https://www.graalvm.org/ 
final class com.oracle.truffle.polyglot.PolyglotReferences
  minor version: 0
  major version: 59
  flags: flags: (0x0030) ACC_FINAL, ACC_SUPER
  this_class: com.oracle.truffle.polyglot.PolyglotReferences
  super_class: java.lang.Object
{
  static final boolean $assertionsDisabled;
    descriptor: Z
    flags: (0x1018) ACC_STATIC, ACC_FINAL, ACC_SYNTHETIC

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=1, locals=0, args_size=0
         0: .line 58
            ldc Lcom/oracle/truffle/polyglot/PolyglotReferences;
            invokevirtual java.lang.Class.desiredAssertionStatus:()Z
            ifne 1
            iconst_1
            goto 2
      StackMap locals:
      StackMap stack:
         1: iconst_0
      StackMap locals:
      StackMap stack: int
         2: putstatic com.oracle.truffle.polyglot.PolyglotReferences.$assertionsDisabled:Z
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  private void <init>();
    descriptor: ()V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.oracle.truffle.polyglot.PolyglotReferences this
         0: .line 60
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 62
            return
        end local 0 // com.oracle.truffle.polyglot.PolyglotReferences this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lcom/oracle/truffle/polyglot/PolyglotReferences;

  static com.oracle.truffle.polyglot.PolyglotReferences$AbstractContextReference createAlwaysSingleContext(com.oracle.truffle.polyglot.PolyglotLanguage, boolean);
    descriptor: (Lcom/oracle/truffle/polyglot/PolyglotLanguage;Z)Lcom/oracle/truffle/polyglot/PolyglotReferences$AbstractContextReference;
    flags: (0x0008) ACC_STATIC
    Code:
      stack=3, locals=2, args_size=2
        start local 0 // com.oracle.truffle.polyglot.PolyglotLanguage language
        start local 1 // boolean strong
         0: .line 65
            iload 1 /* strong */
            ifeq 2
         1: .line 66
            new com.oracle.truffle.polyglot.PolyglotReferences$StrongSingleContext
            dup
            aload 0 /* language */
            invokespecial com.oracle.truffle.polyglot.PolyglotReferences$StrongSingleContext.<init>:(Lcom/oracle/truffle/polyglot/PolyglotLanguage;)V
            areturn
         2: .line 68
      StackMap locals:
      StackMap stack:
            new com.oracle.truffle.polyglot.PolyglotReferences$WeakSingleContext
            dup
            aload 0 /* language */
            invokespecial com.oracle.truffle.polyglot.PolyglotReferences$WeakSingleContext.<init>:(Lcom/oracle/truffle/polyglot/PolyglotLanguage;)V
            areturn
        end local 1 // boolean strong
        end local 0 // com.oracle.truffle.polyglot.PolyglotLanguage language
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    3     0  language  Lcom/oracle/truffle/polyglot/PolyglotLanguage;
            0    3     1    strong  Z
    MethodParameters:
          Name  Flags
      language  
      strong    

  static com.oracle.truffle.polyglot.PolyglotReferences$AbstractContextReference createAssumeSingleContext(com.oracle.truffle.polyglot.PolyglotLanguage, com.oracle.truffle.api.Assumption, com.oracle.truffle.api.Assumption, com.oracle.truffle.api.TruffleLanguage$ContextReference<java.lang.Object>, boolean);
    descriptor: (Lcom/oracle/truffle/polyglot/PolyglotLanguage;Lcom/oracle/truffle/api/Assumption;Lcom/oracle/truffle/api/Assumption;Lcom/oracle/truffle/api/TruffleLanguage$ContextReference;Z)Lcom/oracle/truffle/polyglot/PolyglotReferences$AbstractContextReference;
    flags: (0x0008) ACC_STATIC
    Code:
      stack=7, locals=5, args_size=5
        start local 0 // com.oracle.truffle.polyglot.PolyglotLanguage language
        start local 1 // com.oracle.truffle.api.Assumption validIf0
        start local 2 // com.oracle.truffle.api.Assumption validIf1
        start local 3 // com.oracle.truffle.api.TruffleLanguage$ContextReference fallback
        start local 4 // boolean strong
         0: .line 76
            getstatic com.oracle.truffle.polyglot.PolyglotReferences.$assertionsDisabled:Z
            ifne 2
            aload 3 /* fallback */
            instanceof com.oracle.truffle.polyglot.PolyglotReferences$WeakSingleContext
            ifne 1
            aload 3 /* fallback */
            instanceof com.oracle.truffle.polyglot.PolyglotReferences$StrongSingleContext
            ifeq 2
      StackMap locals:
      StackMap stack:
         1: new java.lang.AssertionError
            dup
            invokespecial java.lang.AssertionError.<init>:()V
            athrow
         2: .line 77
      StackMap locals:
      StackMap stack:
            new com.oracle.truffle.polyglot.PolyglotReferences$AssumeSingleContext
            dup
            aload 0 /* language */
            aload 1 /* validIf0 */
            aload 2 /* validIf1 */
            aload 3 /* fallback */
            iload 4 /* strong */
