public override AST_Node VisitCompar([NotNull] CoolParser.ComparContext context)
{
AST_Expresion l = (AST_Expresion)Visit(context.expr(0));
AST_Expresion r = (AST_Expresion)Visit(context.expr(1));
return(new AST_BinaryOp(context, l, r, context.op));
}
public override int VisitCompar([NotNull] CoolParser.ComparContext context)
{
int s = Visit(context.expr(0));
int t = Visit(context.expr(1));
if (context.op.Type == CoolLexer.EQUAL_CM)
{
return((s == t)?1:0);
}
if (context.op.Type == CoolLexer.LESS)
{
return((s < t)?1:0);
}
return((s <= t) ? 1 : 0);
}
/// <summary>
/// Visit a parse tree produced by the <c>compar</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 VisitCompar([NotNull] CoolParser.ComparContext context)
{
return(VisitChildren(context));
}
