big refactoring
This commit is contained in:
Manuel Simon Hirsig
+52
-52
@@ -1,91 +1,91 @@
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local rawget, setmetatable, mask, add, g = rawget, setmetatable, bit.band, bit.bor, getfenv(0)
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local DECLARED, ACCESSOR, MUTABLE, PUBLIC = 1, 2, 4, 8
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local IMPORTER_KEY, ACCESSOR_KEY, MUTABLE_KEY, PUBLIC_KEY = 'import', 'accessor', 'mutable', 'public'
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local PROPERTY = {[ACCESSOR_KEY]=ACCESSOR, [MUTABLE_KEY]=MUTABLE, [PUBLIC_KEY]=PUBLIC}
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local _modules, _data, _metadata, _modifiers, _modifier_properties, _imports = {}, {}, {}, {}, {}, {}
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local metadata_mt, modifier_mt, env_mt, interface_mt, importer_mt
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local modifier_accessor, accessor_modifier_accessor, mutable_modifier_accessor, public_modifier_accessor
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local error, locked
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local setmetatable, unpack, mask, add, g = setmetatable, unpack, bit.band, bit.bor, getfenv(0)
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local DECLARED, PUBLIC, MUTABLE, ACCESSOR, MUTATOR = 1, 2, 4, 8, 16
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local MODIFIER = {public=PUBLIC, mutable=MUTABLE, accessor=ACCESSOR, mutator=MUTATOR}
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local _10, _01, tf, ft = {[true]=1, [false]=0}, {[true]=0, [false]=1}, {true, false}, {false, true}
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local importer_mt, modifier_mt, env_mt, interface_mt, lock_mt
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local define_property, declarator_accessor, public_accessor, mutable_accessor, accessor_accessor, mutator_accessor, index, error
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local _modules, _metadata, _data, _accessors, _mutators, _imports, _declarators, _declarator_state = setmetatable({}, lock_mt), {}, {}, {}, {}, {}, {}, {}
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function error(message, ...) g.error(format(message, unpack(arg))..'\n'..debugstack(3, 5, 0), 3) end
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metadata_mt = {__index=function() return 0 end }
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importer_mt = {__metatable=false}
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function importer_mt.__call(self, ...)
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local imports = _imports[self]
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for i = 1, arg.n do imports[arg[i]] = true end
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for i=1,arg.n do imports[arg[i]] = true end
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end
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function modifier_accessor(property)
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return function(modifier) return function() _modifier_properties[modifier] = DECLARED+property return modifier end end
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function declarator_accessor(modifier)
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return function(declarator) return function() _declarator_state[declarator] = DECLARED+modifier return declarator end end
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end
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public_accessor, mutable_accessor, accessor_accessor, mutator_accessor = declarator_accessor(PUBLIC), declarator_accessor(MUTABLE), declarator_accessor(ACCESSOR), declarator_accessor(MUTATOR)
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function define_property(self, key, t)
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local accessor, mutator = t.get, t.set
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_declarator_state[self] = add(_01[not accessor]*ACCESSOR, _01[not mutator]*MUTATOR, _declarator_state[self])
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_accessors[self][key], _mutators[self][key] = accessor, mutator
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end
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accessor_modifier_accessor, mutable_modifier_accessor, public_modifier_accessor = modifier_accessor(ACCESSOR), modifier_accessor(MUTABLE), modifier_accessor(PUBLIC)
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modifier_mt = {__metatable=false}
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function modifier_mt.__index(self, key)
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local property = PROPERTY[key]
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if not property then error('Unknown modifier "%s".', key) end
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_modifier_properties[self] = add(property, _modifier_properties[self])
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local modifier = MODIFIER[key]
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if not modifier then return function(t) define_property(self, key, t) end end
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_declarator_state[self] = add(modifier, _declarator_state[self])
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return self
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end
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function modifier_mt.__newindex(self, key, value)
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if rawget(_metadata[self], key) then error('Field "%s" already exists.', key) end
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_metadata[self][key], _data[self][key] = _modifier_properties[self], value
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if _metadata[self][key] then error('Field "%s" already exists.', key) end
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_metadata[self][key], _data[self][key], _accessors[self][key], _mutators[self][key] = _declarator_state[self], value, value, value
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end
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env_mt = {__metatable=false}
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function env_mt.__index(self, key)
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local value, properties = _data[self][key], _metadata[self][key]
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if mask(DECLARED + ACCESSOR, properties) == DECLARED then
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return value
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elseif mask(ACCESSOR, properties) == ACCESSOR then
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return value(key)
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else
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return g[key] or error('No field "%s".', key)
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function index(access, default)
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return function(self, key)
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local modifiers = _metadata[self][key] or 0
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if mask(access+ACCESSOR, modifiers) == access then
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return _data[self][key]
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elseif mask(access, modifiers) ~= 0 then
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return _accessors[self]()
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else
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return default[key] or error('No field "%s".', key)
