diff options
author | Brian Picciano <mediocregopher@gmail.com> | 2022-09-13 12:56:08 +0200 |
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committer | Brian Picciano <mediocregopher@gmail.com> | 2022-09-13 12:56:08 +0200 |
commit | 4f01edb9230f58ff84b0dd892c931ec8ac9aad55 (patch) | |
tree | 9c1598a3f98203913ac2548883c02a81deb33dc7 /src/http/static/viz/2/goog/object | |
parent | 5485984e05aebde22819adebfbd5ad51475a6c21 (diff) |
move src out of srv, clean up default.nix and Makefile
Diffstat (limited to 'src/http/static/viz/2/goog/object')
-rw-r--r-- | src/http/static/viz/2/goog/object/object.js | 751 |
1 files changed, 751 insertions, 0 deletions
diff --git a/src/http/static/viz/2/goog/object/object.js b/src/http/static/viz/2/goog/object/object.js new file mode 100644 index 0000000..2f26c2b --- /dev/null +++ b/src/http/static/viz/2/goog/object/object.js @@ -0,0 +1,751 @@ +// Copyright 2006 The Closure Library Authors. All Rights Reserved. +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS-IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +/** + * @fileoverview Utilities for manipulating objects/maps/hashes. + * @author arv@google.com (Erik Arvidsson) + */ + +goog.provide('goog.object'); + + +/** + * Whether two values are not observably distinguishable. This + * correctly detects that 0 is not the same as -0 and two NaNs are + * practically equivalent. + * + * The implementation is as suggested by harmony:egal proposal. + * + * @param {*} v The first value to compare. + * @param {*} v2 The second value to compare. + * @return {boolean} Whether two values are not observably distinguishable. + * @see http://wiki.ecmascript.org/doku.php?id=harmony:egal + */ +goog.object.is = function(v, v2) { + if (v === v2) { + // 0 === -0, but they are not identical. + // We need the cast because the compiler requires that v2 is a + // number (although 1/v2 works with non-number). We cast to ? to + // stop the compiler from type-checking this statement. + return v !== 0 || 1 / v === 1 / /** @type {?} */ (v2); + } + + // NaN is non-reflexive: NaN !== NaN, although they are identical. + return v !== v && v2 !== v2; +}; + + +/** + * Calls a function for each element in an object/map/hash. + * + * @param {Object<K,V>} obj The object over which to iterate. + * @param {function(this:T,V,?,Object<K,V>):?} f The function to call + * for every element. This function takes 3 arguments (the value, the + * key and the object) and the return value is ignored. + * @param {T=} opt_obj This is used as the 'this' object within f. + * @template T,K,V + */ +goog.object.forEach = function(obj, f, opt_obj) { + for (var key in obj) { + f.call(/** @type {?} */ (opt_obj), obj[key], key, obj); + } +}; + + +/** + * Calls a function for each element in an object/map/hash. If that call returns + * true, adds the element to a new object. + * + * @param {Object<K,V>} obj The object over which to iterate. + * @param {function(this:T,V,?,Object<K,V>):boolean} f The function to call + * for every element. This + * function takes 3 arguments (the value, the key and the object) + * and should return a boolean. If the return value is true the + * element is added to the result object. If it is false the + * element is not included. + * @param {T=} opt_obj This is used as the 'this' object within f. + * @return {!Object<K,V>} a new object in which only elements that passed the + * test are present. + * @template T,K,V + */ +goog.object.filter = function(obj, f, opt_obj) { + var res = {}; + for (var key in obj) { + if (f.call(/** @type {?} */ (opt_obj), obj[key], key, obj)) { + res[key] = obj[key]; + } + } + return res; +}; + + +/** + * For every element in an object/map/hash calls a function and inserts the + * result into a new object. + * + * @param {Object<K,V>} obj The object over which to iterate. + * @param {function(this:T,V,?,Object<K,V>):R} f The function to call + * for every element. This function + * takes 3 arguments (the value, the key and the object) + * and should return something. The result will be inserted + * into a new object. + * @param {T=} opt_obj This is used as the 'this' object within f. + * @return {!Object<K,R>} a new object with the results from f. + * @template T,K,V,R + */ +goog.object.map = function(obj, f, opt_obj) { + var res = {}; + for (var key in obj) { + res[key] = f.call(/** @type {?