You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
70 lines
2.0 KiB
70 lines
2.0 KiB
/*
|
|
MIT License http://www.opensource.org/licenses/mit-license.php
|
|
Author Tobias Koppers @sokra
|
|
*/
|
|
"use strict";
|
|
|
|
const ConstDependency = require("./dependencies/ConstDependency");
|
|
|
|
const NullFactory = require("./NullFactory");
|
|
|
|
/** @typedef {import("./Compiler")} Compiler */
|
|
|
|
class CompatibilityPlugin {
|
|
/**
|
|
* Apply the plugin
|
|
* @param {Compiler} compiler Webpack Compiler
|
|
* @returns {void}
|
|
*/
|
|
apply(compiler) {
|
|
compiler.hooks.compilation.tap(
|
|
"CompatibilityPlugin",
|
|
(compilation, { normalModuleFactory }) => {
|
|
compilation.dependencyFactories.set(ConstDependency, new NullFactory());
|
|
compilation.dependencyTemplates.set(
|
|
ConstDependency,
|
|
new ConstDependency.Template()
|
|
);
|
|
|
|
normalModuleFactory.hooks.parser
|
|
.for("javascript/auto")
|
|
.tap("CompatibilityPlugin", (parser, parserOptions) => {
|
|
if (
|
|
parserOptions.browserify !== undefined &&
|
|
!parserOptions.browserify
|
|
)
|
|
return;
|
|
|
|
parser.hooks.call
|
|
.for("require")
|
|
.tap("CompatibilityPlugin", expr => {
|
|
// support for browserify style require delegator: "require(o, !0)"
|
|
if (expr.arguments.length !== 2) return;
|
|
const second = parser.evaluateExpression(expr.arguments[1]);
|
|
if (!second.isBoolean()) return;
|
|
if (second.asBool() !== true) return;
|
|
const dep = new ConstDependency("require", expr.callee.range);
|
|
dep.loc = expr.loc;
|
|
if (parser.state.current.dependencies.length > 1) {
|
|
const last =
|
|
parser.state.current.dependencies[
|
|
parser.state.current.dependencies.length - 1
|
|
];
|
|
if (
|
|
last.critical &&
|
|
last.options &&
|
|
last.options.request === "." &&
|
|
last.userRequest === "." &&
|
|
last.options.recursive
|
|
)
|
|
parser.state.current.dependencies.pop();
|
|
}
|
|
parser.state.current.addDependency(dep);
|
|
return true;
|
|
});
|
|
});
|
|
}
|
|
);
|
|
}
|
|
}
|
|
module.exports = CompatibilityPlugin;
|