protected virtual CalcExpression VisitFunctionExpression(CalcFunctionExpression expr, int baseRow, int baseColumn)
{
int argCount = expr.ArgCount;
CalcExpression[] args = new CalcExpression[argCount];
bool flag = false;
for (int i = 0; i < argCount; i++)
{
CalcExpression arg = expr.GetArg(i);
args[i] = this.Visit(arg, baseRow, baseColumn);
if (arg != args[i])
{
flag = true;
}
}
if (!flag)
{
return(expr);
}
if (object.ReferenceEquals(expr.Function, null))
{
return(new CalcFunctionExpression(expr.FunctionName, args));
}
return(new CalcFunctionExpression(expr.Function, args));
}
/// <summary>
/// Initializes a new instance of the <see cref="T:Dt.CalcEngine.Expressions.CalcUnaryOperatorExpression" /> class.
/// </summary>
/// <param name="oper">The unary operator.</param>
/// <param name="operand">The operand.</param>
/// <exception cref="T:System.ArgumentNullException"><paramref name="oper" /> or <paramref name="operand" /> is <see langword="null" />.</exception>
public CalcUnaryOperatorExpression(CalcUnaryOperator oper, CalcExpression operand)
{
base.ThrowIfArgumentNull <CalcUnaryOperator>(oper, "oper");
base.ThrowIfArgumentNull <CalcExpression>(operand, "operand");
this._operator = oper;
this._operand = operand;
}
/// <summary>
/// Initializes a new instance of the <see cref="T:Dt.CalcEngine.Expressions.CalcBinaryOperatorExpression" /> class.
/// </summary>
/// <param name="oper">The binary operator.</param>
/// <param name="left">The left operand.</param>
/// <param name="right">The right operand.</param>
public CalcBinaryOperatorExpression(CalcBinaryOperator oper, CalcExpression left, CalcExpression right)
{
base.ThrowIfArgumentNull <CalcBinaryOperator>(oper, "oper");
base.ThrowIfArgumentNull <CalcExpression>(left, "left");
base.ThrowIfArgumentNull <CalcExpression>(right, "right");
this._operator = oper;
this._left = left;
this._right = right;
}
protected virtual CalcExpression VisitUnaryOperatorExpression(CalcUnaryOperatorExpression expr, int baseRow, int baseColumn)
{
CalcExpression operand = expr.Operand;
CalcExpression expression2 = this.Visit(operand, baseRow, baseColumn);
if (operand != expression2)
{
return(new CalcUnaryOperatorExpression(expr.Operator, expression2));
}
return(expr);
}
private CalcExpression VisitParenthesesExpression(CalcParenthesesExpression expr, int baseRow, int baseColumn)
{
CalcExpression arg = expr.Arg;
CalcExpression expression2 = this.Visit(arg, baseRow, baseColumn);
if (arg != expression2)
{
return(new CalcParenthesesExpression(expression2));
}
return(expr);
}
protected virtual CalcExpression VisitBinaryOperatorExpression(CalcBinaryOperatorExpression expr, int baseRow, int baseColumn)
{
CalcExpression left = expr.Left;
CalcExpression right = expr.Right;
CalcExpression expression3 = this.Visit(left, baseRow, baseColumn);
CalcExpression expression4 = this.Visit(right, baseRow, baseColumn);
if ((left == expression3) && (right == expression4))
{
return(expr);
}
return(new CalcBinaryOperatorExpression(expr.Operator, expression3, expression4));
}
/// <summary>
/// Get a new expression with specific offset.
/// </summary>
/// <param name="row">the row offset</param>
/// <param name="column">the column offset</param>
/// <param name="offsetAbsolute"><c>true</c> if offset the absolute indexes.</param>
/// <param name="offsetRelative"><c>true</c> if offset the relative indexes.</param>
/// <returns>
/// Return a <see cref="T:Dt.CalcEngine.Expressions.CalcExpression" /> which offset from current expression.
