
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17 | "use strict";
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18 | Object.defineProperty(exports, "__esModule", { value: true });
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19 | exports.AstPath = void 0;
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20 | /**
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21 | * A path is an ordered set of elements. Typically a path is to a
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22 | * particular offset in a source file. The head of the list is the top
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23 | * most node. The tail is the node that contains the offset directly.
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24 | *
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25 | * For example, the expression `a + b + c` might have an ast that looks
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26 | * like:
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27 | * +
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28 | * / \
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29 | * a +
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30 | * / \
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31 | * b c
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32 | *
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33 | * The path to the node at offset 9 would be `['+' at 1-10, '+' at 7-10,
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34 | * 'c' at 9-10]` and the path the node at offset 1 would be
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35 | * `['+' at 1-10, 'a' at 1-2]`.
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36 | */
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37 | var AstPath = /** @class */ (function () {
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38 | function AstPath(path, position) {
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39 | if (position === void 0) { position = -1; }
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40 | this.path = path;
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41 | this.position = position;
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42 | }
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43 | Object.defineProperty(AstPath.prototype, "empty", {
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44 | get: function () {
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45 | return !this.path || !this.path.length;
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46 | },
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47 | enumerable: false,
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48 | configurable: true
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49 | });
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50 | Object.defineProperty(AstPath.prototype, "head", {
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51 | get: function () {
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52 | return this.path[0];
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53 | },
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54 | enumerable: false,
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55 | configurable: true
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56 | });
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57 | Object.defineProperty(AstPath.prototype, "tail", {
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58 | get: function () {
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59 | return this.path[this.path.length - 1];
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60 | },
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61 | enumerable: false,
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62 | configurable: true
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63 | });
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64 | AstPath.prototype.parentOf = function (node) {
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65 | return node && this.path[this.path.indexOf(node) - 1];
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66 | };
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67 | AstPath.prototype.childOf = function (node) {
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68 | return this.path[this.path.indexOf(node) + 1];
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69 | };
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70 | AstPath.prototype.first = function (ctor) {
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71 | for (var i = this.path.length - 1; i >= 0; i--) {
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72 | var item = this.path[i];
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73 | if (item instanceof ctor)
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74 | return item;
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75 | }
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76 | };
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77 | AstPath.prototype.push = function (node) {
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78 | this.path.push(node);
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79 | };
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80 | AstPath.prototype.pop = function () {
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81 | return this.path.pop();
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82 | };
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83 | return AstPath;
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84 | }());
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85 | exports.AstPath = AstPath;
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86 | });
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87 | //# sourceMappingURL=data:application/json;base64,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 |
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