build

func Select ¶

func Select(v Var) interface{}

Select returns the field of v that corresponds to the current Release.

Since the caller typically makes a type assertion on the result, it is important to point out that type assertions are stricter than conversions. Specifically, you cannot write:

type myint int
Select(Var{0, 0}).(myint)

Because 0 will be interpreted as an int, which is not assignable to myint. Instead, you must explicitly cast each field in the Var, or cast the return value of Select after the type assertion. The former is preferred.