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755 lines
25 KiB
755 lines
25 KiB
5 years ago
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/* -----------------------------------------------------------------------------
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* See the LICENSE file for information on copyright, usage and redistribution
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* of SWIG, and the README file for authors - http://www.swig.org/release.html.
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*
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* luarun.swg
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*
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* This file contains the runtime support for Lua modules
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* and includes code for managing global variables and pointer
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* type checking.
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* ----------------------------------------------------------------------------- */
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "lua.h"
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#include "lauxlib.h"
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#include <stdlib.h> /* for malloc */
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#include <assert.h> /* for a few sanity tests */
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/* -----------------------------------------------------------------------------
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* global swig types
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* ----------------------------------------------------------------------------- */
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/* Constant table */
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#define SWIG_LUA_INT 1
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#define SWIG_LUA_FLOAT 2
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#define SWIG_LUA_STRING 3
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#define SWIG_LUA_POINTER 4
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#define SWIG_LUA_BINARY 5
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#define SWIG_LUA_CHAR 6
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/* Structure for variable linking table */
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typedef struct {
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const char *name;
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lua_CFunction get;
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lua_CFunction set;
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} swig_lua_var_info;
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/* Constant information structure */
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typedef struct {
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int type;
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char *name;
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long lvalue;
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double dvalue;
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void *pvalue;
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swig_type_info **ptype;
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} swig_lua_const_info;
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typedef struct {
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const char *name;
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lua_CFunction method;
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} swig_lua_method;
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typedef struct {
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const char *name;
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lua_CFunction getmethod;
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lua_CFunction setmethod;
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} swig_lua_attribute;
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typedef struct swig_lua_class {
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const char *name;
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swig_type_info **type;
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lua_CFunction constructor;
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void (*destructor)(void *);
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swig_lua_method *methods;
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swig_lua_attribute *attributes;
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struct swig_lua_class **bases;
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const char **base_names;
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} swig_lua_class;
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/* this is the struct for wrappering all pointers in SwigLua
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*/
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typedef struct {
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swig_type_info *type;
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int own; /* 1 if owned & must be destroyed */
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void *ptr;
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} swig_lua_userdata;
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/* this is the struct for wrapping arbitary packed binary data
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(currently it is only used for member function pointers)
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the data ordering is similar to swig_lua_userdata, but it is currently not possible
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to tell the two structures apart within Swig, other than by looking at the type
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*/
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typedef struct {
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swig_type_info *type;
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int own; /* 1 if owned & must be destroyed */
