for(Enumeration e = ht.keys(); e.hasMoreElements();) {
String name = (String) e.nextElement();
byte[] val = (byte[]) ht.get(name);
- o.writeShort(cp.getUtf8(name).index);
+ o.writeShort(cp.getUtf8Index(name));
o.writeInt(val.length);
o.write(val);
}
package org.ibex.classgen;
public interface CGConst {
- public static final int ACC_PUBLIC = (byte) 0x0001;
- public static final int ACC_FINAL = (byte) 0x0010;
-
// Class only
public static final int ACC_INTERFACE = (byte) 0x0200;
public static final int ACC_SUPER = (byte) 0x0020;
// Field/Method only
+ public static final int ACC_PUBLIC = (byte) 0x0001;
public static final int ACC_PRIVATE = (byte) 0x0002;
public static final int ACC_PROTECTED = (byte) 0x0004;
public static final int ACC_STATIC = (byte) 0x0008;
+ public static final int ACC_FINAL = (byte) 0x0010;
// Class/Method only
public static final int ACC_ABSTRACT = (byte) 0x0400;
public static final int ACC_TRANSIENT = (byte) 0x0080;
// Instructions
- public static final byte NOP = (byte) 0x0;
- public static final byte ACONST_NULL = (byte) 0x01;
- public static final byte ICONST_M1 = (byte) 0x02;
- public static final byte ICONST_0 = (byte) 0x03;
- public static final byte ICONST_1 = (byte) 0x04;
- public static final byte ICONST_2 = (byte) 0x05;
- public static final byte ICONST_3 = (byte) 0x06;
- public static final byte ICONST_4 = (byte) 0x07;
- public static final byte ICONST_5 = (byte) 0x08;
- public static final byte LCONST_0 = (byte) 0x09;
- public static final byte LCONST_1 = (byte) 0x0A;
- public static final byte FCONST_0 = (byte) 0x0B;
- public static final byte FCONST_1 = (byte) 0x0C;
- public static final byte FCONST_2 = (byte) 0x0D;
- public static final byte DCONST_0 = (byte) 0x0E;
- public static final byte DCONST_1 = (byte) 0x0F;
- public static final byte BIPUSH = (byte) 0x10;
- public static final byte SIPUSH = (byte) 0x11;
- public static final byte LDC = (byte) 0x12;
- public static final byte LDC_W = (byte) 0x13;
- public static final byte LDC2_W = (byte) 0x14;
- public static final byte ILOAD = (byte) 0x15;
- public static final byte LLOAD = (byte) 0x16;
- public static final byte FLOAD = (byte) 0x17;
- public static final byte DLOAD = (byte) 0x18;
- public static final byte ALOAD = (byte) 0x19;
- public static final byte ILOAD_0 = (byte) 0x1A;
- public static final byte ILOAD_1 = (byte) 0x1B;
- public static final byte ILOAD_2 = (byte) 0x1C;
- public static final byte ILOAD_3 = (byte) 0x1D;
- public static final byte LLOAD_0 = (byte) 0x1E;
- public static final byte LLOAD_1 = (byte) 0x1F;
- public static final byte LLOAD_2 = (byte) 0x20;
- public static final byte LLOAD_3 = (byte) 0x21;
- public static final byte FLOAD_0 = (byte) 0x22;
- public static final byte FLOAD_1 = (byte) 0x23;
- public static final byte FLOAD_2 = (byte) 0x24;
- public static final byte FLOAD_3 = (byte) 0x25;
- public static final byte DLOAD_0 = (byte) 0x26;
- public static final byte DLOAD_1 = (byte) 0x27;
- public static final byte DLOAD_2 = (byte) 0x28;
- public static final byte DLOAD_3 = (byte) 0x29;
- public static final byte ALOAD_0 = (byte) 0x2A;
- public static final byte ALOAD_1 = (byte) 0x2B;
- public static final byte ALOAD_2 = (byte) 0x2C;
- public static final byte ALOAD_3 = (byte) 0x2D;
- public static final byte IALOAD = (byte) 0x2E;
- public static final byte LALOAD = (byte) 0x2F;
- public static final byte FALOAD = (byte) 0x30;
