diff options
author | Tiger Wang <ziwei.tiger@hotmail.co.uk> | 2013-11-27 22:35:13 +0100 |
---|---|---|
committer | Tiger Wang <ziwei.tiger@hotmail.co.uk> | 2013-11-27 22:35:13 +0100 |
commit | a6630d32394120a78af56bc612fa3c3449283248 (patch) | |
tree | 2c791266b0f213cd56961299da8d2258b8f85d8e /tolua++-1.0.93/src/lib/tolua_map.c | |
parent | Fixed spawn point being generally in an ocean (diff) | |
parent | Voronoi-related biomegens use the new cVoronoiMap class. (diff) | |
download | cuberite-a6630d32394120a78af56bc612fa3c3449283248.tar cuberite-a6630d32394120a78af56bc612fa3c3449283248.tar.gz cuberite-a6630d32394120a78af56bc612fa3c3449283248.tar.bz2 cuberite-a6630d32394120a78af56bc612fa3c3449283248.tar.lz cuberite-a6630d32394120a78af56bc612fa3c3449283248.tar.xz cuberite-a6630d32394120a78af56bc612fa3c3449283248.tar.zst cuberite-a6630d32394120a78af56bc612fa3c3449283248.zip |
Diffstat (limited to 'tolua++-1.0.93/src/lib/tolua_map.c')
-rw-r--r-- | tolua++-1.0.93/src/lib/tolua_map.c | 704 |
1 files changed, 0 insertions, 704 deletions
diff --git a/tolua++-1.0.93/src/lib/tolua_map.c b/tolua++-1.0.93/src/lib/tolua_map.c deleted file mode 100644 index d00e7069b..000000000 --- a/tolua++-1.0.93/src/lib/tolua_map.c +++ /dev/null @@ -1,704 +0,0 @@ -/* tolua: functions to map features -** Support code for Lua bindings. -** Written by Waldemar Celes -** TeCGraf/PUC-Rio -** Apr 2003 -** $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. -*/ - -#include "tolua++.h" -#include "tolua_event.h" -#include "lauxlib.h" - -#include <string.h> -#include <stdio.h> -#include <stdlib.h> -#include <math.h> - - -/* Create metatable - * Create and register new metatable -*/ -static int tolua_newmetatable (lua_State* L, char* name) -{ - int r = luaL_newmetatable(L,name); - - #ifdef LUA_VERSION_NUM /* only lua 5.1 */ - if (r) { - lua_pushvalue(L, -1); - lua_pushstring(L, name); - lua_settable(L, LUA_REGISTRYINDEX); /* reg[mt] = type_name */ - }; - #endif - - if (r) - tolua_classevents(L); /* set meta events */ - lua_pop(L,1); - return r; -} - -/* Map super classes - * It sets 'name' as being also a 'base', mapping all super classes of 'base' in 'name' -*/ -static void mapsuper (lua_State* L, const char* name, const char* base) -{ - /* push registry.super */ - lua_pushstring(L,"tolua_super"); - lua_rawget(L,LUA_REGISTRYINDEX); /* stack: super */ - luaL_getmetatable(L,name); /* stack: super mt */ - lua_rawget(L,-2); /* stack: super table */ - if (lua_isnil(L,-1)) - { - /* create table */ - lua_pop(L,1); - lua_newtable(L); /* stack: super table */ - luaL_getmetatable(L,name); /* stack: super table mt */ - lua_pushvalue(L,-2); /* stack: super table mt table */ - lua_rawset(L,-4); /* stack: super table */ - } - - /* set base as super class */ - lua_pushstring(L,base); - lua_pushboolean(L,1); - lua_rawset(L,-3); /* stack: super table */ - - /* set all super class of base as super class of name */ - luaL_getmetatable(L,base); /* stack: super table base_mt */ - lua_rawget(L,-3); /* stack: super table base_table */ - if (lua_istable(L,-1)) - { - /* traverse base table */ - lua_pushnil(L); /* first key */ - while (lua_next(L,-2) != 0) - { - /* stack: ... base_table key value */ - lua_pushvalue(L,-2); /* stack: ... base_table key value key */ - lua_insert(L,-2); /* stack: ... base_table key key value */ - lua_rawset(L,-5); /* stack: ... base_table key */ - } - } - lua_pop(L,3); /* stack: <empty> */ -} - -/* creates a 'tolua_ubox' table for base clases, and -// expects the metatable and base metatable on the stack */ -static void set_ubox(lua_State* L) { - - /* mt