772 lines
17 KiB
Lua
772 lines
17 KiB
Lua
-- tolua: container abstract class
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-- Written by Waldemar Celes
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-- TeCGraf/PUC-Rio
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-- Jul 1998
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-- $Id: container.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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-- table to store namespaced typedefs/enums in global scope
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global_typedefs = {}
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global_enums = {}
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-- Container class
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-- Represents a container of features to be bound
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-- to lua.
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classContainer =
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{
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curr = nil,
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}
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classContainer.__index = classContainer
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setmetatable(classContainer,classFeature)
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-- output tags
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function classContainer:decltype ()
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push(self)
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local i=1
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while self[i] do
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self[i]:decltype()
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i = i+1
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end
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pop()
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end
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-- write support code
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function classContainer:supcode ()
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if not self:check_public_access() then
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return
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end
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push(self)
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local i=1
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while self[i] do
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if self[i]:check_public_access() then
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self[i]:supcode()
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end
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i = i+1
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end
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pop()
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end
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function classContainer:hasvar ()
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local i=1
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while self[i] do
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if self[i]:isvariable() then
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return 1
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end
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i = i+1
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end
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return 0
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end
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-- Internal container constructor
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function _Container (self)
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setmetatable(self,classContainer)
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self.n = 0
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self.typedefs = {tolua_n=0}
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self.usertypes = {}
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self.enums = {tolua_n=0}
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self.lnames = {}
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return self
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end
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-- push container
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function push (t)
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t.prox = classContainer.curr
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classContainer.curr = t
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end
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-- pop container
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function pop ()
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--print("name",classContainer.curr.name)
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--foreach(classContainer.curr.usertypes,print)
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--print("______________")
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classContainer.curr = classContainer.curr.prox
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end
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-- get current namespace
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function getcurrnamespace ()
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return getnamespace(classContainer.curr)
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end
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-- append to current container
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function append (t)
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return classContainer.curr:append(t)
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end
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-- append typedef to current container
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function appendtypedef (t)
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return classContainer.curr:appendtypedef(t)
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end
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-- append usertype to current container
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function appendusertype (t)
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return classContainer.curr:appendusertype(t)
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end
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-- append enum to current container
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function appendenum (t)
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return classContainer.curr:appendenum(t)
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end
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-- substitute typedef
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function applytypedef (mod,type)
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return classContainer.curr:applytypedef(mod,type)
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end
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-- check if is type
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function findtype (type)
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local t = classContainer.curr:findtype(type)
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return t
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end
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-- check if is typedef
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function istypedef (type)
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return classContainer.curr:istypedef(type)
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end
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-- get fulltype (with namespace)
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function fulltype (t)
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local curr = classContainer.curr
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while curr do
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if curr then
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if curr.typedefs and curr.typedefs[t] then
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return curr.typedefs[t]
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elseif curr.usertypes and curr.usertypes[t] then
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return curr.usertypes[t]
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end
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end
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curr = curr.prox
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end
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return t
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end
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-- checks if it requires collection
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function classContainer:requirecollection (t)
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push(self)
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local i=1
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local r = false
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while self[i] do
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r = self[i]:requirecollection(t) or r
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i = i+1
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end
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pop()
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return r
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end
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-- get namesapce
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function getnamespace (curr)
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local namespace = ''
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while curr do
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if curr and
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( curr.classtype == 'class' or curr.classtype == 'namespace')
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then
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namespace = (curr.original_name or curr.name) .. '::' .. namespace
