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Diffstat (limited to 'lib/tolua++/src/lib/tolua_event.c')
m---------lib/tolua++0
-rw-r--r--lib/tolua++/src/lib/tolua_event.c536
2 files changed, 0 insertions, 536 deletions
diff --git a/lib/tolua++ b/lib/tolua++
new file mode 160000
+Subproject 9181fc9ef73fa1c052f968d68dc60538f144a47
diff --git a/lib/tolua++/src/lib/tolua_event.c b/lib/tolua++/src/lib/tolua_event.c
deleted file mode 100644
index 3075a60b3..000000000
--- a/lib/tolua++/src/lib/tolua_event.c
+++ /dev/null
@@ -1,536 +0,0 @@
-/* tolua: event functions
-** 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 <stdio.h>
-
-#include "../../include/tolua++.h"
-
-/* Store at ubox
- * It stores, creating the corresponding table if needed,
- * the pair key/value in the corresponding ubox table
-*/
-static void storeatubox (lua_State* L, int lo)
-{
- #ifdef LUA_VERSION_NUM
- lua_getfenv(L, lo);
- if (lua_rawequal(L, -1, TOLUA_NOPEER)) {
- lua_pop(L, 1);
- lua_newtable(L);
- lua_pushvalue(L, -1);
- lua_setfenv(L, lo); /* stack: k,v,table */
- };
- lua_insert(L, -3);
- lua_settable(L, -3); /* on lua 5.1, we trade the "tolua_peers" lookup for a settable call */
- lua_pop(L, 1);
- #else
- /* stack: key value (to be stored) */
- lua_pushstring(L,"tolua_peers");
- lua_rawget(L,LUA_REGISTRYINDEX); /* stack: k v ubox */
- lua_pushvalue(L,lo);
- lua_rawget(L,-2); /* stack: k v ubox ubox[u] */
- if (!lua_istable(L,-1))
- {
- lua_pop(L,1); /* stack: k v ubox */
- lua_newtable(L); /* stack: k v ubox table */
- lua_pushvalue(L,1);
- lua_pushvalue(L,-2); /* stack: k v ubox table u table */
- lua_rawset(L,-4); /* stack: k v ubox ubox[u]=table */
- }
- lua_insert(L,-4); /* put table before k */
- lua_pop(L,1); /* pop ubox */
- lua_rawset(L,-3); /* store at table */
- lua_pop(L,1); /* pop ubox[u] */
- #endif
-}
-
-/* Module index function
-*/
-static int module_index_event (lua_State* L)
-{
- lua_pushstring(L,".get");
- lua_rawget(L,-3);
- if (lua_istable(L,-1))
- {
- lua_pushvalue(L,2); /* key */
- lua_rawget(L,-2);
- if (lua_iscfunction(L,-1))
- {
- lua_call(L,0,1);
- return 1;
- }
- else if (lua_istable(L,-1))
- return 1;
- }
- /* call old index meta event */
- if (lua_getmetatable(L,1))
- {
- lua_pushstring(L,"__index");
- lua_rawget(L,-2);
- lua_pushvalue(L,1);
- lua_pushvalue(L,2);
- if (lua_isfunction(L,-1))
- {
- lua_call(L,2,1);
- return 1;
- }
- else if (lua_istable(L,-1))
- {
- lua_gettable(L,-3);
- return 1;
- }
- }
- lua_pushnil(L);
- return 1;
-}
-
-/* Module newindex function
-*/
-static int module_newindex_event (lua_State* L)
-{
- lua_pushstring(L,".set");
- lua_rawget(L,-4);
- if (lua_istable(L,-1))
- {
- lua_pushvalue(L,2); /* key */
- lua_rawget(L,-2);
- if (lua_iscfunction(L,-1))
- {
- lua_pushvalue(L,1); /* only to be compatible with non-static vars */
- lua_pushvalue(L,3); /* value */
- lua_call(L,2,0);
- return 0;
- }
- }
- /* call old newindex meta event */
- if (lua_getmetatable(L,1) && lua_getmetatable(L,-1))
- {
- lua_pushstring(L,"__newindex");
- lua_rawget(L,-2);
- if (lua_isfunction(L,-1))
- {
- lua_pushvalue(L,1);
- lua_pushvalue(L,2);
- lua_pushvalue(L,3);
- lua_call(L,3,0);
- }
- }
- lua_settop(L,3);
- lua_rawset(L,-3);
- return 0;
-}
-
-/* Class index function
- * If the object is a userdata (ie, an object), it searches the field in
- * the alternative table stored in the corresponding "ubox" table.
