Sync

src/prolog/builtins/arithmeticOperators.kt

@@ -40,8 +40,8 @@ class EvaluatesToDifferent(private val left: Expression, private val right: Expr
     }
 
     override fun applySubstitution(subs: Substitutions): EvaluatesToDifferent = EvaluatesToDifferent(
-        left.applySubstitution(subs) as Expression,
-        right.applySubstitution(subs) as Expression
+        applySubstitution(left, subs),
+        applySubstitution(right, subs)
     )
 }
 
@@ -63,8 +63,8 @@ class EvaluatesTo(private val left: Expression, private val right: Expression) :
     }
 
     override fun applySubstitution(subs: Substitutions): EvaluatesTo = EvaluatesTo(
-        left.applySubstitution(subs) as Expression,
-        right.applySubstitution(subs) as Expression
+        applySubstitution(left, subs),
+        applySubstitution(right, subs)
     )
 }
 
@@ -89,8 +89,8 @@ class Is(val number: Expression, val expr: Expression) :
     }
 
     override fun applySubstitution(subs: Substitutions): Is = Is(
-        number.applySubstitution(subs) as Expression,
-        expr.applySubstitution(subs) as Expression
+        applySubstitution(number, subs),
+        applySubstitution(expr, subs)
     )
 }
 
@@ -117,8 +117,8 @@ open class Add(private val expr1: Expression, private val expr2: Expression) :
     }
 
     override fun applySubstitution(subs: Substitutions): Add = Add(
-        expr1.applySubstitution(subs) as Expression,
-        expr2.applySubstitution(subs) as Expression
+        applySubstitution(expr1, subs),
+        applySubstitution(expr2, subs)
     )
 }
 
@@ -140,8 +140,8 @@ open class Subtract(private val expr1: Expression, private val expr2: Expression
     }
 
     override fun applySubstitution(subs: Substitutions): Subtract = Subtract(
-        expr1.applySubstitution(subs) as Expression,
-        expr2.applySubstitution(subs) as Expression
+        applySubstitution(expr1, subs),
+        applySubstitution(expr2, subs)
     )
 }
 
@@ -158,8 +158,8 @@ class Multiply(val expr1: Expression, val expr2: Expression) :
     }
 
     override fun applySubstitution(subs: Substitutions): Multiply = Multiply(
-        expr1.applySubstitution(subs) as Expression,
-        expr2.applySubstitution(subs) as Expression
+        applySubstitution(expr1, subs),
+        applySubstitution(expr2, subs)
     )
 }
 
@@ -173,8 +173,8 @@ class Divide(private val expr1: Expression, private val expr2: Expression) :
     }
 
     override fun applySubstitution(subs: Substitutions): Divide = Divide(
-        expr1.applySubstitution(subs) as Expression,
-        expr2.applySubstitution(subs) as Expression
+        applySubstitution(expr1, subs),
+        applySubstitution(expr2, subs)
     )
 }
 
@@ -206,9 +206,9 @@ class Between(private val expr1: Expression, private val expr2: Expression, priv
     }
 
     override fun applySubstitution(subs: Substitutions): Between = Between(
-        expr1.applySubstitution(subs) as Expression,
-        expr2.applySubstitution(subs) as Expression,
-        expr3.applySubstitution(subs) as Expression
+        applySubstitution(expr1, subs),
+        applySubstitution(expr2, subs),
+        applySubstitution(expr3, subs)
     )
 
     override fun toString(): String = "$expr1..$expr3..$expr2"