            invokespecial com.oracle.truffle.polyglot.PolyglotReferences$AssumeSingleContext.<init>:(Lcom/oracle/truffle/polyglot/PolyglotLanguage;Lcom/oracle/truffle/api/Assumption;Lcom/oracle/truffle/api/Assumption;Lcom/oracle/truffle/api/TruffleLanguage$ContextReference;Z)V
            areturn
        end local 4 // boolean strong
        end local 3 // com.oracle.truffle.api.TruffleLanguage$ContextReference fallback
        end local 2 // com.oracle.truffle.api.Assumption validIf1
        end local 1 // com.oracle.truffle.api.Assumption validIf0
        end local 0 // com.oracle.truffle.polyglot.PolyglotLanguage language
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    3     0  language  Lcom/oracle/truffle/polyglot/PolyglotLanguage;
            0    3     1  validIf0  Lcom/oracle/truffle/api/Assumption;
            0    3     2  validIf1  Lcom/oracle/truffle/api/Assumption;
            0    3     3  fallback  Lcom/oracle/truffle/api/TruffleLanguage$ContextReference<Ljava/lang/Object;>;
            0    3     4    strong  Z
    Signature: (Lcom/oracle/truffle/polyglot/PolyglotLanguage;Lcom/oracle/truffle/api/Assumption;Lcom/oracle/truffle/api/Assumption;Lcom/oracle/truffle/api/TruffleLanguage$ContextReference<Ljava/lang/Object;>;Z)Lcom/oracle/truffle/polyglot/PolyglotReferences$AbstractContextReference;
    MethodParameters:
          Name  Flags
      language  
      validIf0  
      validIf1  
      fallback  
      strong    

  static com.oracle.truffle.polyglot.PolyglotReferences$AbstractContextReference createAlwaysMultiContext(com.oracle.truffle.polyglot.PolyglotLanguage);
    descriptor: (Lcom/oracle/truffle/polyglot/PolyglotLanguage;)Lcom/oracle/truffle/polyglot/PolyglotReferences$AbstractContextReference;
    flags: (0x0008) ACC_STATIC
    Code:
      stack=3, locals=1, args_size=1
        start local 0 // com.oracle.truffle.polyglot.PolyglotLanguage language
         0: .line 81
            new com.oracle.truffle.polyglot.PolyglotReferences$MultiContextSupplier
            dup
            aload 0 /* language */
            invokespecial com.oracle.truffle.polyglot.PolyglotReferences$MultiContextSupplier.<init>:(Lcom/oracle/truffle/polyglot/PolyglotLanguage;)V
            areturn
        end local 0 // com.oracle.truffle.polyglot.PolyglotLanguage language
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    1     0  language  Lcom/oracle/truffle/polyglot/PolyglotLanguage;
    MethodParameters:
          Name  Flags
      language  

  static com.oracle.truffle.api.TruffleLanguage$LanguageReference<com.oracle.truffle.api.TruffleLanguage<java.lang.Object>> createAlwaysSingleLanguage(com.oracle.truffle.polyglot.PolyglotLanguage, com.oracle.truffle.polyglot.PolyglotLanguageInstance);
    descriptor: (Lcom/oracle/truffle/polyglot/PolyglotLanguage;Lcom/oracle/truffle/polyglot/PolyglotLanguageInstance;)Lcom/oracle/truffle/api/TruffleLanguage$LanguageReference;
    flags: (0x0008) ACC_STATIC
    Code:
      stack=4, locals=2, args_size=2
        start local 0 // com.oracle.truffle.polyglot.PolyglotLanguage language
        start local 1 // com.oracle.truffle.polyglot.PolyglotLanguageInstance initValue
         0: .line 85
            new com.oracle.truffle.polyglot.PolyglotReferences$SingleLanguage
            dup
            aload 0 /* language */
            aload 1 /* initValue */
            invokespecial com.oracle.truffle.polyglot.PolyglotReferences$SingleLanguage.<init>:(Lcom/oracle/truffle/polyglot/PolyglotLanguage;Lcom/oracle/truffle/polyglot/PolyglotLanguageInstance;)V
            areturn
        end local 1 // com.oracle.truffle.polyglot.PolyglotLanguageInstance initValue
        end local 0 // com.oracle.truffle.polyglot.PolyglotLanguage language
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            0    1     0   language  Lcom/oracle/truffle/polyglot/PolyglotLanguage;
            0    1     1  initValue  Lcom/oracle/truffle/polyglot/PolyglotLanguageInstance;
    Signature: (Lcom/oracle/truffle/polyglot/PolyglotLanguage;Lcom/oracle/truffle/polyglot/PolyglotLanguageInstance;)Lcom/oracle/truffle/api/TruffleLanguage$LanguageReference<Lcom/oracle/truffle/api/TruffleLanguage<Ljava/lang/Object;>;>;
    MethodParameters:
           Name  Flags
      language   
      initValue  

  static com.oracle.truffle.api.TruffleLanguage$LanguageReference<com.oracle.truffle.api.TruffleLanguage<java.lang.Object>> createAssumeSingleLanguage(com.oracle.truffle.polyglot.PolyglotLanguage, com.oracle.truffle.polyglot.PolyglotLanguageInstance, com.oracle.truffle.api.Assumption, com.oracle.truffle.api.TruffleLanguage$LanguageReference<com.oracle.truffle.api.TruffleLanguage<java.lang.Object>>);
    descriptor: (Lcom/oracle/truffle/polyglot/PolyglotLanguage;Lcom/oracle/truffle/polyglot/PolyglotLanguageInstance;Lcom/oracle/truffle/api/Assumption;Lcom/oracle/truffle/api/TruffleLanguage$LanguageReference;)Lcom/oracle/truffle/api/TruffleLanguage$LanguageReference;
