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Add "Assert" Global Function #2206

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Add "Assert" Global Function #2206

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251f83a
Add Assert global function
Zaurzo Feb 8, 2025
aacea6f
Fix variable name
Zaurzo Feb 8, 2025
0972755
Fallback errorLevel before expression check
Zaurzo Feb 8, 2025
f2c6cab
Check for nil
Zaurzo Feb 8, 2025
11d20a3
Varargs check for nil
Zaurzo Feb 8, 2025
86116b1
Format error message before expression check
Zaurzo Feb 8, 2025
06bbe49
Combine into one if statement
Zaurzo Feb 8, 2025
c6e0212
Only return expression, errorMessage, and varargs
Zaurzo Feb 9, 2025
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33 changes: 33 additions & 0 deletions garrysmod/lua/includes/util.lua
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Original file line number Diff line number Diff line change
Expand Up @@ -423,6 +423,39 @@ function Either( iff, aa, bb )
return bb
end

--[[---------------------------------------------------------
Custom assert with more features
-----------------------------------------------------------]]
local ProtectedCall = ProtectedCall
local Format = Format
local error = error

function Assert( expression, errorMessage, errorLevel, noHalt, ... )

if ( errorMessage != nil ) then

if ( ... != nil ) then
errorMessage = Format( errorMessage, ... )
end

else
errorMessage = "assertion failed!"
end

if ( expression ) then
return expression, errorMessage, ...
end

errorLevel = errorLevel or 1

if noHalt then
ProtectedCall( error, errorMessage, errorLevel + 2 )
else
error( errorMessage, errorLevel + 1 )
end

end

--
-- You can use this function to add your own CLASS_ var.
-- Adding in this way will ensure your CLASS_ doesn't collide with another
Expand Down