// ASM: a very small and fast Java bytecode manipulation framework
// Copyright (c) 2000-2011 INRIA, France Telecom
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
// 1. Redistributions of source code must retain the above copyright
//    notice, this list of conditions and the following disclaimer.
// 2. Redistributions in binary form must reproduce the above copyright
//    notice, this list of conditions and the following disclaimer in the
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//    contributors may be used to endorse or promote products derived from
//    this software without specific prior written permission.
//
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package org.springframework.asm;

The JVM opcodes, access flags and array type codes. This interface does not define all the JVM
opcodes because some opcodes are automatically handled. For example, the xLOAD and xSTORE opcodes
are automatically replaced by xLOAD_n and xSTORE_n opcodes when possible. The xLOAD_n and
xSTORE_n opcodes are therefore not defined in this interface. Likewise for LDC, automatically
replaced by LDC_W or LDC2_W when necessary, WIDE, GOTO_W and JSR_W.
Author:
Eric Bruneton, Eugene Kuleshov
See Also:
JVMS 6/**
 * The JVM opcodes, access flags and array type codes. This interface does not define all the JVM
 * opcodes because some opcodes are automatically handled. For example, the xLOAD and xSTORE opcodes
 * are automatically replaced by xLOAD_n and xSTORE_n opcodes when possible. The xLOAD_n and
 * xSTORE_n opcodes are therefore not defined in this interface. Likewise for LDC, automatically
 * replaced by LDC_W or LDC2_W when necessary, WIDE, GOTO_W and JSR_W.
 *
 * @see <a href="https://docs.oracle.com/javase/specs/jvms/se11/html/jvms-6.html">JVMS 6</a>
 * @author Eric Bruneton
 * @author Eugene Kuleshov
 */
// DontCheck(InterfaceIsType): can't be fixed (for backward binary compatibility).
public interface Opcodes {

  // ASM API versions.

  int ASM4 = 4 << 16 | 0 << 8;
  int ASM5 = 5 << 16 | 0 << 8;
  int ASM6 = 6 << 16 | 0 << 8;
  int ASM7 = 7 << 16 | 0 << 8;

  // Java ClassFile versions (the minor version is stored in the 16 most
  // significant bits, and the
  // major version in the 16 least significant bits).

  int V1_1 = 3 << 16 | 45;
  int V1_2 = 0 << 16 | 46;
  int V1_3 = 0 << 16 | 47;
  int V1_4 = 0 << 16 | 48;
  int V1_5 = 0 << 16 | 49;
  int V1_6 = 0 << 16 | 50;
  int V1_7 = 0 << 16 | 51;
  int V1_8 = 0 << 16 | 52;
  int V9 = 0 << 16 | 53;
  int V10 = 0 << 16 | 54;
  int V11 = 0 << 16 | 55;
  int V12 = 0 << 16 | 56;

  
Version flag indicating that the class is using 'preview' features.
version & V_PREVIEW == V_PREVIEW tests if a version is flagged with 
V_PREVIEW. /**
   * Version flag indicating that the class is using 'preview' features.
   *
   * <p>{@code version & V_PREVIEW == V_PREVIEW} tests if a version is flagged with {@code
   * V_PREVIEW}.
   */
  int V_PREVIEW = 0xFFFF0000;

  // Access flags values, defined in
  // - https://docs.oracle.com/javase/specs/jvms/se9/html/jvms-4.html#jvms-4.1-200-E.1
  // - https://docs.oracle.com/javase/specs/jvms/se9/html/jvms-4.html#jvms-4.5-200-A.1
  // - https://docs.oracle.com/javase/specs/jvms/se9/html/jvms-4.html#jvms-4.6-200-A.1
  // - https://docs.oracle.com/javase/specs/jvms/se9/html/jvms-4.html#jvms-4.7.25

  int ACC_PUBLIC = 0x0001; // class, field, method
  int ACC_PRIVATE = 0x0002; // class, field, method
  int ACC_PROTECTED = 0x0004; // class, field, method
  int ACC_STATIC = 0x0008; // field, method
  int ACC_FINAL = 0x0010; // class, field, method, parameter
  int ACC_SUPER = 0x0020; // class
  int ACC_SYNCHRONIZED = 0x0020; // method
  int ACC_OPEN = 0x0020; // module
  int ACC_TRANSITIVE = 0x0020; // module requires
  int ACC_VOLATILE = 0x0040; // field
  int ACC_BRIDGE = 0x0040; // method
  int ACC_STATIC_PHASE = 0x0040; // module requires
  int ACC_VARARGS = 0x0080; // method
  int ACC_TRANSIENT = 0x0080; // field
  int ACC_NATIVE = 0x0100; // method
  int ACC_INTERFACE = 0x0200; // class
  int ACC_ABSTRACT = 0x0400; // class, method
  int ACC_STRICT = 0x0800; // method
  int ACC_SYNTHETIC = 0x1000; // class, field, method, parameter, module *
  int ACC_ANNOTATION = 0x2000; // class
  int ACC_ENUM = 0x4000; // class(?) field inner
  int ACC_MANDATED = 0x8000; // parameter, module, module *
  int ACC_MODULE = 0x8000; // class

