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object.js
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object.js
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/**
* @constructor
* Sk.builtin.object
*
* @description
* Constructor for Python object. All Python classes (builtin and user-defined)
* should inherit from this class.
*
* @return {Sk.builtin.object} Python object
*/
Sk.builtin.object = function () {
if (!(this instanceof Sk.builtin.object)) {
return new Sk.builtin.object();
}
return this;
};
/**
* @return {undefined}
*/
Sk.builtin.object.prototype.GenericGetAttr = function (name) {
var res;
var f;
var descr;
var tp;
var dict;
var pyName = new Sk.builtin.str(name);
goog.asserts.assert(typeof name === "string");
tp = this.ob$type;
goog.asserts.assert(tp !== undefined, "object has no ob$type!");
dict = this["$d"] || this.constructor["$d"];
// todo; assert? force?
if (dict) {
if (dict.mp$lookup) {
res = dict.mp$lookup(pyName);
} else if (dict.mp$subscript) {
try {
res = dict.mp$subscript(pyName);
} catch (x) {
res = undefined;
}
} else if (typeof dict === "object") {
// todo; definitely the wrong place for this. other custom tp$getattr won't work on object -- bnm -- implemented custom __getattr__ in abstract.js
res = dict[name];
}
if (res !== undefined) {
return res;
}
}
descr = Sk.builtin.type.typeLookup(tp, name);
// otherwise, look in the type for a descr
if (descr !== undefined && descr !== null && descr.ob$type !== undefined) {
f = descr.ob$type.tp$descr_get;
// todo;
//if (f && descr.tp$descr_set) // is a data descriptor if it has a set
//return f.call(descr, this, this.ob$type);
}
if (f) {
// non-data descriptor
return f.call(descr, this, this.ob$type);
}
if (descr !== undefined) {
return descr;
}
return undefined;
};
goog.exportSymbol("Sk.builtin.object.prototype.GenericGetAttr", Sk.builtin.object.prototype.GenericGetAttr);
Sk.builtin.object.prototype.GenericPythonGetAttr = function(self, name) {
return Sk.builtin.object.prototype.GenericGetAttr.call(self, name.v);
};
goog.exportSymbol("Sk.builtin.object.prototype.GenericPythonGetAttr", Sk.builtin.object.prototype.GenericPythonGetAttr);
Sk.builtin.object.prototype.GenericSetAttr = function (name, value) {
var objname = Sk.abstr.typeName(this);
var pyname;
var dict;
goog.asserts.assert(typeof name === "string");
// todo; lots o' stuff
dict = this["$d"] || this.constructor["$d"];
if (dict.mp$ass_subscript) {
pyname = new Sk.builtin.str(name);
if (this instanceof Sk.builtin.object && !(this.ob$type.sk$klass) &&
dict.mp$lookup(pyname) === undefined) {
// Cannot add new attributes to a builtin object
throw new Sk.builtin.AttributeError("'" + objname + "' object has no attribute '" + name + "'");
}
dict.mp$ass_subscript(new Sk.builtin.str(name), value);
} else if (typeof dict === "object") {
dict[name] = value;
}
};
goog.exportSymbol("Sk.builtin.object.prototype.GenericSetAttr", Sk.builtin.object.prototype.GenericSetAttr);
Sk.builtin.object.prototype.GenericPythonSetAttr = function(self, name, value) {
return Sk.builtin.object.prototype.GenericSetAttr.call(self, name.v, value);
};
goog.exportSymbol("Sk.builtin.object.prototype.GenericPythonSetAttr", Sk.builtin.object.prototype.GenericPythonSetAttr);
Sk.builtin.object.prototype.HashNotImplemented = function () {
throw new Sk.builtin.TypeError("unhashable type: '" + Sk.abstr.typeName(this) + "'");
};
Sk.builtin.object.prototype.tp$getattr = Sk.builtin.object.prototype.GenericGetAttr;
Sk.builtin.object.prototype.tp$setattr = Sk.builtin.object.prototype.GenericSetAttr;
// Although actual attribute-getting happens in pure Javascript via tp$getattr, classes
// overriding __getattr__ etc need to be able to call object.__getattr__ etc from Python
Sk.builtin.object.prototype["__getattr__"] = Sk.builtin.object.prototype.GenericPythonGetAttr;
Sk.builtin.object.prototype["__setattr__"] = Sk.builtin.object.prototype.GenericPythonSetAttr;
/**
* The name of this class.
