Create() [2/2]

static CallSite System.Runtime.CompilerServices.CallSite< T >.Create ( Type delegateType, CallSiteBinder binder )

inlinestatic

Definition at line 27 of file CallSite.cs.

    {
        ContractUtils.RequiresNotNull(delegateType, "delegateType");
        ContractUtils.RequiresNotNull(binder, "binder");
        if (!delegateType.IsSubclassOf(typeof(MulticastDelegate)))
        {
            throw Error.TypeMustBeDerivedFromSystemDelegate();
        }
        CacheDict<Type, Func<CallSiteBinder, CallSite>> cacheDict = s_siteCtors;
        if (cacheDict == null)
        {
            cacheDict = (s_siteCtors = new CacheDict<Type, Func<CallSiteBinder, CallSite>>(100));
        }
        if (!cacheDict.TryGetValue(delegateType, out var value))
        {
            MethodInfo method = typeof(CallSite<>).MakeGenericType(delegateType).GetMethod("Create");
            if (delegateType.IsCollectible)
            {
                return (CallSite)method.Invoke(null, new object[1] { binder });
            }
            value = (Func<CallSiteBinder, CallSite>)method.CreateDelegate(typeof(Func<CallSiteBinder, CallSite>));
            cacheDict.Add(delegateType, value);
        }
        return value(binder);
    }

References System.Collections.Generic.Dictionary< TKey, TValue >.Add(), System.Dynamic.Utils.ContractUtils.RequiresNotNull(), System.Runtime.CompilerServices.CallSite< T >.s_siteCtors, System.Collections.Generic.Dictionary< TKey, TValue >.TryGetValue(), System.Linq.Expressions.Error.TypeMustBeDerivedFromSystemDelegate(), and System.value.

Referenced by System.Linq.Expressions.DynamicExpression.CreateCallSite(), and System.Linq.Expressions.DynamicExpression.Reduce().