[英]Golang - conversion between structs
I have two structs 我有两个结构
type A struct {
a int
b string
}
type B struct {
A
c string
// more fields
}
I'd like to convert variable of type A to type B (A has defined only basic fields that are crucial for some parts, B on the other hand contains 'full' data). 我想将类型A的变量转换为类型B(A仅定义了对某些部分至关重要的基本字段,而B另一方面包含“完整”数据)。
Is it possible in Go, or do I have to copy fields manually (or create a method A.GetB() or something like this and use this to convert A to B)? 是否可以在Go中,或者我是否必须手动复制字段(或创建方法A.GetB()或类似的东西并使用它将A转换为B)?
By converting do you mean this: 转换你的意思是:
func main() {
// create structA of type A
structA := A{a: 42, b: "foo"}
// convert to type B
structB := B{A: structA}
}
The types A
and B
have different underlying types so they cannot be converted into each other. 类型
A
和B
具有不同的基础类型,因此它们不能相互转换。 No way. 没门。
So either copy manually or provide converter functions or methods which do this copying. 因此,要么手动复制,要么提供转换器功能或执行此复制的方法。
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