Examples with Body soot.Body used on opensource projects

Example 1 with Body

use of soot.Body in project robovm by robovm.

the class LambdaPlugin method transformMethod.

private void transformMethod(Config config, Clazz clazz, SootClass sootClass, SootMethod method, ModuleBuilder moduleBuilder) throws IOException {
    if (!method.isConcrete()) {
        return;
    }
    int tmpCounter = 0;
    Body body = method.retrieveActiveBody();
    PatchingChain<Unit> units = body.getUnits();
    for (Unit unit = units.getFirst(); unit != null; unit = body.getUnits().getSuccOf(unit)) {
        if (unit instanceof DefinitionStmt) {
            if (((DefinitionStmt) unit).getRightOp() instanceof DynamicInvokeExpr) {
                DynamicInvokeExpr expr = (DynamicInvokeExpr) ((DefinitionStmt) unit).getRightOp();
                if (isLambdaBootstrapMethod(expr.getBootstrapMethodRef())) {
                    LambdaClassGenerator generator = null;
                    synchronized (generators) {
                        generator = generators.get(sootClass);
                        if (generator == null) {
                            generator = new LambdaClassGenerator();
                            generators.put(sootClass, generator);
                        }
                    }
                    List<Value> bsmArgs = expr.getBootstrapArgs();
                    SootClass caller = sootClass;
                    String invokedName = expr.getMethodRef().name();
                    SootMethodRef invokedType = expr.getMethodRef();
                    SootMethodType samMethodType = (SootMethodType) bsmArgs.get(0);
                    SootMethodHandle implMethod = (SootMethodHandle) bsmArgs.get(1);
                    SootMethodType instantiatedMethodType = (SootMethodType) bsmArgs.get(2);
                    try {
                        LambdaClass callSite = null;
                        List<Type> markerInterfaces = new ArrayList<>();
                        List<SootMethodType> bridgeMethods = new ArrayList<>();
                        if (expr.getBootstrapMethodRef().name().equals("altMetafactory")) {
                            int flags = ((IntConstant) bsmArgs.get(3)).value;
                            int bsmArgsIdx = 4;
                            if ((flags & FLAG_MARKERS) > 0) {
                                int count = ((IntConstant) bsmArgs.get(bsmArgsIdx++)).value;
                                for (int i = 0; i < count; i++) {
                                    Object value = bsmArgs.get(bsmArgsIdx++);
                                    if (value instanceof Type) {
                                        markerInterfaces.add((Type) value);
                                    } else if (value instanceof ClassConstant) {
                                        String className = ((ClassConstant) value).getValue().replace('/', '.');
                                        markerInterfaces.add(SootResolver.v().resolveClass(className, SootClass.HIERARCHY).getType());
                                    }
                                }
                            }
                            if ((flags & FLAG_BRIDGES) > 0) {
                                int count = ((IntConstant) bsmArgs.get(bsmArgsIdx++)).value;
                                for (int i = 0; i < count; i++) {
                                    bridgeMethods.add((SootMethodType) bsmArgs.get(bsmArgsIdx++));
                                }
                            }
                        }
                        // see issue #1087
                        if (bridgeMethods.size() == 0) {
                            SootClass targetType = SootResolver.v().resolveClass(invokedType.returnType().toString().replace('/', '.'), SootClass.SIGNATURES);
                            String samDescriptor = Types.getDescriptor(samMethodType.getParameterTypes(), samMethodType.getReturnType());
                            for (SootMethod targetTypeMethod : targetType.getMethods()) {
                                boolean isBridgeMethod = targetTypeMethod.getName().equals(invokedName);
                                isBridgeMethod &= targetTypeMethod.getName().equals(invokedName);
                                isBridgeMethod &= targetTypeMethod.getParameterCount() == samMethodType.getParameterTypes().size();
                                isBridgeMethod &= ((targetTypeMethod.getModifiers() & BRIDGE) != 0);
                                isBridgeMethod &= ((targetTypeMethod.getModifiers() & SYNTHETIC) != 0);
                                if (isBridgeMethod) {
                                    String targetTypeMethodDesc = Types.getDescriptor(targetTypeMethod);
                                    if (!targetTypeMethodDesc.equals(samDescriptor)) {
                                        bridgeMethods.add(new BridgeMethodType(targetTypeMethod.getReturnType(), targetTypeMethod.getParameterTypes()));
                                    }
                                }
                            }
                        }
                        // generate the lambda class
                        callSite = generator.generate(caller, invokedName, invokedType, samMethodType, implMethod, instantiatedMethodType, markerInterfaces, bridgeMethods);
                        File f = clazz.getPath().getGeneratedClassFile(callSite.getLambdaClassName());
                        FileUtils.writeByteArrayToFile(f, callSite.getClassData());
                        // The lambda class is created after the caller is
                        // compiled.
                        // This prevents the triggering of a recompile of
                        // the caller.
                        f.setLastModified(clazz.lastModified());
                        SootClass lambdaClass = SootResolver.v().makeClassRef(callSite.getLambdaClassName().replace('/', '.'));
                        Local l = (Local) ((DefinitionStmt) unit).getLeftOp();
                        Type samType = callSite.getTargetMethodReturnType();
                        LinkedList<Unit> newUnits = new LinkedList<>();
                        if (callSite.getTargetMethodName().equals("<init>")) {
                            // Constant lambda. Create an instance once and
                            // reuse for
                            // every call.
                            String fieldName = lambdaClass.getName().substring(lambdaClass.getName().lastIndexOf('.') + 1);
                            SootField field = new SootField(fieldName, lambdaClass.getType(), Modifier.STATIC | Modifier.PRIVATE | Modifier.TRANSIENT | 0x1000);
                            method.getDeclaringClass().addField(field);
                            // l = LambdaClass.lambdaField
                            newUnits.add(Jimple.v().newAssignStmt(l, Jimple.v().newStaticFieldRef(field.makeRef())));
                            // if l != null goto succOfInvokedynamic
                            newUnits.add(Jimple.v().newIfStmt(Jimple.v().newNeExpr(l, NullConstant.v()), units.getSuccOf(unit)));
                            // $tmpX = new LambdaClass()
                            Local tmp = Jimple.v().newLocal("$tmp" + (tmpCounter++), lambdaClass.getType());
                            body.getLocals().add(tmp);
                            newUnits.add(Jimple.v().newAssignStmt(tmp, Jimple.v().newNewExpr(lambdaClass.getType())));
                            newUnits.add(Jimple.v().newInvokeStmt(Jimple.v().newSpecialInvokeExpr(tmp, Scene.v().makeConstructorRef(lambdaClass, Collections.<Type>emptyList()))));
                            // LambdaClass.lambdaField = $tmpX
                            newUnits.add(Jimple.v().newAssignStmt(Jimple.v().newStaticFieldRef(field.makeRef()), tmp));
                            // l = $tmpX
                            newUnits.add(Jimple.v().newAssignStmt(l, tmp));
                        } else {
                            // Static factory method returns the lambda to
                            // use.
                            newUnits.add(Jimple.v().newAssignStmt(l, Jimple.v().newStaticInvokeExpr(Scene.v().makeMethodRef(lambdaClass, callSite.getTargetMethodName(), callSite.getTargetMethodParameters(), samType, true), expr.getArgs())));
                        }
                        units.insertAfter(newUnits, unit);
                        units.remove(unit);
                        unit = newUnits.getLast();
                    } catch (Throwable e) {
                        // LambdaConversionException at runtime.
                        throw new CompilerException(e);
                    }
                }
            }
        }
    }
}

