source-engine/devtools/swigwin-1.3.34/Lib/swiginit.swg

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2020-04-22 16:56:21 +00:00
/* -----------------------------------------------------------------------------
* Type initialization:
* This problem is tough by the requirement that no dynamic
* memory is used. Also, since swig_type_info structures store pointers to
* swig_cast_info structures and swig_cast_info structures store pointers back
* to swig_type_info structures, we need some lookup code at initialization.
* The idea is that swig generates all the structures that are needed.
* The runtime then collects these partially filled structures.
* The SWIG_InitializeModule function takes these initial arrays out of
* swig_module, and does all the lookup, filling in the swig_module.types
* array with the correct data and linking the correct swig_cast_info
* structures together.
*
* The generated swig_type_info structures are assigned staticly to an initial
* array. We just loop through that array, and handle each type individually.
* First we lookup if this type has been already loaded, and if so, use the
* loaded structure instead of the generated one. Then we have to fill in the
* cast linked list. The cast data is initially stored in something like a
* two-dimensional array. Each row corresponds to a type (there are the same
* number of rows as there are in the swig_type_initial array). Each entry in
* a column is one of the swig_cast_info structures for that type.
* The cast_initial array is actually an array of arrays, because each row has
* a variable number of columns. So to actually build the cast linked list,
* we find the array of casts associated with the type, and loop through it
* adding the casts to the list. The one last trick we need to do is making
* sure the type pointer in the swig_cast_info struct is correct.
*
* First off, we lookup the cast->type name to see if it is already loaded.
* There are three cases to handle:
* 1) If the cast->type has already been loaded AND the type we are adding
* casting info to has not been loaded (it is in this module), THEN we
* replace the cast->type pointer with the type pointer that has already
* been loaded.
* 2) If BOTH types (the one we are adding casting info to, and the
* cast->type) are loaded, THEN the cast info has already been loaded by
* the previous module so we just ignore it.
* 3) Finally, if cast->type has not already been loaded, then we add that
* swig_cast_info to the linked list (because the cast->type) pointer will
* be correct.
* ----------------------------------------------------------------------------- */
#ifdef __cplusplus
extern "C" {
#if 0
} /* c-mode */
#endif
#endif
#if 0
#define SWIGRUNTIME_DEBUG
#endif
SWIGRUNTIME void
SWIG_InitializeModule(void *clientdata) {
size_t i;
swig_module_info *module_head, *iter;
int found, init;
clientdata = clientdata;
/* check to see if the circular list has been setup, if not, set it up */
if (swig_module.next==0) {
/* Initialize the swig_module */
swig_module.type_initial = swig_type_initial;
swig_module.cast_initial = swig_cast_initial;
swig_module.next = &swig_module;
init = 1;
} else {
init = 0;
}
/* Try and load any already created modules */
module_head = SWIG_GetModule(clientdata);
if (!module_head) {
/* This is the first module loaded for this interpreter */
/* so set the swig module into the interpreter */
SWIG_SetModule(clientdata, &swig_module);
module_head = &swig_module;
} else {
/* the interpreter has loaded a SWIG module, but has it loaded this one? */
found=0;
iter=module_head;
do {
if (iter==&swig_module) {
found=1;
break;
}
iter=iter->next;
} while (iter!= module_head);
/* if the is found in the list, then all is done and we may leave */
if (found) return;
/* otherwise we must add out module into the list */
swig_module.next = module_head->next;
module_head->next = &swig_module;
}
/* When multiple interpeters are used, a module could have already been initialized in
a different interpreter, but not yet have a pointer in this interpreter.
