protected override Expression VisitRuntimeVariables(RuntimeVariablesExpression node)
{
int count = node.Variables.Count;
List <Expression> initializers = new List <Expression>();
List <ParameterExpression> variables = new List <ParameterExpression>();
int[] numArray = new int[count];
for (int i = 0; i < count; i++)
{
Expression closureItem = this.GetClosureItem(node.Variables[i], false);
if (closureItem == null)
{
numArray[i] = variables.Count;
variables.Add(node.Variables[i]);
}
else
{
numArray[i] = -1 - initializers.Count;
initializers.Add(closureItem);
}
}
if (initializers.Count == 0)
{
return(node);
}
NewArrayExpression expression2 = Expression.NewArrayInit(typeof(IStrongBox), initializers);
if (variables.Count == 0)
{
return(Expression.Invoke(Expression.Constant(new Func <IStrongBox[], IRuntimeVariables>(System.Management.Automation.Interpreter.RuntimeVariables.Create)), new Expression[] { expression2 }));
}
Func <IRuntimeVariables, IRuntimeVariables, int[], IRuntimeVariables> func = new Func <IRuntimeVariables, IRuntimeVariables, int[], IRuntimeVariables>(MergedRuntimeVariables.Create);
return(Expression.Invoke(Utils.Constant(func), new Expression[] { Expression.RuntimeVariables(variables), expression2, Utils.Constant(numArray) }));
}
public DynamicMetaObject GetMetaObject(Expression parameter, int index)
{
return(DynamicMetaObject.Create(
GetArgument(index),
Expression.Call(
s_getArgMethod,
AstUtils.Convert(parameter, typeof(ArgumentArray)),
AstUtils.Constant(index)
)
));
}