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VO.js
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/*
VO.js - "crlf/VO" JSON Value Objects
The MIT License (MIT)
Copyright (c) 2017-2018 Dale Schumacher
Permission is hereby granted, free of charge, to any person
obtaining a copy of this software and associated documentation
files (the "Software"), to deal in the Software without
restriction, including without limitation the rights to use,
copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following
conditions:
The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
OTHER DEALINGS IN THE SOFTWARE.
*/
"use strict";
var VO = module.exports;
VO.version = "0.0.1";
//VO.log = console.log;
VO.log = function () {};
var deepFreeze = (typeof Object.freeze !== "function")
? function deepFreeze(obj) { return obj; } // freeze not supported
: function deepFreeze(obj) {
Object.getOwnPropertyNames(obj).forEach(function(name) {
var value = obj[name];
if ((value !== null)
&& (typeof value === 'object')
&& (!Object.isFrozen(value))) {
deepFreeze(value);
}
});
return Object.freeze(obj);
};
var isNativeArray = Array.isArray || function isArray(object) {
return (Object.prototype.toString.call(object) === '[object Array]');
};
var isNativeObject = function isObject(object) {
return (Object.prototype.toString.call(object) === '[object Object]');
};
VO.throw = function error(value) { // signal an error
throw new Error(value);
};
VO.ensure = function ensure(predicate) { // express an invariant condition
if (predicate !== VO.true) {
VO.throw(predicate);
}
};
VO.fromNative = function fromNative(native) { // convert native JS value to VO equivalent
if (native === null) {
return VO.null;
} else if (native === true) {
return VO.true;
} else if (native === false) {
return VO.false;
} else if (typeof native === "number") {
return new VO.Number(native);
} else if (typeof native === "string") {
return new VO.String(native);
} else if (isNativeArray(native)) {
var a = [];
native.forEach(function (v, i) {
a[i] = VO.fromNative(v);
});
return new VO.Array(a);
} else if (isNativeObject(native)) {
var o = {};
Object.keys(native).forEach(function (k) {
o[k] = VO.fromNative(native[k]);
});
return new VO.Object(o);
}
VO.throw(native); // no VO equivalent
};
VO.Value = (function (proto) {
proto = proto || {};
proto.equals = function equals(that) {
if (this === that) {
return VO.true;
}
return VO.false;
};
proto.hasType = function hasType(type) {
return VO.Boolean(this instanceof type);
};
proto.combine = function combine(name) { // data-value combiner is abstract field accessor
VO.ensure(this.hasType(VO.Value));
VO.ensure(name.hasType(VO.String));
var member = this[name._value];
VO.ensure(VO.Boolean(member !== undefined));
if (typeof member === 'function') {
member = VO.Combiner(member.bind(this)); // wrap native function
}
VO.ensure(member.hasType(VO.Value));
return member;
};
proto.method = function method(name) { // create adapter for native method
VO.ensure(this.hasType(VO.Value));
var target = this; // this is the target object
VO.ensure(name.hasType(VO.String));
var method = target[name._value]; // extract native method from target
VO.ensure(VO.Boolean(typeof method === "function"));
var operation = VO.Operation(function methodCall(args/*, context*/) {
VO.ensure(args.hasType(VO.Array));
// VO.ensure(context.hasType(VO.Object));
return method.apply(target, args._value); // call native method on target object
});
return operation; // return operation bound to target object method
};
var constructor = function Value() {
if (!(this instanceof Value)) { return new Value(); } // if called without "new" keyword...
// deepFreeze(this); // can't freeze Values because we need mutable prototypes
};
proto.constructor = constructor;
constructor.prototype = proto;
return constructor;
})();
VO.Combiner = (function (proto) {
proto = proto || VO.Value();
proto.combine = function combine(value) { // delegate to native operative function
VO.ensure(this.hasType(VO.Combiner));
VO.ensure(value.hasType(VO.Value));
return this._oper(value);
};
proto.concatenate = function concatenate(that) {
VO.ensure(this.hasType(VO.Combiner));
var first = this._oper;
VO.ensure(this.hasType(VO.Combiner));
var second = that._oper;
var composition = function composition(value) {
value = first(value); // apply this operative first
value = second(value); // apply that operative second
return value; // return final value
}
return VO.Combiner(composition);
};
var constructor = function Combiner(operative) {
if (!(this instanceof Combiner)) { return new Combiner(operative); } // if called without "new" keyword...
