diff options
| -rw-r--r-- | src/doc/trpl/plugins.md | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/src/doc/trpl/plugins.md b/src/doc/trpl/plugins.md index a093b97eefb..33f0893466d 100644 --- a/src/doc/trpl/plugins.md +++ b/src/doc/trpl/plugins.md @@ -63,7 +63,7 @@ that implements Roman numeral integer literals. ```ignore #![crate_type="dylib"] -#![feature(plugin_registrar)] +#![feature(plugin_registrar, rustc_private)] extern crate syntax; extern crate rustc; @@ -92,13 +92,13 @@ fn expand_rn(cx: &mut ExtCtxt, sp: Span, args: &[TokenTree]) } }; - let mut text = &text; + let mut text = &*text; let mut total = 0; while !text.is_empty() { match NUMERALS.iter().find(|&&(rn, _)| text.starts_with(rn)) { Some(&(rn, val)) => { total += val; - text = text.slice_from(rn.len()); + text = &text[rn.len()..]; } None => { cx.span_err(sp, "invalid Roman numeral"); @@ -107,7 +107,7 @@ fn expand_rn(cx: &mut ExtCtxt, sp: Span, args: &[TokenTree]) } } - MacEager::expr(cx.expr_usize(sp, total)) + MacEager::expr(cx.expr_u32(sp, total)) } #[plugin_registrar] |