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added the try_catch instruction

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This commit is contained in:
hyung-hwan 2021-02-22 14:56:27 +00:00
parent 05d7b73bdb
commit e61602082d
4 changed files with 42 additions and 10 deletions
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8
lib/comp.c
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@ -1885,6 +1885,7 @@ static HCL_INLINE int compile_catch (hcl_t* hcl)
patch_nearest_post_try (hcl);
/* TODO: HCL_TRAIT_INTERACTIVE??? */
/* TODO: nargs -> 1 ntmprs -> 1 */
if (emit_double_param_instruction(hcl, HCL_CODE_MAKE_BLOCK, 0, 0, HCL_CNODE_GET_LOC(cmd)) <= -1) return -1;
jump_inst_pos = hcl->code.bc.len;
@ -1941,12 +1942,7 @@ static HCL_INLINE int post_catch (hcl_t* hcl)
}
patch_long_jump (hcl, jip, block_code_size);
#if 0
/* beginning of the elif/else block code */
/* to drop the result of the conditional when the conditional is false */
if (emit_byte_instruction (hcl, HCL_CODE_POP_STACKTOP, HCL_CNODE_GET_LOC(cf->operand)) <= -1) return -1;
#endif
/* TODO: activate two blocks with special frame arrangement..EMIT_CALL for try...catch... with 2 args???*/
if (emit_byte_instruction(hcl, HCL_CODE_TRY_CATCH, HCL_CNODE_GET_LOC(cf->operand)) <= -1) return -1;
hcl->c->blk.depth--;
POP_CFRAME (hcl);

5
lib/decode.c
View File

@ -348,7 +348,10 @@ int hcl_decode (hcl_t* hcl, hcl_oow_t start, hcl_oow_t end)
handle_call:
LOG_INST_1 (hcl, "call %zu", b1);
break;
/* -------------------------------------------------------- */
case HCL_CODE_TRY_CATCH:
LOG_INST_0 (hcl, "try_catch");
break;
/* -------------------------------------------------------- */
case HCL_CODE_PUSH_CTXTEMPVAR_X:

36
lib/exec.c
View File

@ -1905,9 +1905,32 @@ static HCL_INLINE int call_primitive (hcl_t* hcl, hcl_ooi_t nargs)
return -1;
}
return ((hcl_pfimpl_t)rcv->impl) (hcl, (hcl_mod_t*)rcv->mod, nargs);
return ((hcl_pfimpl_t)rcv->impl)(hcl, (hcl_mod_t*)rcv->mod, nargs);
}
/* ------------------------------------------------------------------------- */
static HCL_INLINE int call_try_catch (hcl_t* hcl)
{
int x;
hcl_oop_block_t rcv;
hcl_oop_context_t newctx;
hcl_ooi_t nargs = 1;
rcv = (hcl_oop_block_t)HCL_STACK_GETRCV(hcl, nargs);
HCL_ASSERT (hcl, HCL_IS_BLOCK(hcl, rcv));
/* TODO: make this block a try catch block */
x = prepare_new_block(hcl, rcv, 0, 0, &newctx);
if (HCL_UNLIKELY(x <= -1)) return -1;
HCL_STACK_POPS (hcl, nargs + 1); /* pop arguments and receiver */
newctx->sender = hcl->active_context;
SWITCH_ACTIVE_CONTEXT (hcl, newctx);
return 0;
}
/* ------------------------------------------------------------------------- */
#if 0
@ -3005,7 +3028,16 @@ static int execute (hcl_t* hcl)
}
break;
}
/* -------------------------------------------------------- */
case HCL_CODE_TRY_CATCH:
LOG_INST_0 (hcl, "try_catch");
if (call_try_catch(hcl) <= -1)
{
supplement_errmsg (hcl, fetched_instruction_pointer);
goto oops;
}
break;
/* -------------------------------------------------------- */
case HCL_CODE_PUSH_CTXTEMPVAR_X:

3
lib/hcl-prv.h
View File

@ -752,7 +752,8 @@ enum hcl_bcode_t
HCL_CODE_JUMP2_BACKWARD_IF_FALSE = 0xD3, /* 211 */
HCL_CODE_CALL_X = 0xD4, /* 212 */
/* UNUSED - 0xD5 - 0xD7 */
HCL_CODE_TRY_CATCH = 0xD5, /* 213 */
/* UNUSED - 0xD6 - 0xD7 */
HCL_CODE_STORE_INTO_CTXTEMPVAR_X = 0xD8, /* 216 ## */
/* UNUSED - 0xD9 - 0xDB */