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62 lines
2.2 KiB
62 lines
2.2 KiB
import {AppClass} from '../lifecycle/AppClass'
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/**
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* Interface for a class that receives its canonical resolver names upon load.
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*/
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export interface CanonicalReceiver {
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setCanonicalResolver(fullyQualifiedResolver: string, unqualifiedResolver: string): void
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getCanonicalResolver(): string | undefined
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getFullyQualifiedCanonicalResolver(): string | undefined
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}
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/**
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* Function that checks whether a given value satisfies the CanonicalReceiver interface.
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* @param something
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*/
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export function isCanonicalReceiver(something: unknown): something is CanonicalReceiver {
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return (
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typeof something === 'function'
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&& typeof (something as any).setCanonicalResolver === 'function'
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&& (something as any).setCanonicalResolver.length >= 1
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&& typeof (something as any).getCanonicalResolver === 'function'
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&& (something as any).getCanonicalResolver.length === 0
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)
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}
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/**
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* Base class for canonical items that implements the CanonicalReceiver interface.
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* That is, `isCanonicalReceiver(CanonicalItemClass) === true`.
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*/
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export class CanonicalItemClass extends AppClass {
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/** The type-prefixed canonical resolver of this class, set by the startup unit. */
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private static canonFullyQualifiedResolver?: string
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/** The unqualified canonical resolver of this class, set by the startup unit. */
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private static canonUnqualifiedResolver?: string
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/**
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* Sets the fully- and un-qualified canonical resolver strings. Intended for use
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* by the Canonical unit.
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* @param fullyQualifiedResolver
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* @param unqualifiedResolver
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*/
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public static setCanonicalResolver(fullyQualifiedResolver: string, unqualifiedResolver: string): void {
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this.canonFullyQualifiedResolver = fullyQualifiedResolver
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this.canonUnqualifiedResolver = unqualifiedResolver
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}
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/**
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* Get the fully-qualified canonical resolver of this class, if one has been set.
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*/
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public static getFullyQualifiedCanonicalResolver(): string | undefined {
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return this.canonFullyQualifiedResolver
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}
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/**
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* Get the unqualified canonical resolver of this class, if one has been set.
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*/
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public static getCanonicalResolver(): string | undefined {
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return this.canonUnqualifiedResolver
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}
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}
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