In this case, we do not want to continue adding types... everything should be
set up already */
if (init == 0) return;
/* Now work on filling in swig_module.types */
#ifdef SWIGRUNTIME_DEBUG
printf("SWIG_InitializeModule: size %d\n", swig_module.size);
#endif
for (i = 0; i < swig_module.size; ++i) {
swig_type_info *type = 0;
swig_type_info *ret;
swig_cast_info *cast;
#ifdef SWIGRUNTIME_DEBUG
printf("SWIG_InitializeModule: type %d %s\n", i, swig_module.type_initial[i]->name);
#endif
/* if there is another module already loaded */
if (swig_module.next != &swig_module) {
type = SWIG_MangledTypeQueryModule(swig_module.next, &swig_module, swig_module.type_initial[i]->name);
}
if (type) {
/* Overwrite clientdata field */
#ifdef SWIGRUNTIME_DEBUG
printf("SWIG_InitializeModule: found type %s\n", type->name);
#endif
if (swig_module.type_initial[i]->clientdata) {
type->clientdata = swig_module.type_initial[i]->clientdata;
#ifdef SWIGRUNTIME_DEBUG
printf("SWIG_InitializeModule: found and overwrite type %s \n", type->name);
#endif
}
} else {
type = swig_module.type_initial[i];
}
/* Insert casting types */
cast = swig_module.cast_initial[i];
while (cast->type) {
/* Don't need to add information already in the list */
ret = 0;
#ifdef SWIGRUNTIME_DEBUG
printf("SWIG_InitializeModule: look cast %s\n", cast->type->name);
#endif
if (swig_module.next != &swig_module) {
ret = SWIG_MangledTypeQueryModule(swig_module.next, &swig_module, cast->type->name);
#ifdef SWIGRUNTIME_DEBUG
if (ret) printf("SWIG_InitializeModule: found cast %s\n", ret->name);
#endif
}
if (ret) {
if (type == swig_module.type_initial[i]) {
#ifdef SWIGRUNTIME_DEBUG
printf("SWIG_InitializeModule: skip old type %s\n", ret->name);
#endif
cast->type = ret;
ret = 0;
} else {
/* Check for casting already in the list */
swig_cast_info *ocast = SWIG_TypeCheck(ret->name, type);
#ifdef SWIGRUNTIME_DEBUG
if (ocast) printf("SWIG_InitializeModule: skip old cast %s\n", ret->name);
#endif
if (!ocast) ret = 0;
}
}
if (!ret) {
#ifdef SWIGRUNTIME_DEBUG
printf("SWIG_InitializeModule: adding cast %s\n", cast->type->name);
#endif
if (type->cast) {
type->cast->prev = cast;
cast->next = type->cast;
}
type->cast = cast;
}
cast++;
}
/* Set entry in modules->types array equal to the type */
swig_module.types[i] = type;
}
swig_module.types[i] = 0;
#ifdef SWIGRUNTIME_DEBUG
printf("**** SWIG_InitializeModule: Cast List ******\n");
for (i = 0; i < swig_module.size; ++i) {
int j = 0;
swig_cast_info *cast = swig_module.cast_initial[i];
printf("SWIG_InitializeModule: type %d %s\n", i, swig_module.type_initial[i]->name);
while (cast->type) {
printf("SWIG_InitializeModule: cast type %s\n", cast->type->name);
cast++;
++j;
}
printf("---- Total casts: %d\n",j);
}
printf("**** SWIG_InitializeModule: Cast List ******\n");
#endif
}
/* This function will propagate the clientdata field of type to
* any new swig_type_info structures that have been added into the list
* of equivalent types. It is like calling
* SWIG_TypeClientData(type, clientdata) a second time.
*/
SWIGRUNTIME void
SWIG_PropagateClientData(void) {
size_t i;
swig_cast_info *equiv;
static int init_run = 0;
if (init_run) return;
init_run = 1;
for (i = 0; i < swig_module.size; i++) {
if (swig_module.types[i]->clientdata) {
equiv = swig_module.types[i]->cast;
while (equiv) {
if (!equiv->converter) {
if (equiv->type && !equiv->type->clientdata)
SWIG_TypeClientData(equiv->type, swig_module.types[i]->clientdata);
}
equiv = equiv->next;
}
}
}
}
#ifdef __cplusplus
#if 0
{ /* c-mode */
#endif
}
#endif