From 5dd3efcffb974206ac0515ef7d4b63ae3965ea56 Mon Sep 17 00:00:00 2001 From: Sehong Na Date: Sat, 31 May 2014 13:01:56 +0900 Subject: [PATCH] Initialize Tizen 2.3 --- CMakeLists.txt | 32 +++ COPYRIGHT | 33 +++ README | 30 +++ README-5.1 | 50 ++++ packaging/tolua++.spec | 58 ++++ tolua++.h | 186 +++++++++++++ tolua++.manifest | 5 + tolua_event.c | 536 +++++++++++++++++++++++++++++++++++++ tolua_event.h | 24 ++ tolua_is.c | 621 +++++++++++++++++++++++++++++++++++++++++++ tolua_map.c | 704 +++++++++++++++++++++++++++++++++++++++++++++++++ tolua_push.c | 171 ++++++++++++ tolua_to.c | 133 ++++++++++ 13 files changed, 2583 insertions(+) create mode 100755 CMakeLists.txt create mode 100644 COPYRIGHT create mode 100644 README create mode 100755 README-5.1 create mode 100755 packaging/tolua++.spec create mode 100644 tolua++.h create mode 100644 tolua++.manifest create mode 100644 tolua_event.c create mode 100644 tolua_event.h create mode 100644 tolua_is.c create mode 100644 tolua_map.c create mode 100644 tolua_push.c create mode 100644 tolua_to.c diff --git a/CMakeLists.txt b/CMakeLists.txt new file mode 100755 index 0000000..20e7e16 --- /dev/null +++ b/CMakeLists.txt @@ -0,0 +1,32 @@ +CMAKE_MINIMUM_REQUIRED(VERSION 2.6) + +PROJECT(tolua++) + +INCLUDE_DIRECTORIES( + /usr/include/ +) + +set(MODULE_DIR ${CMAKE_SOURCE_DIR}) + +SET (${PROJECT_NAME}_SOURCE_FILES + ${MODULE_DIR}/tolua_event.c + ${MODULE_DIR}/tolua_to.c + ${MODULE_DIR}/tolua_is.c + ${MODULE_DIR}/tolua_push.c + ${MODULE_DIR}/tolua_map.c +) + +LIST (APPEND SRCS ${${PROJECT_NAME}_SOURCE_FILES}) + +INCLUDE_DIRECTORIES( + ${MODULE_DIR} +) + +add_library(${PROJECT_NAME} STATIC ${SRCS}) + +SET(CMAKE_C_FLAGS "-fPIC ${OSP_DEBUG_FLAGS} ${OSP_OPT_FLAGS} ${CMAKE_C_FLAGS} ${EXTRA_CFLAGS} ${OSP_COMPILER_FLAGS}") +SET(CMAKE_CXX_FLAGS "-fPIC ${OSP_DEBUG_FLAGS} ${OSP_OPT_FLAGS} ${CMAKE_CXX_FLAGS} ${EXTRA_CFLAGS} ${OSP_COMPILER_FLAGS}") + +INSTALL(TARGETS ${PROJECT_NAME} DESTINATION lib) +INSTALL(FILES ${CMAKE_SOURCE_DIR}/tolua++.h DESTINATION include/) + diff --git a/COPYRIGHT b/COPYRIGHT new file mode 100644 index 0000000..9e99e00 --- /dev/null +++ b/COPYRIGHT @@ -0,0 +1,33 @@ +tolua++ License +--------------- + +tolua++ is based on toLua (www.tecgraf.puc-rio.br/~celes/tolua), and +it's licensed under the terms of the MIT license reproduced below. +This means that Lua is free software and can be used for both academic +and commercial purposes at absolutely no cost. + +=============================================================================== + +Copyright (C) 2009 Ariel Manzur. + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. + +=============================================================================== + +(end of COPYRIGHT) diff --git a/README b/README new file mode 100644 index 0000000..cee381f --- /dev/null +++ b/README @@ -0,0 +1,30 @@ +This is tolua++-1.0 + +* What is tolua++? + tolua++ is an extension of toLua, a tool to integrate C/C++ code with + Lua. tolua++ includes new features oriented to c++, such as class + templates. + + tolua is a tool that greatly simplifies the integration of C/C++ code + with Lua. Based on a "cleaned" header file, tolua automatically generates + the binding code to access C/C++ features from Lua. Using Lua-5.0 API and + metamethod facilities, the current version automatically maps C/C++ + constants, external variables, functions, namespace, classes, and methods + to Lua. It also provides facilities to create Lua modules. + +* Availability + + tolua++ is freely available for both academic and commercial purposes. + See COPYRIGHT for details. + + tolua++ can be downloaded from the sites below: + http://www.codenix.com/~tolua/ + +* Installation + See INSTALL. + +* Contacting the author + tolua has been designed and implemented by Waldemar Celes. + tolua++ is maintained by Ariel Manzur. + Send your comments, bug reports and anything else to + tolua@codenix.com diff --git a/README-5.1 b/README-5.1 new file mode 100755 index 0000000..f06f785 --- /dev/null +++ b/README-5.1 @@ -0,0 +1,50 @@ +Compiling for lua 5.1 +--------------------- + +Starting from version 1.0.8pre1, tolua++ can be compiled with both lua 5.0 and +5.1. Both versions will output the same code, and the C API (tolua++.h) is the +same. + +The build system is not yet ready to detect/decide when to compile for 5.1, +the easiest way right now is to add a file called 'custom.py' on the root of +the package, with the following: + +## BEGIN custom.py + +CCFLAGS = ['-I/usr/local/include/lua5.1', '-O2', '-ansi'] +LIBPATH = ['/usr/local/lib'] +LIBS = ['lua5.1', 'dl', 'm'] +tolua_bin = 'tolua++5.1' +tolua_lib = 'tolua++5.1' +TOLUAPP = 'tolua++5.1' + +## END custom.py + +This will build the binary as 'tolua++5.1' and the library as 'libtolua++5.1.a' +(taken from tolua_bin and tolua_lib), and take the lua headers and libraries +from /usr/local/include/lua5.1 and /usr/local/lib. It will also link with +'-llua5.1'. Modify the parameters acording to your system. + +Compatibility +------------- + +There are a couple of things to keep in mind when running code inside tolua +using the -L option: + +* `...' and arg: you can still use 'arg' on 5.1, this is done automatically by +adding the 'arg' declaration to functions on files loaded with dofile. + +For example, the line: + +function foo( ... ) + +becomes + +function foo( ... ) local arg = {n=select('#', ...), ...}; + +This lets you use the same code on both versions without having to make any +modifications. + +* keep in mind that there are slight differences on the way string.gsub works, +and the original version of the function is always kept, so it will behave +diffently depending on which version of lua you're using. diff --git a/packaging/tolua++.spec b/packaging/tolua++.spec new file mode 100755 index 0000000..c08ba1b --- /dev/null +++ b/packaging/tolua++.spec @@ -0,0 +1,58 @@ +Name: tolua++ +Summary: tolua++ package +Version: 1.0.93 +Release: 1 +Group: TO_BE/FILLED_IN +License: TO BE FILLED IN +Source0: %{name}-%{version}.tar.gz +BuildRequires: liblua-devel +BuildRequires: cmake + +%description +tolua++ package + +%package devel +Summary: tolua++ package (devel) +Group: Development/Libraries +Requires: %{name} = %{version}-%{release} + +%description devel +tolua++ package (devel) + +%prep +%setup -q + +%build +MAJORVER=`echo %{version} | awk 'BEGIN {FS="."}{print $1}'` +%ifarch %{ix86} +CXXFLAGS="$CXXFLAGS -D_OSP_DEBUG_ -D_OSP_X86_ -D_OSP_EMUL_" cmake . -DCMAKE_INSTALL_PREFIX=%{_prefix} -DOBS=1 -DFULLVER=%{version} -DMAJORVER=${MAJORVER} -DARCH=x86 +%else +CXXFLAGS="$CXXFLAGS -mthumb -Wa,-mimplicit-it=thumb -D_OSP_DEBUG_ -D_OSP_ARMEL_" cmake . -DCMAKE_INSTALL_PREFIX=%{_prefix} -DOBS=1 -DFULLVER=%{version} -DMAJORVER=${MAJORVER} -DARCH=arm +%endif + + +# Call make instruction with smp support +make %{?jobs:-j%jobs} + +%install +rm -rf %{buildroot} +mkdir -p %{buildroot}/usr/share/license +cp %{_builddir}/%{name}-%{version}/COPYRIGHT %{buildroot}/usr/share/license/%{name} + +%{__make} DESTDIR=%{?buildroot:%{buildroot}} INSTALL_ROOT=%{?buildroot:%{buildroot}} install +rm -f %{?buildroot:%{buildroot}}%{_infodir}/dir +find %{?buildroot:%{buildroot}} -regex ".