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authorfaketruth <faketruth@0a769ca7-a7f5-676a-18bf-c427514a06d6>2011-10-03 21:25:04 +0200
committerfaketruth <faketruth@0a769ca7-a7f5-676a-18bf-c427514a06d6>2011-10-03 21:25:04 +0200
commitaafef187ef856a36c3f8e599afea2dee44f08904 (patch)
treec84762cc768da2800a0f80b902c704e782bd29ef /tolua++-1.0.93/src/lib/tolua_push.c
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Diffstat (limited to 'tolua++-1.0.93/src/lib/tolua_push.c')
-rw-r--r--tolua++-1.0.93/src/lib/tolua_push.c171
1 files changed, 171 insertions, 0 deletions
diff --git a/tolua++-1.0.93/src/lib/tolua_push.c b/tolua++-1.0.93/src/lib/tolua_push.c
new file mode 100644
index 000000000..639414755
--- /dev/null
+++ b/tolua++-1.0.93/src/lib/tolua_push.c
@@ -0,0 +1,171 @@
+/* tolua: functions to push C values.
+** 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 "lauxlib.h"
+
+#include <stdlib.h>
+
+TOLUA_API void tolua_pushvalue (lua_State* L, int lo)
+{
+ lua_pushvalue(L,lo);
+}
+
+TOLUA_API void tolua_pushboolean (lua_State* L, int value)
+{
+ lua_pushboolean(L,value);
+}
+
+TOLUA_API void tolua_pushnumber (lua_State* L, lua_Number value)
+{
+ lua_pushnumber(L,value);
+}
+
+TOLUA_API void tolua_pushstring (lua_State* L, const char* value)
+{
+ if (value == NULL)
+ lua_pushnil(L);
+ else
+ lua_pushstring(L,value);
+}
+
+TOLUA_API void tolua_pushuserdata (lua_State* L, void* value)
+{
+ if (value == NULL)
+ lua_pushnil(L);
+ else
+ lua_pushlightuserdata(L,value);
+}
+
+TOLUA_API void tolua_pushusertype (lua_State* L, void* value, const char* type)
+{
+ if (value == NULL)
+ lua_pushnil(L);
+ else
+ {
+ luaL_getmetatable(L, type);
+ lua_pushstring(L,"tolua_ubox");
+ lua_rawget(L,-2); /* stack: mt ubox */
+ if (lua_isnil(L, -1)) {
+ lua_pop(L, 1);
+ lua_pushstring(L, "tolua_ubox");
+ lua_rawget(L, LUA_REGISTRYINDEX);
+ };
+ lua_pushlightuserdata(L,value);
+ lua_rawget(L,-2); /* stack: mt ubox ubox[u] */
+ if (lua_isnil(L,-1))
+ {
+ lua_pop(L,1); /* stack: mt ubox */
+ lua_pushlightuserdata(L,value);
+ *(void**)lua_newuserdata(L,sizeof(void *)) = value; /* stack: mt ubox u newud */
+ lua_pushvalue(L,-1); /* stack: mt ubox u newud newud */
+ lua_insert(L,-4); /* stack: mt newud ubox u newud */
+ lua_rawset(L,-3); /* stack: mt newud ubox */
+ lua_pop(L,1); /* stack: mt newud */
+ /*luaL_getmetatable(L,type);*/
+ lua_pushvalue(L, -2); /* stack: mt newud mt */
+ lua_setmetatable(L,-2); /* stack: mt newud */
+
+ #ifdef LUA_VERSION_NUM
+ lua_pushvalue(L, TOLUA_NOPEER);
+ lua_setfenv(L, -2);
+ #endif
+ }
+ else
+ {
+ /* check the need of updating the metatable to a more specialized class */
+ lua_insert(L,-2); /* stack: mt ubox[u] ubox */
+ lua_pop(L,1); /* stack: mt ubox[u] */
+ lua_pushstring(L,"tolua_super");
+ lua_rawget(L,LUA_REGISTRYINDEX); /* stack: mt ubox[u] super */
+ lua_getmetatable(L,-2); /* stack: mt ubox[u] super mt */
+ lua_rawget(L,-2); /* stack: mt ubox[u] super super[mt] */
+ if (lua_istable(L,-1))
+ {
+ lua_pushstring(L,type); /* stack: mt ubox[u] super super[mt] type */
+ lua_rawget(L,-2); /* stack: mt ubox[u] super super[mt] flag */
+ if (lua_toboolean(L,-1) == 1) /* if true */
+ {
+ lua_pop(L,3); /* mt ubox[u]*/
+ lua_remove(L, -2);
+ return;
+ }
+ }
+ /* type represents a more specilized type */
+ /*luaL_getmetatable(L,type); // stack: mt ubox[u] super super[mt] flag mt */
+ lua_pushvalue(L, -5); /* stack: mt ubox[u] super super[mt] flag mt */
+ lua_setmetatable(L,-5); /* stack: mt ubox[u] super super[mt] flag */
+ lua_pop(L,3); /* stack: mt ubox[u] */
+ }
+ lua_remove(L, -2); /* stack: ubox[u]*/
+ }
+}
+
+TOLUA_API void tolua_pushusertype_and_takeownership (lua_State* L, void* value, const char* type)
+{
+ tolua_pushusertype(L,value,type);
+ tolua_register_gc(L,lua_gettop(L));
+}
+
+TOLUA_API void tolua_pushfieldvalue (lua_State* L, int lo, int index, int v)
+{
+ lua_pushnumber(L,index);
+ lua_pushvalue(L,v);
+ lua_settable(L,lo);
+}
+
+TOLUA_API void tolua_pushfieldboolean (lua_State* L, int lo, int index, int v)
+{
+ lua_pushnumber(L,index);
+ lua_pushboolean(L,v);
+ lua_settable(L,lo);
+}
+
+
+TOLUA_API void tolua_pushfieldnumber (lua_State* L, int lo, int index, lua_Number v)
+{
+ lua_pushnumber(L,index);
+ tolua_pushnumber(L,v);
+ lua_settable(L,lo);
+}
+
+TOLUA_API void tolua_pushfieldstring (lua_State* L, int lo, int index, const char* v)
+{
+ lua_pushnumber(L,index);
+ tolua_pushstring(L,v);
+ lua_settable(L,lo);
+}
+
+TOLUA_API void tolua_pushfielduserdata (lua_State* L, int lo, int index, void* v)
+{
+ lua_pushnumber(L,index);
+ tolua_pushuserdata(L,v);
+ lua_settable(L,lo);
+}
+
+TOLUA_API void tolua_pushfieldusertype (lua_State* L, int lo, int index, void* v, const char* type)
+{
+ lua_pushnumber(L,index);
+ tolua_pushusertype(L,v,type);
+ lua_settable(L,lo);
+}
+
+TOLUA_API void tolua_pushfieldusertype_and_takeownership (lua_State* L, int lo, int index, void* v, const char* type)
+{
+ lua_pushnumber(L,index);
+ tolua_pushusertype(L,v,type);
+ tolua_register_gc(L,lua_gettop(L));
+ lua_settable(L,lo);
+}
+