https://www.graalvm.org/ 
public abstract class com.oracle.truffle.js.builtins.StringPrototypeBuiltins$JSStringSubstringNode$Inlined extends com.oracle.truffle.js.builtins.StringPrototypeBuiltins$JSStringSubstringNode implements com.oracle.truffle.js.nodes.function.JSBuiltinNode$Inlined
  minor version: 0
  major version: 59
  flags: flags: (0x0421) ACC_PUBLIC, ACC_SUPER, ACC_ABSTRACT
  this_class: com.oracle.truffle.js.builtins.StringPrototypeBuiltins$JSStringSubstringNode$Inlined
  super_class: com.oracle.truffle.js.builtins.StringPrototypeBuiltins$JSStringSubstringNode
{
  public void <init>(com.oracle.truffle.js.runtime.JSContext, com.oracle.truffle.js.nodes.function.JSBuiltin);
    descriptor: (Lcom/oracle/truffle/js/runtime/JSContext;Lcom/oracle/truffle/js/nodes/function/JSBuiltin;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=3, args_size=3
        start local 0 // com.oracle.truffle.js.builtins.StringPrototypeBuiltins$JSStringSubstringNode$Inlined this
        start local 1 // com.oracle.truffle.js.runtime.JSContext context
        start local 2 // com.oracle.truffle.js.nodes.function.JSBuiltin builtin
         0: .line 738
            aload 0 /* this */
            aload 1 /* context */
            aload 2 /* builtin */
            invokespecial com.oracle.truffle.js.builtins.StringPrototypeBuiltins$JSStringSubstringNode.<init>:(Lcom/oracle/truffle/js/runtime/JSContext;Lcom/oracle/truffle/js/nodes/function/JSBuiltin;)V
         1: .line 739
            return
        end local 2 // com.oracle.truffle.js.nodes.function.JSBuiltin builtin
        end local 1 // com.oracle.truffle.js.runtime.JSContext context
        end local 0 // com.oracle.truffle.js.builtins.StringPrototypeBuiltins$JSStringSubstringNode$Inlined this
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0    2     0     this  Lcom/oracle/truffle/js/builtins/StringPrototypeBuiltins$JSStringSubstringNode$Inlined;
            0    2     1  context  Lcom/oracle/truffle/js/runtime/JSContext;
            0    2     2  builtin  Lcom/oracle/truffle/js/nodes/function/JSBuiltin;
    MethodParameters:
         Name  Flags
      context  
      builtin  

  protected java.lang.String substringGeneric(java.lang.Object, java.lang.Object, java.lang.Object, com.oracle.truffle.js.nodes.cast.JSToNumberNode, com.oracle.truffle.js.nodes.cast.JSToNumberNode, com.oracle.truffle.api.profiles.ConditionProfile, com.oracle.truffle.api.profiles.ConditionProfile);
    descriptor: (Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Lcom/oracle/truffle/js/nodes/cast/JSToNumberNode;Lcom/oracle/truffle/js/nodes/cast/JSToNumberNode;Lcom/oracle/truffle/api/profiles/ConditionProfile;Lcom/oracle/truffle/api/profiles/ConditionProfile;)Ljava/lang/String;
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=1, locals=8, args_size=8
        start local 0 // com.oracle.truffle.js.builtins.StringPrototypeBuiltins$JSStringSubstringNode$Inlined this
        start local 1 // java.lang.Object thisObj
        start local 2 // java.lang.Object start
        start local 3 // java.lang.Object end
        start local 4 // com.oracle.truffle.js.nodes.cast.JSToNumberNode toNumberNode
        start local 5 // com.oracle.truffle.js.nodes.cast.JSToNumberNode toNumber2Node
        start local 6 // com.oracle.truffle.api.profiles.ConditionProfile startUndefined
        start local 7 // com.oracle.truffle.api.profiles.ConditionProfile endUndefined
         0: .line 748
            aload 0 /* this */
            invokevirtual com.oracle.truffle.js.builtins.StringPrototypeBuiltins$JSStringSubstringNode$Inlined.rewriteToCall:()Ljava/lang/RuntimeException;
            athrow
        end local 7 // com.oracle.truffle.api.profiles.ConditionProfile endUndefined
        end local 6 // com.oracle.truffle.api.profiles.ConditionProfile startUndefined
        end local 5 // com.oracle.truffle.js.nodes.cast.JSToNumberNode toNumber2Node
        end local 4 // com.oracle.truffle.js.nodes.cast.JSToNumberNode toNumberNode
        end local 3 // java.lang.Object end
        end local 2 // java.lang.Object start
        end local 1 // java.lang.Object thisObj
        end local 0 // com.oracle.truffle.js.builtins.StringPrototypeBuiltins$JSStringSubstringNode$Inlined this
      LocalVariableTable:
        Start  End  Slot            Name  Signature
            0    1     0            this  Lcom/oracle/truffle/js/builtins/StringPrototypeBuiltins$JSStringSubstringNode$Inlined;
            0    1     1         thisObj  Ljava/lang/Object;
            0    1     2           start  Ljava/lang/Object;
            0    1     3             end  Ljava/lang/Object;
            0    1     4    toNumberNode  Lcom/oracle/truffle/js/nodes/cast/JSToNumberNode;
            0    1     5   toNumber2Node  Lcom/oracle/truffle/js/nodes/cast/JSToNumberNode;
            0    1     6  startUndefined  Lcom/oracle/truffle/api/profiles/ConditionProfile;
            0    1     7    endUndefined  Lcom/oracle/truffle/api/profiles/ConditionProfile;
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.dsl.Specialization()
    RuntimeInvisibleParameterAnnotations: 
      0:
      1:
      2:
      3:
        com.oracle.truffle.api.dsl.Cached(value = "create()")
      4:
        com.oracle.truffle.api.dsl.Cached(value = "create()")
      5:
        com.oracle.truffle.api.dsl.Cached(value = "createBinaryProfile()")
      6:
        com.oracle.truffle.api.dsl.Cached(value = "createBinaryProfile()")
    MethodParameters:
                Name  Flags
      thisObj         
      start           
      end             
      toNumberNode    
      toNumber2Node   
      startUndefined  
      endUndefined    

