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22 lines
530 B
TypeScript
22 lines
530 B
TypeScript
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// Loaded from https://deno.land/x/cliffy@v0.18.0/flags/types/boolean.ts
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import type { ITypeHandler, ITypeInfo } from "../types.ts";
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/** Boolean type handler. Excepts `true`, `false`, `1`, `0` */
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export const boolean: ITypeHandler<boolean> = (
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{ label, name, value, type }: ITypeInfo,
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): boolean => {
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if (~["1", "true"].indexOf(value)) {
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return true;
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}
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if (~["0", "false"].indexOf(value)) {
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return false;
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}
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throw new Error(
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`${label} "${name}" must be of type "${type}", but got "${value}".`,
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);
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};
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