/// <summary>
/// Simplifies the target <paramref name="expression"/>.
/// </summary>
/// <param name="expression">The <see cref="LambdaExpression"/> to simplify.</param>
/// <returns>A simplified version of the target <paramref name="expression"/></returns>
public static LambdaExpression Simplify(this LambdaExpression expression)
{
expression = new MatchExpressionRewriter().Rewrite(expression);
return
(LambdaExpression)expression.PartialEval(
e => e.NodeType != ExpressionType.Parameter && e.NodeType != ExpressionType.Lambda);
}
/// <summary>
/// Simplifies the target <paramref name="expression"/>.
/// </summary>
/// <param name="expression">The <see cref="LambdaExpression"/> to simplify.</param>
/// <returns>A simplified version of the target <paramref name="expression"/></returns>
public static LambdaExpression?Simplify(this LambdaExpression expression)
{
expression = MatchExpressionRewriter.Rewrite(expression);
return
((LambdaExpression?)expression.PartialEval(
e => e.NodeType != ExpressionType.Parameter && e.NodeType != ExpressionType.Lambda));
}
/// <summary>
/// Replaces references to the <see cref="The{TValue}.IsAnyValue"/> with a <see cref="MethodCallExpression"/>
/// that represents calling the <see cref="The{TValue}.Is"/> method.
/// </summary>
/// <param name="expression">The <see cref="LambdaExpression"/> to visit.</param>
/// <returns><see cref="Expression"/>.</returns>
public static LambdaExpression Rewrite(LambdaExpression expression)
{
var @this = new MatchExpressionRewriter();
return((LambdaExpression)@this.Visit(expression));
}