File: reserved-prefixes-macro-2021.rs

package info (click to toggle)
rustc 1.85.0%2Bdfsg3-1
  • links: PTS, VCS
  • area: main
  • in suites: experimental, sid, trixie
  • size: 893,396 kB
  • sloc: xml: 158,127; python: 35,830; javascript: 19,497; cpp: 19,002; sh: 17,245; ansic: 13,127; asm: 4,376; makefile: 1,051; perl: 29; lisp: 29; ruby: 19; sql: 11
file content (21 lines) | stat: -rw-r--r-- 693 bytes parent folder | download | duplicates (3)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
//@ edition:2021

extern crate proc_macro;

use proc_macro::TokenStream;
use std::str::FromStr;

#[proc_macro]
pub fn number_of_tokens_in_a_prefixed_integer_literal(_: TokenStream) -> TokenStream {
    TokenStream::from_str("hey#123").unwrap().into_iter().count().to_string().parse().unwrap()
}

#[proc_macro]
pub fn number_of_tokens_in_a_prefixed_char_literal(_: TokenStream) -> TokenStream {
    TokenStream::from_str("hey#'a'").unwrap().into_iter().count().to_string().parse().unwrap()
}

#[proc_macro]
pub fn number_of_tokens_in_a_prefixed_string_literal(_: TokenStream) -> TokenStream {
    TokenStream::from_str("hey#\"abc\"").unwrap().into_iter().count().to_string().parse().unwrap()
}