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marshal.c: rb_check_funcall_with_hook

* vm_eval.c (rb_check_funcall_with_hook): rb_check_funcall with hook
  which is called before calling method_missing or target method.
* marshal.c (w_object, r_object0): use rb_check_funcall_with_hook
  instead of respond_to? and call.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38568 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2012-12-23 06:05:50 +00:00
parent 450b9bb6cb
commit 0fe46ceae3
4 changed files with 136 additions and 45 deletions

View file

@ -1,3 +1,11 @@
Sun Dec 23 15:05:48 2012 Nobuyoshi Nakada <nobu@ruby-lang.org>
* vm_eval.c (rb_check_funcall_with_hook): rb_check_funcall with hook
which is called before calling method_missing or target method.
* marshal.c (w_object, r_object0): use rb_check_funcall_with_hook
instead of respond_to? and call.
Sun Dec 23 14:52:00 2012 Zachary Scott <zachary@zacharyscott.net>
* re.c (rb_reg_eqq): doc: #=== is not a synonym for #=~, added example

View file

@ -312,6 +312,9 @@ void rb_vm_bugreport(void);
void Init_vm_eval(void);
VALUE rb_current_realfilepath(void);
VALUE rb_check_block_call(VALUE, ID, int, VALUE *, VALUE (*)(ANYARGS), VALUE);
typedef void rb_check_funcall_hook(int, VALUE, ID, int, VALUE *, VALUE);
VALUE rb_check_funcall_with_hook(VALUE recv, ID mid, int argc, VALUE *argv,
rb_check_funcall_hook *hook, VALUE arg);
/* vm_method.c */
void Init_eval_method(void);

View file

@ -586,6 +586,15 @@ w_objivar(VALUE obj, struct dump_call_arg *arg)
}
}
static void
push_dump_object(int found, VALUE recv, ID mid, int argc, VALUE *argv, VALUE data)
{
if (found) {
struct dump_arg *arg = (struct dump_arg *)data;
st_add_direct(arg->data, recv, arg->data->num_entries);
}
}
static void
w_object(VALUE obj, struct dump_arg *arg, int limit)
{
@ -646,10 +655,8 @@ w_object(VALUE obj, struct dump_arg *arg, int limit)
arg->infection |= (int)FL_TEST(obj, MARSHAL_INFECTION);
if (rb_obj_respond_to(obj, s_mdump, TRUE)) {
st_add_direct(arg->data, obj, arg->data->num_entries);
v = rb_funcall2(obj, s_mdump, 0, 0);
v = rb_check_funcall_with_hook(obj, s_mdump, 0, 0, push_dump_object, (VALUE)arg);
if (v != Qundef) {
check_dump_arg(arg, s_mdump);
hasiv = has_ivars(obj, ivtbl);
if (hasiv) w_byte(TYPE_IVAR, arg);
@ -1026,6 +1033,7 @@ static VALUE r_entry0(VALUE v, st_index_t num, struct load_arg *arg);
static VALUE r_object(struct load_arg *arg);
static ID r_symbol(struct load_arg *arg);
static VALUE path2class(VALUE path);
static VALUE r_object0(struct load_arg *arg, int *ivp, VALUE extmod);
NORETURN(static void too_short(void));
static void
@ -1434,6 +1442,42 @@ append_extmod(VALUE obj, VALUE extmod)
return obj;
}
static void
load_data_hook(int found, VALUE recv, ID mid, int argc, VALUE *argv, VALUE data)
{
if (found) {
struct load_arg *arg = (struct load_arg *)((VALUE *)data)[0];
VALUE extmod = ((VALUE *)data)[1];
*argv = r_object0(arg, 0, extmod);
}
}
static void
load_userdef_hook(int found, VALUE recv, ID mid, int argc, VALUE *argv, VALUE data)
{
if (found) {
struct load_arg *arg = (struct load_arg *)((VALUE *)data)[0];
int *ivp = (int *)((VALUE *)data)[1];
VALUE r = r_string(arg);
if (ivp) {
r_ivar(r, NULL, arg);
*ivp = FALSE;
}
*argv = r;
}
}
static void
mload_hook(int found, VALUE recv, ID mid, int argc, VALUE *argv, VALUE data)
{
if (found) {
struct load_arg *arg = (struct load_arg *)((VALUE *)data)[0];
VALUE v = ((VALUE *)data)[1];
r_entry(v, arg);
*argv = r_object(arg);
}
}
static VALUE
r_object0(struct load_arg *arg, int *ivp, VALUE extmod)
{
@ -1441,6 +1485,7 @@ r_object0(struct load_arg *arg, int *ivp, VALUE extmod)
int type = r_byte(arg);
long id;
st_data_t link;
VALUE args[2];
switch (type) {
case TYPE_LINK:
@ -1718,16 +1763,14 @@ r_object0(struct load_arg *arg, int *ivp, VALUE extmod)
VALUE klass = path2class(r_unique(arg));
VALUE data;
if (!rb_obj_respond_to(klass, s_load, TRUE)) {
args[0] = (VALUE)arg;
args[1] = (VALUE)ivp;
v = rb_check_funcall_with_hook(klass, s_load, 1, &data,
load_userdef_hook, (VALUE)args);
if (v == Qundef) {
rb_raise(rb_eTypeError, "class %s needs to have method `_load'",
rb_class2name(klass));
}
data = r_string(arg);
if (ivp) {
r_ivar(data, NULL, arg);
*ivp = FALSE;
}
v = rb_funcall2(klass, s_load, 1, &data);
check_load_arg(arg, s_load);
v = r_entry(v, arg);
v = r_leave(v, arg);
@ -1745,13 +1788,13 @@ r_object0(struct load_arg *arg, int *ivp, VALUE extmod)
/* for the case marshal_load is overridden */
append_extmod(v, extmod);
}
if (!rb_obj_respond_to(v, s_mload, TRUE)) {
args[0] = (VALUE)arg;
args[1] = v;
data = rb_check_funcall_with_hook(v, s_mload, 1, &data, mload_hook, (VALUE)args);
if (data == Qundef) {
rb_raise(rb_eTypeError, "instance of %s needs to have method `marshal_load'",
rb_class2name(klass));
}
v = r_entry(v, arg);
data = r_object(arg);
rb_funcall2(v, s_mload, 1, &data);
check_load_arg(arg, s_mload);
v = r_leave(v, arg);
if (!NIL_P(extmod)) {
@ -1785,13 +1828,14 @@ r_object0(struct load_arg *arg, int *ivp, VALUE extmod)
rb_raise(rb_eArgError, "dump format error");
}
v = r_entry(v, arg);
if (!rb_obj_respond_to(v, s_load_data, TRUE)) {
args[0] = (VALUE)arg;
args[1] = extmod;
r = rb_check_funcall_with_hook(v, s_load_data, 1, &r, load_data_hook, (VALUE)args);
if (r == Qundef) {
rb_raise(rb_eTypeError,
"class %s needs to have instance method `_load_data'",
rb_class2name(klass));
}
r = r_object0(arg, 0, extmod);
rb_funcall2(v, s_load_data, 1, &r);
check_load_arg(arg, s_load_data);
v = r_leave(v, arg);
}

View file

@ -338,16 +338,12 @@ check_funcall_failed(struct rescue_funcall_args *args, VALUE e)
return Qundef;
}
static VALUE
check_funcall(VALUE recv, ID mid, int argc, VALUE *argv)
static int
check_funcall_respond_to(rb_thread_t *th, VALUE klass, VALUE recv, ID mid)
{
VALUE klass = CLASS_OF(recv);
const rb_method_entry_t *me;
rb_thread_t *th = GET_THREAD();
int call_status;
VALUE defined_class;
const rb_method_entry_t *me = rb_method_entry(klass, idRespond_to, &defined_class);
me = rb_method_entry(klass, idRespond_to, &defined_class);
if (me && !(me->flag & NOEX_BASIC)) {
VALUE args[2];
int arity = rb_method_entry_arity(me);
@ -360,37 +356,77 @@ check_funcall(VALUE recv, ID mid, int argc, VALUE *argv)
args[0] = ID2SYM(mid);
args[1] = Qtrue;
if (!RTEST(vm_call0(th, recv, idRespond_to, arity, args, me, defined_class))) {
return Qundef;
return FALSE;
}
}
return TRUE;
}
static int
check_funcall_callable(rb_thread_t *th, const rb_method_entry_t *me)
{
return rb_method_call_status(th, me, CALL_FCALL, th->cfp->self) == NOEX_OK;
}
static VALUE
check_funcall_missing(rb_thread_t *th, VALUE klass, VALUE recv, ID mid, int argc, VALUE *argv)
{
if (rb_method_basic_definition_p(klass, idMethodMissing)) {
return Qundef;
}
else {
struct rescue_funcall_args args;
th->method_missing_reason = 0;
args.recv = recv;
args.sym = ID2SYM(mid);
args.argc = argc;
args.argv = argv;
return rb_rescue2(check_funcall_exec, (VALUE)&args,
check_funcall_failed, (VALUE)&args,
rb_eNoMethodError, (VALUE)0);
}
}
VALUE
rb_check_funcall(VALUE recv, ID mid, int argc, VALUE *argv)
{
VALUE klass = CLASS_OF(recv);
const rb_method_entry_t *me;
rb_thread_t *th = GET_THREAD();
VALUE defined_class;
if (!check_funcall_respond_to(th, klass, recv, mid))
return Qundef;
me = rb_search_method_entry(recv, mid, &defined_class);
call_status = rb_method_call_status(th, me, CALL_FCALL, th->cfp->self);
if (call_status != NOEX_OK) {
if (rb_method_basic_definition_p(klass, idMethodMissing)) {
return Qundef;
}
else {
struct rescue_funcall_args args;
th->method_missing_reason = 0;
args.recv = recv;
args.sym = ID2SYM(mid);
args.argc = argc;
args.argv = argv;
return rb_rescue2(check_funcall_exec, (VALUE)&args,
check_funcall_failed, (VALUE)&args,
rb_eNoMethodError, (VALUE)0);
}
if (check_funcall_callable(th, me) != NOEX_OK) {
return check_funcall_missing(th, klass, recv, mid, argc, argv);
}
stack_check();
return vm_call0(th, recv, mid, argc, argv, me, defined_class);
}
VALUE
rb_check_funcall(VALUE recv, ID mid, int argc, VALUE *argv)
rb_check_funcall_with_hook(VALUE recv, ID mid, int argc, VALUE *argv,
rb_check_funcall_hook *hook, VALUE arg)
{
return check_funcall(recv, mid, argc, argv);
VALUE klass = CLASS_OF(recv);
const rb_method_entry_t *me;
rb_thread_t *th = GET_THREAD();
VALUE defined_class;
if (!check_funcall_respond_to(th, klass, recv, mid))
return Qundef;
me = rb_search_method_entry(recv, mid, &defined_class);
if (check_funcall_callable(th, me) != NOEX_OK) {
(*hook)(FALSE, recv, mid, argc, argv, arg);
return check_funcall_missing(th, klass, recv, mid, argc, argv);
}
stack_check();
(*hook)(TRUE, recv, mid, argc, argv, arg);
return vm_call0(th, recv, mid, argc, argv, me, defined_class);
}
static const char *