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implementing instance variable access with regards to inheritance

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hyung-hwan 2022-02-06 16:06:48 +00:00
parent eac89bff5c
commit ef24bf68df
4 changed files with 45 additions and 19 deletions
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3
lib/comp.c
View File

@ -2066,11 +2066,12 @@ static int compile_class (hcl_t* hcl, hcl_cnode_t* src)
cf = GET_SUBCFRAME(hcl);
cf->u._class.nsuperclasses = 0; /* unsed for CLASS_P2 */
cf->u._class.start_loc = *HCL_CNODE_GET_LOC(src); /* TODO: use *HCL_CNODE_GET_LOC(cmd) instead? */
obj = HCL_CNODE_CONS_CDR(obj);
PUSH_SUBCFRAME (hcl, COP_COMPILE_CLASS_P1, obj); /* 2 - variables declaraions and actual body */
cf = GET_SUBCFRAME(hcl);
cf->u._class.nsuperclasses = 1; /* this one needs to change if we support multiple superclasses... */
cf->u._class.start_loc = *HCL_CNODE_GET_LOC(src); /* TODO: use *HCL_CNODE_GET_LOC(cmd) instead? */
}
else
{

43
lib/exec.c
View File

@ -1899,7 +1899,7 @@ void hcl_releaseiohandle (hcl_t* hcl, hcl_ooi_t io_handle)
/* ------------------------------------------------------------------------- */
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)
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_ooi_t msg_instoff, hcl_oop_context_t* pnewctx)
{
/* prepare a new block context for activation.
* the passed block context becomes the base for a new block context. */
@ -1962,11 +1962,13 @@ static int prepare_new_context (hcl_t* hcl, hcl_oop_block_t op_blk, hcl_ooi_t na
{
blkctx->home = blkctx; /* itself */
blkctx->receiver = HCL_STACK_GETRCV(hcl, nargs);
blkctx->instoff = HCL_SMOOI_TO_OOP(msg_instoff);
}
else
{
blkctx->home = op_blk->home;
blkctx->receiver = op_blk->home->receiver;
blkctx->instoff = HCL_SMOOI_TO_OOP(0); /* not useful if it's not message send */
}
#endif
@ -1994,7 +1996,7 @@ static int prepare_new_context (hcl_t* hcl, hcl_oop_block_t op_blk, hcl_ooi_t na
return 0;
}
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)
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_t msg_instoff, hcl_oop_context_t* pnewctx)
{
int x;
@ -2008,6 +2010,7 @@ static HCL_INLINE int __activate_block (hcl_t* hcl, hcl_oop_block_t op, hcl_ooi_
nrvars,
1, /* copy_args */
is_msgsend,
msg_instoff,
pnewctx);
if (HCL_UNLIKELY(x <= -1)) return -1;
@ -2026,7 +2029,7 @@ 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);
HCL_ASSERT (hcl, HCL_IS_BLOCK(hcl, op));
x = __activate_block(hcl, op, nargs, nrvars, 0, &newctx);
x = __activate_block(hcl, op, nargs, nrvars, 0, 0, &newctx);
if (HCL_UNLIKELY(x <= -1)) return -1;
SWITCH_ACTIVE_CONTEXT (hcl, newctx);
@ -2145,7 +2148,7 @@ static HCL_INLINE int call_primitive (hcl_t* hcl, hcl_ooi_t nargs)
/* ------------------------------------------------------------------------- */
static hcl_oop_block_t find_method_noseterr (hcl_t* hcl, hcl_oop_class_t class_, hcl_oop_t op)
static hcl_oop_block_t find_method_noseterr (hcl_t* hcl, hcl_oop_class_t class_, hcl_oop_t op, hcl_ooi_t* instoff)
{
hcl_oocs_t name;
@ -2172,7 +2175,8 @@ static hcl_oop_block_t find_method_noseterr (hcl_t* hcl, hcl_oop_class_t class_,
val = HCL_CONS_CDR(ass);
if (HCL_IS_BLOCK(hcl, val))
{
/* TODO: futher check if it's a method */
/* TODO: futher check if it's a method block? */
*instoff = HCL_OOP_TO_SMOOI(class_->nivars_super);
return (hcl_oop_block_t)val;
}
}
@ -2184,24 +2188,27 @@ static hcl_oop_block_t find_method_noseterr (hcl_t* hcl, hcl_oop_class_t class_,
return HCL_NULL;
}
static HCL_INLINE int send_message (hcl_t* hcl, hcl_oop_t rcv, hcl_oop_t op, int to_super, hcl_ooi_t nargs)
static HCL_INLINE int send_message (hcl_t* hcl, hcl_oop_t rcv, hcl_oop_t msg, int to_super, hcl_ooi_t nargs)
{
