1 | /*
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2 | MIT License http://www.opensource.org/licenses/mit-license.php
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3 | Author Tobias Koppers @sokra
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4 | */
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5 |
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6 | "use strict";
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7 |
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8 | const RuntimeGlobals = require("../RuntimeGlobals");
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9 | const makeSerializable = require("../util/makeSerializable");
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10 | const NullDependency = require("./NullDependency");
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11 |
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12 | /** @typedef {import("webpack-sources").ReplaceSource} ReplaceSource */
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13 | /** @typedef {import("../AsyncDependenciesBlock")} AsyncDependenciesBlock */
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14 | /** @typedef {import("../Dependency")} Dependency */
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15 | /** @typedef {import("../DependencyTemplate").DependencyTemplateContext} DependencyTemplateContext */
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16 |
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17 | class RequireEnsureDependency extends NullDependency {
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18 | constructor(range, contentRange, errorHandlerRange) {
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19 | super();
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20 |
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21 | this.range = range;
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22 | this.contentRange = contentRange;
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23 | this.errorHandlerRange = errorHandlerRange;
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24 | }
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25 |
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26 | get type() {
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27 | return "require.ensure";
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28 | }
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29 |
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30 | serialize(context) {
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31 | const { write } = context;
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32 |
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33 | write(this.range);
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34 | write(this.contentRange);
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35 | write(this.errorHandlerRange);
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36 |
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37 | super.serialize(context);
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38 | }
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39 |
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40 | deserialize(context) {
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41 | const { read } = context;
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42 |
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43 | this.range = read();
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44 | this.contentRange = read();
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45 | this.errorHandlerRange = read();
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46 |
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47 | super.deserialize(context);
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48 | }
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49 | }
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50 |
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51 | makeSerializable(
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52 | RequireEnsureDependency,
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53 | "webpack/lib/dependencies/RequireEnsureDependency"
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54 | );
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55 |
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56 | RequireEnsureDependency.Template = class RequireEnsureDependencyTemplate extends (
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57 | NullDependency.Template
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58 | ) {
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59 | /**
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60 | * @param {Dependency} dependency the dependency for which the template should be applied
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61 | * @param {ReplaceSource} source the current replace source which can be modified
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62 | * @param {DependencyTemplateContext} templateContext the context object
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63 | * @returns {void}
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64 | */
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65 | apply(
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66 | dependency,
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67 | source,
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68 | { runtimeTemplate, moduleGraph, chunkGraph, runtimeRequirements }
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69 | ) {
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70 | const dep = /** @type {RequireEnsureDependency} */ (dependency);
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71 | const depBlock = /** @type {AsyncDependenciesBlock} */ (
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72 | moduleGraph.getParentBlock(dep)
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73 | );
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74 | const promise = runtimeTemplate.blockPromise({
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75 | chunkGraph,
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76 | block: depBlock,
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77 | message: "require.ensure",
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78 | runtimeRequirements
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79 | });
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80 | const range = dep.range;
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81 | const contentRange = dep.contentRange;
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82 | const errorHandlerRange = dep.errorHandlerRange;
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83 | source.replace(range[0], contentRange[0] - 1, `${promise}.then((`);
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84 | if (errorHandlerRange) {
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85 | source.replace(
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86 | contentRange[1],
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87 | errorHandlerRange[0] - 1,
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88 | ").bind(null, __webpack_require__)).catch("
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89 | );
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90 | source.replace(errorHandlerRange[1], range[1] - 1, ")");
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91 | } else {
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92 | source.replace(
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93 | contentRange[1],
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94 | range[1] - 1,
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95 | `).bind(null, __webpack_require__)).catch(${RuntimeGlobals.uncaughtErrorHandler})`
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96 | );
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97 | }
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98 | }
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99 | };
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100 |
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101 | module.exports = RequireEnsureDependency;
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