package com.sap.runlet.interpreter.signatureimplementations;
import java.lang.reflect.InvocationTargetException;
import behavioral.actions.Block;
import behavioral.actions.Statement;
import com.sap.runlet.abstractinterpreter.Interpreter;
import com.sap.runlet.abstractinterpreter.objects.RunletObject;
import com.sap.runlet.interpreter.RunletInterpreter;
import com.sap.runlet.interpreter.RunletStackFrame;
import com.sap.runlet.interpreter.statements.ReturnInterpreter;
import data.classes.Association;
import data.classes.AssociationEnd;
import data.classes.ClassTypeDefinition;
import data.classes.NativeImpl;
import data.classes.SapClass;
import data.classes.SignatureImplementation;
import data.classes.TypeDefinition;
import dataaccess.expressions.Expression;
public class BlockInterpreter implements Interpreter<Block, SapClass, TypeDefinition, ClassTypeDefinition, Association, AssociationEnd, Statement, Expression, SignatureImplementation, RunletStackFrame, NativeImpl, RunletInterpreter> {
private Block block;
public BlockInterpreter(Block block) {
this.block = block;
}
@Override
public RunletObject<AssociationEnd, TypeDefinition, ClassTypeDefinition> evaluate(RunletInterpreter interpreter)
throws SecurityException, IllegalArgumentException,
NoSuchMethodException, InstantiationException,
IllegalAccessException, InvocationTargetException {
RunletObject<AssociationEnd, TypeDefinition, ClassTypeDefinition> result = null;
RunletStackFrame stackFrame =
new RunletStackFrame(/* parent */ interpreter.getCallstack().peek());
interpreter.getCallstack().push(stackFrame);
for (Statement statement:block.getStatements()) {
result = interpreter.evaluateStatement(statement);
if (result instanceof ReturnInterpreter.ReturnResult) {
// The ReturnInterpreter is expected to already have popped the stack frame
break;
}
}
interpreter.getCallstack().pop();
return result;
}
}