From 7ea3450bae172e987f5d38546d1c67ba3cff2510 Mon Sep 17 00:00:00 2001
From: "Dr. Maxim Orlovsky" <orlovsky@pandoraprime.ch>
Date: Tue, 27 Dec 2022 12:42:07 +0100
Subject: [PATCH] Revert MSRV-breaking clippy changes

---
 src/data/arithm.rs | 12 ++++++------
 src/data/number.rs |  2 +-
 src/lib.rs         |  3 +++
 3 files changed, 10 insertions(+), 7 deletions(-)

diff --git a/src/data/arithm.rs b/src/data/arithm.rs
index 573c611..13c3996 100644
--- a/src/data/arithm.rs
+++ b/src/data/arithm.rs
@@ -122,13 +122,13 @@ impl Number {
                 .checked_add(rhs.to_i1024_bytes())
                 .map(Number::from)
                 .and_then(|n| n.reshaped(Layout::signed(n.layout().bytes()), true))
-                .and_then(|mut n| (n.reshape(Layout::signed(bytes)) || flags.wrap).then_some(n)),
+                .and_then(|mut n| (n.reshape(Layout::signed(bytes)) || flags.wrap).then(|| n)),
             (Layout::Integer(IntLayout { bytes, .. }), false) => self
                 .to_u1024_bytes()
                 .checked_add(rhs.to_u1024_bytes())
                 .map(Number::from)
                 .and_then(|n| n.reshaped(Layout::unsigned(n.layout().bytes()), true))
-                .and_then(|mut n| (n.reshape(Layout::unsigned(bytes)) || flags.wrap).then_some(n)),
+                .and_then(|mut n| (n.reshape(Layout::unsigned(bytes)) || flags.wrap).then(|| n)),
             (Layout::Float(_), _) => panic!("integer addition of float numbers"),
         }
     }
@@ -150,13 +150,13 @@ impl Number {
                 .checked_sub(rhs.to_i1024_bytes())
                 .map(Number::from)
                 .and_then(|n| n.reshaped(Layout::signed(n.layout().bytes()), true))
-                .and_then(|mut n| (n.reshape(Layout::signed(bytes)) || flags.wrap).then_some(n)),
+                .and_then(|mut n| (n.reshape(Layout::signed(bytes)) || flags.wrap).then(|| n)),
             (Layout::Integer(IntLayout { bytes, .. }), false) => self
                 .to_u1024_bytes()
                 .checked_sub(rhs.to_u1024_bytes())
                 .map(Number::from)
                 .and_then(|n| n.reshaped(Layout::unsigned(n.layout().bytes()), true))
-                .and_then(|mut n| (n.reshape(Layout::unsigned(bytes)) || flags.wrap).then_some(n)),
+                .and_then(|mut n| (n.reshape(Layout::unsigned(bytes)) || flags.wrap).then(|| n)),
             (Layout::Float(_), _) => panic!("integer subtraction of float numbers"),
         }
     }
@@ -178,13 +178,13 @@ impl Number {
                 .checked_mul(rhs.to_i1024_bytes())
                 .map(Number::from)
                 .and_then(|n| n.reshaped(Layout::signed(n.layout().bytes()), true))
-                .and_then(|mut n| (n.reshape(Layout::signed(bytes)) || flags.wrap).then_some(n)),
+                .and_then(|mut n| (n.reshape(Layout::signed(bytes)) || flags.wrap).then(|| n)),
             (Layout::Integer(IntLayout { bytes, .. }), false) => self
                 .to_u1024_bytes()
                 .checked_mul(rhs.to_u1024_bytes())
                 .map(Number::from)
                 .and_then(|n| n.reshaped(Layout::unsigned(n.layout().bytes()), true))
-                .and_then(|mut n| (n.reshape(Layout::unsigned(bytes)) || flags.wrap).then_some(n)),
+                .and_then(|mut n| (n.reshape(Layout::unsigned(bytes)) || flags.wrap).then(|| n)),
             (Layout::Float(_), _) => panic!("integer multiplication of float numbers"),
         }
     }
diff --git a/src/data/number.rs b/src/data/number.rs
index 08e432d..6047f0a 100644
--- a/src/data/number.rs
+++ b/src/data/number.rs
@@ -872,7 +872,7 @@ impl Number {
     /// Transformed number as an optional - or `None` if the operation was impossible without
     /// discarding bit information and `wrap` is set to false.
     pub fn reshaped(mut self, to: Layout, wrap: bool) -> Option<Number> {
-        self.reshape(to).then_some(self).or(if wrap { Some(self) } else { None })
+        self.reshape(to).then(|| self).or(if wrap { Some(self) } else { None })
     }
 
     #[doc(hidden)]
diff --git a/src/lib.rs b/src/lib.rs
index 939477d..500d7b7 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -113,6 +113,9 @@
 //!
 //! [AluVM]: https://github.com/internet2-org/aluvm-spec
 
+// TODO: Remove this once MSRV >= 1.62
+#![allow(clippy::unnecessary_lazy_evaluations)]
+
 // TODO(#6) Complete string operations
 // TODO(#7) Complete assembly compiler for string operations
 // TODO(#8) Implement operations on Edwards curves