https://github.com/jruby/jruby/jruby-core: JRuby is the effort to recreate the Ruby (https://www.ruby-lang.org) interpreter in Java. (JRuby)
  • headius
  • enebo
  • wmeissner
  • BanzaiMan
  • mkristian 
public final class org.jruby.MetaClass extends org.jruby.RubyClass
  minor version: 0
  major version: 59
  flags: flags: (0x0031) ACC_PUBLIC, ACC_FINAL, ACC_SUPER
  this_class: org.jruby.MetaClass
  super_class: org.jruby.RubyClass
{
  private org.jruby.RubyBasicObject attached;
    descriptor: Lorg/jruby/RubyBasicObject;
    flags: (0x0002) ACC_PRIVATE

  private static final org.jruby.util.log.Logger LOG;
    descriptor: Lorg/jruby/util/log/Logger;
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL

  private static final boolean LOG_SINGLETONS;
    descriptor: Z
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL

  private static final boolean LOG_SINGLETONS_VERBOSE;
    descriptor: Z
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=1, locals=0, args_size=0
         0: .line 125
            ldc Lorg/jruby/MetaClass;
            invokestatic org.jruby.util.log.LoggerFactory.getLogger:(Ljava/lang/Class;)Lorg/jruby/util/log/Logger;
            putstatic org.jruby.MetaClass.LOG:Lorg/jruby/util/log/Logger;
         1: .line 126
            getstatic org.jruby.util.cli.Options.LOG_SINGLETONS:Lcom/headius/options/Option;
            invokevirtual com.headius.options.Option.load:()Ljava/lang/Object;
            checkcast java.lang.Boolean
            invokevirtual java.lang.Boolean.booleanValue:()Z
            putstatic org.jruby.MetaClass.LOG_SINGLETONS:Z
         2: .line 127
            getstatic org.jruby.util.cli.Options.LOG_SINGLETONS_VERBOSE:Lcom/headius/options/Option;
            invokevirtual com.headius.options.Option.load:()Ljava/lang/Object;
            checkcast java.lang.Boolean
            invokevirtual java.lang.Boolean.booleanValue:()Z
            putstatic org.jruby.MetaClass.LOG_SINGLETONS_VERBOSE:Z
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  public void <init>(org.jruby.Ruby, org.jruby.RubyClass, org.jruby.runtime.builtin.IRubyObject);
    descriptor: (Lorg/jruby/Ruby;Lorg/jruby/RubyClass;Lorg/jruby/runtime/builtin/IRubyObject;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=4, args_size=4
        start local 0 // org.jruby.MetaClass this
        start local 1 // org.jruby.Ruby runtime
        start local 2 // org.jruby.RubyClass superClass
        start local 3 // org.jruby.runtime.builtin.IRubyObject attached
         0: .line 42
            aload 0 /* this */
            aload 1 /* runtime */
            aload 2 /* superClass */
            aload 3 /* attached */
            checkcast org.jruby.RubyBasicObject
            invokespecial org.jruby.MetaClass.<init>:(Lorg/jruby/Ruby;Lorg/jruby/RubyClass;Lorg/jruby/RubyBasicObject;)V
         1: .line 43
            return
        end local 3 // org.jruby.runtime.builtin.IRubyObject attached
        end local 2 // org.jruby.RubyClass superClass
        end local 1 // org.jruby.Ruby runtime
        end local 0 // org.jruby.MetaClass this
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0    2     0        this  Lorg/jruby/MetaClass;
            0    2     1     runtime  Lorg/jruby/Ruby;
            0    2     2  superClass  Lorg/jruby/RubyClass;
            0    2     3    attached  Lorg/jruby/runtime/builtin/IRubyObject;
    RuntimeVisibleAnnotations: 
      java.lang.Deprecated()
    MethodParameters:
            Name  Flags
      runtime     
      superClass  
      attached    

