rSyntax ---- Rust libsyntax for rFmt

https://github.com/zBaitu/rsyntax

Overview

rSyntax is cloned from Rust libsyntax. It's only used for rFmt, another Rust source code formatter.

Features

Only 3 file are changed. * lib.rs
Add some pub use. * ast.rs
Add Debug for some struct/enum. * parser.rs
Skip sub mod parse, and make the high position equals to the low position of the sub mod span, to specify this is a sub mod.

/// Parse a `mod <foo> { ... }` or `mod <foo>;` item fn parse_item_mod(&mut self, outer_attrs: &[Attribute]) -> PResult<'a, ItemInfo> { let id_span = self.span; let id = self.parse_ident()?; if self.check(&token::Semi) { self.bump(); // baitu // This mod is in an external file. Let's go get it! // let (m, attrs) = self.eval_src_mod(id, outer_attrs, id_span)?; // Ok((id, m, Some(attrs))) Ok((id, ItemKind::Mod( Mod { inner: mk_sp(id_span.lo, id_span.lo), items: Vec::new(), }), None))