- public static final byte DALOAD = (byte) 0x31;
- public static final byte AALOAD = (byte) 0x32;
- public static final byte BALOAD = (byte) 0x33;
- public static final byte CALOAD = (byte) 0x34;
- public static final byte SALOAD = (byte) 0x35;
- public static final byte ISTORE = (byte) 0x36;
- public static final byte LSTORE = (byte) 0x37;
- public static final byte FSTORE = (byte) 0x38;
- public static final byte DSTORE = (byte) 0x39;
- public static final byte ASTORE = (byte) 0x3A;
- public static final byte ISTORE_0 = (byte) 0x3B;
- public static final byte ISTORE_1 = (byte) 0x3C;
- public static final byte ISTORE_2 = (byte) 0x3D;
- public static final byte ISTORE_3 = (byte) 0x3E;
- public static final byte LSTORE_0 = (byte) 0x3F;
- public static final byte LSTORE_1 = (byte) 0x40;
- public static final byte LSTORE_2 = (byte) 0x41;
- public static final byte LSTORE_3 = (byte) 0x42;
- public static final byte FSTORE_0 = (byte) 0x43;
- public static final byte FSTORE_1 = (byte) 0x44;
- public static final byte FSTORE_2 = (byte) 0x45;
- public static final byte FSTORE_3 = (byte) 0x46;
- public static final byte DSTORE_0 = (byte) 0x47;
- public static final byte DSTORE_1 = (byte) 0x48;
- public static final byte DSTORE_2 = (byte) 0x49;
- public static final byte DSTORE_3 = (byte) 0x4A;
- public static final byte ASTORE_0 = (byte) 0x4B;
- public static final byte ASTORE_1 = (byte) 0x4C;
- public static final byte ASTORE_2 = (byte) 0x4D;
- public static final byte ASTORE_3 = (byte) 0x4E;
- public static final byte IASTORE = (byte) 0x4F;
- public static final byte LASTORE = (byte) 0x50;
- public static final byte FASTORE = (byte) 0x51;
- public static final byte DASTORE = (byte) 0x52;
- public static final byte AASTORE = (byte) 0x53;
- public static final byte BASTORE = (byte) 0x54;
- public static final byte CASTORE = (byte) 0x55;
- public static final byte SASTORE = (byte) 0x56;
- public static final byte POP = (byte) 0x57;
- public static final byte POP2 = (byte) 0x58;
- public static final byte DUP = (byte) 0x59;
- public static final byte DUP_X1 = (byte) 0x5A;
- public static final byte DUP_X2 = (byte) 0x5B;
- public static final byte DUP2 = (byte) 0x5C;
- public static final byte DUP2_X1 = (byte) 0x5D;
- public static final byte DUP2_X2 = (byte) 0x5E;
- public static final byte SWAP = (byte) 0x5F;
- public static final byte IADD = (byte) 0x60;
- public static final byte LADD = (byte) 0x61;
- public static final byte FADD = (byte) 0x62;
- public static final byte DADD = (byte) 0x63;
- public static final byte ISUB = (byte) 0x64;
- public static final byte LSUB = (byte) 0x65;
- public static final byte FSUB = (byte) 0x66;
- public static final byte DSUB = (byte) 0x67;
- public static final byte IMUL = (byte) 0x68;
- public static final byte LMUL = (byte) 0x69;
- public static final byte FMUL = (byte) 0x6A;
- public static final byte DMUL = (byte) 0x6B;
- public static final byte IDIV = (byte) 0x6C;
- public static final byte LDIV = (byte) 0x6D;
- public static final byte FDIV = (byte) 0x6E;
- public static final byte DDIV = (byte) 0x6F;
- public static final byte IREM = (byte) 0x70;
- public static final byte LREM = (byte) 0x71;
- public static final byte FREM = (byte) 0x72;
- public static final byte DREM = (byte) 0x73;
- public static final byte INET = (byte) 0x74;
- public static final byte LNEG = (byte) 0x75;
- public static final byte FNEG = (byte) 0x76;
