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data-v-b2cd6471><!--[--><p class="text" data-v-b2cd6471>工具函数</p><!--]--></a><!----></div><!----></div><!--]--></li></ul></section></div><div class="no-transition group" data-v-a3c028c0><section class="VPSidebarItem level-0" data-v-a3c028c0 data-v-b2cd6471><div class="item" role="button" tabindex="0" data-v-b2cd6471><div class="indicator" data-v-b2cd6471></div><h2 class="text" data-v-b2cd6471>@tmagic/data-source</h2><!----></div><ul class="items" data-v-b2cd6471><li data-v-b2cd6471><!--[--><div class="VPSidebarItem level-1 is-link" data-v-b2cd6471><div class="item" data-v-b2cd6471><div class="indicator" data-v-b2cd6471></div><a class="VPLink link link" href="/tmagic-editor/docs/runtime-api/data-source/dataSourceManager.html" data-v-b2cd6471><!--[--><p class="text" data-v-b2cd6471>DataSourceManager</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b2cd6471><div class="item" data-v-b2cd6471><div class="indicator" data-v-b2cd6471></div><a 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class="indicator" data-v-b2cd6471></div><a class="VPLink link link" href="/tmagic-editor/docs/runtime-api/data-source/utils.html" data-v-b2cd6471><!--[--><p class="text" data-v-b2cd6471>工具函数</p><!--]--></a><!----></div><!----></div><!--]--></li></ul></section></div><!--]--><!--[--><!--]--></nav></aside><div class="VPContent has-sidebar" id="VPContent" data-v-60a4fda8 data-v-5cafe042><div class="VPDoc has-sidebar has-aside" data-v-5cafe042 data-v-ecefb870><!--[--><!--]--><div class="container" data-v-ecefb870><div class="aside" data-v-ecefb870><div class="aside-curtain" data-v-ecefb870></div><div class="aside-container" data-v-ecefb870><div class="aside-content" data-v-ecefb870><div class="VPDocAside" data-v-ecefb870 data-v-ccaf1b72><!--[--><!--]--><!--[--><!--]--><nav aria-labelledby="doc-outline-aria-label" class="VPDocAsideOutline" data-v-ccaf1b72 data-v-2b1043b8><div class="content" data-v-2b1043b8><div class="outline-marker" data-v-2b1043b8></div><div aria-level="2" class="outline-title" id="doc-outline-aria-label" role="heading" data-v-2b1043b8>On this page</div><ul class="VPDocOutlineItem root" data-v-2b1043b8 data-v-1b6389b6><!--[--><!--]--></ul></div></nav><!--[--><!--]--><div class="spacer" data-v-ccaf1b72></div><!--[--><!--]--><!----><!--[--><!--]--><!--[--><!--]--></div></div></div></div><div class="content" data-v-ecefb870><div class="content-container" data-v-ecefb870><!--[--><!--]--><main class="main" data-v-ecefb870><div style="position:relative;" class="vp-doc _tmagic-editor_docs_runtime-api_core_node" data-v-ecefb870><div><h1 id="node" tabindex="-1">Node <a class="header-anchor" href="#node" aria-label="Permalink to “Node”"></a></h1><p><code>Node</code> 是 <code>@tmagic/core</code> 的节点基类，继承自 <code>EventEmitter</code>，表示 DSL 中的一个节点。</p><h2 id="构造函数" tabindex="-1">构造函数 <a class="header-anchor" href="#构造函数" aria-label="Permalink to “构造函数”"></a></h2><div class="language-typescript"><button title="Copy code" data-copied="Copied" class="copy"></button><span class="lang">typescript</span><pre class="shiki shiki-themes github-light github-dark" style="--shiki-light:#24292e;--shiki-dark:#e1e4e8;--shiki-light-bg:#fff;--shiki-dark-bg:#24292e;" tabindex="0" dir="ltr"><code><span class="line"><span style="--shiki-light:#c62739;--shiki-dark:#F97583;">new</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> Node</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(options: NodeOptions)</span></span></code></pre></div><h3 id="nodeoptions" tabindex="-1">NodeOptions <a class="header-anchor" href="#nodeoptions" aria-label="Permalink to “NodeOptions”"></a></h3><table tabindex="0"><thead><tr><th>参数</th><th>类型</th><th>说明</th></tr></thead><tbody><tr><td><code>config</code></td><td><code>MNode</code></td><td>节点配置</td></tr><tr><td><code>parent</code></td><td><code>Node</code></td><td>父节点（可选）</td></tr><tr><td><code>page</code></td><td><code>Page</code></td><td>所属页面（可选）</td></tr><tr><td><code>app</code></td><td><code>App</code></td><td>应用实例</td></tr></tbody></table><h2 id="属性" tabindex="-1">属性 <a class="header-anchor" href="#属性" aria-label="Permalink to “属性”"></a></h2><table tabindex="0"><thead><tr><th>属性</th><th>类型</th><th>说明</th></tr></thead><tbody><tr><td><code>data</code></td><td><code>MNode</code></td><td>节点配置数据</td></tr><tr><td><code>style</code></td><td><code>object</code></td><td>节点样式</td></tr><tr><td><code>events</code></td><td><code>EventConfig[]</code></td><td>事件配置</td></tr><tr><td><code>instance</code></td><td><code>any</code></td><td>组件实例</td></tr><tr><td><code>page</code></td><td><code>Page | undefined</code></td><td>所属页面</td></tr><tr><td><code>parent</code></td><td><code>Node | undefined</code></td><td>父节点</td></tr><tr><td><code>app</code></td><td><code>App</code></td><td>应用实例</td></tr><tr><td><code>store</code></td><td><code>Store</code></td><td>节点存储</td></tr><tr><td><code>eventKeys</code></td><td><code>Map<string, symbol></code></td><td>事件键映射</td></tr></tbody></table><h2 id="实例方法" tabindex="-1">实例方法 <a class="header-anchor" href="#实例方法" aria-label="Permalink to “实例方法”"></a></h2><h3 id="setdata" tabindex="-1">setData <a class="header-anchor" href="#setdata" aria-label="Permalink to “setData”"></a></h3><ul><li><p><strong>参数：</strong></p><ul><li><code>{MNode} data</code> 节点数据</li></ul></li><li><p><strong>返回：</strong></p><ul><li><code>{void}</code></li></ul></li><li><p><strong>详情：</strong></p><p>设置节点数据，会更新 <code>data</code>、<code>style</code> 和 <code>events</code> 属性。