1 files changed, 220 insertions, 0 deletions

diff --git a/tolua++-1.0.93/src/bin/lua/operator.lua b/tolua++-1.0.93/src/bin/lua/operator.lua
new file mode 100644
index 000000000..675027cd7
--- /dev/null
+++ b/tolua++-1.0.93/src/bin/lua/operator.lua
@@ -0,0 +1,220 @@
+-- tolua: operator class
+-- Written by Waldemar Celes
+-- TeCGraf/PUC-Rio
+-- Jul 1998
+-- $Id: $
+
+-- 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.
+
+
+-- Operator class
+-- Represents an operator function or a class operator method.
+-- It stores the same fields as functions do plus:
+--  kind = set of character representing the operator (as it appers in C++ code)
+classOperator = {
+ kind = '',
+}
+classOperator.__index = classOperator
+setmetatable(classOperator,classFunction)
+
+-- table to transform operator kind into the appropriate tag method name
+_TM = {['+'] = 'add',
+       ['-'] = 'sub',
+       ['*'] = 'mul',
+       ['/'] = 'div',
+       ['<'] = 'lt',
+       ['<='] = 'le',
+       ['=='] = 'eq',
+       ['[]'] = 'geti',
+       ['&[]'] = 'seti',
+       --['->'] = 'flechita',
+      }
+
+
+-- Print method
+function classOperator:print (ident,close)
+ print(ident.."Operator{")
+ print(ident.." kind  = '"..self.kind.."',")
+ print(ident.." mod  = '"..self.mod.."',")
+ print(ident.." type = '"..self.type.."',")
+ print(ident.." ptr  = '"..self.ptr.."',")
+ print(ident.." name = '"..self.name.."',")
+ print(ident.." const = '"..self.const.."',")
+ print(ident.." cname = '"..self.cname.."',")
+ print(ident.." lname = '"..self.lname.."',")
+ print(ident.." args = {")
+ local i=1
+ while self.args[i] do
+  self.args[i]:print(ident.."  ",",")
+  i = i+1
+ end
+ print(ident.." }")
+ print(ident.."}"..close)
+end
+
+function classOperator:supcode_tmp()
+
+	if not _TM[self.kind] then
+		return classFunction.supcode(self)
+	end
+
+	-- no overload, no parameters, always inclass
+	output("/* method:",self.name," of class ",self:inclass()," */")
+
+	output("#ifndef TOLUA_DISABLE_"..self.cname)
+	output("\nstatic int",self.cname,"(lua_State* tolua_S)")
+
+	if overload < 0 then
+	 output('#ifndef TOLUA_RELEASE\n')
+	end
+	output(' tolua_Error tolua_err;')
+	output(' if (\n')
+	-- check self
+	local is_func = get_is_function(self.parent.type)
+	output('     !'..is_func..'(tolua_S,1,"'..self.parent.type..'",0,&tolua_err) ||\n')
+	output('     !tolua_isnoobj(tolua_S,2,&tolua_err)\n )')
+	output('  goto tolua_lerror;')
+
+	output(' else\n')
+	output('#endif\n') -- tolua_release
+	output(' {')
+
+	-- declare self
+	output(' ',self.const,self.parent.type,'*','self = ')
+	output('(',self.const,self.parent.type,'*) ')
+	local to_func = get_to_func(self.parent.type)
+	output(to_func,'(tolua_S,1,0);')
+
+	-- check self
+	output('#ifndef TOLUA_RELEASE\n')
+	output('  if (!self) tolua_error(tolua_S,"'..output_error_hook("invalid \'self\' in function \'%s\'", self.name)..'",NULL);');
+	output('#endif\n')
+
+	-- cast self
+	output('  ',self.mod,self.type,self.ptr,'tolua_ret = ')
+	output('(',self.mod,self.type,self.ptr,')(*self);')
+
+	-- return value
+	local t,ct = isbasic(self.type)
+	if t then
+		output('   tolua_push'..t..'(tolua_S,(',ct,')tolua_ret);')
