Examples with NEW org.objectweb.asm.Opcodes.NEW used on opensource projects

Example 1 with NEW

use of org.objectweb.asm.Opcodes.NEW in project groovy by apache.

the class StaticTypesCallSiteWriter method writeListDotProperty.

private void writeListDotProperty(final Expression receiver, final String propertyName, final boolean safe) {
    // for lists, replace list.foo with:
    // def result = new ArrayList(list.size())
    // for (item in list) result.add(item.foo)
    // result
    ClassNode componentType = receiver.getNodeMetaData(StaticCompilationMetadataKeys.COMPONENT_TYPE);
    if (componentType == null) {
        componentType = OBJECT_TYPE;
    }
    CompileStack compileStack = controller.getCompileStack();
    MethodVisitor mv = controller.getMethodVisitor();
    Label exit = new Label();
    if (safe) {
        receiver.visit(controller.getAcg());
        Label doGet = new Label();
        mv.visitJumpInsn(IFNONNULL, doGet);
        controller.getOperandStack().remove(1);
        mv.visitInsn(ACONST_NULL);
        mv.visitJumpInsn(GOTO, exit);
        mv.visitLabel(doGet);
    }
    Variable tmpList = varX("tmpList", ClassHelper.make(ArrayList.class));
    int var = compileStack.defineTemporaryVariable(tmpList, false);
    Variable iterator = varX("iterator", Iterator_TYPE);
    int it = compileStack.defineTemporaryVariable(iterator, false);
    Variable nextVar = varX("next", componentType);
    final int next = compileStack.defineTemporaryVariable(nextVar, false);
    mv.visitTypeInsn(NEW, "java/util/ArrayList");
    mv.visitInsn(DUP);
    receiver.visit(controller.getAcg());
    mv.visitMethodInsn(INVOKEINTERFACE, "java/util/List", "size", "()I", true);
    controller.getOperandStack().remove(1);
    mv.visitMethodInsn(INVOKESPECIAL, "java/util/ArrayList", "<init>", "(I)V", false);
    mv.visitVarInsn(ASTORE, var);
    Label l1 = new Label();
    mv.visitLabel(l1);
    receiver.visit(controller.getAcg());
    mv.visitMethodInsn(INVOKEINTERFACE, "java/util/List", "iterator", "()Ljava/util/Iterator;", true);
    controller.getOperandStack().remove(1);
    mv.visitVarInsn(ASTORE, it);
    Label l2 = new Label();
    mv.visitLabel(l2);
    mv.visitVarInsn(ALOAD, it);
    mv.visitMethodInsn(INVOKEINTERFACE, "java/util/Iterator", "hasNext", "()Z", true);
    Label l3 = new Label();
    mv.visitJumpInsn(IFEQ, l3);
    mv.visitVarInsn(ALOAD, it);
    mv.visitMethodInsn(INVOKEINTERFACE, "java/util/Iterator", "next", "()Ljava/lang/Object;", true);
    mv.visitTypeInsn(CHECKCAST, BytecodeHelper.getClassInternalName(componentType));
    mv.visitVarInsn(ASTORE, next);
    Label l4 = new Label();
    mv.visitLabel(l4);
    mv.visitVarInsn(ALOAD, var);
    PropertyExpression pexp = propX(bytecodeX(componentType, v -> v.visitVarInsn(ALOAD, next)), propertyName);
    pexp.visit(controller.getAcg());
    controller.getOperandStack().box();
    controller.getOperandStack().remove(1);
    mv.visitMethodInsn(INVOKEINTERFACE, "java/util/List", "add", "(Ljava/lang/Object;)Z", true);
    mv.visitInsn(POP);
    Label l5 = new Label();
    mv.visitLabel(l5);
    mv.visitJumpInsn(GOTO, l2);
    mv.visitLabel(l3);
    mv.visitVarInsn(ALOAD, var);
    if (safe) {
        mv.visitLabel(exit);
    }
    controller.getOperandStack().push(ClassHelper.make(ArrayList.class));
    controller.getCompileStack().removeVar(next);
    controller.getCompileStack().removeVar(it);
    controller.getCompileStack().removeVar(var);
}

Example 2 with NEW

use of org.objectweb.asm.Opcodes.NEW in project sonar-java by SonarSource.

the class BytecodeEGWalker method branchingState.

