go - How to force compiler to control value/pointer-to-value func arguments? -

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dealing go's funcs discovered 1 can't force compiler control whether pass value or pointer-to-value argument when using 'generic' interface{} type.

func f(o interface{}) { ... }

the obvious solution use following modification:

func f(o *interface{}) { ... }

although compiled didn't find step right. so, there means state want pass pointer?

no. @ compile time, interface{}, empty interface, type.

all types implement empty interface: interface{} interface types


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