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diff -up lua-5.3.3/src/lparser.c.crashfix lua-5.3.3/src/lparser.c
--- lua-5.3.3/src/lparser.c.crashfix 2016-07-25 16:00:14.206121141 -0400
+++ lua-5.3.3/src/lparser.c 2016-07-25 16:00:51.910865872 -0400
@@ -323,6 +323,8 @@ static void adjust_assign (LexState *ls,
luaK_nil(fs, reg, extra);
}
}
+ if (nexps > nvars)
+ ls->fs->freereg -= nexps - nvars; /* remove extra values */
}
@@ -1160,11 +1162,8 @@ static void assignment (LexState *ls, st
int nexps;
checknext(ls, '=');
nexps = explist(ls, &e);
- if (nexps != nvars) {
+ if (nexps != nvars)
adjust_assign(ls, nvars, nexps, &e);
- if (nexps > nvars)
- ls->fs->freereg -= nexps - nvars; /* remove extra values */
- }
else {
luaK_setoneret(ls->fs, &e); /* close last expression */
luaK_storevar(ls->fs, &lh->v, &e);
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