diff options
Diffstat (limited to 'dhall_core/src/text.rs')
| -rw-r--r-- | dhall_core/src/text.rs | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/dhall_core/src/text.rs b/dhall_core/src/text.rs index 0cfbd7b..e886659 100644 --- a/dhall_core/src/text.rs +++ b/dhall_core/src/text.rs @@ -72,9 +72,21 @@ impl<SubExpr> InterpolatedText<SubExpr> { }), ) } + + pub fn into_iter( + self, + ) -> impl Iterator<Item = InterpolatedTextContents<SubExpr>> { + use std::iter::once; + once(InterpolatedTextContents::Text(self.head)).chain( + self.tail.into_iter().flat_map(|(e, s)| { + once(InterpolatedTextContents::Expr(e)) + .chain(once(InterpolatedTextContents::Text(s))) + }), + ) + } } -impl<'a, SubExpr: Clone + 'a> FromIterator<InterpolatedTextContents<SubExpr>> +impl<'a, SubExpr: 'a> FromIterator<InterpolatedTextContents<SubExpr>> for InterpolatedText<SubExpr> { fn from_iter<T>(iter: T) -> Self @@ -90,7 +102,7 @@ impl<'a, SubExpr: Clone + 'a> FromIterator<InterpolatedTextContents<SubExpr>> match x { InterpolatedTextContents::Text(s) => crnt_str.push_str(&s), InterpolatedTextContents::Expr(e) => { - res.tail.push((e.clone(), "".to_owned())); + res.tail.push((e, "".to_owned())); crnt_str = &mut res.tail.last_mut().unwrap().1; } } |