[stablecoin]: make it compile

git.patch

diff --git a/src/ringbuffer.rs b/src/ringbuffer.rs
index 600f9ed..a57a88f 100644
--- a/src/ringbuffer.rs
+++ b/src/ringbuffer.rs
@@ -4,27 +4,27 @@ use frame_support::storage::{StorageValue, StorageMap};
 
 pub type Index = u16;
 
-pub struct RingBufferTransient<T> {
+pub struct RingBufferTransient<T, I, B, M> {
 	start: Index,
 	end: Index,
-	_t: PhantomData<T>,
+	_t: PhantomData<(T, I, B, M)>,
 }
 
-impl<T, I, B, M> RingBufferTransient<T>
+impl<T, I, B, M> RingBufferTransient<T, I, B, M>
 where
 	I: Codec + EncodeLike,
 	B: StorageValue<(Index, Index), Query = (Index, Index)>,
 	M: StorageMap<Index, I, Query = I>,
-	T: RingBufferTrait<I, B, M, Item = I, Bounds = B, Map = M>
+	T: RingBufferTrait<I, Item = I, Bounds = B, Map = M>
 {
 
-	fn new() -> RingBufferTransient<T> {
-		let (start, end) = RingBufferTrait::Bounds::get();
-		RingBufferTransient {start, end, _t: PhantomData }
+	fn new() -> RingBufferTransient<T, I, B, M> {
+		let (start, end) = <<T as RingBufferTrait<I>>::Bounds>::get();
+		RingBufferTransient { start, end, _t: PhantomData }
 	}
 }
 
-pub trait RingBufferTrait<I, B, M> 
+pub trait RingBufferTrait<I>
 where
 	I: Codec + EncodeLike,
 {
@@ -40,12 +40,12 @@ where
 	fn pop(&mut self) -> Option<Self::Item>;
 }
 
-impl<T, I, B, M> RingBufferTrait<I, B, M> for RingBufferTransient<T>
+impl<T, I, B, M> RingBufferTrait<I> for RingBufferTransient<T, I, B, M>
 where
 	I: Codec + EncodeLike,
 	B: StorageValue<(Index, Index), Query = (Index, Index)>,
 	M: StorageMap<Index, I, Query = I>,
-	T: RingBufferTrait<I, B, M>,
+	T: RingBufferTrait<I>,
 {
 	type Item = I;
 	type Bounds = B;
@@ -74,7 +74,7 @@ where
 
 	fn push_front(&mut self, item: Self::Item) {
 		if self.start == self.end {
-			<Self as RingBufferTrait<I, B, M>>::push(self, item);
+			<Self as RingBufferTrait<I>>::push(self, item);
 			return;
 		}
 		let index = self.start.wrapping_sub(1);
@@ -88,7 +88,7 @@ where
 		}
 		let item = Self::Map::take(self.start);
 		self.start = self.start.wrapping_add(1);
-		
+
 		item.into()
 	}
 }