Java Wrapper类代码示例

import com.google.common.base.Equivalence.Wrapper; //导入依赖的package包/类
private Iterable<ModelPropertyExtractionContext> selectProperties(final ModelSchemaExtractionContext<?> context, CandidateMethods candidateMethods) {
    Map<String, ModelPropertyExtractionContext> propertiesMap = Maps.newTreeMap();
    for (Map.Entry<Wrapper<Method>, Collection<Method>> entry : candidateMethods.allMethods().entrySet()) {
        Method method = entry.getKey().get();
        PropertyAccessorType propertyAccessorType = PropertyAccessorType.of(method);
        Collection<Method> methodsWithEqualSignature = entry.getValue();
        if (propertyAccessorType != null) {
            String propertyName = propertyAccessorType.propertyNameFor(method);
            ModelPropertyExtractionContext propertyContext = propertiesMap.get(propertyName);
            if (propertyContext == null) {
                propertyContext = new ModelPropertyExtractionContext(propertyName);
                propertiesMap.put(propertyName, propertyContext);
            }
            propertyContext.addAccessor(new PropertyAccessorExtractionContext(propertyAccessorType, methodsWithEqualSignature));
        }
    }
    return Collections2.filter(propertiesMap.values(), new Predicate<ModelPropertyExtractionContext>() {
        @Override
        public boolean apply(ModelPropertyExtractionContext property) {
            return property.isReadable();
        }
    });
}
 

import com.google.common.base.Equivalence.Wrapper; //导入依赖的package包/类
/**
 * Marks all methods live that can be reached by calls previously seen.
 *
 * <p>This should only be invoked if the given type newly becomes instantiated. In essence, this
 * method replays all the invokes we have seen so far that could apply to this type and marks
 * the corresponding methods live.
 *
 * <p>Only methods that are visible in this type are considered. That is, only those methods that
 * are either defined directly on this type or that are defined on a supertype but are not
 * shadowed by another inherited method.
 */
private void transitionMethodsForInstantiatedClass(DexType type) {
  Set<Wrapper<DexMethod>> seen = new HashSet<>();
  MethodSignatureEquivalence equivalence = MethodSignatureEquivalence.get();
  do {
    DexClass clazz = appInfo.definitionFor(type);
    if (clazz == null) {
      reportMissingClass(type);
      // TODO(herhut): In essence, our subtyping chain is broken here. Handle that case better.
      break;
    }
    SetWithReason<DexEncodedMethod> reachableMethods = reachableVirtualMethods.get(type);
    if (reachableMethods != null) {
      for (DexEncodedMethod encodedMethod : reachableMethods.getItems()) {
        Wrapper<DexMethod> ignoringClass = equivalence.wrap(encodedMethod.method);
        if (!seen.contains(ignoringClass)) {
          seen.add(ignoringClass);
          markVirtualMethodAsLive(encodedMethod, KeepReason.reachableFromLiveType(type));
        }
      }
    }
    type = clazz.superType;
  } while (type != null && !instantiatedTypes.contains(type));
}
 

import com.google.common.base.Equivalence.Wrapper; //导入依赖的package包/类
private void markMethod(DexEncodedMethod method, Collection<ProguardMemberRule> rules,
    ProguardConfigurationRule context, Set<Wrapper<DexMethod>> methodsMarked,
    DexType onlyIfClassKept) {
  if ((methodsMarked != null)
      && methodsMarked.contains(MethodSignatureEquivalence.get().wrap(method.method))) {
    return;
  }
  for (ProguardMemberRule rule : rules) {
    if (rule.matches(method, this)) {
      if (Log.ENABLED) {
        Log.verbose(getClass(), "Marking method `%s` due to `%s { %s }`.", method, context,
            rule);
      }
      if (methodsMarked != null) {
        methodsMarked.add(MethodSignatureEquivalence.get().wrap(method.method));
      }
      addItemToSets(method, context, rule, onlyIfClassKept);
    }
  }
}
 

import com.google.common.base.Equivalence.Wrapper; //导入依赖的package包/类
private <T extends PresortedComparable<T>, S extends KeyedDexItem<T>> void addNonShadowed(
    Iterator<S> items,
    HashMap<Wrapper<T>, S> map,
    Equivalence<T> equivalence,
    Set<Wrapper<T>> existing,
    BiFunction<S, S, S> onConflict) {
  while (items.hasNext()) {
    S item = items.next();
    if (item == null) {
      // This item was filtered out by a preprocessing.
      continue;
    }
    Wrapper<T> wrapped = equivalence.wrap(item.getKey());
    if (existing.contains(wrapped)) {
      S resolved = onConflict.apply(map.get(wrapped), item);
      wrapped = equivalence.wrap(resolved.getKey());
      map.put(wrapped, resolved);
    } else {
      map.put(wrapped, item);
    }
  }
}
 

