public override object VisitCmpExpression([NotNull] TinyScriptParser.CmpExpressionContext context)
{
var a = VisitAddExpression(context.addExpression(0));
if (context.ChildCount > 2)
{
var b = VisitAddExpression(context.addExpression(1));
var op = context.GetChild(1).GetText();
switch (op)
{
case "==":
return(ValueEquals(a, b, context));
case "!=":
return(!ValueEquals(a, b, context));
case "<":
return((decimal)a < (decimal)b);
case "<=":
return((decimal)a <= (decimal)b);
case ">":
return((decimal)a > (decimal)b);
case ">=":
return((decimal)a >= (decimal)b);
}
throw context.Exception("Unsupported operation.");
}
return(a);
}
public override object VisitCmpExpression([NotNull] TinyScriptParser.CmpExpressionContext context)
{
var ret = (Type)VisitAddExpression(context.addExpression(0));
if (context.ChildCount > 1)
{
var t2 = (Type)VisitAddExpression(context.addExpression(1));
var op = context.GetChild(1).GetText();
var cmpType = GetOpType(context, ret, t2);
var b = OpBuilder.GetOpBuilder(cmpType, context, _builder);
b.ProcessCmp(op);
return(typeof(bool));
}
return(ret);
}
/// <summary>
/// Visit a parse tree produced by <see cref="TinyScriptParser.cmpExpression"/>.
/// <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 VisitCmpExpression([NotNull] TinyScriptParser.CmpExpressionContext context)
{
return(VisitChildren(context));
}
