d398eb76ae
Different Identifiers and Names can have identical textual representations, but different internal representations, due to the macro hygiene machinery (syntax contexts and gensyms). This provides a way to see these internals by compiling with `--pretty expanded,hygiene`. This is useful for debugging & hacking on macros (e.g. diagnosing https://github.com/rust-lang/rust/issues/15750/https://github.com/rust-lang/rust/issues/15962 likely would've been faster with this functionality). E.g. ```rust #![feature(macro_rules)] // minimal junk #![no_std] macro_rules! foo { ($x: ident) => { y + $x } } fn bar() { foo!(x) } ``` ```rust #![feature(macro_rules)] // minimal junk #![no_std] fn bar /* 61#0 */() { y /* 60#2 */ + x /* 58#3 */ } ``` |
||
|---|---|---|
| .. | ||
| auxiliary | ||
| bench | ||
| codegen | ||
| compile-fail | ||
| compile-fail-fulldeps | ||
| debuginfo | ||
| pretty | ||
| run-fail | ||
| run-make | ||
| run-pass | ||
| run-pass-fulldeps | ||