Example 2 with Body

use of soot.Body in project robovm by robovm.

the class ObjCMemberPlugin method getOrCreateStaticInitializer.

static SootMethod getOrCreateStaticInitializer(SootClass sootClass) {
    for (SootMethod m : sootClass.getMethods()) {
        if ("<clinit>".equals(m.getName())) {
            return m;
        }
    }
    SootMethod m = new SootMethod("<clinit>", Collections.emptyList(), VoidType.v(), STATIC);
    Body body = Jimple.v().newBody(m);
    body.getUnits().add(Jimple.v().newReturnVoidStmt());
    m.setActiveBody(body);
    sootClass.addMethod(m);
    return m;
}

Example 3 with Body

use of soot.Body in project robovm by robovm.

the class ObjCMemberPlugin method addObjCClassField.

private void addObjCClassField(SootClass sootClass) {
    Jimple j = Jimple.v();
    SootMethod clinit = getOrCreateStaticInitializer(sootClass);
    Body body = clinit.retrieveActiveBody();
    Local objCClass = Jimple.v().newLocal("$objCClass", org_robovm_objc_ObjCClass.getType());
    body.getLocals().add(objCClass);
    Chain<Unit> units = body.getUnits();
    SootField f = new SootField("$objCClass", org_robovm_objc_ObjCClass.getType(), STATIC | PRIVATE | FINAL);
    sootClass.addField(f);
    units.insertBefore(Arrays.<Unit>asList(j.newAssignStmt(objCClass, j.newStaticInvokeExpr(org_robovm_objc_ObjCClass_getByType, ClassConstant.v(sootClass.getName().replace('.', '/')))), j.newAssignStmt(j.newStaticFieldRef(f.makeRef()), objCClass)), units.getLast());
}

