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main.c
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main.c
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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <libgen.h>
#include <unistd.h>
#include <argtable3.h>
#include "ant.h"
#include "config.h"
#include "runtime.h"
#include "repl.h"
#ifndef ANT_SNAPSHOT_GENERATOR
#include "snapshot.h"
#endif
#include "modules/builtin.h"
#include "modules/buffer.h"
#include "modules/atomics.h"
#include "modules/io.h"
#include "modules/fs.h"
#include "modules/crypto.h"
#include "modules/server.h"
#include "modules/timer.h"
#include "modules/json.h"
#include "modules/fetch.h"
#include "modules/shell.h"
#include "modules/process.h"
#include "modules/path.h"
#include "modules/ffi.h"
#include "modules/events.h"
#include "modules/performance.h"
#include "modules/uri.h"
#include "modules/url.h"
#include "modules/reflect.h"
int js_result = EXIT_SUCCESS;
static void eval_code(struct js *js, struct arg_str *eval, struct arg_lit *print) {
const char *script = eval->sval[0];
size_t len = strlen(script);
js_set_filename(js, "[eval]");
js_setup_import_meta(js, "[eval]");
js_mkscope(js);
js_protect_init_memory(js);
js_set(js, js_glob(js), "__dirname", js_mkstr(js, ".", 1));
js_set(js, js_glob(js), "__filename", js_mkstr(js, "[eval]", 6));
jsval_t result = js_eval(js, script, len);
if (js_type(result) == JS_ERR) {
fprintf(stderr, "%s\n", js_str(js, result));
js_result = EXIT_FAILURE;
} else if (print->count > 0) {
if (js_type(result) == JS_STR) {
char *str = js_getstr(js, result, NULL);
if (str) printf("%s\n", str);
} else {
const char *str = js_str(js, result);
if (str && strcmp(str, "undefined") != 0) {
print_value_colored(str, stdout);
printf("\n");
}
}
}
js_run_event_loop(js);
}
static int execute_module(struct js *js, const char *filename) {
char *filename_copy = strdup(filename);
char *dir = dirname(filename_copy);
js_set(js, js_glob(js), "__dirname", js_mkstr(js, dir, strlen(dir)));
js_set(js, js_glob(js), "__filename", js_mkstr(js, filename, strlen(filename)));
free(filename_copy);
FILE *fp = fopen(filename, "rb");
if (fp == NULL) {
fprintf(stderr, "Error: Could not open file '%s'\n", filename);
return EXIT_FAILURE;
}
fseek(fp, 0, SEEK_END);
long file_size = ftell(fp);
fseek(fp, 0, SEEK_SET);
char *buffer = malloc(file_size + 1);
if (buffer == NULL) {
fprintf(stderr, "Error: Memory allocation failed\n");
fclose(fp);
return EXIT_FAILURE;
}
size_t len = fread(buffer, 1, file_size, fp);
fclose(fp);
buffer[len] = '\0';
char abs_path[4096];
char *use_path = NULL;
if (realpath(filename, abs_path) != NULL) {
use_path = strdup(abs_path);
} else use_path = strdup(filename);
js_set_filename(js, use_path);
js_setup_import_meta(js, use_path);
js_mkscope(js);
js_protect_init_memory(js);
jsval_t result = js_eval(js, buffer, len);
free(buffer);
if (js_type(result) == JS_ERR) {
fprintf(stderr, "%s\n", js_str(js, result));
free(use_path);
return EXIT_FAILURE;
}
free(use_path);
return EXIT_SUCCESS;
}
int main(int argc, char *argv[]) {
char dump = 0;
struct arg_lit *help = arg_lit0("h", "help", "display this help and exit");
struct arg_lit *version = arg_lit0("v", "version", "display version information and exit");
struct arg_lit *debug = arg_litn("d", "debug", 0, 10, "dump VM state (can be repeated for more detail)");
struct arg_str *eval = arg_str0("e", "eval", "<script>", "evaluate script");
struct arg_lit *print = arg_lit0("p", "print", "evaluate script and print result");
struct arg_int *gct = arg_int0(NULL, "gct", "<threshold>", "set garbage collection threshold");
struct arg_int *initial_mem = arg_int0(NULL, "initial-mem", "<size>", "initial memory size in MB (default: 4)");
struct arg_int *max_mem = arg_int0(NULL, "max-mem", "<size>", "maximum memory size in MB (default: 512)");
struct arg_file *file = arg_file0(NULL, NULL, "<module.js>", "JavaScript module file to execute");
struct arg_end *end = arg_end(20);
void *argtable[] = {help, version, debug, eval, print, gct, initial_mem, max_mem, file, end};
int nerrors = arg_parse(argc, argv, argtable);
if (help->count > 0) {
printf("Ant sized JavaScript\n\n");
printf("Usage: ant [options] [module.js]\n\n");
printf("If no module file is specified, ant starts in REPL mode.\n\n");
printf("Options:\n");
arg_print_glossary(stdout, argtable, " %-25s %s\n");
arg_freetable(argtable, sizeof(argtable) / sizeof(argtable[0]));
return EXIT_SUCCESS;
}
if (version->count > 0) {
printf("ant %s (%s %s) [release]\n", ANT_VERSION, ANT_BUILD_DATE, ANT_GIT_HASH);
arg_freetable(argtable, sizeof(argtable) / sizeof(argtable[0]));
return EXIT_SUCCESS;
}
if (nerrors > 0) {
arg_print_errors(stdout, end, "ant");
printf("Try 'ant --help' for more information.\n");
arg_freetable(argtable, sizeof(argtable) / sizeof(argtable[0]));
return EXIT_FAILURE;
}
bool repl_mode = (file->count == 0 && eval->count == 0);
const char *module_file = repl_mode ? NULL : (file->count > 0 ? file->filename[0] : NULL);
dump = debug->count;
size_t initial_size = 4 * 1024 * 1024;
size_t max_size = 512 * 1024 * 1024;
if (initial_mem->count > 0) initial_size = (size_t)initial_mem->ival[0] * 1024 * 1024;
if (max_mem->count > 0) max_size = (size_t)max_mem->ival[0] * 1024 * 1024;
struct js *js = js_create_dynamic(initial_size, max_size);
if (js == NULL) {
fprintf(stderr, "Error: Failed to allocate JavaScript runtime\n");
arg_freetable(argtable, sizeof(argtable) / sizeof(argtable[0]));
return EXIT_FAILURE;
}
if (gct->count > 0) js_setgct(js, gct->ival[0]);
ant_runtime_init(js, argc, argv);
init_builtin_module();
init_buffer_module();
init_atomics_module();
init_crypto_module();
init_fetch_module();
init_console_module();
init_json_module();
init_server_module();
init_timer_module();
init_process_module();
init_events_module();
init_performance_module();
init_uri_module();
init_url_module();
init_reflect_module();
ant_register_library(shell_library, "ant:shell", NULL);
ant_register_library(ffi_library, "ant:ffi", NULL);
ant_register_library(path_library, "ant:path", "node:path", NULL);
ant_register_library(fs_library, "ant:fs", "node:fs", NULL);
ant_register_library(crypto_library, "ant:crypto", "node:crypto", NULL);
ant_register_library(events_library, "ant:events", "node:events", NULL);
#ifndef ANT_SNAPSHOT_GENERATOR
jsval_t snapshot_result = ant_load_snapshot(js);
if (js_type(snapshot_result) == JS_ERR) {
fprintf(stderr, "Warning: Failed to load snapshot: %s\n", js_str(js, snapshot_result));
}
#endif
if (eval->count > 0) eval_code(js, eval, print);
else if (repl_mode) ant_repl_run(); else {
js_result = execute_module(js, module_file);
js_run_event_loop(js);
}
if (dump) js_dump(js);
js_destroy(js);
arg_freetable(argtable, sizeof(argtable) / sizeof(argtable[0]));
return js_result;
}

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