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Error handling for GG API functions template 2.0

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About This File

Note:
  This file is intended to be used by script developers.
  If you don't develop scripts or don't know what it is, ignore this file.

Description:
  
The file consists of three functions:
    - "attachHandler" function modifies a function in a way that when it returns a string, specified error handling function is called with that string as argument. It returns modified version of the function. This function should only be used on functions that return a string with error description when an error occurs. There is a list of such functions from GG API in the file.
    - "defaultHandler" function is an example of error handling function.
    - "testError" function (commented by default) "simulates" a function that has returned a string with error description, used for testing.

How to use:
  1. Include contents of the file at the beginning of your code.
  2. Optionally create custom error handling functions. Error handling function has to accept 1 argument - a string with error description.
  3. Use "attachHandler" function to get modified version of the function and either redefine original function with it or store it in a new variable.
  4. Repeat step 3 for all desired functions.

Examples: 

-- Custom error handling function
local function myHandler(errorText)
  gg.toast('Whoops, looks like something went wrong', true)
  gg.toast('Mysterious error: ' .. errorText)
  print('Description of the error that has occurred during script execution:\n' .. errorText)
end

-- Using default error handling function and redefining the original function
gg.searchNumber = attachHandler(gg.searchNumber, defaultHandler)

-- Using custom error handling function and storing modified function in a new variable
local getResultsModified = attachHandler(gg.getResults, myHandler)

-- If an error occurs, "defaultHandler" function will be called
gg.searchNumber('123', gg.TYPE_DWORD)

-- If an error occurs, no error handling function will be called
local results1 = gg.getResults(100)

-- If an error occurs, "myHandler" function will be called
local results2 = getResultsModified(100)

What's New in Version 2.0   See changelog

Released

Implemented a better way of attaching error handling functions.




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noblack

   1 of 1 member found this review helpful 1 / 1 member

@CmP

Thank you so much for makeing this, 

this thing can make my project go faster.

Thank you again.

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