} */ (opt_obj), obj[key], key, obj); + } + return res; +}; + + +/** + * Calls a function for each element in an object/map/hash. If any + * call returns true, returns true (without checking the rest). If + * all calls return false, returns false. + * + * @param {Object<K,V>} obj The object to check. + * @param {function(this:T,V,?,Object<K,V>):boolean} f The function to + * call for every element. This function + * takes 3 arguments (the value, the key and the object) and should + * return a boolean. + * @param {T=} opt_obj This is used as the 'this' object within f. + * @return {boolean} true if any element passes the test. + * @template T,K,V + */ +goog.object.some = function(obj, f, opt_obj) { + for (var key in obj) { + if (f.call(/** @type {?} */ (opt_obj), obj[key], key, obj)) { + return true; + } + } + return false; +}; + + +/** + * Calls a function for each element in an object/map/hash. If + * all calls return true, returns true. If any call returns false, returns + * false at this point and does not continue to check the remaining elements. + * + * @param {Object<K,V>} obj The object to check. + * @param {?function(this:T,V,?,Object<K,V>):boolean} f The function to + * call for every element. This function + * takes 3 arguments (the value, the key and the object) and should + * return a boolean. + * @param {T=} opt_obj This is used as the 'this' object within f. + * @return {boolean} false if any element fails the test. + * @template T,K,V + */ +goog.object.every = function(obj, f, opt_obj) { + for (var key in obj) { + if (!f.call(/** @type {?} */ (opt_obj), obj[key], key, obj)) { + return false; + } + } + return true; +}; + + +/** + * Returns the number of key-value pairs in the object map. + * + * @param {Object} obj The object for which to get the number of key-value + * pairs. + * @return {number} The number of key-value pairs in the object map. + */ +goog.object.getCount = function(obj) { + var rv = 0; + for (var key in obj) { + rv++; + } + return rv; +}; + + +/** + * Returns one key from the object map, if any exists. + * For map literals the returned key will be the first one in most of the + * browsers (a know exception is Konqueror). + * + * @param {Object} obj The object to pick a key from. + * @return {string|undefined} The key or undefined if the object is empty. + */ +goog.object.getAnyKey = function(obj) { + for (var key in obj) { + return key; + } +}; + + +/** + * Returns one value from the object map, if any exists. + * For map literals the returned value will be the first one in most of the + * browsers (a know exception is Konqueror). + * + * @param {Object<K,V>} obj The object to pick a value from. + * @return {V|undefined} The value or undefined if the object is empty. + * @template K,V + */ +goog.object.getAnyValue = function(obj) { + for (var key in obj) { + return obj[key]; + } +}; + + +/** + * Whether the object/hash/map contains the given object as a value. + * An alias for goog.object.containsValue(obj, val). + * + * @param {Object<K,V>} obj The object in which to look for val. + * @param {V} val The object for which to check. + * @return {boolean} true if val is present. + * @template K,V + */ +goog.object.contains = function(obj, val) { + return goog.object.containsValue(obj, val); +}; + + +/** + * Returns the values of the object/map/hash. + * + * @param {Object<K,V>} obj The object from which to get the values. + * @return {!Array<V>} The values in the object/map/hash. + * @template K,V + */ +goog.object.getValues = function(obj) { + var res = []; + var i = 0; + for (var key in obj) { + res[i++] = obj[key]; + } + return res; +}; + + +/** + * Returns the keys of the object/map/hash. + * + * @param {Object} obj The object from which to get the keys. + * @return {!Array<string>} Array of property keys. + */ +goog.object.getKeys = function(obj) { + var res = []; + var i = 0; + for (var key in obj) { + res[i++] = key; + } + return res; +}; + + +/** + * Get a value from an object multiple levels deep. This is useful for + * pulling values from deeply nested objects, such as JSON responses. + * Example usage: getValueByKeys(jsonObj, 'foo', 'entries', 3) + * + * @param {!Object} obj An object to get the value from. Can be array-like. + * @param {...(string|number|!IArrayLike<number|string>)} + * var_args A number of keys + * (as strings, or numbers, for array-like objects). Can also be + * specified as a single array of keys. + * @return {*} The resulting value. If, at any point, the value for a key + * is undefined, returns undefined. + */ +goog.object.getValueByKeys = function(obj, var_args) { + var isArrayLike = goog.isArrayLike(var_args); + var keys = isArrayLike ? var_args : arguments; + + // Start with the 2nd parameter for the variable parameters syntax. + for (var i = isArrayLike ? 