    flags: (0x0008) ACC_STATIC
    Code:
      stack=6, locals=4, args_size=4
        start local 0 // com.oracle.truffle.polyglot.PolyglotLanguage language
        start local 1 // com.oracle.truffle.polyglot.PolyglotLanguageInstance initValue
        start local 2 // com.oracle.truffle.api.Assumption validIf
        start local 3 // com.oracle.truffle.api.TruffleLanguage$LanguageReference fallback
         0: .line 92
            getstatic com.oracle.truffle.polyglot.PolyglotReferences.$assertionsDisabled:Z
            ifne 1
            aload 3 /* fallback */
            instanceof com.oracle.truffle.polyglot.PolyglotReferences$SingleLanguage
            ifeq 1
            new java.lang.AssertionError
            dup
            invokespecial java.lang.AssertionError.<init>:()V
            athrow
         1: .line 93
      StackMap locals:
      StackMap stack:
            new com.oracle.truffle.polyglot.PolyglotReferences$AssumeSingleLanguage
            dup
            aload 0 /* language */
            aload 1 /* initValue */
            aload 2 /* validIf */
            aload 3 /* fallback */
            invokespecial com.oracle.truffle.polyglot.PolyglotReferences$AssumeSingleLanguage.<init>:(Lcom/oracle/truffle/polyglot/PolyglotLanguage;Lcom/oracle/truffle/polyglot/PolyglotLanguageInstance;Lcom/oracle/truffle/api/Assumption;Lcom/oracle/truffle/api/TruffleLanguage$LanguageReference;)V
            areturn
        end local 3 // com.oracle.truffle.api.TruffleLanguage$LanguageReference fallback
        end local 2 // com.oracle.truffle.api.Assumption validIf
        end local 1 // com.oracle.truffle.polyglot.PolyglotLanguageInstance initValue
        end local 0 // com.oracle.truffle.polyglot.PolyglotLanguage language
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            0    2     0   language  Lcom/oracle/truffle/polyglot/PolyglotLanguage;
            0    2     1  initValue  Lcom/oracle/truffle/polyglot/PolyglotLanguageInstance;
            0    2     2    validIf  Lcom/oracle/truffle/api/Assumption;
            0    2     3   fallback  Lcom/oracle/truffle/api/TruffleLanguage$LanguageReference<Lcom/oracle/truffle/api/TruffleLanguage<Ljava/lang/Object;>;>;
    Signature: (Lcom/oracle/truffle/polyglot/PolyglotLanguage;Lcom/oracle/truffle/polyglot/PolyglotLanguageInstance;Lcom/oracle/truffle/api/Assumption;Lcom/oracle/truffle/api/TruffleLanguage$LanguageReference<Lcom/oracle/truffle/api/TruffleLanguage<Ljava/lang/Object;>;>;)Lcom/oracle/truffle/api/TruffleLanguage$LanguageReference<Lcom/oracle/truffle/api/TruffleLanguage<Ljava/lang/Object;>;>;
    MethodParameters:
           Name  Flags
      language   
      initValue  
      validIf    
      fallback   

  static com.oracle.truffle.api.TruffleLanguage$LanguageReference<com.oracle.truffle.api.TruffleLanguage<java.lang.Object>> createAlwaysMultiLanguage(com.oracle.truffle.polyglot.PolyglotLanguage);
    descriptor: (Lcom/oracle/truffle/polyglot/PolyglotLanguage;)Lcom/oracle/truffle/api/TruffleLanguage$LanguageReference;
    flags: (0x0008) ACC_STATIC
    Code:
      stack=3, locals=1, args_size=1
        start local 0 // com.oracle.truffle.polyglot.PolyglotLanguage language
         0: .line 97
            new com.oracle.truffle.polyglot.PolyglotReferences$MultiLanguageSupplier
            dup
            aload 0 /* language */
            invokespecial com.oracle.truffle.polyglot.PolyglotReferences$MultiLanguageSupplier.<init>:(Lcom/oracle/truffle/polyglot/PolyglotLanguage;)V
            areturn
        end local 0 // com.oracle.truffle.polyglot.PolyglotLanguage language
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    1     0  language  Lcom/oracle/truffle/polyglot/PolyglotLanguage;
    Signature: (Lcom/oracle/truffle/polyglot/PolyglotLanguage;)Lcom/oracle/truffle/api/TruffleLanguage$LanguageReference<Lcom/oracle/truffle/api/TruffleLanguage<Ljava/lang/Object;>;>;
    MethodParameters:
          Name  Flags
      language  

  static java.lang.AssertionError invalidSharingError(com.oracle.truffle.polyglot.PolyglotEngineImpl);
    descriptor: (Lcom/oracle/truffle/polyglot/PolyglotEngineImpl;)Ljava/lang/AssertionError;
    flags: (0x0008) ACC_STATIC
    Code:
      stack=8, locals=13, args_size=1
        start local 0 // com.oracle.truffle.polyglot.PolyglotEngineImpl usedEngine
         0: .line 101
            new java.lang.Exception
            dup
            invokespecial java.lang.Exception.<init>:()V
            astore 1 /* e */
        start local 1 // java.lang.Exception e
         1: .line 102
            new java.lang.StringBuilder
            dup
            invokespecial java.lang.StringBuilder.<init>:()V
            astore 2 /* stack */
        start local 2 // java.lang.StringBuilder stack
         2: .line 103
            aconst_null
            astore 3 /* exceptionCreating */
        start local 3 // java.lang.Exception exceptionCreating
         3: .line 105
