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文章阅读:Re: 你们最不喜欢.net的什么?
[同主题阅读] [版面: 窗口里的风景] [作者:LifeAsWater] , 2007年03月09日14:36:24
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发信人: LifeAsWater (烟水寒), 信区: DotNet
标  题: Re: 你们最不喜欢.net的什么?
发信站: BBS 未名空间站 (Fri Mar  9 14:36:24 2007)

Compare delegate approach v.s. interface approach

1. delegate is not type safe. interface explicitly define the contract.

2. no easy way to group delegate. interface can have multiple method defined
.

3. delegate cannot support inheritance. interface supports inheritance and
multiple inheritance.

a delegate is a general class which invoke a predefine method at runtime
using reflection. any method which has the signature can instantiate a
delegate. it is type safe issue. 

No one is bad if it does not be compared to other.
 

【 在 Deling (流浪歌手-爬爬死爬腰酸) 的大作中提到: 】
: This has NOTHING to do with type safety. Don't mix up type with semantics.
: Delegates are not as useful compared to general lamba abstraction (where
: delegates rooted) because they are not treated as values as functional
: languages do. That doesn't neccessarily mean they are a bad thing.



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