hcl_oop_block_t mth;
hcl_oop_context_t newctx;
hcl_ooi_t instoff;
int x;
HCL_ASSERT (hcl, HCL_IS_INSTANCE(hcl, rcv));
HCL_ASSERT (hcl, HCL_IS_SYMBOL(hcl, op));
HCL_ASSERT (hcl, HCL_IS_SYMBOL(hcl, msg));
/* TODO: implement method cache */
HCL_ASSERT (hcl, HCL_IS_CLASS(hcl, rcv->_class));
mth = find_method_noseterr(hcl, (hcl_oop_class_t)rcv->_class, op);
mth = find_method_noseterr(hcl, (hcl_oop_class_t)rcv->_class, msg, &instoff);
if (!mth)
{
hcl_seterrbfmt (hcl, HCL_ENOENT, "'%.*js' not found in the %O", HCL_OBJ_GET_SIZE(op), HCL_OBJ_GET_CHAR_SLOT(op), rcv->_class);
hcl_seterrbfmt (hcl, HCL_ENOENT, "'%.*js' not found in the %O", HCL_OBJ_GET_SIZE(msg), HCL_OBJ_GET_CHAR_SLOT(msg), rcv->_class);
return -1;
}
x = __activate_block(hcl, mth, nargs, 0 /* TODO: not 0 */, 1 , &newctx);
x = __activate_block(hcl, mth, nargs, 0 /* TODO: not always 0, support nrvars */, 1, instoff, &newctx);
if (HCL_UNLIKELY(x <= -1)) return -1;
SWITCH_ACTIVE_CONTEXT (hcl, newctx);
@ -3052,6 +3059,8 @@ static int execute (hcl_t* hcl)
HCL_ASSERT (hcl, HCL_OBJ_GET_FLAGS_TYPE(hcl->active_context->receiver) == HCL_OBJ_TYPE_OOP);
/* TODO: FIX TO OFFSET THE INHERTED PART... */
//HCL_STACK_PUSH (hcl, ((hcl_oop_oop_t)hcl->active_context->origin->receiver)->slot[b1]);
b1 += HCL_OOP_TO_SMOOI(hcl->active_context->home->instoff);
HCL_DEBUG2 (hcl, "+++++ %O %zu\n", hcl->active_context->home->instoff, b1);
HCL_STACK_PUSH (hcl, ((hcl_oop_oop_t)hcl->active_context->receiver)->slot[b1]);
break;
@ -3073,6 +3082,8 @@ static int execute (hcl_t* hcl)
LOG_INST_1 (hcl, "store_into_instvar %zu", b1);
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)->slot[b1] = HCL_STACK_GETTOP(hcl);
b1 += HCL_OOP_TO_SMOOI(hcl->active_context->home->instoff);
HCL_DEBUG2 (hcl, "@@@@@ %O %zu\n", hcl->active_context->home->instoff, b1);
((hcl_oop_oop_t)hcl->active_context->receiver)->slot[b1] = HCL_STACK_GETTOP(hcl);
break;
@ -3092,7 +3103,10 @@ static int execute (hcl_t* hcl)
pop_into_instvar:
LOG_INST_1 (hcl, "pop_into_instvar %zu", b1);
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)->slot[b1] = HCL_STACK_GETTOP(hcl);
b1 += HCL_OOP_TO_SMOOI(hcl->active_context->home->instoff);
HCL_DEBUG2 (hcl, "~~~~~ %O %zu\n", hcl->active_context->home->instoff, b1);
((hcl_oop_oop_t)hcl->active_context->receiver)->slot[b1] = HCL_STACK_GETTOP(hcl);
HCL_STACK_POP (hcl);
break;
@ -3514,7 +3528,7 @@ if (do_throw(hcl, hcl->_nil, fetched_instruction_pointer) <= -1)
*/
hcl_oop_t t, sc, ivars_str, cvars_str;
hcl_oow_t b3;
FETCH_PARAM_CODE_TO (hcl, b1); /* nsuperclasses */
FETCH_PARAM_CODE_TO (hcl, b2); /* nivars */
FETCH_PARAM_CODE_TO (hcl, b3); /* ncvars */
@ -3541,6 +3555,7 @@ if (do_throw(hcl, hcl->_nil, fetched_instruction_pointer) <= -1)
if (!HCL_IS_CLASS(hcl, sc))
{
hcl_seterrbfmt (hcl, HCL_ECALL, "invalid superclass %O", sc);
if (do_throw_with_internal_errmsg(hcl, fetched_instruction_pointer) >= 0) break;
goto oops_with_errmsg_supplement;
}
}
@ -3554,10 +3569,6 @@ if (do_throw(hcl, hcl->_nil, fetched_instruction_pointer) <= -1)
break;
}
/*case HCL_CODE_MAKE_METHOD:
{
}*/
case HCL_CODE_CLASS_EXIT:
{
LOG_INST_0 (hcl, "class_exit");
@ -3613,7 +3624,6 @@ if (do_throw(hcl, hcl->_nil, fetched_instruction_pointer) <= -1)
((hcl_oop_class_t)class_)->memdic = dic;
}
HCL_DEBUG2 (hcl, "class_mstore %O %O\n", hcl->active_function->literal_frame[b1], HCL_STACK_GETTOP(hcl));
if (!hcl_putatdic(hcl, dic, hcl->active_function->literal_frame[b1], HCL_STACK_GETTOP(hcl))) goto oops_with_errmsg_supplement;
break;
}
@ -4508,6 +4518,7 @@ hcl_pfrc_t hcl_pf_process_fork (hcl_t* hcl, hcl_mod_t* mod, hcl_ooi_t nargs)
0, /* number of return variables expected */
1, /* copy_args */
0, /* is_msgsend */
0, /* msg_instoff */
&newctx);
if (HCL_UNLIKELY(x <= -1)) return HCL_PF_FAILURE;

