got rid of double-free conditions and segfault

yabCodeStructures.cpp

@@ -140,6 +140,7 @@ void ifStatement::alternative(expression *e)
 {
 	done->generateJumpTo();
 	this->chain->generate();
+	delete this->chain;
 	this->chain=nullptr;
 	if(e!=nullptr)
 	{
@@ -156,6 +157,12 @@ void ifStatement::close()
 	this->done->generate();
 }
 
+ifStatement::~ifStatement()
+{
+	delete this->redo;
+	delete this->done;
+}
+
 /* Loop definitions */
 repeatLoop::repeatLoop():codeType(T_REPEATLOOP)
 {
@@ -176,6 +183,12 @@ void repeatLoop::close(expression *e)
 	loopEnd->generate();
 }
 
+repeatLoop::~repeatLoop()
+{
+	delete loopStart;
+	delete loopEnd;
+}
+
 doLoop::doLoop():codeType(T_DOLOOP)
 {
 	this->loopStart=new label();
@@ -194,6 +207,12 @@ void doLoop::close()
 	this->loopEnd->generate();
 }
 
+doLoop::~doLoop()
+{
+	delete loopStart;
+	delete loopEnd;
+}
+
 whileLoop::whileLoop(expression *e):codeType(T_WHILELOOP)
 {
 	loopContinue=new label();
@@ -216,6 +235,14 @@ void whileLoop::close()
 	loopEnd->generate();
 }
 
+whileLoop::~whileLoop() 
+{
+	delete loopContinue;
+	delete loopStart;
+	delete loopEnd;
+}
+
+
 forLoop::forLoop(variableType *v, expression *start, expression *stop,
 	expression *stepVal):codeType(T_FORLOOP)
 {
@@ -267,3 +294,10 @@ void forLoop::close()
 	var->assignment(stepper);
 	infrastructure->close();
 }
+
+forLoop::~forLoop()
+{
+	delete startTemp;
+	delete stopTemp;
+	delete infrastructure;
+}