JDK7 BC for https://github.com/rkh/presentations/raw/method-dispatch/example/example.rb

examble.bc

// class version 51.0 (51)
// access flags 0x21
public class example extends org/jruby/ast/executable/AbstractScript  {

  // compiled from: example.rb
  // debug info: /home/tim/example.rb

  // access flags 0x100A
  private static setPosition(Lorg/jruby/runtime/ThreadContext;I)V
    ALOAD 0
    LDC "example.rb"
    ILOAD 1
    INVOKEVIRTUAL org/jruby/runtime/ThreadContext.setFileAndLine (Ljava/lang/String;I)V
    RETURN
    MAXSTACK = 3
    MAXLOCALS = 2

  // access flags 0x1
  public <init>()V
    ALOAD 0
    INVOKESPECIAL org/jruby/ast/executable/AbstractScript.<init> ()V
    ALOAD 0
    LDC "example.rb"
    PUTFIELD example.filename : Ljava/lang/String;
    ALOAD 0
    NEW org/jruby/ast/executable/RuntimeCache
    DUP
    INVOKESPECIAL org/jruby/ast/executable/RuntimeCache.<init> ()V
    PUTFIELD org/jruby/ast/executable/AbstractScript.runtimeCache : Lorg/jruby/ast/executable/RuntimeCache;
    ALOAD 0
    LDC "\uffff\u0002\u0000\u0000\u0000\u0001\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000"
    INVOKEVIRTUAL org/jruby/ast/executable/AbstractScript.initFromDescriptor (Ljava/lang/String;)V
    RETURN
    MAXSTACK = 3
    MAXLOCALS = 1

  // access flags 0x9
  public static __file__(Lexample;Lorg/jruby/runtime/ThreadContext;Lorg/jruby/runtime/builtin/IRubyObject;[Lorg/jruby/runtime/builtin/IRubyObject;Lorg/jruby/runtime/Block;)Lorg/jruby/runtime/builtin/IRubyObject;
  @Lorg/jruby/anno/JRubyMethod;(name="__file__", frame=true, required=0, optional=0, rest=-2)
   L0
    LINENUMBER 1 L0
    ALOAD 0
    ALOAD 1
    ALOAD 2
    GETSTATIC org/jruby/runtime/Block.NULL_BLOCK : Lorg/jruby/runtime/Block;
    INVOKESTATIC example.class_0$RUBY$DeepThought (Lexample;Lorg/jruby/runtime/ThreadContext;Lorg/jruby/runtime/builtin/IRubyObject;Lorg/jruby/runtime/Block;)Lorg/jruby/runtime/builtin/IRubyObject;
    POP
   L1
    LINENUMBER 7 L1
    ALOAD 1
    ALOAD 2
    ALOAD 1
    ALOAD 2
    ALOAD 0
    ALOAD 1
    LDC "DeepThought"
    INVOKEVIRTUAL example.getConstant0 (Lorg/jruby/runtime/ThreadContext;Ljava/lang/String;)Lorg/jruby/runtime/builtin/IRubyObject;
    LDC "new"
    INVOKEDYNAMIC call (Lorg/jruby/runtime/ThreadContext;Lorg/jruby/runtime/builtin/IRubyObject;Lorg/jruby/runtime/builtin/IRubyObject;Ljava/lang/String;)Lorg/jruby/runtime/builtin/IRubyObject; [org/jruby/runtime/invokedynamic/InvocationLinker.invocationBootstrap(Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/invoke/MethodType;)Ljava/lang/invoke/CallSite; (6)]
    LDC "ultimate_answer?"
    ALOAD 1
    INVOKEDYNAMIC getFixnum (Lorg/jruby/runtime/ThreadContext;)Lorg/jruby/RubyFixnum; [org/jruby/runtime/invokedynamic/InvokeDynamicSupport.getFixnumBootstrap(Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/invoke/MethodType;J)Ljava/lang/invoke/CallSite; (6), 42]
    INVOKEDYNAMIC call (Lorg/jruby/runtime/ThreadContext;Lorg/jruby/runtime/builtin/IRubyObject;Lorg/jruby/runtime/builtin/IRubyObject;Ljava/lang/String;Lorg/jruby/runtime/builtin/IRubyObject;)Lorg/jruby/runtime/builtin/IRubyObject; [org/jruby/runtime/invokedynamic/InvocationLinker.invocationBootstrap(Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/invoke/MethodType;)Ljava/lang/invoke/CallSite; (6)]
    ARETURN
    MAXSTACK = 7
    MAXLOCALS = 5