- public static final byte DNEG = (byte) 0x77;
- public static final byte ISHL = (byte) 0x78;
- public static final byte LSHL = (byte) 0x79;
- public static final byte ISHR = (byte) 0x7A;
- public static final byte LSHR = (byte) 0x7B;
- public static final byte IUSHR = (byte) 0x7C;
- public static final byte LUSHR = (byte) 0x7D;
- public static final byte IAND = (byte) 0x7E;
- public static final byte LAND = (byte) 0x7F;
- public static final byte IOR = (byte) 0x80;
- public static final byte LOR = (byte) 0x81;
- public static final byte IXOR = (byte) 0x82;
- public static final byte LXOR = (byte) 0x83;
- public static final byte IINC = (byte) 0x84;
- public static final byte I2L = (byte) 0x85;
- public static final byte I2F = (byte) 0x86;
- public static final byte I2D = (byte) 0x87;
- public static final byte L2I = (byte) 0x88;
- public static final byte L2F = (byte) 0x89;
- public static final byte L2D = (byte) 0x8A;
- public static final byte F2I = (byte) 0x8B;
- public static final byte F2L = (byte) 0x8C;
- public static final byte F2D = (byte) 0x8D;
- public static final byte D2I = (byte) 0x8E;
- public static final byte D2L = (byte) 0x8F;
- public static final byte D2F = (byte) 0x90;
- public static final byte I2B = (byte) 0x91;
- public static final byte I2C = (byte) 0x92;
- public static final byte I2S = (byte) 0x93;
- public static final byte LCMP = (byte) 0x94;
- public static final byte FCMPL = (byte) 0x95;
- public static final byte FCMPG = (byte) 0x96;
- public static final byte DCMPL = (byte) 0x97;
- public static final byte DCMPG = (byte) 0x98;
- public static final byte IFEQ = (byte) 0x99;
- public static final byte IFNE = (byte) 0x9A;
- public static final byte IFLT = (byte) 0x9B;
- public static final byte IFGE = (byte) 0x9C;
- public static final byte IFGT = (byte) 0x9D;
- public static final byte IFLE = (byte) 0x9E;
- public static final byte IF_ICMPEQ = (byte) 0x9F;
- public static final byte IF_ICMPNE = (byte) 0xA0;
- public static final byte IF_ICMPLT = (byte) 0xA1;
- public static final byte IF_ICMPGE = (byte) 0xA2;
- public static final byte IF_ICMPGT = (byte) 0xA3;
- public static final byte IF_ICMPLE = (byte) 0xA4;
- public static final byte IF_ACMPEQ = (byte) 0xA5;
- public static final byte IF_ACMPNE = (byte) 0xA6;
- public static final byte GOTO = (byte) 0xA7;
- public static final byte JSR = (byte) 0xA8;
- public static final byte RET = (byte) 0xA9;
- public static final byte TABLESWITCH = (byte) 0xAA;
- public static final byte LOOKUPSWITCH = (byte) 0xAB;
- public static final byte IRETURN = (byte) 0xAC;
- public static final byte LRETURN = (byte) 0xAD;
- public static final byte FRETURN = (byte) 0xAE;
- public static final byte DRETURN = (byte) 0xAF;
- public static final byte ARETURN = (byte) 0xB0;
- public static final byte RETURN = (byte) 0xB1;
- public static final byte GETSTATIC = (byte) 0xB2;
- public static final byte PUTSTATIC = (byte) 0xB3;
- public static final byte GETFIELD = (byte) 0xB4;
- public static final byte PUTFIELD = (byte) 0xB5;
- public static final byte INVOKEVIRTUAL = (byte) 0xB6;
- public static final byte INVOKESPECIAL = (byte) 0xB7;
- public static final byte INVOKESTATIC = (byte) 0xB8;
- public static final byte INVOKEINTERFACE = (byte) 0xB9;
- public static final byte NEW = (byte) 0xBB;
- public static final byte NEWARRAY = (byte) 0xBC;
- public static final byte ANEWARRAY = (byte) 0xBD;
