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6 | "use strict";
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7 |
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8 | const { join, dirname } = require("./util/fs");
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9 |
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10 |
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11 |
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12 |
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13 | class NormalModuleReplacementPlugin {
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14 | |
15 |
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16 |
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17 |
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18 |
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19 | constructor(resourceRegExp, newResource) {
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20 | this.resourceRegExp = resourceRegExp;
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21 | this.newResource = newResource;
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22 | }
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23 |
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24 | |
25 |
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26 |
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27 |
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28 |
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29 | apply(compiler) {
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30 | const resourceRegExp = this.resourceRegExp;
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31 | const newResource = this.newResource;
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32 | compiler.hooks.normalModuleFactory.tap(
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33 | "NormalModuleReplacementPlugin",
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34 | nmf => {
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35 | nmf.hooks.beforeResolve.tap("NormalModuleReplacementPlugin", result => {
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36 | if (resourceRegExp.test(result.request)) {
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37 | if (typeof newResource === "function") {
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38 | newResource(result);
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39 | } else {
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40 | result.request = newResource;
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41 | }
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42 | }
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43 | });
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44 | nmf.hooks.afterResolve.tap("NormalModuleReplacementPlugin", result => {
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45 | const createData = result.createData;
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46 | if (resourceRegExp.test(createData.resource)) {
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47 | if (typeof newResource === "function") {
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48 | newResource(result);
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49 | } else {
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50 | const fs = compiler.inputFileSystem;
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51 | if (
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52 | newResource.startsWith("/") ||
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53 | (newResource.length > 1 && newResource[1] === ":")
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54 | ) {
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55 | createData.resource = newResource;
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56 | } else {
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57 | createData.resource = join(
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58 | fs,
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59 | dirname(fs, createData.resource),
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60 | newResource
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61 | );
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62 | }
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63 | }
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64 | }
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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 | }
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70 |
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71 | module.exports = NormalModuleReplacementPlugin;
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