*\\.la$" | xargs rm -f -- + +%post -p /sbin/ldconfig + +%postun -p /sbin/ldconfig + +%files +%manifest tolua++.manifest +%defattr(-,root,root,-) +/usr/share/license/%{name} + +%files devel +%defattr(-,root,root,-) +%{_includedir}/tolua++.h +%{_libdir}/libtolua++.a diff --git a/tolua++.h b/tolua++.h new file mode 100644 index 0000000..ed53449 --- /dev/null +++ b/tolua++.h @@ -0,0 +1,186 @@ +/* tolua +** 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. +*/ + + +#ifndef TOLUA_H +#define TOLUA_H + +#ifndef TOLUA_API +#define TOLUA_API extern +#endif + +#define TOLUA_VERSION "tolua++-1.0.92" + +#ifdef __cplusplus +extern "C" { +#endif + +#define tolua_pushcppstring(x,y) tolua_pushstring(x,y.c_str()) +#define tolua_iscppstring tolua_isstring + +#define tolua_iscppstringarray tolua_isstringarray +#define tolua_pushfieldcppstring(L,lo,idx,s) tolua_pushfieldstring(L, lo, idx, s.c_str()) + +#ifndef TEMPLATE_BIND + #define TEMPLATE_BIND(p) +#endif + +#define TOLUA_TEMPLATE_BIND(p) + +#define TOLUA_PROTECTED_DESTRUCTOR +#define TOLUA_PROPERTY_TYPE(p) + +typedef int lua_Object; + +#include "lua.h" +#include "lauxlib.h" + +struct tolua_Error +{ + int index; + int array; + const char* type; +}; +typedef struct tolua_Error tolua_Error; + +#define TOLUA_NOPEER LUA_REGISTRYINDEX /* for lua 5.1 */ + +TOLUA_API const char* tolua_typename (lua_State* L, int lo); +TOLUA_API void tolua_error (lua_State* L, const char* msg, tolua_Error* err); +TOLUA_API int tolua_isnoobj (lua_State* L, int lo, tolua_Error* err); +TOLUA_API int tolua_isvalue (lua_State* L, int lo, int def, tolua_Error* err); +TOLUA_API int tolua_isvaluenil (lua_State* L, int lo, tolua_Error* err); +TOLUA_API int tolua_isboolean (lua_State* L, int lo, int def, tolua_Error* err); +TOLUA_API int tolua_isnumber (lua_State* L, int lo, int def, tolua_Error* err); +TOLUA_API int tolua_isstring (lua_State* L, int lo, int def, tolua_Error* err); +TOLUA_API int tolua_istable (lua_State* L, int lo, int def, tolua_Error* err); +TOLUA_API int tolua_isusertable (lua_State* L, int lo, const char* type, int def, tolua_Error* err); +TOLUA_API int tolua_isuserdata (lua_State* L, int lo, int def, tolua_Error* err); +TOLUA_API int tolua_isusertype (lua_State* L, int lo, const char* type, int def, tolua_Error* err); +TOLUA_API int tolua_isvaluearray + (lua_State* L, int lo, int dim, int def, tolua_Error* err); +TOLUA_API int tolua_isbooleanarray + (lua_State* L, int lo, int dim, int def, tolua_Error* err); +TOLUA_API int tolua_isnumberarray + (lua_State* L, int lo, int dim, int def, tolua_Error* err); +TOLUA_API int tolua_isstringarray + (lua_State* L, int lo, int dim, int def, tolua_Error* err); +TOLUA_API int tolua_istablearray + (lua_State* L, int lo, int dim, int def, tolua_Error* err); +TOLUA_API int tolua_isuserdataarray + (lua_State* L, int lo, int dim, int def, tolua_Error* err); +TOLUA_API int tolua_isusertypearray + (lua_State* L, int lo, const char* type, int dim, int def, tolua_Error* err); + +TOLUA_API void tolua_open (lua_State* L); + +TOLUA_API void* tolua_copy (lua_State* L, void* value, unsigned int size); +TOLUA_API int tolua_register_gc (lua_State* L, int lo); +TOLUA_API int tolua_default_collect (lua_State* tolua_S); + +TOLUA_API void tolua_usertype (lua_State* L, const char* type); +TOLUA_API void tolua_beginmodule (lua_State* L, const char* name); +TOLUA_API void tolua_endmodule (lua_State* L); +TOLUA_API void tolua_module (lua_State* L, const char* name, int hasvar); +TOLUA_API void tolua_class (lua_State* L, const char* name, const char* base); +TOLUA_API void tolua_cclass (lua_State* L, const char* lname, const char* name, const char* base, lua_CFunction col); +TOLUA_API void tolua_function (lua_State* L, const char* name, lua_CFunction func); +TOLUA_API void tolua_constant (lua_State* L, const char* name, lua_Number value); +TOLUA_API void tolua_variable (lua_State* L, const char* name, lua_CFunction get, lua_CFunction set); +TOLUA_API void tolua_array (lua_State* L,const char* name, lua_CFunction get, lua_CFunction set); + +/* TOLUA_API void tolua_set_call_event(lua_State* L, lua_CFunction func, char* type); */ +/* TOLUA_API void tolua_addbase(lua_State* L, char* name, char* base); */ + +TOLUA_API void tolua_pushvalue (lua_State* L, int lo); +TOLUA_API void tolua_pushboolean (lua_State* L, int value); +TOLUA_API void tolua_pushnumber (lua_State* L, lua_Number value); +TOLUA_API void tolua_pushstring (lua_State* L, const char* value); +TOLUA_API void tolua_pushuserdata (lua_State* L, void* value); +TOLUA_API void tolua_pushusertype (lua_State* L, void* value, const char* type); +TOLUA_API void tolua_pushusertype_and_takeownership(lua_State* L, void* value, const char* type); +TOLUA_API void tolua_pushfieldvalue (lua_State* L, int lo, int index, int v); +TOLUA_API void tolua_pushfieldboolean (lua_State* L, int lo, int index, int v); +TOLUA_API void tolua_pushfieldnumber (lua_State* L, int lo, int index, lua_Number v); +TOLUA_API void tolua_pushfieldstring (lua_State* L, int lo, int index, const char* v); +TOLUA_API void tolua_pushfielduserdata (lua_State* L, int lo, int index, void* v); +TOLUA_API void tolua_pushfieldusertype (lua_State* L, int lo, int index, void* v, const char* type); +TOLUA_API void tolua_pushfieldusertype_and_takeownership (lua_State* L, int lo, int index, void* v, const char* type); + +TOLUA_API lua_Number tolua_tonumber (lua_State* L, int narg, lua_Number def); +TOLUA_API const char* tolua_tostring (lua_State* L, int narg, const char* def); +TOLUA_API void* tolua_touserdata (lua_State* L, int narg, void* def); +TOLUA_API void* tolua_tousertype (lua_State* L, int narg, void* def); +TOLUA_API int tolua_tovalue (lua_State* L, int narg, int def); +TOLUA_API int tolua_toboolean (lua_State* L, int narg, int def); +TOLUA_API lua_Number tolua_tofieldnumber (lua_State* L, int lo, int index, lua_Number def); +TOLUA_API const char* tolua_tofieldstring (lua_State* L, int lo, int index, const char* def); +TOLUA_API void* tolua_tofielduserdata (lua_State* L, int lo, int index, void* def); +TOLUA_API void* tolua_tofieldusertype (lua_State* L, int lo, int index, void* def); +TOLUA_API int tolua_tofieldvalue (lua_State* L, int lo, int index, int def); +TOLUA_API int tolua_getfieldboolean (lua_State* L, int lo, int index, int def); + +TOLUA_API void tolua_dobuffer(lua_State* L, char* B, unsigned int size, const char* name); + +TOLUA_API int class_gc_event (lua_State* L); + +#ifdef __cplusplus +static inline const char* tolua_tocppstring (lua_State* L, int narg, const char* def) { + + const char* s = tolua_tostring(L, narg, def); + return s?s:""; +}; + +static inline const char* tolua_tofieldcppstring (lua_State* L, int lo, int index, const char* def) { + + const