VO.ensure(VO.Boolean(typeof operative === "function"));
this._oper = operative;
deepFreeze(this);
};
proto.constructor = constructor;
constructor.prototype = proto;
return constructor;
})();
VO.Data = (function (proto) {
proto = proto || VO.Value();
Object.defineProperty(proto, 'asJSON', {
enumerable: true,
get: function () {
VO.ensure(this.hasType(VO.Data));
return VO.String(JSON.stringify(this._value));
}
});
var constructor = function Data() {
if (!(this instanceof Data)) { return new Data(); } // if called without "new" keyword...
// deepFreeze(this); // can't freeze because we need mutable prototypes
};
proto.constructor = constructor;
constructor.prototype = proto;
return constructor;
})();
VO.Null = (function (proto) {
proto = proto || VO.Data();
var constructor = function Null() {
if (VO.null === undefined) {
this._value = null;
VO.null = deepFreeze(this);
}
return VO.null;
};
proto.constructor = constructor;
constructor.prototype = proto;
VO.null = new constructor();
return constructor;
})();
VO.Boolean = (function (proto) {
proto = proto || VO.Data();
var constructor = function Boolean(value) {
if (value) {
if (VO.true === undefined) {
this._value = true;
VO.true = this;
}
return VO.true;
} else {
if (VO.false === undefined) {
this._value = false;
VO.false = this;
}
return VO.false;
}
};
proto.constructor = constructor;
constructor.prototype = proto;
deepFreeze(constructor);
let T = new constructor(true); // assigns VO.true
let F = new constructor(false); // assigns VO.false
T.not = F;
F.not = T;
T.or = (that => T);
F.or = (that => that);
T.and = (that => that);
F.and = (that => F);
Object.freeze(VO.true);
Object.freeze(VO.false);
return constructor;
})();
VO.Number = (function (proto) {
proto = proto || VO.Data();
proto.equals = function equals(that) {
if (this === that) {
return VO.true;
}
if ((this.hasType(VO.Number) === VO.true)
&& (that.hasType(VO.Number) === VO.true)) {
if (this._value === that._value) {
return VO.true;
}
}
return VO.false;
};
proto.lessThan = function lessThan(that) {
VO.ensure(this.hasType(VO.Number));
VO.ensure(that.hasType(VO.Number));
return VO.Boolean(this._value < that._value);
};
proto.lessEqual = function lessEqual(that) {
VO.ensure(this.hasType(VO.Number));
VO.ensure(that.hasType(VO.Number));
return VO.Boolean(this._value <= that._value);
};
proto.greaterEqual = function greaterEqual(that) {
VO.ensure(this.hasType(VO.Number));
VO.ensure(that.hasType(VO.Number));
return VO.Boolean(this._value >= that._value);
};
proto.greaterThan = function greaterThan(that) {
VO.ensure(this.hasType(VO.Number));
VO.ensure(that.hasType(VO.Number));
return VO.Boolean(this._value > that._value);
};
proto.plus = function plus(that) {
VO.ensure(this.hasType(VO.Number));
VO.ensure(that.hasType(VO.Number));
return VO.Number(this._value + that._value);
};
proto.times = function times(that) {
VO.ensure(this.hasType(VO.Number));
VO.ensure(that.hasType(VO.Number));
return VO.Number(this._value * that._value);
};
var constructor = function Number(value) {
if (!(this instanceof Number)) { return new Number(value); } // if called without "new" keyword...
VO.ensure(VO.Boolean(typeof value === "number"));
this._value = value;
deepFreeze(this);
};
proto.constructor = constructor;
constructor.prototype = proto;
VO.minusOne = new constructor(-1);
VO.zero = new constructor(0);
VO.one = new constructor(1);
VO.two = new constructor(2);
return constructor;
})();
VO.Composite = (function (proto) {
proto = proto || VO.Data();
proto.value = function value(selector) { // extract a component of the composite
VO.throw("Not Implemented"); // FIXME!
};
var constructor = function Composite() {
if (!(this instanceof Composite)) { return new Composite(); } // if called without "new" keyword...
