import com.google.javascript.rhino.jstype.UnknownType; //导入依赖的package包/类
/**
 * Expect that the first type is the direct superclass of the second type.
 *
 * @param t The node traversal.
 * @param n The node where warnings should point to.
 * @param superObject The expected super instance type.
 * @param subObject The sub instance type.
 */
void expectSuperType(NodeTraversal t, Node n, ObjectType superObject,
    ObjectType subObject) {
  FunctionType subCtor = subObject.getConstructor();
  ObjectType implicitProto = subObject.getImplicitPrototype();
  ObjectType declaredSuper =
      implicitProto == null ? null : implicitProto.getImplicitPrototype();
  if (declaredSuper != null &&
      !(superObject instanceof UnknownType) &&
      !declaredSuper.isEquivalentTo(superObject)) {
    if (declaredSuper.isEquivalentTo(getNativeType(OBJECT_TYPE))) {
      registerMismatch(superObject, declaredSuper, report(
          t.makeError(n, MISSING_EXTENDS_TAG_WARNING, subObject.toString())));
    } else {
      mismatch(t.getSourceName(), n,
          "mismatch in declaration of superclass type",
          superObject, declaredSuper);
    }

    // Correct the super type.
    if (!subCtor.hasCachedValues()) {
      subCtor.setPrototypeBasedOn(superObject);
    }
  }
}
 

import com.google.javascript.rhino.jstype.UnknownType; //导入依赖的package包/类
/** Returns the type representing the implicit prototype. */
ConcreteInstanceType getImplicitPrototype() {
  if ((prototype == null)
      && (instanceType.getImplicitPrototype() != null)) {
    ObjectType proto = instanceType.getImplicitPrototype();
    if ((proto != instanceType) && !(proto instanceof UnknownType)) {
      prototype = factory.createConcreteInstance(proto);
    }
  }
  return prototype;
}
 

import com.google.javascript.rhino.jstype.UnknownType; //导入依赖的package包/类
/**
 * Expect that the first type is the direct superclass of the second type.
 *
 * @param t The node traversal.
 * @param n The node where warnings should point to.
 * @param superObject The expected super instance type.
 * @param subObject The sub instance type.
 */
void expectSuperType(NodeTraversal t, Node n, ObjectType superObject,
    ObjectType subObject) {
  FunctionType subCtor = subObject.getConstructor();
  ObjectType implicitProto = subObject.getImplicitPrototype();
  ObjectType declaredSuper =
      implicitProto == null ? null : implicitProto.getImplicitPrototype();
  if (declaredSuper != null && declaredSuper.isTemplatizedType()) {
    declaredSuper =
        declaredSuper.toMaybeTemplatizedType().getReferencedType();
  }
  if (declaredSuper != null &&
      !(superObject instanceof UnknownType) &&
      !declaredSuper.isEquivalentTo(superObject)) {
    if (declaredSuper.isEquivalentTo(getNativeType(OBJECT_TYPE))) {
      TypeMismatch.registerMismatch(this.mismatches, this.implicitInterfaceUses,
          superObject, declaredSuper,
          report(t.makeError(n, MISSING_EXTENDS_TAG_WARNING, subObject.toString())));
    } else {
      mismatch(n, "mismatch in declaration of superclass type",
          superObject, declaredSuper);
    }

    // Correct the super type.
    if (!subCtor.hasCachedValues()) {
      subCtor.setPrototypeBasedOn(superObject);
    }
  }
}
 

import com.google.javascript.rhino.jstype.UnknownType; //导入依赖的package包/类
/**
 * Expect that the first type is the direct superclass of the second type.
 *
 * @param t The node traversal.
 * @param n The node where warnings should point to.
 * @param superObject The expected super instance type.
 * @param subObject The sub instance type.
 */
void expectSuperType(NodeTraversal t, Node n, ObjectType superObject,
    ObjectType subObject) {
  FunctionType subCtor = subObject.getConstructor();
  ObjectType implicitProto = subObject.getImplicitPrototype();
  ObjectType declaredSuper =
      implicitProto == null ? null : implicitProto.getImplicitPrototype();
  if (declaredSuper != null && declaredSuper.isTemplatizedType()) {
    declaredSuper =
        declaredSuper.toMaybeTemplatizedType().getReferencedType();
  }
  if (declaredSuper != null &&
      !(superObject instanceof UnknownType) &&
      !declaredSuper.isEquivalentTo(superObject)) {
    if (declaredSuper.isEquivalentTo(getNativeType(OBJECT_TYPE))) {
      registerMismatch(superObject, declaredSuper, report(
          t.makeError(n, MISSING_EXTENDS_TAG_WARNING, subObject.toString())));
    } else {
      mismatch(t.getSourceName(), n,
          "mismatch in declaration of superclass type",
          superObject, declaredSuper);
    }

    // Correct the super type.
    if (!subCtor.hasCachedValues()) {
      subCtor.setPrototypeBasedOn(superObject);
    }
  }
}
 

import com.google.javascript.rhino.jstype.UnknownType; //导入依赖的package包/类
ConcreteInstanceType(Factory factory, ObjectType instanceType) {
  this.factory = factory;
  this.instanceType = instanceType;

  Preconditions.checkArgument(!(instanceType instanceof UnknownType));
}