</p></li><li><p><strong>示例：</strong></p></li></ul><div class="language-typescript"><button title="Copy code" data-copied="Copied" class="copy"></button><span class="lang">typescript</span><pre class="shiki shiki-themes github-light github-dark" style="--shiki-light:#24292e;--shiki-dark:#e1e4e8;--shiki-light-bg:#fff;--shiki-dark-bg:#24292e;" tabindex="0" dir="ltr"><code><span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">node.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">setData</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">({</span></span>
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<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> id: </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">'button_1'</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">,</span></span>
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<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> type: </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">'button'</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">,</span></span>
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<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> style: { width: </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">100</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> },</span></span>
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<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> events: []</span></span>
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<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">});</span></span></code></pre></div><h3 id="addeventtoqueue" tabindex="-1">addEventToQueue <a class="header-anchor" href="#addeventtoqueue" aria-label="Permalink to “addEventToQueue”"></a></h3><ul><li><p><strong>参数：</strong></p><ul><li><code>{EventCache} event</code> 待处理事件项；类型为 <code>{ method: string, fromCpt: any, args: any[] }</code></li></ul></li><li><p><strong>返回：</strong></p><ul><li><code>{void}</code></li></ul></li><li><p><strong>详情：</strong></p><p>将事件添加到节点内部的事件队列，等待组件实例 <code>mounted</code> 后再依次调用对应的方法（<code>instance[event.method](event.fromCpt, ...event.args)</code>）。</p></li></ul><h3 id="setinstance" tabindex="-1">setInstance <a class="header-anchor" href="#setinstance" aria-label="Permalink to “setInstance”"></a></h3><ul><li><p><strong>参数：</strong></p><ul><li><code>{any} instance</code> 组件实例</li></ul></li><li><p><strong>返回：</strong></p><ul><li><code>{void}</code></li></ul></li><li><p><strong>详情：</strong></p><p>设置组件实例，并绑定队列中的事件。</p></li><li><p><strong>示例：</strong></p></li></ul><div class="language-typescript"><button title="Copy code" data-copied="Copied" class="copy"></button><span class="lang">typescript</span><pre class="shiki shiki-themes github-light github-dark" style="--shiki-light:#24292e;--shiki-dark:#e1e4e8;--shiki-light-bg:#fff;--shiki-dark-bg:#24292e;" tabindex="0" dir="ltr"><code><span class="line"><span style="--shiki-light:#62687b;--shiki-dark:#818e99;">// 通常在组件挂载时调用</span></span>
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<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">node.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">setInstance</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(componentInstance);</span></span></code></pre></div><h3 id="registermethod" tabindex="-1">registerMethod <a class="header-anchor" href="#registermethod" aria-label="Permalink to “registerMethod”"></a></h3><div class="warning custom-block"><p class="custom-block-title">@deprecated</p><p>该方法已废弃，请使用 <code>setInstance</code> 替代。</p></div><ul><li><p><strong>参数：</strong></p><ul><li><code>{Methods} methods</code> 方法集合，形如 <code>{ [name: string]: (...args: any[]) => any }</code></li></ul></li><li><p><strong>返回：</strong></p><ul><li><code>{void}</code></li></ul></li><li><p><strong>详情：</strong></p><p>将给定方法挂载到 <code>instance</code> 上。如果当前 <code>instance</code> 不存在，会先创建一个空对象再合并方法。</p></li></ul><h3 id="runhookcode" tabindex="-1">runHookCode <a class="header-anchor" href="#runhookcode" aria-label="Permalink to “runHookCode”"></a></h3><ul><li><p><strong>参数：</strong></p><ul><li><code>{string} hook</code> 钩子名称（如 <code>'created'</code>、<code>'mounted'</code>、<code>'destroy'</code> 等，由节点 schema 决定）</li><li><code>{object} params</code> 参数（可选）</li></ul></li><li><p><strong>返回：</strong></p><ul><li><code>{Promise<void>}</code></li></ul></li><li><p><strong>详情：</strong></p><p>执行节点的钩子代码。内部会根据节点 schema 中 <code>hook</code> 字段的实际形态进行处理：</p><ul><li>兼容旧格式：当 <code>data[hook]</code> 直接是函数时，作为函数调用；</li><li>新格式：当 <code>data[hook]</code> 是 <code>{ hookType, hookData[] }</code> 且 <code>hookType === HookType.CODE</code> 时，按顺序遍历 <code>hookData</code>，根据 <code>codeType</code> 调用 <code>app.runCode</code> 或 <code>app.runDataSourceMethod</code>。