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char data[1]; /* arbitary amount of data */
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} swig_lua_rawdata;
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/* Common SWIG API */
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#define SWIG_NewPointerObj(L, ptr, type, owner) SWIG_Lua_NewPointerObj(L, (void *)ptr, type, owner)
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#define SWIG_ConvertPtr(L,idx, ptr, type, flags) SWIG_Lua_ConvertPtr(L,idx,ptr,type,flags)
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#define SWIG_MustGetPtr(L,idx, type,flags, argnum,fnname) SWIG_Lua_MustGetPtr(L,idx, type,flags, argnum,fnname)
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/* for C++ member pointers, ie, member methods */
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#define SWIG_ConvertMember(L, idx, ptr, sz, ty) SWIG_Lua_ConvertPacked(L, idx, ptr, sz, ty)
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#define SWIG_NewMemberObj(L, ptr, sz, type) SWIG_Lua_NewPackedObj(L, ptr, sz, type)
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/* Runtime API */
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#define SWIG_GetModule(clientdata) SWIG_Lua_GetModule((lua_State*)(clientdata))
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#define SWIG_SetModule(clientdata, pointer) SWIG_Lua_SetModule((lua_State*) (clientdata), pointer)
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#define SWIG_MODULE_CLIENTDATA_TYPE lua_State*
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/* Contract support */
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#define SWIG_contract_assert(expr, msg) \
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if (!(expr)) { lua_pushstring(L, (char *) msg); goto fail; } else
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/* helper #defines */
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#define SWIG_fail {goto fail;}
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#define SWIG_fail_arg(func_name,argnum,type) \
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{lua_pushfstring(L,"Error in %s (arg %d), expected '%s' got '%s'",\
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func_name,argnum,type,SWIG_Lua_typename(L,argnum));\
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goto fail;}
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#define SWIG_fail_ptr(func_name,argnum,type) \
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SWIG_fail_arg(func_name,argnum,(type && type->str)?type->str:"void*")
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#define SWIG_check_num_args(func_name,a,b) \
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if (lua_gettop(L)<a || lua_gettop(L)>b) \
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{lua_pushfstring(L,"Error in %s expected %d..%d args, got %d",func_name,a,b,lua_gettop(L));\
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goto fail;}
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#define SWIG_Lua_get_table(L,n) \
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(lua_pushstring(L, n), lua_rawget(L,-2))
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#define SWIG_Lua_add_function(L,n,f) \
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(lua_pushstring(L, n), \
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lua_pushcfunction(L, f), \
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lua_rawset(L,-3))
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/* special helper for allowing 'nil' for usertypes */
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#define SWIG_isptrtype(L,I) (lua_isuserdata(L,I) || lua_isnil(L,I))
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#ifdef __cplusplus
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/* Special helper for member function pointers
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it gets the address, casts it, then dereferences it */
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//#define SWIG_mem_fn_as_voidptr(a) (*((char**)&(a)))
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#endif
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/* storing/access of swig_module_info */
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SWIGRUNTIME swig_module_info *
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SWIG_Lua_GetModule(lua_State* L) {
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swig_module_info *ret = 0;
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lua_pushstring(L,"swig_runtime_data_type_pointer" SWIG_RUNTIME_VERSION SWIG_TYPE_TABLE_NAME);
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lua_rawget(L,LUA_REGISTRYINDEX);
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if (lua_islightuserdata(L,-1))
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ret=(swig_module_info*)lua_touserdata(L,-1);
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lua_pop(L,1); /* tidy */
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return ret;
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}
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SWIGRUNTIME void
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SWIG_Lua_SetModule(lua_State* L, swig_module_info *module) {
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/* add this all into the Lua registry: */
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lua_pushstring(L,"swig_runtime_data_type_pointer" SWIG_RUNTIME_VERSION SWIG_TYPE_TABLE_NAME);
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lua_pushlightuserdata(L,(void*)module);
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lua_rawset(L,LUA_REGISTRYINDEX);
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}
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/* -----------------------------------------------------------------------------
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* global variable support code: modules
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* ----------------------------------------------------------------------------- */
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/* this function is called when trying to set an immutable.