/// </returns>
public override CalcExpression Offset(int row, int column, bool offsetAbsolute = false, bool offsetRelative = true)
{
CalcExpression[] args = new CalcExpression[this.ArgCount];
for (int i = 0; i < args.Length; i++)
{
args[i] = this.GetArg(i).Offset(row, column, offsetAbsolute, offsetRelative);
}
if (this.Function != null)
{
return(new CalcFunctionExpression(this.Function, args));
}
return(new CalcFunctionExpression(this.FunctionName, args));
}
public virtual CalcExpression Visit(CalcExpression expr, int baseRow, int baseColumn)
{
CalcConstantExpression expression = expr as CalcConstantExpression;
if (expression != null)
{
return(this.VisitConstantExpression(expression));
}
CalcCellExpression expression2 = expr as CalcCellExpression;
if (expression2 != null)
{
return(this.VisitCellExpression(expression2, baseRow, baseColumn));
}
CalcRangeExpression expression3 = expr as CalcRangeExpression;
if (expression3 != null)
{
return(this.VisitRangeExpression(expression3, baseRow, baseColumn));
}
CalcUnaryOperatorExpression expression4 = expr as CalcUnaryOperatorExpression;
if (expression4 != null)
{
return(this.VisitUnaryOperatorExpression(expression4, baseRow, baseColumn));
}
CalcBinaryOperatorExpression expression5 = expr as CalcBinaryOperatorExpression;
if (expression5 != null)
{
return(this.VisitBinaryOperatorExpression(expression5, baseRow, baseColumn));
}
CalcFunctionExpression expression6 = expr as CalcFunctionExpression;
if (expression6 != null)
{
return(this.VisitFunctionExpression(expression6, baseRow, baseColumn));
}
CalcExternalCellExpression expression7 = expr as CalcExternalCellExpression;
if (expression7 != null)
{
return(this.VisitExternalCellExpression(expression7, baseRow, baseColumn));
}
CalcExternalRangeExpression expression8 = expr as CalcExternalRangeExpression;
if (expression8 != null)
{
return(this.VisitExternalRangeExpression(expression8, baseRow, baseColumn));
}
if (expr is CalcSharedExpression)
{
CalcExpression expression9 = (expr as CalcSharedExpression).Expression;
CalcExpression expression10 = this.Visit(expression9, baseRow, baseColumn);
if (expression10 == expression9)
{
return(expr);
}
return(new CalcSharedExpression(expression10));
}
CalcParenthesesExpression expression11 = expr as CalcParenthesesExpression;
if (expression11 != null)
{
return(this.VisitParenthesesExpression(expression11, baseRow, baseColumn));
}
CalcNameExpression expression12 = expr as CalcNameExpression;
if (expression12 != null)
{
return(this.VisitNameExpression(expression12, baseRow, baseColumn));
}
CalcExternalNameExpression expression13 = expr as CalcExternalNameExpression;
if (expression13 != null)
{
return(this.VisitExternalNameExpression(expression13, baseRow, baseColumn));
}
CalcSheetRangeExpression expression14 = expr as CalcSheetRangeExpression;
if (expression14 != null)
{
return(this.VisitSheetRangeExpression(expression14, baseRow, baseColumn));
}
return(expr);
}
/// <summary>
/// Initializes a new instance of the <see cref="T:Dt.CalcEngine.Expressions.CalcParenthesesExpression" /> class.
/// </summary>
/// <param name="arg">Expression inside the parentheses.</param>
/// <exception cref="T:System.ArgumentNullException">arg is <see langword="null" />. </exception>
public CalcParenthesesExpression(CalcExpression arg)
{
base.ThrowIfArgumentNull <CalcExpression>(arg, "arg");
this._argument = arg;
}
/// <summary>
/// Initializes a new instance of the <see cref="T:Dt.CalcEngine.Expressions.CalcSharedExpression" />.
/// </summary>
/// <param name="expr"></param>
public CalcSharedExpression(CalcExpression expr)
{
this.Expression = expr;
}