  // ASM specific access flags.
  // WARNING: the 16 least significant bits must NOT be used, to avoid conflicts with standard
  // access flags, and also to make sure that these flags are automatically filtered out when
  // written in class files (because access flags are stored using 16 bits only).

  int ACC_DEPRECATED = 0x20000; // class, field, method

  // Possible values for the type operand of the NEWARRAY instruction.
  // See https://docs.oracle.com/javase/specs/jvms/se9/html/jvms-6.html#jvms-6.5.newarray.

  int T_BOOLEAN = 4;
  int T_CHAR = 5;
  int T_FLOAT = 6;
  int T_DOUBLE = 7;
  int T_BYTE = 8;
  int T_SHORT = 9;
  int T_INT = 10;
  int T_LONG = 11;

  // Possible values for the reference_kind field of CONSTANT_MethodHandle_info structures.
  // See https://docs.oracle.com/javase/specs/jvms/se9/html/jvms-4.html#jvms-4.4.8.

  int H_GETFIELD = 1;
  int H_GETSTATIC = 2;
  int H_PUTFIELD = 3;
  int H_PUTSTATIC = 4;
  int H_INVOKEVIRTUAL = 5;
  int H_INVOKESTATIC = 6;
  int H_INVOKESPECIAL = 7;
  int H_NEWINVOKESPECIAL = 8;
  int H_INVOKEINTERFACE = 9;

  // ASM specific stack map frame types, used in {@link ClassVisitor#visitFrame}.

  
An expanded frame. See ClassReader.EXPAND_FRAMES. /** An expanded frame. See {@link ClassReader#EXPAND_FRAMES}. */
  int F_NEW = -1;

  
A compressed frame with complete frame data. /** A compressed frame with complete frame data. */
  int F_FULL = 0;

  
A compressed frame where locals are the same as the locals in the previous frame, except that
additional 1-3 locals are defined, and with an empty stack.
/**
   * A compressed frame where locals are the same as the locals in the previous frame, except that
   * additional 1-3 locals are defined, and with an empty stack.
   */
  int F_APPEND = 1;

  
A compressed frame where locals are the same as the locals in the previous frame, except that
the last 1-3 locals are absent and with an empty stack.
/**
   * A compressed frame where locals are the same as the locals in the previous frame, except that
   * the last 1-3 locals are absent and with an empty stack.
   */
  int F_CHOP = 2;

  
A compressed frame with exactly the same locals as the previous frame and with an empty stack.
/**
   * A compressed frame with exactly the same locals as the previous frame and with an empty stack.
   */
  int F_SAME = 3;

  
A compressed frame with exactly the same locals as the previous frame and with a single value
on the stack.
/**
   * A compressed frame with exactly the same locals as the previous frame and with a single value
   * on the stack.
   */
  int F_SAME1 = 4;

  // Standard stack map frame element types, used in {@link ClassVisitor#visitFrame}.

  Integer TOP = Frame.ITEM_TOP;
  Integer INTEGER = Frame.ITEM_INTEGER;
  Integer FLOAT = Frame.ITEM_FLOAT;
  Integer DOUBLE = Frame.ITEM_DOUBLE;
  Integer LONG = Frame.ITEM_LONG;
  Integer NULL = Frame.ITEM_NULL;
  Integer UNINITIALIZED_THIS = Frame.ITEM_UNINITIALIZED_THIS;

  // The JVM opcode values (with the MethodVisitor method name used to visit them in comment, and
  // where '-' means 'same method name as on the previous line').
  // See https://docs.oracle.com/javase/specs/jvms/se9/html/jvms-6.html.