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default value is to print an error.
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This can removed with a compile flag SWIGLUA_IGNORE_SET_IMMUTABLE */
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SWIGINTERN int SWIG_Lua_set_immutable(lua_State* L)
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{
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/* there should be 1 param passed in: the new value */
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#ifndef SWIGLUA_IGNORE_SET_IMMUTABLE
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lua_pop(L,1); /* remove it */
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lua_pushstring(L,"This variable is immutable");
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lua_error(L);
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#endif
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return 0; /* should not return anything */
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}
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/* the module.get method used for getting linked data */
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SWIGINTERN int SWIG_Lua_module_get(lua_State* L)
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{
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/* there should be 2 params passed in
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(1) table (not the meta table)
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(2) string name of the attribute
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printf("SWIG_Lua_module_get %p(%s) '%s'\n",
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lua_topointer(L,1),lua_typename(L,lua_type(L,1)),
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lua_tostring(L,2));
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*/
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/* get the metatable */
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assert(lua_istable(L,1)); /* just in case */
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lua_getmetatable(L,1); /* get the metatable */
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assert(lua_istable(L,-1)); /* just in case */
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SWIG_Lua_get_table(L,".get"); /* get the .get table */
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lua_remove(L,3); /* remove metatable */
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if (lua_istable(L,-1))
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{
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/* look for the key in the .get table */
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lua_pushvalue(L,2); /* key */
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lua_rawget(L,-2);
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lua_remove(L,3); /* remove .get */
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if (lua_iscfunction(L,-1))
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{ /* found it so call the fn & return its value */
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lua_call(L,0,1);
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return 1;
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}
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lua_pop(L,1); /* remove the top */
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}
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lua_pop(L,1); /* remove the .get */
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lua_pushnil(L); /* return a nil */
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return 1;
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}
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/* the module.set method used for setting linked data */
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SWIGINTERN int SWIG_Lua_module_set(lua_State* L)
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{
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/* there should be 3 params passed in
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(1) table (not the meta table)
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(2) string name of the attribute
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(3) any for the new value
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*/
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/* get the metatable */
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assert(lua_istable(L,1)); /* just in case */
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lua_getmetatable(L,1); /* get the metatable */
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assert(lua_istable(L,-1)); /* just in case */
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SWIG_Lua_get_table(L,".set"); /* get the .set table */
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lua_remove(L,4); /* remove metatable */
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if (lua_istable(L,-1))
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{
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/* look for the key in the .set table */
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lua_pushvalue(L,2); /* key */
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lua_rawget(L,-2);
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lua_remove(L,4); /* remove .set */
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|
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if (lua_iscfunction(L,-1))
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{ /* found it so call the fn & return its value */
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lua_pushvalue(L,3); /* value */
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lua_call(L,1,0);
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return 0;
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}
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}
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lua_settop(L,3); /* reset back to start */
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/* we now have the table, key & new value, so just set directly */
