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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 | 1x 9x 15x 3x 1x 2x 12x 12x 2x 10x 1x 9x | import type { ValidParameterTypeName, RawParameterType } from './ValidParameterTypeName'; export class ParameterContainer { public constructor( private readonly data: Record<string, unknown> ) {} public parameter<TypeName extends ValidParameterTypeName>(key: PropertyKey, expectedTypes: Set<TypeName>): RawParameterType<TypeName> { if (!(key in this.data)) { if ((expectedTypes as Set<string>).has('undefined')) return null as RawParameterType<TypeName>; throw new Error(`No ${String(key)} in parameters.`); } const parameter = (this.data as Record<PropertyKey, unknown>)[key]; if (!(expectedTypes as Set<string>).has(typeof parameter)) throw new Error(`Parameter ${String(key)} has an invalid type: ${typeof parameter}`); if (parameter === undefined) return null as RawParameterType<TypeName>; return parameter as RawParameterType<TypeName>; } } |