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36 lines
1.5 KiB
Plaintext
36 lines
1.5 KiB
Plaintext
import { CreateType } from '../create/type.mjs';
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import { Literal } from '../literal/index.mjs';
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import { Number } from '../number/index.mjs';
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import { Computed } from '../computed/index.mjs';
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import { Ref } from '../ref/index.mjs';
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import { KeyOfPropertyKeys } from './keyof-property-keys.mjs';
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import { UnionEvaluated } from '../union/index.mjs';
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import { KeyOfFromMappedResult } from './keyof-from-mapped-result.mjs';
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// ------------------------------------------------------------------
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// TypeGuard
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// ------------------------------------------------------------------
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import { IsMappedResult, IsRef, IsComputed } from '../guard/kind.mjs';
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// prettier-ignore
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function FromComputed(target, parameters) {
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return Computed('KeyOf', [Computed(target, parameters)]);
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}
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// prettier-ignore
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function FromRef($ref) {
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return Computed('KeyOf', [Ref($ref)]);
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}
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// prettier-ignore
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function KeyOfFromType(type, options) {
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const propertyKeys = KeyOfPropertyKeys(type);
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const propertyKeyTypes = KeyOfPropertyKeysToRest(propertyKeys);
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const result = UnionEvaluated(propertyKeyTypes);
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return CreateType(result, options);
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}
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// prettier-ignore
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export function KeyOfPropertyKeysToRest(propertyKeys) {
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return propertyKeys.map(L => L === '[number]' ? Number() : Literal(L));
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}
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/** `[Json]` Creates a KeyOf type */
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export function KeyOf(type, options) {
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return (IsComputed(type) ? FromComputed(type.target, type.parameters) : IsRef(type) ? FromRef(type.$ref) : IsMappedResult(type) ? KeyOfFromMappedResult(type, options) : KeyOfFromType(type, options));
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}
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