char* s = tolua_tofieldstring(L, lo, index, def); + return s?s:""; +}; + +#else +#define tolua_tocppstring tolua_tostring +#define tolua_tofieldcppstring tolua_tofieldstring +#endif + +TOLUA_API int tolua_fast_isa(lua_State *L, int mt_indexa, int mt_indexb, int super_index); + +#ifndef Mtolua_new +#define Mtolua_new(EXP) new EXP +#endif + +#ifndef Mtolua_delete +#define Mtolua_delete(EXP) delete EXP +#endif + +#ifndef Mtolua_new_dim +#define Mtolua_new_dim(EXP, len) new EXP[len] +#endif + +#ifndef Mtolua_delete_dim +#define Mtolua_delete_dim(EXP) delete [] EXP +#endif + +#ifndef tolua_outside +#define tolua_outside +#endif + +#ifndef tolua_owned +#define tolua_owned +#endif + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/tolua++.manifest b/tolua++.manifest new file mode 100644 index 0000000..ae3e6f7 --- /dev/null +++ b/tolua++.manifest @@ -0,0 +1,5 @@ + + + + + \ No newline at end of file diff --git a/tolua_event.c b/tolua_event.c new file mode 100644 index 0000000..8258867 --- /dev/null +++ b/tolua_event.c @@ -0,0 +1,536 @@ +/* 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 + +#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); +} + diff --git a/tolua_event.h b/tolua_event.h new file mode 100644 index 0000000..898f33d --- /dev/null +++ b/tolua_event.h @@ -0,0 +1,24 @@ +/* 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. +*/ + +#ifndef TOLUA_EVENT_H +#define TOLUA_EVENT_H + +#include "tolua++.h" + +TOLUA_API void tolua_moduleevents (lua_State* L); +TOLUA_API int tolua_ismodulemetatable (lua_State* L); +TOLUA_API void tolua_classevents (lua_State* L); + +#endif diff --git a/tolua_is.c b/tolua_is.c new file mode 100644 index 0000000..add337d --- /dev/null +++ b/tolua_is.c @@ -0,0 +1,621 @@ +/* tolua: functions to check types. +** 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 +#include + +/* a fast check if a is b, without parameter validation + i.e. if b is equal to a or a superclass of a. */ +TOLUA_API int tolua_fast_isa(lua_State *L, int mt_indexa, int mt_indexb, int super_index) +{ + int result; + if (lua_rawequal(L,mt_indexa,mt_indexb)) + result = 1; + else + { + if (super_index) { + lua_pushvalue(L, super_index); + } else { + lua_pushliteral(L,"tolua_super"); + lua_rawget(L,LUA_REGISTRYINDEX); /* stack: super */ + }; + lua_pushvalue(L,mt_indexa); /* stack: super mta */ + lua_rawget(L,-2); /* stack: super super[mta] */ + lua_pushvalue(L,mt_indexb); /* stack: super super[mta] mtb */ + lua_rawget(L,LUA_REGISTRYINDEX); /* stack: super super[mta] typenameB */ + lua_rawget(L,-2); /* stack: super super[mta] bool */ + result = lua_toboolean(L,-1); + lua_pop(L,3); + } + return result; +} + +/* Push and returns the corresponding object typename */ +TOLUA_API const char* tolua_typename (lua_State* L, int lo) +{ + int tag = lua_type(L,lo); + if (tag == LUA_TNONE) + lua_pushstring(L,"[no object]"); + else if (tag != LUA_TUSERDATA && tag != LUA_TTABLE) + lua_pushstring(L,lua_typename(L,tag)); + else if (tag == LUA_TUSERDATA) + { + if (!lua_getmetatable(L,lo)) + lua_pushstring(L,lua_typename(L,tag)); + else + { + lua_rawget(L,LUA_REGISTRYINDEX); + if (!lua_isstring(L,-1)) + { + lua_pop(L,1); + lua_pushstring(L,"[undefined]"); + } + } + } + else /* is table */ + { + lua_pushvalue(L,lo); + lua_rawget(L,LUA_REGISTRYINDEX); + if (!lua_isstring(L,-1)) + { + lua_pop(L,1); + lua_pushstring(L,"table"); + } + else + { + lua_pushstring(L,"class "); + lua_insert(L,-2); + lua_concat(L,2); + } + } + return lua_tostring(L,-1); +} + +TOLUA_API void tolua_error (lua_State* L, const char* msg, tolua_Error* err) +{ + if (msg[0] == '#') + { + const char* expected = err->type; + const char* provided = tolua_typename(L,err->index); + if (msg[1]=='f') + { + int narg = err->index; + if (err->array) + luaL_error(L,"%s\n argument #%d is array of '%s'; array of '%s' expected.