static void *default_copyor(const void *key, void *context)
{
struct variable *v = (struct variable *)key;
struct variable *u = variable_copy((struct context *)context, v);
variable_old(u);
return u;
}
static void push_fnc(struct context *context, struct byte_array *program)
{
uint32_t num_closures = serial_decode_int(program);
struct map *closures = NULL;
for (int i=0; i<num_closures; i++) {
struct byte_array *name = serial_decode_string(program);
if (context->runtime) {
if (!closures)
closures = map_new();
struct variable *c = find_var(context, name);
c = variable_copy(context, c);
map_insert(closures, name, c);
}
}
struct byte_array *body = serial_decode_string(program);
DEBUGPRINT("FNC %u,%u\n", num_closures, body->length);
//display_code(context, body);
if (context->runtime) {
struct variable *f = variable_new_fnc(context, body, closures);
variable_push(context, f);
}
}
// arguments most recently passed into a function
struct variable *sys_args(struct context *context)
{
stack_pop(context->operand_stack); // self
struct program_state *above = (struct program_state*)stack_peek(context->program_stack, 1);
struct variable *result = variable_copy(context, above->args);
result->type = VAR_LST;
return result;
}
struct variable *sys_listen(struct context *context)
{
struct variable *arguments = (struct variable*)stack_pop(context->operand_stack);
struct listen_arguments *la = (struct listen_arguments*)malloc(sizeof(struct listen_arguments));
la->serverport = param_int(arguments, 1);
la->listener = variable_copy(context, (struct variable*)array_get(arguments->list, 2));
pthread_t child;
pthread_create(&child, NULL, sys_listen2, la);
return NULL;
}
static inline struct variable *cfnc_insert(struct context *context) // todo: test
{
struct variable *args = (struct variable*)stack_pop(context->operand_stack);
struct variable *self = (struct variable*)array_get(args->list.ordered, 0);
struct variable *insertion = (struct variable*)array_get(args->list.ordered, 1);
struct variable *start = args->list.ordered->length > 2 ?
(struct variable*)array_get(args->list.ordered, 2) : NULL;
null_check(self);
null_check(insertion);
assert_message(!start || start->type == VAR_INT, "non-integer index");
int32_t position = 0;
switch (self->type) {
case VAR_LST: {
struct array *list = array_new_size(1);
array_set(list, 0, insertion);
insertion = variable_new_list(context, list);
position = self->list.ordered->length;
array_del(list);
} break;
case VAR_STR:
assert_message(insertion->type == VAR_STR, "insertion doesn't match destination");
position = self->str->length;
break;
default:
exit_message("bad insertion destination");
break;
}
struct variable *first = variable_part(context, variable_copy(context, self), 0, position);
struct variable *second = variable_part(context, variable_copy(context, self), position, -1);
struct variable *joined = variable_concatenate(context, 3, first, insertion, second);
if (self->type == VAR_LST) {
array_del(self->list.ordered);
self->list.ordered = array_copy(joined->list.ordered);
} else {
byte_array_del(self->str);
self->str = byte_array_copy(joined->str);
} return joined;
}
void set_named_variable(struct context *context,
struct program_state *state,
const struct byte_array *name,
const struct variable *value)
{
// DEBUGPRINT(" set_named_variable: %p\n", state);
if (!state)
state = (struct program_state*)stack_peek(context->program_stack, 0);
struct map *var_map = state->named_variables;
struct variable *to_var = variable_copy(context, value);
map_insert(var_map, name, to_var);
//DEBUGPRINT("SET %s to %s\n", byte_array_to_string(name), variable_value_str(context, value));
// DEBUGPRINT(" SET %s at %p in {p:%p, s:%p, m:%p}\n", byte_array_to_string(name), to_var, context->program_stack, state, var_map);
}
struct variable *variable_map_list(struct context *context,
struct variable *indexable,
struct array* (*map_list)(const struct map*))
{
assert_message(indexable->type == VAR_LST, "values are only for list");
struct variable *result = variable_new_list(context, NULL);
if (NULL != indexable->list.map) {
