/// <summary>
/// Converts the expression syntax node of a number to its double value equivalent.
/// </summary>
/// <param name="expression">An expression syntax node containing a number to convert.</param>
/// <returns>If conversion succeeded, contains double value equivalent. If failed, contains null.</returns>
static public double?ParseFromExpressionDoubleOrNull(ExpressionSyntax expression)
{
var walker = new DoubleExpressionWalker();
walker.Visit(expression);
return(walker.Value);
}
/// <summary>
/// Converts the expression syntax node of a number to its double value equivalent.
/// </summary>
/// <param name="expression">An expression syntax node containing a number to convert.</param>
/// <returns>If conversion succeeded, contains double value equivalent. If failed, contains null.</returns>
public static double? ParseFromExpressionDoubleOrNull(ExpressionSyntax expression)
{
var walker = new DoubleExpressionWalker();
walker.Visit(expression);
return walker.Value;
}