  void <init>(org.jruby.Ruby, org.jruby.RubyClass, org.jruby.RubyBasicObject);
    descriptor: (Lorg/jruby/Ruby;Lorg/jruby/RubyClass;Lorg/jruby/RubyBasicObject;)V
    flags: (0x0000) 
    Code:
      stack=4, locals=4, args_size=4
        start local 0 // org.jruby.MetaClass this
        start local 1 // org.jruby.Ruby runtime
        start local 2 // org.jruby.RubyClass superClass
        start local 3 // org.jruby.RubyBasicObject attached
         0: .line 49
            aload 0 /* this */
            aload 1 /* runtime */
            aload 2 /* superClass */
            iconst_0
            invokespecial org.jruby.RubyClass.<init>:(Lorg/jruby/Ruby;Lorg/jruby/RubyClass;Z)V
         1: .line 50
            aload 0 /* this */
            aload 3 /* attached */
            putfield org.jruby.MetaClass.attached:Lorg/jruby/RubyBasicObject;
         2: .line 52
            aload 0 /* this */
            aload 2 /* superClass */
            invokevirtual org.jruby.RubyClass.getClassIndex:()Lorg/jruby/runtime/ClassIndex;
            invokevirtual org.jruby.MetaClass.setClassIndex:(Lorg/jruby/runtime/ClassIndex;)V
         3: .line 53
            aload 2 /* superClass */
            aload 0 /* this */
            invokevirtual org.jruby.RubyClass.addSubclass:(Lorg/jruby/RubyClass;)V
         4: .line 55
            getstatic org.jruby.MetaClass.LOG_SINGLETONS:Z
            ifne 5
            getstatic org.jruby.MetaClass.LOG_SINGLETONS_VERBOSE:Z
            ifeq 6
         5: .line 56
      StackMap locals: org.jruby.MetaClass org.jruby.Ruby org.jruby.RubyClass org.jruby.RubyBasicObject
      StackMap stack:
            aload 1 /* runtime */
            aload 2 /* superClass */
            aload 3 /* attached */
            invokestatic org.jruby.MetaClass.logSingleton:(Lorg/jruby/Ruby;Lorg/jruby/RubyClass;Lorg/jruby/RubyBasicObject;)V
         6: .line 58
      StackMap locals:
      StackMap stack:
            return
        end local 3 // org.jruby.RubyBasicObject attached
        end local 2 // org.jruby.RubyClass superClass
        end local 1 // org.jruby.Ruby runtime
        end local 0 // org.jruby.MetaClass this
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0    7     0        this  Lorg/jruby/MetaClass;
            0    7     1     runtime  Lorg/jruby/Ruby;
            0    7     2  superClass  Lorg/jruby/RubyClass;
            0    7     3    attached  Lorg/jruby/RubyBasicObject;
    MethodParameters:
            Name  Flags
      runtime     
      superClass  
      attached    

  private static void logSingleton(org.jruby.Ruby, org.jruby.RubyClass, org.jruby.RubyBasicObject);
    descriptor: (Lorg/jruby/Ruby;Lorg/jruby/RubyClass;Lorg/jruby/RubyBasicObject;)V
    flags: (0x000a) ACC_PRIVATE, ACC_STATIC
    Code:
      stack=4, locals=4, args_size=3
        start local 0 // org.jruby.Ruby runtime
        start local 1 // org.jruby.RubyClass superClass
        start local 2 // org.jruby.RubyBasicObject attached
         0: .line 61
            aload 0 /* runtime */
            invokevirtual org.jruby.Ruby.isBooting:()Z
            ifeq 1
            return
         1: .line 63
      StackMap locals:
      StackMap stack:
            aload 2 /* attached */
            ifnonnull 2
            ldc "null object"
            goto 3
      StackMap locals:
      StackMap stack:
         2: new java.lang.StringBuilder
            dup
            ldc "object of type "
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            aload 2 /* attached */
            invokevirtual org.jruby.RubyBasicObject.getMetaClass:()Lorg/jruby/RubyClass;
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/Object;)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
      StackMap locals:
      StackMap stack: java.lang.String
         3: astore 3 /* attachedString */
        start local 3 // java.lang.String attachedString
         4: .line 64
            getstatic org.jruby.MetaClass.LOG:Lorg/jruby/util/log/Logger;
            new java.lang.StringBuilder
            dup
            ldc "singleton class created for type "
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            aload 1 /* superClass */
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/Object;)Ljava/lang/StringBuilder;
            ldc " attached to "
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            aload 3 /* attachedString */
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            iconst_0
            anewarray java.lang.Object
            invokeinterface org.jruby.util.log.Logger.info:(Ljava/lang/String;[Ljava/lang/Object;)V
         5: .line 66
            getstatic org.jruby.MetaClass.LOG_SINGLETONS_VERBOSE:Z
            ifeq 7
         6: .line 67
            getstatic org.jruby.MetaClass.LOG:Lorg/jruby/util/log/Logger;
            new java.lang.Exception
            dup
            ldc "singleton creation stack trace"
            invokespecial java.lang.Exception.<init>:(Ljava/lang/String;)V
            invokeinterface org.jruby.util.log.Logger.info:(Ljava/lang/Throwable;)V
         7: .line 69
      StackMap locals: java.lang.String
      StackMap stack:
            return
        end local 3 // java.lang.String attachedString
        end local 2 // org.jruby.RubyBasicObject attached
        end local 1 // org.jruby.RubyClass superClass
        end local 0 // org.jruby.Ruby runtime
      LocalVariableTable:
        Start  End  Slot            Name  Signature
            0    8     0         runtime  Lorg/jruby/Ruby;
            0    8     1      superClass  Lorg/jruby/RubyClass;
            0    8     2        attached  Lorg/jruby/RubyBasicObject;
            4    8     3  attachedString  Ljava/lang/String;
    MethodParameters:
            Name  Flags
      runtime     
      superClass  
      attached    