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--namespace = curr.name .. '::' .. namespace
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end
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curr = curr.prox
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end
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return namespace
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end
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-- get namespace (only namespace)
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function getonlynamespace ()
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local curr = classContainer.curr
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local namespace = ''
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while curr do
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if curr.classtype == 'class' then
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return namespace
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elseif curr.classtype == 'namespace' then
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namespace = curr.name .. '::' .. namespace
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end
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curr = curr.prox
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end
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return namespace
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end
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-- check if is enum
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function isenum (type)
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return classContainer.curr:isenum(type)
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end
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-- append feature to container
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function classContainer:append (t)
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self.n = self.n + 1
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self[self.n] = t
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t.parent = self
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end
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-- append typedef
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function classContainer:appendtypedef (t)
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local namespace = getnamespace(classContainer.curr)
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self.typedefs.tolua_n = self.typedefs.tolua_n + 1
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self.typedefs[self.typedefs.tolua_n] = t
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self.typedefs[t.utype] = namespace .. t.utype
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global_typedefs[namespace..t.utype] = t
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t.ftype = findtype(t.type) or t.type
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--print("appending typedef "..t.utype.." as "..namespace..t.utype.." with ftype "..t.ftype)
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append_global_type(namespace..t.utype)
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if t.ftype and isenum(t.ftype) then
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global_enums[namespace..t.utype] = true
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end
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end
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-- append usertype: return full type
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function classContainer:appendusertype (t)
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local container
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if t == (self.original_name or self.name) then
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container = self.prox
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else
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container = self
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end
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local ft = getnamespace(container) .. t
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container.usertypes[t] = ft
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_usertype[ft] = ft
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return ft
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end
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-- append enum
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function classContainer:appendenum (t)
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local namespace = getnamespace(classContainer.curr)
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self.enums.tolua_n = self.enums.tolua_n + 1
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self.enums[self.enums.tolua_n] = t
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global_enums[namespace..t.name] = t
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end
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-- determine lua function name overload
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function classContainer:overload (lname)
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if not self.lnames[lname] then
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self.lnames[lname] = 0
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else
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self.lnames[lname] = self.lnames[lname] + 1
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end
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return format("%02d",self.lnames[lname])
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end
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-- applies typedef: returns the 'the facto' modifier and type
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function classContainer:applytypedef (mod,type)
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if global_typedefs[type] then
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--print("found typedef "..global_typedefs[type].type)
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local mod1, type1 = global_typedefs[type].mod, global_typedefs[type].ftype
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local mod2, type2 = applytypedef(mod.." "..mod1, type1)
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--return mod2 .. ' ' .. mod1, type2
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return mod2, type2
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end
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do return mod,type end
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end
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-- check if it is a typedef
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function classContainer:istypedef (type)
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local env = self
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while env do
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if env.typedefs then
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local i=1
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while env.typedefs[i] do
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if env.typedefs[i].utype == type then
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return type
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end
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i = i+1
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end
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end
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env = env.parent
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end
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return nil
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end
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function find_enum_var(var)
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if tonumber(var) then return var end
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local c = classContainer.curr
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while c do
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local ns = getnamespace(c)
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for k,v in pairs(_global_enums) do
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if match_type(var, v, ns) then
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return v
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end
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end
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if c.base and c.base ~= '' then
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c = _global_classes[c:findtype(c.base)]
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else
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c = nil
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end
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end
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return var
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end
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-- check if is a registered type: return full type or nil
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function classContainer:findtype (t)
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t = string.gsub(t, "=.*", "")
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if _basic[t] then
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return t
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end
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local _,_,em = string.find(t, "([&%*])%s*$")
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t = string.gsub(t, "%s*([&%*])%s*$", "")
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p = self
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while p and type(p)=='table' do
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local st = getnamespace(p)
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for i=_global_types.n,1,-1 do -- in reverse order
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if match_type(t, _global_types[i], st) then
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return _global_types[i]..(em or "")
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end
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end
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if p.base and p.base ~= '' and p.base ~= t then
