| 1 | import { ContainerInstance } from '../container-instance.class';
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| 2 | import { Constructable } from '../types/constructable.type';
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| 3 | /**
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| 4 | * Used to register special "handler" which will be executed on a service class during its initialization.
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| 5 | * It can be used to create custom decorators and set/replace service class properties and constructor parameters.
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| 6 | */
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| 7 | export interface Handler<T = unknown> {
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| 8 | /**
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| 9 | * Service object used to apply handler to.
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| 10 | */
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| 11 | object: Constructable<T>;
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| 12 | /**
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| 13 | * Class property name to set/replace value of.
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| 14 | * Used if handler is applied on a class property.
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| 15 | */
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| 16 | propertyName?: string;
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| 17 | /**
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| 18 | * Parameter index to set/replace value of.
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| 19 | * Used if handler is applied on a constructor parameter.
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| 20 | */
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| 21 | index?: number;
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| 22 | /**
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| 23 | * Factory function that produces value that will be set to class property or constructor parameter.
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| 24 | * Accepts container instance which requested the value.
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| 25 | */
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| 26 | value: (container: ContainerInstance) => any;
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| 27 | }
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