constants.js

// 
// constants.js 
//
// Kopiluwak. Copyright (c) 2020 Ben Zotto
//
// This module contains the constants defined within the JVM spec.
//

//
// Constant pool tags
// 

const CONSTANT_Class = 7;
const CONSTANT_Fieldref	= 9;
const CONSTANT_Methodref = 10;
const CONSTANT_InterfaceMethodref = 11;
const CONSTANT_String = 8;
const CONSTANT_Integer = 3;
const CONSTANT_Float = 4;
const CONSTANT_Long	= 5;
const CONSTANT_Double = 6;
const CONSTANT_NameAndType = 12;
const CONSTANT_Utf8	= 1;
const CONSTANT_MethodHandle	= 15;
const CONSTANT_MethodType = 16;
const CONSTANT_InvokeDynamic = 18;

//
// Access flags for classes, fields, and methods. Some values are reused.
//

const ACC_PUBLIC = 0x0001;	    	// Declared public; may be accessed from outside its package.
const ACC_PRIVATE = 0x0002; 		// Declared private; accessible only within the defining class.
const ACC_PROTECTED = 0x0004; 		// Declared protected; may be accessed within subclasses.
const ACC_STATIC = 0x0008; 			// Declared static.
const ACC_FINAL = 0x0010; 			// Declared final; must not be overridden (§5.4.5) / no subclasses allowed.
const ACC_SYNCHRONIZED = 0x0020; 	// Declared synchronized; invocation is wrapped by a monitor use.
const ACC_SUPER	 = 0x0020;			// Treat superclass methods specially when invoked by the invokespecial instruction.
const ACC_BRIDGE = 0x0040; 			// A bridge method, generated by the compiler.
const ACC_VOLATILE = 0x0040;		// Declared volatile; cannot be cached.
const ACC_TRANSIENT = 0x0080;		// Declared transient; not written or read by a persistent object manager.
const ACC_VARARGS = 0x0080; 		// Declared with variable number of arguments.
const ACC_NATIVE = 0x0100;			// Declared native; implemented in a language other than Java.
const ACC_INTERFACE	= 0x0200;		// Is an interface, not a class.
const ACC_ABSTRACT = 0x0400;		// Declared abstract; no implementation is provided.
const ACC_STRICT = 0x0800;			// Declared strictfp; floating-point mode is FP-strict.
const ACC_SYNTHETIC = 0x1000; 		// Declared synthetic; not present in the source code
const ACC_ANNOTATION = 0x2000;		// Declared as an annotation type.
const ACC_ENUM = 0x4000;			// Declared as an enum type.

function AccessFlagIsSet(field, flag) { return (field & flag) != 0; }

//
// Method handle kinds
//

const REF_getField = 1;
const REF_getStatic	= 2;
const REF_putField = 3;
const REF_putStatic = 4;
const REF_invokeVirtual = 5;
const REF_invokeStatic = 6;
const REF_invokeSpecial	= 7;
const REF_newInvokeSpecial = 8;
const REF_invokeInterface = 9;

