ewm/dist/behaviors/BComputedWatch/rfdc.js

小程序原生插件

function copyBuffer(cur) {
    if (cur instanceof Buffer) {
        return Buffer.from(cur);
    }
    return new cur.constructor(cur.buffer.slice(), cur.byteOffset, cur.length);
}
export function rfdc(opts) {
    opts = opts || {};
    if (opts.circles)
        return rfdcCircles(opts);
    return opts.proto ? cloneProto : clone;
    function cloneArray(a, fn) {
        var keys = Object.keys(a);
        var a2 = new Array(keys.length);
        for (var i = 0; i < keys.length; i++) {
            var k = keys[i];
            var cur = a[k];
            if (typeof cur !== 'object' || cur === null) {
                a2[k] = cur;
            }
            else if (cur instanceof Date) {
                a2[k] = new Date(cur);
            }
            else if (ArrayBuffer.isView(cur)) {
                a2[k] = copyBuffer(cur);
            }
            else {
                a2[k] = fn(cur);
            }
        }
        return a2;
    }
    function clone(o) {
        if (typeof o !== 'object' || o === null)
            return o;
        if (o instanceof Date)
            return new Date(o);
        if (Array.isArray(o))
            return cloneArray(o, clone);
        if (o instanceof Map)
            return new Map(cloneArray(Array.from(o), clone));
        if (o instanceof Set)
            return new Set(cloneArray(Array.from(o), clone));
        var o2 = {};
        for (var k in o) {
            if (Object.hasOwnProperty.call(o, k) === false)
                continue;
            var cur = o[k];
            if (typeof cur !== 'object' || cur === null) {
                o2[k] = cur;
            }
            else if (cur instanceof Date) {
                o2[k] = new Date(cur);
            }
            else if (cur instanceof Map) {
                o2[k] = new Map(cloneArray(Array.from(cur), clone));
            }
            else if (cur instanceof Set) {
                o2[k] = new Set(cloneArray(Array.from(cur), clone));
            }
            else if (ArrayBuffer.isView(cur)) {
                o2[k] = copyBuffer(cur);
            }
            else {
                o2[k] = clone(cur);
            }
        }
        return o2;
    }
    function cloneProto(o) {
        if (typeof o !== 'object' || o === null)
            return o;
        if (o instanceof Date)
            return new Date(o);
        if (Array.isArray(o))
            return cloneArray(o, cloneProto);
        if (o instanceof Map)
            return new Map(cloneArray(Array.from(o), cloneProto));
        if (o instanceof Set)
            return new Set(cloneArray(Array.from(o), cloneProto));
        var o2 = {};
        for (var k in o) {
            var cur = o[k];
            if (typeof cur !== 'object' || cur === null) {
                o2[k] = cur;
            }
            else if (cur instanceof Date) {
                o2[k] = new Date(cur);
            }
            else if (cur instanceof Map) {
                o2[k] = new Map(cloneArray(Array.from(cur), cloneProto));
            }
            else if (cur instanceof Set) {
                o2[k] = new Set(cloneArray(Array.from(cur), cloneProto));
            }
            else if (ArrayBuffer.isView(cur)) {
                o2[k] = copyBuffer(cur);
            }
            else {
                o2[k] = cloneProto(cur);
            }
        }
        return o2;
    }
}
function rfdcCircles(opts) {
    var refs = [];
    var refsNew = [];
    return opts.proto ? cloneProto : clone;
    function cloneArray(a, fn) {
        var keys = Object.keys(a);
        var a2 = new Array(keys.length);
        for (var i = 0; i < keys.length; i++) {
            var k = keys[i];
            var cur = a[k];
            if (typeof cur !== 'object' || cur === null) {
                a2[k] = cur;
            }
            else if (cur instanceof Date) {
                a2[k] = new Date(cur);
            }
            else if (ArrayBuffer.isView(cur)) {
                a2[k] = copyBuffer(cur);
            }
            else {
                var index = refs.indexOf(cur);
                if (index !== -1) {
                    a2[k] = refsNew[index];
                }
                else {
                    a2[k] = fn(cur);
                }
            }
        }
        return a2;
    }
    function clone(o) {
        if (typeof o !== 'object' || o === null)
            return o;
        if (o instanceof Date)
            return new Date(o);
        if (Array.isArray(o))
            return cloneArray(o, clone);
        if (o instanceof Map)
            return new Map(cloneArray(Array.from(o), clone));
        if (o instanceof Set)
            return new Set(cloneArray(Array.from(o), clone));
        var o2 = {};
        refs.push(o);
        refsNew.push(o2);
        for (var k in o) {
            if (Object.hasOwnProperty.call(o, k) === false)
                continue;
            var cur = o[k];
            if (typeof cur !== 'object' || cur === null) {
                o2[k] = cur;
            }
            else if (cur instanceof Date) {
                o2[k] = new Date(cur);
            }
            else if (cur instanceof Map) {
                o2[k] = new Map(cloneArray(Array.from(cur), clone));
            }
            else if (cur instanceof Set) {
                o2[k] = new Set(cloneArray(Array.from(cur), clone));
            }
            else if (ArrayBuffer.isView(cur)) {
                o2[k] = copyBuffer(cur);
            }
            else {
                var i = refs.indexOf(cur);
                if (i !== -1) {
                    o2[k] = refsNew[i];
                }
                else {
                    o2[k] = clone(cur);
                }
            }
        }
        refs.pop();
        refsNew.pop();
        return o2;
    }
    function cloneProto(o) {
        if (typeof o !== 'object' || o === null)
            return o;
        if (o instanceof Date)
            return new Date(o);
        if (Array.isArray(o))
            return cloneArray(o, cloneProto);
        if (o instanceof Map)
            return new Map(cloneArray(Array.from(o), cloneProto));
        if (o instanceof Set)
            return new Set(cloneArray(Array.from(o), cloneProto));
        var o2 = {};
        refs.push(o);
        refsNew.push(o2);
        for (var k in o) {
            var cur = o[k];
            if (typeof cur !== 'object' || cur === null) {
                o2[k] = cur;
            }
            else if (cur instanceof Date) {
                o2[k] = new Date(cur);
            }
            else if (cur instanceof Map) {
                o2[k] = new Map(cloneArray(Array.from(cur), cloneProto));
            }
            else if (cur instanceof Set) {
                o2[k] = new Set(cloneArray(Array.from(cur), cloneProto));
            }
            else if (ArrayBuffer.isView(cur)) {
                o2[k] = copyBuffer(cur);
            }
            else {
                var i = refs.indexOf(cur);
                if (i !== -1) {
                    o2[k] = refsNew[i];
                }
                else {
                    o2[k] = cloneProto(cur);
                }
            }
        }
        refs.pop();
        refsNew.pop();
        return o2;
    }
}
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