/// <summary>
/// Creates a new expression that is like this one, but using the supplied children. If all of the children are the same, it will return this expression.
/// </summary>
/// <param name="variable">The <see cref="Variable" /> property of the result.</param>
/// <returns>This expression if no children changed, or an expression with the updated children.</returns>
public VarCSharpPattern Update(ParameterExpression variable)
{
if (variable == Variable)
{
return(this);
}
return(CSharpPattern.Var(_info, variable));
}
/// <summary>
/// Changes the input type to the specified type.
/// </summary>
/// <remarks>
/// This functionality can be used when a pattern is pass to an expression or statement that applies the pattern.
/// </remarks>
/// <param name="inputType">The new input type.</param>
/// <returns>The original pattern rewritten to use the specified input type.</returns>
public override CSharpPattern ChangeType(Type inputType)
{
if (inputType == InputType)
{
return(this);
}
// NB: This can fail if there's a variable and the input type is not compatible. See Var factory.
return(CSharpPattern.Var(ObjectPatternInfo(PatternInfo(inputType, inputType), Variable)));
}