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lua_rawset(L,1); /* add direct */
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return 0;
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}
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|
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/* registering a module in lua */
|
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|
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SWIGINTERN void SWIG_Lua_module_begin(lua_State* L,const char* name)
|
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|
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{
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assert(lua_istable(L,-1)); /* just in case */
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lua_pushstring(L,name);
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lua_newtable(L); /* the table */
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|
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/* add meta table */
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lua_newtable(L); /* the meta table */
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SWIG_Lua_add_function(L,"__index",SWIG_Lua_module_get);
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SWIG_Lua_add_function(L,"__newindex",SWIG_Lua_module_set);
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lua_pushstring(L,".get");
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lua_newtable(L); /* the .get table */
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|
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lua_rawset(L,-3); /* add .get into metatable */
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lua_pushstring(L,".set");
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lua_newtable(L); /* the .set table */
|
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|
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lua_rawset(L,-3); /* add .set into metatable */
|
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|
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lua_setmetatable(L,-2); /* sets meta table in module */
|
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|
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lua_rawset(L,-3); /* add module into parent */
|
||
|
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SWIG_Lua_get_table(L,name); /* get the table back out */
|
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|
|
}
|
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|
|
|
||
|
|
/* ending the register */
|
||
|
|
SWIGINTERN void SWIG_Lua_module_end(lua_State* L)
|
||
|
|
{
|
||
|
|
lua_pop(L,1); /* tidy stack (remove module) */
|
||
|
|
}
|
||
|
|
|
||
|
|
/* adding a linked variable to the module */
|
||
|
|
SWIGINTERN void SWIG_Lua_module_add_variable(lua_State* L,const char* name,lua_CFunction getFn,lua_CFunction setFn)
|
||
|
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{
|
||
|
|
assert(lua_istable(L,-1)); /* just in case */
|
||
|
|
lua_getmetatable(L,-1); /* get the metatable */
|
||
|
|
assert(lua_istable(L,-1)); /* just in case */
|
||
|
|
SWIG_Lua_get_table(L,".get"); /* find the .get table */
|
||
|
|
assert(lua_istable(L,-1)); /* should be a table: */
|
||
|
|
SWIG_Lua_add_function(L,name,getFn);
|
||
|
|
lua_pop(L,1); /* tidy stack (remove table) */
|
||
|
|
if (setFn) /* if there is a set fn */
|
||
|
|
{
|
||
|
|
SWIG_Lua_get_table(L,".set"); /* find the .set table */
|
||
|
|
assert(lua_istable(L,-1)); /* should be a table: */
|
||
|
|
SWIG_Lua_add_function(L,name,setFn);
|
||
|
|
lua_pop(L,1); /* tidy stack (remove table) */
|
||
|
|
}
|
||
|
|
lua_pop(L,1); /* tidy stack (remove meta) */
|
||
|
|
}
|
||
|
|
|
||
|
|
/* adding a function module */
|
||
|
|
SWIGINTERN void SWIG_Lua_module_add_function(lua_State* L,const char* name,lua_CFunction fn)
|
||
|
|
{
|
||
|
|
SWIG_Lua_add_function(L,name,fn);
|
||
|
|
}
|
||
|
|
|
||
|
|
/* -----------------------------------------------------------------------------
|
||
|
|
* global variable support code: classes
|
||
|
|
* ----------------------------------------------------------------------------- */
|
||
|
|
|
||
|
|
/* the class.get method, performs the lookup of class attributes */
|
||
|
|
SWIGINTERN int SWIG_Lua_class_get(lua_State* L)
|
||
|
|
{
|
||
|
|
/* there should be 2 params passed in
|
||
|
|
(1) userdata (not the meta table)
|
||
|
|
(2) string name of the attribute
|
||
|
|
*/
|
||
|
|
assert(lua_isuserdata(L,-2)); /* just in case */
|
||
|
|
lua_getmetatable(L,-2); /* get the meta table */
|
||
|
|
assert(lua_istable(L,-1)); /* just in case */
|
||
|
|
SWIG_Lua_get_table(L,".get"); /* find the .get table */
|
||
|
|
assert(lua_istable(L,-1)); /* just in case */
|
||
|
|
/* look for the key in the .get table */
|
||
|
|
lua_pushvalue(L,2); /* key */
|
||
|
|
lua_rawget(L,-2);
|
||
|
|
lua_remove(L,-2); /* stack tidy, remove .get table */
|
||
|
|
if (lua_iscfunction(L,-1))
|
||
|
|
{ /* found it so call the fn & return its value */
|
||
|
|
lua_pushvalue(L,1); /* the userdata */
|
||
|
|
lua_call(L,1,1); /* 1 value in (userdata),1 out (result) */
|
||
|
|
lua_remove(L,-2); /* stack tidy, remove metatable */
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
lua_pop(L,1); /* remove whatever was there */
|
||
|
|
/* ok, so try the .fn table */
|
||
|
|
SWIG_Lua_get_table(L,".fn"); /* find the .get table */
|
||
|
|
assert(lua_istable(L,-1)); /* just in case */
|
||
|
|
lua_pushvalue(L,2); /* key */
|
||
|
|
lua_rawget(L,-2); /* look for the fn */
|
||
|
|
lua_remove(L,-2); /* stack tidy, remove .fn table */
|
||
|
|
if (lua_isfunction(L,-1)) /* note: if its a C function or lua function */
|
||
|
|
{ /* found it so return the fn & let lua call it */
|
||
|
|
lua_remove(L,-2); /* stack tidy, remove metatable */
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
lua_pop(L,1); /* remove whatever was there */
|
||
|
|
/* NEW: looks for the __getitem() fn
|
||
|
|
this is a user provided get fn */
|
||
|
|
SWIG_Lua_get_table(L,"__getitem"); /* find the __getitem fn */
|
||
|
|
if (lua_iscfunction(L,-1)) /* if its there */
|
||
|
|
{ /* found it so call the fn & return its value */
|
||
|
|
lua_pushvalue(L,1); /* the userdata */
|
||
|
|
