mirror of https://github.com/lua/lua
Bug: overlapping assignments
ISO C forbids assignment of a union field to another field of the same union.
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parent
bb7bb5944c
commit
d51022bf9e
6
lcode.c
6
lcode.c
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@ -776,7 +776,8 @@ void luaK_dischargevars (FuncState *fs, expdesc *e) {
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break;
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}
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case VLOCAL: { /* already in a register */
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e->u.info = e->u.var.ridx;
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int temp = e->u.var.ridx;
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e->u.info = temp; /* (can't do a direct assignment; values overlap) */
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e->k = VNONRELOC; /* becomes a non-relocatable value */
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break;
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}
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@ -1283,8 +1284,9 @@ void luaK_indexed (FuncState *fs, expdesc *t, expdesc *k) {
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if (t->k == VUPVAL && !isKstr(fs, k)) /* upvalue indexed by non 'Kstr'? */
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luaK_exp2anyreg(fs, t); /* put it in a register */
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if (t->k == VUPVAL) {
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int temp = t->u.info; /* upvalue index */
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lua_assert(isKstr(fs, k));
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t->u.ind.t = t->u.info; /* upvalue index */
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t->u.ind.t = temp; /* (can't do a direct assignment; values overlap) */
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t->u.ind.idx = k->u.info; /* literal short string */
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t->k = VINDEXUP;
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}
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