package com.sap.runlet.interpreter.nativestdlib;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
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 CalendarInterpreter implements Interpreter<NativeImpl, SapClass, TypeDefinition, ClassTypeDefinition,
Association, AssociationEnd, Statement, Expression, SignatureImplementation,
RunletStackFrame, NativeImpl, RunletInterpreter> {
private NativeImpl nativeImpl;
public CalendarInterpreter(NativeImpl nativeImpl) {
this.nativeImpl = nativeImpl;
}
@Override
public RunletObject<AssociationEnd, TypeDefinition, ClassTypeDefinition> evaluate(RunletInterpreter interpreter) throws SecurityException, IllegalArgumentException {
MethodSignature sig = nativeImpl.getImplements_();
Parameter op = sig.getInput().get(0);
RunletObject<AssociationEnd, TypeDefinition, ClassTypeDefinition> argument = interpreter.getCallstack().peek().getValue(op);
Calendar cal = new GregorianCalendar();
cal.setTime((Date) ((NativeObject) argument).getNativeObject());
if (sig.getName().equals("getMonthInYear")) {
int result = cal.get(Calendar.MONTH)+1;
return new ReturnInterpreter.ReturnResult(new NativeObject((ClassTypeDefinition) sig.getOutput(),
new Fraction(result), interpreter
.getDefaultSnapshot(), interpreter));
} else if (sig.getName().equals("getYear")) {
int result = cal.get(Calendar.YEAR);
return new ReturnInterpreter.ReturnResult(new NativeObject((ClassTypeDefinition) sig.getOutput(),
new Fraction(result), interpreter
.getDefaultSnapshot(), interpreter));
}
throw new RuntimeException("Unknown native method " + StringFormatter.toString(nativeImpl.getImplements_())
+ sig.getOwner().getName());
}
}