lua_pushvalue(L,2); /* the parameter */
|
||
|
|
lua_call(L,2,1); /* 2 value in (userdata),1 out (result) */
|
||
|
|
lua_remove(L,-2); /* stack tidy, remove metatable */
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
return 0; /* sorry not known */
|
||
|
|
}
|
||
|
|
|
||
|
|
/* the class.set method, performs the lookup of class attributes */
|
||
|
|
SWIGINTERN int SWIG_Lua_class_set(lua_State* L)
|
||
|
|
{
|
||
|
|
/* there should be 3 params passed in
|
||
|
|
(1) table (not the meta table)
|
||
|
|
(2) string name of the attribute
|
||
|
|
(3) any for the new value
|
||
|
|
printf("SWIG_Lua_class_set %p(%s) '%s' %p(%s)\n",
|
||
|
|
lua_topointer(L,1),lua_typename(L,lua_type(L,1)),
|
||
|
|
lua_tostring(L,2),
|
||
|
|
lua_topointer(L,3),lua_typename(L,lua_type(L,3)));*/
|
||
|
|
|
||
|
|
assert(lua_isuserdata(L,1)); /* just in case */
|
||
|
|
lua_getmetatable(L,1); /* get the meta table */
|
||
|
|
assert(lua_istable(L,-1)); /* just in case */
|
||
|
|
|
||
|
|
SWIG_Lua_get_table(L,".set"); /* find the .set table */
|
||
|
|
if (lua_istable(L,-1))
|
||
|
|
{
|
||
|
|
/* look for the key in the .set table */
|
||
|
|
lua_pushvalue(L,2); /* key */
|
||
|
|
lua_rawget(L,-2);
|
||
|
|
if (lua_iscfunction(L,-1))
|
||
|
|
{ /* found it so call the fn & return its value */
|
||
|
|
lua_pushvalue(L,1); /* userdata */
|
||
|
|
lua_pushvalue(L,3); /* value */
|
||
|
|
lua_call(L,2,0);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
lua_pop(L,1); /* remove the value */
|
||
|
|
}
|
||
|
|
lua_pop(L,1); /* remove the value .set table */
|
||
|
|
/* NEW: looks for the __setitem() fn
|
||
|
|
this is a user provided set fn */
|
||
|
|
SWIG_Lua_get_table(L,"__setitem"); /* find the fn */
|
||
|
|
if (lua_iscfunction(L,-1)) /* if its there */
|
||
|
|
{ /* found it so call the fn & return its value */
|
||
|
|
lua_pushvalue(L,1); /* the userdata */
|
||
|
|
lua_pushvalue(L,2); /* the parameter */
|
||
|
|
lua_pushvalue(L,3); /* the value */
|
||
|
|
lua_call(L,3,0); /* 3 values in ,0 out */
|
||
|
|
lua_remove(L,-2); /* stack tidy, remove metatable */
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* the class.destruct method called by the interpreter */
|
||
|
|
SWIGINTERN int SWIG_Lua_class_destruct(lua_State* L)
|
||
|
|
{
|
||
|
|
/* there should be 1 params passed in
|
||
|
|
(1) userdata (not the meta table) */
|
||
|
|
swig_lua_userdata* usr;
|
||
|
|
swig_lua_class* clss;
|
||
|
|
assert(lua_isuserdata(L,-1)); /* just in case */
|
||
|
|
usr=(swig_lua_userdata*)lua_touserdata(L,-1); /* get it */
|
||
|
|
/* if must be destroyed & has a destructor */
|
||
|
|
if (usr->own) /* if must be destroyed */
|
||
|
|
{
|
||
|
|
clss=(swig_lua_class*)usr->type->clientdata; /* get the class */
|
||
|
|
if (clss && clss->destructor) /* there is a destroy fn */
|
||
|
|
{
|
||
|
|
clss->destructor(usr->ptr); /* bye bye */
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* gets the swig class registry (or creates it) */
|
||
|
|
SWIGINTERN void SWIG_Lua_get_class_registry(lua_State* L)
|
||
|
|
{
|
||
|
|
/* add this all into the swig registry: */
|
||
|
|
lua_pushstring(L,"SWIG");
|
||
|
|
lua_rawget(L,LUA_REGISTRYINDEX); /* get the registry */
|
||
|
|
if (!lua_istable(L,-1)) /* not there */
|
||
|
|
{ /* must be first time, so add it */
|
||
|
|
lua_pop(L,1); /* remove the result */
|
||
|
|
lua_pushstring(L,"SWIG");
|
||
|
|
lua_newtable(L);
|
||
|
|
lua_rawset(L,LUA_REGISTRYINDEX);
|
||
|
|
/* then get it */
|
||
|
|
lua_pushstring(L,"SWIG");
|
||
|
|
lua_rawget(L,LUA_REGISTRYINDEX);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/* helper fn to get the classes metatable from the register */
|
||
|
|
SWIGINTERN void SWIG_Lua_get_class_metatable(lua_State* L,const char* cname)
|
||
|
|
{
|
||
|
|
SWIG_Lua_get_class_registry(L); /* get the registry */
|
||
|
|
lua_pushstring(L,cname); /* get the name */
|
||
|
|
lua_rawget(L,-2); /* get it */
|
||
|
|
lua_remove(L,-2); /* tidy up (remove registry) */
|
||
|
|
}
|
||
|
|
|
||
|
|
/* helper add a variable to a registered class */
|
||
|
|
SWIGINTERN void SWIG_Lua_add_class_variable(lua_State* L,const char* name,lua_CFunction getFn,lua_CFunction setFn)
|
||
|
|
{
|
||
|
|
assert(lua_istable(L,-1)); /* just in case */
|
||
|
|
SWIG_Lua_get_table(L,".get"); /* find the .get table */
|
||
|
|
assert(lua_istable(L,-1)); /* just in case */
|
||
|
|
SWIG_Lua_add_function(L,name,getFn);
|
||
|
|
lua_pop(L,1); /* tidy stack (remove table) */
|
||
|
|
if (setFn)
|
||
|
|
{
|
||
|
|
SWIG_Lua_get_table(L,".set"); /* find the .set table */
|
||
|
|
assert(lua_istable(L,-1)); /* just in case */
|
||
|
|
SWIG_Lua_add_function(L,name,setFn);
|
||
|
|
lua_pop(L,1); /* tidy stack (remove table) */
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/* helper to recursively add class details (attributes & operations) */
|
||
|
|
SWIGINTERN void SWIG_Lua_add_class_details(lua_State* L,swig_lua_class* clss)
|
||
|
|
{
|
||
|
|
int i;
|
||
|
|
/* call all the base classes first: we can then override these later: */
|
||
|
|
for(i=0;clss->bases[i];i++)
|
||
|
|
{
|
||
|
|
SWIG_Lua_add_class_details(L,clss->bases[i]);
|
||
|
|
}
|
||
|
|
/* add fns */
|
||
|
|
for(i=0;clss->attributes[i].name;i++){
|
||
|
|
SWIG_Lua_add_class_variable(L,clss->attributes[i].name,clss->attributes[i].getmethod,clss->attributes[i].setmethod);
|
||
|
|
}
|
||
|
|
/* add methods to the metatable */
|
||
|
|
SWIG_Lua_get_table(L,".fn"); /* find the .fn table */
|
||
|
|
assert(lua_istable(L,-1)); /* just in case */
|
||
|
|
for(i=0;clss->methods[i].name;i++){
|
||
|
|
SWIG_Lua_add_function(L,clss->methods[i].name,clss->methods[i].method);
|
||
|
|
}
|
||
|
|
lua_pop(L,1); /* tidy stack (remove table) */
|
||
|
|
/* add operator overloads
|
||
|
|
these look ANY method which start with "__" and assume they
|
||
|
|
are operator overloads & add them to the metatable
|
||
|
|
(this might mess up is someone defines a method __gc (the destructor)*/
|
||
|
|
for(i=0;clss->methods[i].name;i++){
|
||
|
|
if (clss->methods[i].name[0]=='_' && clss->methods[i].name[1]=='_'){
|
||
|
|
SWIG_Lua_add_function(L,clss->methods[i].name,clss->methods[i].method);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/* set up the base classes pointers.