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end
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end
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end
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env_mt = {__metatable=false, __index=index(DECLARED, g)}
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function env_mt.__newindex(self, key, value)
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if not rawget(_metadata[self], key) then
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if not _metadata[self][key] then
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_metadata[self][key] = DECLARED
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elseif mask(MUTABLE, _metadata[self][key]) == 0 then
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error('Field "%s" is immutable.', key)
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end
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_data[self][key] = value
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end
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interface_mt = {__metatable=false}
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function interface_mt.__index(self, key)
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local value, properties = _data[self][key], _metadata[self][key]
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if mask(ACCESSOR + PUBLIC, properties) == PUBLIC then
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return value
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elseif mask(PUBLIC, properties) ~= 0 or error('No field "%s".', key) then
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return value(key)
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end
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end
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interface_mt = {__metatable=false, __index=index(PUBLIC, {})}
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function interface_mt.__newindex(self, key, value) self[key](value) end
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importer_mt = {__metatable=false}
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lock_mt = {}
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function g.aux_module(name)
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if not _modules[name] then
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local metadata, data, imports, importer, modifier, env, interface
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imports, importer, modifier, env, interface = {}, setmetatable({}, importer_mt), setmetatable({}, modifier_mt), setmetatable({}, env_mt), setmetatable({}, interface_mt)
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metadata = setmetatable({g=DECLARED, m=DECLARED, [IMPORTER_KEY]=DECLARED, [ACCESSOR_KEY]=ACCESSOR, [MUTABLE_KEY]=ACCESSOR, [PUBLIC_KEY]=ACCESSOR}, metadata_mt)
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data = {g=g, m=env, [IMPORTER_KEY]=importer, [ACCESSOR_KEY]=accessor_modifier_accessor(modifier), [MUTABLE_KEY]=mutable_modifier_accessor(modifier), [PUBLIC_KEY]=public_modifier_accessor(modifier)}
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_metadata[name], _metadata[modifier], _metadata[env], _metadata[interface] = metadata, metadata, metadata, metadata
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_data[name], _data[modifier], _data[env], _data[interface] = data, data, data, data
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local metadata, data, accessors, mutators, imports, importer, declarator, env, interface
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imports, importer, declarator, env, interface = {}, setmetatable({}, importer_mt), setmetatable({}, modifier_mt), setmetatable({}, env_mt), setmetatable({}, interface_mt)
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metadata = setmetatable({g=DECLARED, m=DECLARED, import=DECLARED, public=ACCESSOR, mutable=ACCESSOR, accessor=ACCESSOR, mutator=ACCESSOR}, lock_mt)
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data = {g=g, m=env, import=importer, public=public_accessor(declarator), mutable=mutable_accessor(declarator), accessor=accessor_accessor(declarator), mutator=mutator_accessor(declarator)}
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_metadata[name], _metadata[declarator], _metadata[env], _metadata[interface] = metadata, metadata, metadata, metadata
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_data[name], _data[declarator], _data[env], _data[interface] = data, data, data, data
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_accessors[name], _accessors[declarator], _accessors[env], _accessors[interface] = accessors, accessors, accessors, accessors
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_mutators[name], _mutators[declarator], _mutators[env], _mutators[interface] = mutators, mutators, mutators, mutators
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_imports[name], _imports[importer] = imports, imports
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_modifiers[name] = modifier
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_declarators[name] = declarator
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_modules[name] = {env, interface}
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end
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return _modules[name]
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return unpack(_modules[name])
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end
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local frame = CreateFrame 'Frame'
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frame:RegisterEvent 'PLAYER_LOGIN'
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frame:SetScript('OnEvent', function()
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locked = true
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lock_mt.__newindex = function() error 'Cannot change modules after the loading phase.' end
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local count = 0
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local t0 = GetTime()
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for name in _modules do
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local modifier = _modifiers[name]
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local declarator = _declarators[name]
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for import_name in _imports[name] do
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if not _modules[import_name] then error('Invalid import %s in %s.', import_name, name) end
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local data = _data[import_name]
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for key, properties in _metadata[import_name] do
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if mask(PUBLIC, properties) ~= 0 then
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_modifier_properties[modifier] = properties
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modifier[key] = data[key]
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for key, modifiers in _metadata[import_name] do
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if mask(PUBLIC, modifiers) ~= 0 then
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_declarator_state[declarator] = modifiers
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declarator[key] = data[key]
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end
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end
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end
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