was.js – Rev 14

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/*************************************************************************/
/*    Copyright (C) 2017 Wizardry and Steamworks - License: GNU GPLv3    */
/*************************************************************************/
/* fuss/lambda_calculus/functional_programming/aggregators @ grimore.org */
/*************************************************************************/
if (!Array.prototype.switch) {
    Array.prototype.switch = function(d, c) {
        if(c.length % 2 != 0)
            throw "Pairs of predicates expected for cases";
        
        this.forEach((s) => {
            var m = false;
            for(i = 0; i < c.length; i += 2) {
                if(!c[i](s))
                    continue;
                if(!c[i + 1](s))
                    continue;
                m = true;
            }
        
            if(!m)
                d(s)
        });
    };
}

/*************************************************************************/
/*    Copyright (C) 2017 Wizardry and Steamworks - License: GNU GPLv3    */
/*************************************************************************/
/* fuss/lambda_calculus/functional_programming/aggregators @ grimore.org */
/*************************************************************************/
$.extend({
    switch: function(q, d, c) {
        if(c.length % 2 != 0)
            throw "Pairs of predicates expected for cases";
        
        q.forEach((s) => {
            var m = false;
            for(i = 0; i < c.length; i += 2) {
                if(!c[i](s))
                    continue;
                if(!c[i + 1](s))
                    continue;
                m = true;
            }
        
            if(!m)
                d(s)
        });
    }
});