import com.google.common.base.Equivalence.Wrapper; //导入依赖的package包/类
static Set<Equivalence.Wrapper<ExprNode>> mergePredecessors(
    Map<Block, Set<Equivalence.Wrapper<ExprNode>>> blockToAccessedExprs, Block current) {
  Set<Equivalence.Wrapper<ExprNode>> currentBlockSet = null;
  for (Block predecessor : current.predecessors) {
    Set<Wrapper<ExprNode>> predecessorBlockSet = blockToAccessedExprs.get(predecessor);
    if (currentBlockSet == null) {
      currentBlockSet = new HashSet<>(predecessorBlockSet);
    } else {
      currentBlockSet.retainAll(predecessorBlockSet);
    }
  }
  if (currentBlockSet == null) {
    currentBlockSet = new HashSet<>();
  }
  return currentBlockSet;
}
 

import com.google.common.base.Equivalence.Wrapper; //导入依赖的package包/类
private void addTypeSubstitutions(Map<Wrapper<ExprNode>, SoyType> substitutionsToAdd) {
  for (Map.Entry<Wrapper<ExprNode>, SoyType> entry : substitutionsToAdd.entrySet()) {
    ExprNode expr = entry.getKey().get();
    // Get the existing type
    SoyType previousType = expr.getType();
    for (TypeSubstitution subst = substitutions; subst != null; subst = subst.parent) {
      if (ExprEquivalence.get().equivalent(subst.expression, expr)) {
        previousType = subst.type;
        break;
      }
    }

    // If the new type is different than the current type, then add a new type substitution.
    if (!entry.getValue().equals(previousType)) {
      substitutions = new TypeSubstitution(substitutions, expr, entry.getValue());
    }
  }
}
 

import com.google.common.base.Equivalence.Wrapper; //导入依赖的package包/类
/**
 * Compute a map which combines the constraints from both the left and right side of an
 * expression. The result should be a set of constraints which satisfy <strong>either</strong>
 * sides.
 *
 * @param left Constraints from the left side.
 * @param right Constraints from the right side.
 * @return The combined constraint.
 */
private Map<Wrapper<ExprNode>, SoyType> computeConstraintIntersection(
    Map<Wrapper<ExprNode>, SoyType> left, Map<Wrapper<ExprNode>, SoyType> right) {
  if (left.isEmpty()) {
    return left;
  }
  if (right.isEmpty()) {
    return right;
  }
  Map<Wrapper<ExprNode>, SoyType> result = Maps.newHashMapWithExpectedSize(left.size());
  for (Map.Entry<Wrapper<ExprNode>, SoyType> entry : left.entrySet()) {
    // A variable must be present in both the left and right sides in order to be
    // included in the output.
    if (right.containsKey(entry.getKey())) {
      // The intersection of two constraints is a *looser* constraint.
      // Thus "((a instanceof any) OR (a instanceof bool)) == (a instanceof any)"
      SoyType rightSideType = right.get(entry.getKey());
      result.put(
          entry.getKey(),
          SoyTypes.computeLowestCommonType(typeRegistry, entry.getValue(), rightSideType));
    }
  }
  return result;
}
 

import com.google.common.base.Equivalence.Wrapper; //导入依赖的package包/类
private void assertEquivalent(ExprNode left, ExprNode right) {
  Wrapper<ExprNode> wrappedLeft = ExprEquivalence.get().wrap(left);
  Wrapper<ExprNode> wrappedRight = ExprEquivalence.get().wrap(right);
  assertThat(wrappedLeft).isEqualTo(wrappedRight);
  // Test symmetry
  assertThat(wrappedRight).isEqualTo(wrappedLeft);

  assertThat(wrappedLeft.hashCode()).isEqualTo(wrappedRight.hashCode());

