{"version":3,"file":"emits.mjs","names":[],"sources":["../../../src/utils/vue/emits.ts"],"sourcesContent":["import { computed } from \"vue\";\nimport type { ComputedRef } from \"vue\";\n\n/** Vue Emits 对象中允许的校验器形状 */\ntype EmitValidator = ((...arguments_: never[]) => unknown) | null;\n/** 事件名到可选参数校验器的内部映射 */\ntype EmitsOptions = Record<string, EmitValidator>;\n/** 从校验器中提取事件参数；无校验器时保留未知参数。 */\ntype EventArguments<Validator> = Validator extends (...arguments_: infer Arguments) => unknown ? Arguments : unknown[];\n/** 在类型层递归把 kebab-case 事件名转换为 PascalCase */\ntype PascalEventName<Value extends string> = Value extends `${infer Head}-${infer Tail}`\n\t? `${Capitalize<Head>}${PascalEventName<Tail>}`\n\t: Capitalize<Value>;\n\n/** 把事件配置映射为 Vue `onXxx` 属性 */\nexport type EmitHandlers<Emits extends EmitsOptions> = {\n\t[Name in keyof Emits as Name extends string ? `on${PascalEventName<Name>}` : never]: (...arguments_: EventArguments<Emits[Name]>) => void;\n};\n\n/**\n * 把事件名转换为 Vue Handler Prop 名称。\n *\n * @param eventName - Emits 对象中的原始事件名，可使用 kebab-case。\n * @returns `onPascalCase` 形式的属性名\n * @throws `TypeError` 当事件名包含空片段或无法生成有效 Handler 名称。\n */\nconst toHandlerName = (eventName: string): string => {\n\treturn `on${eventName\n\t\t.split(\"-\")\n\t\t.map((part) => part.charAt(0).toUpperCase() + part.slice(1))\n\t\t.join(\"\")}`;\n};\n\n/**\n * 构建响应式 Vue 事件处理器。\n *\n * @param emits - Vue emits 配置对象\n * @param emit - `setup` 上下文提供的 emit 函数\n * @param ignoredEvents - 不需要向子组件透传的事件名\n * @returns 随配置重新计算的事件处理器对象\n */\nexport function useEmits<Emits extends EmitsOptions>(\n\temits: Emits,\n\temit: (...arguments_: never[]) => unknown,\n\tignoredEvents: readonly (keyof Emits)[] = []\n): ComputedRef<Partial<EmitHandlers<Emits>>> {\n\tconst ignored = new Set<PropertyKey>(ignoredEvents);\n\tconst emitEvent = emit as (eventName: string, ...arguments_: unknown[]) => void;\n\treturn computed<Partial<EmitHandlers<Emits>>>(() => {\n\t\tconst handlers = {} as Partial<EmitHandlers<Emits>>;\n\t\tconst handlerNames = new Set<string>();\n\t\tfor (const eventName of Object.keys(emits)) {\n\t\t\tif (ignored.has(eventName)) continue;\n\t\t\tif (eventName.length === 0 || /\\s/u.test(eventName)) throw new TypeError(`Invalid Vue event name: \"${eventName}\".`);\n\t\t\tconst handlerName = toHandlerName(eventName);\n\t\t\tif (handlerNames.has(handlerName)) {\n\t\t\t\tthrow new TypeError(`Multiple Vue events map to the same handler property: \"${handlerName}\".`);\n\t\t\t}\n\t\t\thandlerNames.add(handlerName);\n\t\t\tObject.defineProperty(handlers, handlerName, {\n\t\t\t\tenumerable: true,\n\t\t\t\tvalue: (...arguments_: unknown[]) => {\n\t\t\t\t\temitEvent(eventName, ...arguments_);\n\t\t\t\t},\n\t\t\t\twritable: true,\n\t\t\t});\n\t\t}\n\t\treturn handlers;\n\t});\n}\n"],"mappings":";;;;;;;;;AA0BA,MAAM,iBAAiB,cAA8B;CACpD,OAAO,KAAK,UACV,MAAM,GAAG,CAAC,CACV,KAAK,SAAS,KAAK,OAAO,CAAC,CAAC,CAAC,YAAY,IAAI,KAAK,MAAM,CAAC,CAAC,CAAC,CAC3D,KAAK,EAAE;AACV;;;;;;;;;AAUA,SAAgB,SACf,OACA,MACA,gBAA0C,CAAC,GACC;CAC5C,MAAM,UAAU,IAAI,IAAiB,aAAa;CAClD,MAAM,YAAY;CAClB,OAAO,eAA6C;EACnD,MAAM,WAAW,CAAC;EAClB,MAAM,+BAAe,IAAI,IAAY;EACrC,KAAK,MAAM,aAAa,OAAO,KAAK,KAAK,GAAG;GAC3C,IAAI,QAAQ,IAAI,SAAS,GAAG;GAC5B,IAAI,UAAU,WAAW,KAAK,MAAM,KAAK,SAAS,GAAG,MAAM,IAAI,UAAU,4BAA4B,UAAU,GAAG;GAClH,MAAM,cAAc,cAAc,SAAS;GAC3C,IAAI,aAAa,IAAI,WAAW,GAC/B,MAAM,IAAI,UAAU,0DAA0D,YAAY,GAAG;GAE9F,aAAa,IAAI,WAAW;GAC5B,OAAO,eAAe,UAAU,aAAa;IAC5C,YAAY;IACZ,QAAQ,GAAG,eAA0B;KACpC,UAAU,WAAW,GAAG,UAAU;IACnC;IACA,UAAU;GACX,CAAC;EACF;EACA,OAAO;CACR,CAAC;AACF"}