47 lines
1001 B
TypeScript
47 lines
1001 B
TypeScript
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export type SortAfter = 1;
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export type SortBefore = -1;
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export type SortEqual = 0;
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export type SortOrder = SortAfter | SortBefore | SortEqual;
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/**
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* Comparison predicate for arity 0 - assert?
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*
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* @beta
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*/
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export type PredicateC0 = () => boolean;
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/**
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* Comparison predicate for arity 1 - filter.
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*
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* @beta
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*/
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export type PredicateC1<TVal> = (val: TVal, idx: number, list: Array<TVal>) => boolean;
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/**
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* Comparison predicate for arity 2 - sort.
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*
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* @beta
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*/
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export type PredicateC2<TVal> = (pval: TVal, nval: TVal, idx: number, list: Array<TVal>) => SortOrder;
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/**
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* Transform predicate for arity 0 - constructor.
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*
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* @beta
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*/
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export type PredicateR0<TVal> = () => TVal;
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/**
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* Transform predicate for arity 1 - map.
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*
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* @beta
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*/
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export type PredicateR1<TVal> = (val: TVal, idx: number, list: Array<TVal>) => TVal;
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/**
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* Transform predicate for arity 2 - reduce.
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*
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* @beta
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*/
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export type PredicateR2<TVal> = (pval: TVal, nval: TVal, idx: number, list: Array<TVal>) => TVal;
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