  protected abstract java.lang.Object executeWithArguments(java.lang.Object, java.lang.Object, java.lang.Object);
    descriptor: (Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
    flags: (0x0404) ACC_PROTECTED, ACC_ABSTRACT
    MethodParameters:
      Name  Flags
      arg0  
      arg1  
      arg2  

  public java.lang.Object callInlined(java.lang.Object[]);
    descriptor: ([Ljava/lang/Object;)Ljava/lang/Object;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=5, args_size=2
        start local 0 // com.oracle.truffle.js.builtins.StringPrototypeBuiltins$JSStringSubstringNode$Inlined this
        start local 1 // java.lang.Object[] arguments
         0: .line 755
            aload 1 /* arguments */
            invokestatic com.oracle.truffle.js.runtime.JSArguments.getUserArgumentCount:([Ljava/lang/Object;)I
            iconst_1
            if_icmpge 2
         1: .line 756
            aload 0 /* this */
            invokevirtual com.oracle.truffle.js.builtins.StringPrototypeBuiltins$JSStringSubstringNode$Inlined.rewriteToCall:()Ljava/lang/RuntimeException;
            athrow
         2: .line 758
      StackMap locals:
      StackMap stack:
            aload 1 /* arguments */
            invokestatic com.oracle.truffle.js.runtime.JSArguments.getThisObject:([Ljava/lang/Object;)Ljava/lang/Object;
            astore 2 /* thisObj */
        start local 2 // java.lang.Object thisObj
         3: .line 759
            aload 1 /* arguments */
            iconst_0
            invokestatic com.oracle.truffle.js.runtime.JSArguments.getUserArgument:([Ljava/lang/Object;I)Ljava/lang/Object;
            astore 3 /* start */
        start local 3 // java.lang.Object start
         4: .line 760
            aload 1 /* arguments */
            invokestatic com.oracle.truffle.js.runtime.JSArguments.getUserArgumentCount:([Ljava/lang/Object;)I
            iconst_2
            if_icmplt 5
            aload 1 /* arguments */
            iconst_1
            invokestatic com.oracle.truffle.js.runtime.JSArguments.getUserArgument:([Ljava/lang/Object;I)Ljava/lang/Object;
            goto 6
      StackMap locals: java.lang.Object java.lang.Object
      StackMap stack:
         5: getstatic com.oracle.truffle.js.runtime.objects.Undefined.instance:Lcom/oracle/truffle/js/runtime/objects/JSDynamicObject;
      StackMap locals:
      StackMap stack: java.lang.Object
         6: astore 4 /* end */
        start local 4 // java.lang.Object end
         7: .line 761
            aload 0 /* this */
            aload 2 /* thisObj */
            aload 3 /* start */
            aload 4 /* end */
            invokevirtual com.oracle.truffle.js.builtins.StringPrototypeBuiltins$JSStringSubstringNode$Inlined.executeWithArguments:(Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
            areturn
        end local 4 // java.lang.Object end
        end local 3 // java.lang.Object start
        end local 2 // java.lang.Object thisObj
        end local 1 // java.lang.Object[] arguments
        end local 0 // com.oracle.truffle.js.builtins.StringPrototypeBuiltins$JSStringSubstringNode$Inlined this
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            0    8     0       this  Lcom/oracle/truffle/js/builtins/StringPrototypeBuiltins$JSStringSubstringNode$Inlined;
            0    8     1  arguments  [Ljava/lang/Object;
            3    8     2    thisObj  Ljava/lang/Object;
            4    8     3      start  Ljava/lang/Object;
            7    8     4        end  Ljava/lang/Object;
    MethodParameters:
           Name  Flags
      arguments  
}
SourceFile: "StringPrototypeBuiltins.java"
NestHost: com.oracle.truffle.js.builtins.StringPrototypeBuiltins
InnerClasses:
  public abstract JSStringSubstringNode = com.oracle.truffle.js.builtins.StringPrototypeBuiltins$JSStringSubstringNode of com.oracle.truffle.js.builtins.StringPrototypeBuiltins
  public abstract Inlined = com.oracle.truffle.js.builtins.StringPrototypeBuiltins$JSStringSubstringNode$Inlined of com.oracle.truffle.js.builtins.StringPrototypeBuiltins$JSStringSubstringNode
  public abstract Inlined = com.oracle.truffle.js.nodes.function.JSBuiltinNode$Inlined of com.oracle.truffle.js.nodes.function.JSBuiltinNode