Example 4 with Body

use of soot.Body in project robovm by robovm.

the class ObjCMemberPlugin method createCallback.

private void createCallback(SootClass sootClass, SootMethod method, SootMethod annotatedMethod, String selectorName, Type receiverType) {
    Jimple j = Jimple.v();
    SootMethod callbackMethod = getCallbackMethod(selectorName, method, annotatedMethod, receiverType);
    sootClass.addMethod(callbackMethod);
    addCallbackAnnotation(callbackMethod);
    addBindSelectorAnnotation(callbackMethod, selectorName);
    if (!hasAnnotation(annotatedMethod, TYPE_ENCODING) && (isCustomClass(sootClass) || ObjCProtocolProxyPlugin.isObjCProxy(sootClass))) {
        String encoding = generateTypeEncoding(callbackMethod);
        try {
            addTypeEncodingAnnotation(callbackMethod, encoding);
        } catch (IllegalArgumentException e) {
            throw new CompilerException("Failed to determine method type encoding for method " + method + ": " + e.getMessage());
        }
    }
    Body body = j.newBody(callbackMethod);
    callbackMethod.setActiveBody(body);
    PatchingChain<Unit> units = body.getUnits();
    Local thiz = null;
    if (!method.isStatic()) {
        thiz = j.newLocal("$this", receiverType);
        body.getLocals().add(thiz);
        units.add(j.newIdentityStmt(thiz, j.newParameterRef(receiverType, 0)));
    }
    LinkedList<Value> args = new LinkedList<>();
    for (int i = 0; i < method.getParameterCount(); i++) {
        Type t = method.getParameterType(i);
        Local p = j.newLocal("$p" + i, t);
        body.getLocals().add(p);
        units.add(j.newIdentityStmt(p, j.newParameterRef(t, i + 2)));
        args.add(p);
    }
    Local ret = null;
    if (method.getReturnType() != VoidType.v()) {
        ret = j.newLocal("$ret", method.getReturnType());
        body.getLocals().add(ret);
    }
    SootMethodRef targetMethod = method.makeRef();
    if (((RefType) receiverType).getSootClass().isInterface()) {
        @SuppressWarnings("unchecked") List<Type> parameterTypes = method.getParameterTypes();
        targetMethod = Scene.v().makeMethodRef(((RefType) receiverType).getSootClass(), method.getName(), parameterTypes, method.getReturnType(), false);
    }
    InvokeExpr expr = method.isStatic() ? j.newStaticInvokeExpr(targetMethod, args) : (((RefType) receiverType).getSootClass().isInterface() ? j.newInterfaceInvokeExpr(thiz, targetMethod, args) : j.newVirtualInvokeExpr(thiz, targetMethod, args));
    units.add(ret == null ? j.newInvokeStmt(expr) : j.newAssignStmt(ret, expr));
    if (ret != null) {
        units.add(j.newReturnStmt(ret));
    } else {
        units.add(j.newReturnVoidStmt());
    }
}

Example 5 with Body

use of soot.Body in project robovm by robovm.

the class ObjCMemberPlugin method addBindCall.

private void addBindCall(SootClass sootClass) {
    Jimple j = Jimple.v();
    SootMethod clinit = getOrCreateStaticInitializer(sootClass);
    Body body = clinit.retrieveActiveBody();
    String internalName = sootClass.getName().replace('.', '/');
    ClassConstant c = ClassConstant.v(internalName);
    Chain<Unit> units = body.getUnits();
    // Don't call bind if there's already a call in the static initializer
    for (Unit unit : units) {
        if (unit instanceof InvokeStmt) {
            InvokeStmt stmt = (InvokeStmt) unit;
            if (stmt.getInvokeExpr() instanceof StaticInvokeExpr) {
                StaticInvokeExpr expr = (StaticInvokeExpr) stmt.getInvokeExpr();
                SootMethodRef ref = expr.getMethodRef();
                if (ref.isStatic() && ref.declaringClass().equals(org_robovm_objc_ObjCRuntime) && ref.name().equals("bind")) {
                    if (ref.parameterTypes().isEmpty() || expr.getArg(0).equals(c)) {
                        return;
                    }
                }
            }
        }
    }
    // Call ObjCRuntime.bind(<class>)
    units.insertBefore(j.newInvokeStmt(j.newStaticInvokeExpr(org_robovm_objc_ObjCRuntime_bind, ClassConstant.v(internalName))), units.getLast());
}