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} ], "directives": [], "trailingComments": null }, "leadingComments": [ { "type": "CommentBlock", "value": "*\n * 创建一个事件派发器。\n * @param {IEventDispatcher} [target=null] - 指定派发器的代理目标对象。\n * @since 1.0.0\n ", "start": 2826, "end": 2938, "loc": { "start": { "line": 51, "column": 4 }, "end": { "line": 55, "column": 7 } } } ], "trailingComments": [ { "type": "CommentBlock", "value": "*\n * 注册一个事件侦听器。\n * \n * 如果浏览器支持 {@link Symbol} 类型，则事件类型可以使用 {@link Symbol} 对象，这样可以防止\n * 你的事件被其他人意外的移除。\n * \n * 事件侦听器可以注册到派发事件的任何一个阶段，**捕获阶段**和**冒泡阶段**的侦听器是相互独立的。\n * 因此使用不同的 `useCapture` 值将注册不同的侦听器。同样移除的时候，也需要指定不同的 `useCapture` 值。 \n * \n * 事件处理函数默认的作用域为派发器（`EventDispatcher`）对象或者其代理的对象，通过设置 `options.scope` \n * 可以为事件处理函数指定作用域。但是如果注册的是一个实现了 {@link IEventListener} 接口的对象，则直接\n * 调用其 `handleEvent()` 方法处理事件，并且作用域始终指向该 `IEventListener` 对象。\n * \n * 通过指定 `options.once` 选项，可以指定侦听器在执行后，是否自动从列表中移除。\n * \n * 优先级高（`options.priority`）的侦听器会在派发事件时优先调用。相同优先级的情况会按照注册的先后\n * 顺序调用侦听器。分别使用不同的优先级注册相同的侦听器时，以最后一次注册的侦听器为准。\n * \n 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10468, "loc": { "start": { "line": 249, "column": 12 }, "end": { "line": 251, "column": 15 } } } ] } ], "directives": [] } } ], "directives": [], "trailingComments": null }, "leadingComments": [ { "type": "CommentBlock", "value": "*\n * 移除一个事件侦听器。\n * \n * 第三个参数 `useCapture` 可以是一个 {@link Boolean} 类型的值，或者是一个 {@link IEventListenerOptions} 类型的值。\n * \n * 只有完全相同（使用 === 对比）的侦听器才会被移除。因此使用 `useCapture=false` 并不会移除**捕获阶段**的侦听器。\n * 同理 `useCapture=true` 也不会移除**冒泡阶段**的侦听器。\n * \n * @param {String|Symbol} type - 事件类型。\n * @param {Function|IEventListener} handler - 指定要移除的事件处理函数或者事件侦听器。\n * @param {Boolean|IEventListenerOptions} [useCapture=false] - 指定是移除捕获阶段(`true`)还是冒泡阶段(`false`)的事件侦听器。\n * @example\n * /// 使用不用类型的 useCapture 值移除侦听器。\n * dispatcher.removeEventListener(type, handler, false);\n * dispatcher.removeEventListener(type, handler, { \"useCapture\": true });\n * \n * /// 分别移除不用阶段的侦听器。\n * const dispatcher = new EventDispatcher();\n * \n * function captureHandler( evt ) {\n * 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) => {\n * console.log(1);\n * }, { \"priority\": 1 });\n * \n * /// 相同的侦听器使用不用的优先级多次注册，以最后一次注册的优先级为准。\n * const handler = ( evt ) => {};\n * dispatcher.addEventListener(\"custom\", handler, { \"priority\": 1 });\n * dispatcher.addEventListener(\"custom\", handler, { \"priority\": 2 }); // 只会注册一个优先级为 2 的侦听器。\n * @see {@link IEventListenerOptions}\n * @since 1.0.0\n ", "start": 4210, "end": 6235, "loc": { "start": { "line": 86, "column": 4 }, "end": { "line": 139, "column": 7 } } }, { "type": "CommentBlock", "value": "*\n * 在事件派发过程中修改侦听器列表会导致派发顺序错误，因此这里需要拷贝侦听器列表的副本。\n * \n * @example\n * const dispatcher = new EventDispatcher();\n * dispatcher.addEventListener(\"custom\", () => { // 如果不锁定侦听器列表的化，这里将产生一个死循环。