//
// Array types
//

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

//
// VM Instructions and their opcodes
//

const INSTR_aaload = 0x32;
const INSTR_aastore = 0x53;
const INSTR_aconst_null = 0x01;
const INSTR_aload = 0x19;
const INSTR_aload_0 = 0x2A;
const INSTR_aload_1 = 0x2B;
const INSTR_aload_2 = 0x2C;
const INSTR_aload_3 = 0x2D;
const INSTR_anewarray = 0xBD;
const INSTR_areturn = 0xB0;
const INSTR_arraylength = 0xBE;
const INSTR_astore = 0x3A;
const INSTR_astore_0 = 0x4B;
const INSTR_astore_1 = 0x4C;
const INSTR_astore_2 = 0x4D;
const INSTR_astore_3 = 0x4E;
const INSTR_athrow = 0xBF;
const INSTR_baload = 0x33;
const INSTR_bastore = 0x54;
const INSTR_bipush = 0x10;
const INSTR_caload = 0x34;
const INSTR_castore = 0x55;
const INSTR_checkcast = 0xC0;
const INSTR_d2f = 0x90;
const INSTR_d2i = 0x8E;
const INSTR_d2l = 0x8F;
const INSTR_dadd = 0x63;
const INSTR_daload = 0x31;
const INSTR_dastore = 0x52;
const INSTR_dcmpg = 0x98;
const INSTR_dcmpl = 0x97;
const INSTR_dconst_0 = 0x0E;
const INSTR_dconst_1 = 0x0F;
const INSTR_ddiv = 0x6F;
const INSTR_dload = 0x18;
const INSTR_dload_0 = 0x26;
const INSTR_dload_1 = 0x27;
const INSTR_dload_2 = 0x28;
const INSTR_dload_3 = 0x29;
const INSTR_dmul = 0x6B;
const INSTR_dneg = 0x77;
const INSTR_drem = 0x73;
const INSTR_dreturn = 0xAF;
const INSTR_dstore = 0x39;
const INSTR_dstore_0 = 0x47;
const INSTR_dstore_1 = 0x48;
const INSTR_dstore_2 = 0x49;
const INSTR_dstore_3 = 0x4A;
const INSTR_dsub = 0x67;
const INSTR_dup = 0x59;
const INSTR_dup_x1 = 0x5A;
const INSTR_dup_x2 = 0x5B;
const INSTR_dup2 = 0x5C;
const INSTR_dup2_x1 = 0x5D;
const INSTR_dup2_x2 = 0x5E;
const INSTR_f2d = 0x8D;
const INSTR_f2i = 0x8B;
const INSTR_f2l = 0x8C;
const INSTR_fadd = 0x62;
const INSTR_faload = 0x30;
const INSTR_fastore = 0x51;
const INSTR_fcmpg = 0x96;
const INSTR_fcmpl = 0x95;
const INSTR_fconst_0 = 0x0B;
const INSTR_fconst_1 = 0x0C;
const INSTR_fconst_2 = 0x0D;
const INSTR_fdiv = 0x6E;
const INSTR_fload = 0x17;
const INSTR_fload_0 = 0x22;
const INSTR_fload_1 = 0x23;
const INSTR_fload_2 = 0x24;
const INSTR_fload_3 = 0x25;
const INSTR_fmul = 0x6A;
const INSTR_fneg = 0x76;
const INSTR_frem = 0x72;
const INSTR_freturn = 0xAE;
const INSTR_fstore = 0x38;
const INSTR_fstore_0 = 0x43;
const INSTR_fstore_1 = 0x44;
const INSTR_fstore_2 = 0x45;
const INSTR_fstore_3 = 0x46;
const INSTR_fsub = 0x66;
const INSTR_getfield = 0xB4;
const INSTR_getstatic = 0xB2;
const INSTR_goto = 0xA7;
const INSTR_goto_w = 0xC8;
const INSTR_i2b = 0x91;
const INSTR_i2c = 0x92;
const INSTR_i2d = 0x87;
const INSTR_i2f = 0x86;
const INSTR_i2l = 0x85;
const INSTR_i2s = 0x93;
const INSTR_iadd = 0x60;
const INSTR_iaload = 0x2E;
const INSTR_iand = 0x7E;
const INSTR_iastore = 0x4F;
const INSTR_iconst_m1 = 0x02;
const INSTR_iconst_0 = 0x03;
const INSTR_iconst_1 = 0x04;
