Module source_span::fmt [−][src]
Expand description
Source text formatter with span highlights and notes.
Here are the kind of things you can produce with the
Formatter (without colors):
1 | / pub fn fibonacci(n: i32) -> u64 {
| | ^______^ ^
| | __________________________|________|
| | | |
| | | this is a pair of parenthesis
2 | | | if n < 0 {
| | | ______________^
3 | | | | panic!("{} is negative!", n);
| | | | ^"^^ " ^ this is a pair of parenthesis
| | | | ||_|_____________| |
| | | | |__|_____________|___|
| | | | | |
| | | | | this is a string
| | | | |
| | | | this is a pair of braces
4 | | | | } else if n == 0 {
| | | |_____^ ^
| | | _____|________________|
| | | | |
| | | | this is a pair of braces
5 | | | | panic!("zero is not a right argument to fibonacci()!");
| | | | ^" ^^ "^ parentheses
| | | | ||__________________________________________|_||
| | | | |___________________________________________|_||
| | | | | |
| | | | | this is a string
| | | | |
| | | | parentheses
6 | | | | } else if n == 1 {
| | | |_____^ ^
| | | | |
| | | _____|________________|
| | | | |
| | | | this is a pair of braces
7 | | | | return 1;
8 | | | | }
| | | |_____^ this is a pair of braces
9 | | |
10 | | | let mut sum = 0;
11 | | | let mut last = 0;
12 | | | let mut curr = 1;
13 | | | for _i in 1..n {
| | | ____________________^
14 | | | | sum = last + curr;
15 | | | | last = curr;
16 | | | | curr = sum;
17 | | | | }
| | | |_____^ this is a pair of braces
18 | | | sum
19 | | | }
| | |___^^ this is the whole program
| |_____|| what a nice program!
| |
| this is a pair of braces
20 |Structs
Enums
Character with style information.
Colors used to render the text.
A set of important lines to render.
Highlight format description.