public AstBinaryExpression(AstBinaryOperator @operator, AstExpression arg1, AstExpression arg2)
{
_operator = @operator;
_arg1 = Ensure.IsNotNull(arg1, nameof(arg1));
_arg2 = Ensure.IsNotNull(arg2, nameof(arg2));
}
public AstGetFieldExpression(AstExpression input, AstExpression fieldName)
{
_input = Ensure.IsNotNull(input, nameof(input));
_fieldName = Ensure.IsNotNull(fieldName, nameof(fieldName));
}
public AstAccumulatorExpression(AstAccumulatorOperator @operator, AstExpression arg)
{
_operator = @operator;
_arg = Ensure.IsNotNull(arg, nameof(arg));
}
public AstUnaryExpression(AstUnaryOperator @operator, AstExpression arg)
{
_operator = @operator;
_arg = Ensure.IsNotNull(arg, nameof(arg));
}
public AstDerivativeOrIntegralWindowExpression Update(AstDerivativeOrIntegralWindowOperator @operator, AstExpression arg, WindowTimeUnit?unit, AstWindow window)
{
if (@operator == _operator && arg == _arg && unit == _unit && window == _window)
{
return(this);
}
return(new AstDerivativeOrIntegralWindowExpression(@operator, arg, unit, window));
}
public AstUnaryWindowExpression(AstUnaryWindowOperator @operator, AstExpression arg, AstWindow window)
{
_operator = @operator;
_arg = Ensure.IsNotNull(arg, nameof(arg));
_window = window;
}
public AstBinaryWindowExpression Update(AstBinaryWindowOperator @operator, AstExpression arg1, AstExpression arg2, AstWindow window)
{
if (@operator == _operator && arg1 == _arg1 && arg2 == _arg2 && window == _window)
{
return(this);
}
return(new AstBinaryWindowExpression(@operator, arg1, arg2, window));
}
public AstDerivativeOrIntegralWindowExpression(AstDerivativeOrIntegralWindowOperator @operator, AstExpression arg, WindowTimeUnit?unit, AstWindow window)
{
_operator = @operator;
_arg = Ensure.IsNotNull(arg, nameof(arg));
_unit = unit;
_window = window;
}
public AstBinaryWindowExpression(AstBinaryWindowOperator @operator, AstExpression arg1, AstExpression arg2, AstWindow window)
{
_operator = @operator;
_arg1 = Ensure.IsNotNull(arg1, nameof(arg1));
_arg2 = Ensure.IsNotNull(arg2, nameof(arg2));
_window = window;
}
public static AstAccumulatorField AccumulatorField(string name, AstAccumulatorOperator @operator, AstExpression arg)
{
var value = new AstAccumulatorExpression(@operator, arg);
return(new AstAccumulatorField(name, value));
}
public static AstAccumulatorExpression AccumulatorExpression(AstAccumulatorOperator @operator, AstExpression arg)
{
return(new AstAccumulatorExpression(@operator, arg));
}
// public static methods
public static AstExpression Abs(AstExpression arg)
{
return(new AstUnaryExpression(AstUnaryOperator.Abs, arg));
}
public AstCondExpression(AstExpression @if, AstExpression @then, AstExpression @else)
{
_if = Ensure.IsNotNull(@if, nameof(@if));
_then = Ensure.IsNotNull(@then, nameof(@then));
_else = Ensure.IsNotNull(@else, nameof(@else));
}
