1 |
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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 Template = require("./Template");
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8 | const ConstDependency = require("./dependencies/ConstDependency");
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9 | const ParserHelpers = require("./ParserHelpers");
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10 | const NullFactory = require("./NullFactory");
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11 |
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12 | const REPLACEMENTS = {
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13 |
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14 | __webpack_hash__: "__webpack_require__.h",
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15 |
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16 | __webpack_chunkname__: "__webpack_require__.cn"
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17 | };
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18 | const REPLACEMENT_TYPES = {
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19 |
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20 | __webpack_hash__: "string",
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21 |
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22 | __webpack_chunkname__: "string"
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23 | };
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24 |
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25 | class ExtendedAPIPlugin {
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26 | apply(compiler) {
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27 | compiler.hooks.compilation.tap(
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28 | "ExtendedAPIPlugin",
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29 | (compilation, { normalModuleFactory }) => {
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30 | compilation.dependencyFactories.set(ConstDependency, new NullFactory());
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31 | compilation.dependencyTemplates.set(
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32 | ConstDependency,
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33 | new ConstDependency.Template()
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34 | );
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35 |
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36 | const mainTemplate = compilation.mainTemplate;
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37 | mainTemplate.hooks.requireExtensions.tap(
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38 | "ExtendedAPIPlugin",
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39 | (source, chunk, hash) => {
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40 | const buf = [source];
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41 | buf.push("");
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42 | buf.push("// __webpack_hash__");
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43 | buf.push(`${mainTemplate.requireFn}.h = ${JSON.stringify(hash)};`);
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44 | buf.push("");
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45 | buf.push("// __webpack_chunkname__");
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46 | buf.push(
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47 | `${mainTemplate.requireFn}.cn = ${JSON.stringify(chunk.name)};`
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48 | );
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49 | return Template.asString(buf);
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50 | }
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51 | );
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52 | mainTemplate.hooks.globalHash.tap("ExtendedAPIPlugin", () => true);
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53 |
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54 | const handler = (parser, parserOptions) => {
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55 | Object.keys(REPLACEMENTS).forEach(key => {
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56 | parser.hooks.expression
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57 | .for(key)
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58 | .tap(
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59 | "ExtendedAPIPlugin",
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60 | ParserHelpers.toConstantDependencyWithWebpackRequire(
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61 | parser,
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62 | REPLACEMENTS[key]
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63 | )
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64 | );
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65 | parser.hooks.evaluateTypeof
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66 | .for(key)
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67 | .tap(
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68 | "ExtendedAPIPlugin",
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69 | ParserHelpers.evaluateToString(REPLACEMENT_TYPES[key])
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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 | normalModuleFactory.hooks.parser
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75 | .for("javascript/auto")
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76 | .tap("ExtendedAPIPlugin", handler);
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77 | normalModuleFactory.hooks.parser
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78 | .for("javascript/dynamic")
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79 | .tap("ExtendedAPIPlugin", handler);
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80 | normalModuleFactory.hooks.parser
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81 | .for("javascript/esm")
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82 | .tap("ExtendedAPIPlugin", handler);
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83 | }
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84 | );
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85 | }
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86 | }
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87 |
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88 | module.exports = ExtendedAPIPlugin;
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