\n", + msg+2,narg,provided,expected); + else + luaL_error(L,"%s\n argument #%d is '%s'; '%s' expected.\n", + msg+2,narg,provided,expected); + } + else if (msg[1]=='v') + { + if (err->array) + luaL_error(L,"%s\n value is array of '%s'; array of '%s' expected.\n", + msg+2,provided,expected); + else + luaL_error(L,"%s\n value is '%s'; '%s' expected.\n", + msg+2,provided,expected); + } + } + else + luaL_error(L,msg); +} + +/* the equivalent of lua_is* for usertable */ +static int lua_isusertable (lua_State* L, int lo, const const char* type) +{ + int r = 0; + if (lo < 0) lo = lua_gettop(L)+lo+1; + lua_pushvalue(L,lo); + lua_rawget(L,LUA_REGISTRYINDEX); /* get registry[t] */ + if (lua_isstring(L,-1)) + { + r = strcmp(lua_tostring(L,-1),type)==0; + if (!r) + { + /* try const */ + lua_pushstring(L,"const "); + lua_insert(L,-2); + lua_concat(L,2); + r = lua_isstring(L,-1) && strcmp(lua_tostring(L,-1),type)==0; + } + } + lua_pop(L, 1); + return r; +} + +int push_table_instance(lua_State* L, int lo) { + + if (lua_istable(L, lo)) { + + lua_pushstring(L, ".c_instance"); + lua_gettable(L, lo); + if (lua_isuserdata(L, -1)) { + + lua_replace(L, lo); + return 1; + } else { + + lua_pop(L, 1); + return 0; + }; + } else { + return 0; + }; + + return 0; +}; + +/* the equivalent of lua_is* for usertype */ +static int lua_isusertype (lua_State* L, int lo, const char* type) +{ + if (!lua_isuserdata(L,lo)) { + if (!push_table_instance(L, lo)) { + return 0; + }; + }; + { + /* check if it is of the same type */ + int r; + const char *tn; + if (lua_getmetatable(L,lo)) /* if metatable? */ + { + lua_rawget(L,LUA_REGISTRYINDEX); /* get registry[mt] */ + tn = lua_tostring(L,-1); + r = tn && (strcmp(tn,type) == 0); + lua_pop(L, 1); + if (r) + return 1; + else + { + /* check if it is a specialized class */ + lua_pushstring(L,"tolua_super"); + lua_rawget(L,LUA_REGISTRYINDEX); /* get super */ + lua_getmetatable(L,lo); + lua_rawget(L,-2); /* get super[mt] */ + if (lua_istable(L,-1)) + { + int b; + lua_pushstring(L,type); + lua_rawget(L,-2); /* get super[mt][type] */ + b = lua_toboolean(L,-1); + lua_pop(L,3); + if (b) + return 1; + } + } + } + } + return 0; +} + +TOLUA_API int tolua_isnoobj (lua_State* L, int lo, tolua_Error* err) +{ + if (lua_gettop(L)index = lo; + err->array = 0; + err->type = "[no object]"; + return 0; +} + +TOLUA_API int tolua_isboolean (lua_State* L, int lo, int def, tolua_Error* err) +{ + if (def && lua_gettop(L)index = lo; + err->array = 0; + err->type = "boolean"; + return 0; +} + +TOLUA_API int tolua_isnumber (lua_State* L, int lo, int def, tolua_Error* err) +{ + if (def && lua_gettop(L)index = lo; + err->array = 0; + err->type = "number"; + return 0; +} + +TOLUA_API int tolua_isstring (lua_State* L, int lo, int def, tolua_Error* err) +{ + if (def && lua_gettop(L)index = lo; + err->array = 0; + err->type = "string"; + return 0; +} + +TOLUA_API int tolua_istable (lua_State* L, int lo, int def, tolua_Error* err) +{ + if (def && lua_gettop(L)index = lo; + err->array = 0; + err->type = "table"; + return 0; +} + +TOLUA_API int tolua_isusertable (lua_State* L, int lo, const