-typedef struct int64_tArray { uint32_t *len; /* len + 1 is data */ } int64_tArray;
-typedef struct uint32_tArray { uint32_t *len; /* len + 1 is data */ } uint32_tArray;
-typedef struct ptrArray { uint32_t *len; /* len + 1 is data */ } ptrArray;
-typedef struct int8_tArray { uint32_t *len; /* len + 1 is data */ } int8_tArray;
-typedef struct jstring {} jstring;
+//typedef struct int64_tArray { uint32_t *len; /* len + 1 is data */ } int64_tArray;
+//typedef struct uint32_tArray { uint32_t *len; /* len + 1 is data */ } uint32_tArray;
+//typedef struct ptrArray { uint32_t *len; /* len + 1 is data */ } ptrArray;
+//typedef struct int8_tArray { uint32_t *len; /* len + 1 is data */ } int8_tArray;
+typedef uint32_t int64_tArray;
+typedef uint32_t int8_tArray;
+typedef uint32_t uint32_tArray;
+typedef uint32_t ptrArray;
+typedef uint32_t jstring;
+
+static inline uint32_t init_arr(size_t arr_len, size_t elem_size, const char *type_desc) {
+ uint32_t *elems = (uint32_t*)MALLOC(arr_len * elem_size + 4, type_desc);
+ elems[0] = arr_len;
+ return (uint32_t)elems;
+}