\n * console.log(1}; \n * dispatcher.addEventListener(\"custom\", () => {}, { \"priority\": 1 });\n * });\n * dispatcher.dispatchEvent(new Event(\"custom\", false, false));\n ", "start": 6506, "end": 6947, "loc": { "start": { "line": 147, "column": 8 }, "end": { "line": 157, "column": 11 } } }, { "type": "CommentLine", "value": "/ 移除重复的事件侦听器。", "start": 7151, "end": 7166, "loc": { "start": { "line": 163, "column": 8 }, "end": { "line": 163, "column": 23 } } }, { "type": "CommentLine", "value": "/ 没有为 type 类型的事件注册侦听器。", "start": 7262, "end": 7286, "loc": { "start": { "line": 166, "column": 8 }, "end": { "line": 166, "column": 32 } } }, { "type": "CommentLine", "value": "/ 为 type 类型已经注册的侦听器列表。", "start": 7435, "end": 7459, "loc": { "start": { "line": 172, "column": 8 }, "end": { "line": 172, "column": 32 } } }, { "type": "CommentBlock", "value": "*\n * 一般情况下，我们注册的侦听器的优先级都是默认的 0。因此这里可以先对比插入的侦听器的优先级是否为最低的优先级。\n * 如果是则直接放入列表末尾。从而减少为插入侦听器而遍历列表的次数。\n ", "start": 7529, "end": 7655, "loc": { "start": { "line": 175, "column": 8 }, "end": { "line": 178, "column": 11 } } }, { "type": "CommentBlock", "value": "*\n * 按照侦听器注册的顺序以及侦听器优先级的大小插入列表。\n * - 1, 优先越高的侦听器放到列表的前面。\n * - 2, 相同优先级的情况，先注册的侦听器放到列表的前面。\n ", "start": 7824, "end": 7951, "loc": { "start": { "line": 184, "column": 8 }, "end": { "line": 188, "column": 11 } } }, { "type": "CommentBlock", "value": "*\n * 移除一个事件侦听器。\n * \n * 第三个参数 `useCapture` 可以是一个 {@link Boolean} 类型的值，或者是一个 {@link IEventListenerOptions} 类型的值。\n * \n * 只有完全相同（使用 === 对比）的侦听器才会被移除。因此使用 `useCapture=false` 并不会移除**捕获阶段**的侦听器。\n * 同理 `useCapture=true` 也不会移除**冒泡阶段**的侦听器。\n * \n * @param {String|Symbol} type - 事件类型。\n * @param {Function|IEventListener} handler - 指定要移除的事件处理函数或者事件侦听器。\n * @param {Boolean|IEventListenerOptions} [useCapture=false] - 指定是移除捕获阶段(`true`)还是冒泡阶段(`false`)的事件侦听器。\n * @example\n * /// 使用不用类型的 useCapture 值移除侦听器。\n * dispatcher.removeEventListener(type, handler, false);\n * dispatcher.removeEventListener(type, handler, { \"useCapture\": true });\n * \n * /// 分别移除不用阶段的侦听器。\n * const dispatcher = new EventDispatcher();\n * \n * function captureHandler( evt ) {\n * console.log(\"capture\");\n * }\n * \n * dispatcher.addEventListener(\"custom\", captureHandler, true);\n * dispatcher.removeEventListener(\"custom\", captureHandler, false); // 这里并不会移除 captureHandler 侦听器。\n * dispatcher.hasEventListener(\"custom\"); // true\n * dispatcher.removeEventListener(\"custom\", captureHandler, true); // 这里才会移除 captureHandler 侦听器。\n * dispatcher.hasEventListener(\"custom\"); // false\n * @since 1.0.0\n ", "start": 8183, "end": 9452, "loc": { "start": { "line": 195, "column": 4 }, "end": { "line": 224, "column": 7 } } }, { "type": "CommentBlock", "value": "*\n * 如果 `useCapture` 是一个 {@link IEventListenerOptions} 对象，则获取 `IEventListenerOptions.useCapture` 的值。\n ", "start": 9609, "end": 9731, "loc": { "start": { "line": 230, "column": 8 }, "end": { "line": 232, "column": 11 } } }, { "type": "CommentBlock", "value": "* @type {IEventListenerOptions} ", "start": 9792, "end": 9828, "loc": { "start": { "line": 234, "column": 12 }, "end": { "line": 234, "column": 48 } } }, { "type": "CommentBlock", "value": "*\n * 在事件派发过程中修改侦听器列表会导致派发顺序错误，因此这里需要拷贝侦听器列表的副本。\n * @see {@link EventDispatcher#addEventListener}\n ", "start": 9983, "end": 10109, "loc": { "start": { "line": 239, "column": 8 }, "end": { "line": 242, "column": 11 } } }, { "type": "CommentBlock", "value": "*\n * 只有完全相同（使用 === 对比）的侦听器才会被移除。\n ", "start": 10406, "end": 10468, "loc": { "start": { "line": 249, "column": 12 }, "end": { "line": 251, "column": 15 } } }, { "type": "CommentBlock", "value": "*\n * 检查是否注册了指定类型的事件侦听器。\n * @param {String|Symbol} type - 事件类型。