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authorRoberto Ierusalimschy <roberto@inf.puc-rio.br>2019-07-25 13:55:29 -0300
committerRoberto Ierusalimschy <roberto@inf.puc-rio.br>2019-07-25 13:55:29 -0300
commit9a37dc0ce64c51fd57f5e658a5af8f3671a26b0a (patch)
tree32d5d49d87ea9124c8209803d1ac78c94ec7a881 /lparser.c
parent0eb6aa4013051c8c0148c09d8c85ee7cbdc96f42 (diff)
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Small corrections when setting 'L->top'
- OP_NEWTABLE can use 'ra + 1' to set top (instead of ci->top); - OP_CLOSE doesn't need to set top ('Protect' already does that); - OP_TFORCALL must use 'ProtectNT', to preserve the top already set. (That was a small bug, because iterators could be called with extra parameters besides the state and the control variable.) - Comments and an extra test for the bug in previous item.
Diffstat (limited to 'lparser.c')
-rw-r--r--lparser.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/lparser.c b/lparser.c
index b70c609e..7447222b 100644
--- a/lparser.c
+++ b/lparser.c
@@ -694,9 +694,10 @@ static Proto *addprototype (LexState *ls) {
694 694
695/* 695/*
696** codes instruction to create new closure in parent function. 696** codes instruction to create new closure in parent function.
697** The OP_CLOSURE instruction must use the last available register, 697** The OP_CLOSURE instruction uses the last available register,
698** so that, if it invokes the GC, the GC knows which registers 698** so that, if it invokes the GC, the GC knows which registers
699** are in use at that time. 699** are in use at that time.
700
700*/ 701*/
701static void codeclosure (LexState *ls, expdesc *v) { 702static void codeclosure (LexState *ls, expdesc *v) {
702 FuncState *fs = ls->fs->prev; 703 FuncState *fs = ls->fs->prev;