ember-legacy-class-transform
Version:
The default blueprint for ember-cli addons.
211 lines (184 loc) • 18.5 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.ComputedBlueprint = undefined;
exports.computed = computed;
exports.observer = observer;
var _objectReference = require("@glimmer/object-reference");
var _object = require("./object");
var _mixin = require("./mixin");
function _defaults(obj, defaults) {
var keys = Object.getOwnPropertyNames(defaults);for (var i = 0; i < keys.length; i++) {
var key = keys[i];var value = Object.getOwnPropertyDescriptor(defaults, key);if (value && value.configurable && obj[key] === undefined) {
Object.defineProperty(obj, key, value);
}
}return obj;
}
function _classCallCheck(instance, Constructor) {
if (!(instance instanceof Constructor)) {
throw new TypeError("Cannot call a class as a function");
}
}
function _possibleConstructorReturn(self, call) {
if (!self) {
throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
}return call && (typeof call === "object" || typeof call === "function") ? call : self;
}
function _inherits(subClass, superClass) {
if (typeof superClass !== "function" && superClass !== null) {
throw new TypeError("Super expression must either be null or a function, not " + typeof superClass);
}subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } });if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : _defaults(subClass, superClass);
}
var ComputedBlueprint = exports.ComputedBlueprint = function (_Blueprint) {
_inherits(ComputedBlueprint, _Blueprint);
function ComputedBlueprint(accessor) {
var deps = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : [];
_classCallCheck(this, ComputedBlueprint);
var _this = _possibleConstructorReturn(this, _Blueprint.call(this));
_this.metadata = {};
_this.accessor = accessor;
_this.deps = deps;
return _this;
}
ComputedBlueprint.prototype.descriptor = function descriptor(_target, key, classMeta) {
classMeta.addReferenceTypeFor(key, (0, _objectReference.ComputedReferenceBlueprint)(key, this.deps));
classMeta.addPropertyMetadata(key, this.metadata);
classMeta.addSlotFor(key);
return new Computed(this.accessor);
};
ComputedBlueprint.prototype.property = function property() {
for (var _len = arguments.length, paths = Array(_len), _key = 0; _key < _len; _key++) {
paths[_key] = arguments[_key];
}
this.deps = paths.map(function (d) {
return d.split('.');
});
return this;
};
ComputedBlueprint.prototype.meta = function meta(object) {
this.metadata = object;
return this;
};
ComputedBlueprint.prototype.volatile = function volatile() {
return this;
};
return ComputedBlueprint;
}(_mixin.Blueprint);
var Computed = function () {
function Computed(accessor) {
_classCallCheck(this, Computed);
this["5d90f84f-908e-4a42-9749-3d0f523c262c"] = true;
this.accessor = accessor;
}
Computed.prototype.define = function define(prototype, key, home) {
Object.defineProperty(prototype, key, wrapAccessor(home, key, this.accessor));
};
return Computed;
}();
function wrapAccessor(home, accessorName, _desc) {
var superDesc = getPropertyDescriptor(home, accessorName);
var originalGet = void 0;
var originalSet = void 0;
var desc = {
enumerable: true,
configurable: true
};
var get = _desc.get;
if (get && get.length > 0) {
originalGet = function () {
return get.call(this, accessorName);
};
} else {
originalGet = _desc.get;
}
var set = _desc.set;
if (set && set.length > 1) {
originalSet = function (value) {
return set.call(this, accessorName, value);
};
} else {
originalSet = _desc.set;
}
var cacheGet = function () {
if (_objectReference.Meta.exists(this)) {
var slot = _objectReference.Meta.for(this).getSlots()[accessorName];
if (slot !== _object.EMPTY_CACHE) return slot;
}
return originalGet.call(this);
};
var cacheSet = void 0;
if (originalSet) {
cacheSet = function (value) {
var meta = _objectReference.Meta.for(this);
var slots = meta.getSlots();
var ret = originalSet.call(this, value);
if (ret !== undefined) {
slots[accessorName] = ret;
}
};
} else {
cacheSet = function (value) {
var meta = _objectReference.Meta.for(this);
var slots = meta.getSlots();
if (value !== undefined) slots[accessorName] = value;
};
}
if (!superDesc || 'value' in superDesc) {
desc.get = cacheGet;
desc.set = cacheSet;
return desc;
}
desc.get = function () {
var lastSuper = this._super;
this._super = function () {
return superDesc.get.call(this);
};
try {
return cacheGet.call(this);
} finally {
this._super = lastSuper;
}
};
desc.set = function (val) {
var lastSuper = this._super;
this._super = function () {
return superDesc.set.call(this, val);
};
try {
return cacheSet.call(this, val);
} finally {
this._super = lastSuper;
}
};
return desc;
}
function getPropertyDescriptor(subject, name) {
var pd = Object.getOwnPropertyDescriptor(subject, name);
var proto = Object.getPrototypeOf(subject);
while (typeof pd === 'undefined' && proto !== null) {
pd = Object.getOwnPropertyDescriptor(proto, name);