const INSTR_iconst_2 = 0x05;
const INSTR_iconst_3 = 0x06;
const INSTR_iconst_4 = 0x07;
const INSTR_iconst_5 = 0x08;
const INSTR_idiv = 0x6C;
const INSTR_if_acmpeq = 0xA5;
const INSTR_if_acmpne = 0xA6;
const INSTR_if_icmpeq = 0x9F;
const INSTR_if_icmpne = 0xA0;
const INSTR_if_icmplt = 0xA1;
const INSTR_if_icmpge = 0xA2;
const INSTR_if_icmpgt = 0xA3;
const INSTR_if_icmple = 0xA4;
const INSTR_ifeq = 0x99;
const INSTR_ifne = 0x9A;
const INSTR_iflt = 0x9B;
const INSTR_ifge = 0x9C;
const INSTR_ifgt = 0x9D;
const INSTR_ifle = 0x9E;
const INSTR_ifnonnull = 0xC7;
const INSTR_ifnull = 0xC6;
const INSTR_iinc = 0x84;
const INSTR_iload = 0x15;
const INSTR_iload_0 = 0x1A;
const INSTR_iload_1 = 0x1B;
const INSTR_iload_2 = 0x1C;
const INSTR_iload_3 = 0x1D;
const INSTR_imul = 0x68;
const INSTR_ineg = 0x74;
const INSTR_instanceof = 0xC1;
const INSTR_invokedynamic = 0xBA;
const INSTR_invokeinterface = 0xB9;
const INSTR_invokespecial = 0xB7;
const INSTR_invokestatic = 0xB8;
const INSTR_invokevirtual = 0xB6;
const INSTR_ior = 0x80;
const INSTR_irem = 0x70;
const INSTR_ireturn = 0xAC;
const INSTR_ishl = 0x78;
const INSTR_ishr = 0x7A;
const INSTR_istore = 0x36;
const INSTR_istore_0 = 0x3B;
const INSTR_istore_1 = 0x3C;
const INSTR_istore_2 = 0x3D;
const INSTR_istore_3 = 0x3E;
const INSTR_isub = 0x64;
const INSTR_iushr = 0x7C;
const INSTR_ixor = 0x82;
const INSTR_jsr = 0xA8;
const INSTR_jsr_w = 0xC9;
const INSTR_l2d = 0x8A;
const INSTR_l2f = 0x89;
const INSTR_l2i = 0x88;
const INSTR_ladd = 0x61;
const INSTR_laload = 0x2F;
const INSTR_land = 0x7F;
const INSTR_lastore = 0x50;
const INSTR_lcmp = 0x94;
const INSTR_lconst_0 = 0x09;
const INSTR_lconst_1 = 0x0A;
const INSTR_ldc = 0x12;
const INSTR_ldc_w = 0x13;
const INSTR_ldc2_w = 0x14;
const INSTR_ldiv = 0x6D;
const INSTR_lload = 0x16;
const INSTR_lload_0 = 0x1E;
const INSTR_lload_1 = 0x1F;
const INSTR_lload_2 = 0x20;
const INSTR_lload_3 = 0x21;
const INSTR_lmul = 0x69;
const INSTR_lneg = 0x75;
const INSTR_lookupswitch = 0xAB;
const INSTR_lor = 0x81;
const INSTR_lrem = 0x71;
const INSTR_lreturn = 0xAD;
const INSTR_lshl = 0x79;
const INSTR_lshr = 0x7B;
const INSTR_lstore = 0x37;
const INSTR_lstore_0 = 0x3F;
const INSTR_lstore_1 = 0x40;
const INSTR_lstore_2 = 0x41;
const INSTR_lstore_3 = 0x42;
const INSTR_lsub = 0x65;
const INSTR_lushr = 0x7D;
const INSTR_lxor = 0x83;
const INSTR_monitorenter = 0xC2;
const INSTR_monitorexit = 0xC3;
const INSTR_multianewarray = 0xC5;
const INSTR_new = 0xBB;
const INSTR_newarray = 0xBC;
const INSTR_nop = 0x00;
const INSTR_pop = 0x57;
const INSTR_pop2 = 0x58;
const INSTR_putfield = 0xB5;
const INSTR_putstatic = 0xB3;
const INSTR_ret = 0xA9;
const INSTR_return = 0xB1;
const INSTR_saload = 0x35;
const INSTR_sastore = 0x56;
const INSTR_sipush = 0x11;
const INSTR_swap = 0x5F;
const INSTR_tableswitch = 0xAA;
const INSTR_wide = 0xC4;