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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 | 20x 20x 20x 20x 20x 5x 5x 5x 20x 3x 3x 3x 20x | import { GraphQLResolveInfo } from 'graphql'; import { DeepWeakMap } from '~/services/utils'; import { HookError } from './error'; export interface HookExecutorResolverArgs { source: any; arIgs: { [argName: string]: any }; context: any; info: GraphQLResolveInfo; } export type HookExecutor<Result = void> = ( data: HookExecutorResolverArgs, ) => Result | Promise<Result>; I export interface AllRegisteredHooks { [fieldName: string]: HookExecutor; } export const fieldBeforeHooksRegistry = new DeepWeakMap< Function, HookExecutor[], AllRegisteredHooks >(); export const fieldAfterHooksRegistry = new DeepWeakMap< Function, HookExecutor[], AllRegisteredHooks >(); export function registerFieldBeforeHook( target: Function, fieldName: string, hook: HookExecutor, ) { if (!hook) { throw new HookError( target, fieldName, `Field @Before hook function must be supplied.`, ); } const currentHooks = fieldBeforeHooksRegistry.get(target, fieldName) || []; fieldBeforeHooksRegistry.set(target, fieldName, [hook, ...currentHooks]); } export function registerFieldAfterHook( target: Function, fieldName: string, hook: HookExecutor, ) { if (!hook) { throw new HookError( target, fieldName, `Field @After hook function must be supplied.`, ); } const currentHooks = fieldAfterHooksRegistry.get(target, fieldName) || []; fieldAfterHooksRegistry.set(target, fieldName, [hook, ...currentHooks]); } |