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ProGuardCORE is a free library to read, analyze, modify, and write Java class files.
There is a newer version: 9.1.6
/*
 * ProGuardCORE -- library to process Java bytecode.
 *
 * Copyright (c) 2002-2022 Guardsquare NV
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package proguard.classfile.kotlin;

import static proguard.classfile.kotlin.KotlinConstants.METADATA_KIND_CLASS;

import java.util.List;
import proguard.classfile.Clazz;
import proguard.classfile.Field;
import proguard.classfile.kotlin.flags.KotlinClassFlags;
import proguard.classfile.kotlin.visitor.KotlinConstructorVisitor;
import proguard.classfile.kotlin.visitor.KotlinMetadataVisitor;
import proguard.classfile.kotlin.visitor.KotlinTypeParameterVisitor;
import proguard.classfile.kotlin.visitor.KotlinTypeVisitor;
import proguard.classfile.kotlin.visitor.KotlinVersionRequirementVisitor;
import proguard.classfile.visitor.ClassVisitor;
import proguard.classfile.visitor.MemberVisitor;

public class KotlinClassKindMetadata extends KotlinDeclarationContainerMetadata {

  public String className;
  public Clazz referencedClass;

  public List superTypes;

  public String companionObjectName;
  public Clazz referencedCompanionClass;
  public Field referencedCompanionField;

  public List constructors;

  public List enumEntryNames;
  public List referencedEnumEntries;
  public List nestedClassNames;
  public List referencedNestedClasses;
  public List sealedSubclassNames;
  public List referencedSealedSubClasses;

  public Clazz referencedDefaultImplsClass;

  public List typeParameters;

  public List contextReceivers;

  public KotlinVersionRequirementMetadata versionRequirement;

  public KotlinClassFlags flags;

  public String underlyingPropertyName;
  public KotlinTypeMetadata underlyingPropertyType;

  // Extensions.

  // The JVM internal name of the original class this anonymous object is copied from. Refers to the
  // anonymous objects copied from bodies of inline functions to the use site by the Kotlin
  // compiler.
  public String anonymousObjectOriginName;
  public Clazz anonymousObjectOriginClass;

  public KotlinClassKindMetadata(int[] mv, int xi, String xs, String pn) {
    super(METADATA_KIND_CLASS, mv, xi, xs, pn);
  }

  @Override
  public void accept(Clazz clazz, KotlinMetadataVisitor kotlinMetadataVisitor) {
    kotlinMetadataVisitor.visitKotlinClassMetadata(clazz, this);
  }

  public void companionAccept(KotlinMetadataVisitor kotlinMetadataVisitor) {
    if (referencedCompanionClass != null) {
      referencedCompanionClass.kotlinMetadataAccept(kotlinMetadataVisitor);
    }
  }

  public void referencedCompanionFieldAccept(MemberVisitor memberVisitor) {
    if (referencedClass != null && referencedCompanionField != null) {
      referencedCompanionField.accept(referencedClass, memberVisitor);
    }
  }

  public void nestedClassesAccept(boolean visitCompanion, ClassVisitor classVisitor) {
    for (Clazz nestedClazz : referencedNestedClasses) {
      if (!visitCompanion && nestedClazz == referencedCompanionClass) {
        continue;
      }

      if (nestedClazz != null) {
        nestedClazz.accept(classVisitor);
      }
    }
  }

  public void sealedSubclassesAccept(ClassVisitor classVisitor) {
    for (Clazz sealedSubclass : referencedSealedSubClasses) {
      if (sealedSubclass != null) {
        sealedSubclass.accept(classVisitor);
      }
    }
  }

  public void superTypesAccept(Clazz clazz, KotlinTypeVisitor kotlinTypeVisitor) {
    for (KotlinTypeMetadata superType : superTypes) {
      superType.accept(clazz, this, kotlinTypeVisitor);
    }
  }

  public void constructorsAccept(Clazz clazz, KotlinConstructorVisitor kotlinConstructorVisitor) {
    for (KotlinConstructorMetadata constructor : constructors) {
      constructor.accept(clazz, this, kotlinConstructorVisitor);
    }
  }

  public void typeParametersAccept(
      Clazz clazz, KotlinTypeParameterVisitor kotlinTypeParameterVisitor) {
    for (KotlinTypeParameterMetadata typeParameter : typeParameters) {
      typeParameter.accept(clazz, this, kotlinTypeParameterVisitor);
    }
  }

  public void versionRequirementAccept(
      Clazz clazz, KotlinVersionRequirementVisitor kotlinVersionRequirementVisitor) {
    if (versionRequirement != null) {
      versionRequirement.accept(clazz, this, kotlinVersionRequirementVisitor);
    }
  }

  public void inlineClassUnderlyingPropertyTypeAccept(
      Clazz clazz, KotlinTypeVisitor kotlinTypeVisitor) {
    if (underlyingPropertyType != null) {
      underlyingPropertyType.underlyingPropertyTypeAccept(clazz, this, kotlinTypeVisitor);
    }
  }

  public void contextReceiverTypesAccept(Clazz clazz, KotlinTypeVisitor kotlinTypeVisitor) {
    if (contextReceivers != null) {
      for (KotlinTypeMetadata contextReceiver : contextReceivers) {
        kotlinTypeVisitor.visitClassContextReceiverType(clazz, this, contextReceiver);
      }
    }
  }

  // Implementations for Object.
  @Override
  public String toString() {
    return "Kotlin "
        + (companionObjectName != null ? "accompanied " : "")
        + (flags.isUsualClass ? "usual " : "")
        + (flags.isInterface ? "interface " : "")
        + (flags.isObject ? "object " : "")
        + (flags.isData ? "data " : "")
        + (flags.isData ? "data " : "")
        + (flags.isCompanionObject ? "companion object " : "")
        + (flags.isEnumEntry ? "enum entry " : "")
        + "class("
        + className
        + ")";
  }
}