This crate provides a proc macro to generate "let bindings" automatically, usually cloning values into an expression(usually a closure). Inspired by crate enclose.

Syntax

bind!( ( comma_separated_list_of_var_bindings ) the_expr_that_uses_the_vars )

comma_separated_list_of_var_bindings is in the form of var_binding, another var_binding, ....

var_binding is in the form of:

1. id, generating let id = id.clone();

2. mut id, generating let mut id = id.clone();

3. new_id = id, generating let new_id = id.clone();

4. mut new_id = id, generating let mut new_id = id.clone();

5. id = expr, generating let id = expr;

6. mut id = expr, generating let mut id = expr;

7. expr, generating let the_only_id_in_the_expr = expr;, e.g. bind!( (s.to_owned()) .. ) generates let s = s.to_owned().

8. mut expr, generating let mut the_only_id_in_the_expr = expr; e.g. bind!( (mut s.to_owned()) .. ) generates let mut s = s.to_owned().