Shallow copy and deep copy implementation

The image assignment in T is the same as in Java, and is passed as a reference. That is, when assigning a pair of values to a variable, the variable is still pointing to the address of the original image. How do you do that? The answer is cloning.

What is clone?

In the actual programming process, we often encounter this situation: there is an object A, in a moment a has already included some valid values, you may need one and a exactly the same new object B, and any subsequent changes to B will not affect the value of a, that is, A and B are two separate objects, But the initial value of B is determined by the A object. In the Java/javasript language, this requirement is not satisfied with simple assignment statements. There are many ways to meet this requirement, but implementing the Clone () method is one of the simplest and most efficient means, and of course there is no such method in the T language.

So I specifically wrote two cloning methods: one for shallow copy, one for deep copy. Explanation:

Shallow copy (Shadow clone): Only the base type of the object is copied, the object type, and still belongs to the original reference.

Deep copy (Deep clone): The basic class of the object is not tightly copied, and the objects in the original object are copied as well. That is, it is entirely new. The following is the test code: Run the Code box [Ctrl + A ALL SELECT hint: You can modify part of the code, and then run] Welcome to our forum discussion!