1 files changed, 11 insertions, 4 deletions
diff --git a/src/strcursor.rs b/src/strcursor.rs
index d733ade..b7c0e5f 100644
--- a/src/strcursor.rs
+++ b/src/strcursor.rs
@@ -18,6 +18,9 @@ use crate::error::ReadError;
 /// `getRemainingLength` (use `get_remaining().len()` or
 /// `remaining_slice().len()`) and `getTotalLength` (use `get_ref().len()`).
 pub trait StringReader<'a>: Sized {
+    /// Returns the total length of the string.
+    //#[inline]
+    fn total_len(&self) -> usize;
     /// Returns the part of the string that has been read so far.
     ///
     /// # Panics
@@ -147,6 +150,10 @@ pub trait StringReader<'a>: Sized {
 
 impl<'a> StringReader<'a> for Cursor<&'a str> {
     #[inline]
+    fn total_len(&self) -> usize {
+        self.get_ref().len()
+    }
+    #[inline]
     fn get_read(&self) -> &'a str {
         &self.get_ref()[..(self.position() as usize)]
     }
@@ -157,7 +164,7 @@ impl<'a> StringReader<'a> for Cursor<&'a str> {
     #[inline]
     fn can_read_n(&self, len: usize) -> bool {
         // NOTE: NOT overflow-aware!
-        self.position() as usize + len <= self.get_ref().len()
+        self.position() as usize + len <= self.total_len()
     }
     #[inline]
     fn peek_n(&self, offset: usize) -> char {
@@ -183,7 +190,7 @@ impl<'a> StringReader<'a> for Cursor<&'a str> {
     where T: FromStr<Err=::std::num::ParseIntError> {
         // see read_unquoted_str for rationale
         let start = self.position() as usize;
-        let total = self.get_ref().len();
+        let total = self.total_len();
         let end = total - {
             self.get_remaining().trim_start_matches(number_chars).len()
         };
@@ -204,7 +211,7 @@ impl<'a> StringReader<'a> for Cursor<&'a str> {
     where T: FromStr<Err=::std::num::ParseFloatError> {
         // see read_unquoted_str for rationale
         let start = self.position() as usize;
-        let total = self.get_ref().len();
+        let total = self.total_len();
         let end = total - {
             self.get_remaining().trim_start_matches(number_chars).len()
         };
@@ -240,7 +247,7 @@ impl<'a> StringReader<'a> for Cursor<&'a str> {
         // there's no easy way to grab start matches, so we have to do something
         // a bit more involved.
         let start = self.position() as usize;
-        let total = self.get_ref().len();
+        let total = self.total_len();
         let end = total - {
             self.get_remaining().trim_start_matches(unquoted_chars).len()
         };