-*/
-static int class_index_event (lua_State* L)
-{
- int t = lua_type(L,1);
- if (t == LUA_TUSERDATA)
- {
- /* Access alternative table */
- #ifdef LUA_VERSION_NUM /* new macro on version 5.1 */
- lua_getfenv(L,1);
- if (!lua_rawequal(L, -1, TOLUA_NOPEER)) {
- lua_pushvalue(L, 2); /* key */
- lua_gettable(L, -2); /* on lua 5.1, we trade the "tolua_peers" lookup for a gettable call */
- if (!lua_isnil(L, -1))
- return 1;
- };
- #else
- lua_pushstring(L,"tolua_peers");
- lua_rawget(L,LUA_REGISTRYINDEX); /* stack: obj key ubox */
- lua_pushvalue(L,1);
- lua_rawget(L,-2); /* stack: obj key ubox ubox[u] */
- if (lua_istable(L,-1))
- {
- lua_pushvalue(L,2); /* key */
- lua_rawget(L,-2); /* stack: obj key ubox ubox[u] value */
- if (!lua_isnil(L,-1))
- return 1;
- }
- #endif
- lua_settop(L,2); /* stack: obj key */
- /* Try metatables */
- lua_pushvalue(L,1); /* stack: obj key obj */
- while (lua_getmetatable(L,-1))
- { /* stack: obj key obj mt */
- lua_remove(L,-2); /* stack: obj key mt */
- if (lua_isnumber(L,2)) /* check if key is a numeric value */
- {
- /* try operator[] */
- lua_pushstring(L,".geti");
- lua_rawget(L,-2); /* stack: obj key mt func */
- if (lua_isfunction(L,-1))
- {
- lua_pushvalue(L,1);
- lua_pushvalue(L,2);
- lua_call(L,2,1);
- return 1;
- }
- }
- else
- {
- lua_pushvalue(L,2); /* stack: obj key mt key */
- lua_rawget(L,-2); /* stack: obj key mt value */
- if (!lua_isnil(L,-1))
- return 1;
- else
- lua_pop(L,1);
- /* try C/C++ variable */
- lua_pushstring(L,".get");
- lua_rawget(L,-2); /* stack: obj key mt tget */
- if (lua_istable(L,-1))
- {
- lua_pushvalue(L,2);
- lua_rawget(L,-2); /* stack: obj key mt value */
- if (lua_iscfunction(L,-1))
- {
- lua_pushvalue(L,1);
- lua_pushvalue(L,2);
- lua_call(L,2,1);
- return 1;
- }
- else if (lua_istable(L,-1))
- {
- /* deal with array: create table to be returned and cache it in ubox */
- void* u = *((void**)lua_touserdata(L,1));
- lua_newtable(L); /* stack: obj key mt value table */
- lua_pushstring(L,".self");
- lua_pushlightuserdata(L,u);
- lua_rawset(L,-3); /* store usertype in ".self" */
- lua_insert(L,-2); /* stack: obj key mt table value */
- lua_setmetatable(L,-2); /* set stored value as metatable */
- lua_pushvalue(L,-1); /* stack: obj key met table table */
- lua_pushvalue(L,2); /* stack: obj key mt table table key */
- lua_insert(L,-2); /* stack: obj key mt table key table */
- storeatubox(L,1); /* stack: obj key mt table */
- return 1;
- }
- }
- }
- lua_settop(L,3);
- }
- lua_pushnil(L);
- return 1;
- }
- else if (t== LUA_TTABLE)
- {
- module_index_event(L);
- return 1;
- }
- lua_pushnil(L);
- return 1;
-}
-
-/* Newindex function
- * It first searches for a C/C++ varaible to be set.
- * Then, it either stores it in the alternative ubox table (in the case it is
- * an object) or in the own table (that represents the class or module).
