patch.js
function fromJSON(object) {
        if (object instanceof ops.Op) return object; // If already patch, return it
        if (object === undefined) return ops.NOP;
        if (object.op) {
            if (object.op === ops.Rpl.name)
                return new ops.Rpl(object.data);
            if (object.op === ops.Ins.name)
                return new ops.Ins(object.data);
            else if (object.op === ops.NOP.name)
                return ops.NOP;
            else if (object.op === ops.DEL.name)
                return ops.DEL;
            else if (object.op === ops.Mrg.name) 
                return new ops.Mrg(utils.map(object.data, fromJSON));
            else if (object.op === ops.Map.name) 
                return new ops.Map(object.data.map(([key,op]) => [key, fromJSON(op)]));
            else if (object.op === ops.Arr.name) 
                return new ops.Arr(object.data.map(([key,op]) => [key, fromJSON(op)]));
            else throw new Error('unknown diff.op ' + object.op);
        } else {
            return new ops.Rpl(object);   
        }    
}
function fromJSON(object) {
        if (object instanceof ops.Op) return object; // If already patch, return it
        if (object === undefined) return ops.NOP;
        if (object.op) {
            if (object.op === ops.Rpl.name)
                return new ops.Rpl(object.data);
            if (object.op === ops.Ins.name)
                return new ops.Ins(object.data);
            else if (object.op === ops.NOP.name)
                return ops.NOP;
            else if (object.op === ops.DEL.name)
                return ops.DEL;
            else if (object.op === ops.Mrg.name) 
                return new ops.Mrg(utils.map(object.data, fromJSON));
            else if (object.op === ops.Map.name) 
                return new ops.Map(object.data.map(([key,op]) => [key, fromJSON(op)]));
            else if (object.op === ops.Arr.name) 
                return new ops.Arr(object.data.map(([key,op]) => [key, fromJSON(op)]));
            else throw new Error('unknown diff.op ' + object.op);
        } else {
            return new ops.Rpl(object);   
        }    
}
function fromJSON ( object ) { if ( object instanceof ops . Op ) return object ; // If already patch, return it if ( object === undefined ) return ops . NOP ; if ( object . op ) { if ( object . op === ops . Rpl . name ) return new ops . Rpl ( object . data ) ; if ( object . op === ops . Ins . name ) return new ops . Ins ( object . data ) ; else if ( object . op === ops . NOP . name ) return ops . NOP ; else if ( object . op === ops . DEL . name ) return ops . DEL ; else if ( object . op === ops . Mrg . name ) return new ops . Mrg ( utils . map ( object . data , fromJSON ) ) ; else if ( object . op === ops . Map . name ) return new ops . Map ( object . data . map ( ( [ key , op ] ) => [ key , fromJSON ( op ) ] ) ) ; else if ( object . op === ops . Arr . name ) return new ops . Arr ( object . data . map ( ( [ key , op ] ) => [ key , fromJSON ( op ) ] ) ) ; else throw new Error ( 'unknown diff.op ' + object . op ) ; } else { return new ops . Rpl ( object ) ; } }
Convert over-the-wire JSON format back into typed patch object
Convert over - the - wire JSON format back into typed patch object