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Extended OP_EXCEPT and OP_RAISE (OP_RAISEIF) instructions

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- `OP_EXCEPT` checks if `mrb->exc` is `NULL`, `MRB_TT_EXCEPTION` or
  `MRB_TT_BREAK`.
  If `mrb->exc` is `NULL`, it will be replaced with `nil`.

- If `OP_RAISE` is `nil`, it does nothing and the immediately
  following instruction is executed (like `OP_NOP`).
  Also, in case of `RBreak` object, it moves to the processing for
  `break`.
  With this change, the instruction name is changed from
  `OP_RAISE` to `OP_RAISEIF`.
This commit is contained in:
dearblue
2020-05-24 11:44:31 +09:00
committed by Yukihiro "Matz" Matsumoto
parent a54a3df32c
commit f467b02d45
5 changed files with 34 additions and 10 deletions
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include/mruby/ops.h
+1 -1
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@@ -53,7 +53,7 @@ OPCODE(ONERR, S) /* rescue_push(a) */
OPCODE(EXCEPT, B) /* R(a) = exc */
OPCODE(RESCUE, BB) /* R(b) = R(a).isa?(R(b)) */
OPCODE(POPERR, B) /* a.times{rescue_pop()} */
OPCODE(RAISE, B) /* raise(R(a)) */
OPCODE(RAISEIF, B) /* raise(R(a)) if R(a) */
OPCODE(EPUSH, B) /* ensure_push(SEQ[a]) */
OPCODE(EPOP, B) /* A.times{ensure_pop().call} */
OPCODE(SENDV, BB) /* R(a) = call(R(a),Syms(b),*R(a+1)) */