char* type, int def, tolua_Error* err) +{ + if (def && lua_gettop(L)index = lo; + err->array = 0; + err->type = type; + return 0; +} + + +TOLUA_API int tolua_isuserdata (lua_State* L, int lo, int def, tolua_Error* err) +{ + if (def && lua_gettop(L)index = lo; + err->array = 0; + err->type = "userdata"; + return 0; +} + +TOLUA_API int tolua_isvaluenil (lua_State* L, int lo, tolua_Error* err) { + + if (lua_gettop(L)index = lo; + err->array = 0; + err->type = "value"; + return 1; +}; + +TOLUA_API int tolua_isvalue (lua_State* L, int lo, int def, tolua_Error* err) +{ + if (def || abs(lo)<=lua_gettop(L)) /* any valid index */ + return 1; + err->index = lo; + err->array = 0; + err->type = "value"; + return 0; +} + +TOLUA_API int tolua_isusertype (lua_State* L, int lo, const char* type, int def, tolua_Error* err) +{ + if (def && lua_gettop(L)index = lo; + err->array = 0; + err->type = type; + return 0; +} + +TOLUA_API int tolua_isvaluearray + (lua_State* L, int lo, int dim, int def, tolua_Error* err) +{ + if (!tolua_istable(L,lo,def,err)) + return 0; + else + return 1; +} + +TOLUA_API int tolua_isbooleanarray + (lua_State* L, int lo, int dim, int def, tolua_Error* err) +{ + if (!tolua_istable(L,lo,def,err)) + return 0; + else + { + int i; + for (i=1; i<=dim; ++i) + { + lua_pushnumber(L,i); + lua_gettable(L,lo); + if (!(lua_isnil(L,-1) || lua_isboolean(L,-1)) && + !(def && lua_isnil(L,-1)) + ) + { + err->index = lo; + err->array = 1; + err->type = "boolean"; + return 0; + } + lua_pop(L,1); + } + } + return 1; +} + +TOLUA_API int tolua_isnumberarray + (lua_State* L, int lo, int dim, int def, tolua_Error* err) +{ + if (!tolua_istable(L,lo,def,err)) + return 0; + else + { + int i; + for (i=1; i<=dim; ++i) + { + lua_pushnumber(L,i); + lua_gettable(L,lo); + if (!lua_isnumber(L,-1) && + !(def && lua_isnil(L,-1)) + ) + { + err->index = lo; + err->array = 1; + err->type = "number"; + return 0; + } + lua_pop(L,1); + } + } + return 1; +} + +TOLUA_API int tolua_isstringarray + (lua_State* L, int lo, int dim, int def, tolua_Error* err) +{ + if (!tolua_istable(L,lo,def,err)) + return 0; + else + { + int i; + for (i=1; i<=dim; ++i) + { + lua_pushnumber(L,i); + lua_gettable(L,lo); + if (!(lua_isnil(L,-1) || lua_isstring(L,-1)) && + !(def && lua_isnil(L,-1)) + ) + { + err->index = lo; + err->array = 1; + err->type = "string"; + return 0; + } + lua_pop(L,1); + } + } + return 1; +} + +TOLUA_API int tolua_istablearray + (lua_State* L, int lo, int dim, int def, tolua_Error* err) +{ + if (!tolua_istable(L,lo,def,err)) + return 0; + else + { + int i; + for (i=1; i<=dim; ++i) + { + lua_pushnumber(L,i); + lua_gettable(L,lo); + if (! lua_istable(L,-1) && + !(def && lua_isnil(L,-1)) + ) + { + err->index = lo; + err->array = 1; + err->type = "table"; + return 0; + } + lua_pop(L,1); + } + } + return 1; +} + +TOLUA_API int tolua_isuserdataarray + (lua_State* L, int lo, int dim, int def, tolua_Error* err) +{ + if (!tolua_istable(L,lo,def,err)) + return 0; + else + { + int i; + for (i=1; i<=dim; ++i) + { + lua_pushnumber(L,i); + lua_gettable(L,lo); + if (!(lua_isnil(L,-1) || lua_isuserdata(L,-1)) && + !(def && lua_isnil(L,-1)) + ) + { + err->index = lo; + err->array = 1; + err->type = "userdata"; + return 0; + } + lua_pop(L,1); + } + } + return 1; +} + +TOLUA_API int tolua_isusertypearray + (lua_State* L, int lo, const char* type, int dim, int def, tolua_Error* err) +{ + if (!tolua_istable(L,lo,def,err)) + return 0; + else + { + int i; + for (i=1; i<=dim; ++i) + { + lua_pushnumber(L,i); + lua_gettable(L,lo); + if (!