Package org.eolang.jeo.representation.bytecode

Class BytecodeClass

java.lang.Object
org.eolang.jeo.representation.bytecode.BytecodeClass
All Implemented Interfaces:
Testable
public final class BytecodeClass extends Object implements Testable
Class useful for generating bytecode for testing purposes.
Since:
0.1.0

  • Constructor Details

    • BytecodeClass

      public BytecodeClass()
      Constructor. Used in tests only.

    • BytecodeClass

      public BytecodeClass(String name)
      Constructor. Used in tests only.
      Parameters:
      name - Class name.

    • BytecodeClass

      public BytecodeClass(String name, int access)
      Constructor. Used in tests only.
      Parameters:
      name - Class name.
      access - Access modifiers.

    • BytecodeClass

      public BytecodeClass(String name, BytecodeClassProperties properties)
      Constructor. Used in tests only.
      Parameters:
      name - Class name.
      properties - Class properties.

    • BytecodeClass

      public BytecodeClass(String name, BytecodeClassProperties properties, boolean verify)
      Constructor. Has real usages.
      Parameters:
      name - Class name.
      properties - Class properties.
      verify - Verify bytecode.

    • BytecodeClass

      public BytecodeClass(String name, CustomClassWriter writer, Collection<BytecodeMethod> methods, BytecodeClassProperties properties)
      Constructor.
      Parameters:
      name - Class name.
      writer - ASM class writer.
      methods - Methods.
      properties - Class properties.

  • Method Details

    • xml

      public com.jcabi.xml.XML xml()
      Converts bytecode into XML.
      Returns:
      XML representation of bytecode.

    • bytecode

      public Bytecode bytecode()
      Generate bytecode.

      In this method we intentionally use the Thread.currentThread().getContextClassLoader() for the class loader of the CheckClassAdapter.verify(ClassReader, ClassLoader, boolean, PrintWriter) instead of default implementation. This is because the default class loader doesn't know about classes compiled on the previous maven step. You can read more about the problem here: PluginStartup.init() ()}

      Returns:
      Bytecode.

    • withConstructor

      public BytecodeMethod withConstructor(int... modifiers)
      Add constructor.
      Parameters:
      modifiers - Constructor modifiers.
      Returns:
      This object.

    • withMethod

      public BytecodeMethod withMethod(BytecodeMethodProperties properties)
      Add method.
      Parameters:
      properties - Method properties.
      Returns:
      This object.

    • withMethod

      public BytecodeMethod withMethod(BytecodeMethodProperties properties, int stack, int locals)
      Add method.
      Parameters:
      properties - Method properties.
      stack - Stack size.
      locals - Local variables size.
      Returns:
      This object.

    • withConstructor

      public BytecodeMethod withConstructor(String descriptor, int... modifiers)
      Add constructor.
      Parameters:
      descriptor - Constructor descriptor.
      modifiers - Constructor modifiers.
      Returns:
      This object.

    • withMethod

      public BytecodeMethod withMethod(String mname, String descriptor, int... modifiers)
      Add method.
      Parameters:
      mname - Method name.
      descriptor - Method descriptor.
      modifiers - Access modifiers.
      Returns:
      This object.

    • withField

      public BytecodeClass withField(String fname)
      Add field.
      Parameters:
      fname - Field name.
      Returns:
      This object.

    • withAttribute

      public BytecodeClass withAttribute(BytecodeAttribute attribute)
      Add attribute.
      Parameters:
      attribute - Attribute.
      Returns:
      This object.

    • withField

      public BytecodeField withField(String fname, String descriptor, String signature, Object value, int... modifiers)
      Add field.
      Parameters:
      fname - Field name.
      descriptor - Field descriptor.
      signature - Field signature.
      value - Field value.
      modifiers - Access modifiers.
      Returns:
      This object.

    • withAnnotations

      public BytecodeClass withAnnotations(XmlAnnotations all)
      Add anns.
      Parameters:
      all - Annotations.
      Returns:
      This object.

    • testCode

      public String testCode()
      Description copied from interface: Testable
      Generate test Java code.
      Specified by:
      testCode in interface Testable
      Returns:
      Java code.

    • helloWorldMethod

      public BytecodeClass helloWorldMethod()
      Hello world bytecode.
      Returns:
      The same class with the hello world method.