ember-legacy-class-transform
Version:
The default blueprint for ember-cli addons.
151 lines (146 loc) • 16.3 kB
JavaScript
'use strict';
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');
class ComputedBlueprint extends _mixin.Blueprint {
constructor(accessor, deps = []) {
super();
this.metadata = {};
this.accessor = accessor;
this.deps = deps;
}
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);
}
property(...paths) {
this.deps = paths.map(d => d.split('.'));
return this;
}
meta(object) {
this.metadata = object;
return this;
}
volatile() {
return this;
}
}
exports.ComputedBlueprint = ComputedBlueprint;
class Computed {
constructor(accessor) {
this["5d90f84f-908e-4a42-9749-3d0f523c262c"] = true;
this.accessor = accessor;
}
define(prototype, key, home) {
Object.defineProperty(prototype, key, wrapAccessor(home, key, this.accessor));
}
}
function wrapAccessor(home, accessorName, _desc) {
let superDesc = getPropertyDescriptor(home, accessorName);
let originalGet;
let originalSet;
let desc = {
enumerable: true,
configurable: true
};
let get = _desc.get;
if (get && get.length > 0) {
originalGet = function () {
return get.call(this, accessorName);
};
} else {
originalGet = _desc.get;
}
let set = _desc.set;
if (set && set.length > 1) {
originalSet = function (value) {
return set.call(this, accessorName, value);
};
} else {
originalSet = _desc.set;
}
let cacheGet = function () {
if (_objectReference.Meta.exists(this)) {
let slot = _objectReference.Meta.for(this).getSlots()[accessorName];
if (slot !== _object.EMPTY_CACHE) return slot;
}
return originalGet.call(this);
};
let cacheSet;
if (originalSet) {
cacheSet = function (value) {
let meta = _objectReference.Meta.for(this);
let slots = meta.getSlots();
let ret = originalSet.call(this, value);
if (ret !== undefined) {
slots[accessorName] = ret;
}
};
} else {
cacheSet = function (value) {
let meta = _objectReference.Meta.for(this);
let 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 () {
let lastSuper = this._super;
this._super = function () {
return superDesc.get.call(this);
};
try {
return cacheGet.call(this);
} finally {
this._super = lastSuper;
}
};
desc.set = function (val) {
let 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) {
let pd = Object.getOwnPropertyDescriptor(subject, name);
let proto = Object.getPrototypeOf(subject);
while (typeof pd === 'undefined' && proto !== null) {
pd = Object.getOwnPropertyDescriptor(proto, name);
proto = Object.getPrototypeOf(proto);
}
return pd;
}
function computed(...args) {
let last = args.pop();
let deps = args;
if (typeof last === 'function') {
return new ComputedBlueprint({
get: last
}).property(...deps);
} else if (typeof last === 'object') {
return new ComputedBlueprint(last).property(...deps);
} else {
throw new TypeError("computed expects a function or an object as last argument");
}
}
function observer(..._args) {}
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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) {}"]}