NODE *
rb_method_node(VALUE klass, ID id)
{
return NULL;
#if 0 // TODO
NODE *node = rb_objc_method_node(klass, id, NULL, NULL);
if (node == NULL && id != ID_ALLOCATOR) {
const char *id_str = rb_id2name(id);
size_t slen = strlen(id_str);
if (strcmp(id_str, "retain") == 0
|| strcmp(id_str, "release") == 0
|| strcmp(id_str, "zone") == 0) {
char buf[100];
snprintf(buf, sizeof buf, "__rb_%s__", id_str);
return rb_method_node(klass, rb_intern(buf));
}
else {
if (id_str[slen - 1] == ':') {
return NULL;
}
else {
char buf[100];
snprintf(buf, sizeof buf, "%s:", id_str);
return rb_method_node(klass, rb_intern(buf));
}
}
}
return node;
#endif
}
static inline VALUE
vm_call_super(rb_thread_t * const th, const int argc, const VALUE * const argv)
{
VALUE recv = th->cfp->self;
VALUE klass;
ID id;
NODE *body;
rb_control_frame_t *cfp = th->cfp;
if (!cfp->iseq) {
klass = cfp->method_class;
klass = RCLASS_SUPER(klass);
if (klass == 0) {
klass = vm_search_normal_superclass(cfp->method_class, recv);
}
id = cfp->method_id;
}
else {
rb_bug("vm_call_super: should not be reached");
}
body = rb_method_node(klass, id); /* this returns NODE_METHOD */
if (!body) {
return method_missing(recv, id, argc, argv, 0);
}
return vm_call0(th, klass, recv, id, (ID)body->nd_file,
argc, argv, body->nd_body, CALL_SUPER);
}
static inline void
vm_send_optimize(rb_control_frame_t * const reg_cfp, NODE ** const mn,
rb_num_t * const flag, rb_num_t * const num,
ID * const id, const VALUE klass)
{
if (*mn && nd_type((*mn)->nd_body) == NODE_CFUNC) {
NODE *node = (*mn)->nd_body;
extern VALUE rb_f_send(int argc, VALUE *argv, VALUE recv);
if (node->nd_cfnc == rb_f_send) {
int i = *num - 1;
VALUE sym = TOPN(i);
*id = SYMBOL_P(sym) ? SYM2ID(sym) : rb_to_id(sym);
/* shift arguments */
if (i > 0) {
MEMMOVE(&TOPN(i), &TOPN(i-1), VALUE, i);
}
*mn = rb_method_node(klass, *id);
*num -= 1;
DEC_SP(1);
*flag |= VM_CALL_FCALL_BIT;
}
}
}
int
rb_method_basic_definition_p(VALUE klass, ID id)
{
NODE *node = rb_method_node(klass, id);
if (node && (node->nd_noex & NOEX_BASIC))
return 1;
return 0;
}
rb_alloc_func_t
rb_get_alloc_func(VALUE klass)
{
NODE *n;
Check_Type(klass, T_CLASS);
n = rb_method_node(CLASS_OF(klass), ID_ALLOCATOR);
if (!n) return 0;
if (nd_type(n) != NODE_METHOD) return 0;
n = n->nd_body;
if (nd_type(n) != NODE_CFUNC) return 0;
return (rb_alloc_func_t)n->nd_cfnc;
}
static VALUE
rb_mod_protected_method_defined(VALUE mod, VALUE mid)
{
ID id = rb_to_id(mid);
NODE *method;
method = rb_method_node(mod, id);
if (method) {
if (VISI_CHECK(method->nd_noex, NOEX_PROTECTED))
return Qtrue;
}
return Qfalse;
}
static VALUE
rb_mod_public_method_defined(VALUE mod, VALUE mid)
{
ID id = rb_to_id(mid);
NODE *method;
method = rb_method_node(mod, id);
if (method) {
if (VISI_CHECK(method->nd_noex, NOEX_PUBLIC))
return Qtrue;
}
return Qfalse;
}
int
rb_method_boundp(VALUE klass, ID id, int ex)
{
NODE *method;
if ((method = rb_method_node(klass, id)) != 0) {
if (ex && (method->nd_noex & NOEX_PRIVATE)) {
return Qfalse;
}
return Qtrue;
}
return Qfalse;
}
static VALUE
rb_mod_private_method_defined(VALUE mod, SEL sel, VALUE mid)
{
ID id = rb_to_id(mid);
NODE *method;
method = rb_method_node(mod, id);
if (method) {
if (VISI_CHECK(method->nd_noex, NOEX_PRIVATE))
return Qtrue;
}
return Qfalse;
}
static NODE *
search_method(VALUE klass, ID id, VALUE *klassp)
{
NODE *node;
if (klass == 0) {
return NULL;
}
node = rb_method_node(klass, id);
if (node != NULL) {
if (klassp != NULL) { /* TODO honour klassp */
*klassp = klass;
}
}
return node;
}
int