</li></ul></li><li><p><strong>示例：</strong></p></li></ul><div class="language-typescript"><button title="Copy code" data-copied="Copied" class="copy"></button><span class="lang">typescript</span><pre class="shiki shiki-themes github-light github-dark" style="--shiki-light:#24292e;--shiki-dark:#e1e4e8;--shiki-light-bg:#fff;--shiki-dark-bg:#24292e;" tabindex="0" dir="ltr"><code><span class="line"><span style="--shiki-light:#c62739;--shiki-dark:#F97583;">await</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> node.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">runHookCode</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">'mounted'</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, { data: someData });</span></span></code></pre></div><h3 id="destroy" tabindex="-1">destroy <a class="header-anchor" href="#destroy" aria-label="Permalink to “destroy”"></a></h3><ul><li><p><strong>返回：</strong></p><ul><li><code>{void}</code></li></ul></li><li><p><strong>详情：</strong></p><p>销毁节点，清理事件监听和组件实例。</p></li></ul><h2 id="生命周期事件" tabindex="-1">生命周期事件 <a class="header-anchor" href="#生命周期事件" aria-label="Permalink to “生命周期事件”"></a></h2><p>Node 实例会触发以下生命周期事件：</p><table tabindex="0"><thead><tr><th>事件名</th><th>说明</th></tr></thead><tbody><tr><td><code>created</code></td><td>组件创建完成时触发</td></tr><tr><td><code>mounted</code></td><td>组件挂载完成时触发</td></tr><tr><td><code>destroy</code></td><td>组件销毁时触发</td></tr><tr><td><code>update-data</code></td><td>数据更新时触发</td></tr></tbody></table><h3 id="监听示例" tabindex="-1">监听示例 <a class="header-anchor" href="#监听示例" aria-label="Permalink to “监听示例”"></a></h3><div class="language-typescript"><button title="Copy code" data-copied="Copied" class="copy"></button><span class="lang">typescript</span><pre class="shiki shiki-themes github-light github-dark" style="--shiki-light:#24292e;--shiki-dark:#e1e4e8;--shiki-light-bg:#fff;--shiki-dark-bg:#24292e;" tabindex="0" dir="ltr"><code><span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">node.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">on</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">'mounted'</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, () </span><span style="--shiki-light:#c62739;--shiki-dark:#F97583;">=></span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> {</span></span>
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<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> console.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">log</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">'组件已挂载'</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">);</span></span>
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<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">});</span></span>
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<span class="line"></span>
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<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">node.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">on</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">'update-data'</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, (</span><span style="--shiki-light:#c13617;--shiki-dark:#FFAB70;">newData</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">) </span><span style="--shiki-light:#c62739;--shiki-dark:#F97583;">=></span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> {</span></span>
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<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> console.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">log</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">'数据已更新'</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, newData);</span></span>
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<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">});</span></span></code></pre></div></div></div></main><footer class="VPDocFooter" data-v-ecefb870 data-v-283d6eff><!--[--><!--]--><!----><nav class="prev-next" aria-labelledby="doc-footer-aria-label" data-v-283d6eff><span class="visually-hidden" id="doc-footer-aria-label" data-v-283d6eff>Pager</span><div class="pager" data-v-283d6eff><a class="VPLink link pager-link prev" href="/tmagic-editor/docs/runtime-api/core/app.html" data-v-283d6eff><!--[--><span class="desc" data-v-283d6eff>Previous page</span><span class="title" data-v-283d6eff>App</span><!--]--></a></div><div class="pager" data-v-283d6eff><a class="VPLink link pager-link next" href="/tmagic-editor/docs/runtime-api/core/page.html" data-v-283d6eff><!--[--><span class="desc" data-v-283d6eff>Next page</span><span class="title" data-v-283d6eff>Page</span><!--]--></a></div></nav></footer><!--[--><!--]--></div></div></div><!--[--><!--]--></div></div><footer class="VPFooter has-sidebar" data-v-60a4fda8 data-v-5376ca3c><div class="container" data-v-5376ca3c><p class="message" data-v-5376ca3c>Powered by 腾讯视频会员平台技术中心</p><p class="copyright" data-v-5376ca3c>Copyright (C) 2025 Tencent.</p></div></footer><!--[--><!--]--></div></div>
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