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--print("type is "..t..", p is "..p.base.." self.type is "..self.type.." self.name is "..self.name)
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p = _global_classes[p:findtype(p.base)]
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else
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p = nil
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end
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end
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return nil
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end
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function append_global_type(t, class)
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_global_types.n = _global_types.n +1
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_global_types[_global_types.n] = t
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_global_types_hash[t] = 1
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if class then append_class_type(t, class) end
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end
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function append_class_type(t,class)
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if _global_classes[t] then
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class.flags = _global_classes[t].flags
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class.lnames = _global_classes[t].lnames
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if _global_classes[t].base and (_global_classes[t].base ~= '') then
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class.base = _global_classes[t].base or class.base
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end
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end
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_global_classes[t] = class
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class.flags = class.flags or {}
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end
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function match_type(childtype, regtype, st)
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--print("findtype "..childtype..", "..regtype..", "..st)
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local b,e = string.find(regtype, childtype, -string.len(childtype), true)
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if b then
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if e == string.len(regtype) and
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(b == 1 or (string.sub(regtype, b-1, b-1) == ':' and
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string.sub(regtype, 1, b-1) == string.sub(st, 1, b-1))) then
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return true
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end
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end
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return false
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end
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function findtype_on_childs(self, t)
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local tchild
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if self.classtype == 'class' or self.classtype == 'namespace' then
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for k,v in ipairs(self) do
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if v.classtype == 'class' or v.classtype == 'namespace' then
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if v.typedefs and v.typedefs[t] then
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return v.typedefs[t]
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elseif v.usertypes and v.usertypes[t] then
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return v.usertypes[t]
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end
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tchild = findtype_on_childs(v, t)
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if tchild then return tchild end
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end
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end
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end
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return nil
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end
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function classContainer:isenum (type)
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if global_enums[type] then
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return type
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else
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return false
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end
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local basetype = gsub(type,"^.*::","")
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local env = self
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while env do
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if env.enums then
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local i=1
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while env.enums[i] do
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if env.enums[i].name == basetype then
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return true
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end
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i = i+1
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end
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end
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env = env.parent
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end
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return false
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end
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methodisvirtual = false -- a global
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-- parse chunk
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function classContainer:doparse (s)
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--print ("parse "..s)
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-- try the parser hook
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do
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local sub = parser_hook(s)
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if sub then
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return sub
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end
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end
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-- try the null statement
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do
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local b,e,code = string.find(s, "^%s*;")
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if b then
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return strsub(s,e+1)
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end
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end
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-- try empty verbatim line
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do
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local b,e,code = string.find(s, "^%s*$\n")
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if b then
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return strsub(s,e+1)
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end
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end
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-- try Lua code
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do
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local b,e,code = strfind(s,"^%s*(%b\1\2)")
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if b then
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Code(strsub(code,2,-2))
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return strsub(s,e+1)
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end
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end
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-- try C code
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do
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local b,e,code = strfind(s,"^%s*(%b\3\4)")
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if b then
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code = '{'..strsub(code,2,-2)..'\n}\n'
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Verbatim(code,'r') -- verbatim code for 'r'egister fragment
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return strsub(s,e+1)
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end
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end
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-- try C code for preamble section
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do
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local b,e,code = string.find(s, "^%s*(%b\5\6)")
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if b then
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code = string.sub(code, 2, -2).."\n"
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Verbatim(code, '')
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return string.sub(s, e+1)
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end
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end
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-- try default_property directive
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do
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local b,e,ptype = strfind(s, "^%s*TOLUA_PROPERTY_TYPE%s*%(+%s*([^%)%s]*)%s*%)+%s*;?")
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if b then
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if not ptype or ptype == "" then
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ptype = "default"
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end
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self:set_property_type(ptype)
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return strsub(s, e+1)
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end
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end
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-- try protected_destructor directive
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do
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local b,e = string.find(s, "^%s*TOLUA_PROTECTED_DESTRUCTOR%s*;?")
