Exemplo n.º 1
0
  public static void generateMethodBody(
      @NotNull MethodVisitor mv,
      @NotNull FunctionDescriptor functionDescriptor,
      @NotNull MethodContext context,
      @NotNull JvmMethodSignature signature,
      @NotNull FunctionGenerationStrategy strategy,
      @NotNull MemberCodegen<?> parentCodegen) {
    mv.visitCode();

    Label methodBegin = new Label();
    mv.visitLabel(methodBegin);

    JetTypeMapper typeMapper = parentCodegen.typeMapper;

    Label methodEnd;
    if (context.getParentContext() instanceof DelegatingFacadeContext) {
      generateFacadeDelegateMethodBody(
          mv, signature.getAsmMethod(), (DelegatingFacadeContext) context.getParentContext());
      methodEnd = new Label();
    } else {
      FrameMap frameMap =
          createFrameMap(
              parentCodegen.state,
              functionDescriptor,
              signature,
              isStaticMethod(context.getContextKind(), functionDescriptor));

      Label methodEntry = new Label();
      mv.visitLabel(methodEntry);
      context.setMethodStartLabel(methodEntry);

      if (!JetTypeMapper.isAccessor(functionDescriptor)) {
        genNotNullAssertionsForParameters(
            new InstructionAdapter(mv), parentCodegen.state, functionDescriptor, frameMap);
      }
      methodEnd = new Label();
      context.setMethodEndLabel(methodEnd);
      strategy.generateBody(mv, frameMap, signature, context, parentCodegen);
    }

    mv.visitLabel(methodEnd);

    Type thisType = getThisTypeForFunction(functionDescriptor, context, typeMapper);
    generateLocalVariableTable(
        mv,
        signature,
        functionDescriptor,
        thisType,
        methodBegin,
        methodEnd,
        context.getContextKind());
  }
Exemplo n.º 2
0
  public static void generateMethodBody(
      @NotNull MethodVisitor mv,
      @NotNull FunctionDescriptor functionDescriptor,
      @NotNull MethodContext context,
      @NotNull JvmMethodSignature signature,
      @NotNull FunctionGenerationStrategy strategy,
      @NotNull MemberCodegen<?> parentCodegen) {
    mv.visitCode();

    Label methodBegin = new Label();
    mv.visitLabel(methodBegin);

    JetTypeMapper typeMapper = parentCodegen.typeMapper;
    if (BuiltinSpecialBridgesUtil.shouldHaveTypeSafeBarrier(
        functionDescriptor, getSignatureMapper(typeMapper))) {
      generateTypeCheckBarrierIfNeeded(
          new InstructionAdapter(mv),
          functionDescriptor,
          signature.getReturnType(),
          /* delegateParameterType = */ null);
    }

    Label methodEnd;

    int functionFakeIndex = -1;
    int lambdaFakeIndex = -1;

    if (context.getParentContext() instanceof MultifileClassFacadeContext) {
      generateFacadeDelegateMethodBody(
          mv, signature.getAsmMethod(), (MultifileClassFacadeContext) context.getParentContext());
      methodEnd = new Label();
    } else {
      FrameMap frameMap =
          createFrameMap(
              parentCodegen.state,
              functionDescriptor,
              signature,
              isStaticMethod(context.getContextKind(), functionDescriptor));
      if (context.isInlineMethodContext()) {
        functionFakeIndex = frameMap.enterTemp(Type.INT_TYPE);
      }

      if (context instanceof InlineLambdaContext) {
        lambdaFakeIndex = frameMap.enterTemp(Type.INT_TYPE);
      }

      Label methodEntry = new Label();
      mv.visitLabel(methodEntry);
      context.setMethodStartLabel(methodEntry);

      if (!JetTypeMapper.isAccessor(functionDescriptor)) {
        genNotNullAssertionsForParameters(
            new InstructionAdapter(mv), parentCodegen.state, functionDescriptor, frameMap);
      }
      methodEnd = new Label();
      context.setMethodEndLabel(methodEnd);
      strategy.generateBody(mv, frameMap, signature, context, parentCodegen);
    }

    mv.visitLabel(methodEnd);