+	else
+		t = self.type
+		local push_func = get_push_function(t)
+		new_t = string.gsub(t, "const%s+", "")
+		if self.ptr == '' then
+			output('   {')
+			output('#ifdef __cplusplus\n')
+			output('    void* tolua_obj = Mtolua_new((',new_t,')(tolua_ret));')
+			output('    ',push_func,'(tolua_S,tolua_obj,"',t,'");')
+			output('    tolua_register_gc(tolua_S,lua_gettop(tolua_S));')
+			output('#else\n')
+			output('    void* tolua_obj = tolua_copy(tolua_S,(void*)&tolua_ret,sizeof(',t,'));')
+			output('    ',push_func,'(tolua_S,tolua_obj,"',t,'");')
+			output('    tolua_register_gc(tolua_S,lua_gettop(tolua_S));')
+			output('#endif\n')
+			output('   }')
+		elseif self.ptr == '&' then
+			output('   ',push_func,'(tolua_S,(void*)&tolua_ret,"',t,'");')
+		else
+			if local_constructor then
+				output('   ',push_func,'(tolua_S,(void *)tolua_ret,"',t,'");')
+				output('    tolua_register_gc(tolua_S,lua_gettop(tolua_S));')
+			else
+				output('   ',push_func,'(tolua_S,(void*)tolua_ret,"',t,'");')
+			end
+		end
+	end
+
+	output('  }')
+	output(' return 1;')
+
+	output('#ifndef TOLUA_RELEASE\n')
+	output('tolua_lerror:\n')
+	output(' tolua_error(tolua_S,"'..output_error_hook("#ferror in function \'%s\'.", self.lname)..'",&tolua_err);')
+	output(' return 0;')
+	output('#endif\n')
+
+
+	output('}')
+	output('#endif //#ifndef TOLUA_DISABLE\n')
+	output('\n')
+end
+
+-- Internal constructor
+function _Operator (t)
+ setmetatable(t,classOperator)
+
+ if t.const ~= 'const' and t.const ~= '' then
+  error("#invalid 'const' specification")
+ end
+
+ append(t)
+ if not t:inclass() then
+  error("#operator can only be defined as class member")
+ end
+
+ --t.name = t.name .. "_" .. (_TM[t.kind] or t.kind)
+ t.cname = t:cfuncname("tolua")..t:overload(t)
+ t.name = "operator" .. t.kind  -- set appropriate calling name
+ return t
+end
+
+-- Constructor
+function Operator (d,k,a,c)
+
+	local op_k = string.gsub(k, "^%s*", "")
+	op_k = string.gsub(k, "%s*$", "")
+	--if string.find(k, "^[%w_:%d<>%*%&]+$") then
+	if d == "operator" and k ~= '' then
+
+		d = k.." operator"
+	elseif not _TM[op_k] then
+
+		if flags['W'] then
+			error("tolua: no support for operator" .. f.kind)
+		else
+			warning("No support for operator "..op_k..", ignoring")
+			return nil
+		end
+	end
+
+	local ref = ''
+ local t = split_c_tokens(strsub(a,2,strlen(a)-1),',') -- eliminate braces
+ local i=1
+ local l = {n=0}
+ while t[i] do
+  l.n = l.n+1
+  l[l.n] = Declaration(t[i],'var')
+  i = i+1
+ end
+ if k == '[]' then
+	 local _
+	 _, _, ref = strfind(d,'(&)')
+  d = gsub(d,'&','')
+ elseif k=='&[]' then
+  l.n = l.n+1
+  l[l.n] = Declaration(d,'var')
+  l[l.n].name = 'tolua_value'
+ end
+ local f = Declaration(d,'func')
+ if k == '[]' and (l[1]==nil or isbasic(l[1].type)~='number') then
+  error('operator[] can only be defined for numeric index.')
+ end
+ f.args = l
+ f.const = c
+ f.kind = op_k
+ f.lname = "."..(_TM[f.kind] or f.kind)
+ if not _TM[f.kind] then
+ 	f.cast_operator = true
+ end
+ if f.kind == '[]' and ref=='&' and f.const~='const' then
+  Operator(d,'&'..k,a,c) 	-- create correspoding set operator
+ end
+ return _Operator(f)
+end
+
+