228 lines
6.3 KiB
Lua
228 lines
6.3 KiB
Lua
-- tolua: array class
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-- Written by Waldemar Celes
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-- TeCGraf/PUC-Rio
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-- Jul 1999
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-- $Id: array.lua 1141 2006-05-18 23:58:45Z lindquist $
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-- This code is free software; you can redistribute it and/or modify it.
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-- The software provided hereunder is on an "as is" basis, and
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-- the author has no obligation to provide maintenance, support, updates,
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-- enhancements, or modifications.
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-- Array class
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-- Represents a extern array variable or a public member of a class.
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-- Stores all fields present in a declaration.
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classArray = {
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}
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classArray.__index = classArray
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setmetatable(classArray,classDeclaration)
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-- Print method
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function classArray:print (ident,close)
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print(ident.."Array{")
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print(ident.." mod = '"..self.mod.."',")
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print(ident.." type = '"..self.type.."',")
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print(ident.." ptr = '"..self.ptr.."',")
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print(ident.." name = '"..self.name.."',")
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print(ident.." def = '"..self.def.."',")
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print(ident.." dim = '"..self.dim.."',")
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print(ident.." ret = '"..self.ret.."',")
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print(ident.."}"..close)
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end
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-- check if it is a variable
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function classArray:isvariable ()
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return true
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end
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-- get variable value
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function classArray:getvalue (class,static)
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if class and static then
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return class..'::'..self.name..'[tolua_index]'
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elseif class then
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return 'self->'..self.name..'[tolua_index]'
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else
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return self.name..'[tolua_index]'
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end
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end
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-- Write binding functions
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function classArray:supcode ()
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local class = self:inclass()
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-- get function ------------------------------------------------
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if class then
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output("/* get function:",self.name," of class ",class," */")
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else
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output("/* get function:",self.name," */")
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end
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self.cgetname = self:cfuncname("tolua_get")
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output("#ifndef TOLUA_DISABLE_"..self.cgetname)
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output("\nstatic int",self.cgetname,"(lua_State* tolua_S)")
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output("{")
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output(" int tolua_index;")
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-- declare self, if the case
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local _,_,static = strfind(self.mod,'^%s*(static)')
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if class and static==nil then
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output(' ',self.parent.type,'*','self;')
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output(' lua_pushstring(tolua_S,".self");')
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output(' lua_rawget(tolua_S,1);')
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output(' self = ')
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output('(',self.parent.type,'*) ')
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output('lua_touserdata(tolua_S,-1);')
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elseif static then
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_,_,self.mod = strfind(self.mod,'^%s*static%s%s*(.*)')
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end
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-- check index
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output('#ifndef TOLUA_RELEASE\n')
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output(' {')
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output(' tolua_Error tolua_err;')
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output(' if (!tolua_isnumber(tolua_S,2,0,&tolua_err))')
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output(' tolua_error(tolua_S,(char*)"#vinvalid type in array indexing.",&tolua_err);')
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output(' }')
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output('#endif\n')
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if flags['1'] then -- for compatibility with tolua5 ?
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output(' tolua_index = (int)tolua_tonumber(tolua_S,2,0)-1;')
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else
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output(' tolua_index = (int)tolua_tonumber(tolua_S,2,0);')
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end
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output('#ifndef TOLUA_RELEASE\n')
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if self.dim and self.dim ~= '' then
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output(' if (tolua_index<0 || tolua_index>='..self.dim..')')
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else
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output(' if (tolua_index<0)')
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end
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output(' tolua_error(tolua_S,(char*)"array indexing out of range.",NULL);')
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output('#endif\n')
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-- return value
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local t,ct = isbasic(self.type)
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if t then
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output(' tolua_push'..t..'(tolua_S,(',ct,')'..self:getvalue(class,static)..');')
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else
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t = self.type
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if self.ptr == '&' or self.ptr == '' then
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output(' tolua_pushusertype(tolua_S,(void*)&'..self:getvalue(class,static)..',"',t,'");')
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else
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output(' tolua_pushusertype(tolua_S,(void*)'..self:getvalue(class,static)..',"',t,'");')
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end
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end
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output(' return 1;')
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output('}')
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output('#endif //#ifndef TOLUA_DISABLE\n')
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output('\n')
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-- set function ------------------------------------------------
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if not strfind(self.type,'const') then
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if class then
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output("/* set function:",self.name," of class ",class," */")
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else
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output("/* set function:",self.name," */")
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end
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self.csetname = self:cfuncname("tolua_set")
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output("#ifndef TOLUA_DISABLE_"..self.csetname)
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output("\nstatic int",self.csetname,"(lua_State* tolua_S)")
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output("{")
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-- declare index
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output(' int tolua_index;')
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-- declare self, if the case
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local _,_,static = strfind(self.mod,'^%s*(static)')
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if class and static==nil then
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output(' ',self.parent.type,'*','self;')
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output(' lua_pushstring(tolua_S,".self");')
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output(' lua_rawget(tolua_S,1);')
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output(' self = ')
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output('(',self.parent.type,'*) ')
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output('lua_touserdata(tolua_S,-1);')
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elseif static then
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_,_,self.mod = strfind(self.mod,'^%s*static%s%s*(.*)')
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end
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-- check index
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output('#ifndef TOLUA_RELEASE\n')
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output(' {')
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output(' tolua_Error tolua_err;')
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output(' if (!tolua_isnumber(tolua_S,2,0,&tolua_err))')
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output(' tolua_error(tolua_S,(char*)"#vinvalid type in array indexing.",&tolua_err);')
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output(' }')
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output('#endif\n')
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if flags['1'] then -- for compatibility with tolua5 ?
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output(' tolua_index = (int)tolua_tonumber(tolua_S,2,0)-1;')
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else
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output(' tolua_index = (int)tolua_tonumber(tolua_S,2,0);')
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end
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output('#ifndef TOLUA_RELEASE\n')
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if self.dim and self.dim ~= '' then
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output(' if (tolua_index<0 || tolua_index>='..self.dim..')')
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else
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output(' if (tolua_index<0)')
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end
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output(' tolua_error(tolua_S,(char*)"array indexing out of range.",NULL);')
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output('#endif\n')
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-- assign value
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local ptr = ''
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if self.ptr~='' then ptr = '*' end
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output(' ')
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if class and static then
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output(class..'::'..self.name..'[tolua_index]')
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elseif class then
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output('self->'..self.name..'[tolua_index]')
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else
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output(self.name..'[tolua_index]')
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end
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local t = isbasic(self.type)
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output(' = ')
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if not t and ptr=='' then output('*') end
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output('((',self.mod,self.type)
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if not t then
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output('*')
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end
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output(') ')
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local def = 0
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if self.def ~= '' then def = self.def end
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if t then
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output('tolua_to'..t,'(tolua_S,3,',def,'));')
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else
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output('tolua_tousertype(tolua_S,3,',def,'));')
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end
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output(' return 0;')
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output('}')
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output('#endif //#ifndef TOLUA_DISABLE\n')
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output('\n')
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end
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end
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function classArray:register (pre)
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pre = pre or ''
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if self.csetname then
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output(pre..'tolua_array(tolua_S,"'..self.lname..'",'..self.cgetname..','..self.csetname..');')
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else
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output(pre..'tolua_array(tolua_S,"'..self.lname..'",'..self.cgetname..',NULL);')
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end
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end
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-- Internal constructor
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function _Array (t)
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setmetatable(t,classArray)
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append(t)
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return t
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end
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-- Constructor
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-- Expects a string representing the variable declaration.
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function Array (s)
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return _Array (Declaration(s,'var'))
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end
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