  // access flags 0x1
  public __file__(Lorg/jruby/runtime/ThreadContext;Lorg/jruby/runtime/builtin/IRubyObject;[Lorg/jruby/runtime/builtin/IRubyObject;Lorg/jruby/runtime/Block;)Lorg/jruby/runtime/builtin/IRubyObject;
    ALOAD 0
    ALOAD 1
    ALOAD 2
    ALOAD 3
    ALOAD 4
    INVOKESTATIC example.__file__ (Lexample;Lorg/jruby/runtime/ThreadContext;Lorg/jruby/runtime/builtin/IRubyObject;[Lorg/jruby/runtime/builtin/IRubyObject;Lorg/jruby/runtime/Block;)Lorg/jruby/runtime/builtin/IRubyObject;
    ARETURN
    MAXSTACK = 5
    MAXLOCALS = 5

  // access flags 0x9
  public static class_0$RUBY$DeepThought(Lexample;Lorg/jruby/runtime/ThreadContext;Lorg/jruby/runtime/builtin/IRubyObject;Lorg/jruby/runtime/Block;)Lorg/jruby/runtime/builtin/IRubyObject;
    TRYCATCHBLOCK L0 L1 L2 null
    ACONST_NULL
    ALOAD 1
    ALOAD 1
    GETFIELD org/jruby/runtime/ThreadContext.nil : Lorg/jruby/runtime/builtin/IRubyObject;
    INVOKESTATIC org/jruby/javasupport/util/RuntimeHelpers.prepareClassNamespace (Lorg/jruby/runtime/ThreadContext;Lorg/jruby/runtime/builtin/IRubyObject;)Lorg/jruby/RubyModule;
    SWAP
    LDC "DeepThought"
    SWAP
    INVOKEVIRTUAL org/jruby/RubyModule.defineOrGetClassUnder (Ljava/lang/String;Lorg/jruby/RubyClass;)Lorg/jruby/RubyClass;
    DUP
    ASTORE 2
    ALOAD 1
    SWAP
    ALOAD 0
    ALOAD 1
    INVOKEDYNAMIC getStaticScope (Lorg/jruby/ast/executable/AbstractScript;Lorg/jruby/runtime/ThreadContext;)Lorg/jruby/parser/StaticScope; [org/jruby/runtime/invokedynamic/InvokeDynamicSupport.getStaticScopeBootstrap(Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/invoke/MethodType;Ljava/lang/String;I)Ljava/lang/invoke/CallSite; (6), ",0,0,-1", 0]
    INVOKEVIRTUAL org/jruby/runtime/ThreadContext.preCompiledClassDummyScope (Lorg/jruby/RubyModule;Lorg/jruby/parser/StaticScope;)V
   L0
    LINENUMBER 2 L0
    ALOAD 1
    ALOAD 2
    ALOAD 0
    LDC "ultimate_answer?"
    LDC "method__1$RUBY$ultimate_answer_p_"
    ALOAD 0
    ALOAD 1
    INVOKEDYNAMIC getStaticScope (Lorg/jruby/ast/executable/AbstractScript;Lorg/jruby/runtime/ThreadContext;)Lorg/jruby/parser/StaticScope; [org/jruby/runtime/invokedynamic/InvokeDynamicSupport.getStaticScopeBootstrap(Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/invoke/MethodType;Ljava/lang/String;I)Ljava/lang/invoke/CallSite; (6), "value,1,0,-1", 1]
    ICONST_1
    LDC "example.rb"
    LDC 1
    GETSTATIC org/jruby/internal/runtime/methods/CallConfiguration.FrameNoneScopeNone : Lorg/jruby/internal/runtime/methods/CallConfiguration;
    LDC "qvalue"
    INVOKESTATIC org/jruby/javasupport/util/RuntimeHelpers.def (Lorg/jruby/runtime/ThreadContext;Lorg/jruby/runtime/builtin/IRubyObject;Ljava/lang/Object;Ljava/lang/String;Ljava/lang/String;Lorg/jruby/parser/StaticScope;ILjava/lang/String;ILorg/jruby/internal/runtime/methods/CallConfiguration;Ljava/lang/String;)Lorg/jruby/runtime/builtin/IRubyObject;
   L1
    ALOAD 1
    INVOKEVIRTUAL org/jruby/runtime/ThreadContext.postCompiledClass ()V
    GOTO L3
   L2
   FRAME FULL [example org/jruby/runtime/ThreadContext org/jruby/RubyClass org/jruby/runtime/Block] [java/lang/Throwable]
    ALOAD 1
    INVOKEVIRTUAL org/jruby/runtime/ThreadContext.postCompiledClass ()V
    ATHROW
   L3
   FRAME SAME1 org/jruby/runtime/builtin/IRubyObject
    ARETURN
    MAXSTACK = 11
    MAXLOCALS = 4