// deepFreeze(this); // can't freeze because we need mutable prototypes
};
proto.constructor = constructor;
constructor.prototype = proto;
return constructor;
})();
VO.String = (function (proto) {
proto = proto || VO.Composite();
proto.equals = function equals(that) {
if (this === that) {
return VO.true;
}
if ((this.hasType(VO.String) === VO.true)
&& (that.hasType(VO.String) === VO.true)) {
if (this._value === that._value) {
return VO.true;
}
}
return VO.false;
};
Object.defineProperty(proto, 'length', {
enumerable: true,
get: function () {
VO.ensure(this.hasType(VO.String));
return VO.Number(this._value.length);
}
});
proto.value = function value(offset) {
VO.ensure(this.hasType(VO.String));
VO.ensure(offset.hasType(VO.Number));
VO.ensure(VO.zero.lessEqual(offset)); // 0 <= offset
VO.ensure(offset.lessThan(this.length)); // offset < length
return VO.Number(this._value.codePointAt(offset._value));
};
proto.concatenate = function concatenate(that) {
VO.ensure(this.hasType(VO.String));
VO.ensure(that.hasType(VO.String));
return VO.String(this._value + that._value);
};
proto.skip = function skip(count) {
VO.ensure(this.hasType(VO.String));
VO.ensure(count.hasType(VO.Number));
VO.ensure(count.greaterEqual(VO.zero)); // count >= 0
if (count._value >= this._value.length) { // count >= length
return VO.emptyString;
}
return VO.String(this._value.slice(count._value, this._value.length));
};
proto.take = function take(count) {
VO.ensure(this.hasType(VO.String));
VO.ensure(count.hasType(VO.Number));
VO.ensure(count.greaterEqual(VO.zero)); // count >= 0
VO.ensure(count.lessEqual(this.length)); // count <= length
return VO.String(this._value.slice(0, count._value));
};
proto.extract = function extract(interval) {
VO.ensure(this.hasType(VO.String));
VO.ensure(interval.hasType(VO.Object));
VO.ensure(interval.hasProperty(VO.String("from")));
VO.ensure(interval.hasProperty(VO.String("upto")));
let from = interval.value(VO.String("from"));
let upto = interval.value(VO.String("upto"));
VO.ensure(from.hasType(VO.Number));
VO.ensure(upto.hasType(VO.Number));
VO.ensure(VO.zero.lessEqual(from)); // 0 <= from
VO.ensure(from.lessEqual(upto)); // from <= upto
VO.ensure(upto.lessEqual(this.length)); // upto <= length
return VO.String(this._value.slice(from._value, upto._value));
};
proto.append = function append(value) {
VO.ensure(this.hasType(VO.String));
VO.ensure(value.hasType(VO.Number));
return VO.String(this._value + String.fromCodePoint(value._value));
};
proto.bind = function bind(value) {
VO.ensure(this.hasType(VO.String));
VO.ensure(value.hasType(VO.Value));
var obj = {};
obj[this._value] = value;
return VO.Object(obj);
};
proto.reduce = function reduce(func, value) {
VO.ensure(this.hasType(VO.String));
if (typeof func === "function") {
for (var i = 0; i < this._value.length; ++i) {
var c = VO.Number(this._value.codePointAt(i));
value = func(c, value);
}
return value;
}
VO.throw("Not Implemented"); // FIXME!
};
Object.defineProperty(proto, 'asArray', {
enumerable: true,
get: function () {
VO.ensure(this.hasType(VO.String));
return this.reduce(function (c, x) {
return x.append(c);
}, VO.emptyArray);
}
});
var constructor = function String(value) {
if (!(this instanceof String)) { return new String(value); } // if called without "new" keyword...
if (value === undefined) {
return VO.emptyString;
}
VO.ensure(VO.Boolean(typeof value === "string"));
this._value = value;
deepFreeze(this);
};
proto.constructor = constructor;
constructor.prototype = proto;
VO.emptyString = new constructor("");
return constructor;
})();
VO.Array = (function (proto) {
proto = proto || VO.Composite();
proto.equals = function equals(that) {
if (this === that) {
return VO.true;
}
if ((this.hasType(VO.Array) === VO.true)
&& (that.hasType(VO.Array) === VO.true)) {
var a = this._value;
var b = that._value;
if (a.length === b.length) {
for (var i = 0; i < a.length; ++i) {
if (a[i].equals(b[i]) === VO.false) {
return VO.false;
}
}
return VO.true;
}
}
return VO.false;
};
Object.defineProperty(proto, 'length', {
enumerable: true,
get: function () {
VO.ensure(this.hasType(VO.Array));
return VO.Number(this._value.length);
}
});
proto.value = function value(offset) {
VO.ensure(this.hasType(VO.Array));
VO.ensure(offset.hasType(VO.Number));
VO.ensure(VO.zero.lessEqual(offset)); // 0 <= offset
VO.ensure(offset.lessThan(this.length)); // offset < length
return this._value[offset._value];
};
proto.concatenate = function concatenate(that) {
VO.ensure(this.hasType(VO.Array));
VO.ensure(that.hasType(VO.Array));
return VO.Array(this._value.concat(that._value));
