https://www.graalvm.org/ 
final class com.oracle.truffle.llvm.runtime.LLVMScope$Keys implements com.oracle.truffle.api.interop.TruffleObject
  minor version: 0
  major version: 59
  flags: flags: (0x0030) ACC_FINAL, ACC_SUPER
  this_class: com.oracle.truffle.llvm.runtime.LLVMScope$Keys
  super_class: java.lang.Object
{
  private final com.oracle.truffle.llvm.runtime.LLVMScope scope;
    descriptor: Lcom/oracle/truffle/llvm/runtime/LLVMScope;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private void <init>(com.oracle.truffle.llvm.runtime.LLVMScope);
    descriptor: (Lcom/oracle/truffle/llvm/runtime/LLVMScope;)V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // com.oracle.truffle.llvm.runtime.LLVMScope$Keys this
        start local 1 // com.oracle.truffle.llvm.runtime.LLVMScope scope
         0: .line 274
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 275
            aload 0 /* this */
            aload 1 /* scope */
            putfield com.oracle.truffle.llvm.runtime.LLVMScope$Keys.scope:Lcom/oracle/truffle/llvm/runtime/LLVMScope;
         2: .line 276
            return
        end local 1 // com.oracle.truffle.llvm.runtime.LLVMScope scope
        end local 0 // com.oracle.truffle.llvm.runtime.LLVMScope$Keys this
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    3     0   this  Lcom/oracle/truffle/llvm/runtime/LLVMScope$Keys;
            0    3     1  scope  Lcom/oracle/truffle/llvm/runtime/LLVMScope;
    MethodParameters:
       Name  Flags
      scope  

  boolean hasArrayElements();
    descriptor: ()Z
    flags: (0x0000) 
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.oracle.truffle.llvm.runtime.LLVMScope$Keys this
         0: .line 280
            iconst_1
            ireturn
        end local 0 // com.oracle.truffle.llvm.runtime.LLVMScope$Keys this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/oracle/truffle/llvm/runtime/LLVMScope$Keys;
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.library.ExportMessage()

  long getArraySize();
    descriptor: ()J
    flags: (0x0000) 
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // com.oracle.truffle.llvm.runtime.LLVMScope$Keys this
         0: .line 285
            aload 0 /* this */
            getfield com.oracle.truffle.llvm.runtime.LLVMScope$Keys.scope:Lcom/oracle/truffle/llvm/runtime/LLVMScope;
            getfield com.oracle.truffle.llvm.runtime.LLVMScope.functionKeys:Ljava/util/ArrayList;
            invokevirtual java.util.ArrayList.size:()I
            i2l
            lreturn
        end local 0 // com.oracle.truffle.llvm.runtime.LLVMScope$Keys this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/oracle/truffle/llvm/runtime/LLVMScope$Keys;
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.library.ExportMessage()

  boolean isArrayElementReadable(long);
    descriptor: (J)Z
    flags: (0x0000) 
    Code:
      stack=4, locals=3, args_size=2
        start local 0 // com.oracle.truffle.llvm.runtime.LLVMScope$Keys this
        start local 1 // long index
         0: .line 290
            lconst_0
            lload 1 /* index */
            lcmp
            ifgt 1
            lload 1 /* index */
            aload 0 /* this */
            invokevirtual com.oracle.truffle.llvm.runtime.LLVMScope$Keys.getArraySize:()J
            lcmp
            ifge 1
            iconst_1
            ireturn
      StackMap locals:
      StackMap stack:
         1: iconst_0
            ireturn
        end local 1 // long index
        end local 0 // com.oracle.truffle.llvm.runtime.LLVMScope$Keys this
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    2     0   this  Lcom/oracle/truffle/llvm/runtime/LLVMScope$Keys;
            0    2     1  index  J
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.library.ExportMessage()
    MethodParameters:
       Name  Flags
      index  

  java.lang.Object readArrayElement(long, com.oracle.truffle.api.profiles.BranchProfile);
    descriptor: (JLcom/oracle/truffle/api/profiles/BranchProfile;)Ljava/lang/Object;
    flags: (0x0000) 
    Code:
      stack=3, locals=4, args_size=3
        start local 0 // com.oracle.truffle.llvm.runtime.LLVMScope$Keys this
        start local 1 // long index
        start local 3 // com.oracle.truffle.api.profiles.BranchProfile exception
         0: .line 296
            aload 0 /* this */
            lload 1 /* index */
            invokevirtual com.oracle.truffle.llvm.runtime.LLVMScope$Keys.isArrayElementReadable:(J)Z
            ifeq 2
         1: .line 297
            aload 0 /* this */
            getfield com.oracle.truffle.llvm.runtime.LLVMScope$Keys.scope:Lcom/oracle/truffle/llvm/runtime/LLVMScope;
            lload 1 /* index */
            l2i
            invokevirtual com.oracle.truffle.llvm.runtime.LLVMScope.getKey:(I)Ljava/lang/String;
            areturn
         2: .line 299
      StackMap locals:
      StackMap stack:
            aload 3 /* exception */
            invokevirtual com.oracle.truffle.api.profiles.BranchProfile.enter:()V
         3: .line 300
            lload 1 /* index */
            invokestatic com.oracle.truffle.api.interop.InvalidArrayIndexException.create:(J)Lcom/oracle/truffle/api/interop/InvalidArrayIndexException;
            athrow
        end local 3 // com.oracle.truffle.api.profiles.BranchProfile exception
        end local 1 // long index
        end local 0 // com.oracle.truffle.llvm.runtime.LLVMScope$Keys this
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            0    4     0       this  Lcom/oracle/truffle/llvm/runtime/LLVMScope$Keys;
            0    4     1      index  J
            0    4     3  exception  Lcom/oracle/truffle/api/profiles/BranchProfile;
    Exceptions:
      throws com.oracle.truffle.api.interop.InvalidArrayIndexException
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.library.ExportMessage()
    RuntimeInvisibleParameterAnnotations: 
      0:
      1:
        com.oracle.truffle.api.dsl.Cached()
    MethodParameters:
           Name  Flags
      index      
      exception  
}
SourceFile: "LLVMScope.java"
NestHost: com.oracle.truffle.llvm.runtime.LLVMScope
InnerClasses:
  final Keys = com.oracle.truffle.llvm.runtime.LLVMScope$Keys of com.oracle.truffle.llvm.runtime.LLVMScope
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.library.ExportLibrary(value = Lcom/oracle/truffle/api/interop/InteropLibrary;)