mirror of https://github.com/rust-lang/rust
26 lines
761 B
Rust
26 lines
761 B
Rust
//@ force-host
|
|
//@ edition:2018
|
|
//@ no-prefer-dynamic
|
|
|
|
#![crate_type = "proc-macro"]
|
|
|
|
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()
|
|
}
|