Using it within println hangs compilation

[Fiedzia]

println!(indoc!("hello world"));

hangs compilation

[dtolnay]

Thanks! Check out #17. As a workaround you can use println!("{}", indoc!(...)) or use the "unstable" feature of indoc on a nightly compiler:

[dependencies]
indoc = { version = "0.2", features = ["unstable"] }

#![feature(proc_macro, proc_macro_non_items)]

extern crate indoc;
use indoc::indoc;

fn main() {
    println!(indoc!(""));
}

[dtolnay]

The hang is a compiler bug: rust-lang/rust#44692.

[MightyPork]

it doesn't hang for me, but indoc in format macros is not allowed because the (stable) compiler thinks it is not a string literal. Really unfortunate, as that's the use case I had for it :/

[dtolnay]

It seems the hang was fixed in rustc 1.38.0.

error: format argument must be a string literal
 --> src/main.rs:4:14
  |
4 |     println!(indoc!(""));
  |              ^^^^^^^^^^
  |
  = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
help: you might be missing a string literal to format with
  |
4 |     println!("{}", indoc!(""));
  |              ^^^^^

[dtolnay]

@MightyPork I filed #36 to consider adding println-like macros with indented strings.