  int NOP = 0; // visitInsn
  int ACONST_NULL = 1; // -
  int ICONST_M1 = 2; // -
  int ICONST_0 = 3; // -
  int ICONST_1 = 4; // -
  int ICONST_2 = 5; // -
  int ICONST_3 = 6; // -
  int ICONST_4 = 7; // -
  int ICONST_5 = 8; // -
  int LCONST_0 = 9; // -
  int LCONST_1 = 10; // -
  int FCONST_0 = 11; // -
  int FCONST_1 = 12; // -
  int FCONST_2 = 13; // -
  int DCONST_0 = 14; // -
  int DCONST_1 = 15; // -
  int BIPUSH = 16; // visitIntInsn
  int SIPUSH = 17; // -
  int LDC = 18; // visitLdcInsn
  int ILOAD = 21; // visitVarInsn
  int LLOAD = 22; // -
  int FLOAD = 23; // -
  int DLOAD = 24; // -
  int ALOAD = 25; // -
  int IALOAD = 46; // visitInsn
  int LALOAD = 47; // -
  int FALOAD = 48; // -
  int DALOAD = 49; // -
  int AALOAD = 50; // -
  int BALOAD = 51; // -
  int CALOAD = 52; // -
  int SALOAD = 53; // -
  int ISTORE = 54; // visitVarInsn
  int LSTORE = 55; // -
  int FSTORE = 56; // -
  int DSTORE = 57; // -
  int ASTORE = 58; // -
  int IASTORE = 79; // visitInsn
  int LASTORE = 80; // -
  int FASTORE = 81; // -
  int DASTORE = 82; // -
  int AASTORE = 83; // -
  int BASTORE = 84; // -
  int CASTORE = 85; // -
  int SASTORE = 86; // -
  int POP = 87; // -
  int POP2 = 88; // -
  int DUP = 89; // -
  int DUP_X1 = 90; // -
  int DUP_X2 = 91; // -
  int DUP2 = 92; // -
  int DUP2_X1 = 93; // -
  int DUP2_X2 = 94; // -
  int SWAP = 95; // -
  int IADD = 96; // -
  int LADD = 97; // -
  int FADD = 98; // -
  int DADD = 99; // -
  int ISUB = 100; // -
  int LSUB = 101; // -
  int FSUB = 102; // -
  int DSUB = 103; // -
  int IMUL = 104; // -
  int LMUL = 105; // -
  int FMUL = 106; // -
  int DMUL = 107; // -
  int IDIV = 108; // -
  int LDIV = 109; // -
  int FDIV = 110; // -
  int DDIV = 111; // -
  int IREM = 112; // -
  int LREM = 113; // -
  int FREM = 114; // -
  int DREM = 115; // -
  int INEG = 116; // -
  int LNEG = 117; // -
  int FNEG = 118; // -
  int DNEG = 119; // -
  int ISHL = 120; // -
  int LSHL = 121; // -
  int ISHR = 122; // -
  int LSHR = 123; // -
  int IUSHR = 124; // -
  int LUSHR = 125; // -
  int IAND = 126; // -
  int LAND = 127; // -
  int IOR = 128; // -
  int LOR = 129; // -
  int IXOR = 130; // -
  int LXOR = 131; // -
  int IINC = 132; // visitIincInsn
  int I2L = 133; // visitInsn
  int I2F = 134; // -
  int I2D = 135; // -
  int L2I = 136; // -
  int L2F = 137; // -
  int L2D = 138; // -
  int F2I = 139; // -
  int F2L = 140; // -
  int F2D = 141; // -
  int D2I = 142; // -
  int D2L = 143; // -
  int D2F = 144; // -
  int I2B = 145; // -
  int I2C = 146; // -
  int I2S = 147; // -
  int LCMP = 148; // -
  int FCMPL = 149; // -
  int FCMPG = 150; // -
  int DCMPL = 151; // -
  int DCMPG = 152; // -
  int IFEQ = 153; // visitJumpInsn
  int IFNE = 154; // -
  int IFLT = 155; // -
  int IFGE = 156; // -
  int IFGT = 157; // -
  int IFLE = 158; // -
  int IF_ICMPEQ = 159; // -
  int IF_ICMPNE = 160; // -
  int IF_ICMPLT = 161; // -
  int IF_ICMPGE = 162; // -
  int IF_ICMPGT = 163; // -
  int IF_ICMPLE = 164; // -
  int IF_ACMPEQ = 165; // -
  int IF_ACMPNE = 166; // -
  int GOTO = 167; // -
  int JSR = 168; // -
  int RET = 169; // visitVarInsn
  int TABLESWITCH = 170; // visiTableSwitchInsn
  int LOOKUPSWITCH = 171; // visitLookupSwitch
  int IRETURN = 172; // visitInsn
  int LRETURN = 173; // -
  int FRETURN = 174; // -
  int DRETURN = 175; // -
  int ARETURN = 176; // -
  int RETURN = 177; // -
  int GETSTATIC = 178; // visitFieldInsn
  int PUTSTATIC = 179; // -
  int GETFIELD = 180; // -
  int PUTFIELD = 181; // -
  int INVOKEVIRTUAL = 182; // visitMethodInsn
  int INVOKESPECIAL = 183; // -
  int INVOKESTATIC = 184; // -
  int INVOKEINTERFACE = 185; // -
  int INVOKEDYNAMIC = 186; // visitInvokeDynamicInsn
  int NEW = 187; // visitTypeInsn
  int NEWARRAY = 188; // visitIntInsn
  int ANEWARRAY = 189; // visitTypeInsn
  int ARRAYLENGTH = 190; // visitInsn
  int ATHROW = 191; // -
  int CHECKCAST = 192; // visitTypeInsn
  int INSTANCEOF = 193; // -
  int MONITORENTER = 194; // visitInsn
  int MONITOREXIT = 195; // -
  int MULTIANEWARRAY = 197; // visitMultiANewArrayInsn
  int IFNULL = 198; // visitJumpInsn
  int IFNONNULL = 199; // -
}