- public static final byte ARRAYLENGTH = (byte) 0xBE;
- public static final byte ATHROW = (byte) 0xBF;
- public static final byte CHECKCAST = (byte) 0xC0;
- public static final byte INSTANCEOF = (byte) 0xC1;
- public static final byte MONITORENTER = (byte) 0xC2;
- public static final byte MONITOREXIT = (byte) 0xC3;
- public static final byte WIDE = (byte) 0xC4;
- public static final byte MULTIANEWARRAY = (byte) 0xC5;
- public static final byte IFNULL = (byte) 0xC6;
- public static final byte IFNONNULL = (byte) 0xC7;
- public static final byte GOTO_W = (byte) 0xC8;
- public static final byte JSR_W = (byte) 0xC9;
+
+ // NOTE: DO NOT modify or remove the number in the comments
+
+ public static final byte NOP = (byte) 0x0; // 0
+ public static final byte ACONST_NULL = (byte) 0x01; // 0
+ public static final byte ICONST_M1 = (byte) 0x02; // 0
+ public static final byte ICONST_0 = (byte) 0x03; // 0
+ public static final byte ICONST_1 = (byte) 0x04; // 0
+ public static final byte ICONST_2 = (byte) 0x05; // 0
+ public static final byte ICONST_3 = (byte) 0x06; // 0
+ public static final byte ICONST_4 = (byte) 0x07; // 0
+ public static final byte ICONST_5 = (byte) 0x08; // 0
+ public static final byte LCONST_0 = (byte) 0x09; // 0
+ public static final byte LCONST_1 = (byte) 0x0A; // 0
+ public static final byte FCONST_0 = (byte) 0x0B; // 0
+ public static final byte FCONST_1 = (byte) 0x0C; // 0
+ public static final byte FCONST_2 = (byte) 0x0D; // 0
+ public static final byte DCONST_0 = (byte) 0x0E; // 0
+ public static final byte DCONST_1 = (byte) 0x0F; // 0
+ public static final byte BIPUSH = (byte) 0x10; // 1
+ public static final byte SIPUSH = (byte) 0x11; // 2
+ public static final byte LDC = (byte) 0x12; // 1C
+ public static final byte LDC_W = (byte) 0x13; // 2C
+ public static final byte LDC2_W = (byte) 0x14; // 2C
+ public static final byte ILOAD = (byte) 0x15; // 1
+ public static final byte LLOAD = (byte) 0x16; // 1
+ public static final byte FLOAD = (byte) 0x17; // 1
+ public static final byte DLOAD = (byte) 0x18; // 1
+ public static final byte ALOAD = (byte) 0x19; // 1
+ public static final byte ILOAD_0 = (byte) 0x1A; // 0
+ public static final byte ILOAD_1 = (byte) 0x1B; // 0
+ public static final byte ILOAD_2 = (byte) 0x1C; // 0
+ public static final byte ILOAD_3 = (byte) 0x1D; // 0
+ public static final byte LLOAD_0 = (byte) 0x1E; // 0
+ public static final byte LLOAD_1 = (byte) 0x1F; // 0
+ public static final byte LLOAD_2 = (byte) 0x20; // 0
+ public static final byte LLOAD_3 = (byte) 0x21; // 0
+ public static final byte FLOAD_0 = (byte) 0x22; // 0
+ public static final byte FLOAD_1 = (byte) 0x23; // 0
+ public static final byte FLOAD_2 = (byte) 0x24; // 0
+ public static final byte FLOAD_3 = (byte) 0x25; // 0
+ public static final byte DLOAD_0 = (byte) 0x26; // 0
+ public static final byte DLOAD_1 = (byte) 0x27; // 0
+ public static final byte DLOAD_2 = (byte) 0x28; // 0
+ public static final byte DLOAD_3 = (byte) 0x29; // 0
+ public static final byte ALOAD_0 = (byte) 0x2A; // 0
+ public static final byte ALOAD_1 = (byte) 0x2B; // 0
+ public static final byte ALOAD_2 = (byte) 0x2C; // 0
+ public static final byte ALOAD_3 = (byte) 0x2D; // 0
+ public static final byte IALOAD = (byte) 0x2E; // 0
+ public static final byte LALOAD = (byte) 0x2F; // 0
+ public static final byte FALOAD = (byte) 0x30; // 0
+ public static final byte DALOAD = (byte) 0x31; // 0
