commit ddfca05aa7b43f2385efc78dc89db27a53fbf2dd
author David Tolnay <dtolnay@gmail.com> Sun Dec 31 10:41:24 2017 -0500
committer David Tolnay <dtolnay@gmail.com> Sun Dec 31 10:41:45 2017 -0500
tree 9082d24af0d4011059fe88987fb67ab2238edc1a
parent 92ab1b4e3e3bc6defa7716c95cb0af0a6d66f0f6

Omit Span::lo/hi when not using procmacro2_unstable

Token![...] being 24 bytes is a large number.

src/strnom.rs

diff --git a/src/strnom.rs b/src/strnom.rs
index 558be8e..5f23803 100644
--- a/src/strnom.rs
+++ b/src/strnom.rs
@@ -9,6 +9,7 @@
 #[derive(Copy, Clone, Eq, PartialEq)]
 pub struct Cursor<'a> {
     pub rest: &'a str,
+    #[cfg(procmacro2_unstable)]
     pub off: u32,
 }
 
@@ -16,6 +17,7 @@
     pub fn advance(&self, amt: usize) -> Cursor<'a> {
         Cursor {
             rest: &self.rest[amt..],
+            #[cfg(procmacro2_unstable)]
             off: self.off + (amt as u32),
         }
     }