Add PtrAsValue function to convert a pointer to a value

logic.go

@@ -22,3 +22,11 @@ func IfThen[T any](cond bool, a, b T) T {
 	}
 	return b
 }
+
+// PtrAsValue returns the value of `v` if `v` is not `nil`, else def
+func PtrAsValue[T any](v *T, def T) T {
+	if v == nil {
+		return def
+	}
+	return *v
+}

logic_test.go

@@ -34,4 +34,9 @@ func TestLogic(t *testing.T) {
 		assert.Equal(t, 1, IfThen(true, 1, 2))
 		assert.Equal(t, 2, IfThen(false, 1, 2))
 	})
+
+	t.Run("PtrAsValue", func(t *testing.T) {
+		assert.Equal(t, 1, PtrAsValue(&[]int{1}[0], 2))
+		assert.Equal(t, 2, PtrAsValue((*int)(nil), 2))
+	})
 }