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-- tolua: class class
-- Written by Waldemar Celes
-- TeCGraf/PUC-Rio
-- Jul 1998
-- $Id: class.lua,v 1.1 2009-07-09 13:43:50 fabraham Exp $
-- This code is free software; you can redistribute it and/or modify it.
-- The software provided hereunder is on an "as is" basis, and
-- the author has no obligation to provide maintenance, support, updates,
-- enhancements, or modifications.
-- Class class
-- Represents a class definition.
-- Stores the following fields:
-- name = class name
-- base = class base, if any (only single inheritance is supported)
-- {i} = list of members
classClass = {
classtype = 'class',
name = '',
base = '',
type = '',
btype = '',
ctype = '',
}
classClass.__index = classClass
setmetatable(classClass,classContainer)
-- register class
function classClass:register ()
push(self)
if _collect[self.type] then
output('#ifdef __cplusplus\n')
output(' tolua_cclass(tolua_S,"'..self.lname..'","'..self.type..'","'..self.btype..'",'.._collect[self.type]..');')
output('#else\n')
output(' tolua_cclass(tolua_S,"'..self.lname..'","'..self.type..'","'..self.btype..'",NULL);')
output('#endif\n')
else
output(' tolua_cclass(tolua_S,"'..self.lname..'","'..self.type..'","'..self.btype..'",NULL);')
end
output(' tolua_beginmodule(tolua_S,"'..self.lname..'");')
local i=1
while self[i] do
self[i]:register()
i = i+1
end
output(' tolua_endmodule(tolua_S);')
pop()
end
-- return collection requirement
function classClass:requirecollection (t)
push(self)
local r = false
local i=1
while self[i] do
r = self[i]:requirecollection(t) or r
i = i+1
end
pop()
-- only class that exports destructor can be appropriately collected
if self._delete then
t[self.type] = "tolua_collect_" .. gsub(self.type,"::","_")
r = true
end
return r
end
-- output tags
function classClass:decltype ()
push(self)
self.type = regtype(self.name)
self.btype = typevar(self.base)
self.ctype = 'const '..self.type
local i=1
while self[i] do
self[i]:decltype()
i = i+1
end
pop()
end
-- Print method
function classClass:print (ident,close)
print(ident.."Class{")
print(ident.." name = '"..self.name.."',")
print(ident.." base = '"..self.base.."';")
print(ident.." lname = '"..self.lname.."',")
print(ident.." type = '"..self.type.."',")
print(ident.." btype = '"..self.btype.."',")
print(ident.." ctype = '"..self.ctype.."',")
local i=1
while self[i] do
self[i]:print(ident.." ",",")
i = i+1
end
print(ident.."}"..close)
end
-- Internal constructor
function _Class (t)
setmetatable(t,classClass)
t:buildnames()
append(t)
return t
end
-- Constructor
-- Expects the name, the base and the body of the class.
function Class (n,p,b)
local c = _Class(_Container{name=n, base=p})
push(c)
c:parse(strsub(b,2,strlen(b)-1)) -- eliminate braces
pop()
end
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