basemt */ - if (!lua_isnil(L, -1)) { - lua_pushstring(L, "tolua_ubox"); - lua_rawget(L,-2); - } else { - lua_pushnil(L); - }; - /* mt basemt base_ubox */ - if (!lua_isnil(L,-1)) { - lua_pushstring(L, "tolua_ubox"); - lua_insert(L, -2); - /* mt basemt key ubox */ - lua_rawset(L,-4); - /* (mt with ubox) basemt */ - } else { - /* mt basemt nil */ - lua_pop(L, 1); - lua_pushstring(L,"tolua_ubox"); lua_newtable(L); - /* make weak value metatable for ubox table to allow userdata to be - garbage-collected */ - lua_newtable(L); lua_pushliteral(L, "__mode"); lua_pushliteral(L, "v"); lua_rawset(L, -3); /* stack: string ubox mt */ - lua_setmetatable(L, -2); /* stack:mt basemt string ubox */ - lua_rawset(L,-4); - }; - -}; - -/* Map inheritance - * It sets 'name' as derived from 'base' by setting 'base' as metatable of 'name' -*/ -static void mapinheritance (lua_State* L, const char* name, const char* base) -{ - /* set metatable inheritance */ - luaL_getmetatable(L,name); - - if (base && *base) - luaL_getmetatable(L,base); - else { - - if (lua_getmetatable(L, -1)) { /* already has a mt, we don't overwrite it */ - lua_pop(L, 2); - return; - }; - luaL_getmetatable(L,"tolua_commonclass"); - }; - - set_ubox(L); - - lua_setmetatable(L,-2); - lua_pop(L,1); -} - -/* Object type -*/ -static int tolua_bnd_type (lua_State* L) -{ - tolua_typename(L,lua_gettop(L)); - return 1; -} - -/* Take ownership -*/ -static int tolua_bnd_takeownership (lua_State* L) -{ - int success = 0; - if (lua_isuserdata(L,1)) - { - if (lua_getmetatable(L,1)) /* if metatable? */ - { - lua_pop(L,1); /* clear metatable off stack */ - /* force garbage collection to avoid C to reuse a to-be-collected address */ - #ifdef LUA_VERSION_NUM - lua_gc(L, LUA_GCCOLLECT, 0); - #else - lua_setgcthreshold(L,0); - #endif - - success = tolua_register_gc(L,1); - } - } - lua_pushboolean(L,success!=0); - return 1; -} - -/* Release ownership -*/ -static int tolua_bnd_releaseownership (lua_State* L) -{ - int done = 0; - if (lua_isuserdata(L,1)) - { - void* u = *((void**)lua_touserdata(L,1)); - /* force garbage collection to avoid releasing a to-be-collected address */ - #ifdef LUA_VERSION_NUM - lua_gc(L, LUA_GCCOLLECT, 0); - #else - lua_setgcthreshold(L,0); - #endif - lua_pushstring(L,"tolua_gc"); - lua_rawget(L,LUA_REGISTRYINDEX); - lua_pushlightuserdata(L,u); - lua_rawget(L,-2); - lua_getmetatable(L,1); - if (lua_rawequal(L,-1,-2)) /* check that we are releasing the correct type */ - { - lua_pushlightuserdata(L,u); - lua_pushnil(L); - lua_rawset(L,-5); - done = 1; - } - } - lua_pushboolean(L,done!=0); - return 1; -} - -/* Type casting -*/ -static int tolua_bnd_cast (lua_State* L) -{ - -/* // old code - void* v = tolua_tousertype(L,1,NULL); - const char* s = tolua_tostring(L,2,NULL); - if (v && s) - tolua_pushusertype(L,v,s); - else - lua_pushnil(L); - return 1; -*/ - - void* v; - const char* s; - if (lua_islightuserdata(L, 1)) { - v = tolua_touserdata(L, 1, NULL); - } else { - v = tolua_tousertype(L, 1, 0); - }; - - s = tolua_tostring(L,2,NULL); - if (v && s) - tolua_pushusertype(L,v,s); - else - lua_pushnil(L); - return 1; -} - -/* Inheritance -*/ -static int tolua_bnd_inherit (lua_State* L) { - - /* stack: lua object, c object */ - lua_pushstring(L, ".c_instance"); - lua_pushvalue(L, -2); - lua_rawset(L, -4); - /* l_obj[".c_instance"] = c_obj */ - - return 0; -}; - -#ifdef LUA_VERSION_NUM /* lua 5.1 */ -static int tolua_bnd_setpeer(lua_State* L) { - - /* stack: userdata, table */ - if (!lua_isuserdata(L, -2)) { - lua_pushstring(L, "Invalid argument #1 to setpeer: userdata