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Go Interfaces

Ian Lance Taylor, one of the authors of Go, just posted two articles: Go Interfaces and Go Interface Values.

I consider these part of the hopefully upcoming "Go for Smalltalk Programmers". ;)

By Manuel J. Simoni at 2009-11-30 22:42 | LtU Forum | previous forum topic | next forum topic | other blogs | 6980 reads

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Another post

By Russ Cox: Go Data Structures: Interfaces

By Manuel J. Simoni at Tue, 2009-12-01 18:38 | login or register to post comments

1) Open Multimethods? 2) Nominal vs. Structural Subtyping

First, without inheritance, I'm wondering if Go could support an open multimethod programming model with some reasonable method resolution logic.

Second, am I dreaming, or does Go opt for nominal typing when it comes to interfaces and datatype methods (via the type name?), but then "revert" to structural subtyping when it comes to parameter passing?

Yes, an interface name might be attached to a parameter, but IIRC, this name bears no programmatic relationship to the datatype that implements the methods that satisfy this interface - yes?

And (thinking loosely of the let/lambda equivalence) how do other forms of binding fit into this scheme: variable binding, assignment, etc.???

Thanks,

Scott

By scottmcl at Wed, 2009-12-02 03:47 | login or register to post comments