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authorManoj Srivastava <srivasta@debian.org>2020-05-22 19:57:41 -0700
committerManoj Srivastava <srivasta@debian.org>2020-05-22 20:02:19 -0700
commitc3d2579ad8d7eb33059aa8fdbaf5b564411a57f2 (patch)
tree1570cda0676fdcf4171a69a7fe313c1b89a52b0c /src/lua/tolua_tm.c
parent986b7742bf244b4073ecca0723615f70be8a1ab6 (diff)
parent4e9b9c402ed95bf9a17fd6d795bc49bb4128a6fa (diff)
Merge branch 'upstream' into debian-cmake-fixes
Diffstat (limited to 'src/lua/tolua_tm.c')
-rw-r--r--src/lua/tolua_tm.c585
1 files changed, 0 insertions, 585 deletions
diff --git a/src/lua/tolua_tm.c b/src/lua/tolua_tm.c
deleted file mode 100644
index 8fd7b28d..00000000
--- a/src/lua/tolua_tm.c
+++ /dev/null
@@ -1,585 +0,0 @@
-/* tolua: tag methods
-** Support code for Lua bindings.
-** Written by Waldemar Celes
-** TeCGraf/PUC-Rio
-** Jul 1998
-** $Id: tolua_tm.c,v 1.2 2001/11/26 23:00:27 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.
-*/
-
-#include "tolua.h"
-#include "tolua_tm.h"
-#include "tolua_tt.h"
-#include "tolua_rg.h"
-
-#include <string.h>
-
-
-
-/* Global tables created in Lua registry:
- tolua_tbl_class: indexed by instance tags, stores the class tables.
- tolua_tbl_clone: indexed by memory address, stores the tag indicanting
- it is a clone.
- tolua_tbl_mate: indexed by memory address, stores the associate instance
- table.
-
- General tags stored in Lua registry:
- tolua_tag_global;
- tolua_tag_module;
- tolua_tag_class;
- tolua_tag_instance;
- tolua_tag_linstance;
- tolua_tag_indirect;
-*/
-
-/* internal function prototype */
-static void setmethods (lua_State* L);
-
-static void settag (lua_State* L, int lo, char* tag_registry_field)
-{
- toluaI_getregistry(L,tag_registry_field);
- lua_pushvalue(L,lo);
- lua_settag(L,(int)lua_tonumber(L,-2));
- lua_pop(L,2);
-}
-
-void toluaI_tm_global (lua_State* L, int lo)
-{
- settag(L,lo,"tolua_tag_global");
-}
-
-void toluaI_tm_module (lua_State* L, int lo)
-{
- settag(L,lo,"tolua_tag_module");
-}
-
-void toluaI_tm_setclass (lua_State* L, int lo)
-{
- settag(L,lo,"tolua_tag_class");
-}
-
-void toluaI_tm_class (lua_State* L, int lo, char* name)
-{
- int tag_class;
- int tag = lua_newtag(L);
- char* type = toluaI_tt_concat("class ",name);
- toluaI_getregistry(L,"tolua_tag_class");
- tag_class = (int)lua_tonumber(L,-1);
- lua_copytagmethods(L,tag,tag_class);
- toluaI_tt_register(L,tag,type);
- toluaI_tt_sethierarchy(L,tag,tag_class);
- lua_pushvalue(L,lo);
- lua_settag(L,tag);
- lua_pop(L,2); /* tag_class and lo */
-}
-
-void toluaI_tm_instance (lua_State* L, int tag, int lo)
-{
- toluaI_getregistry(L,"tolua_tbl_class");
- lua_pushnumber(L,tag);
- lua_pushvalue(L,lo);
- lua_settable(L,-3);
- toluaI_getregistry(L,"tolua_tag_instance");
- lua_copytagmethods(L,tag,(int)lua_tonumber(L,-1));
- lua_pop(L,2); /* tbl_class and tag_instance */
-}
-
-void toluaI_tm_linstance (lua_State* L, int tag, int lo)
-{
- toluaI_getregistry(L,"tolua_tbl_class");
- lua_pushnumber(L,tag);
- lua_pushvalue(L,lo);
- lua_settable(L,-3);
- toluaI_getregistry(L,"tolua_tag_linstance");
- lua_copytagmethods(L,tag,(int)lua_tonumber(L,-1));
- lua_pop(L,2); /* tbl_class and tag_linstance */
-}
-
-void* tolua_doclone (lua_State* L, void* value, int tag)
-{
