rust/src/test/run-pass/proc-macro/negative-token.rs

// aux-build:negative-token.rs

#![feature(proc_macro_hygiene)]

extern crate negative_token;

use negative_token::*;

fn main() {
    assert_eq!(-1, neg_one!());
    assert_eq!(-1.0, neg_one_float!());
}
proc_macro: Tweak doc comments and negative literals This commit tweaks the tokenization of a doc comment to use `#[doc = "..."]` like `macro_rules!` does (instead of treating it as a `Literal` token). Additionally it fixes treatment of negative literals in the compiler, for exapmle `Literal::i32(-1)`. The current fix is a bit of a hack around the current compiler implementation, providing a fix at the proc-macro layer rather than the libsyntax layer. 2018-03-30 04:55:54 -05:00			`// aux-build:negative-token.rs`

Merge the `proc_macro_` expansion feature gates into a single `proc_macro_hygiene` gate. 2018-07-05 20:09:35 -05:00			`#![feature(proc_macro_hygiene)]`
proc_macro: Tweak doc comments and negative literals This commit tweaks the tokenization of a doc comment to use `#[doc = "..."]` like `macro_rules!` does (instead of treating it as a `Literal` token). Additionally it fixes treatment of negative literals in the compiler, for exapmle `Literal::i32(-1)`. The current fix is a bit of a hack around the current compiler implementation, providing a fix at the proc-macro layer rather than the libsyntax layer. 2018-03-30 04:55:54 -05:00
			`extern crate negative_token;`

			`use negative_token::*;`

			`fn main() {`
			`assert_eq!(-1, neg_one!());`
			`assert_eq!(-1.0, neg_one_float!());`
			`}`