0 : 1; i < keys.length; i++) { + obj = obj[keys[i]]; + if (!goog.isDef(obj)) { + break; + } + } + + return obj; +}; + + +/** + * Whether the object/map/hash contains the given key. + * + * @param {Object} obj The object in which to look for key. + * @param {?} key The key for which to check. + * @return {boolean} true If the map contains the key. + */ +goog.object.containsKey = function(obj, key) { + return obj !== null && key in obj; +}; + + +/** + * Whether the object/map/hash contains the given value. This is O(n). + * + * @param {Object<K,V>} obj The object in which to look for val. + * @param {V} val The value for which to check. + * @return {boolean} true If the map contains the value. + * @template K,V + */ +goog.object.containsValue = function(obj, val) { + for (var key in obj) { + if (obj[key] == val) { + return true; + } + } + return false; +}; + + +/** + * Searches an object for an element that satisfies the given condition and + * returns its key. + * @param {Object<K,V>} obj The object to search in. + * @param {function(this:T,V,string,Object<K,V>):boolean} f The + * function to call for every element. Takes 3 arguments (the value, + * the key and the object) and should return a boolean. + * @param {T=} opt_this An optional "this" context for the function. + * @return {string|undefined} The key of an element for which the function + * returns true or undefined if no such element is found. + * @template T,K,V + */ +goog.object.findKey = function(obj, f, opt_this) { + for (var key in obj) { + if (f.call(/** @type {?} */ (opt_this), obj[key], key, obj)) { + return key; + } + } + return undefined; +}; + + +/** + * Searches an object for an element that satisfies the given condition and + * returns its value. + * @param {Object<K,V>} obj The object to search in. + * @param {function(this:T,V,string,Object<K,V>):boolean} f The function + * to call for every element. Takes 3 arguments (the value, the key + * and the object) and should return a boolean. + * @param {T=} opt_this An optional "this" context for the function. + * @return {V} The value of an element for which the function returns true or + * undefined if no such element is found. + * @template T,K,V + */ +goog.object.findValue = function(obj, f, opt_this) { + var key = goog.object.findKey(obj, f, opt_this); + return key && obj[key]; +}; + + +/** + * Whether the object/map/hash is empty. + * + * @param {Object} obj The object to test. + * @return {boolean} true if obj is empty. + */ +goog.object.isEmpty = function(obj) { + for (var key in obj) { + return false; + } + return true; +}; + + +/** + * Removes all key value pairs from the object/map/hash. + * + * @param {Object} obj The object to clear. + */ +goog.object.clear = function(obj) { + for (var i in obj) { + delete obj[i]; + } +}; + + +/** + * Removes a key-value pair based on the key. + * + * @param {Object} obj The object from which to remove the key. + * @param {?} key The key to remove. + * @return {boolean} Whether an element was removed. + */ +goog.object.remove = function(obj, key) { + var rv; + if (rv = key in /** @type {!Object} */ (obj)) { + delete obj[key]; + } + return rv; +}; + + +/** + * Adds a key-value pair to the object. Throws an exception if the key is + * already in use. Use set if you want to change an existing pair. + * + * @param {Object<K,V>} obj The object to which to add the key-value pair. + * @param {string} key The key to add. + * @param {V} val The value to add. + * @template K,V + */ +goog.object.add = function(obj, key, val) { + if (obj !== null && key in obj) { + throw Error('The object already contains the key "' + key + '"'); + } + goog.object.set(obj, key, val); +}; + + +/** + * Returns the value for the given key. + * + * @param {Object<K,V>} obj The object from which to get the value. + * @param {string} key The key for which to get the value. + * @param {R=} opt_val The value to return if no item is found for the given + * key (default is undefined). + * @return {V|R|undefined} The value for the given key. + * @template K,V,R + */ +goog.object.get = function(obj, key, opt_val) { + if (obj !