            aload 1 /* e */
            invokestatic com.oracle.truffle.api.TruffleStackTrace.fillIn:(Ljava/lang/Throwable;)Lcom/oracle/truffle/api/TruffleStackTrace;
            pop
         4: .line 106
            aconst_null
            astore 4 /* prevPolicy */
        start local 4 // com.oracle.truffle.api.TruffleLanguage$ContextPolicy prevPolicy
         5: .line 107
            aload 1 /* e */
            invokestatic com.oracle.truffle.api.TruffleStackTrace.getStackTrace:(Ljava/lang/Throwable;)Ljava/util/List;
            invokeinterface java.util.List.iterator:()Ljava/util/Iterator;
            astore 6
            goto 24
      StackMap locals: com.oracle.truffle.polyglot.PolyglotEngineImpl java.lang.Exception java.lang.StringBuilder java.lang.Exception com.oracle.truffle.api.TruffleLanguage$ContextPolicy top java.util.Iterator
      StackMap stack:
         6: aload 6
            invokeinterface java.util.Iterator.next:()Ljava/lang/Object;
            checkcast com.oracle.truffle.api.TruffleStackTraceElement
            astore 5 /* stackTrace */
        start local 5 // com.oracle.truffle.api.TruffleStackTraceElement stackTrace
         7: .line 108
            aload 5 /* stackTrace */
            invokevirtual com.oracle.truffle.api.TruffleStackTraceElement.getTarget:()Lcom/oracle/truffle/api/RootCallTarget;
            invokeinterface com.oracle.truffle.api.RootCallTarget.getRootNode:()Lcom/oracle/truffle/api/nodes/RootNode;
            astore 7 /* root */
        start local 7 // com.oracle.truffle.api.nodes.RootNode root
         8: .line 109
            getstatic com.oracle.truffle.polyglot.EngineAccessor.NODES:Lcom/oracle/truffle/api/impl/Accessor$NodeSupport;
            aload 7 /* root */
            invokevirtual com.oracle.truffle.api.impl.Accessor$NodeSupport.getPolyglotEngine:(Lcom/oracle/truffle/api/nodes/RootNode;)Ljava/lang/Object;
            checkcast com.oracle.truffle.polyglot.PolyglotEngineImpl
            astore 8 /* engine */
        start local 8 // com.oracle.truffle.polyglot.PolyglotEngineImpl engine
         9: .line 110
            aload 8 /* engine */
            ifnull 11
            aload 0 /* usedEngine */
            aload 8 /* engine */
            if_acmpeq 11
        10: .line 112
            goto 28
        11: .line 114
      StackMap locals: com.oracle.truffle.polyglot.PolyglotEngineImpl java.lang.Exception java.lang.StringBuilder java.lang.Exception com.oracle.truffle.api.TruffleLanguage$ContextPolicy com.oracle.truffle.api.TruffleStackTraceElement java.util.Iterator com.oracle.truffle.api.nodes.RootNode com.oracle.truffle.polyglot.PolyglotEngineImpl
      StackMap stack:
            aload 7 /* root */
            invokestatic com.oracle.truffle.polyglot.PolyglotReferences.lookupLanguageInstance:(Lcom/oracle/truffle/api/nodes/RootNode;)Lcom/oracle/truffle/polyglot/PolyglotLanguageInstance;
            astore 9 /* instance */
        start local 9 // com.oracle.truffle.polyglot.PolyglotLanguageInstance instance
        12: .line 115
            aload 9 /* instance */
            getfield com.oracle.truffle.polyglot.PolyglotLanguageInstance.language:Lcom/oracle/truffle/polyglot/PolyglotLanguage;
            aload 9 /* instance */
            getfield com.oracle.truffle.polyglot.PolyglotLanguageInstance.language:Lcom/oracle/truffle/polyglot/PolyglotLanguage;
            invokevirtual com.oracle.truffle.polyglot.PolyglotLanguage.getEffectiveContextPolicy:(Lcom/oracle/truffle/polyglot/PolyglotLanguage;)Lcom/oracle/truffle/api/TruffleLanguage$ContextPolicy;
            astore 10 /* policy */
        start local 10 // com.oracle.truffle.api.TruffleLanguage$ContextPolicy policy
        13: .line 117
            aconst_null
            astore 11 /* sourceSection */
        start local 11 // com.oracle.truffle.api.source.SourceSection sourceSection
        14: .line 118
            aload 5 /* stackTrace */
            invokevirtual com.oracle.truffle.api.TruffleStackTraceElement.getLocation:()Lcom/oracle/truffle/api/nodes/Node;
            astore 12 /* location */
        start local 12 // com.oracle.truffle.api.nodes.Node location
        15: .line 119
            aload 12 /* location */
            ifnull 17
        16: .line 120
            aload 12 /* location */
            invokevirtual com.oracle.truffle.api.nodes.Node.getEncapsulatingSourceSection:()Lcom/oracle/truffle/api/source/SourceSection;
            astore 11 /* sourceSection */
        17: .line 122
      StackMap locals: com.oracle.truffle.polyglot.PolyglotEngineImpl java.lang.Exception java.lang.StringBuilder java.lang.Exception com.oracle.truffle.api.TruffleLanguage$ContextPolicy com.oracle.truffle.api.TruffleStackTraceElement java.util.Iterator com.oracle.truffle.api.nodes.RootNode com.oracle.truffle.polyglot.PolyglotEngineImpl com.oracle.truffle.polyglot.PolyglotLanguageInstance com.oracle.truffle.api.TruffleLanguage$ContextPolicy com.oracle.truffle.api.source.SourceSection com.oracle.truffle.api.nodes.Node
