Esempio n. 1
0
  public LambdaInfo getLambdaIfExists(AbstractInsnNode insnNode) {
    if (insnNode.getOpcode() == Opcodes.ALOAD) {
      int varIndex = ((VarInsnNode) insnNode).var;
      if (varIndex < parameters.totalSize()) {
        return parameters.get(varIndex).getLambda();
      }
    } else if (insnNode instanceof FieldInsnNode) {
      FieldInsnNode fieldInsnNode = (FieldInsnNode) insnNode;
      if (fieldInsnNode.name.startsWith("$$$")) {
        return findCapturedField(fieldInsnNode, nodeRemapper).getLambda();
      }
    }

    return null;
  }
Esempio n. 2
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  private MethodNode doInline(MethodNode node) {

    final Deque<InvokeCall> currentInvokes = new LinkedList<InvokeCall>(invokeCalls);

    final MethodNode resultNode =
        new MethodNode(node.access, node.name, node.desc, node.signature, null);

    final Iterator<AnonymousObjectGeneration> iterator = anonymousObjectGenerations.iterator();

    RemappingMethodAdapter remappingMethodAdapter =
        new RemappingMethodAdapter(
            resultNode.access, resultNode.desc, resultNode, new TypeRemapper(currentTypeMapping));

    InlineAdapter lambdaInliner =
        new InlineAdapter(remappingMethodAdapter, parameters.totalSize()) {

          private AnonymousObjectGeneration anonymousObjectGen;

          private void handleAnonymousObjectGeneration() {
            anonymousObjectGen = iterator.next();

            if (anonymousObjectGen.shouldRegenerate()) {
              // TODO: need poping of type but what to do with local funs???
              Type newLambdaType =
                  Type.getObjectType(inliningContext.nameGenerator.genLambdaClassName());
              currentTypeMapping.put(
                  anonymousObjectGen.getOwnerInternalName(), newLambdaType.getInternalName());
              AnonymousObjectTransformer transformer =
                  new AnonymousObjectTransformer(
                      anonymousObjectGen.getOwnerInternalName(),
                      inliningContext.subInlineWithClassRegeneration(
                          inliningContext.nameGenerator, currentTypeMapping, anonymousObjectGen),
                      isSameModule,
                      newLambdaType);

              InlineResult transformResult =
                  transformer.doTransform(anonymousObjectGen, nodeRemapper);
              result.addAllClassesToRemove(transformResult);

              if (inliningContext.isInliningLambda && !anonymousObjectGen.isStaticOrigin()) {
                // this class is transformed and original not used so we should remove original one
                // after inlining
                // Note: It is unsafe to remove anonymous class that is referenced by GETSTATIC
                // within lambda
                // because it can be local function from outer scope
                result.addClassToRemove(anonymousObjectGen.getOwnerInternalName());
              }

              if (transformResult.getReifiedTypeParametersUsages().wereUsedReifiedParameters()) {
                ReifiedTypeInliner.putNeedClassReificationMarker(mv);
                result
                    .getReifiedTypeParametersUsages()
                    .mergeAll(transformResult.getReifiedTypeParametersUsages());
              }
            }
          }

          @Override
          public void anew(@NotNull Type type) {
            if (isAnonymousConstructorCall(type.getInternalName(), "<init>")) {
              handleAnonymousObjectGeneration();
            }

            // in case of regenerated anonymousObjectGen type would be remapped to new one via
            // remappingMethodAdapter
            super.anew(type);
          }

          @Override
          public void visitMethodInsn(
              int opcode, String owner, String name, String desc, boolean itf) {
            if (
            /*INLINE_RUNTIME.equals(owner) &&*/ isInvokeOnLambda(owner, name)) { // TODO add method
              assert !currentInvokes.isEmpty();
              InvokeCall invokeCall = currentInvokes.remove();
              LambdaInfo info = invokeCall.lambdaInfo;

              if (info == null) {
                // noninlinable lambda
                super.visitMethodInsn(opcode, owner, name, desc, itf);
                return;
              }

              int valueParamShift = getNextLocalIndex(); // NB: don't inline cause it changes
              putStackValuesIntoLocals(
                  info.getInvokeParamsWithoutCaptured(), valueParamShift, this, desc);

              addInlineMarker(this, true);
              Parameters lambdaParameters = info.addAllParameters(nodeRemapper);

              InlinedLambdaRemapper newCapturedRemapper =
                  new InlinedLambdaRemapper(
                      info.getLambdaClassType().getInternalName(), nodeRemapper, lambdaParameters);

              setLambdaInlining(true);
              MethodInliner inliner =
                  new MethodInliner(
                      info.getNode(),
                      lambdaParameters,
                      inliningContext.subInlineLambda(info),
                      newCapturedRemapper,
                      true /*cause all calls in same module as lambda*/,
                      "Lambda inlining " + info.getLambdaClassType().getInternalName());

              LocalVarRemapper remapper = new LocalVarRemapper(lambdaParameters, valueParamShift);
              InlineResult lambdaResult =
                  inliner.doInline(
                      this.mv, remapper, true, info); // TODO add skipped this and receiver
              result.addAllClassesToRemove(lambdaResult);

