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How to properly use PCall in this situation?

Asked by
idkaname8 25
8 years ago

Hey there,

I'm currently having issues using pcall properly. My loadstring is executing, but without the argument provided, and not functioning properly. Here's what I'm up to:

function confirmCommand(gameCommand)
    local success, message = pcall(execCommand(gameCommand)) -- line 32
    if success then
    else
        print("An error occured: " .. message)
    end
end

function execCommand(executedCommand)
    loadstring(executedCommand)
end

This is the "secret" script, which is another error I get. It says error loading module yet it still works each time.

require(game.Workspace.Module)

Yes, it's one line.

Here are the errors I receive each time:

14:30:21.559 - Requested module experienced an error while loading
14:30:21.559 - Stack Begin
14:30:21.559 - Script 'Workspace.secret', Line 1
14:30:21.560 - Stack End
14:30:21.560 - Workspace.Module:32: bad argument #1 to 'pcall' (function expected, got no value)
14:30:21.560 - Stack Begin
14:30:21.561 - Script 'Workspace.Module', Line 32 - global confirmCommand
14:30:21.561 - Script 'Workspace.Module', Line 18 - global checkCommand
14:30:21.561 - Script 'Workspace.Module', Line 76
14:30:21.562 - Stack End

Does anyone know what I'm doing wrong?

1 answer

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1
Answered by
User#5423 17
8 years ago

With pcall the arguments that will be passed to the function needs to be separate.

E.g :-

function confirmCommand(gameCommand)
    local success, message = pcall(execCommand, gameCommand) -- function then arguments to be passed
    if success then
    else
        print("An error occured: " .. message)
    end
end

function execCommand(executedCommand)
    loadstring(executedCommand)
end

Hope this helps.

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