From 375fcfe9494ec95f70bccf794ef9d14a2158ebda Mon Sep 17 00:00:00 2001
From: Romain Goyet <romain.goyet@numworks.com>
Date: Sat, 30 Sep 2017 18:11:10 +0200
Subject: [PATCH] [poincare] Cleanup the OppositeTransform

---
 .../src/simplification/transform/opposite_transform.cpp    | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/poincare/src/simplification/transform/opposite_transform.cpp b/poincare/src/simplification/transform/opposite_transform.cpp
index 57ca0c6df..bed6a3f67 100644
--- a/poincare/src/simplification/transform/opposite_transform.cpp
+++ b/poincare/src/simplification/transform/opposite_transform.cpp
@@ -5,18 +5,15 @@
 #include <poincare/opposite.h>
 
 bool Poincare::Simplification::OppositeTransform(Expression * captures[]) {
-  assert(captures[0]->type() == Expression::Type::Opposite);
-
   Opposite * o = static_cast<Opposite *>(captures[0]);
+  assert(o->type() == Expression::Type::Opposite);
 
   const Integer * minusOne = new Integer(-1);
   const Expression * multiplicationOperands[2] = {o->operand(0), minusOne};
   Multiplication * m = new Multiplication(multiplicationOperands, 2, false);
 
-  static_cast<Hierarchy *>(o->parent())->replaceOperand(o, m, false);
-
   o->detachOperands();
-  delete o;
+  o->replaceWith(m);
 
   return true;
 }