mirror of https://github.com/webpack/webpack.git
53 lines
1.2 KiB
JavaScript
53 lines
1.2 KiB
JavaScript
module.exports = function PluginEnvironment() {
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const events = [];
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function addEvent(name, handler) {
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events.push({
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name,
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handler
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});
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}
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function getEventName(hookName) {
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// Convert a hook name to an event name.
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// e.g. `buildModule` -> `build-module`
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return hookName.replace(/[A-Z]/g, c => "-" + c.toLowerCase());
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}
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this.getEnvironmentStub = function() {
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const hooks = new Map();
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return {
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plugin: addEvent,
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// TODO: Figure out a better way of doing this
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// In the meanwhile, `hooks` is a `Proxy` which creates fake hooks
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// on demand. Instead of creating a dummy object with a few `Hook`
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// method, a custom `Hook` class could be used.
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hooks: new Proxy({}, {
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get(target, hookName) {
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let hook = hooks.get(hookName);
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if (hook === undefined) {
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const eventName = getEventName(hookName);
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hook = {
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tap(_, handler) {
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addEvent(eventName, handler);
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},
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tapAsync(_, handler) {
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addEvent(eventName, handler);
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},
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tapPromise(_, handler) {
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addEvent(eventName, handler);
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}
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};
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hooks.set(hookName, hook);
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}
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return hook;
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}
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})
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};
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};
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this.getEventBindings = function() {
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return events;
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};
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};
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