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refactor(class): stricter type-checking

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Linden
2024-03-12 16:09:13 +11:00
parent 105d265792
commit 3135058310
1 changed files with 13 additions and 4 deletions
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17
imports/class/shared.lua
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@@ -15,9 +15,13 @@ local function assertType(id, var, expected)
local received = type(var) local received = type(var)
if received ~= expected then if received ~= expected then
error( error(("expected %s %s to have type '%s' (received %s)")
("expected %s %s to have type '%s' (received %s)"):format(type(id) == 'string' and 'field' or 'argument', id, :format(type(id) == 'string' and 'field' or 'argument', id, expected, received), 3)
expected, received), 3) end
if expected == 'table' and table.type(var) ~= 'hash' then
error(("expected argument %s to have table.type 'hash' (received %s)")
:format(id, table.type(var)), 3)
end end
return true return true
@@ -81,7 +85,12 @@ function lib.class(name, super)
class.__name = name class.__name = name
class.__index = class class.__index = class
return super and setmetatable(class, super) or class if super then
assertType('super', super, 'table')
setmetatable(class, super)
end
return class
end end
return lib.class return lib.class