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-rw-r--r--include/mruby/opcode.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/mruby/opcode.h b/include/mruby/opcode.h
index 3d4544817..9a5116275 100644
--- a/include/mruby/opcode.h
+++ b/include/mruby/opcode.h
@@ -82,7 +82,8 @@ enum {
OP_JMPIF,/* A sBx if R(A) pc+=sBx */
OP_JMPNOT,/* A sBx if !R(A) pc+=sBx */
OP_ONERR,/* sBx rescue_push(pc+sBx) */
- OP_RESCUE,/* A B R(A) := exc; R(B) := matched (ignore if A/B=0) */
+ OP_RESCUE,/* A B C if A (if C exc=R(A) else R(A) := exc);
+ if B R(B) := exc.isa?(R(B)); clear(exc) */
OP_POPERR,/* A A.times{rescue_pop()} */
OP_RAISE,/* A raise(R(A)) */
OP_EPUSH,/* Bx ensure_push(SEQ[Bx]) */