ember-source/dist/packages/shared-chunks/alias-B6fcydrB.js

A JavaScript framework for creating ambitious web applications

import { meta } from '../@ember/-internals/meta/lib/meta.js';
import '../@ember/debug/index.js';
import { tagMetaFor, tagFor, untrack, validateTag, updateTag as UPDATE_TAG, valueForTag, consumeTag } from '../@glimmer/validator/index.js';
import { i as isElementDescriptor, F as makeComputedDecorator, E as descriptorForDecorator, J as ComputedDescriptor, K as CHAIN_PASS_THROUGH, g as get, L as getChainTagsForKey, M as finishLazyChains, d as defineProperty } from './cache-Djf2I3Za.js';
import { s as set } from './property_set-DS4X3Soy.js';
import { isDevelopingApp } from '@embroider/macros';
import { assert } from '../@ember/debug/lib/assert.js';
import inspect from '../@ember/debug/lib/inspect.js';

function alias(altKey) {
  (isDevelopingApp() && !(!isElementDescriptor(Array.prototype.slice.call(arguments))) && assert('You attempted to use @alias as a decorator directly, but it requires a `altKey` parameter', !isElementDescriptor(Array.prototype.slice.call(arguments)))); // SAFETY: We passed in the impl for this class
  return makeComputedDecorator(new AliasedProperty(altKey), AliasDecoratorImpl);
}

// TODO: This class can be svelted once `meta` has been deprecated
class AliasDecoratorImpl extends Function {
  readOnly() {
    descriptorForDecorator(this).readOnly();
    return this;
  }
  oneWay() {
    descriptorForDecorator(this).oneWay();
    return this;
  }
  meta(meta) {
    let prop = descriptorForDecorator(this);
    if (arguments.length === 0) {
      return prop._meta || {};
    } else {
      prop._meta = meta;
    }
  }
}
class AliasedProperty extends ComputedDescriptor {
  altKey;
  constructor(altKey) {
    super();
    this.altKey = altKey;
  }
  setup(obj, keyName, propertyDesc, meta) {
    (isDevelopingApp() && !(this.altKey !== keyName) && assert(`Setting alias '${keyName}' on self`, this.altKey !== keyName));
    super.setup(obj, keyName, propertyDesc, meta);
    CHAIN_PASS_THROUGH.add(this);
  }
  get(obj, keyName) {
    let ret;
    let meta$1 = meta(obj);
    let tagMeta = tagMetaFor(obj);
    let propertyTag = tagFor(obj, keyName, tagMeta);

    // We don't use the tag since CPs are not automatic, we just want to avoid
    // anything tracking while we get the altKey
    untrack(() => {
      ret = get(obj, this.altKey);
    });
    let lastRevision = meta$1.revisionFor(keyName);
    if (lastRevision === undefined || !validateTag(propertyTag, lastRevision)) {
      UPDATE_TAG(propertyTag, getChainTagsForKey(obj, this.altKey, tagMeta, meta$1));
      meta$1.setRevisionFor(keyName, valueForTag(propertyTag));
      finishLazyChains(meta$1, keyName, ret);
    }
    consumeTag(propertyTag);
    return ret;
  }
  set(obj, _keyName, value) {
    return set(obj, this.altKey, value);
  }
  readOnly() {
    this.set = AliasedProperty_readOnlySet;
  }
  oneWay() {
    this.set = AliasedProperty_oneWaySet;
  }
}
function AliasedProperty_readOnlySet(obj, keyName) {
  throw new Error(`Cannot set read-only property '${keyName}' on object: ${inspect(obj)}`);
}
function AliasedProperty_oneWaySet(obj, keyName, value) {
  defineProperty(obj, keyName, null);
  return set(obj, keyName, value);
}

export { alias as a };