- toluaI_getregistry(L,"tolua_tbl_clone");
- lua_pushuserdata(L,value);
- lua_pushnumber(L,tag);
- lua_settable(L,-3);
- lua_pop(L,1);
- return value;
-}
-
-void* tolua_copy (lua_State* L, void* value, unsigned int size)
-{
- void* clone = (void*)malloc(size);
- if (clone)
- memcpy(clone,value,size);
- else
- tolua_error(L,"insuficient memory");
- return clone;
-}
-
-static void toluaI_tm_undoclone (lua_State* L, int tag, void* clone)
-{
- toluaI_getregistry(L,"tolua_tbl_clone");
- lua_pushuserdata(L,clone);
- lua_gettable(L,-2);
- if (lua_isnumber(L,-1) && lua_tonumber(L,-1)==tag)
- {
- lua_pushuserdata(L,clone);
- lua_pushnil(L);
- lua_settable(L,-4);
-
- /* get base class */
- toluaI_getregistry(L,"tolua_tbl_class");
- lua_pushnumber(L,tag);
- lua_rawget(L,-2);
-
- /* look for destructor */
- lua_pushstring(L,"delete");
- lua_gettable(L,-2);
- if (lua_iscfunction(L,-1))
- {
- lua_pushusertag(L,clone,tag);
- lua_call(L,1,0);
- }
- else
- {
- free(clone); /* no destructor: use raw free */
- lua_pop(L,1); /* the nil function value */
- }
- lua_pop(L,2); /* tbl_class and class method table */
- }
- lua_pop(L,2); /* table and value */
-}
-
-void toluaI_tm_pushmate (lua_State* L, int lo)
-{
- toluaI_getregistry(L,"tolua_tbl_mate");
- lua_pushvalue(L,lo);
- lua_rawget(L,-2);
- lua_insert(L,-2);
- lua_pop(L,1);
-}
-
-void toluaI_tm_pushclass (lua_State* L, int lo)
-{
- toluaI_getregistry(L,"tolua_tbl_class");
- lua_pushnumber(L,lua_tag(L,lo));
- lua_rawget(L,-2);
- lua_insert(L,-2);
- lua_pop(L,1);
-}
-
-int toluaI_gettag (lua_State* L, char* tagname)
-{
- int tag;
- toluaI_getregistry(L,tagname);
- tag = (int)lua_tonumber(L,-1);
- lua_pop(L,1);
- return tag;
-}
-
-void toluaI_tm_init (lua_State* L)
-{
- lua_newtable(L); toluaI_setregistry(L,"tolua_tbl_class");
- lua_newtable(L); toluaI_setregistry(L,"tolua_tbl_clone");
- lua_newtable(L); toluaI_setregistry(L,"tolua_tbl_mate");
-
- lua_pushnumber(L,lua_newtag(L)); toluaI_setregistry(L,"tolua_tag_global");
- lua_pushnumber(L,lua_newtag(L)); toluaI_setregistry(L,"tolua_tag_module");
- lua_pushnumber(L,lua_newtag(L)); toluaI_setregistry(L,"tolua_tag_class");
- lua_pushnumber(L,lua_newtag(L)); toluaI_setregistry(L,"tolua_tag_instance");
- lua_pushnumber(L,lua_newtag(L)); toluaI_setregistry(L,"tolua_tag_linstance");
- lua_pushnumber(L,lua_newtag(L)); toluaI_setregistry(L,"tolua_tag_indirect");
-
- toluaI_tt_register(L,toluaI_gettag(L,"tolua_tag_global"),"generic variable");
- toluaI_tt_register(L,toluaI_gettag(L,"tolua_tag_module"),"generic module");
- toluaI_tt_register(L,toluaI_gettag(L,"tolua_tag_class"),"generic class");
- toluaI_tt_register(L,toluaI_gettag(L,"tolua_tag_indirect"),"generic indirect");
- toluaI_tt_register(L,toluaI_gettag(L,"tolua_tag_instance"),"generic instance");
- toluaI_tt_register(L,toluaI_gettag(L,"tolua_tag_linstance"),"generic lua instance");
-
- /* allows modules and classes to be used as ordinary tables */
- toluaI_tt_sethierarchy(L,toluaI_gettag(L,"tolua_tag_module"),tolua_tag_table);
- toluaI_tt_sethierarchy(L,toluaI_gettag(L,"tolua_tag_class"),tolua_tag_table);
-
- setmethods(L);
-}
-
-static int map (lua_State* L)
-{
- int m = lua_gettop(L);
- /* do not pass string fields starting with a dot */
- if (!lua_isstring(L,1) || *lua_tostring(L,1)!='.')