  public final org.jruby.runtime.builtin.IRubyObject allocate();
    descriptor: ()Lorg/jruby/runtime/builtin/IRubyObject;
    flags: (0x0011) ACC_PUBLIC, ACC_FINAL
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // org.jruby.MetaClass this
         0: .line 73
            aload 0 /* this */
            getfield org.jruby.MetaClass.runtime:Lorg/jruby/Ruby;
            ldc "can't create instance of virtual class"
            invokevirtual org.jruby.Ruby.newTypeError:(Ljava/lang/String;)Lorg/jruby/exceptions/RaiseException;
            athrow
        end local 0 // org.jruby.MetaClass this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/jruby/MetaClass;

  public boolean isSingleton();
    descriptor: ()Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.jruby.MetaClass this
         0: .line 78
            iconst_1
            ireturn
        end local 0 // org.jruby.MetaClass this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/jruby/MetaClass;

  public org.jruby.RubyClass makeMetaClass(org.jruby.RubyClass);
    descriptor: (Lorg/jruby/RubyClass;)Lorg/jruby/RubyClass;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=5, locals=3, args_size=2
        start local 0 // org.jruby.MetaClass this
        start local 1 // org.jruby.RubyClass superClass
         0: .line 88
            new org.jruby.MetaClass
            dup
            aload 0 /* this */
            getfield org.jruby.MetaClass.runtime:Lorg/jruby/Ruby;
            aload 0 /* this */
            invokevirtual org.jruby.MetaClass.getSuperSingletonMetaClass:()Lorg/jruby/RubyClass;
            aload 0 /* this */
            invokespecial org.jruby.MetaClass.<init>:(Lorg/jruby/Ruby;Lorg/jruby/RubyClass;Lorg/jruby/RubyBasicObject;)V
            astore 2 /* klass */
        start local 2 // org.jruby.MetaClass klass
         1: .line 89
            aload 0 /* this */
            aload 2 /* klass */
            invokevirtual org.jruby.MetaClass.setMetaClass:(Lorg/jruby/RubyClass;)V
         2: .line 93
            aload 2 /* klass */
            aload 2 /* klass */
            invokevirtual org.jruby.MetaClass.setMetaClass:(Lorg/jruby/RubyClass;)V
         3: .line 95
            aload 2 /* klass */
            areturn
        end local 2 // org.jruby.MetaClass klass
        end local 1 // org.jruby.RubyClass superClass
        end local 0 // org.jruby.MetaClass this
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0    4     0        this  Lorg/jruby/MetaClass;
            0    4     1  superClass  Lorg/jruby/RubyClass;
            1    4     2       klass  Lorg/jruby/MetaClass;
    MethodParameters:
            Name  Flags
      superClass  

