/// <summary>
/// Equivalent to <code>luaK_exp2val</code>. </summary>
internal void kExp2val(Expdesc e)
{
if (e.hasjumps())
{
kExp2anyreg(e);
}
else
{
kDischargevars(e);
}
}
/// <summary>
/// Equivalent to luaK_exp2anyreg. </summary>
internal int kExp2anyreg(Expdesc e)
{
kDischargevars(e);
if (e.k == Expdesc.VNONRELOC)
{
if (!e.hasjumps())
{
return(e.info_Renamed);
}
if (e.info_Renamed >= nactvar) // reg is not a local?
{
exp2reg(e, e.info_Renamed); // put value on it
return(e.info_Renamed);
}
}
kExp2nextreg(e); // default
return(e.info_Renamed);
}
private void exp2reg(Expdesc e, int reg)
{
discharge2reg(e, reg);
if (e.k == Expdesc.VJMP)
{
e.t = kConcat(e.t, e.info_Renamed); // put this jump in `t' list
}
if (e.hasjumps())
{
int p_f = NO_JUMP; // position of an eventual LOAD false
int p_t = NO_JUMP; // position of an eventual LOAD true
if (need_value(e.t) || need_value(e.f))
{
int fj = (e.k == Expdesc.VJMP) ? NO_JUMP : kJump();
p_f = code_label(reg, 0, 1);
p_t = code_label(reg, 1, 0);
kPatchtohere(fj);
}
int finalpos = kGetlabel(); // position after whole expression
patchlistaux(e.f, finalpos, reg, p_f);
patchlistaux(e.t, finalpos, reg, p_t);
}
e.init(Expdesc.VNONRELOC, reg);
}