fix(demo-preview): 使用异步组件加载避免 SSR 报错 - #8362
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通过 defineAsyncComponent 动态导入，避免 demo 组件在服务端渲染时执行顶层副作用，解决 组件依赖 包初始化全局单例报错问题。
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📝 WalkthroughWalkthroughThe demo preview plugin now loads demo components with ChangesDemo Preview Loading
Estimated code review effort: 2 (Simple) | ~10 minutes Merge Risk: 🟡 Moderate · up to Some demo previews can fail at runtime when an example contains a matching import outside the generated script block, potentially causing a ReferenceError. The import detection should be narrowed before merging. 🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
✅ Passed checks (4 passed)
Full details: Docstring CoverageExplanation No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 1 files. Full details: Description checkExplanation The description explains the SSR bug and selects the bug-fix type, but the template's Description section is empty and most checklist items remain unconfirmed, including tests, self-review, style compliance, documentation, and warnings.
✨ Finishing Touches🧪 Generate unit tests (beta)
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Inline comments:
In `@docs/.vitepress/config/plugins/demo-preview.ts`:
- Line 81: The import detection around the state.tokens scan must inspect only
the generated <script setup> block, not unrelated fenced example content, and
must recognize only a value import of defineAsyncComponent from vue. Update the
relevant logic in the demo-preview plugin and add a regression case covering an
example whose fence contains that import while the generated script setup still
requires its runtime binding.
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docs/.vitepress/config/plugins/demo-preview.ts
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| .map((token) => token.content) | ||
| .join(''); | ||
| if (!/import\s*\{[^}]*defineAsyncComponent[^}]*\}\s*from\s*['"]vue['"]/.test(currentContent)) { | ||
| asyncImport = `import { defineAsyncComponent } from 'vue';\n${asyncImport}`; |
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Independently reproduced on the current head: currentContent concatenates every Markdown token, including fence contents. If a page contains a fenced example with import { defineAsyncComponent } from 'vue', this check matches and the generated <script setup> omits the helper import even though the generated component still calls defineAsyncComponent, causing a runtime ReferenceError. Please scope detection to the generated <script setup> html block (and only a real value import), and add a regression for an unrelated fenced example.
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通过 defineAsyncComponent 动态导入，避免 demo 组件在服务端渲染时执行顶层副作用，解决 组件依赖 包初始化全局单例报错问题。
Description
Type of change
Please delete options that are not relevant.
pnpm-lock.yamlunless you introduce a new test example.Checklist
pnpm run docs:devcommand.pnpm test.feat:,fix:,perf:,docs:, orchore:.Summary by CodeRabbit