Files
blockly/core/utils/object.ts
Maribeth Bottorff 037eb59b89 chore: Lint TsDoc. (#6353)
* chore: add linting for tsdoc

* chore: don't require types on return

* chore: remove redundant fileoverview from ts

* chore: change return to returns and add some newlines

* chore: remove license tag

* chore: don't require params/return docs

* chore: remove spurious struct tags

* Revert "chore: change return to returns and add some newlines"

This reverts commit d6d8656a45.

* chore: don't auto-add param names

* chore: disable require-param bc it breaks on this

* return to returns and add line breaks

* chore: configure additional jsdoc rules

* chore: run format

* Revert "chore: remove license tag"

This reverts commit 173455588a.

* chore: allow license tag format

* chore: only require jsdoc on exported items

* chore: add missing jsdoc or silence where needed

* chore: run format

* chore: lint fixes
2022-08-23 14:27:22 -07:00

97 lines
2.8 KiB
TypeScript

/**
* @license
* Copyright 2019 Google LLC
* SPDX-License-Identifier: Apache-2.0
*/
/**
* Utility methods for objects.
*
* @namespace Blockly.utils.object
*/
import * as goog from '../../closure/goog/goog.js';
goog.declareModuleId('Blockly.utils.object');
import * as deprecation from './deprecation.js';
/**
* Inherit the prototype methods from one constructor into another.
*
* @param childCtor Child class.
* @param parentCtor Parent class.
* @suppress {strictMissingProperties} superClass_ is not defined on Function.
* @alias Blockly.utils.object.inherits
*/
export function inherits(childCtor: Function, parentCtor: Function) {
// Set a .superClass_ property so that methods can call parent methods
// without hard-coding the parent class name.
// Could be replaced by ES6's super().
// AnyDuringMigration because: Property 'superClass_' does not exist on type
// 'Function'.
(childCtor as AnyDuringMigration).superClass_ = parentCtor.prototype;
// Link the child class to the parent class so that static methods inherit.
Object.setPrototypeOf(childCtor, parentCtor);
// Replace the child constructor's prototype object with an instance
// of the parent class.
childCtor.prototype = Object.create(parentCtor.prototype);
childCtor.prototype.constructor = childCtor;
}
// Alternatively, one could use this instead:
// Object.setPrototypeOf(childCtor.prototype, parentCtor.prototype);
/**
* Copies all the members of a source object to a target object.
*
* @param target Target.
* @param source Source.
* @alias Blockly.utils.object.mixin
*/
export function mixin(target: AnyDuringMigration, source: AnyDuringMigration) {
deprecation.warn(
'Blockly.utils.object.mixin', 'May 2022', 'May 2023', 'Object.assign');
for (const x in source) {
target[x] = source[x];
}
}
/**
* Complete a deep merge of all members of a source object with a target object.
*
* @param target Target.
* @param source Source.
* @returns The resulting object.
* @alias Blockly.utils.object.deepMerge
*/
export function deepMerge(
target: AnyDuringMigration,
source: AnyDuringMigration): AnyDuringMigration {
for (const x in source) {
if (source[x] !== null && typeof source[x] === 'object') {
target[x] = deepMerge(target[x] || Object.create(null), source[x]);
} else {
target[x] = source[x];
}
}
return target;
}
/**
* Returns an array of a given object's own enumerable property values.
*
* @param obj Object containing values.
* @returns Array of values.
* @alias Blockly.utils.object.values
*/
export function values(obj: AnyDuringMigration): AnyDuringMigration[] {
if (Object.values) {
return Object.values(obj);
}
// Fallback for IE.
return Object.keys(obj).map(function(e) {
return obj[e];
});
}