* @type {string}
*/
Sk.builtin.object.prototype.tp$name = "object";
/**
* The type object of this class.
* @type {Sk.builtin.type}
*/
Sk.builtin.object.prototype.ob$type = Sk.builtin.type.makeIntoTypeObj("object", Sk.builtin.object);
Sk.builtin.object.prototype.ob$type.sk$klass = undefined; // Nonsense for closure compiler
/** Default implementations of dunder methods found in all Python objects */
/**
* Python wrapper for `__repr__` method.
* @name __repr__
* @memberOf Sk.builtin.object.prototype
* @instance
*/
Sk.builtin.object.prototype["__repr__"] = function (self) {
Sk.builtin.pyCheckArgs("__repr__", arguments, 0, 0, false, true);
return self["$r"]();
};
/**
* Python wrapper for `__str__` method.
* @name __str__
* @memberOf Sk.builtin.object.prototype
* @instance
*/
Sk.builtin.object.prototype["__str__"] = function (self) {
Sk.builtin.pyCheckArgs("__str__", arguments, 0, 0, false, true);
return self["$r"]();
};
/**
* Python wrapper for `__hash__` method.
* @name __hash__
* @memberOf Sk.builtin.object.prototype
* @instance
*/
Sk.builtin.object.prototype["__hash__"] = function (self) {
Sk.builtin.pyCheckArgs("__hash__", arguments, 0, 0, false, true);
return self.tp$hash();
};
/**
* Python wrapper for `__eq__` method.
* @name __eq__
* @memberOf Sk.builtin.object.prototype
* @instance
*/
Sk.builtin.object.prototype["__eq__"] = function (self, other) {
Sk.builtin.pyCheckArgs("__eq__", arguments, 1, 1, false, true);
return self.ob$eq(other);
};
/**
* Python wrapper for `__ne__` method.
* @name __ne__
* @memberOf Sk.builtin.object.prototype
* @instance
*/
Sk.builtin.object.prototype["__ne__"] = function (self, other) {
Sk.builtin.pyCheckArgs("__ne__", arguments, 1, 1, false, true);
return self.ob$ne(other);
};
/**
* Python wrapper for `__lt__` method.
* @name __lt__
* @memberOf Sk.builtin.object.prototype
* @instance
*/
Sk.builtin.object.prototype["__lt__"] = function (self, other) {
Sk.builtin.pyCheckArgs("__lt__", arguments, 1, 1, false, true);
return self.ob$lt(other);
};
/**
* Python wrapper for `__le__` method.
* @name __le__
* @memberOf Sk.builtin.object.prototype
* @instance
*/
Sk.builtin.object.prototype["__le__"] = function (self, other) {
Sk.builtin.pyCheckArgs("__le__", arguments, 1, 1, false, true);
return self.ob$le(other);
};
/**
* Python wrapper for `__gt__` method.
* @name __gt__
* @memberOf Sk.builtin.object.prototype
* @instance
*/
Sk.builtin.object.prototype["__gt__"] = function (self, other) {
Sk.builtin.pyCheckArgs("__gt__", arguments, 1, 1, false, true);
return self.ob$gt(other);
};
/**
* Python wrapper for `__ge__` method.
* @name __ge__
* @memberOf Sk.builtin.object.prototype
* @instance
*/
Sk.builtin.object.prototype["__ge__"] = function (self, other) {
Sk.builtin.pyCheckArgs("__ge__", arguments, 1, 1, false, true);
return self.ob$ge(other);
};
/** Default implementations of Javascript functions used in dunder methods */
/**
* Return the string representation of this instance.
*
* Javascript function, returns Python object.
*
* @name $r
* @memberOf Sk.builtin.object.prototype
* @return {Sk.builtin.str} The Python string representation of this instance.
*/
Sk.builtin.object.prototype["$r"] = function () {
return new Sk.builtin.str("<object>");
};
Sk.builtin.hashCount = 1;
/**
* Return the hash value of this instance.
*
* Javascript function, returns Python object.
*
* @return {Sk.builtin.int_} The hash value
*/
Sk.builtin.object.prototype.tp$hash = function () {
if (!this.$savedHash_) {
this.$savedHash_ = new Sk.builtin.int_(Sk.builtin.hashCount++);
}
return this.$savedHash_;
};
/**
* Perform equality check between this instance and a Python object (i.e. this == other).
*
* Implements `__eq__` dunder method.
*
* Javascript function, returns Python object.
*
* @param {Object} other The Python object to check for equality.