\n * @example\n * const dispatcher = new EventDispatcher();\n * dispatcher.addEventListener(\"custom\", ( evt ) => {}, false);\n * \n * console.log(dispatcher.hasEventListener(\"custom\")); // true\n * console.log(dispatcher.hasEventListener(\"notexists\")); // false\n * @returns {Boolean} - 如果存在指定类型的侦听器则返回 `true`，否则返回 `false`。\n * @since 1.0.0\n ", "start": 10663, "end": 11107, "loc": { "start": { "line": 259, "column": 4 }, "end": { "line": 270, "column": 7 } } }, { "type": "CommentBlock", "value": "*\n * 派发一个事件对象到目标对象的事件流中。\n * @param {Event|String|Symbol} event - 指定派发的事件对象。\n * @example\n * const dispatcher = new EventDispatcher();\n * \n * dispatcher.dispatchEvent(new Event(\"custom\", false, false)); // 派发一个不冒泡的事件。\n * dispatcher.dispatchEvent(new Event(\"custom\", true, false)); // 派发一个参与冒泡的事件。\n * @returns {Boolean} - 如果事件传递到了当前目标对象，并且没有被取消默认行为。则返回 `true`，否则返回 `false`。\n * @since 1.0.0\n ", "start": 11247, "end": 11679, "loc": { "start": { "line": 275, "column": 4 }, "end": { "line": 285, "column": 7 } } }, { "type": "CommentLine", "value": "/ 该事件对象已经被派发过一次！", "start": 11844, "end": 11862, "loc": { "start": { "line": 291, "column": 8 }, "end": { "line": 291, "column": 26 } } }, { "type": "CommentLine", "value": " 设置事件目标对象。", "start": 12047, "end": 12059, "loc": { "start": { "line": 296, "column": 48 }, "end": { "line": 296, "column": 60 } } }, { "type": "CommentBlock", "value": "*\n * 满足以下条件时，直接调度事件至目标阶段：\n * \n * 1) 事件不参与冒泡行为。\n * 2) 目标对象没有加入显示对象列表。\n ", "start": 12077, "end": 12191, "loc": { "start": { "line": 298, "column": 8 }, "end": { "line": 303, "column": 11 } } }, { "type": "CommentBlock", "value": "< 防止根级别对象循环引用 >", "start": 12257, "end": 12276, "loc": { "start": { "line": 305, "column": 12 }, "end": { "line": 305, "column": 31 } } }, { "type": "CommentLine", "value": " 事件派发完成后，删除事件对当前目标的引用。", "start": 12647, "end": 12671, "loc": { "start": { "line": 314, "column": 41 }, "end": { "line": 314, "column": 65 } } }, { "type": "CommentBlock", "value": "*\n * 查找事件传递路径。\n ", "start": 12743, "end": 12779, "loc": { "start": { "line": 318, "column": 8 }, "end": { "line": 320, "column": 11 } } }, { "type": "CommentBlock", "value": "*\n * 捕获阶段。\n ", "start": 12968, "end": 13000, "loc": { "start": { "line": 326, "column": 8 }, "end": { "line": 328, "column": 11 } } }, { "type": "CommentLine", "value": " 事件在捕获阶段被中断。", "start": 13405, "end": 13419, "loc": { "start": { "line": 339, "column": 40 }, "end": { "line": 339, "column": 54 } } }, { "type": "CommentBlock", "value": "*\n * 目标阶段。\n ", "start": 13514, "end": 13546, "loc": { "start": { "line": 344, "column": 8 }, "end": { "line": 346, "column": 11 } } }, { "type": "CommentBlock", "value": "*\n * 冒泡阶段。\n ", "start": 13936, "end": 13968, "loc": { "start": { "line": 359, "column": 8 }, "end": { "line": 361, "column": 11 } } }, { "type": "CommentBlock", "value": "*\n * 执行所有的侦听器。\n * @param {Event} event - 指定派发的事件对象。\n ", "start": 14419, "end": 14488, "loc": { "start": { "line": 376, "column": 4 }, "end": { "line": 379, "column": 7 } } }, { "type": "CommentBlock", "value": "*\n * 锁定侦听器列表。