From 4838a21a5750b52b7d840b7bcad4ed9cbe33edb0 Mon Sep 17 00:00:00 2001
From: Sebastian Schmidt <isibboi@gmail.com>
Date: Thu, 28 Mar 2019 11:14:55 +0100
Subject: [PATCH] Add default implementation for `Operator::is_left_to_right`

---
 src/operator/mod.rs | 84 ++-------------------------------------------
 1 file changed, 3 insertions(+), 81 deletions(-)

diff --git a/src/operator/mod.rs b/src/operator/mod.rs
index 330c728..af5d9eb 100644
--- a/src/operator/mod.rs
+++ b/src/operator/mod.rs
@@ -16,7 +16,9 @@ pub trait Operator: Debug + Display {
     /// and false if they should be evaluated right-to-left.
     /// Left-to-right chaining has priority if operators with different order but same precedence are chained.
     // Make this a const fn once #57563 is resolved
-    fn is_left_to_right(&self) -> bool;
+    fn is_left_to_right(&self) -> bool {
+        true
+    }
 
     /// True if this operator is a leaf, meaning it accepts no arguments.
     // Make this a const fn once #57563 is resolved
@@ -118,10 +120,6 @@ impl Operator for RootNode {
         200
     }
 
-    fn is_left_to_right(&self) -> bool {
-        true
-    }
-
     fn max_argument_amount(&self) -> usize {
         1
     }
@@ -140,10 +138,6 @@ impl Operator for Add {
         95
     }
 
-    fn is_left_to_right(&self) -> bool {
-        true
-    }
-
     fn max_argument_amount(&self) -> usize {
         2
     }
@@ -176,10 +170,6 @@ impl Operator for Sub {
         95
     }
 
-    fn is_left_to_right(&self) -> bool {
-        true
-    }
-
     fn max_argument_amount(&self) -> usize {
         2
     }
@@ -212,10 +202,6 @@ impl Operator for Neg {
         110
     }
 
-    fn is_left_to_right(&self) -> bool {
-        true
-    }
-
     fn max_argument_amount(&self) -> usize {
         1
     }
@@ -242,10 +228,6 @@ impl Operator for Mul {
         100
     }
 
-    fn is_left_to_right(&self) -> bool {
-        true
-    }
-
     fn max_argument_amount(&self) -> usize {
         2
     }
@@ -278,10 +260,6 @@ impl Operator for Div {
         100
     }
 
-    fn is_left_to_right(&self) -> bool {
-        true
-    }
-
     fn max_argument_amount(&self) -> usize {
         2
     }
@@ -314,10 +292,6 @@ impl Operator for Mod {
         100
     }
 
-    fn is_left_to_right(&self) -> bool {
-        true
-    }
-
     fn max_argument_amount(&self) -> usize {
         2
     }
@@ -350,10 +324,6 @@ impl Operator for Exp {
         120
     }
 
-    fn is_left_to_right(&self) -> bool {
-        true
-    }
-
     fn max_argument_amount(&self) -> usize {
         2
     }
@@ -377,10 +347,6 @@ impl Operator for Eq {
         80
     }
 
-    fn is_left_to_right(&self) -> bool {
-        true
-    }
-
     fn max_argument_amount(&self) -> usize {
         2
     }
@@ -401,10 +367,6 @@ impl Operator for Neq {
         80
     }
 
-    fn is_left_to_right(&self) -> bool {
-        true
-    }
-
     fn max_argument_amount(&self) -> usize {
         2
     }
@@ -425,10 +387,6 @@ impl Operator for Gt {
         80
     }
 
-    fn is_left_to_right(&self) -> bool {
-        true
-    }
-
     fn max_argument_amount(&self) -> usize {
         2
     }
@@ -459,10 +417,6 @@ impl Operator for Lt {
         80
     }
 
-    fn is_left_to_right(&self) -> bool {
-        true
-    }
-
     fn max_argument_amount(&self) -> usize {
         2
     }
@@ -493,10 +447,6 @@ impl Operator for Geq {
         80
     }
 
-    fn is_left_to_right(&self) -> bool {
-        true
-    }
-
     fn max_argument_amount(&self) -> usize {
         2
     }
@@ -527,10 +477,6 @@ impl Operator for Leq {
         80
     }
 
-    fn is_left_to_right(&self) -> bool {
-        true
-    }
-
     fn max_argument_amount(&self) -> usize {
         2
     }
@@ -561,10 +507,6 @@ impl Operator for And {
         75
     }
 
-    fn is_left_to_right(&self) -> bool {
-        true
-    }
-
     fn max_argument_amount(&self) -> usize {
         2
     }
@@ -587,10 +529,6 @@ impl Operator for Or {
         70
     }
 
-    fn is_left_to_right(&self) -> bool {
-        true
-    }
-
     fn max_argument_amount(&self) -> usize {
         2
     }
@@ -613,10 +551,6 @@ impl Operator for Not {
         110
     }
 
-    fn is_left_to_right(&self) -> bool {
-        true
-    }
-
     fn max_argument_amount(&self) -> usize {
         1
     }
@@ -638,10 +572,6 @@ impl Operator for Tuple {
         40
     }
 
-    fn is_left_to_right(&self) -> bool {
-        true
-    }
-
     fn max_argument_amount(&self) -> usize {
         2
     }
@@ -702,10 +632,6 @@ impl Operator for Const {
         200
     }
 
-    fn is_left_to_right(&self) -> bool {
-        true
-    }
-
     fn max_argument_amount(&self) -> usize {
         0
     }
@@ -722,10 +648,6 @@ impl Operator for VariableIdentifier {
         200
     }
 
-    fn is_left_to_right(&self) -> bool {
-        true
-    }
-
     fn max_argument_amount(&self) -> usize {
         0
     }