https://freemarker.apache.org/: FreeMarker is a "template engine"; a generic tool to generate text output based on templates. (Apache Software Foundation) 
class freemarker.core.EscapeBlock extends freemarker.core.TemplateElement
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: freemarker.core.EscapeBlock
  super_class: freemarker.core.TemplateElement
{
  private final java.lang.String variable;
    descriptor: Ljava/lang/String;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private final freemarker.core.Expression expr;
    descriptor: Lfreemarker/core/Expression;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private freemarker.core.Expression escapedExpr;
    descriptor: Lfreemarker/core/Expression;
    flags: (0x0002) ACC_PRIVATE

  void <init>(java.lang.String, freemarker.core.Expression, freemarker.core.Expression);
    descriptor: (Ljava/lang/String;Lfreemarker/core/Expression;Lfreemarker/core/Expression;)V
    flags: (0x0000) 
    Code:
      stack=2, locals=4, args_size=4
        start local 0 // freemarker.core.EscapeBlock this
        start local 1 // java.lang.String variable
        start local 2 // freemarker.core.Expression expr
        start local 3 // freemarker.core.Expression escapedExpr
         0: .line 37
            aload 0 /* this */
            invokespecial freemarker.core.TemplateElement.<init>:()V
         1: .line 38
            aload 0 /* this */
            aload 1 /* variable */
            putfield freemarker.core.EscapeBlock.variable:Ljava/lang/String;
         2: .line 39
            aload 0 /* this */
            aload 2 /* expr */
            putfield freemarker.core.EscapeBlock.expr:Lfreemarker/core/Expression;
         3: .line 40
            aload 0 /* this */
            aload 3 /* escapedExpr */
            putfield freemarker.core.EscapeBlock.escapedExpr:Lfreemarker/core/Expression;
         4: .line 41
            return
        end local 3 // freemarker.core.Expression escapedExpr
        end local 2 // freemarker.core.Expression expr
        end local 1 // java.lang.String variable
        end local 0 // freemarker.core.EscapeBlock this
      LocalVariableTable:
        Start  End  Slot         Name  Signature
            0    5     0         this  Lfreemarker/core/EscapeBlock;
            0    5     1     variable  Ljava/lang/String;
            0    5     2         expr  Lfreemarker/core/Expression;
            0    5     3  escapedExpr  Lfreemarker/core/Expression;
    MethodParameters:
             Name  Flags
      variable     
      expr         
      escapedExpr  

  void setContent(freemarker.core.TemplateElements);
    descriptor: (Lfreemarker/core/TemplateElements;)V
    flags: (0x0000) 
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // freemarker.core.EscapeBlock this
        start local 1 // freemarker.core.TemplateElements children
         0: .line 44
            aload 0 /* this */
            aload 1 /* children */
            invokevirtual freemarker.core.EscapeBlock.setChildren:(Lfreemarker/core/TemplateElements;)V
         1: .line 46
            aload 0 /* this */
            aconst_null
            putfield freemarker.core.EscapeBlock.escapedExpr:Lfreemarker/core/Expression;
         2: .line 47
            return
        end local 1 // freemarker.core.TemplateElements children
        end local 0 // freemarker.core.EscapeBlock this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    3     0      this  Lfreemarker/core/EscapeBlock;
            0    3     1  children  Lfreemarker/core/TemplateElements;
    MethodParameters:
          Name  Flags
      children  

  freemarker.core.TemplateElement[] accept(freemarker.core.Environment);
    descriptor: (Lfreemarker/core/Environment;)[Lfreemarker/core/TemplateElement;
    flags: (0x0000) 
    Code:
      stack=1, locals=2, args_size=2
        start local 0 // freemarker.core.EscapeBlock this
        start local 1 // freemarker.core.Environment env
         0: .line 51
            aload 0 /* this */
            invokevirtual freemarker.core.EscapeBlock.getChildBuffer:()[Lfreemarker/core/TemplateElement;
            areturn
        end local 1 // freemarker.core.Environment env
        end local 0 // freemarker.core.EscapeBlock this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lfreemarker/core/EscapeBlock;
            0    1     1   env  Lfreemarker/core/Environment;
    Exceptions:
      throws freemarker.template.TemplateException, java.io.IOException
    MethodParameters:
      Name  Flags
      env   