proto = Object.getPrototypeOf(proto);
}
return pd;
}
function computed() {
for (var _len2 = arguments.length, args = Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
args[_key2] = arguments[_key2];
}
var last = args.pop();
var deps = args;
if (typeof last === 'function') {
var _ref;
return (_ref = new ComputedBlueprint({
get: last
})).property.apply(_ref, deps);
} else if (typeof last === 'object') {
var _ref2;
return (_ref2 = new ComputedBlueprint(last)).property.apply(_ref2, deps);
} else {
throw new TypeError("computed expects a function or an object as last argument");
}
}
function observer() {}
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{ ComputedReferenceBlueprint, Meta } from '@glimmer/object-reference';\nimport { EMPTY_CACHE } from './object';\nimport { Blueprint } from './mixin';\nexport class ComputedBlueprint extends Blueprint {\n    constructor(accessor, deps = []) {\n        super();\n        this.metadata = {};\n        this.accessor = accessor;\n        this.deps = deps;\n    }\n    descriptor(_target, key, classMeta) {\n        classMeta.addReferenceTypeFor(key, ComputedReferenceBlueprint(key, this.deps));\n        classMeta.addPropertyMetadata(key, this.metadata);\n        classMeta.addSlotFor(key);\n        return new Computed(this.accessor);\n    }\n    property(...paths) {\n        this.deps = paths.map(d => d.split('.'));\n        return this;\n    }\n    meta(object) {\n        this.metadata = object;\n        return this;\n    }\n    volatile() {\n        return this;\n    }\n}\nclass Computed {\n    constructor(accessor) {\n        this[\"5d90f84f-908e-4a42-9749-3d0f523c262c\"] = true;\n        this.accessor = accessor;\n    }\n    define(prototype, key, home) {\n        Object.defineProperty(prototype, key, wrapAccessor(home, key, this.accessor));\n    }\n}\nfunction wrapAccessor(home, accessorName, _desc) {\n    let superDesc = getPropertyDescriptor(home, accessorName);\n    let originalGet;\n    let originalSet;\n    let desc = {\n        enumerable: true,\n        configurable: true\n    };\n    let get = _desc.get;\n    if (get && get.length > 0) {\n        originalGet = function () {\n            return get.call(this, accessorName);\n        };\n    } else {\n        originalGet = _desc.get;\n    }\n    let set = _desc.set;\n    if (set && set.length > 1) {\n        originalSet = function (value) {\n            return set.call(this, accessorName, value);\n        };\n    } else {\n        originalSet = _desc.set;\n    }\n    let cacheGet = function () {\n        if (Meta.exists(this)) {\n            let slot = Meta.for(this).getSlots()[accessorName];\n            if (slot !== EMPTY_CACHE) return slot;\n        }\n        return originalGet.call(this);\n    };\n    let cacheSet;\n    if (originalSet) {\n        cacheSet = function (value) {\n            let meta = Meta.for(this);\n            let slots = meta.getSlots();\n            let ret = originalSet.call(this, value);\n            if (ret !== undefined) {\n                slots[accessorName] = ret;\n            }\n        };\n    } else {\n        cacheSet = function (value) {\n            let meta = Meta.for(this);\n            let slots = meta.getSlots();\n            if (value !== undefined) slots[accessorName] = value;\n        };\n    }\n    if (!superDesc || 'value' in superDesc) {\n        desc.get = cacheGet;\n        desc.set = cacheSet;\n        return desc;\n    }\n    desc.get = function () {\n        let lastSuper = this._super;\n        this._super = function () {\n            return superDesc.get.call(this);\n        };\n        try {\n            return cacheGet.call(this);\n        } finally {\n            this._super = lastSuper;\n        }\n    };\n    desc.set = function (val) {\n        let lastSuper = this._super;\n        this._super = function () {\n            return superDesc.set.call(this, val);\n        };\n        try {\n            return cacheSet.call(this, val);\n        } finally {\n            this._super = lastSuper;\n        }\n    };\n    return desc;\n}\nfunction getPropertyDescriptor(subject, name) {\n    let pd = Object.getOwnPropertyDescriptor(subject, name);\n    let proto = Object.getPrototypeOf(subject);\n    while (typeof pd === 'undefined' && proto !== null) {\n        pd = Object.getOwnPropertyDescriptor(proto, name);\n        proto = Object.getPrototypeOf(proto);\n    }\n    return pd;\n}\nexport function computed(...args) {\n    let last = args.pop();\n    let deps = args;\n    if (typeof last === 'function') {\n        return new ComputedBlueprint({\n            get: last\n        }).property(...deps);\n    } else if (typeof last === 'object') {\n        return new ComputedBlueprint(last).property(...deps);\n    } else {\n        throw new TypeError(\"computed expects a function or an object as last argument\");\n    }\n}\nexport function observer(..._args) {}"]}