public void SetupExpr(Expression expr, bool eat)
{
if (Error)
{
return;
}
if (eat)
{
Eat();
}
expr.Position = CurToken.Position;
expr.CurScope = CurScope;
ParsePostfix();
if (Error)
{
return;
}
while (CurPostfixStack.Count > 0)
{
var postfix = CurPostfixStack.Dequeue();
postfix.Child = expr;
expr = postfix;
}
while (CurPrefixStack.Count > 0)
{
var prefix = CurPrefixStack.Dequeue();
prefix.Child = expr;
expr = prefix;
}
CurExprStack.Enqueue(expr);
ExpectPrefix = false;
if (CurExprStack.Count != CurBinaryStack.Count + 1)
{
ReportError("Missing operator");
}
}
public void ParsePostfix()
{
while (Peek(TokenKind.SQUARE_START))
{
var args = ParseList();
if (Error)
{
return;
}
var op = new Call(args, CurScope);
if (Error)
{
return;
}
op.Position = CurToken.Position;
op.CurScope = CurScope;
CurPostfixStack.Enqueue(op);
}
}