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19 lines
795 B
Plaintext
19 lines
795 B
Plaintext
import { Literal } from '../literal/index.mjs';
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import { Kind, Hint } from '../symbols/index.mjs';
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import { Union } from '../union/index.mjs';
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// ------------------------------------------------------------------
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// ValueGuard
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// ------------------------------------------------------------------
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import { IsUndefined } from '../guard/value.mjs';
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/** `[Json]` Creates a Enum type */
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export function Enum(item, options) {
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if (IsUndefined(item))
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throw new Error('Enum undefined or empty');
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const values1 = globalThis.Object.getOwnPropertyNames(item)
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.filter((key) => isNaN(key))
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.map((key) => item[key]);
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const values2 = [...new Set(values1)];
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const anyOf = values2.map((value) => Literal(value));
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return Union(anyOf, { ...options, [Hint]: 'Enum' });
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}
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