/*
* public override void OnCodeAnalysis(CodeAnalysisArgs args) {
* switch (args.Phase) {
* case CodeAnalysisPhase.Binding:
* _dispatcher = args.Context.Runtime.GetDispatcher(Op);
* if (_dispatcher == null)
* args.Context.ReportError(this.Location, "Operator " + Op + " not defined.");
* break;
* }//switch
* base.OnCodeAnalysis(args);
* }
*/
protected override void DoEvaluate(EvaluationContext context)
{
try {
Left.Evaluate(context);
object arg1 = context.CurrentResult;
Right.Evaluate(context);
context.Arg2 = context.CurrentResult;
context.Arg1 = arg1;
_dispatcher.Evaluate(context);
} catch (RuntimeException e) {
e.Location = this.Location;
throw;
}
}
private void EvaluateOther(EvaluationContext context)
{
Arg.Evaluate(context);
context.Arg1 = context.CurrentResult;
_dispatcher.Evaluate(context);
}
public void TestOperatorDispatchPlus()
{
LanguageRuntime runtime = new LanguageRuntime();
CallDispatcher dispatcher = runtime.GetDispatcher("+");
object v;
v = dispatcher.Evaluate(2, 3);
CheckResult(v, 5, "int + int");
v = dispatcher.Evaluate(2, 3.0);
CheckResult(v, 5.0, "int + double");
v = dispatcher.Evaluate(2, "3");
CheckResult(v, "23", "int + string");
v = dispatcher.Evaluate("2", "3");
CheckResult(v, "23", "string + string");
//Note that for all operations on bytes/sbytes/int16 types our implementation returns int32
v = dispatcher.Evaluate((sbyte)2, (sbyte)3);
CheckResult(v, 5, "sbyte + sbyte");
v = dispatcher.Evaluate((byte)2, (byte)3);
CheckResult(v, 5, "byte + byte");
v = dispatcher.Evaluate((Int16)2, (Int16)3);
CheckResult(v, 5, "Int16 + Int16");
v = dispatcher.Evaluate((byte)2, 3);
CheckResult(v, 5, "byte + int");
v = dispatcher.Evaluate(int.MaxValue, 10); //we get overflow here, and switch to Int64
CheckResult(v, (Int64)int.MaxValue + 10, "Int32 overflow");
BigInteger xBig = BigInteger.Create(1000000000); //one billion
xBig = xBig * xBig * xBig;
xBig = xBig * xBig * xBig - 1; //that makes it really big
v = dispatcher.Evaluate(xBig, 2);
Assert.IsTrue(v != null && v.GetType() == typeof(BigInteger) && v.ToString().EndsWith("0001"), "Test [BigInteger + int] failed");
v = dispatcher.Evaluate(new Complex(1, 2), new Complex(2, 3));
CheckResult(v, new Complex(3, 5), "complex + complex");
}
private void DispatchMultiple(CallDispatcher dispatcher, object x, object y) {
int count = 1000000; // one million
int index = count / 10; //do it in 10-packs to reduce the impact of the loop counting
Stopwatch sw = new Stopwatch();
sw.Start();
while (index-- > 0) {
dispatcher.Evaluate(x, y);
dispatcher.Evaluate(x, y);
dispatcher.Evaluate(x, y);
dispatcher.Evaluate(x, y);
dispatcher.Evaluate(x, y);
dispatcher.Evaluate(x, y);
dispatcher.Evaluate(x, y);
dispatcher.Evaluate(x, y);
dispatcher.Evaluate(x, y);
dispatcher.Evaluate(x, y);
}
sw.Stop();
long timeNsPerOper = sw.ElapsedMilliseconds * 1000000 / count; //timeMs * (one million ns per ms) divided by number of runs
string msg = x.GetType().Name + " + " + y.GetType().Name;
Trace.WriteLine(msg.PadRight(20) + ": " + timeNsPerOper);
}