  freemarker.core.Expression doEscape(freemarker.core.Expression);
    descriptor: (Lfreemarker/core/Expression;)Lfreemarker/core/Expression;
    flags: (0x0000) 
    Code:
      stack=5, locals=2, args_size=2
        start local 0 // freemarker.core.EscapeBlock this
        start local 1 // freemarker.core.Expression expression
         0: .line 55
            aload 0 /* this */
            getfield freemarker.core.EscapeBlock.escapedExpr:Lfreemarker/core/Expression;
            aload 0 /* this */
            getfield freemarker.core.EscapeBlock.variable:Ljava/lang/String;
            aload 1 /* expression */
            new freemarker.core.Expression$ReplacemenetState
            dup
            invokespecial freemarker.core.Expression$ReplacemenetState.<init>:()V
            invokevirtual freemarker.core.Expression.deepCloneWithIdentifierReplaced:(Ljava/lang/String;Lfreemarker/core/Expression;Lfreemarker/core/Expression$ReplacemenetState;)Lfreemarker/core/Expression;
            areturn
        end local 1 // freemarker.core.Expression expression
        end local 0 // freemarker.core.EscapeBlock this
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0    1     0        this  Lfreemarker/core/EscapeBlock;
            0    1     1  expression  Lfreemarker/core/Expression;
    MethodParameters:
            Name  Flags
      expression  

  protected java.lang.String dump(boolean);
    descriptor: (Z)Ljava/lang/String;
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=2, locals=3, args_size=2
        start local 0 // freemarker.core.EscapeBlock this
        start local 1 // boolean canonical
         0: .line 60
            new java.lang.StringBuilder
            dup
            invokespecial java.lang.StringBuilder.<init>:()V
            astore 2 /* sb */
        start local 2 // java.lang.StringBuilder sb
         1: .line 61
            iload 1 /* canonical */
            ifeq 2
            aload 2 /* sb */
            bipush 60
            invokevirtual java.lang.StringBuilder.append:(C)Ljava/lang/StringBuilder;
            pop
         2: .line 62
      StackMap locals: java.lang.StringBuilder
      StackMap stack:
            aload 2 /* sb */
            aload 0 /* this */
            invokevirtual freemarker.core.EscapeBlock.getNodeTypeSymbol:()Ljava/lang/String;
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
         3: .line 63
            bipush 32
            invokevirtual java.lang.StringBuilder.append:(C)Ljava/lang/StringBuilder;
            aload 0 /* this */
            getfield freemarker.core.EscapeBlock.variable:Ljava/lang/String;
            invokestatic freemarker.core._CoreStringUtils.toFTLTopLevelIdentifierReference:(Ljava/lang/String;)Ljava/lang/String;
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
         4: .line 64
            ldc " as "
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            aload 0 /* this */
            getfield freemarker.core.EscapeBlock.expr:Lfreemarker/core/Expression;
            invokevirtual freemarker.core.Expression.getCanonicalForm:()Ljava/lang/String;
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            pop
         5: .line 65
            iload 1 /* canonical */
            ifeq 9
         6: .line 66
            aload 2 /* sb */
            bipush 62
            invokevirtual java.lang.StringBuilder.append:(C)Ljava/lang/StringBuilder;
            pop
         7: .line 67
            aload 2 /* sb */
            aload 0 /* this */
            invokevirtual freemarker.core.EscapeBlock.getChildrenCanonicalForm:()Ljava/lang/String;
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            pop
         8: .line 68
            aload 2 /* sb */
            ldc "</"
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            aload 0 /* this */
            invokevirtual freemarker.core.EscapeBlock.getNodeTypeSymbol:()Ljava/lang/String;
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            bipush 62
            invokevirtual java.lang.StringBuilder.append:(C)Ljava/lang/StringBuilder;
            pop
         9: .line 70
      StackMap locals:
      StackMap stack:
            aload 2 /* sb */
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            areturn
        end local 2 // java.lang.StringBuilder sb
        end local 1 // boolean canonical
        end local 0 // freemarker.core.EscapeBlock this
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            0   10     0       this  Lfreemarker/core/EscapeBlock;
            0   10     1  canonical  Z
            1   10     2         sb  Ljava/lang/StringBuilder;
    MethodParameters:
           Name  Flags
      canonical  

