INNER CODE UNIT · Rust

function_like_read_env_var

intellij-rust/intellij-rust · testData/test-proc-macros/src/lib.rs:11

pub fn function_like_read_env_var(input: TokenStream) -> TokenStream {
    use std::fmt::Write;
    let v = std::env::var("FOO_ENV_VAR").unwrap();
    let mut s = String::new();
    write!(&mut s, "\"{}\"", v);
    return s.parse().unwrap();
}

#[proc_macro]
pub fn function_like_do_println(input: TokenStream) -> TokenStream {
    println!("foobar");
    input
}

#[proc_macro]
pub fn function_like_do_eprintln(input: TokenStream) -> TokenStream {
    eprintln!("foobar");
    input

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