1 files changed, 32 insertions, 12 deletions
diff --git a/parser/src/pair_ext_parse.rs b/parser/src/pair_ext_parse.rs
index a04b3dd..cbb51b0 100644
--- a/parser/src/pair_ext_parse.rs
+++ b/parser/src/pair_ext_parse.rs
@@ -1,21 +1,41 @@
 use std::str::FromStr;
 
-use pest::Span;
+use pest::error::{Error, ErrorVariant};
 use pest::iterators::Pair;
-use pest::error::{Error,ErrorVariant};
-
+use pest::Span;
 
-pub trait PairExt<R> where R: pest::RuleType {
-	fn parse<T, E>(&self) -> Result<T, Error<R>> where T: FromStr<Err = E>, E: ToString;
+pub trait PairExt<R>
+where
+    R: pest::RuleType,
+{
+    fn parse<T, E>(&self) -> Result<T, Box<Error<R>>>
+    where
+        T: FromStr<Err = E>,
+        E: ToString;
 }
 
-impl<'l, R> PairExt<R> for Pair<'l, R> where R: pest::RuleType {
-	fn parse<T, E>(&self) -> Result<T, Error<R>> where T: FromStr<Err = E>, E: ToString {
-		self.as_str().parse().map_err(|e| to_parse_error(self.as_span(), &e))
-	}
+impl<'l, R> PairExt<R> for Pair<'l, R>
+where
+    R: pest::RuleType,
+{
+    fn parse<T, E>(&self) -> Result<T, Box<Error<R>>>
+    where
+        T: FromStr<Err = E>,
+        E: ToString,
+    {
+        self.as_str()
+            .parse()
+            .map_err(|e| to_parse_error(self.as_span(), &e))
+    }
 }
 
-pub(crate) fn to_parse_error<E, R>(span: Span, e: &E) -> Error<R> where E: ToString, R: pest::RuleType {
-	let var: ErrorVariant<R> = ErrorVariant::CustomError { message: e.to_string() };
-	Error::new_from_span(var, span)
+pub(crate) fn to_parse_error<E, R>(span: Span, e: &E) -> Box<Error<R>>
+where
+    E: ToString,
+    R: pest::RuleType,
+{
+    let var: ErrorVariant<R> = ErrorVariant::CustomError {
+        message: e.to_string(),
+    };
+    Box::new(Error::new_from_span(var, span))
 }