  private org.jruby.RubyClass getSuperSingletonMetaClass();
    descriptor: ()Lorg/jruby/RubyClass;
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=1, locals=2, args_size=1
        start local 0 // org.jruby.MetaClass this
         0: .line 99
            aload 0 /* this */
            getfield org.jruby.MetaClass.attached:Lorg/jruby/RubyBasicObject;
            instanceof org.jruby.RubyClass
            ifeq 5
         1: .line 100
            aload 0 /* this */
            getfield org.jruby.MetaClass.attached:Lorg/jruby/RubyBasicObject;
            checkcast org.jruby.RubyClass
            invokevirtual org.jruby.RubyClass.getSuperClass:()Lorg/jruby/RubyClass;
            astore 1 /* superClass */
        start local 1 // org.jruby.RubyClass superClass
         2: .line 101
            aload 1 /* superClass */
            ifnull 3
            aload 1 /* superClass */
            invokevirtual org.jruby.RubyClass.getRealClass:()Lorg/jruby/RubyClass;
            astore 1 /* superClass */
         3: .line 103
      StackMap locals: org.jruby.RubyClass
      StackMap stack:
            aload 1 /* superClass */
            ifnonnull 4
            aload 0 /* this */
            getfield org.jruby.MetaClass.runtime:Lorg/jruby/Ruby;
            invokevirtual org.jruby.Ruby.getClassClass:()Lorg/jruby/RubyClass;
            invokevirtual org.jruby.RubyClass.getSingletonClass:()Lorg/jruby/RubyClass;
            areturn
         4: .line 104
      StackMap locals:
      StackMap stack:
            aload 1 /* superClass */
            invokevirtual org.jruby.RubyClass.getMetaClass:()Lorg/jruby/RubyClass;
            invokevirtual org.jruby.RubyClass.getSingletonClass:()Lorg/jruby/RubyClass;
            areturn
        end local 1 // org.jruby.RubyClass superClass
         5: .line 107
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            invokevirtual org.jruby.MetaClass.getSuperClass:()Lorg/jruby/RubyClass;
            invokevirtual org.jruby.RubyClass.getRealClass:()Lorg/jruby/RubyClass;
            invokevirtual org.jruby.RubyClass.getMetaClass:()Lorg/jruby/RubyClass;
            areturn
        end local 0 // org.jruby.MetaClass this
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0    6     0        this  Lorg/jruby/MetaClass;
            2    5     1  superClass  Lorg/jruby/RubyClass;

  org.jruby.RubyClass toSingletonClass(org.jruby.RubyBasicObject);
    descriptor: (Lorg/jruby/RubyBasicObject;)Lorg/jruby/RubyClass;
    flags: (0x0000) 
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.jruby.MetaClass this
        start local 1 // org.jruby.RubyBasicObject target
         0: .line 112
            aload 0 /* this */
            getfield org.jruby.MetaClass.attached:Lorg/jruby/RubyBasicObject;
            aload 1 /* target */
            if_acmpne 1
            aload 0 /* this */
            goto 2
      StackMap locals:
      StackMap stack:
         1: aload 0 /* this */
            aload 1 /* target */
            invokespecial org.jruby.RubyClass.toSingletonClass:(Lorg/jruby/RubyBasicObject;)Lorg/jruby/RubyClass;
      StackMap locals:
      StackMap stack: org.jruby.RubyClass
         2: areturn
        end local 1 // org.jruby.RubyBasicObject target
        end local 0 // org.jruby.MetaClass this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    3     0    this  Lorg/jruby/MetaClass;
            0    3     1  target  Lorg/jruby/RubyBasicObject;
    MethodParameters:
        Name  Flags
      target  

  public org.jruby.RubyBasicObject getAttached();
    descriptor: ()Lorg/jruby/RubyBasicObject;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.jruby.MetaClass this
         0: .line 116
            aload 0 /* this */
            getfield org.jruby.MetaClass.attached:Lorg/jruby/RubyBasicObject;
            areturn
        end local 0 // org.jruby.MetaClass this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/jruby/MetaClass;

  public void setAttached(org.jruby.RubyBasicObject);
    descriptor: (Lorg/jruby/RubyBasicObject;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.jruby.MetaClass this
        start local 1 // org.jruby.RubyBasicObject attached
         0: .line 120
            aload 0 /* this */
            aload 1 /* attached */
            putfield org.jruby.MetaClass.attached:Lorg/jruby/RubyBasicObject;
         1: .line 121
            return
        end local 1 // org.jruby.RubyBasicObject attached
        end local 0 // org.jruby.MetaClass this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    2     0      this  Lorg/jruby/MetaClass;
            0    2     1  attached  Lorg/jruby/RubyBasicObject;
    MethodParameters:
          Name  Flags
      attached  
}
SourceFile: "MetaClass.java"