      StackMap stack:
            aload 11 /* sourceSection */
            ifnonnull 19
        18: .line 123
            aload 7 /* root */
            invokevirtual com.oracle.truffle.api.nodes.RootNode.getSourceSection:()Lcom/oracle/truffle/api/source/SourceSection;
            astore 11 /* sourceSection */
        19: .line 125
      StackMap locals:
      StackMap stack:
            aload 4 /* prevPolicy */
            getstatic com.oracle.truffle.api.TruffleLanguage$ContextPolicy.EXCLUSIVE:Lcom/oracle/truffle/api/TruffleLanguage$ContextPolicy;
            if_acmpeq 20
            aload 10 /* policy */
            getstatic com.oracle.truffle.api.TruffleLanguage$ContextPolicy.EXCLUSIVE:Lcom/oracle/truffle/api/TruffleLanguage$ContextPolicy;
            if_acmpne 22
      StackMap locals:
      StackMap stack:
        20: aload 4 /* prevPolicy */
            aload 10 /* policy */
            if_acmpeq 22
            aload 4 /* prevPolicy */
            ifnull 22
        21: .line 126
            aload 2 /* stack */
            ldc "    <-- Likely Invalid Sharing --> %n"
            iconst_0
            anewarray java.lang.Object
            invokestatic java.lang.String.format:(Ljava/lang/String;[Ljava/lang/Object;)Ljava/lang/String;
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            pop
        22: .line 128
      StackMap locals:
      StackMap stack:
            aload 2 /* stack */
            ldc "  %-9s %s%n"
            iconst_2
            anewarray java.lang.Object
            dup
            iconst_0
            aload 10 /* policy */
            aastore
            dup
            iconst_1
            aload 9 /* instance */
            getfield com.oracle.truffle.polyglot.PolyglotLanguageInstance.language:Lcom/oracle/truffle/polyglot/PolyglotLanguage;
            aload 7 /* root */
            invokevirtual com.oracle.truffle.api.nodes.RootNode.getName:()Ljava/lang/String;
            aload 11 /* sourceSection */
            invokestatic com.oracle.truffle.polyglot.PolyglotReferences.createJavaStackFrame:(Lcom/oracle/truffle/polyglot/PolyglotLanguage;Ljava/lang/String;Lcom/oracle/truffle/api/source/SourceSection;)Ljava/lang/StackTraceElement;
            aastore
            invokestatic java.lang.String.format:(Ljava/lang/String;[Ljava/lang/Object;)Ljava/lang/String;
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            pop
        23: .line 129
            aload 10 /* policy */
            astore 4 /* prevPolicy */
        end local 12 // com.oracle.truffle.api.nodes.Node location
        end local 11 // com.oracle.truffle.api.source.SourceSection sourceSection
        end local 10 // com.oracle.truffle.api.TruffleLanguage$ContextPolicy policy
        end local 9 // com.oracle.truffle.polyglot.PolyglotLanguageInstance instance
        end local 8 // com.oracle.truffle.polyglot.PolyglotEngineImpl engine
        end local 7 // com.oracle.truffle.api.nodes.RootNode root
        end local 5 // com.oracle.truffle.api.TruffleStackTraceElement stackTrace
        24: .line 107
      StackMap locals: com.oracle.truffle.polyglot.PolyglotEngineImpl java.lang.Exception java.lang.StringBuilder java.lang.Exception com.oracle.truffle.api.TruffleLanguage$ContextPolicy top java.util.Iterator
      StackMap stack:
            aload 6
            invokeinterface java.util.Iterator.hasNext:()Z
            ifne 6
        end local 4 // com.oracle.truffle.api.TruffleLanguage$ContextPolicy prevPolicy
        25: .line 131
            goto 28
      StackMap locals: com.oracle.truffle.polyglot.PolyglotEngineImpl java.lang.Exception java.lang.StringBuilder java.lang.Exception
      StackMap stack: java.lang.Exception
        26: astore 4 /* ex */
        start local 4 // java.lang.Exception ex
        27: .line 132
            aload 4 /* ex */
            astore 3 /* exceptionCreating */
        end local 4 // java.lang.Exception ex
        28: .line 134
      StackMap locals:
      StackMap stack:
            new java.lang.AssertionError
            dup
            ldc "Invalid sharing of runtime values in AST nodes detected.Stack trace: %n%s"
            iconst_1
            anewarray java.lang.Object
            dup
            iconst_0
            aload 2 /* stack */
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            aastore
            invokestatic java.lang.String.format:(Ljava/lang/String;[Ljava/lang/Object;)Ljava/lang/String;
            invokespecial java.lang.AssertionError.<init>:(Ljava/lang/Object;)V
            astore 4 /* error */
        start local 4 // java.lang.AssertionError error
        29: .line 135
            aload 3 /* exceptionCreating */
            ifnull 31
        30: .line 136
            aload 4 /* error */
            aload 3 /* exceptionCreating */
            invokevirtual java.lang.AssertionError.addSuppressed:(Ljava/lang/Throwable;)V
