This library provides the multicall!
macro, which allows you to apply multiple operations
to one object without writing the name of the object again and again.
let mut test_variable = 1;
multicall! {
expr:
operation;
set test_variable = operation;
exec normal_operation(#);
operation;
...
{
subexpr:
operation;
set test_variable += operation;
exec normal_operation(#);
operation;
...
}; // this semicolon is mandatory.
}
let mut test_variable = 1;
{
let __multicall_item__ = expr;
__multicall_item__.operation;
test_variable = __multicall_item__.operation;
normal_operation(__multicall_item__);
__multicall_item__.operation;
...
{
let __multicall_item__ = __multicall_item__.subexpr;
__multicall_item__.operation;
test_variable += __multicall_item__.operation;
normal_operation(__multicall_item__);
__multicall_item__.operation;
...
};
}
use multicall::multicall;
use std::ops::AddAssign;
#[derive(Debug)]
struct Test { a: u32, b: i32 }
fn main() {
let mut test = Test { a: 0, b: 0 };
let b_plus_five;
multicall! {
&mut test:
a = 5;
b = 6;
{
b:
add_assign(500);
};
{
a:
add_assign(58);
};
a.add_assign(100 - 58);
set b_plus_five = b + 5;
exec println!("{}, {}", #.a, #.b);
}
println!("{test:?}");
}
More in examples/.
- Basic multicall syntax
-
set
external variables -
exec
normal code - If statements
- ... maybe more