|
||
|
|
Each class structure has a list of pointers to the base class structures.
|
||
|
|
This function fills them.
|
||
|
|
It cannot be done at compile time, as this will not work with hireachies
|
||
|
|
spread over more than one swig file.
|
||
|
|
Therefore it must be done at runtime, querying the SWIG type system.
|
||
|
|
*/
|
||
|
|
SWIGINTERN void SWIG_Lua_init_base_class(lua_State* L,swig_lua_class* clss)
|
||
|
|
{
|
||
|
|
int i=0;
|
||
|
|
swig_module_info* module=SWIG_GetModule(L);
|
||
|
|
for(i=0;clss->base_names[i];i++)
|
||
|
|
{
|
||
|
|
if (clss->bases[i]==0) /* not found yet */
|
||
|
|
{
|
||
|
|
/* lookup and cache the base class */
|
||
|
|
swig_type_info *info = SWIG_TypeQueryModule(module,module,clss->base_names[i]);
|
||
|
|
if (info) clss->bases[i] = (swig_lua_class *) info->clientdata;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/* performs the entire class registration process */
|
||
|
|
SWIGINTERN void SWIG_Lua_class_register(lua_State* L,swig_lua_class* clss)
|
||
|
|
{
|
||
|
|
/* add its constructor to module with the name of the class
|
||
|
|
so you can do MyClass(...) as well as new_MyClass(...)
|
||
|
|
BUT only if a constructor is defined
|
||
|
|
(this overcomes the problem of pure virtual classes without constructors)*/
|
||
|
|
if (clss->constructor)
|
||
|
|
SWIG_Lua_add_function(L,clss->name,clss->constructor);
|
||
|
|
|
||
|
|
SWIG_Lua_get_class_registry(L); /* get the registry */
|
||
|
|
lua_pushstring(L,clss->name); /* get the name */
|
||
|
|
lua_newtable(L); /* create the metatable */
|
||
|
|
/* add string of class name called ".type" */
|
||
|
|
lua_pushstring(L,".type");
|
||
|
|
lua_pushstring(L,clss->name);
|
||
|
|
lua_rawset(L,-3);
|
||
|
|
/* add a table called ".get" */
|
||
|
|
lua_pushstring(L,".get");
|
||
|
|
lua_newtable(L);
|
||
|
|
lua_rawset(L,-3);
|
||
|
|
/* add a table called ".set" */
|
||
|
|
lua_pushstring(L,".set");
|
||
|
|
lua_newtable(L);
|
||
|
|
lua_rawset(L,-3);
|
||
|
|
/* add a table called ".fn" */
|
||
|
|
lua_pushstring(L,".fn");
|
||
|
|
lua_newtable(L);
|
||
|
|
lua_rawset(L,-3);
|
||
|
|
/* add accessor fns for using the .get,.set&.fn */
|
||
|
|
SWIG_Lua_add_function(L,"__index",SWIG_Lua_class_get);
|
||
|
|
SWIG_Lua_add_function(L,"__newindex",SWIG_Lua_class_set);
|
||
|
|
SWIG_Lua_add_function(L,"__gc",SWIG_Lua_class_destruct);
|
||
|
|
/* add it */
|
||
|
|
lua_rawset(L,-3); /* metatable into registry */
|
||
|
|
lua_pop(L,1); /* tidy stack (remove registry) */
|
||
|
|
|
||
|
|
SWIG_Lua_get_class_metatable(L,clss->name);
|
||
|
|
SWIG_Lua_add_class_details(L,clss); /* recursive adding of details (atts & ops) */
|
||
|
|
lua_pop(L,1); /* tidy stack (remove class metatable) */
|
||
|
|
}
|
||
|
|
|
||
|
|
/* -----------------------------------------------------------------------------
|
||
|
|
* Class/structure conversion fns
|
||
|
|
* ----------------------------------------------------------------------------- */
|
||
|
|
|
||
|
|
/* helper to add metatable to new lua object */
|
||
|
|
SWIGINTERN void _SWIG_Lua_AddMetatable(lua_State* L,swig_type_info *type)
|
||
|
|
{
|
||
|
|
if (type->clientdata) /* there is clientdata: so add the metatable */
|
||
|
|
{
|
||
|
|
SWIG_Lua_get_class_metatable(L,((swig_lua_class*)(type->clientdata))->name);
|
||
|
|
if (lua_istable(L,-1))
|
||
|
|
{
|
||
|
|
lua_setmetatable(L,-2);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