        31: .line 138
      StackMap locals: java.lang.AssertionError
      StackMap stack:
            aload 4 /* error */
            athrow
        end local 4 // java.lang.AssertionError error
        end local 3 // java.lang.Exception exceptionCreating
        end local 2 // java.lang.StringBuilder stack
        end local 1 // java.lang.Exception e
        end local 0 // com.oracle.truffle.polyglot.PolyglotEngineImpl usedEngine
      LocalVariableTable:
        Start  End  Slot               Name  Signature
            0   32     0         usedEngine  Lcom/oracle/truffle/polyglot/PolyglotEngineImpl;
            1   32     1                  e  Ljava/lang/Exception;
            2   32     2              stack  Ljava/lang/StringBuilder;
            3   32     3  exceptionCreating  Ljava/lang/Exception;
            5   25     4         prevPolicy  Lcom/oracle/truffle/api/TruffleLanguage$ContextPolicy;
            7   24     5         stackTrace  Lcom/oracle/truffle/api/TruffleStackTraceElement;
            8   24     7               root  Lcom/oracle/truffle/api/nodes/RootNode;
            9   24     8             engine  Lcom/oracle/truffle/polyglot/PolyglotEngineImpl;
           12   24     9           instance  Lcom/oracle/truffle/polyglot/PolyglotLanguageInstance;
           13   24    10             policy  Lcom/oracle/truffle/api/TruffleLanguage$ContextPolicy;
           14   24    11      sourceSection  Lcom/oracle/truffle/api/source/SourceSection;
           15   24    12           location  Lcom/oracle/truffle/api/nodes/Node;
           27   28     4                 ex  Ljava/lang/Exception;
           29   32     4              error  Ljava/lang/AssertionError;
      Exception table:
        from    to  target  type
           3    25      26  Class java.lang.Exception
    Exceptions:
      throws java.lang.AssertionError
    MethodParameters:
            Name  Flags
      usedEngine  

  static java.lang.StackTraceElement createJavaStackFrame(com.oracle.truffle.polyglot.PolyglotLanguage, java.lang.String, com.oracle.truffle.api.source.SourceSection);
    descriptor: (Lcom/oracle/truffle/polyglot/PolyglotLanguage;Ljava/lang/String;Lcom/oracle/truffle/api/source/SourceSection;)Ljava/lang/StackTraceElement;
    flags: (0x0008) ACC_STATIC
    Code:
      stack=6, locals=7, args_size=3
        start local 0 // com.oracle.truffle.polyglot.PolyglotLanguage language
        start local 1 // java.lang.String rootName
        start local 2 // com.oracle.truffle.api.source.SourceSection sourceLocation
         0: .line 142
            new java.lang.StringBuilder
            dup
            ldc "<"
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            aload 0 /* language */
            invokevirtual com.oracle.truffle.polyglot.PolyglotLanguage.getId:()Ljava/lang/String;
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            ldc ">"
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            astore 3 /* declaringClass */
        start local 3 // java.lang.String declaringClass
         1: .line 143
            aload 1 /* rootName */
            ifnonnull 2
            ldc ""
            goto 3
      StackMap locals: java.lang.String
      StackMap stack:
         2: aload 1 /* rootName */
      StackMap locals:
      StackMap stack: java.lang.String
         3: astore 4 /* methodName */
        start local 4 // java.lang.String methodName
         4: .line 144
            aload 2 /* sourceLocation */
            ifnull 5
            aload 2 /* sourceLocation */
            invokevirtual com.oracle.truffle.api.source.SourceSection.getSource:()Lcom/oracle/truffle/api/source/Source;
            invokevirtual com.oracle.truffle.api.source.Source.getName:()Ljava/lang/String;
            goto 6
      StackMap locals: java.lang.String
      StackMap stack:
         5: ldc "Unknown"
      StackMap locals:
      StackMap stack: java.lang.String
         6: astore 5 /* fileName */
        start local 5 // java.lang.String fileName
         7: .line 145
            aload 2 /* sourceLocation */
            ifnull 8
            aload 2 /* sourceLocation */
            invokevirtual com.oracle.truffle.api.source.SourceSection.getStartLine:()I
            goto 9
      StackMap locals: java.lang.String
      StackMap stack:
         8: iconst_m1
      StackMap locals:
      StackMap stack: int
         9: istore 6 /* startLine */
        start local 6 // int startLine
        10: .line 146
            new java.lang.StackTraceElement
            dup
            aload 3 /* declaringClass */
            aload 4 /* methodName */
            aload 5 /* fileName */
            iload 6 /* startLine */
            invokespecial java.lang.StackTraceElement.<init>:(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;I)V
            areturn
        end local 6 // int startLine
        end local 5 // java.lang.String fileName
        end local 4 // java.lang.String methodName