expected."); - lua_error(L); - }; - - if (lua_isnil(L, -1)) { - - lua_pop(L, 1); - lua_pushvalue(L, TOLUA_NOPEER); - }; - lua_setfenv(L, -2); - - return 0; -}; - -static int tolua_bnd_getpeer(lua_State* L) { - - /* stack: userdata */ - lua_getfenv(L, -1); - if (lua_rawequal(L, -1, TOLUA_NOPEER)) { - lua_pop(L, 1); - lua_pushnil(L); - }; - return 1; -}; -#endif - -/* static int class_gc_event (lua_State* L); */ - -TOLUA_API void tolua_open (lua_State* L) -{ - int top = lua_gettop(L); - lua_pushstring(L,"tolua_opened"); - lua_rawget(L,LUA_REGISTRYINDEX); - if (!lua_isboolean(L,-1)) - { - lua_pushstring(L,"tolua_opened"); lua_pushboolean(L,1); lua_rawset(L,LUA_REGISTRYINDEX); - - #ifndef LUA_VERSION_NUM /* only prior to lua 5.1 */ - /* create peer object table */ - lua_pushstring(L, "tolua_peers"); lua_newtable(L); - /* make weak key metatable for peers indexed by userdata object */ - lua_newtable(L); lua_pushliteral(L, "__mode"); lua_pushliteral(L, "k"); lua_rawset(L, -3); /* stack: string peers mt */ - lua_setmetatable(L, -2); /* stack: string peers */ - lua_rawset(L,LUA_REGISTRYINDEX); - #endif - - /* create object ptr -> udata mapping table */ - lua_pushstring(L,"tolua_ubox"); lua_newtable(L); - /* make weak value metatable for ubox table to allow userdata to be - garbage-collected */ - lua_newtable(L); lua_pushliteral(L, "__mode"); lua_pushliteral(L, "v"); lua_rawset(L, -3); /* stack: string ubox mt */ - lua_setmetatable(L, -2); /* stack: string ubox */ - lua_rawset(L,LUA_REGISTRYINDEX); - - lua_pushstring(L,"tolua_super"); lua_newtable(L); lua_rawset(L,LUA_REGISTRYINDEX); - lua_pushstring(L,"tolua_gc"); lua_newtable(L);lua_rawset(L,LUA_REGISTRYINDEX); - - /* create gc_event closure */ - lua_pushstring(L, "tolua_gc_event"); - lua_pushstring(L, "tolua_gc"); - lua_rawget(L, LUA_REGISTRYINDEX); - lua_pushstring(L, "tolua_super"); - lua_rawget(L, LUA_REGISTRYINDEX); - lua_pushcclosure(L, class_gc_event, 2); - lua_rawset(L, LUA_REGISTRYINDEX); - - tolua_newmetatable(L,"tolua_commonclass"); - - tolua_module(L,NULL,0); - tolua_beginmodule(L,NULL); - tolua_module(L,"tolua",0); - tolua_beginmodule(L,"tolua"); - tolua_function(L,"type",tolua_bnd_type); - tolua_function(L,"takeownership",tolua_bnd_takeownership); - tolua_function(L,"releaseownership",tolua_bnd_releaseownership); - tolua_function(L,"cast",tolua_bnd_cast); - tolua_function(L,"inherit", tolua_bnd_inherit); - #ifdef LUA_VERSION_NUM /* lua 5.1 */ - tolua_function(L, "setpeer", tolua_bnd_setpeer); - tolua_function(L, "getpeer", tolua_bnd_getpeer); - #endif - - tolua_endmodule(L); - tolua_endmodule(L); - } - lua_settop(L,top); -} - -/* Copy a C object -*/ -TOLUA_API 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",NULL); - return clone; -} - -/* Default collect function -*/ -TOLUA_API int tolua_default_collect (lua_State* tolua_S) -{ - void* self = tolua_tousertype(tolua_S,1,0); - free(self); - return 0; -} - -/* Do clone -*/ -TOLUA_API int tolua_register_gc (lua_State* L, int lo) -{ - int success = 1; - void *value = *(void **)lua_touserdata(L,lo); - lua_pushstring(L,"tolua_gc"); - lua_rawget(L,LUA_REGISTRYINDEX); - lua_pushlightuserdata(L,value); - lua_rawget(L,-2); - if (!lua_isnil(L,-1)) /* make sure that object is not already owned */ - success = 0; - else - { - lua_pushlightuserdata(L,value); - lua_getmetatable(L,lo); - lua_rawset(L,-4); - } - lua_pop(L,2); - return success; -} - -/* Register a usertype - * It creates the correspoding metatable in the registry, for both 'type' and 'const type'. - * It maps 'const type' as being also a 'type' -*/ -TOLUA_API void tolua_usertype (lua_State* L, const char* type) -{ - char ctype[128] = "const "; - strncat(ctype,type,120); - - /* create both metatables */ - if (tolua_newmetatable(L,ctype) && tolua_newmetatable(L,type)) - mapsuper(L,type,ctype); /* 'type' is also a 'const type' */ -} - - -/* Begin module - * It pushes the module (or class) table on the stack -*/ -TOLUA_API void tolua_beginmodule (lua_State* L, const char* name) -{ - if (name) - { - lua_pushstring(L,name); - lua_rawget(L,-2); - } - else - lua_pushvalue(L,LUA_GLOBALSINDEX); -} - -/* End module - * It pops the module (or class) from the stack -*/ -TOLUA_API void tolua_endmodule (lua_State* L) -{ - lua_pop(L,1); -} - -/* Map module - * It creates a new module -*/ -#if 1 -TOLUA_API void tolua_module (lua_State* L, const char* name, int hasvar) -{ - if (name) - { - /* tolua module */ - lua_pushstring(L,name); - lua_rawget(L,-2); - if (!lua_istable(L,-1)) /* check if module already exists */ - { - lua_pop(L,1); - lua_newtable(L); - lua_pushstring(L,name); - lua_pushvalue(L,-2); - lua_rawset(L,-4); /* assing module into module */ - } - } - else - { - /* global table */ - lua_pushvalue(L,LUA_GLOBALSINDEX); - } - if (hasvar) - { - if (!tolua_ismodulemetatable(L)) /* check if it already has a module metatable */ - { - /* create metatable to get/set C/C++ variable */ - lua_newtable(L); - tolua_moduleevents(L); - if (lua_getmetatable(L,-2)) - lua_setmetatable(L,-2); /* set old metatable as metatable of metatable */ - lua_setmetatable(L,-2); - } - } - lua_pop(L,1); /* pop module */ -} -#else -TOLUA_API void tolua_module (lua_State* L, const char* name, int hasvar) -{ - if (name) - { - /* tolua module */ - lua_pushstring(L,name); - lua_newtable(L); - } - else - { - /* global table */ - lua_pushvalue(L,LUA_GLOBALSINDEX); - } - if (hasvar) - { - /* create metatable to get/set C/C++ variable */ - lua_newtable(L); - tolua_moduleevents(L); - if (lua_getmetatable(L,-2)) - lua_setmetatable(L,-2); /* set old metatable as metatable of metatable */ - lua_setmetatable(L,-2); - } - if (name) - lua_rawset(L,-3); /* assing module into module */ - else - lua_pop(L,1); /* pop global table */ -} -#endif - -static void push_collector(lua_State* L, const char* type, lua_CFunction col) { - - /* push collector function, but only if it's not NULL, or if there's no - collector already */ - if (!col) return; - luaL_getmetatable(L,type); - lua_pushstring(L,".collector"); - /* - if (!col) { - lua_pushvalue(L, -1); - lua_rawget(L, -3); - if (!lua_isnil(L, -1)) { - lua_pop(L, 3); - return; - }; - lua_pop(L, 1); - }; - // */ - lua_pushcfunction(L,col); - - lua_rawset(L,-3); - lua_pop(L, 1); -}; - -/* Map C class - * It maps a C class, setting the appropriate inheritance and super classes. -*/ -TOLUA_API void tolua_cclass (lua_State* L, const char* lname, const char* name, const char* base, lua_CFunction col) -{ - char cname[128] = "const "; - char cbase[128] = "const "; - strncat(cname,name,120); - strncat(cbase,base,120); - - mapinheritance(L,name,base); - mapinheritance(L,cname,name); - - mapsuper(L,cname,cbase); - mapsuper(L,name,base); - - lua_pushstring(L,lname); - - push_collector(L, name, col); - /* - luaL_getmetatable(L,name); - lua_pushstring(L,".collector"); - lua_pushcfunction(L,col); - - lua_rawset(L,-3); - */ - - luaL_getmetatable(L,name); - lua_rawset(L,-3); /* assign class metatable to module */ - - /* now we also need to store the collector table for the const - instances of the class */ - push_collector(L, cname, col); - /* - luaL_getmetatable(L,cname); - lua_pushstring(L,".collector"); - lua_pushcfunction(L,col); - lua_rawset(L,-3); - lua_pop(L,1); - */ - - -} - -/* Add base - * It adds additional base classes to a class (for multiple inheritance) - * (not for now) -TOLUA_API void tolua_addbase(lua_State* L, char* name, char* base) { - - char cname[128] = "const "; - char cbase[128] = "const "; - strncat(cname,name,120); - strncat(cbase,base,120); - - mapsuper(L,cname,cbase); - mapsuper(L,name,base); -}; -*/ - -/* Map function - * It assigns a function into the current module (or class) -*/ -TOLUA_API void tolua_function (lua_State* L, const char* name, lua_CFunction func) -{ - lua_pushstring(L,name); - lua_pushcfunction(L,func); - lua_rawset(L,-3); -} - -/* sets the __call event for the class (expects the class' main table on top) */ -/* never really worked :( -TOLUA_API void tolua_set_call_event(lua_State* L, lua_CFunction func, char* type) { - - lua_getmetatable(L, -1); - //luaL_getmetatable(L, type); - lua_pushstring(L,"__call"); - lua_pushcfunction(L,func); - lua_rawset(L,-3); - lua_pop(L, 1); -}; -*/ - -/* Map constant number - * It assigns a constant number into the current module (or class) -*/ -TOLUA_API void tolua_constant (lua_State* L, const char* name, lua_Number value) -{ - lua_pushstring(L,name); - tolua_pushnumber(L,value); - lua_rawset(L,-3); -} - - -/* Map variable - * It assigns a variable into the current module (or class) -*/ -TOLUA_API void tolua_variable (lua_State* L, const char* name, lua_CFunction get, lua_CFunction set) -{ - /* get func */ - lua_pushstring(L,".get"); - lua_rawget(L,-2); - if (!lua_istable(L,-1)) - { - /* create .get table, leaving it at the top */ - lua_pop(L,1); - lua_newtable(L); - lua_pushstring(L,".get"); - lua_pushvalue(L,-2); - lua_rawset(L,-4); - } - lua_pushstring(L,name); - lua_pushcfunction(L,get); - lua_rawset(L,-3); /* store variable */ - lua_pop(L,1); /* pop .get table */ - - /* set func */ - if (set) - { - lua_pushstring(L,".set"); - lua_rawget(L,-2); - if (!lua_istable(L,-1)) - { - /* create .set table, leaving it at the top */ - lua_pop(L,1); - lua_newtable(L); - lua_pushstring(L,".set"); - lua_pushvalue(L,-2); - lua_rawset(L,-4); - } - lua_pushstring(L,name); - lua_pushcfunction(L,set); - lua_rawset(L,-3); /* store variable */ - lua_pop(L,1); /* pop .set table */ - } -} - -/* Access const array - * It reports an error when trying to write into a const array -*/ -static int const_array (lua_State* L) -{ - luaL_error(L,"value of const array cannot be changed"); - return 0; -} - -/* Map an array - * It assigns an array into the current module (or class) -*/ -TOLUA_API void tolua_array (lua_State* L, const char* name, lua_CFunction get, lua_CFunction set) -{ - lua_pushstring(L,".get"); - lua_rawget(L,-2); - if (!lua_istable(L,-1)) - { - /* create .get table, leaving it at the top */ - lua_pop(L,1); - lua_newtable(L); - lua_pushstring(L,".get"); - lua_pushvalue(L,-2); - lua_rawset(L,-4); - } - lua_pushstring(L,name); - - lua_newtable(L); /* create array metatable */ - lua_pushvalue(L,-1); - lua_setmetatable(L,-2); /* set the own table as metatable (for modules) */ - lua_pushstring(L,"__index"); - lua_pushcfunction(L,get); - lua_rawset(L,-3); - lua_pushstring(L,"__newindex"); - lua_pushcfunction(L,set?set:const_array); - lua_rawset(L,-3); - - lua_rawset(L,-3); /* store variable */ - lua_pop(L,1); /* pop .get table */ -} - - -TOLUA_API void tolua_dobuffer(lua_State* L, char* B, unsigned int size, const char* name) { - - #ifdef LUA_VERSION_NUM /* lua 5.1 */ - luaL_loadbuffer(L, B, size, name) || lua_pcall(L, 0, 0, 0); - #else - lua_dobuffer(L, B, size, name); - #endif -}; - |