              // return value boxing/unboxing
              Method bridge =
                  typeMapper
                      .mapSignature(
                          ClosureCodegen.getErasedInvokeFunction(info.getFunctionDescriptor()))
                      .getAsmMethod();
              Method delegate =
                  typeMapper.mapSignature(info.getFunctionDescriptor()).getAsmMethod();
              StackValue.onStack(delegate.getReturnType()).put(bridge.getReturnType(), this);
              setLambdaInlining(false);
              addInlineMarker(this, false);
            } else if (isAnonymousConstructorCall(owner, name)) { // TODO add method
              assert anonymousObjectGen != null
                  : "<init> call not corresponds to new call" + owner + " " + name;
              if (anonymousObjectGen.shouldRegenerate()) {
                // put additional captured parameters on stack
                for (CapturedParamDesc capturedParamDesc :
                    anonymousObjectGen.getAllRecapturedParameters()) {
                  visitFieldInsn(
                      Opcodes.GETSTATIC,
                      capturedParamDesc.getContainingLambdaName(),
                      "$$$" + capturedParamDesc.getFieldName(),
                      capturedParamDesc.getType().getDescriptor());
                }
                super.visitMethodInsn(
                    opcode,
                    anonymousObjectGen.getNewLambdaType().getInternalName(),
                    name,
                    anonymousObjectGen.getNewConstructorDescriptor(),
                    itf);
                anonymousObjectGen = null;
              } else {
                super.visitMethodInsn(
                    opcode, changeOwnerForExternalPackage(owner, opcode), name, desc, itf);
              }
            } else if (ReifiedTypeInliner.isNeedClassReificationMarker(
                new MethodInsnNode(opcode, owner, name, desc, false))) {
              // we will put it if needed in anew processing
            } else {
              super.visitMethodInsn(
                  opcode, changeOwnerForExternalPackage(owner, opcode), name, desc, itf);
            }
          }

          @Override
          public void visitFieldInsn(
              int opcode, @NotNull String owner, @NotNull String name, @NotNull String desc) {
            if (opcode == Opcodes.GETSTATIC && isAnonymousSingletonLoad(owner, name)) {
              handleAnonymousObjectGeneration();
            }
            super.visitFieldInsn(opcode, owner, name, desc);
          }

          @Override
          public void visitMaxs(int stack, int locals) {
            lambdasFinallyBlocks = resultNode.tryCatchBlocks.size();
            super.visitMaxs(stack, locals);
          }
        };

    node.accept(lambdaInliner);

    return resultNode;
  }
Esempio n. 3
0
  private InlineResult inlineCall(SMAPAndMethodNode nodeAndSmap) {
    MethodNode node = nodeAndSmap.getNode();
    ReifiedTypeParametersUsages reificationResult =
        reifiedTypeInliner.reifyInstructions(node.instructions);
    generateClosuresBodies();

    // through generation captured parameters will be added to invocationParamBuilder
    putClosureParametersOnStack();

    addInlineMarker(codegen.v, true);

    Parameters parameters = invocationParamBuilder.buildParameters();

    InliningContext info =
        new RootInliningContext(
            expressionMap,
            state,
            codegen.getInlineNameGenerator().subGenerator(functionDescriptor.getName().asString()),
            codegen.getContext(),
            callElement,
            codegen.getParentCodegen().getClassName(),
            reifiedTypeInliner);

    MethodInliner inliner =
        new MethodInliner(
            node,
            parameters,
            info,
            new FieldRemapper(null, null, parameters),
            isSameModule,
            "Method inlining " + callElement.getText(),
            createNestedSourceMapper(nodeAndSmap)); // with captured

    LocalVarRemapper remapper = new LocalVarRemapper(parameters, initialFrameSize);

    MethodNode adapter = InlineCodegenUtil.createEmptyMethodNode();
    // hack to keep linenumber info, otherwise jdi will skip begin of linenumber chain
    adapter.visitInsn(Opcodes.NOP);

    InlineResult result = inliner.doInline(adapter, remapper, true, LabelOwner.SKIP_ALL);
    result.getReifiedTypeParametersUsages().mergeAll(reificationResult);

    CallableMemberDescriptor descriptor = codegen.getContext().getContextDescriptor();
    final Set<String> labels =
        getDeclarationLabels(
            DescriptorToSourceUtils.descriptorToDeclaration(descriptor), descriptor);
    LabelOwner labelOwner =
        new LabelOwner() {
          @Override
          public boolean isMyLabel(@NotNull String name) {
            return labels.contains(name);
          }
        };

    List<MethodInliner.PointForExternalFinallyBlocks> infos =
        MethodInliner.processReturns(adapter, labelOwner, true, null);
    generateAndInsertFinallyBlocks(
        adapter,
        infos,
        ((StackValue.Local) remapper.remap(parameters.totalSize() + 1).value).index);
    removeFinallyMarkers(adapter);

    adapter.accept(new InliningInstructionAdapter(codegen.v));

    addInlineMarker(codegen.v, false);

    return result;
  }