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dealing with errors (assert?, pcall?) — Gideros Forum
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    dealing with errors (assert?, pcall?)

    MoKaLuxMoKaLux Member
    edited November 2020 in General questions
    I need some help please. How would you deal with this error please?

    In my app users can load images (textures). Unfortunately sometimes the image format is not valid (bad compression, ...).

    I have tried using assert and pcall but the result is always nil :/
    -- functions
function X_Anims:isValidTexture()
	local resulte, msg = assert(Texture.new(self.spath), "file is not recognised")
	print(result, msg)
	return result
end
 
function X_Anims:showSS()
	if self.spath and self.spath ~= "" and self:isValidTexture() then
		self.sbmp = Bitmap.new(Texture.new(self.spath))
	end

    EDIT: that was a typo :o
    local resulte, msg = assert(Texture.new(self.spath), "file is not recognised")
    print(result, msg)
    That should be working :)
    my growING GIDEROS github repositories: https://github.com/mokalux?tab=repositories
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    Comments

    • MoKaLuxMoKaLux Member
      edited November 2020
      EDIT 2: nope that doesn't work :'(

      .../AppData/Local/Temp/gideros/mediafiles/20201109_172943_gideros.png:
      Error while reading image file.
      stack traceback:
      levels/x_anims.lua:236: in function 'isValidTexture'

      How would you do it please?
      my growING GIDEROS github repositories: https://github.com/mokalux?tab=repositories
      +1 -1Share on Facebook
    • MoKaLuxMoKaLux Member
      edited November 2020
      EDIT 3: this works :)
      function X_Anims:isValidTexture()
--	local result, msg = assert(Texture.new(self.spath), "file is not recognised")
	local result, msg = pcall(Texture.new, self.spath, "file is not recognised")
	print(result, msg)
	return result
end
      Viva gideros!
      my growING GIDEROS github repositories: https://github.com/mokalux?tab=repositories
      +1 -1Share on Facebook
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