/// <summary>
/// Builds the expression.
/// </summary>
/// <param name="param">The rule.</param>
/// <param name="typeParameterExpressions">The type parameter expressions.</param>
/// <param name="ruleInputExp">The rule input exp.</param>
/// <returns></returns>
/// <exception cref="InvalidOperationException"></exception>
private Expression BuildExpression(LocalParam param, IEnumerable <ParameterExpression> typeParameterExpressions, ParameterExpression ruleInputExp)
{
var ruleExpressionBuilder = _expressionBuilderFactory.RuleGetExpressionBuilder(RuleExpressionType.LambdaExpression);
var expression = ruleExpressionBuilder.BuildExpressionForRuleParam(param, typeParameterExpressions, ruleInputExp);
return(expression);
}
/// <summary>
/// Builds the expression.
/// </summary>
/// <param name="rule">The rule.</param>
/// <param name="typeParameterExpressions">The type parameter expressions.</param>
/// <param name="ruleInputExp">The rule input exp.</param>
/// <returns></returns>
/// <exception cref="InvalidOperationException"></exception>
private RuleFunc <RuleResultTree> BuildExpression(Rule rule, IEnumerable <ParameterExpression> typeParameterExpressions, RuleParameter[] ruleParams)
{
if (!rule.RuleExpressionType.HasValue)
{
throw new InvalidOperationException($"RuleExpressionType can not be null for leaf level expressions.");
}
var ruleExpressionBuilder = _expressionBuilderFactory.RuleGetExpressionBuilder(rule.RuleExpressionType.Value);
var expression = ruleExpressionBuilder.BuildExpressionForRule(rule, typeParameterExpressions);
return(expression);
}
/// <summary>
/// Builds the expression.
/// </summary>
/// <param name="rule">The rule.</param>
/// <param name="typeParameterExpressions">The type parameter expressions.</param>
/// <param name="ruleInputExp">The rule input exp.</param>
/// <returns></returns>
/// <exception cref="InvalidOperationException"></exception>
private RuleFunc <RuleResultTree> BuildRuleFunc(Rule rule, RuleParameter[] ruleParams)
{
if (!rule.RuleExpressionType.HasValue)
{
throw new InvalidOperationException($"RuleExpressionType can not be null for leaf level expressions.");
}
var ruleExpressionBuilder = _expressionBuilderFactory.RuleGetExpressionBuilder(rule.RuleExpressionType.Value);
var ruleFunc = ruleExpressionBuilder.BuildDelegateForRule(rule, ruleParams);
return(ruleFunc);
}
private RuleExpressionBuilderBase GetExpressionBuilder(RuleExpressionType expressionType)
{
return(_expressionBuilderFactory.RuleGetExpressionBuilder(expressionType));
}