-*/
-static int class_newindex_event (lua_State* L)
-{
- int t = lua_type(L,1);
- if (t == LUA_TUSERDATA)
- {
- /* Try accessing a C/C++ variable to be set */
- lua_getmetatable(L,1);
- while (lua_istable(L,-1)) /* stack: t k v mt */
- {
- if (lua_isnumber(L,2)) /* check if key is a numeric value */
- {
- /* try operator[] */
- lua_pushstring(L,".seti");
- lua_rawget(L,-2); /* stack: obj key mt func */
- if (lua_isfunction(L,-1))
- {
- lua_pushvalue(L,1);
- lua_pushvalue(L,2);
- lua_pushvalue(L,3);
- lua_call(L,3,0);
- return 0;
- }
- }
- else
- {
- lua_pushstring(L,".set");
- lua_rawget(L,-2); /* stack: t k v mt tset */
- if (lua_istable(L,-1))
- {
- lua_pushvalue(L,2);
- lua_rawget(L,-2); /* stack: t k v mt tset func */
- if (lua_iscfunction(L,-1))
- {
- lua_pushvalue(L,1);
- lua_pushvalue(L,3);
- lua_call(L,2,0);
- return 0;
- }
- lua_pop(L,1); /* stack: t k v mt tset */
- }
- lua_pop(L,1); /* stack: t k v mt */
- if (!lua_getmetatable(L,-1)) /* stack: t k v mt mt */
- lua_pushnil(L);
- lua_remove(L,-2); /* stack: t k v mt */
- }
- }
- lua_settop(L,3); /* stack: t k v */
-
- /* then, store as a new field */
- storeatubox(L,1);
- }
- else if (t== LUA_TTABLE)
- {
- module_newindex_event(L);
- }
- return 0;
-}
-
-static int class_call_event(lua_State* L) {
-
- if (lua_istable(L, 1)) {
- lua_pushstring(L, ".call");
- lua_rawget(L, 1);
- if (lua_isfunction(L, -1)) {
-
- lua_insert(L, 1);
- lua_call(L, lua_gettop(L)-1, 1);
-
- return 1;
- };
- };
- tolua_error(L,"Attempt to call a non-callable object.",NULL);
- return 0;
-};
-
-static int do_operator (lua_State* L, const char* op)
-{
- if (lua_isuserdata(L,1))
- {
- /* Try metatables */
- lua_pushvalue(L,1); /* stack: op1 op2 */
- while (lua_getmetatable(L,-1))
- { /* stack: op1 op2 op1 mt */
- lua_remove(L,-2); /* stack: op1 op2 mt */
- lua_pushstring(L,op); /* stack: op1 op2 mt key */
- lua_rawget(L,-2); /* stack: obj key mt func */
- if (lua_isfunction(L,-1))
- {
- lua_pushvalue(L,1);
- lua_pushvalue(L,2);
- lua_call(L,2,1);
- return 1;
- }
- lua_settop(L,3);
- }
- }
- tolua_error(L,"Attempt to perform operation on an invalid operand",NULL);
- return 0;
-}
-
-static int class_add_event (lua_State* L)
-{
- return do_operator(L,".add");
-}
-
-static int class_sub_event (lua_State* L)
-{
- return do_operator(L,".sub");
-}
-
-static int class_mul_event (lua_State* L)
-{
- return do_operator(L,".mul");
-}
-
-static int class_div_event (lua_State* L)
-{
- return do_operator(L,".div");
-}
-
-static int class_lt_event (lua_State* L)
-{
- return do_operator(L,".lt");
-}
-
-static int class_le_event (lua_State* L)
-{
- return do_operator(L,".le");
-}
-
-static int class_eq_event (lua_State* L)
-{
- /* copying code from do_operator here to return false when no operator is found */
- if (lua_isuserdata(L,1))
- {
- /* Try metatables */
- lua_pushvalue(L,1); /* stack: op1 op2 */
- while (lua_getmetatable(L,-1))
- { /* stack: op1 op2 op1 mt */
- lua_remove(L,-2); /* stack: op1 op2 mt */
- lua_pushstring(L,".eq"); /* stack: op1 op2 mt key */
- lua_rawget(L,-2); /* stack: obj key mt func */
- if (lua_isfunction(L,-1))
- {
- lua_pushvalue(L,1);
- lua_pushvalue(L,2);
- lua_call(L,2,1);
- return 1;
- }
- lua_settop(L,3);
- }
- }
-
- lua_settop(L, 3);
- lua_pushboolean(L, 0);
- return 1;
-}
-
-/*
-static int class_gc_event (lua_State* L)
-{
- void* u = *((void**)lua_touserdata(L,1));
- fprintf(stderr, "collecting: looking at %p\n", u);
