| private static NegateBinaryExpression ( Expression expression, TypeSystem typeSystem ) : Expression | ||
| expression | Expression | |
| typeSystem | TypeSystem | |
| return | Expression | |
private static Expression NegateUnaryExpression(Expression expression, TypeSystem typeSystem)
{
V_0 = (UnaryExpression)expression;
V_1 = V_0.get_Operator();
if (V_1 == 1)
{
V_0.set_Operator(11);
return V_0;
}
if (V_1 != 8 && V_1 != 11)
{
throw new ArgumentException("expression");
}
if (V_0.get_Operand().get_CodeNodeType() == 24)
{
V_2 = Negator.NegateBinaryExpression(V_0.get_Operand() as BinaryExpression, typeSystem);
V_0.set_Operand(V_2);
return V_0;
}
if (V_0.get_Operand().get_CodeNodeType() != 23 || (V_0.get_Operand() as UnaryExpression).get_Operator() != 1)
{
V_0.set_Operator(1);
}
else
{
V_0.set_Operand((V_0.get_Operand() as UnaryExpression).get_Operand());
}
return V_0;
}
public static Expression Negate(Expression expression, TypeSystem typeSystem)
{
if (expression == null)
{
return null;
}
V_1 = expression.get_CodeNodeType();
if (V_1 == 23)
{
return Negator.NegateUnaryExpression(expression, typeSystem);
}
if (V_1 == 24)
{
V_2 = (BinaryExpression)expression;
if (!Negator.IsMathOperator(V_2.get_Operator()))
{
return Negator.NegateBinaryExpression(expression, typeSystem);
}
if (String.op_Equality(V_2.get_ExpressionType().get_FullName(), "System.Boolean"))
{
return new UnaryExpression(1, expression, null);
}
return new BinaryExpression(9, expression, new LiteralExpression((object)0, typeSystem, null), typeSystem, null, false);
}
if (V_1 == 36)
{
return Negator.NegateConditionExpression(expression, typeSystem);
}
if (expression.get_CodeNodeType() == 22 && String.op_Equality(expression.get_ExpressionType().get_FullName(), typeSystem.get_Boolean().get_FullName()))
{
return new LiteralExpression((object)(!(Boolean)(expression as LiteralExpression).get_Value()), typeSystem, expression.get_UnderlyingSameMethodInstructions());
}
V_0 = expression.get_ExpressionType().GetDefaultValueExpression(typeSystem) as LiteralExpression;
if (V_0 == null)
{
return new UnaryExpression(1, expression, null);
}
if (String.op_Equality(V_0.get_ExpressionType().get_FullName(), typeSystem.get_Boolean().get_FullName()))
{
return new UnaryExpression(1, expression, null);
}
return new BinaryExpression(9, expression, V_0, typeSystem, null, false);
}