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元表的__index和__newindex命名吐槽~
xatest
·
May 8, 2013
· 4766 views
This topic created in 4749 days ago, the information mentioned may be changed or developed.
Lua中一个奇怪的设计:
原始读索引是rawget(t, i),原始写索引是rawset(t, k, v)。
元表的读索引却是__index,写索引是__newindex,这是什么命名,为什么不保持一致,就叫__getindex和__setindex?
__
索引
元表
1 replies
•
1970-01-01 08:00:00 +08:00
1
middleware
May 27, 2013
Lua 5.2 document:
Note that the metamethod (__index) is tried only when key is not present in table.
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