public object Execute(object dataContext, ExpressionScope scope)
{
var expression = _expression.Execute(dataContext, scope);
var indexes = _indexes.Select(i => i.Execute(dataContext, scope));
return(ObjectHelper.GetIndexProperty(expression, indexes));
}
public object Execute(object dataContext, ExpressionScope scope)
{
object result;
object invokeTarget = null;
object[] invokeArguments = null;
if (_invokeTarget != null)
{
invokeTarget = _invokeTarget.Execute(dataContext, scope);
}
if (_invokeArguments != null)
{
invokeArguments =
_invokeArguments.Select(i => (i != null) ? i.Execute(dataContext, scope) : null).ToArray();
}
// Вызов статического метода
if (invokeTarget is Type)
{
ReflectionExtensions.InvokeMember((Type)invokeTarget, _methodName, invokeArguments, out result,
_genericArguments);
}
// Вызов метода динамического объекта
else if (invokeTarget is IDynamicMetaObjectProvider)
{
// Получение свойства динамического объекта
var methodDelegate = ObjectHelper.GetProperty(invokeTarget, _methodName) as Delegate;
if (methodDelegate != null)
{
result = ReflectionExtensions.FastDynamicInvoke(methodDelegate, invokeArguments);
}
else
{
ReflectionExtensions.InvokeMember(invokeTarget, _methodName, invokeArguments, out result,
_genericArguments);
}
}
// Вызов метода строготипизированного обычного объекта
else
{
ReflectionExtensions.InvokeMember(invokeTarget, _methodName, invokeArguments, out result,
_genericArguments);
}
return(result);
}
public object Execute(object dataContext, ExpressionScope scope)
{
var expression = _expression.Execute(dataContext, scope);
foreach (var section in _sections)
{
var label = section.Key.Execute(dataContext, scope);
if (Equals(label, expression))
{
return(section.Value.Execute(dataContext, scope));
}
}
return(null);
}
public object Execute(object dataContext, ExpressionScope scope)
{
object result;
var expression = _expression.Execute(dataContext, scope);
if (expression is Type)
{
result = ReflectionExtensions.GetMemberValue((Type)expression, _memberName);
}
else
{
result = ObjectHelper.GetProperty(expression, _memberName);
}
return(result);
}
public object Execute(object dataContext, ExpressionScope scope)
{
var expression = _expression.Execute(dataContext, scope);
if (expression == null)
{
if (_type.IsValueType)
{
expression = ReflectionExtensions.GetDefaultValue(_type);
}
}
else
{
expression = Convert.ChangeType(expression, _type);
}
return(expression);
}
private object ExecuteLambdaExpression(object dataContext, ExpressionScope scope, object[] arguments)
{
if (_body != null)
{
var lambdaScope = new ExpressionScope(scope);
// Заполнение контекста параметрами функции
if (arguments != null)
{
for (var i = 0; i < arguments.Length && i < _parameters.Count; ++i)
{
lambdaScope.DeclareVariable(_parameters[i].Name, arguments[i]);
}
}
return(_body.Execute(dataContext, lambdaScope));
}
return(null);
}
public object Execute(object dataContext, ExpressionScope scope)
{
return((bool)_condition.Execute(dataContext, scope)
? _whenTrue.Execute(dataContext, scope)
: _whenFalse.Execute(dataContext, scope));
}