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Code Issues Releases Wiki Activity

Make io handles opaque to the docs

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Yep, this is kinda gross. But also a nice refactor
This commit is contained in:
Jonathan Coates 2021-06-28 22:47:56 +01:00
parent 0b65d56ab0
commit 88f41314c7
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GPG Key ID: B9E431FF07C98D06
1 changed files with 18 additions and 20 deletions
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38
src/main/resources/data/computercraft/lua/rom/apis/io.lua
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@ -173,27 +173,25 @@ handleMetatable = {
},
}
local defaultInput = setmetatable({
_handle = { readLine = _G.read },
}, handleMetatable)
local function make_file(handle)
return setmetatable({ _handle = handle }, handleMetatable)
end
local defaultOutput = setmetatable({
_handle = { write = _G.write },
}, handleMetatable)
local defaultInput = make_file({ readLine = _G.read })
local defaultError = setmetatable({
_handle = {
write = function(...)
local oldColour
if term.isColour() then
oldColour = term.getTextColour()
term.setTextColour(colors.red)
end
_G.write(...)
if term.isColour() then term.setTextColour(oldColour) end
end,
},
}, handleMetatable)
local defaultOutput = make_file({ write = _G.write })
local defaultError = make_file({
write = function(...)
local oldColour
if term.isColour() then
oldColour = term.getTextColour()
term.setTextColour(colors.red)
end
_G.write(...)
if term.isColour() then term.setTextColour(oldColour) end
end,
})
local currentInput = defaultInput
local currentOutput = defaultOutput
@ -316,7 +314,7 @@ function open(filename, mode)
local file, err = fs.open(filename, sMode)
if not file then return nil, err end
return setmetatable({ _handle = file }, handleMetatable)
return make_file(file)
end
--- Get or set the current output file.