7
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_oop_block_t;
#define HCL_CONTEXT_NAMED_INSTVARS 8
#define HCL_CONTEXT_NAMED_INSTVARS 9
typedef struct hcl_context_t hcl_context_t;
typedef struct hcl_context_t* hcl_oop_context_t;
@ -670,6 +670,8 @@ struct hcl_context_t
hcl_oop_context_t home; /* context or nil */
hcl_oop_t instoff;
/* variable indexed part */
hcl_oop_t slot[1]; /* arguments, return variables, local variables, other arguments, etc */
};
@ -850,7 +852,7 @@ struct hcl_process_scheduler_t
};
#define HCL_CLASS_NAMED_INSTVARS 6
#define HCL_CLASS_NAMED_INSTVARS 7
typedef struct hcl_class_t hcl_class_t;
typedef struct hcl_class_t* hcl_oop_class_t;
struct hcl_class_t
@ -862,6 +864,7 @@ struct hcl_class_t
hcl_oop_t superclass;
hcl_oop_t nivars; /* smooi. */
hcl_oop_t ncvars; /* smooi. */
hcl_oop_t nivars_super; /* smooi */
hcl_oop_char_t ivarnames;
hcl_oop_char_t cvarnames;

11
lib/obj.c
View File

@ -368,6 +368,17 @@ hcl_oop_t hcl_makeclass (hcl_t* hcl, hcl_oop_t superclass, hcl_ooi_t nivars, hcl
c->nivars = HCL_SMOOI_TO_OOP(nivars);
c->ncvars = HCL_SMOOI_TO_OOP(ncvars);
if ((hcl_oop_t)superclass != hcl->_nil)
{
hcl_ooi_t nivars_super;
nivars_super = HCL_OOP_TO_SMOOI(((hcl_oop_class_t)superclass)->nivars_super) + HCL_OOP_TO_SMOOI(((hcl_oop_class_t)superclass)->nivars);
c->nivars_super = HCL_SMOOI_TO_OOP(nivars_super);
}
else
{
c->nivars_super = HCL_SMOOI_TO_OOP(0);
}
return (hcl_oop_t)c;
}