    Type thisType = getThisTypeForFunction(functionDescriptor, context, typeMapper);
    generateLocalVariableTable(
        mv,
        signature,
        functionDescriptor,
        thisType,
        methodBegin,
        methodEnd,
        context.getContextKind());

    if (context.isInlineMethodContext() && functionFakeIndex != -1) {
      mv.visitLocalVariable(
          JvmAbi.LOCAL_VARIABLE_NAME_PREFIX_INLINE_FUNCTION
              + functionDescriptor.getName().asString(),
          Type.INT_TYPE.getDescriptor(),
          null,
          methodBegin,
          methodEnd,
          functionFakeIndex);
    }

    if (context instanceof InlineLambdaContext && thisType != null && lambdaFakeIndex != -1) {
      String name = thisType.getClassName();
      int indexOfLambdaOrdinal = name.lastIndexOf("$");
      if (indexOfLambdaOrdinal > 0) {
        int lambdaOrdinal = Integer.parseInt(name.substring(indexOfLambdaOrdinal + 1));
        mv.visitLocalVariable(
            JvmAbi.LOCAL_VARIABLE_NAME_PREFIX_INLINE_ARGUMENT + lambdaOrdinal,
            Type.INT_TYPE.getDescriptor(),
            null,
            methodBegin,
            methodEnd,
            lambdaFakeIndex);
      }
    }
  }
Exemplo n.º 3
0
  public void generateMethod(
      @NotNull JvmDeclarationOrigin origin,
      @NotNull FunctionDescriptor functionDescriptor,
      @NotNull MethodContext methodContext,
      @NotNull FunctionGenerationStrategy strategy) {
    OwnerKind contextKind = methodContext.getContextKind();
    if (isInterface(functionDescriptor.getContainingDeclaration())
        && functionDescriptor.getVisibility() == Visibilities.PRIVATE
        && contextKind != OwnerKind.DEFAULT_IMPLS) {
      return;
    }

    JvmMethodSignature jvmSignature = typeMapper.mapSignature(functionDescriptor, contextKind);
    Method asmMethod = jvmSignature.getAsmMethod();

    int flags = getMethodAsmFlags(functionDescriptor, contextKind);
    boolean isNative = NativeKt.hasNativeAnnotation(functionDescriptor);

    if (isNative && owner instanceof MultifileClassFacadeContext) {
      // Native methods are only defined in facades and do not need package part implementations
      return;
    }
    MethodVisitor mv =
        v.newMethod(
            origin,
            flags,
            asmMethod.getName(),
            asmMethod.getDescriptor(),
            jvmSignature.getGenericsSignature(),
            getThrownExceptions(functionDescriptor, typeMapper));

    if (CodegenContextUtil.isImplClassOwner(owner)) {
      v.getSerializationBindings().put(METHOD_FOR_FUNCTION, functionDescriptor, asmMethod);
    }

    generateMethodAnnotations(functionDescriptor, asmMethod, mv);

    generateParameterAnnotations(
        functionDescriptor, mv, typeMapper.mapSignature(functionDescriptor));

    generateBridges(functionDescriptor);

    boolean staticInCompanionObject =
        AnnotationUtilKt.isPlatformStaticInCompanionObject(functionDescriptor);
    if (staticInCompanionObject) {
      ImplementationBodyCodegen parentBodyCodegen =
          (ImplementationBodyCodegen) memberCodegen.getParentCodegen();
      parentBodyCodegen.addAdditionalTask(
          new JvmStaticGenerator(functionDescriptor, origin, state));
    }

    if (state.getClassBuilderMode() == ClassBuilderMode.LIGHT_CLASSES
        || isAbstractMethod(functionDescriptor, contextKind)) {
      generateLocalVariableTable(
          mv,
          jvmSignature,
          functionDescriptor,
          getThisTypeForFunction(functionDescriptor, methodContext, typeMapper),
          new Label(),
          new Label(),
          contextKind);

      mv.visitEnd();
      return;
    }

    if (!isNative) {
      generateMethodBody(
          mv, functionDescriptor, methodContext, jvmSignature, strategy, memberCodegen);
    } else if (staticInCompanionObject) {
      // native @JvmStatic foo() in companion object should delegate to the static native function
      // moved to the outer class
      mv.visitCode();
      FunctionDescriptor staticFunctionDescriptor =
          JvmStaticGenerator.createStaticFunctionDescriptor(functionDescriptor);
      JvmMethodSignature jvmMethodSignature =
          typeMapper.mapSignature(
              memberCodegen.getContext().accessibleDescriptor(staticFunctionDescriptor, null));
      Type owningType =
          typeMapper.mapClass(
              (ClassifierDescriptor) staticFunctionDescriptor.getContainingDeclaration());
      generateDelegateToMethodBody(
          false, mv, jvmMethodSignature.getAsmMethod(), owningType.getInternalName());
    }

    endVisit(mv, null, origin.getElement());
  }