Robin Malfait
25 lines
672 B
TypeScript
25 lines
672 B
TypeScript
export function match<TValue extends string | number = string, TReturnValue = unknown>(
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value: TValue,
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lookup: Record<TValue, TReturnValue | ((...args: any[]) => TReturnValue)>,
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...args: any[]
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): TReturnValue {
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if (value in lookup) {
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const returnValue = lookup[value]
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return typeof returnValue === 'function' ? returnValue(...args) : returnValue
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}
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const error = new Error(
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`Tried to handle "${value}" but there is no handler defined. Only defined handlers are: ${Object.keys(
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lookup
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)
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.map(key => `"${key}"`)
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.join(', ')}.`
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)
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if (Error.captureStackTrace) {
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Error.captureStackTrace(error, match)
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}
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throw error
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}
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