✨ feat(vscode): 代码阅读预览 Rust 的语言卡片

vscode/src/codeReader/rules/rustImpl.ts

@@ -0,0 +1,36 @@
+import type { ImplBlock, KindBadge, LibraryRule, RuleCard, ThemeColor } from '../contract'
+import { implRows, plainSay } from '../rustRows'
+
+/** 和函数卡同一个黄，实现块看起来仍是函数那一挂。 */
+const COLOR: ThemeColor = { dark: '#dcdcaa', light: '#795e26' }
+const BADGE: KindBadge = { label: '实现', color: COLOR, icon: 'square-function' }
+
+/**
+ * impl 的方法表：点方法名展开那张函数卡。
+ * 子块放进属性表某一行，和 React 事件处理同一条路。不看导入，Rust 文件都启用。
+ */
+export const rustImplRule: LibraryRule = {
+  id: 'rust',
+  label: 'Rust 实现',
+  languageIds: ['rust'],
+  libraries: [],
+  claim: block => block.kind === 'impl' ? implCard(block) : undefined,
+  attributeNames: () => ({
+    attributes: {},
+    values: { kind: { 'rust.impl': '实现' } },
+  }),
+}
+
+function implCard(block: ImplBlock): RuleCard {
+  const rows = implRows(block, plainSay())
+  const row = rows.findIndex(item => item.label === '方法')
+  const methods = block.children.filter(child => child.kind === 'function')
+  return {
+    kind: 'rust.impl',
+    badge: BADGE,
+    rows,
+    ...(block.facts.name && { defines: { startIndex: block.facts.name.startIndex, endIndex: block.facts.name.endIndex } }),
+    absorbs: [],
+    ...(row >= 0 && { slots: methods.map((child, item) => ({ block: child, row, item })) }),
+  }
+}