93 lines
2.3 KiB
JavaScript
93 lines
2.3 KiB
JavaScript
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/**
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* Less strict version of [`match`](#match).
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*
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* The `W` suffix (short for **W**idening) means that the handler return types will be merged.
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*
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* @category pattern matching
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* @since 2.12.0
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*/
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export var matchW = function (onLessThan, onEqual, onGreaterThan) {
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return function (o) {
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return o === -1 ? onLessThan() : o === 0 ? onEqual() : onGreaterThan();
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};
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};
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/**
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* @category pattern matching
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* @since 2.10.0
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*/
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export var match = matchW;
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// -------------------------------------------------------------------------------------
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// combinators
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// -------------------------------------------------------------------------------------
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/**
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* @since 2.10.0
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*/
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export var reverse = function (o) { return (o === -1 ? 1 : o === 1 ? -1 : 0); };
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// -------------------------------------------------------------------------------------
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// instances
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// -------------------------------------------------------------------------------------
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/**
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* @category instances
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* @since 2.10.0
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*/
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export var Eq = {
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equals: function (x, y) { return x === y; }
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};
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/**
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* @category instances
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* @since 2.10.0
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*/
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export var Semigroup = {
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concat: function (x, y) { return (x !== 0 ? x : y); }
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};
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/**
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* @category instances
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* @since 2.10.0
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*/
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export var Monoid = {
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concat: Semigroup.concat,
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empty: 0
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};
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// -------------------------------------------------------------------------------------
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// utils
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// -------------------------------------------------------------------------------------
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/**
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* @since 2.0.0
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*/
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export var sign = function (n) { return (n <= -1 ? -1 : n >= 1 ? 1 : 0); };
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// -------------------------------------------------------------------------------------
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// deprecated
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// -------------------------------------------------------------------------------------
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/**
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* Use [`reverse`](#reverse) instead.
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*
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* @category zone of death
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* @since 2.0.0
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* @deprecated
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*/
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export var invert = reverse;
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/**
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* Use [`Semigroup`](#semigroup) instead
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*
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* @category zone of death
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* @since 2.0.0
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* @deprecated
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*/
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export var semigroupOrdering = Semigroup;
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/**
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* Use [`Eq`](#eq) instead
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*
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* @category zone of death
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* @since 2.0.0
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* @deprecated
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*/
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export var eqOrdering = Eq;
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/**
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* Use [`Monoid`](#monoid) instead
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*
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* @category zone of death
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* @since 2.4.0
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* @deprecated
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*/
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export var monoidOrdering = Monoid;
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