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Fix out-of-scope goto handling in parser.

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Many thanks to Demetrios Obenour for tracking down this long-standing bug.
This commit is contained in:
Mike Pall 2017-03-08 22:16:43 +01:00
parent 3ab9f5a18d
commit ff648369aa
1 changed files with 6 additions and 4 deletions
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10
src/lj_parse.c
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@ -1280,12 +1280,14 @@ static void fscope_end(FuncState *fs)
MSize idx = gola_new(ls, NAME_BREAK, VSTACK_LABEL, fs->pc);
ls->vtop = idx; /* Drop break label immediately. */
gola_resolve(ls, bl, idx);
} else { /* Need the fixup step to propagate the breaks. */
gola_fixup(ls, bl);
return;
} /* else: need the fixup step to propagate the breaks. */
} else if (!(bl->flags & FSCOPE_GOLA)) {
return;
}
}
if ((bl->flags & FSCOPE_GOLA)) {
gola_fixup(ls, bl);
}
gola_fixup(ls, bl);
}
/* Mark scope as having an upvalue. */