Created
April 7, 2020 15:28
-
-
Save jsmanifest/6fe35e60d7f0c1d3af70868cd90f8be3 to your computer and use it in GitHub Desktop.
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
class DIC { | |
constructor() { | |
this.dependencies = {} | |
this.factories = {} | |
} | |
register(name, dependency) { | |
this.dependencies[name] = dependency | |
} | |
factory(name, factory) { | |
this.factories[name] = factory | |
} | |
get(name, args) { | |
if (!this.dependencies[name]) { | |
const factory = this.factories[name] | |
if (factory) { | |
this.dependencies[name] = this.inject(factory, args) | |
} else { | |
throw new Error('No module found for: ' + name) | |
} | |
} | |
return this.dependencies[name] | |
} | |
inject(factory, args = []) { | |
const fnArgs = args.map((arg) => this.get(arg)) | |
return new factory(...fnArgs) | |
} | |
} |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment