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attempting to touch up the context object

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hyung-hwan 2022-02-03 00:57:36 +00:00
parent 5ded15d06a
commit d1c12bc543
4 changed files with 51 additions and 44 deletions
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73
lib/exec.c
View File

@ -93,7 +93,7 @@ static hcl_ooch_t oocstr_dash[] = { '-', '\0' };
{ \ { \
STORE_ACTIVE_IP (hcl); \ STORE_ACTIVE_IP (hcl); \
(hcl)->active_context = (v_ctx); \ (hcl)->active_context = (v_ctx); \
(hcl)->active_function = (hcl)->active_context->origin->receiver_or_base; \ (hcl)->active_function = (hcl)->active_context->origin->base; \
(hcl)->active_code = HCL_FUNCTION_GET_CODE_BYTE((hcl)->active_function); \ (hcl)->active_code = HCL_FUNCTION_GET_CODE_BYTE((hcl)->active_function); \
LOAD_ACTIVE_IP (hcl); \ LOAD_ACTIVE_IP (hcl); \
(hcl)->processor->active->current_context = (hcl)->active_context; \ (hcl)->processor->active->current_context = (hcl)->active_context; \
@ -1885,10 +1885,10 @@ void hcl_releaseiohandle (hcl_t* hcl, hcl_ooi_t io_handle)
/* ------------------------------------------------------------------------- */ /* ------------------------------------------------------------------------- */
static int prepare_new_context (hcl_t* hcl, hcl_oop_block_t rcv_blk, hcl_ooi_t nargs, int nargs_offset, hcl_ooi_t req_nrvars, int copy_args, hcl_oop_context_t* pnewctx) static int prepare_new_context (hcl_t* hcl, hcl_oop_block_t op_blk, hcl_ooi_t nargs, int nargs_offset, hcl_ooi_t req_nrvars, int copy_args, int is_msgsend, hcl_oop_context_t* pnewctx)
{ {
/* prepare a new block context for activation. the receiver must be a block /* prepare a new block context for activation.
* context which becomes the base for a new block context. */ * the passed block context becomes the base for a new block context. */
hcl_oop_context_t blkctx; hcl_oop_context_t blkctx;
hcl_ooi_t tmpr_mask; hcl_ooi_t tmpr_mask;
@ -1896,9 +1896,9 @@ static int prepare_new_context (hcl_t* hcl, hcl_oop_block_t rcv_blk, hcl_ooi_t n
hcl_ooi_t fixed_nargs, actual_nargs, excess_nargs; hcl_ooi_t fixed_nargs, actual_nargs, excess_nargs;
/* the receiver must be a block context */ /* the receiver must be a block context */
HCL_ASSERT (hcl, HCL_IS_BLOCK(hcl, rcv_blk)); HCL_ASSERT (hcl, HCL_IS_BLOCK(hcl, op_blk));
tmpr_mask = HCL_OOP_TO_SMOOI(rcv_blk->tmpr_mask); tmpr_mask = HCL_OOP_TO_SMOOI(op_blk->tmpr_mask);
fblk_nrvars = GET_BLKTMPR_MASK_NRVARS(tmpr_mask); fblk_nrvars = GET_BLKTMPR_MASK_NRVARS(tmpr_mask);
fblk_nlvars = GET_BLKTMPR_MASK_NLVARS(tmpr_mask); fblk_nlvars = GET_BLKTMPR_MASK_NLVARS(tmpr_mask);
@ -1910,7 +1910,7 @@ static int prepare_new_context (hcl_t* hcl, hcl_oop_block_t rcv_blk, hcl_ooi_t n
{ {
HCL_LOG3 (hcl, HCL_LOG_IC | HCL_LOG_ERROR, HCL_LOG3 (hcl, HCL_LOG_IC | HCL_LOG_ERROR,
"Error - wrong number of arguments to a block %O - expecting %zd, got %zd\n", "Error - wrong number of arguments to a block %O - expecting %zd, got %zd\n",
rcv_blk, fixed_nargs, actual_nargs); op_blk, fixed_nargs, actual_nargs);
hcl_seterrbfmt (hcl, HCL_ECALLARG, "wrong number of argument passed to function block - %zd expected, %zd passed", fixed_nargs, actual_nargs); hcl_seterrbfmt (hcl, HCL_ECALLARG, "wrong number of argument passed to function block - %zd expected, %zd passed", fixed_nargs, actual_nargs);
return -1; return -1;
} }
@ -1919,13 +1919,13 @@ static int prepare_new_context (hcl_t* hcl, hcl_oop_block_t rcv_blk, hcl_ooi_t n
{ {
HCL_LOG3 (hcl, HCL_LOG_IC | HCL_LOG_ERROR, HCL_LOG3 (hcl, HCL_LOG_IC | HCL_LOG_ERROR,
"Error - wrong number of returns specified of a block %O - max expected %zd, requested %zd\n", "Error - wrong number of returns specified of a block %O - max expected %zd, requested %zd\n",
rcv_blk, fblk_nrvars, req_nrvars); op_blk, fblk_nrvars, req_nrvars);
hcl_seterrbfmt (hcl, HCL_ECALLRET, "wrong number of returns requested of function block - %zd expected at most, %zd requested", fblk_nrvars, req_nrvars); hcl_seterrbfmt (hcl, HCL_ECALLRET, "wrong number of returns requested of function block - %zd expected at most, %zd requested", fblk_nrvars, req_nrvars);
return -1; return -1;
} }
/* create a new block context to clone rcv_blk */ /* create a new block context to clone op_blk */
hcl_pushvolat (hcl, (hcl_oop_t*)&rcv_blk); hcl_pushvolat (hcl, (hcl_oop_t*)&op_blk);
blkctx = make_context(hcl, fixed_nargs + fblk_nrvars + fblk_nlvars + excess_nargs); blkctx = make_context(hcl, fixed_nargs + fblk_nrvars + fblk_nlvars + excess_nargs);
hcl_popvolat (hcl); hcl_popvolat (hcl);
if (HCL_UNLIKELY(!blkctx)) return -1; if (HCL_UNLIKELY(!blkctx)) return -1;
@ -1934,16 +1934,17 @@ static int prepare_new_context (hcl_t* hcl, hcl_oop_block_t rcv_blk, hcl_ooi_t n
/* shallow-copy the named part including home, origin, etc. */ /* shallow-copy the named part including home, origin, etc. */
for (i = 0; i < HCL_CONTEXT_NAMED_INSTVARS; i++) for (i = 0; i < HCL_CONTEXT_NAMED_INSTVARS; i++)
{ {
((hcl_oop_oop_t)blkctx)->slot[i] = ((hcl_oop_oop_t)rcv_blk)->slot[i]; ((hcl_oop_oop_t)blkctx)->slot[i] = ((hcl_oop_oop_t)op_blk)->slot[i];
} }
#else #else
blkctx->ip = rcv_blk->ip; blkctx->ip = op_blk->ip;
blkctx->req_nrets = HCL_SMOOI_TO_OOP(req_nrvars); blkctx->req_nrets = HCL_SMOOI_TO_OOP(req_nrvars);
blkctx->tmpr_mask = rcv_blk->tmpr_mask; blkctx->tmpr_mask = op_blk->tmpr_mask;
blkctx->receiver_or_base = (hcl_oop_t)rcv_blk; blkctx->base = (hcl_oop_t)op_blk;
blkctx->home = rcv_blk->home; blkctx->home = op_blk->home;
/* blkctx->origin = rcv_blk->origin; */ /* blkctx->origin = op_blk->origin; */
blkctx->origin = rcv_blk->home->origin; blkctx->origin = op_blk->home->origin;
blkctx->receiver = is_msgsend? HCL_STACK_GETRCV(hcl, nargs): op_blk->home->receiver;
#endif #endif
if (HCL_LIKELY(copy_args)) if (HCL_LIKELY(copy_args))
@ -1970,7 +1971,7 @@ static int prepare_new_context (hcl_t* hcl, hcl_oop_block_t rcv_blk, hcl_ooi_t n
return 0; return 0;
} }
static HCL_INLINE int __activate_block (hcl_t* hcl, hcl_oop_block_t op, hcl_ooi_t nargs, hcl_ooi_t nrvars, hcl_oop_context_t* pnewctx) static HCL_INLINE int __activate_block (hcl_t* hcl, hcl_oop_block_t op, hcl_ooi_t nargs, hcl_ooi_t nrvars, int is_msgsend, hcl_oop_context_t* pnewctx)
{ {
int x; int x;
@ -1983,6 +1984,7 @@ static HCL_INLINE int __activate_block (hcl_t* hcl, hcl_oop_block_t op, hcl_ooi_
0, /* nargs_offset */ 0, /* nargs_offset */
nrvars, nrvars,
1, /* copy_args */ 1, /* copy_args */
is_msgsend,
pnewctx); pnewctx);
if (HCL_UNLIKELY(x <= -1)) return -1; if (HCL_UNLIKELY(x <= -1)) return -1;
@ -2001,7 +2003,7 @@ static HCL_INLINE int activate_block (hcl_t* hcl, hcl_ooi_t nargs, hcl_ooi_t nrv
op = (hcl_oop_block_t)HCL_STACK_GETOP(hcl, nargs); op = (hcl_oop_block_t)HCL_STACK_GETOP(hcl, nargs);
HCL_ASSERT (hcl, HCL_IS_BLOCK(hcl, op)); HCL_ASSERT (hcl, HCL_IS_BLOCK(hcl, op));
x = __activate_block(hcl, op, nargs, nrvars, &newctx); x = __activate_block(hcl, op, nargs, nrvars, 0, &newctx);
if (HCL_UNLIKELY(x <= -1)) return -1; if (HCL_UNLIKELY(x <= -1)) return -1;
SWITCH_ACTIVE_CONTEXT (hcl, newctx); SWITCH_ACTIVE_CONTEXT (hcl, newctx);
@ -2057,9 +2059,10 @@ static int __activate_function (hcl_t* hcl, hcl_oop_function_t op_func, hcl_ooi_
functx->ip = HCL_SMOOI_TO_OOP(0); functx->ip = HCL_SMOOI_TO_OOP(0);
functx->req_nrets = HCL_SMOOI_TO_OOP(1); functx->req_nrets = HCL_SMOOI_TO_OOP(1);
functx->tmpr_mask = op_func->tmpr_mask; functx->tmpr_mask = op_func->tmpr_mask;
functx->receiver_or_base = (hcl_oop_t)op_func; functx->base = (hcl_oop_t)op_func;
functx->home = op_func->home; functx->home = op_func->home;
functx->origin = functx; /* the origin of the context over a function should be itself */ functx->origin = functx; /* the origin of the context over a function should be itself */
functx->receiver = HCL_STACK_GETRCV(hcl, nargs);
/* copy the fixed arguments to the beginning of the variable part of the context block */ /* copy the fixed arguments to the beginning of the variable part of the context block */
for (i = 0, j = nargs_offset; i < fixed_nargs; i++, j++) for (i = 0, j = nargs_offset; i < fixed_nargs; i++, j++)
@ -2178,7 +2181,7 @@ static HCL_INLINE int send_message (hcl_t* hcl, hcl_oop_t rcv, hcl_oop_t op, int
return -1; return -1;
} }
x = __activate_block(hcl, mth, nargs, 0 /* TODO: not 0 */ , &newctx); x = __activate_block(hcl, mth, nargs, 0 /* TODO: not 0 */, 1 , &newctx);
if (HCL_UNLIKELY(x <= -1)) return -1; if (HCL_UNLIKELY(x <= -1)) return -1;
SWITCH_ACTIVE_CONTEXT (hcl, newctx); SWITCH_ACTIVE_CONTEXT (hcl, newctx);
@ -2498,7 +2501,8 @@ static int start_initial_process_and_context (hcl_t* hcl, hcl_ooi_t initial_ip,
ctx->origin = ctx; /* the origin of the initial context is itself as this is created over the initial function */ ctx->origin = ctx; /* the origin of the initial context is itself as this is created over the initial function */
ctx->home = hcl->initial_function->home; /* this should be nil */ ctx->home = hcl->initial_function->home; /* this should be nil */
ctx->sender = (hcl_oop_context_t)hcl->_nil; ctx->sender = (hcl_oop_context_t)hcl->_nil;
ctx->receiver_or_base = hcl->initial_function; ctx->base = hcl->initial_function;
ctx->receiver = (hcl_oop_context_t)hcl->_nil; /* TODO: change this? keep this in sync with the fake receiver used in the call instruction */
HCL_ASSERT (hcl, (hcl_oop_t)ctx->home == hcl->_nil); HCL_ASSERT (hcl, (hcl_oop_t)ctx->home == hcl->_nil);
/* [NOTE] /* [NOTE]
@ -3025,9 +3029,10 @@ static int execute (hcl_t* hcl)
b1 = bcode & 0x7; /* low 3 bits */ b1 = bcode & 0x7; /* low 3 bits */
push_instvar: push_instvar:
LOG_INST_1 (hcl, "push_instvar %zu", b1); LOG_INST_1 (hcl, "push_instvar %zu", b1);
HCL_ASSERT (hcl, HCL_OBJ_GET_FLAGS_TYPE(hcl->active_context->origin->receiver_or_base) == HCL_OBJ_TYPE_OOP); HCL_ASSERT (hcl, HCL_OBJ_GET_FLAGS_TYPE(hcl->active_context->origin->receiver) == HCL_OBJ_TYPE_OOP);
/* TODO: FIX TO OFFSET THE INHERTED PART... */ /* TODO: FIX TO OFFSET THE INHERTED PART... */
HCL_STACK_PUSH (hcl, ((hcl_oop_oop_t)hcl->active_context->origin->receiver_or_base)->slot[b1]); //HCL_STACK_PUSH (hcl, ((hcl_oop_oop_t)hcl->active_context->origin->receiver)->slot[b1]);
HCL_STACK_PUSH (hcl, ((hcl_oop_oop_t)hcl->active_context->receiver)->slot[b1]);
break; break;
/* ------------------------------------------------- */ /* ------------------------------------------------- */
@ -3046,8 +3051,8 @@ static int execute (hcl_t* hcl)
b1 = bcode & 0x7; /* low 3 bits */ b1 = bcode & 0x7; /* low 3 bits */
store_instvar: store_instvar:
LOG_INST_1 (hcl, "store_into_instvar %zu", b1); LOG_INST_1 (hcl, "store_into_instvar %zu", b1);
HCL_ASSERT (hcl, HCL_OBJ_GET_FLAGS_TYPE(hcl->active_context->receiver_or_base) == HCL_OBJ_TYPE_OOP); HCL_ASSERT (hcl, HCL_OBJ_GET_FLAGS_TYPE(hcl->active_context->receiver) == HCL_OBJ_TYPE_OOP);
((hcl_oop_oop_t)hcl->active_context->origin->receiver_or_base)->slot[b1] = HCL_STACK_GETTOP(hcl); ((hcl_oop_oop_t)hcl->active_context->origin->receiver)->slot[b1] = HCL_STACK_GETTOP(hcl);
break; break;
/* ------------------------------------------------- */ /* ------------------------------------------------- */
@ -3065,8 +3070,8 @@ static int execute (hcl_t* hcl)
b1 = bcode & 0x7; /* low 3 bits */ b1 = bcode & 0x7; /* low 3 bits */
pop_into_instvar: pop_into_instvar:
LOG_INST_1 (hcl, "pop_into_instvar %zu", b1); LOG_INST_1 (hcl, "pop_into_instvar %zu", b1);
HCL_ASSERT (hcl, HCL_OBJ_GET_FLAGS_TYPE(hcl->active_context->receiver_or_base) == HCL_OBJ_TYPE_OOP); HCL_ASSERT (hcl, HCL_OBJ_GET_FLAGS_TYPE(hcl->active_context->receiver) == HCL_OBJ_TYPE_OOP);
((hcl_oop_oop_t)hcl->active_context->origin->receiver_or_base)->slot[b1] = HCL_STACK_GETTOP(hcl); ((hcl_oop_oop_t)hcl->active_context->origin->receiver)->slot[b1] = HCL_STACK_GETTOP(hcl);
HCL_STACK_POP (hcl); HCL_STACK_POP (hcl);
break; break;
@ -3822,7 +3827,7 @@ HCL_DEBUG2 (hcl, "class_mstore %O %O\n", hcl->active_function->literal_frame[b1]
FETCH_PARAM_CODE_TO (hcl, b1); FETCH_PARAM_CODE_TO (hcl, b1);
LOG_INST_1 (hcl, "push_clsvar_m %zu", b1); LOG_INST_1 (hcl, "push_clsvar_m %zu", b1);
/* TODO: finish implementing CLSVAR_M_X instructions ....*/ /* TODO: finish implementing CLSVAR_M_X instructions ....*/
t = (hcl_oop_oop_t)hcl->active_context->origin->receiver_or_base; t = (hcl_oop_oop_t)hcl->active_context->origin->receiver;
if (!HCL_IS_INSTANCE(hcl, t)) if (!HCL_IS_INSTANCE(hcl, t))
{ {
hcl_seterrbfmt (hcl, HCL_ESTKUNDFLW, "non-instance receiver"); hcl_seterrbfmt (hcl, HCL_ESTKUNDFLW, "non-instance receiver");
@ -3839,7 +3844,7 @@ HCL_DEBUG2 (hcl, "class_mstore %O %O\n", hcl->active_function->literal_frame[b1]
hcl_oop_class_t t; hcl_oop_class_t t;
FETCH_PARAM_CODE_TO (hcl, b1); FETCH_PARAM_CODE_TO (hcl, b1);
LOG_INST_1 (hcl, "store_into_clsvar_m %zu", b1); LOG_INST_1 (hcl, "store_into_clsvar_m %zu", b1);
t = (hcl_oop_oop_t)hcl->active_context->origin->receiver_or_base; t = (hcl_oop_oop_t)hcl->active_context->origin->receiver;
if (!HCL_IS_INSTANCE(hcl, t)) if (!HCL_IS_INSTANCE(hcl, t))
{ {
hcl_seterrbfmt (hcl, HCL_ESTKUNDFLW, "non-instance receiver"); hcl_seterrbfmt (hcl, HCL_ESTKUNDFLW, "non-instance receiver");
@ -3856,7 +3861,7 @@ HCL_DEBUG2 (hcl, "class_mstore %O %O\n", hcl->active_function->literal_frame[b1]
hcl_oop_class_t t; hcl_oop_class_t t;
FETCH_PARAM_CODE_TO (hcl, b1); FETCH_PARAM_CODE_TO (hcl, b1);
LOG_INST_1 (hcl, "pop_into_clsvar_m %zu", b1); LOG_INST_1 (hcl, "pop_into_clsvar_m %zu", b1);
t = (hcl_oop_oop_t)hcl->active_context->origin->receiver_or_base; t = (hcl_oop_oop_t)hcl->active_context->origin->receiver;
if (!HCL_IS_INSTANCE(hcl, t)) if (!HCL_IS_INSTANCE(hcl, t))
{ {
hcl_seterrbfmt (hcl, HCL_ESTKUNDFLW, "non-instance receiver"); hcl_seterrbfmt (hcl, HCL_ESTKUNDFLW, "non-instance receiver");
@ -3872,7 +3877,7 @@ HCL_DEBUG2 (hcl, "class_mstore %O %O\n", hcl->active_function->literal_frame[b1]
case HCL_CODE_PUSH_RECEIVER: /* push self or super */ case HCL_CODE_PUSH_RECEIVER: /* push self or super */
LOG_INST_0 (hcl, "push_receiver"); LOG_INST_0 (hcl, "push_receiver");
HCL_STACK_PUSH (hcl, hcl->active_context->origin->receiver_or_base); HCL_STACK_PUSH (hcl, hcl->active_context->origin->receiver);
break; break;
case HCL_CODE_PUSH_NIL: case HCL_CODE_PUSH_NIL:
@ -4197,10 +4202,9 @@ HCL_DEBUG2 (hcl, "class_mstore %O %O\n", hcl->active_function->literal_frame[b1]
HCL_STACK_POP (hcl); HCL_STACK_POP (hcl);
goto handle_return; goto handle_return;
/* the current HCL compiler doesn't produce HCL_CODE_RETURN_RECEIVER as the receiver concept is not implemented */
case HCL_CODE_RETURN_RECEIVER: case HCL_CODE_RETURN_RECEIVER:
LOG_INST_0 (hcl, "return_receiver"); LOG_INST_0 (hcl, "return_receiver");
return_value = hcl->active_context->origin->receiver_or_base; return_value = hcl->active_context->origin->receiver;
handle_return: handle_return:
hcl->last_retv = return_value; hcl->last_retv = return_value;
@ -4469,6 +4473,7 @@ hcl_pfrc_t hcl_pf_process_fork (hcl_t* hcl, hcl_mod_t* mod, hcl_ooi_t nargs)
1, /* nargs_offset */ 1, /* nargs_offset */
0, /* number of return variables expected */ 0, /* number of return variables expected */
1, /* copy_args */ 1, /* copy_args */
0, /* is_msgsend */
&newctx); &newctx);
if (HCL_UNLIKELY(x <= -1)) return HCL_PF_FAILURE; if (HCL_UNLIKELY(x <= -1)) return HCL_PF_FAILURE;

10
lib/hcl.h
View File

@ -577,7 +577,7 @@ typedef struct hcl_function_t* hcl_oop_function_t;
typedef struct hcl_block_t hcl_block_t; typedef struct hcl_block_t hcl_block_t;
typedef struct hcl_block_t* hcl_oop_block_t; typedef struct hcl_block_t* hcl_oop_block_t;
#define HCL_CONTEXT_NAMED_INSTVARS 7 #define HCL_CONTEXT_NAMED_INSTVARS 8
typedef struct hcl_context_t hcl_context_t; typedef struct hcl_context_t hcl_context_t;
typedef struct hcl_context_t* hcl_oop_context_t; typedef struct hcl_context_t* hcl_oop_context_t;
@ -624,6 +624,8 @@ struct hcl_context_t
/* SmallInteger, instruction pointer */ /* SmallInteger, instruction pointer */
hcl_oop_t ip; hcl_oop_t ip;
hcl_oop_t base; /* either a block or a function */
/* it points to the active context at the moment when /* it points to the active context at the moment when
* this context object has been activated. a new method context * this context object has been activated. a new method context
* is activated as a result of normal message sending and a block * is activated as a result of normal message sending and a block
@ -634,7 +636,7 @@ struct hcl_context_t
/* it points to the receiver of the message for a method context. /* it points to the receiver of the message for a method context.
* a block context points to a block object and a function context * a block context points to a block object and a function context
* points to a function object */ * points to a function object */
hcl_oop_t receiver_or_base; /* when used as a base, it's either a block or a function */ hcl_oop_t receiver;
/* it is set to nil for a method context. /* it is set to nil for a method context.
* for a block context, it points to the active context at the * for a block context, it points to the active context at the
@ -647,13 +649,13 @@ struct hcl_context_t
* context creation is based on a function object(initial or lambda/defun). * context creation is based on a function object(initial or lambda/defun).
* *
* a block context is created over a block object. it stores * a block context is created over a block object. it stores
* a function context points to itself in this field. a block context * a function context that points to itself in this field. a block context
* points to the function context where it is created. another block context * points to the function context where it is created. another block context
* created within the block context also points to the same function context. * created within the block context also points to the same function context.
* *
* take note of the following points: * take note of the following points:
* ctx->origin: function context * ctx->origin: function context
* ctx->origin->receiver_or_base: actual function containing byte codes pertaining to ctx. * ctx->origin->base: actual function containing byte codes pertaining to ctx.
* *
* a base of a block context is a block object but ctx->origin is guaranteed to be * a base of a block context is a block object but ctx->origin is guaranteed to be
* a function context. so its base is also a function object all the time. * a function context. so its base is also a function object all the time.

4
lib/obj.c
View File

@ -427,8 +427,8 @@ hcl_oop_t hcl_instantiate (hcl_t* hcl, hcl_oop_class_t _class, const void* vptr,
function and initialize payloads then. function and initialize payloads then.
if (oop && vptr && vlen > 0) if (oop && vptr && vlen > 0)
{ {
hcl_oop_oop_t hdr = (hcl_oop_oop_t)oop; hcl_oop_oop_t hdr = (hcl_oop_oop_t)oop;
HCL_MEMCPY (&hdr->slot[named_instvar], vptr, vlen * HCL_SIZEOF(hcl_oop_t)); HCL_MEMCPY (&hdr->slot[named_instvar], vptr, vlen * HCL_SIZEOF(hcl_oop_t));
} }
For the above code to work, it should protect the elements of For the above code to work, it should protect the elements of

2
lib/prim.c
View File

@ -878,7 +878,7 @@ static hcl_pfrc_t pf_object_new (hcl_t* hcl, hcl_mod_t* mod, hcl_ooi_t nargs)
return HCL_PF_FAILURE; return HCL_PF_FAILURE;
} }
obj = hcl_instantiate(hcl, class_, HCL_NULL, 0); obj = hcl_instantiate(hcl, (hcl_oop_class_t)class_, HCL_NULL, 0);
if (HCL_UNLIKELY(!obj)) return HCL_PF_FAILURE; if (HCL_UNLIKELY(!obj)) return HCL_PF_FAILURE;
HCL_STACK_SETRET (hcl, nargs, obj); HCL_STACK_SETRET (hcl, nargs, obj);