  // If two expressions are equal, then all subexpressions must also be equal
  if (left instanceof ParentExprNode) {
    List<ExprNode> leftChildren = ((ParentExprNode) left).getChildren();
    List<ExprNode> rightChildren = ((ParentExprNode) right).getChildren();
    for (int i = 0; i < leftChildren.size(); i++) {
      assertEquivalent(leftChildren.get(i), rightChildren.get(i));
    }
  }
}
 

import com.google.common.base.Equivalence.Wrapper; //导入依赖的package包/类
private static <T> Map<Wrapper<Method>, WeaklyTypeReferencingMethod<?, ?>> collectPublicViewImplMethods(StructSchema<T> publicSchema) {
    return indexBySignature(
        Sets.filter(
            publicSchema.getAllMethods(),
            new Predicate<WeaklyTypeReferencingMethod<?, ?>>() {
                @Override
                public boolean apply(WeaklyTypeReferencingMethod<?, ?> weakMethod) {
                    return !Modifier.isAbstract(weakMethod.getModifiers());
                }
            }
        )
    );
}
 

import com.google.common.base.Equivalence.Wrapper; //导入依赖的package包/类
private static ImmutableMap<Wrapper<Method>, WeaklyTypeReferencingMethod<?, ?>> indexBySignature(Iterable<WeaklyTypeReferencingMethod<?, ?>> methods) {
    return Maps.uniqueIndex(methods, new Function<WeaklyTypeReferencingMethod<?, ?>, Wrapper<Method>>() {
        @Override
        public Wrapper<Method> apply(WeaklyTypeReferencingMethod<?, ?> weakMethod) {
            return SIGNATURE_EQUIVALENCE.wrap(weakMethod.getMethod());
        }
    });
}
 

import com.google.common.base.Equivalence.Wrapper; //导入依赖的package包/类
private static Collection<WeaklyTypeReferencingMethod<?, ?>> collectImplementedMethods(Iterable<StructSchema<?>> implementedSchemas) {
    Map<Wrapper<Method>, WeaklyTypeReferencingMethod<?, ?>> implementedMethodsBuilder = Maps.newLinkedHashMap();
    for (StructSchema<?> implementedSchema : implementedSchemas) {
        for (WeaklyTypeReferencingMethod<?, ?> viewMethod : implementedSchema.getAllMethods()) {
            implementedMethodsBuilder.put(DESCRIPTOR_EQUIVALENCE.wrap(viewMethod.getMethod()), viewMethod);
        }
    }
    return implementedMethodsBuilder.values();
}
 

import com.google.common.base.Equivalence.Wrapper; //导入依赖的package包/类
private Set<Wrapper<DexMethod>> computeMethodsOnMessageType() {
  DexClass messageClass = appInfo.definitionFor(messageType);
  if (messageClass == null) {
    return Collections.emptySet();
  }
  Set<Wrapper<DexMethod>> superMethods = new HashSet<>();
  messageClass.forEachMethod(method -> superMethods.add(equivalence.wrap(method.method)));
  return superMethods;
}
 

import com.google.common.base.Equivalence.Wrapper; //导入依赖的package包/类
private void markMatchingVisibleMethods(DexClass clazz,
    Collection<ProguardMemberRule> memberKeepRules, ProguardConfigurationRule rule,
    DexType onlyIfClassKept) {
  Set<Wrapper<DexMethod>> methodsMarked = new HashSet<>();
  Arrays.stream(clazz.directMethods()).forEach(method ->
      markMethod(method, memberKeepRules, rule, methodsMarked, onlyIfClassKept));
  while (clazz != null) {
    Arrays.stream(clazz.virtualMethods()).forEach(method ->
        markMethod(method, memberKeepRules, rule, methodsMarked, onlyIfClassKept));
    clazz = application.definitionFor(clazz.superType);
  }
}
 

import com.google.common.base.Equivalence.Wrapper; //导入依赖的package包/类
private void addProgramMethods(Set<Wrapper<DexMethod>> set, DexMethod method,
    Equivalence<DexMethod> equivalence) {
  DexClass definition = appInfo.definitionFor(method.holder);
  if (definition != null && definition.isProgramClass()) {
    set.add(equivalence.wrap(method));
  }
}
 

import com.google.common.base.Equivalence.Wrapper; //导入依赖的package包/类
private Collection<DexMethod> getInvokes() {
  if (invokes == null) {
    // Collect all reachable methods that are not within a library class. Those defined on
    // library classes are known not to have program classes in their signature.
    // Also filter methods that only use types from library classes in their signatures. We
    // know that those won't conflict.
    Set<Wrapper<DexMethod>> filteredInvokes = new HashSet<>();
    Equivalence<DexMethod> equivalence = MethodSignatureEquivalence.get();
    appInfo.targetedMethods.forEach(m -> addProgramMethods(filteredInvokes, m, equivalence));
    invokes = filteredInvokes.stream().map(Wrapper::get).filter(this::removeNonProgram)
        .collect(Collectors.toList());
  }
  return invokes;
}