- {
- lua_getglobals(L);
- lua_pushvalue(L,1);
- lua_pushvalue(L,m);
- lua_rawset(L,-3);
- lua_pop(L,1);
- }
- return 0;
-}
-
-void toluaI_tm_using (lua_State* L, int module)
-{
- lua_newtable(L);
- lua_settag(L,toluaI_gettag(L,"tolua_tag_indirect"));
- lua_pushstring(L,".module");
- lua_pushvalue(L,module);
- lua_settable(L,-3);
-
- lua_getglobal(L,"foreach");
- lua_pushvalue(L,module);
- lua_pushvalue(L,-3);
- lua_pushcclosure(L,map,1);
- lua_call(L,2,0);
-
- lua_getglobal(L,"foreach");
- lua_pushvalue(L,module);
- lua_pushstring(L,".get");
- lua_gettable(L,-2);
- lua_insert(L,-2);
- lua_pop(L,1); /* module table */
- lua_pushvalue(L,-3);
- lua_pushcclosure(L,map,1);
- lua_call(L,2,0);
- lua_pop(L,1); /* indirect table */
-}
-
-/********************************************************** tag methods */
-
-/* tag methods coded in C */
-
-/* generic gettable */
-static void oo_gettable (lua_State* L, int table, int base, int index)
-{
- while (lua_istable(L,base))
- {
- lua_pushvalue(L,index);
- lua_rawget(L,base);
- if (!lua_isnil(L,-1))
- return; /* returned value already on the top */
- else if (lua_isnumber(L,index))
- {
- lua_pushstring(L,"operator_get");
- lua_rawget(L,base);
- if (!lua_isnil(L,-1))
- {
- lua_pushvalue(L,table);
- lua_pushvalue(L,index);
- lua_call(L,2,1);
- return;
- }
- }
- else
- {
- lua_pushstring(L,".get");
- lua_rawget(L,base);
- if (!lua_isnil(L,-1))
- {
- lua_pushvalue(L,index);
- lua_rawget(L,-2);
- if (!lua_isnil(L,-1))
- {
- lua_pushvalue(L,table);
- lua_pushvalue(L,index); /* need to access array field (?) */
- lua_call(L,2,1);
- return;
- }
- }
- }
- lua_pushstring(L,".base"); lua_rawget(L,base);
- base = lua_gettop(L);
- }
- lua_pushnil(L);
-}
-
-/* generic settable */
-static int oo_settable (lua_State* L, int table, int base, int index, int value)
-{
- while (lua_istable(L,base))
- {
- lua_pushstring(L,".set");
- lua_rawget(L,base);
- if (!lua_isnil(L,-1))
- {
- lua_pushvalue(L,index);
- lua_rawget(L,-2);
- if (!lua_isnil(L,-1))
- {
- lua_pushvalue(L,table);
- lua_pushvalue(L,value);
- lua_call(L,2,0);
- return 1;
- }
- }
- lua_pushstring(L,".base"); lua_rawget(L,base);
- base = lua_gettop(L);
- }
- return 0;
-}
-
-/* class tag methods */
-static int class_index (lua_State* L)
-{
- int table = 1;
- int index = 2;
- oo_gettable(L,table,table,index);
- return 1;
-}
-static int class_settable (lua_State* L)
-{
- int table = 1;
- int index = 2;
- int value = 3;
- if (oo_settable(L,table,table,index,value) == 0)
- {
- lua_pushvalue(L,table);
- lua_pushvalue(L,index);
- lua_pushvalue(L,value);
- lua_rawset(L,-3);
- }
- return 0;
-}
-
-/* instance tags */
-static int instance_gettable (lua_State* L)
-{
- int table = 1;
- int index = 2;
- toluaI_tm_pushmate(L,table); /* pushes mate */
- if (!lua_isnil(L,-1)) /* if there's a mate table */
- {
- lua_pushvalue(L,index);
