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23 lines
432 B
Go
23 lines
432 B
Go
package ref
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import (
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"fmt"
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)
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// New creates a reference for a given pointer
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func New[T any](v *T) Ref[T] {
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if v == nil {
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var zero T
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return Ref[T]{ptr: &zero}
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}
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return Ref[T]{ptr: v}
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}
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// Ref is a read reference to some value T
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type Ref[T any] struct { ptr *T }
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// Val reads the value for this reference
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func (r Ref[T]) Val() T { return *r.ptr }
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func (r Ref[T]) String() string { return fmt.Sprintf("ref{%v}", *r.ptr) }
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