/// <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 for rule parameter.</summary>
/// <param name="param">The parameter.</param>
/// <param name="typeParamExpressions">The type parameter expressions.</param>
/// <param name="ruleInputExp">The rule input exp.</param>
/// <returns>Expression.</returns>
internal override Expression BuildExpressionForRuleParam(LocalParam param, IEnumerable <ParameterExpression> typeParamExpressions, ParameterExpression ruleInputExp)
{
var config = new ParsingConfig {
CustomTypeProvider = new CustomTypeProvider(_reSettings.CustomTypes)
};
var e = DynamicExpressionParser.ParseLambda(config, typeParamExpressions.ToArray(), null, param.Expression);
return(e.Body);
}
/// <summary>
/// Gets the expression for rule.
/// </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>
private Func <object[], object> GetDelegateForRuleParam(LocalParam param, RuleParameter[] ruleParameters)
{
return(_ruleExpressionParser.Compile <object>(param.Expression, ruleParameters));
}
/// <summary>
/// Gets the expression for rule.
/// </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>
private Delegate GetDelegateForRuleParam(LocalParam param, RuleParameter[] ruleParameters)
{
return(_ruleExpressionParser.Compile(param.Expression, ruleParameters));
}
/// <summary>
/// Gets the expression for rule.
/// </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>
private Expression GetExpressionForRuleParam(LocalParam param, IEnumerable <ParameterExpression> typeParameterExpressions, ParameterExpression ruleInputExp)
{
return(BuildExpression(param, typeParameterExpressions, ruleInputExp));
}
/// <summary>Builds the expression for rule parameter.</summary> /// <param name="rule">The rule.</param> /// <param name="typeParamExpressions">The type parameter expressions.</param> /// <param name="ruleInputExp">The rule input exp.</param> /// <returns>Expression.</returns> internal abstract Expression BuildExpressionForRuleParam(LocalParam rule, IEnumerable <ParameterExpression> typeParamExpressions, ParameterExpression ruleInputExp);