== null && key in obj) { + return obj[key]; + } + return opt_val; +}; + + +/** + * Adds a key-value pair to the object/map/hash. + * + * @param {Object<K,V>} obj The object to which to add the key-value pair. + * @param {string} key The key to add. + * @param {V} value The value to add. + * @template K,V + */ +goog.object.set = function(obj, key, value) { + obj[key] = value; +}; + + +/** + * Adds a key-value pair to the object/map/hash if it doesn't exist yet. + * + * @param {Object<K,V>} obj The object to which to add the key-value pair. + * @param {string} key The key to add. + * @param {V} value The value to add if the key wasn't present. + * @return {V} The value of the entry at the end of the function. + * @template K,V + */ +goog.object.setIfUndefined = function(obj, key, value) { + return key in /** @type {!Object} */ (obj) ? obj[key] : (obj[key] = value); +}; + + +/** + * Sets a key and value to an object if the key is not set. The value will be + * the return value of the given function. If the key already exists, the + * object will not be changed and the function will not be called (the function + * will be lazily evaluated -- only called if necessary). + * + * This function is particularly useful for use with a map used a as a cache. + * + * @param {!Object<K,V>} obj The object to which to add the key-value pair. + * @param {string} key The key to add. + * @param {function():V} f The value to add if the key wasn't present. + * @return {V} The value of the entry at the end of the function. + * @template K,V + */ +goog.object.setWithReturnValueIfNotSet = function(obj, key, f) { + if (key in obj) { + return obj[key]; + } + + var val = f(); + obj[key] = val; + return val; +}; + + +/** + * Compares two objects for equality using === on the values. + * + * @param {!Object<K,V>} a + * @param {!Object<K,V>} b + * @return {boolean} + * @template K,V + */ +goog.object.equals = function(a, b) { + for (var k in a) { + if (!(k in b) || a[k] !== b[k]) { + return false; + } + } + for (var k in b) { + if (!(k in a)) { + return false; + } + } + return true; +}; + + +/** + * Returns a shallow clone of the object. + * + * @param {Object<K,V>} obj Object to clone. + * @return {!Object<K,V>} Clone of the input object. + * @template K,V + */ +goog.object.clone = function(obj) { + // We cannot use the prototype trick because a lot of methods depend on where + // the actual key is set. + + var res = {}; + for (var key in obj) { + res[key] = obj[key]; + } + return res; + // We could also use goog.mixin but I wanted this to be independent from that. +}; + + +/** + * Clones a value. The input may be an Object, Array, or basic type. Objects and + * arrays will be cloned recursively. + * + * WARNINGS: + * <code>goog.object.unsafeClone</code> does not detect reference loops. Objects + * that refer to themselves will cause infinite recursion. + * + * <code>goog.object.unsafeClone</code> is unaware of unique identifiers, and + * copies UIDs created by <code>getUid</code> into cloned results. + * + * @param {T} obj The value to clone. + * @return {T} A clone of the input value. + * @template T + */ +goog.object.unsafeClone = function(obj) { + var type = goog.typeOf(obj); + if (type == 'object' || type == 'array') { + if (goog.isFunction(obj.clone)) { + return obj.clone(); + } + var clone = type == 'array' ? [] : {}; + for (var key in obj) { + clone[key] = goog.object.unsafeClone(obj[key]); + } + return clone; + } + + return obj; +}; + + +/** + * Returns a new object in which all the keys and values are interchanged + * (keys become values and values become keys). If multiple keys map to the + * same value, the chosen transposed value is implementation-dependent. + * + * @param {Object} obj The object to transpose. + * @return {!Object} The transposed object. + */ +goog.object.transpose = function(obj) { + var transposed = {}; + for (var key in obj) { + transposed[obj[key]] = key; + } + return transposed; +}; + + +/** + * The names of the fields that are defined on Object.prototype. + * @type {Array<string>} + * @private + */ +goog.object.PROTOTYPE_FIELDS_ = [ + 'constructor', 'hasOwnProperty', 'isPrototypeOf', 'propertyIsEnumerable', + 'toLocaleString', 'toString', 'valueOf' +]; + + +/** + * Extends an object with another object. + * This operates 'in-place'; it does not create a new Object. + * + * Example: + * var o = {}; + * goog.object.extend(o, {a: 0, b: 1}); + * o; // {a: 0, b: 1} + * goog.object.extend(o, {b: 2, c: 3}); + * o; // {a: 0, b: 2, c: 3} + * + * @param {Object} target The object to modify. Existing properties will be + * overwritten if they are also present in one of the objects in + * {@code var_args}. + * @param {...Object} var_args The objects from which values will be copied. + */ +goog.object.extend = function(target, var_args) { + var key, source; + for (var i = 1; i < arguments.length; i++) { + source = arguments[i]; + for (key in source) { + target[key] = source[key]; + } + + // For IE the for-in-loop does not contain any properties that are not + // enumerable on the prototype object (for example isPrototypeOf from + // Object.prototype) and it will also not include 'replace' on objects that + // extend String and change 'replace' (not that it is common for anyone to + // extend anything except Object). + + for (var j = 0; j < goog.object.PROTOTYPE_FIELDS_.length; j++) { + key = goog.object.PROTOTYPE_FIELDS_[j]; + if (Object.prototype.hasOwnProperty.call(source, key)) { + target[key] = source[key]; + } + } + } +}; + + +/** + * Creates a new object built from the key-value pairs provided as arguments. + * @param {...*} var_args If only one argument is provided and it is an array + * then this is used as the arguments, otherwise even arguments are used as + * the property names and odd arguments are used as the property values. + * @return {!Object} The new object. + * @throws {Error} If there are uneven number of arguments or there is only one + * non array argument. + */ +goog.object.create = function(var_args) { + var argLength = arguments.length; + if (argLength == 1 && goog.isArray(arguments[0])) { + return goog.object.create.apply(null, arguments[0]); + } + + if (argLength % 2) { + throw Error('Uneven number of arguments'); + } + + var rv = {}; + for (var i = 0; i < argLength; i += 2) { + rv[arguments[i]] = arguments[i + 1]; + } + return rv; +}; + + +/** + * Creates a new object where the property names come from the arguments but + * the value is always set to true + * @param {...*} var_args If only one argument is provided and it is an array + * then this is used as the arguments, otherwise the arguments are used + * as the property names. + * @return {!Object} The new object. + */ +goog.object.createSet = function(var_args) { + var argLength = arguments.length; + if (argLength == 1 && goog.isArray(arguments[0])) { + return goog.object.createSet.apply(null, arguments[0]); + } + + var rv = {}; + for (var i = 0; i < argLength; i++) { + rv[arguments[i]] = true; + } + return rv; +}; + + +/** + * Creates an immutable view of the underlying object, if the browser + * supports immutable objects. + * + * In default mode, writes to this view will fail silently. In strict mode, + * they will throw an error. + * + * @param {!Object<K,V>} obj An object. + * @return {!Object<K,V>} An immutable view of that object, or the + * original object if this browser does not support immutables. + * @template K,V + */ +goog.object.createImmutableView = function(obj) { + var result = obj; + if (Object.isFrozen && !Object.isFrozen(obj)) { + result = Object.create(obj); + Object.freeze(result); + } + return result; +}; + + +/** + * @param {!Object} obj An object. + * @return {boolean} Whether this is an immutable view of the object. + */ +goog.object.isImmutableView = function(obj) { + return !!Object.isFrozen && Object.isFrozen(obj); +}; + + +/** + * Get all properties names on a given Object regardless of enumerability. + * + * <p> If the browser does not support {@code Object.getOwnPropertyNames} nor + * {@code Object.getPrototypeOf} then this is equivalent to using {@code + * goog.object.getKeys} + * + * @param {?Object} obj The object to get the properties of. + * @param {boolean=} opt_includeObjectPrototype Whether properties defined on + * {@code Object.prototype} should be included in the result. + * @param {boolean=} opt_includeFunctionPrototype Whether properties defined on + * {@code Function.prototype} should be included in the result. + * @return {!Array<string>} + * @public + */ +goog.object.getAllPropertyNames = function( + obj, opt_includeObjectPrototype, opt_includeFunctionPrototype) { + if (!obj) { + return []; + } + + // Naively use a for..in loop to get the property names if the browser doesn't + // support any other APIs for getting it. + if (!Object.getOwnPropertyNames || !Object.getPrototypeOf) { + return goog.object.getKeys(obj); + } + + var visitedSet = {}; + + // Traverse the prototype chain and add all properties to the visited set. + var proto = obj; + while (proto && + (proto !== Object.prototype || !!opt_includeObjectPrototype) && + (proto !== Function.prototype || !!opt_includeFunctionPrototype)) { + var names = Object.getOwnPropertyNames(proto); + for (var i = 0; i < names.length; i++) { + visitedSet[names[i]] = true; + } + proto = Object.getPrototypeOf(proto); + } + + return goog.object.getKeys(visitedSet); +}; |