struct array *a = map_list(indexable->list.map);
for (int i=0; i<a->length; i++) {
struct variable *u = variable_copy(context, (struct variable*)array_get(a, i));
array_add(result->list.ordered, u);
}
array_del(a);
}
return result;
}
static struct variable *binary_op_lst(struct context *context,
enum Opcode op,
const struct variable *u,
const struct variable *v)
{
vm_assert(context, u->type==VAR_LST && v->type==VAR_LST, "list op with non-lists");
struct variable *w = NULL;
switch (op) {
case VM_ADD:
w = variable_copy(context, v);
for (int i=0; i<u->list->length; i++)
array_add(w->list, array_get(u->list, i));
map_update(w->map, u->map);
break;
default:
return (struct variable*)vm_exit_message(context, "unknown string operation");
}
return w;
}
static struct variable *binary_op_nil(struct context *context,
enum Opcode op,
const struct variable *u,
const struct variable *v)
{
vm_assert(context, u->type==VAR_NIL || v->type==VAR_NIL, "nil op with non-nils");
if (v->type == VAR_NIL && u->type != VAR_NIL)
return binary_op_nil(context, op, v, u); // 1st var should be nil
switch (op) {
case VM_EQU: return variable_new_bool(context, v->type == u->type);
case VM_NEQ: return variable_new_bool(context, v->type != u->type);
case VM_ADD:
case VM_SUB: return variable_copy(context, v);
case VM_LTN:
case VM_GTN:
case VM_LEQ:
case VM_GRQ: return variable_new_bool(context, false);
default:
return vm_exit_message(context, "unknown binary nil op");
}
}
struct variable *builtin_method(struct context *context,
struct variable *indexable,
const struct variable *index)
{
enum VarType it = indexable->type;
char *idxstr = byte_array_to_string(index->str);
struct variable *result = NULL;
if (!strcmp(idxstr, FNC_LENGTH)) {
int n;
switch (indexable->type) {
case VAR_LST: n = indexable->list.ordered->length; break;
case VAR_STR: n = indexable->str->length; break;
case VAR_NIL: n = 0; break;
default:
free(idxstr);
exit_message("no length for non-indexable");
return NULL;
}
result = variable_new_int(context, n);
}
else if (!strcmp(idxstr, FNC_TYPE)) {
const char *typestr = var_type_str(it);
result = variable_new_str_chars(context, typestr);
}
else if (!strcmp(idxstr, FNC_STRING)) {
switch (indexable->type) {
case VAR_STR:
case VAR_BYT:
case VAR_FNC:
result = variable_copy(context, indexable);
break;
default: {
struct byte_array *vv = variable_value(context, indexable);
result = variable_new_str(context, vv);
byte_array_del(vv);
break;
}
}
}
else if (!strcmp(idxstr, FNC_LIST))
result = variable_new_list(context, indexable->list.ordered);
else if (!strcmp(idxstr, FNC_KEY)) {
if (indexable->type == VAR_KVP)
result = indexable->kvp.key;
else
result = variable_new_nil(context);
}
else if (!strcmp(idxstr, FNC_VAL)) {
if (indexable->type == VAR_KVP)
result = indexable->kvp.val;
else
result = variable_new_nil(context);
}
else if (!strcmp(idxstr, FNC_KEYS))
result = variable_map_list(context, indexable, &map_keys);
else if (!strcmp(idxstr, FNC_VALS))
result = variable_map_list(context, indexable, &map_vals);
else if (!strcmp(idxstr, FNC_PACK))
result = variable_new_cfnc(context, &cfnc_pack);
else if (!strcmp(idxstr, FNC_SERIALIZE))
result = variable_new_cfnc(context, &cfnc_serialize);
else if (!strcmp(idxstr, FNC_DESERIALIZE))
result = variable_new_cfnc(context, &cfnc_deserialize);
else if (!strcmp(idxstr, FNC_SORT)) {
assert_message(indexable->type == VAR_LST, "sorting non-list");
result = variable_new_cfnc(context, &cfnc_sort);
}
else if (!strcmp(idxstr, FNC_CHAR))
result = variable_new_cfnc(context, &cfnc_char);
else if (!strcmp(idxstr, FNC_HAS))
result = variable_new_cfnc(context, &cfnc_has);
else if (!strcmp(idxstr, FNC_FIND))
result = variable_new_cfnc(context, &cfnc_find);
else if (!strcmp(idxstr, FNC_PART))
result = variable_new_cfnc(context, &cfnc_part);
else if (!strcmp(idxstr, FNC_REMOVE))
result = variable_new_cfnc(context, &cfnc_remove);
else if (!strcmp(idxstr, FNC_INSERT))
result = variable_new_cfnc(context, &cfnc_insert);
else if (!strcmp(idxstr, FNC_REPLACE))
result = variable_new_cfnc(context, &cfnc_replace);
free(idxstr);
return result;
}
