public override ASTNode VisitCase([NotNull] CoolParser.CaseContext context)
{
CaseNode node = new CaseNode(context)
{
ExpressionCase = Visit(context.expression(0)) as ExpressionNode
};
var formals = context.formal().Select(x => Visit(x)).ToList();
var expressions = context.expression().Skip(1).Select(x => Visit(x)).ToList();
for (int i = 0; i < formals.Count; ++i)
{
node.Branches.Add((formals[i] as FormalNode, expressions[i] as ExpressionNode));
}
return(node);
}
public override ASTNode VisitCase([NotNull] CoolParser.CaseContext context)
{
var caseNode = new CaseNode(context.Start.Line, context.Start.Column)
{
Cases = new List <AttributeNode>()
};
caseNode.Sentence = Visit(context.expr(0)) as ExpressionNode;
var formals = (from f in context.formal() select Visit(f) as FormalNode).ToList();
var dexprs = (from de in context.expr().Skip(1) select Visit(de) as ExpressionNode).ToList();
for (int i = 0; i < formals.Count; i++)
{
caseNode.Cases.Add(
new AttributeNode(formals[i].Line, formals[i].Column)
{
Formal = formals[i],
DessignateExpression = dexprs[i]
});
}
return(caseNode);
}
/// <summary>
/// Visit a parse tree produced by the <c>case</c>
/// labeled alternative in <see cref="CoolParser.expr"/>.
/// <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 VisitCase([NotNull] CoolParser.CaseContext context)
{
return(VisitChildren(context));
}
/// <summary>
/// Exit a parse tree produced by the <c>case</c>
/// labeled alternative in <see cref="CoolParser.expr"/>.
/// <para>The default implementation does nothing.</para>
/// </summary>
/// <param name="context">The parse tree.</param>
public virtual void ExitCase([NotNull] CoolParser.CaseContext context)
{
}