[ici]

What I'm trying to do is register a private forward that accepts different functags.

For instance look at SDKHooks:

PHP Code:

funcenum SDKHookCB
{
    ...
    // OnTakeDamagePost
    public(victim, attacker, inflictor, Float:damage, damagetype),
    public(victim, attacker, inflictor, Float:damage, damagetype, weapon, const Float:damageForce[3], const Float:damagePosition[3]),
    ...
} 


This page tells me that forwards are type-checked and that forward's parameter types must be known in advance, and if you push a mismatching type, the call will not complete.

In this scenario:

PHP Code:

public Native_HookForward(Handle:plugin, numParams)
{
    AddToForward(g_Forward, plugin, Function:GetNativeCell(1)); // Here, check against a valid functag
} 


How can I check the function's tag that I've passed to make sure I push the correct number of parameters in the forward call?

Suppose this is not possible, if I push more parameters than the function I've registered accepts, would it still work? Would it just ignore the extra params?

Example:

PHP Code:

enum MyHookType
{
    MyHook_OnTick
}

funcenum MyHookCB
{
    // OnTick
    public(client),
    public(client, tick)
}

// new Handle:g_hFwdOnTick[MAXPLAYERS+1];
// g_hFwdOnTick[client] = CreateForward(ET_Ignore, Param_Cell, Param_Cell);

public Native_MyHook(Handle:plugin, numParams)
{
    new client = GetNativeCell(1);
    // client checks here, throw native errors
    
    new MyHookType:type = MyHookType:GetNativeCell(2);
    
    switch (type)
    {
        case MyHook_OnTick:
        {
            AddToForward(g_hFwdOnTick[client], plugin, Function:GetNativeCell(3));
        }
    }
}

// native MyHook(client, MyHookType:type, MyHookCB:callback); 


[WildCard65]

Forwards can't check SP function params when functions are being added.

Creating the forward requires params to be known so it can validate params YOU PUSH are correct type.

[Peace-Maker]

Additional parameters in a forward passed to a callback with less parameters are just inacessable and ignored in the callback.