- lua_rawget(L,-2);
- if (!lua_isnil(L,-1)) /* if field in mate table exists */
- return 1;
- }
- toluaI_tm_pushclass(L,table); /* pushes base */
- oo_gettable(L,table,lua_gettop(L),index);
- return 1;
-}
-static int instance_settable (lua_State* L)
-{
- int table = 1;
- int index = 2;
- int value = 3;
- toluaI_tm_pushclass(L,table); /* pushes base */
- if (lua_isnumber(L,index))
- {
- lua_pushstring(L,"operator_set");
- lua_rawget(L,-2);
- if (!lua_isnil(L,-1))
- {/* the stack here is: table,index,value,base,operator */
- /* call operator passing table, index, and value */
- lua_insert(L,1);
- lua_pop(L,1); /* base */
- lua_call(L,3,0);
- return 0;
- }
- }
- if (oo_settable(L,table,4,index,value) == 0)
- {
- toluaI_tm_pushmate(L,table); /* pushes mate */
- if (lua_isnil(L,-1))
- {
- /* creates mate table */
- lua_newtable(L);
- toluaI_getregistry(L,"tolua_tbl_mate");
- lua_pushvalue(L,table); /* that is the userdata */
- lua_pushvalue(L,-3);
- lua_rawset(L,-3);
- lua_pop(L,1); /* tbl_mate */
- }
- /* the mate table is on the top */
- lua_pushvalue(L,index);
- lua_pushvalue(L,value);
- lua_rawset(L,-3);
- }
- return 0;
-}
-static int instance_gc (lua_State* L)
-{
- toluaI_tm_undoclone(L,lua_tag(L,1),lua_touserdata(L,1));
- return 0;
-}
-static int gen_operator (lua_State* L)
-{
- int op1 = 1;
- int op2 = 2;
- int event = 3;
- char* name = toluaI_tt_concat("operator_",lua_tostring(L,event));
- lua_pushstring(L,name);
- lua_gettable(L,op1);
- lua_pushvalue(L,op1);
- lua_pushvalue(L,op2);
- lua_call(L,2,1);
- return 1;
-}
-static int instance_operator (lua_State* L)
-{
- return gen_operator(L);
-}
-static int instance_relational (lua_State* L)
-{
- gen_operator(L);
- if ((int)lua_tonumber(L,-1)==0) lua_pushnil(L);
- return 1;
-}
-
-/* lua instance tags */
-static int linstance_index (lua_State* L)
-{
- toluaI_tm_pushclass(L,1);
- oo_gettable(L,1,3,2); /* table,base,index */
- return 1;
-}
-
-
-/* module tag methods */
-static int module_index (lua_State* L)
-{
- int table = 1;
- int index = 2;
- lua_pushstring(L,".get");
- lua_rawget(L,table);
- if (!lua_isnil(L,-1))
- {
- lua_pushvalue(L,index);
- lua_rawget(L,-2);
- if (!lua_isnil(L,-1))
- {
- lua_call(L,0,1);
- return 1;
- }
- }
- lua_pushnil(L);
- return 1;
-}
-static int module_settable (lua_State* L)
-{
- int table = 1;
- int index = 2;
- int value = 3;
- lua_pushstring(L,".set");
- lua_rawget(L,table);
- if (!lua_isnil(L,-1))
- {
- lua_pushvalue(L,index);
- lua_rawget(L,-2);
- if (!lua_isnil(L,-1))
- {
- lua_pushvalue(L,value);
- lua_call(L,1,0);
- return 0;
- }
- }
- lua_pushvalue(L,index);
- lua_pushvalue(L,value);
- lua_rawset(L,table);
- return 0;
-}
-
-/* global variable tag methods */
-static int global_getglobal (lua_State* L)
-{
- int value = 2;
- lua_pushstring(L,".get");
- lua_rawget(L,value);
- lua_call(L,0,1);
