/** \brief Add end marker to bytecode.
\throw nothrow
*/
void ParserByteCode::Finalize()
{
SToken tok;
tok.Cmd = cmEND;
m_vRPN.push_back(tok);
rpn_type(m_vRPN).swap(m_vRPN); // shrink bytecode vector to fit
// Determine the if-then-else jump offsets
ParserStack<int> stIf, stElse;
int idx;
for (int i=0; i<(int)m_vRPN.size(); ++i)
{
switch(m_vRPN[i].Cmd)
{
case cmIF:
stIf.push(i);
break;
case cmELSE:
stElse.push(i);
idx = stIf.pop();
m_vRPN[idx].Oprt.offset = i - idx;
break;
case cmENDIF:
idx = stElse.pop();
m_vRPN[idx].Oprt.offset = i - idx;
break;
default:
break;
}
}
}
/** \brief Add end marker to bytecode.
\throw nothrow
*/
void ReversePolishNotation::Finalize()
{
SPackedToken tok;
memset(&tok, 0, sizeof(SPackedToken));
tok.m_eCode = cmEND;
m_vRPN.push_back(tok);
rpn_type(m_vRPN).swap(m_vRPN);
// Determine the if-then-else jump offsets
Stack<int> stIf, stElse;
int idx;
for (std::size_t i=0; i<m_vRPN.size(); ++i)
{
switch(m_vRPN[i].m_eCode)
{
case cmIF:
stIf.push(i);
break;
case cmELSE:
stElse.push(i);
idx = stIf.pop();
m_vRPN[idx].Jmp.offset = i - idx;
break;
case cmENDIF:
idx = stElse.pop();
m_vRPN[idx].Jmp.offset = i - idx;
break;
}
}
}