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|
-- tolua: container abstract class
-- Written by Waldemar Celes
-- TeCGraf/PUC-Rio
-- Jul 1998
-- $Id: container.lua,v 1.2 2001/11/26 23:00:23 darkgod 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.
-- Container class
-- Represents a container of features to be bound
-- to lua.
classContainer =
{
curr = nil,
_base = classFeature,
}
settag(classContainer,tolua_tag)
-- output tags
function classContainer:decltag ()
push(self)
local i=1
while self[i] do
self[i]:decltag()
i = i+1
end
pop()
end
-- write support code
function classContainer:supcode ()
push(self)
local i=1
while self[i] do
self[i]:supcode()
i = i+1
end
pop()
end
-- Internal container constructor
function _Container (self)
self._base = classContainer
settag(self,tolua_tag)
self.n = 0
self.typedefs = {n=0}
self.lnames = {}
return self
end
-- push container
function push (t)
classContainer.curr = t
end
-- pop container
function pop ()
classContainer.curr = classContainer.curr.parent
end
-- append to current container
function append (t)
return classContainer.curr:append(t)
end
-- append typedef to current container
function appendtypedef (t)
return classContainer.curr:appendtypedef(t)
end
-- substitute typedef
function findtypedef (type)
return classContainer.curr:findtypedef(type)
end
-- check if is typedef
function istypedef (type)
return classContainer.curr:istypedef(type)
end
-- append feature to container
function classContainer:append (t)
self.n = self.n + 1
self[self.n] = t
t.parent = self
end
-- append typedef
function classContainer:appendtypedef (t)
self.typedefs.n = self.typedefs.n + 1
self.typedefs[self.typedefs.n] = t
end
-- determine lua function name overload
function classContainer:overload (lname)
if not self.lnames[lname] then
self.lnames[lname] = 0
else
self.lnames[lname] = self.lnames[lname] + 1
end
return format("%02d",self.lnames[lname])
end
function classContainer:findtypedef (type)
local env = self
while env do
if env.typedefs then
local i=1
while env.typedefs[i] do
if env.typedefs[i].utype == type then
local mod1,type1 = env.typedefs[i].mod,env.typedefs[i].type
local mod2,type2 = findtypedef(type1)
return mod2..' '..mod1,type2
end
i = i+1
end
end
env = env.parent
end
return '',type
end
function classContainer:istypedef (type)
local env = self
while env do
if env.typedefs then
local i=1
while env.typedefs[i] do
if env.typedefs[i].utype == type then
return 1
end
i = i+1
end
end
env = env.parent
end
return nil
end
-- parse chunk
function classContainer:doparse (s)
-- try module
do
local b,e,name,body = strfind(s,"^%s*module%s%s*([_%w][_%w]*)%s*(%b{})%s*")
if b then
_curr_code = strsub(s,b,e)
Module(name,body)
return strsub(s,e+1)
end
end
-- try define
do
local b,e,name = strfind(s,"^%s*#define%s%s*([^%s]*)[^\n]*\n%s*")
if b then
_curr_code = strsub(s,b,e)
Define(name)
return strsub(s,e+1)
end
end
-- try enumerates
do
local b,e,body = strfind(s,"^%s*enum[^{]*(%b{})%s*;?%s*")
if b then
_curr_code = strsub(s,b,e)
Enumerate(body)
return strsub(s,e+1)
end
end
do
local b,e,body,name = strfind(s,"^%s*typedef%s%s*enum[^{]*(%b{})%s*([%w_][^%s]*)%s*;%s*")
if b then
_curr_code = strsub(s,b,e)
Enumerate(body)
Typedef("int "..name)
return strsub(s,e+1)
end
end
-- try operator
do
local b,e,decl,kind,arg,const = strfind(s,"^%s*([_%w][_%w%s%*&]*operator)%s*([^%s][^%s]*)%s*(%b())%s*(c?o?n?s?t?)%s*;%s*")
if b then
_curr_code = strsub(s,b,e)
Operator(decl,kind,arg,const)
return strsub(s,e+1)
end
end
-- try function
do
local b,e,decl,arg,const = strfind(s,"^%s*([~_%w][_@%w%s%*&]*[_%w])%s*(%b())%s*(c?o?n?s?t?)%s*=?%s*0?%s*;%s*")
if not b then
-- try a single letter function name
b,e,decl,arg,const = strfind(s,"^%s*([_%w])%s*(%b())%s*(c?o?n?s?t?)%s*;%s*")
end
if b then
_curr_code = strsub(s,b,e)
Function(decl,arg,const)
return strsub(s,e+1)
end
end
-- try inline function
do
local b,e,decl,arg,const = strfind(s,"^%s*([~_%w][_@%w%s%*&]*[_%w])%s*(%b())%s*(c?o?n?s?t?)%s*%b{}%s*")
if not b then
-- try a single letter function name
b,e,decl,arg,const = strfind(s,"^%s*([_%w])%s*(%b())%s*(c?o?n?s?t?)%s*%b{}%s*")
end
if b then
_curr_code = strsub(s,b,e)
Function(decl,arg,const)
return strsub(s,e+1)
end
end
-- try class
do
local b,e,name,base,body = strfind(s,"^%s*class%s*([_%w][_%w]*)%s*(.-)%s*(%b{})%s*;%s*")
if not b then
b,e,name,base,body = strfind(s,"^%s*struct%s*([_%w][_%w]*)%s*(.-)%s*(%b{})%s*;%s*")
if not b then
base = ''
b,e,body,name = strfind(s,"^%s*typedef%s%s*struct%s%s*[_%w]*%s*(%b{})%s*([_%w][_%w]*)%s*;%s*")
end
end
if b then
if base ~= '' then
local b,e
b,e,base = strfind(base,".-([_%w][_%w]*)$")
end
_curr_code = strsub(s,b,e)
Class(name,base,body)
return strsub(s,e+1)
end
end
-- try typedef
do
local b,e,types = strfind(s,"^%s*typedef%s%s*(.-)%s*;%s*")
if b then
_curr_code = strsub(s,b,e)
Typedef(types)
return strsub(s,e+1)
end
end
-- try variable
do
local b,e,decl = strfind(s,"^%s*([_%w][_@%s%w%d%*&]*[_%w%d])%s*;%s*")
if b then
_curr_code = strsub(s,b,e)
Variable(decl)
return strsub(s,e+1)
end
end
-- try array
do
local b,e,decl = strfind(s,"^%s*([_%w][][_@%s%w%d%*&%-%>]*[]_%w%d])%s*;%s*")
if b then
_curr_code = strsub(s,b,e)
Array(decl)
return strsub(s,e+1)
end
end
-- try code
do
local b,e,code = strfind(s,"^%s*(%b\1\2)")
if b then
Code(strsub(code,2,-2))
return strsub(s,e+1)
end
end
-- try verbatim
do
local b,e,line = strfind(s,"^%s*%$(.-\n)")
if b then
Verbatim(line)
return strsub(s,e+1)
end
end
-- no matching
if gsub(s,"%s%s*","") ~= "" then
_curr_code = s
error("#parse error")
else
return ""
end
end
function classContainer:parse (s)
while s ~= '' do
s = self:doparse(s)
end
end
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