/// <summary>
/// Visit a parse tree produced by <see cref="Generated.Z80TestParser.addExpr"/>.
/// </summary>
/// <param name="context">The parse tree.</param>
/// <return>The visitor result.</return>
public override object VisitAddExpr(Z80TestParser.AddExprContext context)
{
if (IsInvalidContext(context))
{
return(null);
}
var expr = (ExpressionNode)VisitMultExpr(context.multExpr()[0]);
var opIndex = 1;
for (var i = 1; i < context.multExpr().Length; i++)
{
var rightExpr = VisitMultExpr(context.multExpr()[i]);
var opToken = context.GetTokenText(opIndex);
var addExpr = opToken == "+"
? new AddOperationNode(context)
: new SubtractOperationNode(context) as BinaryOperationNode;
addExpr.LeftOperand = expr;
addExpr.RightOperand = (ExpressionNode)rightExpr;
expr = addExpr;
opIndex += 2;
}
return(expr);
}
/// <summary>
/// Exit a parse tree produced by <see cref="Z80TestParser.addExpr"/>.
/// <para>The default implementation does nothing.</para>
/// </summary>
/// <param name="context">The parse tree.</param>
public virtual void ExitAddExpr([NotNull] Z80TestParser.AddExprContext context)
{
}
/// <summary>
/// Visit a parse tree produced by <see cref="Z80TestParser.addExpr"/>.
/// <para>
/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
/// on <paramref name="context"/>.
/// </para>
/// </summary>
/// <param name="context">The parse tree.</param>
/// <return>The visitor result.</return>
public virtual Result VisitAddExpr([NotNull] Z80TestParser.AddExprContext context)
{
return(VisitChildren(context));
}