(lua_isnil(L,-1) || lua_isuserdata(L,-1)) && + !(def && lua_isnil(L,-1)) + ) + { + err->index = lo; + err->type = type; + err->array = 1; + return 0; + } + lua_pop(L,1); + } + } + return 1; +} + +#if 0 +int tolua_isbooleanfield + (lua_State* L, int lo, int i, int def, tolua_Error* err) +{ + lua_pushnumber(L,i); + lua_gettable(L,lo); + if (!(lua_isnil(L,-1) || lua_isboolean(L,-1)) && + !(def && lua_isnil(L,-1)) + ) + { + err->index = lo; + err->array = 1; + err->type = "boolean"; + return 0; + } + lua_pop(L,1); + return 1; +} + +int tolua_isnumberfield + (lua_State* L, int lo, int i, int def, tolua_Error* err) +{ + lua_pushnumber(L,i); + lua_gettable(L,lo); + if (!lua_isnumber(L,-1) && + !(def && lua_isnil(L,-1)) + ) + { + err->index = lo; + err->array = 1; + err->type = "number"; + return 0; + } + lua_pop(L,1); + return 1; +} + +int tolua_isstringfield + (lua_State* L, int lo, int i, int def, tolua_Error* err) +{ + lua_pushnumber(L,i); + lua_gettable(L,lo); + if (!(lua_isnil(L,-1) || lua_isstring(L,-1)) && + !(def && lua_isnil(L,-1)) + ) + { + err->index = lo; + err->array = 1; + err->type = "string"; + return 0; + } + lua_pop(L,1); + return 1; +} + +int tolua_istablefield + (lua_State* L, int lo, int i, int def, tolua_Error* err) +{ + lua_pushnumber(L,i+1); + lua_gettable(L,lo); + if (! lua_istable(L,-1) && + !(def && lua_isnil(L,-1)) + ) + { + err->index = lo; + err->array = 1; + err->type = "table"; + return 0; + } + lua_pop(L,1); +} + +int tolua_isusertablefield + (lua_State* L, int lo, const char* type, int i, int def, tolua_Error* err) +{ + lua_pushnumber(L,i); + lua_gettable(L,lo); + if (! lua_isusertable(L,-1,type) && + !(def && lua_isnil(L,-1)) + ) + { + err->index = lo; + err->array = 1; + err->type = type; + return 0; + } + lua_pop(L,1); + return 1; +} + +int tolua_isuserdatafield + (lua_State* L, int lo, int i, int def, tolua_Error* err) +{ + lua_pushnumber(L,i); + lua_gettable(L,lo); + if (!(lua_isnil(L,-1) || lua_isuserdata(L,-1)) && + !(def && lua_isnil(L,-1)) + ) + { + err->index = lo; + err->array = 1; + err->type = "userdata"; + return 0; + } + lua_pop(L,1); + return 1; +} + +int tolua_isusertypefield + (lua_State* L, int lo, const char* type, int i, int def, tolua_Error* err) +{ + lua_pushnumber(L,i); + lua_gettable(L,lo); + if (!(lua_isnil(L,-1) || lua_isusertype(L,-1,type)) && + !(def && lua_isnil(L,-1)) + ) + { + err->index = lo; + err->type = type; + err->array = 1; + return 0; + } + lua_pop(L,1); + return 1; +} + +#endif diff --git a/tolua_map.c b/tolua_map.c new file mode 100644 index 0000000..d00e706 --- /dev/null +++ b/tolua_map.c @@ -0,0 +1,704 @@ +/* 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 +#include +#include +#include + + +/* 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: */ +} + +/* 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 +}; + diff --git a/tolua_push.c b/tolua_push.c new file mode 100644 index 0000000..6394147 --- /dev/null +++ b/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 + +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); +} + diff --git a/tolua_to.c b/tolua_to.c new file mode 100644 index 0000000..542ca67 --- /dev/null +++ b/tolua_to.c @@ -0,0 +1,133 @@ +/* tolua: funcitons to convert to C types +** 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 +#include + +TOLUA_API lua_Number tolua_tonumber (lua_State* L, int narg, lua_Number def) +{ + return lua_gettop(L)