/// <summary>
/// Creates a <c>LeafExpression</c> capable of evaluating JSON using the operator specified in the JSON rule.
/// </summary>
/// <param name="rootRule">The JSON rule this leaf expression is part of.</param>
/// <returns>The LeafExpression.</returns>
public override Expression ToExpression(RuleDefinition rootRule)
{
LeafExpressionOperator leafOperator = null;
if (this.Exists != null)
{
leafOperator = new ExistsOperator(Exists.Value, isNegative: false);
}
else if (this.HasValue != null)
{
leafOperator = new HasValueOperator(HasValue.Value, isNegative: false);
}
if (leafOperator != null)
{
return(new LeafExpression(rootRule, this.ResourceType, this.Path, leafOperator));
}
throw new NotImplementedException();
}
/// <summary>
/// Creates a LeafExpression.
/// </summary>
/// <param name="rootRule">The parent <c>RuleDefinition</c>.</param>
/// <param name="resourceType">The resource type this expression evaluates.</param>
/// <param name="path">The JSON path being evaluated.</param>
/// <param name="operator">The operator used to evaluate the resource type and/or path.</param>
public LeafExpression(RuleDefinition rootRule, string resourceType, string path, LeafExpressionOperator @operator)
: base(rootRule)
{
(this.ResourceType, this.Path, this.Operator) = (resourceType, path, @operator ?? throw new ArgumentNullException(nameof(@operator)));
}