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if b then
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if self.set_protected_destructor then
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self:set_protected_destructor(true)
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end
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return strsub(s, e+1)
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end
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end
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-- try 'extern' keyword
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do
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local b,e = string.find(s, "^%s*extern%s+")
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if b then
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-- do nothing
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return strsub(s, e+1)
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end
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end
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-- try 'virtual' keyworkd
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do
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local b,e = string.find(s, "^%s*virtual%s+")
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if b then
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methodisvirtual = true
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return strsub(s, e+1)
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end
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end
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-- try labels (public, private, etc)
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do
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local b,e = string.find(s, "^%s*%w*%s*:[^:]")
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if b then
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return strsub(s, e) -- preserve the [^:]
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end
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end
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-- try module
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do
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local b,e,name,body = strfind(s,"^%s*module%s%s*([_%w][_%w]*)%s*(%b{})%s*")
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if b then
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_curr_code = strsub(s,b,e)
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Module(name,body)
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return strsub(s,e+1)
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end
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end
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-- try namesapce
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do
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local b,e,name,body = strfind(s,"^%s*namespace%s%s*([_%w][_%w]*)%s*(%b{})%s*;?")
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if b then
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_curr_code = strsub(s,b,e)
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Namespace(name,body)
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return strsub(s,e+1)
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end
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end
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-- try define
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do
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local b,e,name = strfind(s,"^%s*#define%s%s*([^%s]*)[^\n]*\n%s*")
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if b then
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_curr_code = strsub(s,b,e)
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Define(name)
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return strsub(s,e+1)
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end
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end
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-- try enumerates
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do
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local b,e,name,body,varname = strfind(s,"^%s*enum%s+(%S*)%s*(%b{})%s*([^%s;]*)%s*;?%s*")
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if b then
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--error("#Sorry, declaration of enums and variables on the same statement is not supported.\nDeclare your variable separately (example: '"..name.." "..varname..";')")
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_curr_code = strsub(s,b,e)
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Enumerate(name,body,varname)
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return strsub(s,e+1)