};
proto.skip = function skip(count) {
VO.ensure(this.hasType(VO.Array));
VO.ensure(count.hasType(VO.Number));
VO.ensure(count.greaterEqual(VO.zero)); // count >= 0
if (count._value >= this._value.length) { // count >= length
return VO.emptyArray;
}
return VO.Array(this._value.slice(count._value, this._value.length));
};
proto.take = function take(count) {
VO.ensure(this.hasType(VO.Array));
VO.ensure(count.hasType(VO.Number));
VO.ensure(count.greaterEqual(VO.zero)); // count >= 0
VO.ensure(count.lessEqual(this.length)); // count <= length
return VO.Array(this._value.slice(0, count._value));
};
proto.extract = function extract(interval) {
VO.ensure(this.hasType(VO.Array));
VO.ensure(interval.hasType(VO.Object));
VO.ensure(interval.hasProperty(VO.String("from")));
VO.ensure(interval.hasProperty(VO.String("upto")));
let from = interval.value(VO.String("from"));
let upto = interval.value(VO.String("upto"));
VO.ensure(from.hasType(VO.Number));
VO.ensure(upto.hasType(VO.Number));
VO.ensure(VO.zero.lessEqual(from)); // 0 <= from
VO.ensure(from.lessEqual(upto)); // from <= upto
VO.ensure(upto.lessEqual(this.length)); // upto <= length
return VO.Array(this._value.slice(from._value, upto._value));
};
proto.append = function append(value) {
VO.ensure(this.hasType(VO.Array));
VO.ensure(value.hasType(VO.Value));
return VO.Array(this._value.concat(value));
};
proto.reduce = function reduce(func, value) {
VO.ensure(this.hasType(VO.Array));
if (typeof func === "function") {
for (var i = 0; i < this._value.length; ++i) {
value = func(this._value[i], value);
}
return value;
}
VO.throw("Not Implemented"); // FIXME!
};
Object.defineProperty(proto, 'asString', {
enumerable: true,
get: function () {
VO.ensure(this.hasType(VO.Array));
return this.reduce(function (v, x) {
VO.ensure(v.hasType(VO.Number));
return x.append(v);
}, VO.emptyString);
}
});
var constructor = function Array(value) {
if (!(this instanceof Array)) { return new Array(value); } // if called without "new" keyword...
if (value === undefined) {
return VO.emptyArray;
}
VO.ensure(VO.Boolean(isNativeArray(value)));
this._value = value;
deepFreeze(this);
};
proto.constructor = constructor;
constructor.prototype = proto;
VO.emptyArray = new constructor([]);
return constructor;
})();
VO.Object = (function (proto) {
proto = proto || VO.Composite();
proto.equals = function equals(that) {
if (this === that) {
return VO.true;
}
if ((this.hasType(VO.Object) === VO.true)
&& (that.hasType(VO.Object) === VO.true)) {
var a = this._value;
var b = that._value;
var keys = Object.keys(a);
if (keys.length === Object.keys(b).length) {
for (var i = 0; i < keys.length; ++i) {
var key = keys[i];
if (a[key].equals(b[key]) === VO.false) {
return VO.false;
}
}
return VO.true;
}
}
return VO.false;
};
proto.hasProperty = function hasProperty(name) {
VO.ensure(this.hasType(VO.Object));
VO.ensure(name.hasType(VO.String));
return VO.Boolean(this._value.hasOwnProperty(name._value));
};
proto.value = function value(name) {
VO.ensure(this.hasType(VO.Object));
VO.ensure(name.hasType(VO.String));
VO.ensure(this.hasProperty(name));
return this._value[name._value];
};
proto.concatenate = function concatenate(that) {
VO.ensure(this.hasType(VO.Object));
VO.ensure(that.hasType(VO.Object));
var result = {};
Object.keys(this._value).forEach(function (key) {
result[key] = this._value[key]; // copy properties from this
}, this);
Object.keys(that._value).forEach(function (key) {
result[key] = that._value[key]; // argument/replace with properties from that
});
return VO.Object(result);
};
proto.extract = function extract(names) {
VO.ensure(this.hasType(VO.Object));
VO.ensure(names.hasType(VO.Array));
var from = this; // capture this use in reduce
return names.reduce(function (n, v) {
VO.ensure(n.hasType(VO.String));
return v.concatenate(n.bind(from.value(n)));
}, VO.emptyObject);
};
Object.defineProperty(proto, 'names', {
enumerable: true,
get: function () {
/*
VO.ensure(this.hasType(VO.Object));
return this.reduce(function (n, v, x) {
return x.append(n);
}, VO.emptyArray);
*/
VO.ensure(this.hasType(VO.Object));
var keys = Object.keys(this._value);
for (var i = 0; i < keys.length; ++i) {
keys[i] = VO.String(keys[i]); // convert to VO.String
}
return VO.Array(keys);
}
});
proto.reduce = function reduce(func, value) {
VO.ensure(this.hasType(VO.Object));
if (typeof func === "function") {
var keys = Object.keys(this._value);
for (var i = 0; i < keys.length; ++i) {
var key = keys[i];
value = func(VO.String(key), this._value[key], value);
}
return value;
}
VO.throw("Not Implemented"); // FIXME!