* @return {(Sk.builtin.bool|Sk.builtin.NotImplemented)} true if equal, false otherwise
*/
Sk.builtin.object.prototype.ob$eq = function (other) {
if (this === other) {
return Sk.builtin.bool.true$;
}
return Sk.builtin.NotImplemented.NotImplemented$;
};
/**
* Perform non-equality check between this instance and a Python object (i.e. this != other).
*
* Implements `__ne__` dunder method.
*
* Javascript function, returns Python object.
*
* @param {Object} other The Python object to check for non-equality.
* @return {(Sk.builtin.bool|Sk.builtin.NotImplemented)} true if not equal, false otherwise
*/
Sk.builtin.object.prototype.ob$ne = function (other) {
if (this === other) {
return Sk.builtin.bool.false$;
}
return Sk.builtin.NotImplemented.NotImplemented$;
};
/**
* Determine if this instance is less than a Python object (i.e. this < other).
*
* Implements `__lt__` dunder method.
*
* Javascript function, returns Python object.
*
* @param {Object} other The Python object to compare.
* @return {(Sk.builtin.bool|Sk.builtin.NotImplemented)} true if this < other, false otherwise
*/
Sk.builtin.object.prototype.ob$lt = function (other) {
return Sk.builtin.NotImplemented.NotImplemented$;
};
/**
* Determine if this instance is less than or equal to a Python object (i.e. this <= other).
*
* Implements `__le__` dunder method.
*
* Javascript function, returns Python object.
*
* @param {Object} other The Python object to compare.
* @return {(Sk.builtin.bool|Sk.builtin.NotImplemented)} true if this <= other, false otherwise
*/
Sk.builtin.object.prototype.ob$le = function (other) {
return Sk.builtin.NotImplemented.NotImplemented$;
};
/**
* Determine if this instance is greater than a Python object (i.e. this > other).
*
* Implements `__gt__` dunder method.
*
* Javascript function, returns Python object.
*
* @param {Object} other The Python object to compare.
* @return {(Sk.builtin.bool|Sk.builtin.NotImplemented)} true if this > other, false otherwise
*/
Sk.builtin.object.prototype.ob$gt = function (other) {
return Sk.builtin.NotImplemented.NotImplemented$;
};
/**
* Determine if this instance is greater than or equal to a Python object (i.e. this >= other).
*
* Implements `__ge__` dunder method.
*
* Javascript function, returns Python object.
*
* @param {Object} other The Python object to compare.
* @return {(Sk.builtin.bool|Sk.builtin.NotImplemented)} true if this >= other, false otherwise
*/
Sk.builtin.object.prototype.ob$ge = function (other) {
return Sk.builtin.NotImplemented.NotImplemented$;
};
// Wrap the following functions in Sk.builtin.func once that class is initialized
/**
* Array of all the Python functions which are methods of this class.
* @type {Array}
*/
Sk.builtin.object.pythonFunctions = ["__repr__", "__str__", "__hash__",
"__eq__", "__ne__", "__lt__", "__le__", "__gt__", "__ge__", "__getattr__", "__setattr__"];
/**
* @constructor
* Sk.builtin.none
*
* @extends {Sk.builtin.object}
*/
Sk.builtin.none = function () {
this.v = null;
};
Sk.abstr.setUpInheritance("NoneType", Sk.builtin.none, Sk.builtin.object);
/** @override */
Sk.builtin.none.prototype["$r"] = function () { return new Sk.builtin.str("None"); };
/** @override */
Sk.builtin.none.prototype.tp$hash = function () {
return new Sk.builtin.int_(0);
};
/**
* Python None constant.
* @type {Sk.builtin.none}
*/
Sk.builtin.none.none$ = new Sk.builtin.none();
/**
* @constructor
* Sk.builtin.NotImplemented
*
* @extends {Sk.builtin.object}
*/
Sk.builtin.NotImplemented = function() { };
Sk.abstr.setUpInheritance("NotImplementedType", Sk.builtin.NotImplemented, Sk.builtin.object);
/** @override */
Sk.builtin.NotImplemented.prototype["$r"] = function () { return new Sk.builtin.str("NotImplemented"); };
/**
* Python NotImplemented constant.
* @type {Sk.builtin.NotImplemented}
*/
Sk.builtin.NotImplemented.NotImplemented$ = new Sk.builtin.NotImplemented();
goog.exportSymbol("Sk.builtin.none", Sk.builtin.none);
goog.exportSymbol("Sk.builtin.NotImplemented", Sk.builtin.NotImplemented);