文章摘要
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文章总结
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评论总结
根据评论内容,主要观点和论据总结如下:
1. 对LuaJIT恢复活跃开发的积极反应 - 评论1:认为LuaJIT在十年维护后重启开发是好事,但建议改名以反映语言变化("perhaps LuaJIT 3 would benefit from a change of name") - 评论9:希望所有新特性都加入LuaJIT,认为语法变化能让代码更易读("It’s nice that Lua is simple, the syntax changes should hopefully make Lua code even simpler to read")
2. 对语法扩展的争议(特别是三元运算符和位运算符)
- 支持方:评论6认为x and y or z比?:更令人困惑("Everyone uses x and y or z as a ternanary which i find way more confusing than ?:")
- 反对方:评论2认为三元运算符并非易用性改进("I'm not convinced ternary statements are an ergonomic improvement");评论4批评嵌套三元运算符导致代码混乱("some chuckle heads want to use them everywhere")
- 评论12反对引入符号位运算符,建议用关键字("please spell them out with keywords rather than giving them sigils")
3. 对语言分叉的担忧 - 评论3:认为这些变化将使LuaJIT成为新语言而非兼容实现("it won't be a compatible Lua 5.1 implementation anymore, it will be a new language") - 评论18:认为主动偏离Lua是"hostile"行为,建议改名("Seems like a bad idea to actively diverge from Lua, hostile even")
4. 对具体语法改进的讨论
- 评论6:支持+=和..=运算符("are things i find i'm constantly missing in lua")
- 评论8:推荐使用if x then y else z表达式替代三元运算符("makes it a ton easier to nest")
- 评论11:赞赏^=被故意省略以避免与异或混淆("Exponentiation assignment a ^= b has been deliberately omitted to avoid a predictable pitfall")
5. 对LuaJIT版本兼容性的疑问 - 评论19:质疑为何不跟进到Lua5.5("I wonder why they haven't followed the language spec up to Lua5.5") - 评论15:指出Lua5.3已添加位运算符,LuaJIT正在追赶但命名令人困惑("calling these 'syntax extensions' is confusing")
6. 对Lua语言设计的批评
- 评论16:认为Lua语法过时("Lua is living in the old age here"),但承认其嵌入式领域价值
- 评论17:批评改变and为&&是表面功夫("It's not actually fixing any problems, just making Lua no longer look like Lua")