59 lines
1.8 KiB
JavaScript
59 lines
1.8 KiB
JavaScript
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/*
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MIT License http://www.opensource.org/licenses/mit-license.php
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Author Tobias Koppers @sokra
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*/
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"use strict";
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const RuntimeGlobals = require("../RuntimeGlobals");
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/** @typedef {import("../Module")} Module */
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/** @typedef {"exports" | "module.exports" | "this" | "Object.defineProperty(exports)" | "Object.defineProperty(module.exports)" | "Object.defineProperty(this)"} CommonJSDependencyBaseKeywords */
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/**
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* @param {CommonJSDependencyBaseKeywords} depBase commonjs dependency base
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* @param {Module} module module
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* @param {Set<string>} runtimeRequirements runtime requirements
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* @returns {[string, string]} type and base
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*/
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exports.handleDependencyBase = (depBase, module, runtimeRequirements) => {
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let base = undefined;
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let type;
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switch (depBase) {
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case "exports":
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runtimeRequirements.add(RuntimeGlobals.exports);
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base = module.exportsArgument;
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type = "expression";
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break;
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case "module.exports":
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runtimeRequirements.add(RuntimeGlobals.module);
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base = `${module.moduleArgument}.exports`;
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type = "expression";
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break;
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case "this":
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runtimeRequirements.add(RuntimeGlobals.thisAsExports);
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base = "this";
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type = "expression";
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break;
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case "Object.defineProperty(exports)":
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runtimeRequirements.add(RuntimeGlobals.exports);
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base = module.exportsArgument;
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type = "Object.defineProperty";
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break;
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case "Object.defineProperty(module.exports)":
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runtimeRequirements.add(RuntimeGlobals.module);
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base = `${module.moduleArgument}.exports`;
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type = "Object.defineProperty";
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break;
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case "Object.defineProperty(this)":
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runtimeRequirements.add(RuntimeGlobals.thisAsExports);
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base = "this";
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type = "Object.defineProperty";
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break;
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default:
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throw new Error(`Unsupported base ${depBase}`);
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}
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return [type, base];
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};
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