程序包 cn.taketoday.bytecode.tree

类 Comment

java.lang.Object
cn.taketoday.bytecode.Attribute
cn.taketoday.bytecode.tree.Comment
public class Comment extends Attribute
A non standard attribute used for testing purposes.
作者:
Eric Bruneton

  • 构造器详细资料

    • Comment

      public Comment()

  • 方法详细资料

    • isUnknown

      public boolean isUnknown()
      从类复制的说明: Attribute
      Returns true if this type of attribute is unknown. This means that the attribute content can't be parsed to extract constant pool references, labels, etc. Instead, the attribute content is read as an opaque byte array, and written back as is. This can lead to invalid attributes, if the content actually contains constant pool references, labels, or other symbolic references that need to be updated when there are changes to the constant pool, the method bytecode, etc. The default implementation of this method always returns true.
      覆盖:
      isUnknown 在类中 Attribute
      返回:
      true if this type of attribute is unknown.

    • read

      protected Attribute read(ClassReader classReader, int offset, int length, char[] charBuffer, int codeAttributeOffset, Label[] labels)
      从类复制的说明: Attribute
      Reads a Attribute.type attribute. This method must return a new Attribute object, of type Attribute.type, corresponding to the 'length' bytes starting at 'offset', in the given ClassReader.
      覆盖:
      read 在类中 Attribute
      参数:
      classReader - the class that contains the attribute to be read.
      offset - index of the first byte of the attribute's content in ClassReader. The 6 attribute header bytes (attribute_name_index and attribute_length) are not taken into account here.
      length - the length of the attribute's content (excluding the 6 attribute header bytes).
      charBuffer - the buffer to be used to call the ClassReader methods requiring a 'charBuffer' parameter.
      codeAttributeOffset - index of the first byte of content of the enclosing Code attribute in ClassReader, or -1 if the attribute to be read is not a Code attribute. The 6 attribute header bytes (attribute_name_index and attribute_length) are not taken into account here.
      labels - the labels of the method's code, or null if the attribute to be read is not a Code attribute.
      返回:
      a new Attribute object corresponding to the specified bytes.

    • write

      protected ByteVector write(ClassWriter classWriter, byte[] code, int codeLength, int maxStack, int maxLocals)
      从类复制的说明: Attribute
      Returns the byte array form of the content of this attribute. The 6 header bytes (attribute_name_index and attribute_length) must not be added in the returned ByteVector.
      覆盖:
      write 在类中 Attribute
      参数:
      classWriter - the class to which this attribute must be added. This parameter can be used to add the items that corresponds to this attribute to the constant pool of this class.
      code - the bytecode of the method corresponding to this Code attribute, or null if this attribute is not a Code attribute. Corresponds to the 'code' field of the Code attribute.
      codeLength - the length of the bytecode of the method corresponding to this code attribute, or 0 if this attribute is not a Code attribute. Corresponds to the 'code_length' field of the Code attribute.
      maxStack - the maximum stack size of the method corresponding to this Code attribute, or -1 if this attribute is not a Code attribute.
      maxLocals - the maximum number of local variables of the method corresponding to this code attribute, or -1 if this attribute is not a Code attribute.
      返回:
      the byte array form of this attribute.