@VisibleForTesting
ProgramState branchingState(Instruction terminator, ProgramState programState) {
    ProgramState.Pop pop;
    ProgramState ps;
    List<ProgramState.SymbolicValueSymbol> symbolicValueSymbols;
    switch(terminator.opcode) {
        case IFEQ:
        case IFNE:
        case IFLT:
        case IFGE:
        case IFGT:
        case IFLE:
            pop = programState.unstackValue(1);
            SymbolicValue svZero = new SymbolicValue();
            symbolicValueSymbols = ImmutableList.of(new ProgramState.SymbolicValueSymbol(svZero, null), pop.valuesAndSymbols.get(0));
            List<ProgramState> programStates = svZero.setConstraint(pop.state, DivisionByZeroCheck.ZeroConstraint.ZERO).stream().flatMap(s -> svZero.setConstraint(s, BooleanConstraint.FALSE).stream()).collect(Collectors.toList());
            Preconditions.checkState(programStates.size() == 1);
            ps = programStates.get(0);
            break;
        case IF_ICMPEQ:
        case IF_ICMPNE:
        case IF_ICMPLT:
        case IF_ICMPGE:
        case IF_ICMPGT:
        case IF_ICMPLE:
        case IF_ACMPEQ:
        case IF_ACMPNE:
            pop = programState.unstackValue(2);
            symbolicValueSymbols = pop.valuesAndSymbols;
            ps = pop.state;
            break;
        case IFNULL:
        case IFNONNULL:
            pop = programState.unstackValue(1);
            symbolicValueSymbols = ImmutableList.of(new ProgramState.SymbolicValueSymbol(SymbolicValue.NULL_LITERAL, null), pop.valuesAndSymbols.get(0));
            ps = pop.state;
            break;
        default:
            throw new IllegalStateException("Unexpected terminator " + terminator);
    }
    return ps.stackValue(constraintManager.createBinarySymbolicValue(terminator, symbolicValueSymbols));
}

Example 3 with NEW

use of org.objectweb.asm.Opcodes.NEW in project sonar-java by SonarSource.

the class BytecodeEGWalker method enqueueExceptionHandlers.

private void enqueueExceptionHandlers(Type exceptionType, ProgramState ps) {
    List<BytecodeCFG.Block> blocksCatchingException = programPosition.block.successors().stream().map(b -> (BytecodeCFG.Block) b).filter(BytecodeCFG.Block::isCatchBlock).filter(b -> isExceptionHandledByBlock(exceptionType, b)).collect(Collectors.toList());
    if (!blocksCatchingException.isEmpty()) {
        blocksCatchingException.forEach(b -> enqueue(new ProgramPoint(b), ps));
        if (isCatchExhaustive(exceptionType, blocksCatchingException)) {
            return;
        }
    }
    // exception was not handled or was handled only partially, enqueue exit block with exceptional SV
    Preconditions.checkState(ps.peekValue() instanceof SymbolicValue.ExceptionalSymbolicValue, "Exception shall be on top of the stack");
    ps.storeExitValue();
    enqueue(new ProgramPoint(exitBlock), ps);
}

Example 4 with NEW

use of org.objectweb.asm.Opcodes.NEW in project groovy by apache.

the class StaticTypesLambdaWriter method newGroovyLambdaWrapperAndLoad.

private void newGroovyLambdaWrapperAndLoad(final ClassNode lambdaClass, final LambdaExpression expression, final boolean accessingInstanceMembers) {
    CompileStack compileStack = controller.getCompileStack();
    OperandStack operandStack = controller.getOperandStack();
    MethodVisitor mv = controller.getMethodVisitor();
    String lambdaClassInternalName = BytecodeHelper.getClassInternalName(lambdaClass);
    mv.visitTypeInsn(NEW, lambdaClassInternalName);
    mv.visitInsn(DUP);
    if (controller.isStaticMethod() || compileStack.isInSpecialConstructorCall() || !accessingInstanceMembers) {
        classX(controller.getThisType()).visit(controller.getAcg());
    } else {
        loadThis();
    }
    operandStack.dup();
    loadSharedVariables(expression);
    Optional<ConstructorNode> generatedConstructor = lambdaClass.getDeclaredConstructors().stream().filter(ctor -> Boolean.TRUE.equals(ctor.getNodeMetaData(IS_GENERATED_CONSTRUCTOR))).findFirst();
    if (!generatedConstructor.isPresent()) {
        throw new GroovyBugError("Failed to find the generated constructor");
    }
    Parameter[] lambdaClassConstructorParameters = generatedConstructor.get().getParameters();
    mv.visitMethodInsn(INVOKESPECIAL, lambdaClassInternalName, "<init>", BytecodeHelper.getMethodDescriptor(VOID_TYPE, lambdaClassConstructorParameters), lambdaClass.isInterface());
    operandStack.replace(CLOSURE_TYPE, lambdaClassConstructorParameters.length);
}