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ant/src/runtime.c
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runtime.c
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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <runtime.h>
#include <arena.h>
static struct ant_runtime runtime = {0};
struct ant_runtime *const rt = &runtime;
static code_block_t *code_arena_head = NULL;
static code_block_t *code_arena_current = NULL;
static code_block_t *code_arena_new_block(size_t min_size) {
size_t capacity = CODE_ARENA_BLOCK_SIZE;
if (min_size > capacity) capacity = min_size;
code_block_t *block = (code_block_t *)ANT_GC_MALLOC_ATOMIC(sizeof(code_block_t) + capacity);
if (!block) return NULL;
block->next = NULL;
block->used = 0;
block->capacity = capacity;
return block;
}
const char *code_arena_alloc(const char *code, size_t len) {
if (!code || len == 0) return NULL;
size_t alloc_size = len + 1;
if (!code_arena_current || code_arena_current->used + alloc_size > code_arena_current->capacity) {
code_block_t *new_block = code_arena_new_block(alloc_size);
if (!new_block) return NULL;
if (!code_arena_head) code_arena_head = new_block;
else if (code_arena_current) code_arena_current->next = new_block;
code_arena_current = new_block;
}
char *dest = &code_arena_current->data[code_arena_current->used];
memcpy(dest, code, len);
dest[len] = '\0';
code_arena_current->used += alloc_size;
return dest;
}
void code_arena_reset(void) {
code_arena_head = NULL;
code_arena_current = NULL;
}
struct ant_runtime *ant_runtime_init(struct js *js, int argc, char **argv, struct arg_file *ls_p) {
runtime.js = js;
runtime.ant_obj = js_newobj(js);
runtime.flags = 0;
runtime.argc = argc;
runtime.argv = argv;
runtime.ls_fp = ls_p->count > 0 ? ls_p->filename[0] : NULL;
js_set(js, js_glob(js), "global", js_glob(js));
js_set(js, js_glob(js), "window", js_glob(js));
js_set(js, js_glob(js), "globalThis", js_glob(js));
js_set(js, js_glob(js), "Ant", runtime.ant_obj);
return &runtime;
}

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