private bool PopInterpolatedStringItem(InterpolatedStringStackItem item)
{
if (myInterpolatedStringStates.IsEmpty || !(myInterpolatedStringStates.Peek() is var state))
{
return(false);
}
if (state.InterpolatedStringStack.IsEmpty && item == InterpolatedStringStackItem.Brace)
{
yypushback(1);
yybegin(ToState(myInterpolatedStringStates.Peek()));
Clear();
return(true);
}
if (state.InterpolatedStringStack.Peek() == item)
{
state.InterpolatedStringStack = state.InterpolatedStringStack.Pop();
myInterpolatedStringStates = myInterpolatedStringStates.Pop();
myInterpolatedStringStates = myInterpolatedStringStates.Push(state);
}
return(false);
}
private void PushInterpolatedStringItem(InterpolatedStringStackItem item)
{
if (!myInterpolatedStringStates.IsEmpty && myInterpolatedStringStates.Peek() is var state)
{
myInterpolatedStringStates = myInterpolatedStringStates.Pop();
state.InterpolatedStringStack = state.InterpolatedStringStack.Push(item);
myInterpolatedStringStates = myInterpolatedStringStates.Push(state);
}
}