lua_pop(L,1);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/* pushes a new object into the lua stack */
|
||
|
|
SWIGRUNTIME void SWIG_Lua_NewPointerObj(lua_State* L,void* ptr,swig_type_info *type, int own)
|
||
|
|
{
|
||
|
|
swig_lua_userdata* usr;
|
||
|
|
if (!ptr){
|
||
|
|
lua_pushnil(L);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
usr=(swig_lua_userdata*)lua_newuserdata(L,sizeof(swig_lua_userdata)); /* get data */
|
||
|
|
usr->ptr=ptr; /* set the ptr */
|
||
|
|
usr->type=type;
|
||
|
|
usr->own=own;
|
||
|
|
_SWIG_Lua_AddMetatable(L,type); /* add metatable */
|
||
|
|
}
|
||
|
|
|
||
|
|
/* takes a object from the lua stack & converts it into an object of the correct type
|
||
|
|
(if possible) */
|
||
|
|
SWIGRUNTIME int SWIG_Lua_ConvertPtr(lua_State* L,int index,void** ptr,swig_type_info *type,int flags)
|
||
|
|
{
|
||
|
|
swig_lua_userdata* usr;
|
||
|
|
swig_cast_info *cast;
|
||
|
|
if (lua_isnil(L,index)){*ptr=0; return SWIG_OK;} /* special case: lua nil => NULL pointer */
|
||
|
|
usr=(swig_lua_userdata*)lua_touserdata(L,index); /* get data */
|
||
|
|
if (usr)
|
||
|
|
{
|
||
|
|
if (!type) /* special cast void*, no casting fn */
|
||
|
|
{
|
||
|
|
*ptr=usr->ptr;
|
||
|
|
return SWIG_OK; /* ok */
|
||
|
|
}
|
||
|
|
cast=SWIG_TypeCheckStruct(usr->type,type); /* performs normal type checking */
|
||
|
|
if (cast)
|
||
|
|
{
|
||
|
|
int newmemory = 0;
|
||
|
|
*ptr=SWIG_TypeCast(cast,usr->ptr,&newmemory);
|
||
|
|
assert(!newmemory); /* newmemory handling not yet implemented */
|
||
|
|
return SWIG_OK; /* ok */
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return SWIG_ERROR; /* error */
|
||
|
|
}
|
||
|
|
|
||
|
|
SWIGRUNTIME void* SWIG_Lua_MustGetPtr(lua_State* L,int index,swig_type_info *type,int flags,
|
||
|
|
int argnum,const char* func_name){
|
||
|
|
void* result;
|
||
|
|
if (!SWIG_IsOK(SWIG_ConvertPtr(L,index,&result,type,flags))){
|
||
|
|
lua_pushfstring(L,"Error in %s, expected a %s at argument number %d\n",
|
||
|
|
func_name,(type && type->str)?type->str:"void*",argnum);
|
||
|
|
lua_error(L);
|
||
|
|
}
|
||
|
|
return result;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* pushes a packed userdata. user for member fn pointers only */
|
||
|
|
SWIGRUNTIME void SWIG_Lua_NewPackedObj(lua_State* L,void* ptr,size_t size,swig_type_info *type)
|
||
|
|
{
|
||
|
|
swig_lua_rawdata* raw;
|
||
|
|
assert(ptr); /* not acceptable to pass in a NULL value */
|
||
|
|
raw=(swig_lua_rawdata*)lua_newuserdata(L,sizeof(swig_lua_rawdata)-1+size); /* alloc data */
|
||
|
|
raw->type=type;
|
||
|
|
raw->own=0;
|
||
|
|
memcpy(raw->data,ptr,size); /* copy the data */
|
||
|
|
_SWIG_Lua_AddMetatable(L,type); /* add metatable */
|
||
|
|
}
|
||
|
|
|
||
|
|
/* converts a packed userdata. user for member fn pointers only */
|
||
|
|
SWIGRUNTIME int SWIG_Lua_ConvertPacked(lua_State* L,int index,void* ptr,size_t size,swig_type_info *type)
|
||
|
|
{
|
||
|
|
swig_lua_rawdata* raw;
|
||
|
|
raw=(swig_lua_rawdata*)lua_touserdata(L,index); /* get data */
|
||
|
|
if (!raw) return SWIG_ERROR; /* error */
|
||
|
|
if (type==0 || type==raw->type) /* void* or identical type */
|
||
|
|
{
|
||
|
|
memcpy(ptr,raw->data,size); /* copy it */
|
||
|
|
return SWIG_OK; /* ok */
|
||
|
|
}
|
||
|
|
return SWIG_ERROR; /* error */
|
||
|
|
}
|
||
|
|
|
||
|
|
/* a function to get the typestring of a piece of data */
|
||
|
|