- return 1;
-}
-static int global_setglobal (lua_State* L)
-{
- int value = 2;
- int newvalue = 3;
- lua_pushstring(L,".set");
- lua_rawget(L,value);
- if (lua_isnil(L,-1))
- lua_error(L,"value of const variable cannot be changed");
- else
- {
- lua_pushvalue(L,newvalue);
- lua_call(L,1,0);
- }
- return 0;
-}
-
-/* indirect tag methods */
-static int indirect_getglobal (lua_State* L)
-{
- int varname = 1;
- int value = 2;
- lua_pushstring(L,".module");
- lua_gettable(L,value);
- lua_pushvalue(L,varname);
- lua_gettable(L,-2);
- return 1;
-}
-static int indirect_setglobal (lua_State* L)
-{
- int varname = 1;
- int value = 2;
- int newvalue = 3;
- lua_pushstring(L,".module");
- lua_gettable(L,value);
- lua_pushvalue(L,varname);
- lua_pushvalue(L,newvalue);
- lua_settable(L,-3);
- return 0;
-}
-
-static void setmethods (lua_State* L)
-{
- /* global variable */
- lua_pushcfunction(L,global_getglobal);
- lua_settagmethod(L,toluaI_gettag(L,"tolua_tag_global"),"getglobal");
- lua_pushcfunction(L,global_setglobal);
- lua_settagmethod(L,toluaI_gettag(L,"tolua_tag_global"),"setglobal");
-
- /* module */
- lua_pushcfunction(L,module_index);
- lua_settagmethod(L,toluaI_gettag(L,"tolua_tag_module"),"index");
- lua_pushcfunction(L,module_settable);
- lua_settagmethod(L,toluaI_gettag(L,"tolua_tag_module"),"settable");
-
- /* class */
- lua_pushcfunction(L,class_index);
- lua_settagmethod(L,toluaI_gettag(L,"tolua_tag_class"),"index");
- lua_pushcfunction(L,class_settable);
- lua_settagmethod(L,toluaI_gettag(L,"tolua_tag_class"),"settable");
-
- /* instance */
- lua_pushcfunction(L,instance_gettable);
- lua_settagmethod(L,toluaI_gettag(L,"tolua_tag_instance"),"gettable");
- lua_pushcfunction(L,instance_settable);
- lua_settagmethod(L,toluaI_gettag(L,"tolua_tag_instance"),"settable");
- lua_pushcfunction(L,instance_operator);
- lua_settagmethod(L,toluaI_gettag(L,"tolua_tag_instance"),"add");
- lua_pushcfunction(L,instance_operator);
- lua_settagmethod(L,toluaI_gettag(L,"tolua_tag_instance"),"sub");
- lua_pushcfunction(L,instance_operator);
- lua_settagmethod(L,toluaI_gettag(L,"tolua_tag_instance"),"mul");
- lua_pushcfunction(L,instance_operator);
- lua_settagmethod(L,toluaI_gettag(L,"tolua_tag_instance"),"div");
- lua_pushcfunction(L,instance_relational);
- lua_settagmethod(L,toluaI_gettag(L,"tolua_tag_instance"),"lt");
- lua_pushcfunction(L,instance_gc);
- lua_settagmethod(L,toluaI_gettag(L,"tolua_tag_instance"),"gc");
-
- /* lua instance */
- lua_pushcfunction(L,linstance_index);
- lua_settagmethod(L,toluaI_gettag(L,"tolua_tag_linstance"),"index");
-
- /* indirect */
- lua_pushcfunction(L,indirect_getglobal);
- lua_settagmethod(L,toluaI_gettag(L,"tolua_tag_indirect"),"getglobal");
- lua_pushcfunction(L,indirect_setglobal);
- lua_settagmethod(L,toluaI_gettag(L,"tolua_tag_indirect"),"setglobal");
-}
-
-
-