};
var constructor = function Object(value) {
if (!(this instanceof Object)) { return new Object(value); } // if called without "new" keyword...
if (value === undefined) {
return VO.emptyObject;
}
VO.ensure(VO.Boolean(isNativeObject(value)));
this._value = value;
deepFreeze(this);
};
proto.constructor = constructor;
constructor.prototype = proto;
VO.emptyObject = new constructor({});
return constructor;
})();
VO.Expression = (function (proto) {
proto = proto || VO.Value();
proto.evaluate = function evaluate(/* context */) {
VO.throw("Not Implemented");
};
var constructor = function Expression() {
if (!(this instanceof Expression)) { return new Expression(); } // if called without "new" keyword...
// deepFreeze(this); // can't freeze Expressions because we need mutable prototypes
};
proto.constructor = constructor;
constructor.prototype = proto;
return constructor;
})();
VO.ValueExpr = (function (proto) {
proto = proto || VO.Expression();
proto.evaluate = function evaluate(/* context */) {
return this._value;
};
var constructor = function ValueExpr(value) {
if (!(this instanceof ValueExpr)) { return new ValueExpr(value); } // if called without "new" keyword...
VO.ensure(value.hasType(VO.Value));
this._value = value;
};
proto.constructor = constructor;
constructor.prototype = proto;
return constructor;
})();
VO.VariableExpr = (function (proto) {
proto = proto || VO.Expression();
proto.evaluate = function evaluate(context) {
// VO.ensure(context.hasType(VO.Object));
return context.value(this._name);
};
var constructor = function VariableExpr(name) {
if (!(this instanceof VariableExpr)) { return new VariableExpr(name); } // if called without "new" keyword...
VO.ensure(name.hasType(VO.String));
this._name = name;
};
proto.constructor = constructor;
constructor.prototype = proto;
return constructor;
})();
VO.CombineExpr = (function (proto) {
proto = proto || VO.Expression();
proto.evaluate = function evaluate(context) {
// VO.ensure(context.hasType(VO.Object));
var operation = this._expr.evaluate(context);
// VO.ensure(VO.Boolean(typeof operation.operate === "function"));
VO.ensure(operation.hasType(VO.Operation));
return operation.operate(this._data, context);
};
var constructor = function CombineExpr(expr, data) {
if (!(this instanceof CombineExpr)) { return new CombineExpr(expr, data); } // if called without "new" keyword...
VO.ensure(expr.hasType(VO.Expression));
VO.ensure(data.hasType(VO.Value));
this._expr = expr;
this._data = data;
};
proto.constructor = constructor;
constructor.prototype = proto;
return constructor;
})();
VO.Operation = (function (proto) {
proto = proto || VO.Expression();
proto.evaluate = function evaluate(context) {
// VO.ensure(context.hasType(VO.Object));
return this; // operations evaluate to themselves
};
proto.operate = function operate(value, context) {
VO.ensure(value.hasType(VO.Value));
// VO.ensure(context.hasType(VO.Object));
var operative = this._oper;
return operative(value, context);
};
proto.concatenate = function concatenate(that) {
VO.ensure(this.hasType(VO.Operation));
var first = this._oper;
VO.ensure(that.hasType(VO.Operation));
var second = that._oper;
var composition = function composition(value, context) {
value = first(value, context); // apply this operative first
value = second(value, context); // apply that operative second
return value; // return final value
}
return VO.Operation(composition);
};
var constructor = function Operation(operative) {
if (!(this instanceof Operation)) { return new Operation(operative); } // if called without "new" keyword...
