private Clause CreateClauseFromExpression(BinaryExpression binaryExp)
{
if (binaryExp.NodeType == ExpressionType.AndAlso || binaryExp.NodeType == ExpressionType.OrElse)
{
BinaryExpression leftExpression = binaryExp.Left as BinaryExpression;
if (leftExpression == null)
{
throw new UnsupportedExpressionException("Expression in left side is invalid.", nameof(BinaryExpression));
}
BinaryExpression rightsExpression = binaryExp.Right as BinaryExpression;
if (rightsExpression == null)
{
throw new UnsupportedExpressionException("Expression in right side is invalid.", nameof(BinaryExpression));
}
return(new LogicalClause(
SqlBuilderHelper.MapExpressionTypeToBooleanOperation(binaryExp.NodeType),
CreateClauseFromExpression(leftExpression),
CreateClauseFromExpression(rightsExpression)
));
}
return(new ComparisonClause(
SqlBuilderHelper.MapExpressionTypeToBinaryOperation(binaryExp.NodeType),
SqlBuilderHelper.GetClassNameFromExpression(binaryExp.Left),
SqlBuilderHelper.GetMemberNameFromExpression(binaryExp.Left),
SqlBuilderHelper.GetRightValueFromBinaryExpression(binaryExp)
));
}