- lua_pushstring(L,"tolua_gc");
- lua_rawget(L,LUA_REGISTRYINDEX);
- lua_pushlightuserdata(L,u);
- lua_rawget(L,-2);
- if (lua_isfunction(L,-1))
- {
- lua_pushvalue(L,1);
- lua_call(L,1,0);
- lua_pushlightuserdata(L,u);
- lua_pushnil(L);
- lua_rawset(L,-3);
- }
- lua_pop(L,2);
- return 0;
-}
-*/
-TOLUA_API int class_gc_event (lua_State* L)
-{
- void* u = *((void**)lua_touserdata(L,1));
- int top;
- /*fprintf(stderr, "collecting: looking at %p\n", u);*/
- /*
- lua_pushstring(L,"tolua_gc");
- lua_rawget(L,LUA_REGISTRYINDEX);
- */
- lua_pushvalue(L, lua_upvalueindex(1));
- lua_pushlightuserdata(L,u);
- lua_rawget(L,-2); /* stack: gc umt */
- lua_getmetatable(L,1); /* stack: gc umt mt */
- /*fprintf(stderr, "checking type\n");*/
- top = lua_gettop(L);
- if (tolua_fast_isa(L,top,top-1, lua_upvalueindex(2))) /* make sure we collect correct type */
- {
- /*fprintf(stderr, "Found type!\n");*/
- /* get gc function */
- lua_pushliteral(L,".collector");
- lua_rawget(L,-2); /* stack: gc umt mt collector */
- if (lua_isfunction(L,-1)) {
- /*fprintf(stderr, "Found .collector!\n");*/
- }
- else {
- lua_pop(L,1);
- /*fprintf(stderr, "Using default cleanup\n");*/
- lua_pushcfunction(L,tolua_default_collect);
- }
-
- lua_pushvalue(L,1); /* stack: gc umt mt collector u */
- lua_call(L,1,0);
-
- lua_pushlightuserdata(L,u); /* stack: gc umt mt u */
- lua_pushnil(L); /* stack: gc umt mt u nil */
- lua_rawset(L,-5); /* stack: gc umt mt */
- }
- lua_pop(L,3);
- return 0;
-}
-
-
-/* Register module events
- * It expects the metatable on the top of the stack
-*/
-TOLUA_API void tolua_moduleevents (lua_State* L)
-{
- lua_pushstring(L,"__index");
- lua_pushcfunction(L,module_index_event);
- lua_rawset(L,-3);
- lua_pushstring(L,"__newindex");
- lua_pushcfunction(L,module_newindex_event);
- lua_rawset(L,-3);
-}
-
-/* Check if the object on the top has a module metatable
-*/
-TOLUA_API int tolua_ismodulemetatable (lua_State* L)
-{
- int r = 0;
- if (lua_getmetatable(L,-1))
- {
- lua_pushstring(L,"__index");
- lua_rawget(L,-2);
- r = (lua_tocfunction(L,-1) == module_index_event);
- lua_pop(L,2);
- }
- return r;
-}
-
-/* Register class events
- * It expects the metatable on the top of the stack
-*/
-TOLUA_API void tolua_classevents (lua_State* L)
-{
- lua_pushstring(L,"__index");
- lua_pushcfunction(L,class_index_event);
- lua_rawset(L,-3);
- lua_pushstring(L,"__newindex");
- lua_pushcfunction(L,class_newindex_event);
- lua_rawset(L,-3);
-
- lua_pushstring(L,"__add");
- lua_pushcfunction(L,class_add_event);
- lua_rawset(L,-3);
- lua_pushstring(L,"__sub");
- lua_pushcfunction(L,class_sub_event);
- lua_rawset(L,-3);
- lua_pushstring(L,"__mul");
- lua_pushcfunction(L,class_mul_event);
- lua_rawset(L,-3);
- lua_pushstring(L,"__div");
- lua_pushcfunction(L,class_div_event);
- lua_rawset(L,-3);
-
- lua_pushstring(L,"__lt");
- lua_pushcfunction(L,class_lt_event);
- lua_rawset(L,-3);
- lua_pushstring(L,"__le");
- lua_pushcfunction(L,class_le_event);
- lua_rawset(L,-3);
- lua_pushstring(L,"__eq");
- lua_pushcfunction(L,class_eq_event);
- lua_rawset(L,-3);
-
- lua_pushstring(L,"__call");
- lua_pushcfunction(L,class_call_event);
- lua_rawset(L,-3);
-
- lua_pushstring(L,"__gc");
- lua_pushstring(L, "tolua_gc_event");
- lua_rawget(L, LUA_REGISTRYINDEX);
- /*lua_pushcfunction(L,class_gc_event);*/
- lua_rawset(L,-3);
-}
-
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-17 14:03:09 +0200