VO.ensure(VO.Boolean(typeof operative === "function"));
this._oper = operative;
deepFreeze(this);
};
proto.constructor = constructor;
constructor.prototype = proto;
/* return unevaluated argument */
VO.quoteOper = new constructor(function quoteOper(value/*, context*/) {
VO.ensure(value.hasType(VO.Value));
// VO.ensure(context.hasType(VO.Object));
return value;
});
/* return array of evaluated arguments */
VO.arrayOper = new constructor(function arrayOper(array, context) {
VO.ensure(array.hasType(VO.Array));
// VO.ensure(context.hasType(VO.Object));
return array.reduce(function (v, x) {
VO.ensure(v.hasType(VO.Expression));
return x.append(v.evaluate(context));
}, VO.emptyArray);
});
/* evaluate expressions sequentially, returning the last value */
VO.sequentialOper = new constructor(function sequentialOper(array, context) {
VO.ensure(array.hasType(VO.Array));
// VO.ensure(context.hasType(VO.Object));
return array.reduce(function (v, x) {
VO.ensure(v.hasType(VO.Expression));
return v.evaluate(context);
}, VO.null);
});
return constructor;
})();
VO.MethodExpr = (function (proto) {
proto = proto || VO.Expression();
proto.evaluate = function evaluate(context) {
VO.ensure(context.hasType(VO.Object));
var selector = this._name.evaluate(context); // evaluate name expression to get selector
VO.ensure(selector.hasType(VO.String));
var target = this._this.evaluate(context); // evaluate this expression to get target
VO.ensure(target.hasType(VO.Value));
var operation = target.method(selector); // adapter for native method
operation = VO.arrayOper.concatenate(operation); // evaluate arguments before calling method
return operation; // return applicative bound to target object
};
var constructor = function MethodExpr(target, selector) {
if (!(this instanceof MethodExpr)) { return new MethodExpr(target, selector); } // if called without "new" keyword...
VO.ensure(target.hasType(VO.Expression));
VO.ensure(selector.hasType(VO.Expression));
this._this = target;
this._name = selector;
};
proto.constructor = constructor;
constructor.prototype = proto;
return constructor;
})();
VO.selfTest = (function () {
var sampleString = VO.String("Hello, World!");
var sampleArray = VO.Array([
VO.null,
VO.true,
VO.false,
VO.zero,
VO.one,
VO.emptyString,
VO.emptyArray,
VO.emptyObject
]);
var sampleObject = VO.Object({
"null": VO.null,
"true": VO.true,
"false": VO.false,
"zero": VO.zero,
"one": VO.one,
"emptyString": VO.emptyString,
"emptyArray": VO.emptyArray,
"emptyObject": VO.emptyObject
});
var sampleContext = sampleObject.concatenate(VO.Object({
"quote": VO.quoteOper,
"arrayOf": VO.arrayOper
}));
var tmp;
return function selfTest() {
// Null
VO.ensure(VO.null.equals(VO.null));
VO.ensure(VO.null.equals(VO.true).not);
VO.ensure(VO.null.equals(VO.false).not);
VO.ensure(VO.null.equals(VO.zero).not);
VO.ensure(VO.null.hasType(VO.Value));
VO.ensure(VO.null.hasType(VO.Data));
VO.ensure(VO.null.hasType(VO.Null));
VO.ensure(VO.null.hasType(VO.Boolean).not);
VO.ensure(VO.null.hasType(VO.Number).not);
VO.ensure(VO.null.hasType(VO.String).not);
VO.ensure(VO.null.hasType(VO.Array).not);
VO.ensure(VO.null.hasType(VO.Object).not);
VO.ensure(VO.null.equals(VO.Null()));
VO.ensure(VO.null.equals(new VO.Null()));
VO.ensure(VO.Boolean(VO.null === VO.Null()));
VO.ensure(VO.Boolean(VO.Null() === VO.Null()));
VO.ensure(VO.Boolean(VO.Null() === new VO.Null()));
VO.ensure(VO.null.asJSON.equals(VO.String("null")));
// Boolean
VO.ensure(VO.true.equals(VO.null).not);
VO.ensure(VO.true.equals(VO.true));
VO.ensure(VO.true.equals(VO.false).not);
VO.ensure(VO.true.equals(VO.zero).not);
VO.ensure(VO.true.hasType(VO.Value));