  // access flags 0x9
  public static method__1$RUBY$ultimate_answer_p_(Lexample;Lorg/jruby/runtime/ThreadContext;Lorg/jruby/runtime/builtin/IRubyObject;Lorg/jruby/runtime/builtin/IRubyObject;Lorg/jruby/runtime/Block;)Lorg/jruby/runtime/builtin/IRubyObject;
  @Lorg/jruby/anno/JRubyMethod;(name="ultimate_answer?", frame=true, required=1, optional=0, rest=-1)
    ALOAD 3
    ASTORE 9
   L0
    LINENUMBER 3 L0
    ALOAD 1
    ALOAD 2
    ALOAD 1
    ALOAD 2
    ALOAD 9
    LDC "to_s"
    INVOKEDYNAMIC call (Lorg/jruby/runtime/ThreadContext;Lorg/jruby/runtime/builtin/IRubyObject;Lorg/jruby/runtime/builtin/IRubyObject;Ljava/lang/String;)Lorg/jruby/runtime/builtin/IRubyObject; [org/jruby/runtime/invokedynamic/InvocationLinker.invocationBootstrap(Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/invoke/MethodType;)Ljava/lang/invoke/CallSite; (6)]
    LDC "=="
    ALOAD 1
    INVOKEDYNAMIC getString (Lorg/jruby/runtime/ThreadContext;)Lorg/jruby/RubyString; [org/jruby/runtime/invokedynamic/InvokeDynamicSupport.getStringBootstrap(Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/invoke/MethodType;Ljava/lang/String;Ljava/lang/String;I)Ljava/lang/invoke/CallSite; (6), "42", "ASCII-8BIT", 32]
    INVOKEDYNAMIC call (Lorg/jruby/runtime/ThreadContext;Lorg/jruby/runtime/builtin/IRubyObject;Lorg/jruby/runtime/builtin/IRubyObject;Ljava/lang/String;Lorg/jruby/runtime/builtin/IRubyObject;)Lorg/jruby/runtime/builtin/IRubyObject; [org/jruby/runtime/invokedynamic/InvocationLinker.invocationBootstrap(Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/invoke/MethodType;)Ljava/lang/invoke/CallSite; (6)]
    ARETURN
   L1
    LOCALVARIABLE value Lorg/jruby/runtime/builtin/IRubyObject; L0 L1 9
    MAXSTACK = 6
    MAXLOCALS = 10

  // access flags 0x1009
  public static method__1$RUBY$ultimate_answer_p_(Lexample;Lorg/jruby/runtime/ThreadContext;Lorg/jruby/runtime/builtin/IRubyObject;[Lorg/jruby/runtime/builtin/IRubyObject;Lorg/jruby/runtime/Block;)Lorg/jruby/runtime/builtin/IRubyObject;
    ALOAD 1
    ALOAD 3
    ICONST_1
    INVOKESTATIC org/jruby/javasupport/util/RuntimeHelpers.checkArgumentCount (Lorg/jruby/runtime/ThreadContext;[Lorg/jruby/runtime/builtin/IRubyObject;I)V
    ALOAD 0
    ALOAD 1
    ALOAD 2
    ALOAD 3
    LDC 0
    AALOAD
    ALOAD 4
    INVOKESTATIC example.method__1$RUBY$ultimate_answer_p_ (Lexample;Lorg/jruby/runtime/ThreadContext;Lorg/jruby/runtime/builtin/IRubyObject;Lorg/jruby/runtime/builtin/IRubyObject;Lorg/jruby/runtime/Block;)Lorg/jruby/runtime/builtin/IRubyObject;
    ARETURN
    MAXSTACK = 5
    MAXLOCALS = 5

  // access flags 0x9
  public static class_0$RUBY$DeepThought(Lexample;Lorg/jruby/runtime/ThreadContext;Lorg/jruby/runtime/builtin/IRubyObject;[Lorg/jruby/runtime/builtin/IRubyObject;Lorg/jruby/runtime/Block;)Lorg/jruby/runtime/builtin/IRubyObject;
    ALOAD 1
    INVOKEVIRTUAL org/jruby/runtime/ThreadContext.getRuntime ()Lorg/jruby/Ruby;
    ALOAD 3
    ICONST_0
    ICONST_0
    INVOKESTATIC org/jruby/runtime/Arity.checkArgumentCount (Lorg/jruby/Ruby;[Lorg/jruby/runtime/builtin/IRubyObject;II)I
    POP
    ALOAD 0
    ALOAD 1
    ALOAD 2
    ALOAD 4
    INVOKESTATIC example.class_0$RUBY$DeepThought (Lexample;Lorg/jruby/runtime/ThreadContext;Lorg/jruby/runtime/builtin/IRubyObject;Lorg/jruby/runtime/Block;)Lorg/jruby/runtime/builtin/IRubyObject;
    ARETURN
    MAXSTACK = 4
    MAXLOCALS = 5
}