SWIGRUNTIME const char *SWIG_Lua_typename(lua_State *L, int tp)
|
||
|
|
{
|
||
|
|
swig_lua_userdata* usr;
|
||
|
|
if (lua_isuserdata(L,tp))
|
||
|
|
{
|
||
|
|
usr=(swig_lua_userdata*)lua_touserdata(L,1); /* get data */
|
||
|
|
if (usr && usr->type && usr->type->str)
|
||
|
|
return usr->type->str;
|
||
|
|
return "userdata (unknown type)";
|
||
|
|
}
|
||
|
|
return lua_typename(L,lua_type(L,tp));
|
||
|
|
}
|
||
|
|
|
||
|
|
/* lua callable function to get the userdata's type */
|
||
|
|
SWIGRUNTIME int SWIG_Lua_type(lua_State* L)
|
||
|
|
{
|
||
|
|
/* swig_lua_userdata* usr;
|
||
|
|
if (!lua_isuserdata(L,1)) /* just in case */
|
||
|
|
/* return 0; /* nil reply */
|
||
|
|
/*usr=(swig_lua_userdata*)lua_touserdata(L,1); /* get data */
|
||
|
|
/*lua_pushstring(L,usr->type->name);
|
||
|
|
return 1;*/
|
||
|
|
lua_pushstring(L,SWIG_Lua_typename(L,1));
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* lua callable function to compare userdata's value
|
||
|
|
the issue is that two userdata may point to the same thing
|
||
|
|
but to lua, they are different objects */
|
||
|
|
SWIGRUNTIME int SWIG_Lua_equal(lua_State* L)
|
||
|
|
{
|
||
|
|
int result;
|
||
|
|
swig_lua_userdata *usr1,*usr2;
|
||
|
|
if (!lua_isuserdata(L,1) || !lua_isuserdata(L,2)) /* just in case */
|
||
|
|
return 0; /* nil reply */
|
||
|
|
usr1=(swig_lua_userdata*)lua_touserdata(L,1); /* get data */
|
||
|
|
usr2=(swig_lua_userdata*)lua_touserdata(L,2); /* get data */
|
||
|
|
/*result=(usr1->ptr==usr2->ptr && usr1->type==usr2->type); only works if type is the same*/
|
||
|
|
result=(usr1->ptr==usr2->ptr);
|
||
|
|
lua_pushboolean(L,result);
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
/* -----------------------------------------------------------------------------
|
||
|
|
* global variable support code: class/struct typemap functions
|
||
|
|
* ----------------------------------------------------------------------------- */
|
||
|
|
|
||
|
|
/* Install Constants */
|
||
|
|
SWIGINTERN void
|
||
|
|
SWIG_Lua_InstallConstants(lua_State* L, swig_lua_const_info constants[]) {
|
||
|
|
int i;
|
||
|
|
for (i = 0; constants[i].type; i++) {
|
||
|
|
switch(constants[i].type) {
|
||
|
|
case SWIG_LUA_INT:
|
||
|
|
lua_pushstring(L,constants[i].name);
|
||
|
|
lua_pushnumber(L,(lua_Number)constants[i].lvalue);
|
||
|
|
lua_rawset(L,-3);
|
||
|
|
break;
|
||
|
|
case SWIG_LUA_FLOAT:
|
||
|
|
lua_pushstring(L,constants[i].name);
|
||
|
|
lua_pushnumber(L,(lua_Number)constants[i].dvalue);
|
||
|
|
lua_rawset(L,-3);
|
||
|
|
break;
|
||
|
|
case SWIG_LUA_CHAR:
|
||
|
|
lua_pushstring(L,constants[i].name);
|
||
|
|
lua_pushfstring(L,"%c",(char)constants[i].lvalue);
|
||
|
|
lua_rawset(L,-3);
|
||
|
|
break;
|
||
|
|
case SWIG_LUA_STRING:
|
||
|
|
lua_pushstring(L,constants[i].name);
|
||
|
|
lua_pushstring(L,(char *) constants[i].pvalue);
|
||
|
|
lua_rawset(L,-3);
|
||
|
|
break;
|
||
|
|
case SWIG_LUA_POINTER:
|
||
|
|
lua_pushstring(L,constants[i].name);
|
||
|
|
SWIG_NewPointerObj(L,constants[i].pvalue, *(constants[i]).ptype,0);
|
||
|
|
lua_rawset(L,-3);
|
||
|
|
break;
|
||
|
|
case SWIG_LUA_BINARY:
|
||
|
|
lua_pushstring(L,constants[i].name);
|
||
|
|
SWIG_NewMemberObj(L,constants[i].pvalue,constants[i].lvalue,*(constants[i]).ptype);
|
||
|
|
lua_rawset(L,-3);
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* ------------------------------ end luarun.swg ------------------------------ */
|