public override TinyValue VisitCompExpression([NotNull] TinyUnityParser.CompExpressionContext context)
{
switch (context.op.Type)
{
case TinyUnityLexer.LT:
return(lessThan(context));
case TinyUnityLexer.LTEquals:
return(lessThanEq(context));
case TinyUnityLexer.GT:
return(greaterThan(context));
case TinyUnityLexer.GTEquals:
return(greaterThanEq(context));
default:
throw new EvalException("unknown operator type: " + context.op.Type, context);
}
}
private TinyValue greaterThanEq(TinyUnityParser.CompExpressionContext context)
{
TinyValue lhs = this.Visit(context.expression(0));
TinyValue rhs = this.Visit(context.expression(1));
if (lhs == null || rhs == null)
{
throw new EvalException("Null operators: " + context.op.Type, context);
}
if (lhs.value is float && rhs.value is float)
{
return(new TinyValue((float)lhs.value >= (float)rhs.value));
}
if (lhs.isString() && rhs.isString())
{
return(new TinyValue(lhs.asString().CompareTo(rhs.asString()) >= 0));
}
throw new EvalException("Bad operators: " + context.op.Type, context);
}
