初始化

cnf

2025-05-10 386fa0eca75ddc88165f9b73038f2a2239e1072e

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/*
    MIT License http://www.opensource.org/licenses/mit-license.php
    Author Florent Cailhol @ooflorent
*/
 
"use strict";
 
const ConstDependency = require("./ConstDependency");
const HarmonyExports = require("./HarmonyExports");
 
/** @typedef {import("../Dependency").DependencyLocation} DependencyLocation */
/** @typedef {import("../javascript/JavascriptParser")} JavascriptParser */
/** @typedef {import("../javascript/JavascriptParser").Range} Range */
 
const PLUGIN_NAME = "HarmonyTopLevelThisParserPlugin";
 
class HarmonyTopLevelThisParserPlugin {
    /**
     * @param {JavascriptParser} parser the parser
     * @returns {void}
     */
    apply(parser) {
        parser.hooks.expression.for("this").tap(PLUGIN_NAME, node => {
            if (!parser.scope.topLevelScope) return;
            if (HarmonyExports.isEnabled(parser.state)) {
                const dep = new ConstDependency(
                    "undefined",
                    /** @type {Range} */ (node.range),
                    null
                );
                dep.loc = /** @type {DependencyLocation} */ (node.loc);
                parser.state.module.addPresentationalDependency(dep);
                return true;
            }
        });
    }
}
 
module.exports = HarmonyTopLevelThisParserPlugin;