rb_obj_respond_to(VALUE obj, ID id, int priv)
{
VALUE klass = CLASS_OF(obj);
if (rb_method_node(klass, idRespond_to) == basic_respond_to) {
return rb_method_boundp(klass, id, !priv);
}
else {
VALUE args[2];
int n = 0;
args[n++] = ID2SYM(id);
if (priv)
args[n++] = Qtrue;
return RTEST(rb_funcall2(obj, idRespond_to, n, args));
}
}
void
Init_eval_method(void)
{
#undef rb_intern
rb_define_method(rb_mKernel, "respond_to?", obj_respond_to, -1);
basic_respond_to = rb_method_node(rb_cObject, idRespond_to);
rb_register_mark_object((VALUE)basic_respond_to);
rb_define_private_method(rb_cModule, "remove_method", rb_mod_remove_method, -1);
rb_define_private_method(rb_cModule, "undef_method", rb_mod_undef_method, -1);
rb_define_private_method(rb_cModule, "alias_method", rb_mod_alias_method, 2);
rb_define_private_method(rb_cModule, "public", rb_mod_public, -1);
rb_define_private_method(rb_cModule, "protected", rb_mod_protected, -1);
rb_define_private_method(rb_cModule, "private", rb_mod_private, -1);
rb_define_private_method(rb_cModule, "module_function", rb_mod_modfunc, -1);
rb_define_method(rb_cModule, "method_defined?", rb_mod_method_defined, 1);
rb_define_method(rb_cModule, "public_method_defined?", rb_mod_public_method_defined, 1);
rb_define_method(rb_cModule, "private_method_defined?", rb_mod_private_method_defined, 1);
rb_define_method(rb_cModule, "protected_method_defined?", rb_mod_protected_method_defined, 1);
rb_define_method(rb_cModule, "public_class_method", rb_mod_public_method, -1);
rb_define_method(rb_cModule, "private_class_method", rb_mod_private_method, -1);
rb_define_singleton_method(rb_vm_top_self(), "public", top_public, -1);
rb_define_singleton_method(rb_vm_top_self(), "private", top_private, -1);
object_id = rb_intern("object_id");
__send__ = rb_intern("__send__");
eqq = rb_intern("===");
each = rb_intern("each");
aref = rb_intern("[]");
aset = rb_intern("[]=");
match = rb_intern("=~");
missing = rb_intern("method_missing");
added = rb_intern("method_added");
singleton_added = rb_intern("singleton_method_added");
removed = rb_intern("method_removed");
singleton_removed = rb_intern("singleton_method_removed");
undefined = rb_intern("method_undefined");
singleton_undefined = rb_intern("singleton_method_undefined");
}
static inline VALUE
vm_call0(rb_thread_t * th, VALUE klass, VALUE recv, VALUE id, ID oid,
int argc, const VALUE *argv, const NODE *body, int nosuper)
{
VALUE val;
rb_block_t *blockptr = 0;
if (0) printf("id: %s, nd: %s, argc: %d, passed: %p\n",
rb_id2name(id), ruby_node_name(nd_type(body)),
argc, (void *)th->passed_block);
if (th->passed_block) {
blockptr = th->passed_block;
th->passed_block = 0;
}
again:
switch (nd_type(body)) {
case RUBY_VM_METHOD_NODE:{
rb_control_frame_t *reg_cfp;
VALUE iseqval = (VALUE)body->nd_body;
int i;
rb_vm_set_finish_env(th);
reg_cfp = th->cfp;
CHECK_STACK_OVERFLOW(reg_cfp, argc + 1);
*reg_cfp->sp++ = recv;
for (i = 0; i < argc; i++) {
*reg_cfp->sp++ = argv[i];
}
vm_setup_method(th, reg_cfp, argc, blockptr, 0, iseqval, recv);
val = vm_exec(th);
break;
}
case NODE_CFUNC: {
EXEC_EVENT_HOOK(th, RUBY_EVENT_C_CALL, recv, id, klass);
{
rb_control_frame_t *reg_cfp = th->cfp;
rb_control_frame_t *cfp =
vm_push_frame(th, 0, VM_FRAME_MAGIC_CFUNC,
recv, (VALUE)blockptr, 0, reg_cfp->sp, 0, 1);
cfp->method_id = oid;
cfp->method_class = klass;
val = call_cfunc(body->nd_cfnc, recv, body->nd_argc, argc, argv);
if (reg_cfp != th->cfp + 1) {
SDR2(reg_cfp);
SDR2(th->cfp-5);
rb_bug("cfp consistency error - call0");
th->cfp = reg_cfp;
}
vm_pop_frame(th);
}
