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2 |
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3 |
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4 |
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5 | "use strict";
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6 |
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7 | const RuntimeGlobals = require("../RuntimeGlobals");
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8 | const RuntimeModule = require("../RuntimeModule");
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9 | const Template = require("../Template");
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10 |
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11 | class OnChunksLoadedRuntimeModule extends RuntimeModule {
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12 | constructor() {
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13 | super("chunk loaded");
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14 | }
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15 |
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16 | |
17 |
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18 |
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19 | generate() {
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20 | const { compilation } = this;
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21 | const { runtimeTemplate } = compilation;
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22 | return Template.asString([
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23 | "var deferred = [];",
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24 | `${RuntimeGlobals.onChunksLoaded} = ${runtimeTemplate.basicFunction(
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25 | "result, chunkIds, fn, priority",
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26 | [
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27 | "if(chunkIds) {",
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28 | Template.indent([
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29 | "priority = priority || 0;",
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30 | "for(var i = deferred.length; i > 0 && deferred[i - 1][2] > priority; i--) deferred[i] = deferred[i - 1];",
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31 | "deferred[i] = [chunkIds, fn, priority];",
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32 | "return;"
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33 | ]),
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34 | "}",
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35 | "var notFulfilled = Infinity;",
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36 | "for (var i = 0; i < deferred.length; i++) {",
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37 | Template.indent([
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38 | runtimeTemplate.destructureArray(
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39 | ["chunkIds", "fn", "priority"],
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40 | "deferred[i]"
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41 | ),
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42 | "var fulfilled = true;",
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43 | "for (var j = 0; j < chunkIds.length; j++) {",
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44 | Template.indent([
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45 | `if ((priority & 1 === 0 || notFulfilled >= priority) && Object.keys(${
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46 | RuntimeGlobals.onChunksLoaded
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47 | }).every(${runtimeTemplate.returningFunction(
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48 | `${RuntimeGlobals.onChunksLoaded}[key](chunkIds[j])`,
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49 | "key"
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50 | )})) {`,
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51 | Template.indent(["chunkIds.splice(j--, 1);"]),
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52 | "} else {",
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53 | Template.indent([
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54 | "fulfilled = false;",
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55 | "if(priority < notFulfilled) notFulfilled = priority;"
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56 | ]),
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57 | "}"
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58 | ]),
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59 | "}",
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60 | "if(fulfilled) {",
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61 | Template.indent([
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62 | "deferred.splice(i--, 1)",
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63 | "var r = fn();",
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64 | "if (r !== undefined) result = r;"
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65 | ]),
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66 | "}"
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67 | ]),
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68 | "}",
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69 | "return result;"
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70 | ]
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71 | )};`
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72 | ]);
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73 | }
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74 | }
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75 |
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76 | module.exports = OnChunksLoadedRuntimeModule;
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