bkp

orchid-extension/src/conv.rs

@@ -1,6 +1,9 @@
 use orchid_base::location::Pos;
 
-use crate::{atom::{AtomicFeatures, TypAtom}, error::{ProjectError, ProjectResult}, expr::{atom, bot_obj, ExprHandle, GenExpr, OwnedExpr}, system::downcast_atom};
+use crate::atom::{AtomicFeatures, TypAtom};
+use crate::error::{ProjectError, ProjectResult};
+use crate::expr::{atom, bot_obj, ExprHandle, GenExpr, OwnedExpr};
+use crate::system::downcast_atom;
 
 pub trait TryFromExpr: Sized {
   fn try_from_expr(expr: ExprHandle) -> ProjectResult<Self>;
@@ -25,14 +28,14 @@ impl ProjectError for ErrorNotAtom {
 pub struct ErrorUnexpectedType(Pos);
 impl ProjectError for ErrorUnexpectedType {
   const DESCRIPTION: &'static str = "Type error";
-  fn one_position(&self) -> Pos {
-      self.0.clone()
-  }
+  fn one_position(&self) -> Pos { self.0.clone() }
 }
 
 impl<A: AtomicFeatures> TryFromExpr for TypAtom<A> {
   fn try_from_expr(expr: ExprHandle) -> ProjectResult<Self> {
-    OwnedExpr::new(expr).foreign_atom().map_err(|ex| ErrorNotAtom(ex.pos.clone()).pack())
+    OwnedExpr::new(expr)
+      .foreign_atom()
+      .map_err(|ex| ErrorNotAtom(ex.pos.clone()).pack())
       .and_then(|f| downcast_atom(f).map_err(|f| ErrorUnexpectedType(f.pos).pack()))
   }
 }
@@ -43,13 +46,13 @@ pub trait ToExpr {
 
 impl<T: ToExpr> ToExpr for ProjectResult<T> {
   fn to_expr(self) -> GenExpr {
-      match self {
-        Err(e) => bot_obj(e),
-        Ok(t) => t.to_expr(),
-      }
+    match self {
+      Err(e) => bot_obj(e),
+      Ok(t) => t.to_expr(),
+    }
   }
 }
 
 impl<A: AtomicFeatures> ToExpr for A {
   fn to_expr(self) -> GenExpr { atom(self) }
-}
+}