Macro wrap 

macro_rules! wrap {
    (dyn $trait:path, $($val:expr), +) => { ... };
    ($($val:expr), +) => { ... };
}

A macro to create a MultiReaders instance from a list of values.

Examples

// Using the macro with trait objects
wrap!(dyn MyTrait, val1, val2, val3);
 
// Using the macro with regular values
wrap!(val1, val2, val3);

Parameters

• dyn $trait: The trait that the values implement (optional).
• $val: The values to be wrapped in the MultiReaders instance.

Usage

• When using the dyn $trait form, each value will be boxed and cast to a trait object.
• When using the form without dyn $trait, the values will be used as they are.