        end local 3 // java.lang.String declaringClass
        end local 2 // com.oracle.truffle.api.source.SourceSection sourceLocation
        end local 1 // java.lang.String rootName
        end local 0 // com.oracle.truffle.polyglot.PolyglotLanguage language
      LocalVariableTable:
        Start  End  Slot            Name  Signature
            0   11     0        language  Lcom/oracle/truffle/polyglot/PolyglotLanguage;
            0   11     1        rootName  Ljava/lang/String;
            0   11     2  sourceLocation  Lcom/oracle/truffle/api/source/SourceSection;
            1   11     3  declaringClass  Ljava/lang/String;
            4   11     4      methodName  Ljava/lang/String;
            7   11     5        fileName  Ljava/lang/String;
           10   11     6       startLine  I
    MethodParameters:
                Name  Flags
      language        
      rootName        
      sourceLocation  

  private static com.oracle.truffle.polyglot.PolyglotLanguageInstance lookupLanguageInstance(com.oracle.truffle.api.nodes.RootNode);
    descriptor: (Lcom/oracle/truffle/api/nodes/RootNode;)Lcom/oracle/truffle/polyglot/PolyglotLanguageInstance;
    flags: (0x000a) ACC_PRIVATE, ACC_STATIC
    Code:
      stack=2, locals=2, args_size=1
        start local 0 // com.oracle.truffle.api.nodes.RootNode root
         0: .line 150
            getstatic com.oracle.truffle.polyglot.EngineAccessor.NODES:Lcom/oracle/truffle/api/impl/Accessor$NodeSupport;
            aload 0 /* root */
            invokevirtual com.oracle.truffle.api.impl.Accessor$NodeSupport.getLanguage:(Lcom/oracle/truffle/api/nodes/RootNode;)Lcom/oracle/truffle/api/TruffleLanguage;
            astore 1 /* spi */
        start local 1 // com.oracle.truffle.api.TruffleLanguage spi
         1: .line 151
            aload 1 /* spi */
            ifnull 3
         2: .line 152
            getstatic com.oracle.truffle.polyglot.EngineAccessor.LANGUAGE:Lcom/oracle/truffle/api/impl/Accessor$LanguageSupport;
            aload 1 /* spi */
            invokevirtual com.oracle.truffle.api.impl.Accessor$LanguageSupport.getPolyglotLanguageInstance:(Lcom/oracle/truffle/api/TruffleLanguage;)Ljava/lang/Object;
            checkcast com.oracle.truffle.polyglot.PolyglotLanguageInstance
            areturn
         3: .line 154
      StackMap locals: com.oracle.truffle.api.TruffleLanguage
      StackMap stack:
            aconst_null
            areturn
        end local 1 // com.oracle.truffle.api.TruffleLanguage spi
        end local 0 // com.oracle.truffle.api.nodes.RootNode root
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    4     0  root  Lcom/oracle/truffle/api/nodes/RootNode;
            1    4     1   spi  Lcom/oracle/truffle/api/TruffleLanguage<*>;
    MethodParameters:
      Name  Flags
      root  

  private static boolean assertDirectContextAccess(com.oracle.truffle.polyglot.PolyglotLanguageContext, java.lang.Object);
    descriptor: (Lcom/oracle/truffle/polyglot/PolyglotLanguageContext;Ljava/lang/Object;)Z
    flags: (0x000a) ACC_PRIVATE, ACC_STATIC
    Code:
      stack=2, locals=5, args_size=2
        start local 0 // com.oracle.truffle.polyglot.PolyglotLanguageContext languageContext
        start local 1 // java.lang.Object languageContextImpl
         0: .line 158
            aload 0 /* languageContext */
            ifnonnull 2
         1: .line 163
            iconst_1
            ireturn
         2: .line 165
      StackMap locals:
      StackMap stack:
            invokestatic com.oracle.truffle.polyglot.PolyglotContextImpl.requireContext:()Lcom/oracle/truffle/polyglot/PolyglotContextImpl;
            astore 2 /* otherContext */
        start local 2 // com.oracle.truffle.polyglot.PolyglotContextImpl otherContext
         3: .line 166
            aload 2 /* otherContext */
            aload 0 /* languageContext */
            getfield com.oracle.truffle.polyglot.PolyglotLanguageContext.language:Lcom/oracle/truffle/polyglot/PolyglotLanguage;
            invokevirtual com.oracle.truffle.polyglot.PolyglotContextImpl.getContext:(Lcom/oracle/truffle/polyglot/PolyglotLanguage;)Lcom/oracle/truffle/polyglot/PolyglotLanguageContext;
            astore 3 /* otherLanguageContext */
        start local 3 // com.oracle.truffle.polyglot.PolyglotLanguageContext otherLanguageContext
         4: .line 167
            aload 3 /* otherLanguageContext */
            invokevirtual com.oracle.truffle.polyglot.PolyglotLanguageContext.getContextImpl:()Ljava/lang/Object;
            aload 1 /* languageContextImpl */
            if_acmpne 5
            iconst_1
            goto 6
      StackMap locals: com.oracle.truffle.polyglot.PolyglotContextImpl com.oracle.truffle.polyglot.PolyglotLanguageContext
      StackMap stack:
         5: iconst_0
      StackMap locals:
      StackMap stack: int
         6: istore 4 /* valid */
        start local 4 // boolean valid
         7: .line 168