VO.ensure(VO.true.hasType(VO.Data));
VO.ensure(VO.true.hasType(VO.Null).not);
VO.ensure(VO.true.hasType(VO.Boolean));
VO.ensure(VO.true.hasType(VO.Number).not);
VO.ensure(VO.true.hasType(VO.String).not);
VO.ensure(VO.true.hasType(VO.Array).not);
VO.ensure(VO.true.hasType(VO.Object).not);
VO.ensure(VO.false.equals(VO.null).not);
VO.ensure(VO.false.equals(VO.true).not);
VO.ensure(VO.false.equals(VO.false));
VO.ensure(VO.false.equals(VO.zero).not);
VO.ensure(VO.false.hasType(VO.Value));
VO.ensure(VO.false.hasType(VO.Data));
VO.ensure(VO.false.hasType(VO.Null).not);
VO.ensure(VO.false.hasType(VO.Boolean));
VO.ensure(VO.false.hasType(VO.Number).not);
VO.ensure(VO.false.hasType(VO.String).not);
VO.ensure(VO.false.hasType(VO.Array).not);
VO.ensure(VO.false.hasType(VO.Object).not);
VO.ensure(VO.false.and(VO.false).not);
VO.ensure(VO.false.and(VO.true).not);
VO.ensure(VO.true.and(VO.false).not);
VO.ensure(VO.true.and(VO.true));
VO.ensure(VO.false.or(VO.false).not);
VO.ensure(VO.false.or(VO.true));
VO.ensure(VO.true.or(VO.false));
VO.ensure(VO.true.or(VO.true));
VO.ensure(VO.true.equals(VO.Boolean(true)));
VO.ensure(VO.true.equals(new VO.Boolean(true)));
VO.ensure(VO.Boolean(VO.true === VO.Boolean(true)));
VO.ensure(VO.Boolean(VO.Boolean(true) === VO.Boolean(true)));
VO.ensure(VO.Boolean(VO.Boolean(true) === new VO.Boolean(true)));
VO.ensure(VO.false.equals(VO.Boolean(false)));
VO.ensure(VO.false.equals(new VO.Boolean(false)));
VO.ensure(VO.Boolean(VO.false === VO.Boolean(false)));
VO.ensure(VO.Boolean(VO.Boolean(false) === VO.Boolean(false)));
VO.ensure(VO.Boolean(VO.Boolean(false) === new VO.Boolean(false)));
VO.ensure(VO.true.asJSON.equals(VO.String("true")));
VO.ensure(VO.false.asJSON.equals(VO.String("false")));
// Number
VO.ensure(VO.zero.equals(VO.zero));
VO.ensure(VO.zero.equals(VO.emptyString).not);
VO.ensure(VO.zero.equals(VO.emptyArray).not);
VO.ensure(VO.zero.equals(VO.emptyObject).not);
VO.ensure(VO.zero.hasType(VO.Value));
VO.ensure(VO.zero.hasType(VO.Data));
VO.ensure(VO.zero.hasType(VO.Null).not);
VO.ensure(VO.zero.hasType(VO.Boolean).not);
VO.ensure(VO.zero.hasType(VO.Number));
VO.ensure(VO.zero.hasType(VO.String).not);
VO.ensure(VO.zero.hasType(VO.Array).not);
VO.ensure(VO.zero.hasType(VO.Object).not);
VO.ensure(VO.zero.lessThan(VO.minusOne).not);
VO.ensure(VO.zero.lessThan(VO.zero).not);
VO.ensure(VO.zero.lessThan(VO.one));
VO.ensure(VO.zero.lessEqual(VO.minusOne).not);
VO.ensure(VO.zero.lessEqual(VO.zero));
VO.ensure(VO.zero.lessEqual(VO.one));
VO.ensure(VO.zero.greaterEqual(VO.minusOne));
VO.ensure(VO.zero.greaterEqual(VO.zero));
VO.ensure(VO.zero.greaterEqual(VO.one).not);
VO.ensure(VO.zero.greaterThan(VO.minusOne));
VO.ensure(VO.zero.greaterThan(VO.zero).not);
VO.ensure(VO.zero.greaterThan(VO.one).not);
VO.ensure(VO.one.lessThan(VO.zero).not);
VO.ensure(VO.one.lessThan(VO.two));
VO.ensure(VO.zero.lessThan(VO.two));
VO.ensure(VO.zero.plus(VO.zero).equals(VO.zero));
VO.ensure(VO.zero.plus(VO.one).equals(VO.one));
VO.ensure(VO.one.plus(VO.zero).equals(VO.one));
VO.ensure(VO.one.plus(VO.one).equals(VO.two));
VO.ensure(VO.one.plus(VO.minusOne).equals(VO.zero));
VO.ensure(VO.zero.times(VO.zero).equals(VO.zero));
VO.ensure(VO.zero.times(VO.one).equals(VO.zero));
VO.ensure(VO.one.times(VO.zero).equals(VO.zero));
VO.ensure(VO.one.times(VO.one).equals(VO.one));
VO.ensure(VO.one.times(VO.minusOne).equals(VO.minusOne));
VO.ensure(VO.two.times(VO.minusOne).equals(new VO.Number(-2)));
VO.ensure(VO.zero.equals(VO.Number(0)));
VO.ensure(VO.zero.equals(new VO.Number(0)));
VO.ensure(VO.Boolean(VO.Number(0) !== VO.Number(0)));
VO.ensure(VO.Boolean(VO.zero !== VO.Number(0)));
