public XppAstExpr Parse()
{
while (true)
{
XppToken token = lexer.NextToken();
if (token.TokenType == XppTokenType.EOF)
{
if (nodeStack.Count == 1)
{
XppAstExpr expr = Pop().Node as XppAstExpr;
if (expr != null)
{
return(expr);
}
}
Debug.Fail("Parse error, reached EOF in an invalid state. Use a debugger to see what's left on the stack.");
throw new ArgumentException(
"Parse error, reached EOF in an invalid state. Use a debugger to see what's left on the stack.");
}
Push(new XppParserSymbol(token.TokenType, token.Value, null));
EvaluateStack();
}
}
public XppCompositeExpr(bool or, XppAstExpr left, XppAstExpr right)
{
_or = or;
_left = left;
_right = right;
}
public XppCompositeExpr(bool or, XppAstExpr left, XppAstExpr right)
{
_or = or;
_left = left;
_right = right;
}
public XppAstNotExpr(XppAstExpr expr)
{
this.expr = expr;
}
public XppAstNotExpr(XppAstExpr expr)
{
this.expr = expr;
}