/// <summary>
/// Visit a parse tree produced by <see cref="Generated.Z80AsmParser.multExpr"/>.
/// </summary>
/// <param name="context">The parse tree.</param>
/// <return>The visitor result.</return>
public override object VisitMultExpr(Z80AsmParser.MultExprContext context)
{
if (IsInvalidContext(context))
{
return(null);
}
var expr = (ExpressionNode)VisitUnaryExpr(context.GetChild(0) as Z80AsmParser.UnaryExprContext);
var nextChildIndex = 2;
while (nextChildIndex < context.ChildCount)
{
var rightExpr = VisitUnaryExpr(context.GetChild(nextChildIndex)
as Z80AsmParser.UnaryExprContext);
var opToken = context.GetChild(nextChildIndex - 1).NormalizeToken();
var multExpr = opToken == "*"
? new MultiplyOperationNode()
: (opToken == "/"
? new DivideOperationNode()
: new ModuloOperationNode() as BinaryOperationNode);
multExpr.LeftOperand = expr;
multExpr.RightOperand = (ExpressionNode)rightExpr;
expr = multExpr;
nextChildIndex += 2;
}
return(expr);
}
public override object VisitMultExpr(Z80AsmParser.MultExprContext context)
{
if (context == null)
{
return(null);
}
var subExprs = context.minMaxExpr();
var expr = VisitMinMaxExpr(subExprs[0]);
var opIndex = 1;
for (var i = 1; i < subExprs.Length; i++)
{
var rightExpr = VisitMinMaxExpr(subExprs[i]);
var opToken = context.GetChild(opIndex).GetText();
BinaryOperationNode mulExpr;
switch (opToken)
{
case "*":
mulExpr = new MultiplyOperationNode(expr, rightExpr);
break;
case "/":
mulExpr = new DivideOperationNode(expr, rightExpr);
break;
default: // %
mulExpr = new ModuloOperationNode(expr, rightExpr);
break;
}
expr = mulExpr;
opIndex += 2;
}
return(expr);
}
public ModuloOperationNode(Z80AsmParser.MultExprContext context, Z80AsmVisitor visitor)
: base(context, context.expr()[0], context.expr()[1], visitor)
{
}
/// <summary>
/// Visit a parse tree produced by <see cref="Z80AsmParser.multExpr"/>.
/// <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 VisitMultExpr([NotNull] Z80AsmParser.MultExprContext context)
{
return(VisitChildren(context));
}
/// <summary>
/// Exit a parse tree produced by <see cref="Z80AsmParser.multExpr"/>.
/// <para>The default implementation does nothing.</para>
/// </summary>
/// <param name="context">The parse tree.</param>
public virtual void ExitMultExpr([NotNull] Z80AsmParser.MultExprContext context)
{
}
