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6 | "use strict";
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7 |
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8 | const RequireContextDependency = require("./RequireContextDependency");
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9 |
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10 | module.exports = class RequireContextDependencyParserPlugin {
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11 | apply(parser) {
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12 | parser.hooks.call
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13 | .for("require.context")
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14 | .tap("RequireContextDependencyParserPlugin", expr => {
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15 | let regExp = /^\.\/.*$/;
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16 | let recursive = true;
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17 | let mode = "sync";
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18 | switch (expr.arguments.length) {
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19 | case 4: {
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20 | const modeExpr = parser.evaluateExpression(expr.arguments[3]);
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21 | if (!modeExpr.isString()) return;
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22 | mode = modeExpr.string;
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23 | }
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24 |
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25 | case 3: {
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26 | const regExpExpr = parser.evaluateExpression(expr.arguments[2]);
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27 | if (!regExpExpr.isRegExp()) return;
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28 | regExp = regExpExpr.regExp;
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29 | }
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30 |
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31 | case 2: {
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32 | const recursiveExpr = parser.evaluateExpression(expr.arguments[1]);
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33 | if (!recursiveExpr.isBoolean()) return;
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34 | recursive = recursiveExpr.bool;
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35 | }
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36 |
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37 | case 1: {
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38 | const requestExpr = parser.evaluateExpression(expr.arguments[0]);
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39 | if (!requestExpr.isString()) return;
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40 | const dep = new RequireContextDependency(
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41 | {
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42 | request: requestExpr.string,
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43 | recursive,
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44 | regExp,
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45 | mode,
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46 | category: "commonjs"
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47 | },
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48 | expr.range
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49 | );
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50 | dep.loc = expr.loc;
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51 | dep.optional = !!parser.scope.inTry;
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52 | parser.state.current.addDependency(dep);
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53 | return true;
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54 | }
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55 | }
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56 | });
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57 | }
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58 | };
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