\n ", "start": 14624, "end": 14659, "loc": { "start": { "line": 385, "column": 8 }, "end": { "line": 387, "column": 11 } } }, { "type": "CommentBlock", "value": "*\n * 执行侦听器\n ", "start": 14727, "end": 14759, "loc": { "start": { "line": 390, "column": 8 }, "end": { "line": 392, "column": 11 } } }, { "type": "CommentBlock", "value": "* @type {EventListener} ", "start": 14903, "end": 14931, "loc": { "start": { "line": 394, "column": 12 }, "end": { "line": 394, "column": 40 } } }, { "type": "CommentBlock", "value": "*\n * 自动移除一次性的侦听器。\n ", "start": 15605, "end": 15652, "loc": { "start": { "line": 413, "column": 12 }, "end": { "line": 415, "column": 15 } } }, { "type": "CommentBlock", "value": "*\n * 解锁侦听器列表。\n ", "start": 15838, "end": 15873, "loc": { "start": { "line": 421, "column": 8 }, "end": { "line": 423, "column": 11 } } } ], "tokens": [ { "type": "CommentLine", "value": "/ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~", "start": 0, "end": 78, "loc": { "start": { "line": 1, "column": 0 }, "end": { "line": 1, "column": 78 } } }, { "type": "CommentLine", "value": "/ @Copyright ~2018 ☜Samlv9☞ and other contributors", "start": 79, "end": 131, "loc": { "start": { "line": 2, "column": 0 }, "end": { "line": 2, "column": 52 } } }, { "type": "CommentLine", "value": "/ @MIT-LICENSE | 1.0.0 | https://api.guless.com/", "start": 132, "end": 182, "loc": { "start": { "line": 3, "column": 0 }, "end": { "line": 3, "column": 50 } } }, { "type": 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"start": { "line": 9, "column": 0 }, "end": { "line": 9, "column": 71 } } }, { "type": "CommentLine", "value": "/ | (__ \\_| | |__) | | (____) | }| │　　　　　ヽ　　 /　　〉", "start": 575, "end": 645, "loc": { "start": { "line": 10, "column": 0 }, "end": { "line": 10, "column": 70 } } }, { "type": "CommentLine", "value": "/ '.___`-. | __ / '_.____. | }| Y　　　　　`　 /　　/", "start": 646, "end": 716, "loc": { "start": { "line": 11, "column": 0 }, "end": { "line": 11, "column": 70 } } }, { "type": "CommentLine", "value": "/ |`\\____) | _| | \\ \\_ | \\____| | }| ｲ●　､　●　　⊂⊃〈　　/", "start": 717, "end": 786, "loc": { "start": { "line": 12, "column": 0 }, "end": { "line": 12, "column": 69 } } }, { "type": "CommentLine", "value": "/ |_______.' |____| |___| \\______,' }| ()　 v　　　　|　＼〈", "start": 787, "end": 855, "loc": { "start": { "line": 13, "column": 0 }, "end": { "line": 13, "column": 68 } } }, { "type": "CommentLine", "value": "/ |=========================================\\| 　>ｰ ､_　 ィ　 │ ／／", "start": 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"binop": null }, "start": 4193, "end": 4194, "loc": { "start": { "line": 83, "column": 8 }, "end": { "line": 83, "column": 9 } } }, { "type": { "label": "}", "beforeExpr": false, "startsExpr": false, "rightAssociative": false, "isLoop": false, "isAssign": false, "prefix": false, "postfix": false, "binop": null }, "start": 4199, "end": 4200, "loc": { "start": { "line": 84, "column": 4 }, "end": { "line": 84, "column": 5 } } }, { "type": "CommentBlock", "value": "*\n * 注册一个事件侦听器。\n * \n * 如果浏览器支持 {@link Symbol} 类型，则事件类型可以使用 {@link Symbol} 对象，这样可以防止\n * 你的事件被其他人意外的移除。\n * \n * 事件侦听器可以注册到派发事件的任何一个阶段，**捕获阶段**和**冒泡阶段**的侦听器是相互独立的。\n * 因此使用不同的 `useCapture` 值将注册不同的侦听器。同样移除的时候，也需要指定不同的 `useCapture` 值。 \n * \n * 事件处理函数默认的作用域为派发器（`EventDispatcher`）对象或者其代理的对象，通过设置 `options.scope` \n * 可以为事件处理函数指定作用域。但是如果注册的是一个实现了 {@link IEventListener} 接口的对象，则直接\n * 调用其 `handleEvent()` 方法处理事件，并且作用域始终指向该 `IEventListener` 对象。