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ant/src/esm/library.c
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library.c
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#include "esm/library.h"
#include "ant.h"
#include "arena.h"
#include <stdarg.h>
#include <string.h>
#include <uthash.h>
typedef struct ant_library_entry {
char name[256];
ant_library_init_fn init_fn;
UT_hash_handle hh;
} ant_library_entry_t;
static ant_library_entry_t *library_registry = NULL;
void ant_register_library(ant_library_init_fn init_fn, const char *name, ...) {
va_list args;
const char *alias = name;
va_start(args, name);
while (alias != NULL) {
ant_library_entry_t *lib = (ant_library_entry_t *)ant_calloc(sizeof(ant_library_entry_t));
if (!lib) break;
strncpy(lib->name, alias, sizeof(lib->name) - 1);
lib->name[sizeof(lib->name) - 1] = '\0';
lib->init_fn = init_fn;
HASH_ADD_STR(library_registry, name, lib);
alias = va_arg(args, const char *);
}
va_end(args);
}
static ant_library_entry_t *find_library(const char *specifier, size_t spec_len) {
ant_library_entry_t *lib = NULL;
char key[256];
if (spec_len >= sizeof(key)) return NULL;
memcpy(key, specifier, spec_len);
key[spec_len] = '\0';
HASH_FIND_STR(library_registry, key, lib);
return lib;
}
void ant_library_foreach(ant_library_iter_fn cb, void *userdata) {
ant_library_entry_t *lib, *tmp;
HASH_ITER(hh, library_registry, lib, tmp) {
if (!strchr(lib->name, ':')) cb(lib->name, userdata);
}
}
jsval_t js_esm_load_registered_library(ant_t *js, const char *specifier, size_t spec_len, bool *loaded) {
ant_library_entry_t *lib = find_library(specifier, spec_len);
if (!lib) {
if (loaded) *loaded = false;
return js_mkundef();
}
if (loaded) *loaded = true;
return lib->init_fn(js);
}

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