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 ConstDependency = require("./dependencies/ConstDependency");
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9 | const ExportsInfoDependency = require("./dependencies/ExportsInfoDependency");
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10 |
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11 | /** @typedef {import("./Compiler")} Compiler */
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12 | /** @typedef {import("./javascript/JavascriptParser")} JavascriptParser */
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13 |
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14 | class ExportsInfoApiPlugin {
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15 | /**
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16 | * Apply the plugin
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17 | * @param {Compiler} compiler the compiler instance
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18 | * @returns {void}
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19 | */
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20 | apply(compiler) {
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21 | compiler.hooks.compilation.tap(
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22 | "ExportsInfoApiPlugin",
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23 | (compilation, { normalModuleFactory }) => {
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24 | compilation.dependencyTemplates.set(
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25 | ExportsInfoDependency,
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26 | new ExportsInfoDependency.Template()
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27 | );
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28 | /**
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29 | * @param {JavascriptParser} parser the parser
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30 | * @returns {void}
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31 | */
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32 | const handler = parser => {
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33 | parser.hooks.expressionMemberChain
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34 | .for("__webpack_exports_info__")
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35 | .tap("ExportsInfoApiPlugin", (expr, members) => {
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36 | const dep =
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37 | members.length >= 2
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38 | ? new ExportsInfoDependency(
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39 | expr.range,
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40 | members.slice(0, -1),
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41 | members[members.length - 1]
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42 | )
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43 | : new ExportsInfoDependency(expr.range, null, members[0]);
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44 | dep.loc = expr.loc;
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45 | parser.state.module.addDependency(dep);
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46 | return true;
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47 | });
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48 | parser.hooks.expression
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49 | .for("__webpack_exports_info__")
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50 | .tap("ExportsInfoApiPlugin", expr => {
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51 | const dep = new ConstDependency("true", expr.range);
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52 | dep.loc = expr.loc;
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53 | parser.state.module.addPresentationalDependency(dep);
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54 | return true;
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55 | });
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56 | };
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57 | normalModuleFactory.hooks.parser
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58 | .for("javascript/auto")
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59 | .tap("ExportsInfoApiPlugin", handler);
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60 | normalModuleFactory.hooks.parser
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61 | .for("javascript/dynamic")
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62 | .tap("ExportsInfoApiPlugin", handler);
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63 | normalModuleFactory.hooks.parser
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64 | .for("javascript/esm")
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65 | .tap("ExportsInfoApiPlugin", handler);
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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 = ExportsInfoApiPlugin;
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