@dipscope/type-manager/dist/es2015/inject.js

Transform JSON strings or plain objects into JS class instances.

import { nameOf } from './functions/name-of';
import { TypeManager } from './type-manager';
export function Inject(x) {
    const injectOptions = (typeof x === 'object' ? x : {});
    if (injectOptions.key === undefined && typeof x === 'string') {
        injectOptions.key = x;
    }
    if (injectOptions.typeArgument === undefined && typeof x === 'function') {
        injectOptions.typeArgument = x;
    }
    return function (target, propertyName, injectIndex) {
        if (typeof target === 'function' && target.name === '') {
            throw new Error(`${nameOf(target.constructor)}.${String(propertyName)}: inject decorator cannot be applied to a method.`);
        }
        if (typeof injectIndex !== 'number') {
            throw new Error(`${nameOf(target)}.${String(propertyName)}: inject decorator cannot be applied to a property.`);
        }
        const typeFn = target;
        TypeManager.configureTypeMetadata(typeFn).configureInjectMetadata(injectIndex, injectOptions);
        return;
    };
}
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