  java.lang.String getNodeTypeSymbol();
    descriptor: ()Ljava/lang/String;
    flags: (0x0000) 
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // freemarker.core.EscapeBlock this
         0: .line 75
            ldc "#escape"
            areturn
        end local 0 // freemarker.core.EscapeBlock this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lfreemarker/core/EscapeBlock;

  int getParameterCount();
    descriptor: ()I
    flags: (0x0000) 
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // freemarker.core.EscapeBlock this
         0: .line 80
            iconst_2
            ireturn
        end local 0 // freemarker.core.EscapeBlock this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lfreemarker/core/EscapeBlock;

  java.lang.Object getParameterValue(int);
    descriptor: (I)Ljava/lang/Object;
    flags: (0x0000) 
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // freemarker.core.EscapeBlock this
        start local 1 // int idx
         0: .line 85
            iload 1 /* idx */
            tableswitch { // 0 - 1
                    0: 1
                    1: 2
              default: 3
          }
         1: .line 86
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield freemarker.core.EscapeBlock.variable:Ljava/lang/String;
            areturn
         2: .line 87
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield freemarker.core.EscapeBlock.expr:Lfreemarker/core/Expression;
            areturn
         3: .line 88
      StackMap locals:
      StackMap stack:
            new java.lang.IndexOutOfBoundsException
            dup
            invokespecial java.lang.IndexOutOfBoundsException.<init>:()V
            athrow
        end local 1 // int idx
        end local 0 // freemarker.core.EscapeBlock this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    4     0  this  Lfreemarker/core/EscapeBlock;
            0    4     1   idx  I
    MethodParameters:
      Name  Flags
      idx   

  freemarker.core.ParameterRole getParameterRole(int);
    descriptor: (I)Lfreemarker/core/ParameterRole;
    flags: (0x0000) 
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // freemarker.core.EscapeBlock this
        start local 1 // int idx
         0: .line 94
            iload 1 /* idx */
            tableswitch { // 0 - 1
                    0: 1
                    1: 2
              default: 3
          }
         1: .line 95
      StackMap locals:
      StackMap stack:
            getstatic freemarker.core.ParameterRole.PLACEHOLDER_VARIABLE:Lfreemarker/core/ParameterRole;
            areturn
         2: .line 96
      StackMap locals:
      StackMap stack:
            getstatic freemarker.core.ParameterRole.EXPRESSION_TEMPLATE:Lfreemarker/core/ParameterRole;
            areturn
         3: .line 97
      StackMap locals:
      StackMap stack:
            new java.lang.IndexOutOfBoundsException
            dup
            invokespecial java.lang.IndexOutOfBoundsException.<init>:()V
            athrow
        end local 1 // int idx
        end local 0 // freemarker.core.EscapeBlock this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    4     0  this  Lfreemarker/core/EscapeBlock;
            0    4     1   idx  I
    MethodParameters:
      Name  Flags
      idx   

  boolean isOutputCacheable();
    descriptor: ()Z
    flags: (0x0000) 
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // freemarker.core.EscapeBlock this
         0: .line 103
            iconst_1
            ireturn
        end local 0 // freemarker.core.EscapeBlock this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lfreemarker/core/EscapeBlock;

  boolean isNestedBlockRepeater();
    descriptor: ()Z
    flags: (0x0000) 
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // freemarker.core.EscapeBlock this
         0: .line 108
            iconst_0
            ireturn
        end local 0 // freemarker.core.EscapeBlock this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lfreemarker/core/EscapeBlock;
}
SourceFile: "EscapeBlock.java"
InnerClasses:
  ReplacemenetState = freemarker.core.Expression$ReplacemenetState of freemarker.core.Expression