package com.sap.runlet.interpreter.nativestdlib;
import java.util.Date;
import behavioral.actions.Statement;
import com.sap.ap.metamodel.utils.StringFormatter;
import com.sap.runlet.abstractinterpreter.Interpreter;
import com.sap.runlet.abstractinterpreter.objects.RunletObject;
import com.sap.runlet.abstractinterpreter.util.Fraction;
import com.sap.runlet.interpreter.RunletInterpreter;
import com.sap.runlet.interpreter.RunletStackFrame;
import com.sap.runlet.interpreter.objects.NativeObject;
import com.sap.runlet.interpreter.statements.ReturnInterpreter;
import data.classes.Association;
import data.classes.AssociationEnd;
import data.classes.ClassTypeDefinition;
import data.classes.MethodSignature;
import data.classes.NativeImpl;
import data.classes.Parameter;
import data.classes.SapClass;
import data.classes.SignatureImplementation;
import data.classes.TypeDefinition;
import dataaccess.expressions.Expression;
public class TimepointInterpreter implements Interpreter<NativeImpl, SapClass, TypeDefinition, ClassTypeDefinition,
Association, AssociationEnd, Statement, Expression, SignatureImplementation,
RunletStackFrame, NativeImpl, RunletInterpreter> {
private NativeImpl nativeImpl;
public TimepointInterpreter(NativeImpl nativeImpl) {
this.nativeImpl = nativeImpl;
}
@Override
public RunletObject<AssociationEnd, TypeDefinition, ClassTypeDefinition> evaluate(RunletInterpreter interpreter) throws SecurityException, IllegalArgumentException {
MethodSignature sig = nativeImpl.getImplements_();
Date thiz = (Date) ((NativeObject) interpreter.getCallstack().peek().getThis()).getNativeObject();
if (sig.getName().equals("before")) {
Parameter op = sig.getInput().get(0);
boolean result = true;
for (RunletObject<AssociationEnd, TypeDefinition, ClassTypeDefinition> argument : interpreter.getCallstack().peek().getValue(op)) {
result = result && thiz.before((Date) ((NativeObject) argument).getNativeObject());
if (!result) {
break;
}
}
return new ReturnInterpreter.ReturnResult(new NativeObject((ClassTypeDefinition) sig.getOutput(), result, interpreter
.getDefaultSnapshot(), interpreter));
}
if (sig.getName().equals("addSeconds")) {
Parameter op = sig.getInput().get(0);
Fraction THOUSAND = new Fraction(1000);
Fraction result = new Fraction(thiz.getTime());
for (RunletObject<AssociationEnd, TypeDefinition, ClassTypeDefinition> seconds : interpreter
.getCallstack().peek().getValue(op)) {
// argument is expected to be a Duration object; we'll fetch the "seconds" association end
Fraction secondsAsFraction = (Fraction) ((NativeObject) seconds).getNativeObject();
result = result.plus(secondsAsFraction.times(THOUSAND));
}
Date resultDate = new Date(result.asLong());
return new ReturnInterpreter.ReturnResult(new NativeObject((ClassTypeDefinition) sig.getOutput(), resultDate,
interpreter.getDefaultSnapshot(), interpreter));
}
throw new RuntimeException("Unknown native method " + StringFormatter.toString(nativeImpl.getImplements_())
+ " and no native interpreter registered for class " + sig.getOwner().getName());
}
}