override public void LeaveBinaryExpression(BinaryExpression node)
{
if (CheckExpressionType(node.Right))
{
CheckExpressionType(node.Left);
}
if (BinaryOperatorType.ReferenceEquality == node.Operator)
{
if (IsTypeReference(node.Right))
{
Warnings.Add(
CompilerWarningFactory.IsInsteadOfIsa(node));
}
}
//check that the assignment or comparison is meaningful
if (BinaryOperatorType.Assign == node.Operator ||
AstUtil.GetBinaryOperatorKind(node) == BinaryOperatorKind.Comparison)
{
if (AreSameExpressions(node.Left, node.Right))
{
Warnings.Add(
(BinaryOperatorType.Assign == node.Operator)
? CompilerWarningFactory.AssignmentToSameVariable(node)
: CompilerWarningFactory.ComparisonWithSameVariable(node)
);
}
else if (BinaryOperatorType.Assign != node.Operator &&
AreConstantExpressions(node.Left, node.Right))
{
WarnAboutConstantExpression(node);
}
}
}