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end
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end
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-- do
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-- local b,e,name,body = strfind(s,"^%s*enum%s+(%S*)%s*(%b{})%s*;?%s*")
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-- if b then
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-- _curr_code = strsub(s,b,e)
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-- Enumerate(name,body)
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-- return strsub(s,e+1)
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-- end
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-- end
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do
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local b,e,body,name = strfind(s,"^%s*typedef%s+enum[^{]*(%b{})%s*([%w_][^%s]*)%s*;%s*")
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if b then
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_curr_code = strsub(s,b,e)
|
|
Enumerate(name,body)
|
|
return strsub(s,e+1)
|
|
end
|
|
end
|
|
|
|
-- try operator
|
|
do
|
|
local b,e,decl,kind,arg,const = strfind(s,"^%s*([_%w][_%w%s%*&:<>,]-%s+operator)%s*([^%s][^%s]*)%s*(%b())%s*(c?o?n?s?t?)%s*;%s*")
|
|
if not b then
|
|
-- try inline
|
|
b,e,decl,kind,arg,const = strfind(s,"^%s*([_%w][_%w%s%*&:<>,]-%s+operator)%s*([^%s][^%s]*)%s*(%b())%s*(c?o?n?s?t?)[%s\n]*%b{}%s*;?%s*")
|
|
end
|
|
if not b then
|
|
-- try cast operator
|
|
b,e,decl,kind,arg,const = strfind(s, "^%s*(operator)%s+([%w_:%d<>%*%&%s]+)%s*(%b())%s*(c?o?n?s?t?)");
|
|
if b then
|
|
local _,ie = string.find(s, "^%s*%b{}", e+1)
|
|
if ie then
|
|
e = ie
|
|
end
|
|
end
|
|
end
|
|
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*")
|
|
local b,e,decl,arg,const,virt = strfind(s,"^%s*([^%(\n]+)%s*(%b())%s*(c?o?n?s?t?)%s*(=?%s*0?)%s*;%s*")
|
|
if not b then
|
|
-- try function with template
|
|
b,e,decl,arg,const = strfind(s,"^%s*([~_%w][_@%w%s%*&:<>]*[_%w]%b<>)%s*(%b())%s*(c?o?n?s?t?)%s*=?%s*0?%s*;%s*")
|
|
end
|
|
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
|
|
if virt and string.find(virt, "[=0]") then
|
|
if self.flags then
|
|
self.flags.pure_virtual = true
|
|
end
|
|
end
|
|
_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*([^%(\n]+)%s*(%b())%s*(c?o?n?s?t?)[^;{]*%b{}%s*;?%s*")
|
|
--local b,e,decl,arg,const = strfind(s,"^%s*([~_%w][_@%w%s%*&:<>]*[_%w>])%s*(%b())%s*(c?o?n?s?t?)[^;]*%b{}%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?).-%b{}%s*;?%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
|
|
base = '' body = ''
|
|
b,e,name = strfind(s,"^%s*class%s*([_%w][_%w@]*)%s*;") -- dummy class
|
|
if not b then
|
|
b,e,name = strfind(s,"^%s*struct%s*([_%w][_%w@]*)%s*;") -- dummy struct
|
|
if not b then
|
|
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
|
|
b,e,name,base,body = strfind(s,"^%s*union%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
|
|
end
|
|
end
|
|
end
|
|
if b then
|
|
if base ~= '' then
|
|
base = string.gsub(base, "^%s*:%s*", "")
|
|
base = string.gsub(base, "%s*public%s*", "")
|
|
base = split(base, ",")
|
|
--local b,e
|
|
--b,e,base = strfind(base,".-([_%w][_%w<>,:]*)$")
|
|
else
|
|
base = {}
|
|
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)
|
|
|
|
local list = split_c_tokens(decl, ",")
|
|
Variable(list[1])
|
|
if list.n > 1 then
|
|
local _,_,type = strfind(list[1], "(.-)%s+([^%s]*)$");
|
|
|
|
local i =2;
|
|
while list[i] do
|
|
Variable(type.." "..list[i])
|
|
i=i+1
|
|
end
|
|
end
|
|
--Variable(decl)
|
|
return strsub(s,e+1)
|
|
end
|
|
end
|
|
|
|
-- try string
|
|
do
|
|
local b,e,decl = strfind(s,"^%s*([_%w]?[_%s%w%d]-char%s+[_@%w%d]*%s*%[%s*%S+%s*%])%s*;%s*")
|
|
if b then
|
|
_curr_code = strsub(s,b,e)
|
|
Variable(decl)
|
|
return strsub(s,e+1)
|
|
end
|
|
end
|
|
|
|
-- try array
|
|
do
|
|
local b,e,decl = strfind(s,"^%s*([_%w][][_@%s%w%d%*&:]*[]_%w%d])%s*;%s*")
|
|
if b then
|
|
_curr_code = strsub(s,b,e)
|
|
Array(decl)
|
|
return strsub(s,e+1)
|
|
end
|
|
end
|
|
|
|
-- no matching
|
|
if gsub(s,"%s%s*","") ~= "" then
|
|
_curr_code = s
|
|
error("#parse error")
|
|
else
|
|
return ""
|
|
end
|
|
|
|
end
|
|
|
|
function classContainer:parse (s)
|
|
|
|
self.curr_member_access = nil
|
|
|
|
while s ~= '' do
|
|
s = self:doparse(s)
|
|
methodisvirtual = false
|
|
end
|
|
end
|
|
|
|
|
|
-- property types
|
|
|
|
function get_property_type()
|
|
|
|
return classContainer.curr:get_property_type()
|
|
end
|
|
|
|
function classContainer:set_property_type(ptype)
|
|
ptype = string.gsub(ptype, "^%s*", "")
|
|
ptype = string.gsub(ptype, "%s*$", "")
|
|
|
|
self.property_type = ptype
|
|
end
|
|
|
|
function classContainer:get_property_type()
|
|
return self.property_type or (self.parent and self.parent:get_property_type()) or "default"
|
|
end
|