VO.ensure(VO.one.equals(VO.Number(1)));
VO.ensure(VO.Boolean(VO.one !== VO.Number(1)));
VO.ensure(VO.zero.asJSON.equals(VO.String("0")));
VO.ensure(VO.one.asJSON.equals(VO.String("1")));
VO.ensure(VO.two.asJSON.equals(VO.String("2")));
VO.ensure(VO.minusOne.asJSON.equals(VO.String("-1")));
VO.ensure((VO.Number(42)).asJSON.equals(VO.String("42")));
// String
VO.ensure(VO.emptyString.equals(VO.zero).not);
VO.ensure(VO.emptyString.equals(VO.emptyString));
VO.ensure(VO.emptyString.equals(VO.emptyArray).not);
VO.ensure(VO.emptyString.equals(VO.emptyObject).not);
VO.ensure(VO.emptyString.hasType(VO.Value));
VO.ensure(VO.emptyString.hasType(VO.Data));
VO.ensure(VO.emptyString.hasType(VO.Null).not);
VO.ensure(VO.emptyString.hasType(VO.Boolean).not);
VO.ensure(VO.emptyString.hasType(VO.Number).not);
VO.ensure(VO.emptyString.hasType(VO.Composite));
VO.ensure(VO.emptyString.hasType(VO.String));
VO.ensure(VO.emptyString.hasType(VO.Array).not);
VO.ensure(VO.emptyString.hasType(VO.Object).not);
VO.ensure(VO.emptyString.length.equals(VO.zero));
VO.ensure(sampleString.length.equals(VO.Number(13)));
VO.ensure(sampleString.value(VO.zero).equals(VO.Number(72))); // "H"
VO.ensure(sampleString.value(VO.Number(6)).equals(VO.Number(32))); // " "
VO.ensure(sampleString.value(sampleString.length.plus(VO.minusOne)).equals(VO.Number(33))); // "!"
VO.ensure(sampleString.extract(VO.fromNative({from:0, upto:0})).equals(VO.emptyString));
VO.ensure(sampleString.extract(VO.fromNative({from:0, upto:1})).length.equals(VO.one));
VO.ensure(sampleString.extract(VO.fromNative({from:1, upto:1})).length.equals(VO.zero));
VO.ensure(sampleString
.extract(VO.fromNative({from:0}).concatenate((VO.String("upto")).bind(sampleString.length)))
.equals(sampleString));
VO.ensure(sampleString.extract(VO.fromNative({from:0, upto:5})).equals(VO.String("Hello")));
VO.ensure(sampleString.skip(VO.Number(7)).take(VO.Number(5)).equals(VO.String("World")));
VO.ensure(VO.emptyString.concatenate(VO.emptyString).equals(VO.emptyString));
VO.ensure(sampleString.concatenate(VO.emptyString).equals(sampleString));
VO.ensure(VO.emptyString.concatenate(sampleString).equals(sampleString));
VO.ensure(sampleString.take(VO.Number(6))
.concatenate(sampleString.skip(VO.Number(6)))
.equals(sampleString));
VO.ensure(VO.String("foo").bind(VO.Number(42)).equals(VO.fromNative({ "foo": 42 })));
VO.ensure(VO.emptyString.append(VO.Number(72)).append(VO.Number(105))
.equals(VO.String("Hi")));
VO.ensure(sampleString.reduce(
function (c, x) {
return x.plus(VO.one);
}, VO.zero)
.equals(sampleString.length));
VO.ensure(VO.emptyString.equals(VO.String()));
VO.ensure(VO.emptyString.equals(VO.String("")));
VO.ensure(VO.emptyString.equals(new VO.String("")));
VO.ensure(VO.Boolean(VO.emptyString !== VO.String("")));
VO.ensure(VO.Boolean(VO.emptyString === VO.String()));
VO.ensure(VO.Boolean(new VO.String() === VO.String()));
VO.ensure(VO.emptyString.asJSON.equals(VO.String('""')));
VO.ensure(sampleString.asJSON.equals(VO.String('"Hello, World!"')));
VO.ensure(VO.String(" \r\n").asJSON.equals(VO.String('" \\r\\n"')));
// Array
VO.ensure(VO.emptyArray.equals(VO.zero).not);
VO.ensure(VO.emptyArray.equals(VO.emptyString).not);
VO.ensure(VO.emptyArray.equals(VO.emptyArray));
VO.ensure(VO.emptyArray.equals(VO.emptyObject).not);
VO.ensure(VO.emptyArray.hasType(VO.Value));
VO.ensure(VO.emptyArray.hasType(VO.Data));
VO.ensure(VO.emptyArray.hasType(VO.Null).not);
VO.ensure(VO.emptyArray.hasType(VO.Boolean).not);
VO.ensure(VO.emptyArray.hasType(VO.Number).not);
VO.ensure(VO.emptyArray.hasType(VO.Composite));
VO.ensure(VO.emptyArray.hasType(VO.String).not);