            iload 4 /* valid */
            ifne 9
         8: .line 169
            aload 0 /* languageContext */
            invokevirtual com.oracle.truffle.polyglot.PolyglotLanguageContext.getEngine:()Lcom/oracle/truffle/polyglot/PolyglotEngineImpl;
            invokestatic com.oracle.truffle.polyglot.PolyglotReferences.invalidSharingError:(Lcom/oracle/truffle/polyglot/PolyglotEngineImpl;)Ljava/lang/AssertionError;
            athrow
         9: .line 171
      StackMap locals: int
      StackMap stack:
            iconst_1
            ireturn
        end local 4 // boolean valid
        end local 3 // com.oracle.truffle.polyglot.PolyglotLanguageContext otherLanguageContext
        end local 2 // com.oracle.truffle.polyglot.PolyglotContextImpl otherContext
        end local 1 // java.lang.Object languageContextImpl
        end local 0 // com.oracle.truffle.polyglot.PolyglotLanguageContext languageContext
      LocalVariableTable:
        Start  End  Slot                  Name  Signature
            0   10     0       languageContext  Lcom/oracle/truffle/polyglot/PolyglotLanguageContext;
            0   10     1   languageContextImpl  Ljava/lang/Object;
            3   10     2          otherContext  Lcom/oracle/truffle/polyglot/PolyglotContextImpl;
            4   10     3  otherLanguageContext  Lcom/oracle/truffle/polyglot/PolyglotLanguageContext;
            7   10     4                 valid  Z
    Exceptions:
      throws java.lang.AssertionError
    MethodParameters:
                     Name  Flags
      languageContext      
      languageContextImpl  

  private static boolean checkContextCollected(java.lang.Object);
    descriptor: (Ljava/lang/Object;)Z
    flags: (0x000a) ACC_PRIVATE, ACC_STATIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // java.lang.Object context
         0: .line 175
            aload 0 /* context */
            ifnonnull 2
         1: .line 176
            aconst_null
            invokestatic com.oracle.truffle.polyglot.PolyglotReferences.invalidSharingError:(Lcom/oracle/truffle/polyglot/PolyglotEngineImpl;)Ljava/lang/AssertionError;
            athrow
         2: .line 178
      StackMap locals:
      StackMap stack:
            iconst_1
            ireturn
        end local 0 // java.lang.Object context
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0    3     0  context  Ljava/lang/Object;
    MethodParameters:
         Name  Flags
      context  
}
SourceFile: "PolyglotReferences.java"
NestMembers:
  com.oracle.truffle.polyglot.PolyglotReferences$AbstractContextReference  com.oracle.truffle.polyglot.PolyglotReferences$AssumeSingleContext  com.oracle.truffle.polyglot.PolyglotReferences$AssumeSingleLanguage  com.oracle.truffle.polyglot.PolyglotReferences$MultiContextSupplier  com.oracle.truffle.polyglot.PolyglotReferences$MultiLanguageSupplier  com.oracle.truffle.polyglot.PolyglotReferences$SingleLanguage  com.oracle.truffle.polyglot.PolyglotReferences$StrongSingleContext  com.oracle.truffle.polyglot.PolyglotReferences$WeakSingleContext
InnerClasses:
  public final ContextPolicy = com.oracle.truffle.api.TruffleLanguage$ContextPolicy of com.oracle.truffle.api.TruffleLanguage
  public abstract ContextReference = com.oracle.truffle.api.TruffleLanguage$ContextReference of com.oracle.truffle.api.TruffleLanguage
  public abstract LanguageReference = com.oracle.truffle.api.TruffleLanguage$LanguageReference of com.oracle.truffle.api.TruffleLanguage
  public abstract LanguageSupport = com.oracle.truffle.api.impl.Accessor$LanguageSupport of com.oracle.truffle.api.impl.Accessor
  public abstract NodeSupport = com.oracle.truffle.api.impl.Accessor$NodeSupport of com.oracle.truffle.api.impl.Accessor
  abstract AbstractContextReference = com.oracle.truffle.polyglot.PolyglotReferences$AbstractContextReference of com.oracle.truffle.polyglot.PolyglotReferences
  private final AssumeSingleContext = com.oracle.truffle.polyglot.PolyglotReferences$AssumeSingleContext of com.oracle.truffle.polyglot.PolyglotReferences
  private final AssumeSingleLanguage = com.oracle.truffle.polyglot.PolyglotReferences$AssumeSingleLanguage of com.oracle.truffle.polyglot.PolyglotReferences
  private final MultiContextSupplier = com.oracle.truffle.polyglot.PolyglotReferences$MultiContextSupplier of com.oracle.truffle.polyglot.PolyglotReferences
  private final MultiLanguageSupplier = com.oracle.truffle.polyglot.PolyglotReferences$MultiLanguageSupplier of com.oracle.truffle.polyglot.PolyglotReferences
  private final SingleLanguage = com.oracle.truffle.polyglot.PolyglotReferences$SingleLanguage of com.oracle.truffle.polyglot.PolyglotReferences
  private final StrongSingleContext = com.oracle.truffle.polyglot.PolyglotReferences$StrongSingleContext of com.oracle.truffle.polyglot.PolyglotReferences
  private final WeakSingleContext = com.oracle.truffle.polyglot.PolyglotReferences$WeakSingleContext of com.oracle.truffle.polyglot.PolyglotReferences