\n * \n * 通过指定 `options.once` 选项，可以指定侦听器在执行后，是否自动从列表中移除。\n * \n * 优先级高（`options.priority`）的侦听器会在派发事件时优先调用。相同优先级的情况会按照注册的先后\n * 顺序调用侦听器。分别使用不同的优先级注册相同的侦听器时，以最后一次注册的侦听器为准。\n * \n * @param {String|Symbol} type - 事件类型。\n * @param {Function|IEventListener} handler - 指定事件处理函数或者是一个事件侦听器。\n * @param {Boolean|IEventListenerOptions} [options=false] - 指定侦听器配置选项。\n * @example\n * const dispatcher = new EventDispatcher();\n * \n * /// 在冒泡阶段注册侦听器。\n * dispatcher.addEventListener(\"custom\", ( evt ) => {});\n * dispatcher.addEventListener(\"custom\", ( evt ) => {}, false);\n * \n * /// 在捕获阶段注册侦听器。\n * dispatcher.addEventListener(\"custom\", ( evt ) => {}, true);\n * \n * /// 指定事件处理函数的作用域。\n * const target = {};\n * dispatcher.addEventListener(\"custom\", ( evt ) => {\n * console.log(target === this); // true\n * }, { \"scope\": target });\n * \n * /// 注册一次性的侦听器。\n * dispatcher.addEventListener(\"custom\", ( evt ) => {\n * /// 该函数执行后，将自动从列表中移除。\n * }, { \"once\": true });\n * \n * /// 尽管该侦听器后注册的，但是因为具有较高的优先级，所以会先被调用。\n * dispatcher.addEventListener(\"custom\", ( evt ) => {\n * console.log(1);\n * }, { \"priority\": 1 });\n * \n * /// 相同的侦听器使用不用的优先级多次注册，以最后一次注册的优先级为准。\n * const handler = ( evt ) => {};\n * dispatcher.addEventListener(\"custom\", handler, { \"priority\": 1 });\n * dispatcher.addEventListener(\"custom\", handler, { \"priority\": 2 }); // 只会注册一个优先级为 2 的侦听器。\n * @see {@link IEventListenerOptions}\n * @since 1.0.0\n ", "start": 4210, "end": 6235, "loc": { "start": { "line": 86, "column": 4 }, "end": { "line": 139, "column": 7 } } }, { "type": { "label": "name", "beforeExpr": false, "startsExpr": true, "rightAssociative": false, "isLoop": false, "isAssign": false, "prefix": false, "postfix": false, "binop": null }, "value": "addEventListener", "start": 6240, "end": 6256, "loc": { "start": { "line": 140, "column": 4 }, "end": { "line": 140, "column": 20 } } }, { "type": { "label": "(", "beforeExpr": true, "startsExpr": true, "rightAssociative": false, "isLoop": false, "isAssign": false, "prefix": false, "postfix": false, "binop": null }, 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"loc": { "start": { "line": 140, "column": 28 }, "end": { "line": 140, "column": 35 } } }, { "type": { "label": ",", "beforeExpr": true, "startsExpr": false, "rightAssociative": false, "isLoop": false, "isAssign": false, "prefix": false, "postfix": false, "binop": null, "updateContext": null }, "start": 6271, "end": 6272, "loc": { "start": { "line": 140, "column": 35 }, "end": { "line": 140, "column": 36 } } }, { "type": { "label": "name", "beforeExpr": false, "startsExpr": true, "rightAssociative": false, "isLoop": false, "isAssign": false, "prefix": false, "postfix": false, "binop": null }, "value": "options", "start": 6273, "end": 6280, "loc": { "start": { "line": 140, "column": 37 }, "end": { "line": 140, "column": 44 } } }, { "type": { "label": "=", "beforeExpr": true, "startsExpr": false, "rightAssociative": false, "isLoop": false, "isAssign": true, "prefix": false, "postfix": false, "binop": null, "updateContext": null }, "value": "=", "start": 6281, "end": 6282, "loc": { "start": { "line": 140, "column": 45 }, "end": { "line": 140, "column": 46 } } }, { "type": { "label": "false", "keyword": "false", "beforeExpr": false, "startsExpr": true, "rightAssociative": false, "isLoop": false, "isAssign": false, "prefix": false, "postfix": false, "binop": null, "updateContext": null }, "value": "false", "start": 6283, "end": 6288, "loc": { "start": { "line": 140, "column": 47 }, "end": { "line": 140, "column": 52 } } }, { "type": { "label": ")", "beforeExpr": false, "startsExpr": false, "rightAssociative": false, "isLoop": false, "isAssign": false, "prefix": false, "postfix": false, "binop": null }, "start": 6289, "end": 6290, "loc": { "start": { "line": 140, "column": 53 }, "end": { "line": 140, "column": 54 } } }, { "type": { "label": "{", "beforeExpr": true, "startsExpr": true, "rightAssociative": false, "isLoop": false, "isAssign": false, "prefix": false, "postfix": false, "binop": null }, "start": 6291, "end": 6292, "loc": { "start": { "line": 140, "column": 55 }, "end": { "line": 140, "column": 56 } } }, { "type": { "label": "if", "keyword": "if", "beforeExpr": false, "startsExpr": false, "rightAssociative": false, "isLoop": false, "isAssign": false, "prefix": false, "postfix": false, "binop": null, "updateContext": null }, "value": "if", "start": 6301, "end": 6303, "loc": { "start": { "line": 141, "column": 8 }, "end": { "line": 141, "column": 10 } } }, { "type": { "label": "(", "beforeExpr": true, "startsExpr": true, "rightAssociative": false, "isLoop": false, "isAssign": false, "prefix": false, "postfix": false, "binop": null }, "start": 6304, "end": 6305, "loc": { "start": { "line": 141, "column": 11 }, "end": { "line": 141, "column": 12 } } }, { "type": { "label": "prefix", "beforeExpr": true, "startsExpr": true, "rightAssociative": false, "isLoop": false, "isAssign": false, "prefix": true, "postfix": false, "binop": null, "updateContext": null }, "value": "!", "start": 6306, "end": 6307, "loc": { "start": { "line": 141, "column": 13 }, "end": { "line": 141, "column": 14 } } }, { "type": { "label": "name", "beforeExpr": false, "startsExpr": true, "rightAssociative": false, "isLoop": false, "isAssign": false, "prefix": false, "postfix": false, "binop": null }, "value": "handler", "start": 6307, "end": 6314, "loc": { "start": { "line": 141, "column": 14 }, "end": { "line": 141, "column": 21 } } }, { "type": { "label": ")", "beforeExpr": false, "startsExpr": false, "rightAssociative": false, "isLoop": false, "isAssign": false, "prefix": false, "postfix": false, "binop": null }, "start": 6315, "end": 6316, "loc": { "start": { "line": 141, "column": 22 }, "end": { "line": 141, "column": 23 } } }, { "type": { "label": "{", "beforeExpr": true, "startsExpr": true, "rightAssociative": false, "isLoop": false, "isAssign": false, "prefix": false, "postfix": false, "binop": null }, "start": 6317, "end": 6318, "loc": { "start": { "line": 141, "column": 24 }, "end": { "line": 141, "column": 25 } } }, { "type": { "label": "throw", "keyword": "throw", "beforeExpr": true, "startsExpr": false, "rightAssociative": false, "isLoop": false, "isAssign": false, "prefix": false, "postfix": false, "binop": null, "updateContext": null }, "value": "throw", "start": 6331, "end": 6336, "loc": { "start": { "line": 142, "column": 12 }, "end": { "line": 142, "column": 17 } } }, { "type": { "label": "new", "keyword": "new", "beforeExpr": true, "startsExpr": true, "rightAssociative": false, "isLoop": false, "isAssign": false, "prefix": false, "postfix": false, "binop": null, "updateContext": null }, "value": "new", "start": 6337, "end": 6340, "loc": { "start": { "line": 142, "column": 18 }, "end": { "line": 142, "column": 21 } } }, { "type": { "label": "name", "beforeExpr": false, "startsExpr": true, "rightAssociative": false, "isLoop": false, "isAssign": false, "prefix": false, "postfix": false, "binop": null }, "value": "TypeError", "start": 6341, "end": 6350, "loc": { "start": { "line": 142, "column": 22 }, "end": { "line": 142, "column": 31 } } }, { "type": { "label": "(", "beforeExpr": true, "startsExpr": true, "rightAssociative": false, "isLoop": false, "isAssign": false, "prefix": false, "postfix": false, "binop": null }, "start": 6350, "end": 6351, "loc": { "start": { "line": 142, "column": 31 }, "end": { "line": 142, "column": 32 } } }, { "type": { "label": "string", "beforeExpr": false, "startsExpr": true, "rightAssociative": false, "isLoop": false, "isAssign": false, "prefix": false, "postfix": false, "binop": null, "updateContext": null }, "value": "handler 必须为事件处理函数(function)或者是事件侦听器(IEventListener)。", "start": 6351, "end": 6405, "loc": { "start": { "line": 142, "column": 32 }, "end": { "line": 142, "column": 86 } } }, { "type": { "label": ")", "beforeExpr": false, "startsExpr": false, "rightAssociative": false, "isLoop": false, "isAssign": false, "prefix": false, "postfix": false, "binop": null }, "start": 6405, "end": 6406, "loc": { "start": { "line": 142, "column": 86 }, "end": { "line": 142, "column": 87 } } }, { "type": { "label": ";", "beforeExpr": true, "startsExpr": false, "rightAssociative": false, "isLoop": false, "isAssign": false, "prefix": false, "postfix": false, "binop": null, "updateContext": null }, "start": 6406, "end": 6407, "loc": { "start": { "line": 142, "column": 87 }, "end": { "line": 142, "column": 88 } } }, { "type": { "label": "}", "beforeExpr": false, "startsExpr": false, "rightAssociative": false, "isLoop": false, "isAssign": false, "prefix": false, "postfix": false, "binop": null }, "start": 6416, "end": 6417, "loc": { "start": { "line": 143, "column": 8 }, "end": { "line": 143, "column": 9 } } }, { "type": { "label": "const", "keyword": "const", "beforeExpr": false, "startsExpr": false, "rightAssociative": false, "isLoop": false, "isAssign": false, "prefix": false, "postfix": false, "binop": null, "updateContext": null }, "value": "const", "start": 6435, "end": 6440, "loc": { "start": { "line": 145, "column": 8 }, "end": { "line": 145, "column": 13 } } }, { "type": { "label": "name", "beforeExpr": false, "startsExpr": true, "rightAssociative": false, "isLoop": false, "isAssign": false, "prefix": false, "postfix": false, "binop": null }, "value": "listener", "start": 6441, "end": 6449, "loc": { "start": { "line": 145, "column": 14 }, "end": { "line": 145, "column": 22 } } }, { "type": { "label": "=", "beforeExpr": true, "startsExpr": false, "rightAssociative": false, "isLoop": false, "isAssign": true, "prefix": false, "postfix": false, "binop": null, "updateContext": null }, "value": "=", "start": 6450, "end": 6451, "loc": { "start": { "line": 145, "column": 23 }, "end": { "line": 145, "column": 24 } } }, { "type": { "label": "new", "keyword": "new", "beforeExpr": true, "startsExpr": true, "rightAssociative": false, "isLoop": false, "isAssign": false, "prefix": false, "postfix": false, "binop": null, "updateContext": null }, "value": "new", "start": 6452, "end": 6455, "loc": { "start": { "line": 145, "column": 25 }, "end": { "line": 145, "column": 28 } } }, { "type": { "label": "name", "beforeExpr": false, "startsExpr": true, "rightAssociative": false, "isLoop": false, "isAssign": false, "prefix": false, "postfix": false, "binop": null }, "value": "EventListener", "start": 6456, "end": 6469, "loc": { "start": { "line": 145, "column": 29 }, "end": { "line": 145, "column": 42 } } }, { "type": { "label": "(", "beforeExpr": true, "startsExpr": true, "rightAssociative": false, "isLoop": false, "isAssign": false, "prefix": false, "postfix": false, "binop": null }, "start": 6469, "end": 6470, "loc": { "start": { "line": 145, "column": 42 }, "end": { "line": 145, "column": 43 } } }, { "type": { "label": "name", "beforeExpr": false, "startsExpr": true, "rightAssociative": false, "isLoop": false, "isAssign": false, "prefix": false, "postfix": false, "binop": null }, "value": "handler", "start": 6470, "end": 6477, "loc": { "start": { "line": 145, "column": 43 }, "end": { "line": 145, "column": 50 } } }, { "type": { "label": ",", "beforeExpr": true, "startsExpr": false, "rightAssociative": false, "isLoop": false, "isAssign": false, "prefix": false, "postfix": false, "binop": null, "updateContext": null }, "start": 6477, "end": 6478, "loc": { "start": { "line": 145, "column": 50 }, "end": { "line": 145, "column": 51 } } }, { "type": { "label": "name", "beforeExpr": false, "startsExpr": true, "rightAssociative": false, "isLoop": false, "isAssign": false, "prefix": false, "postfix": false, "binop": null }, "value": "options", "start": 6479, "end": 6486, "loc": { "start": { "line": 145, "column": 52 }, "end": { "line": 145, "column": 59 } } }, { "type": { "label": ")", "beforeExpr": false, "startsExpr": false, "rightAssociative": false, "isLoop": false, "isAssign": false, "prefix": false, "postfix": false, "binop": null }, "start": 6486, "end": 6487, "loc": { "start": { "line": 145, "column": 59 }, "end": { "line": 145, "column": 60 } } }, { "type": { "label": ";", "beforeExpr": true, "startsExpr": false, "rightAssociative": false, "isLoop": false, "isAssign": false, "prefix": false, "postfix": false, "binop": null, "updateContext": null }, "start": 6487, "end": 6488, "loc": { "start": { "line": 145, "column": 60 }, "end": { "line": 145, "column": 61 } } }, { "type": "CommentBlock", "value": "*\n * 在事件派发过程中修改侦听器列表会导致派发顺序错误，因此这里需要拷贝侦听器列表的副本。\n * \n * @example\n * const dispatcher = new EventDispatcher();\n * dispatcher.addEventListener(\"custom\", () => { // 如果不锁定侦听器列表的化，这里将产生一个死循环。\n * console.log(1}; \n * dispatcher.addEventListener(\"custom\", () => {}, { \"priority\": 1 });\n * });\n * dispatcher.dispatchEvent(new Event(\"custom\", false, false));\n ", "start": 6506, "end": 6947, "loc": { "start": { "line": 147, "column": 8 }, "end": { "line": 157, "column": 11 } } }, { "type": { "label": "if", "keyword": "if", "beforeExpr": false, "startsExpr": false, "rightAssociative": false, "isLoop": false, "isAssign": false, "prefix": false, "postfix": 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