Crate lisbeth_tuple_tools

Some tools to manipulate tuples.

Most traits in this crate are implemented for tuples with an arity inferior or equal to eight.

TupleAppend

There is no simple way to append a value of type C to a tuple of type (A, B) in rust. This is permitted by TupleAppend.

Example

Here, we append a char to a (char, u32):

use lisbeth_tuple_tools::TupleAppend;

let tup = ('l', 42).append('s');

assert_eq!(tup, ('l', 42, 's'));

TupleMap*

This crate contains TupleMap1, TupleMap2, and so on. These traits provide functions that allow to map a single element of a tuple from one type to an other.

Example

The following example uses TupleMap1, but it can be adapted to any TupleMap* trait:

use lisbeth_tuple_tools::TupleMap1;

let t = ('a', 0, "foo");
let t = t.map_1(char::len_utf8);

assert_eq!(t, (1, 0, "foo"));

Traits

TupleAppend	Allows to append an element at the end of a tuple.
TupleMap1	Allows to map the first element of a tuple to another type.
TupleMap2	Allows to map the second element of a tuple to another type.
TupleMap3	Allows to map the third element of a tuple to another type.
TupleMap4	Allows to map the fourth element of a tuple to another type.
TupleMap5	Allows to map the difth element of a tuple to another type.
TupleMap6	Allows to map the sixth element of a tuple to another type.
TupleMap7	Allows to map the seventh element of a tuple to another type.
TupleMap8	Allows to map the eighth element of a tuple to another type.