/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Tobias Koppers @sokra
*/
"use strict";
const RequireContextDependency = require("./RequireContextDependency");
/** @typedef {import("../Dependency").DependencyLocation} DependencyLocation */
/** @typedef {import("../javascript/JavascriptParser")} JavascriptParser */
/** @typedef {import("../javascript/JavascriptParser").Range} Range */
module.exports = class RequireContextDependencyParserPlugin {
/**
* @param {JavascriptParser} parser the parser
* @returns {void}
*/
apply(parser) {
parser.hooks.call
.for("require.context")
.tap("RequireContextDependencyParserPlugin", expr => {
let regExp = /^\.\/.*$/;
let recursive = true;
let mode = "sync";
switch (expr.arguments.length) {
case 4: {
const modeExpr = parser.evaluateExpression(expr.arguments[3]);
if (!modeExpr.isString()) return;
mode = /** @type {string} */ (modeExpr.string);
}
// falls through
case 3: {
const regExpExpr = parser.evaluateExpression(expr.arguments[2]);
if (!regExpExpr.isRegExp()) return;
regExp = /** @type {RegExp} */ (regExpExpr.regExp);
}
// falls through
case 2: {
const recursiveExpr = parser.evaluateExpression(expr.arguments[1]);
if (!recursiveExpr.isBoolean()) return;
recursive = /** @type {boolean} */ (recursiveExpr.bool);
}
// falls through
case 1: {
const requestExpr = parser.evaluateExpression(expr.arguments[0]);
if (!requestExpr.isString()) return;
const dep = new RequireContextDependency(
{
request: requestExpr.string,
recursive,
regExp,
mode,
category: "commonjs"
},
/** @type {Range} */ (expr.range)
);
dep.loc = /** @type {DependencyLocation} */ (expr.loc);
dep.optional = Boolean(parser.scope.inTry);
parser.state.current.addDependency(dep);
return true;
}
}
});
}
};