EXEC_EVENT_HOOK(th, RUBY_EVENT_C_RETURN, recv, id, klass);
break;
}
case NODE_ATTRSET:{
if (argc != 1) {
rb_raise(rb_eArgError, "wrong number of arguments (%d for 1)", argc);
}
val = rb_ivar_set(recv, body->nd_vid, argv[0]);
break;
}
case NODE_IVAR: {
if (argc != 0) {
rb_raise(rb_eArgError, "wrong number of arguments (%d for 0)",
argc);
}
val = rb_attr_get(recv, body->nd_vid);
break;
}
case NODE_BMETHOD:{
val = vm_call_bmethod(th, oid, body->nd_cval,
recv, klass, argc, (VALUE *)argv, blockptr);
break;
}
case NODE_ZSUPER:{
klass = RCLASS_SUPER(klass);
if (!klass || !(body = rb_method_node(klass, id))) {
return method_missing(recv, id, argc, argv, 0);
}
RUBY_VM_CHECK_INTS();
nosuper = CALL_SUPER;
body = body->nd_body;
goto again;
}
default:
rb_bug("unsupported: vm_call0(%s)", ruby_node_name(nd_type(body)));
}
RUBY_VM_CHECK_INTS();
return val;
}
int
rb_mod_method_arity(VALUE mod, ID id)
{
NODE *node = rb_method_node(mod, id);
return rb_node_arity(node);
}
static inline VALUE
vm_call_method(rb_thread_t * const th, rb_control_frame_t * const cfp,
const int num, rb_block_t * const blockptr, const VALUE flag,
const ID id, const NODE * mn, const VALUE recv)
{
VALUE val;
start_method_dispatch:
if (mn != 0) {
if ((mn->nd_noex == 0)) {
/* dispatch method */
NODE *node;
normal_method_dispatch:
node = mn->nd_body;
switch (nd_type(node)) {
case RUBY_VM_METHOD_NODE:{
vm_setup_method(th, cfp, num, blockptr, flag, (VALUE)node->nd_body, recv);
return Qundef;
}
case NODE_CFUNC:{
val = vm_call_cfunc(th, cfp, num, id, (ID)mn->nd_file, recv, mn->nd_clss, flag, node, blockptr);
break;
}
case NODE_ATTRSET:{
val = rb_ivar_set(recv, node->nd_vid, *(cfp->sp - 1));
cfp->sp -= 2;
break;
}
case NODE_IVAR:{
if (num != 0) {
rb_raise(rb_eArgError, "wrong number of arguments (%d for 0)",
num);
}
val = rb_attr_get(recv, node->nd_vid);
cfp->sp -= 1;
break;
}
case NODE_BMETHOD:{
VALUE *argv = ALLOCA_N(VALUE, num);
MEMCPY(argv, cfp->sp - num, VALUE, num);
cfp->sp += - num - 1;
val = vm_call_bmethod(th, (ID)mn->nd_file, node->nd_cval, recv, mn->nd_clss, num, argv, blockptr);
break;
}
case NODE_ZSUPER:{
VALUE klass;
klass = RCLASS_SUPER(mn->nd_clss);
mn = rb_method_node(klass, id);
if (mn != 0) {
goto normal_method_dispatch;
}
else {
goto start_method_dispatch;
}
}
default:{
printf("node: %s\n", ruby_node_name(nd_type(node)));
rb_bug("eval_invoke_method: unreachable");
/* unreachable */
break;
}
}
}
else {
int noex_safe;
if (!(flag & VM_CALL_FCALL_BIT) &&
(mn->nd_noex & NOEX_MASK) & NOEX_PRIVATE) {
int stat = NOEX_PRIVATE;
if (flag & VM_CALL_VCALL_BIT) {
stat |= NOEX_VCALL;
}
val = vm_method_missing(th, id, recv, num, blockptr, stat);
}
else if (((mn->nd_noex & NOEX_MASK) & NOEX_PROTECTED) &&
!(flag & VM_CALL_SEND_BIT)) {
VALUE defined_class = mn->nd_clss;
if (TYPE(defined_class) == T_ICLASS) {
defined_class = RBASIC(defined_class)->klass;
}
if (!rb_obj_is_kind_of(cfp->self, rb_class_real(defined_class))) {
val = vm_method_missing(th, id, recv, num, blockptr, NOEX_PROTECTED);
}
else {
goto normal_method_dispatch;
}
}
else if ((noex_safe = NOEX_SAFE(mn->nd_noex)) > th->safe_level &&
(noex_safe > 2)) {
rb_raise(rb_eSecurityError, "calling insecure method: %s", rb_id2name(id));
}
else {
goto normal_method_dispatch;
}
}
}
else {
/* method missing */
if (id == idMethodMissing) {
rb_bug("method missing");
}
else {
int stat = 0;
if (flag & VM_CALL_VCALL_BIT) {
stat |= NOEX_VCALL;
}
if (flag & VM_CALL_SUPER_BIT) {
stat |= NOEX_SUPER;
}
val = vm_method_missing(th, id, recv, num, blockptr, stat);
}
}
RUBY_VM_CHECK_INTS();
return val;
}