CommonJsStuffPlugin.js
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/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Tobias Koppers @sokra
*/
"use strict";
const path = require("path");
const ParserHelpers = require("./ParserHelpers");
class CommonJsStuffPlugin {
apply(compiler) {
compiler.hooks.compilation.tap(
"CommonJsStuffPlugin",
(compilation, { normalModuleFactory }) => {
const handler = (parser, parserOptions) => {
parser.hooks.expression
.for("require.main.require")
.tap(
"CommonJsStuffPlugin",
ParserHelpers.expressionIsUnsupported(
parser,
"require.main.require is not supported by webpack."
)
);
parser.hooks.expression
.for("module.parent.require")
.tap(
"CommonJsStuffPlugin",
ParserHelpers.expressionIsUnsupported(
parser,
"module.parent.require is not supported by webpack."
)
);
parser.hooks.expression
.for("require.main")
.tap(
"CommonJsStuffPlugin",
ParserHelpers.toConstantDependencyWithWebpackRequire(
parser,
"__webpack_require__.c[__webpack_require__.s]"
)
);
parser.hooks.expression
.for("module.loaded")
.tap("CommonJsStuffPlugin", expr => {
parser.state.module.buildMeta.moduleConcatenationBailout =
"module.loaded";
return ParserHelpers.toConstantDependency(
parser,
"module.l"
)(expr);
});
parser.hooks.expression
.for("module.id")
.tap("CommonJsStuffPlugin", expr => {
parser.state.module.buildMeta.moduleConcatenationBailout =
"module.id";
return ParserHelpers.toConstantDependency(
parser,
"module.i"
)(expr);
});
parser.hooks.expression
.for("module.exports")
.tap("CommonJsStuffPlugin", () => {
const module = parser.state.module;
const isHarmony =
module.buildMeta && module.buildMeta.exportsType;
if (!isHarmony) return true;
});
parser.hooks.evaluateIdentifier
.for("module.hot")
.tap(
"CommonJsStuffPlugin",
ParserHelpers.evaluateToIdentifier("module.hot", false)
);
parser.hooks.expression
.for("module")
.tap("CommonJsStuffPlugin", () => {
const module = parser.state.module;
const isHarmony =
module.buildMeta && module.buildMeta.exportsType;
let moduleJsPath = path.join(
__dirname,
"..",
"buildin",
isHarmony ? "harmony-module.js" : "module.js"
);
if (module.context) {
moduleJsPath = path.relative(
parser.state.module.context,
moduleJsPath
);
if (!/^[A-Z]:/i.test(moduleJsPath)) {
moduleJsPath = `./${moduleJsPath.replace(/\\/g, "/")}`;
}
}
return ParserHelpers.addParsedVariableToModule(
parser,
"module",
`require(${JSON.stringify(moduleJsPath)})(module)`
);
});
};
normalModuleFactory.hooks.parser
.for("javascript/auto")
.tap("CommonJsStuffPlugin", handler);
normalModuleFactory.hooks.parser
.for("javascript/dynamic")
.tap("CommonJsStuffPlugin", handler);
}
);
}
}
module.exports = CommonJsStuffPlugin;