+ public static final byte AALOAD = (byte) 0x32; // 0
+ public static final byte BALOAD = (byte) 0x33; // 0
+ public static final byte CALOAD = (byte) 0x34; // 0
+ public static final byte SALOAD = (byte) 0x35; // 0
+ public static final byte ISTORE = (byte) 0x36; // 0
+ public static final byte LSTORE = (byte) 0x37; // 9
+ public static final byte FSTORE = (byte) 0x38; // 0
+ public static final byte DSTORE = (byte) 0x39; // 0
+ public static final byte ASTORE = (byte) 0x3A; // 0
+ public static final byte ISTORE_0 = (byte) 0x3B; // 0
+ public static final byte ISTORE_1 = (byte) 0x3C; // 0
+ public static final byte ISTORE_2 = (byte) 0x3D; // 0
+ public static final byte ISTORE_3 = (byte) 0x3E; // 0
+ public static final byte LSTORE_0 = (byte) 0x3F; // 0
+ public static final byte LSTORE_1 = (byte) 0x40; // 0
+ public static final byte LSTORE_2 = (byte) 0x41; // 0
+ public static final byte LSTORE_3 = (byte) 0x42; // 0
+ public static final byte FSTORE_0 = (byte) 0x43; // 0
+ public static final byte FSTORE_1 = (byte) 0x44; // 0
+ public static final byte FSTORE_2 = (byte) 0x45; // 0
+ public static final byte FSTORE_3 = (byte) 0x46; // 0
+ public static final byte DSTORE_0 = (byte) 0x47; // 0
+ public static final byte DSTORE_1 = (byte) 0x48; // 0
+ public static final byte DSTORE_2 = (byte) 0x49; // 0
+ public static final byte DSTORE_3 = (byte) 0x4A; // 0
+ public static final byte ASTORE_0 = (byte) 0x4B; // 0
+ public static final byte ASTORE_1 = (byte) 0x4C; // 0
+ public static final byte ASTORE_2 = (byte) 0x4D; // 0
+ public static final byte ASTORE_3 = (byte) 0x4E; // 0
+ public static final byte IASTORE = (byte) 0x4F; // 0
+ public static final byte LASTORE = (byte) 0x50; // 0
+ public static final byte FASTORE = (byte) 0x51; // 0
+ public static final byte DASTORE = (byte) 0x52; // 0
+ public static final byte AASTORE = (byte) 0x53; // 0
+ public static final byte BASTORE = (byte) 0x54; // 0
+ public static final byte CASTORE = (byte) 0x55; // 0
+ public static final byte SASTORE = (byte) 0x56; // 0
+ public static final byte POP = (byte) 0x57; // 0
+ public static final byte POP2 = (byte) 0x58; // 0
+ public static final byte DUP = (byte) 0x59; // 0
+ public static final byte DUP_X1 = (byte) 0x5A; // 0
+ public static final byte DUP_X2 = (byte) 0x5B; // 0
+ public static final byte DUP2 = (byte) 0x5C; // 0
+ public static final byte DUP2_X1 = (byte) 0x5D; // 0
+ public static final byte DUP2_X2 = (byte) 0x5E; // 0
+ public static final byte SWAP = (byte) 0x5F; // 0
+ public static final byte IADD = (byte) 0x60; // 0
+ public static final byte LADD = (byte) 0x61; // 0
+ public static final byte FADD = (byte) 0x62; // 0
+ public static final byte DADD = (byte) 0x63; // 0
+ public static final byte ISUB = (byte) 0x64; // 0
+ public static final byte LSUB = (byte) 0x65; // 0
+ public static final byte FSUB = (byte) 0x66; // 0
+ public static final byte DSUB = (byte) 0x67; // 0
+ public static final byte IMUL = (byte) 0x68; // 0
+ public static final byte LMUL = (byte) 0x69; // 0
+ public static final byte FMUL = (byte) 0x6A; // 0
+ public static final byte DMUL = (byte) 0x6B; // 0
+ public static final byte IDIV = (byte) 0x6C; // 0
+ public static final byte LDIV = (byte) 0x6D; // 0
+ public static final byte FDIV = (byte) 0x6E; // 0
+ public static final byte DDIV = (byte) 0x6F; // 0
+ public static final byte IREM = (byte) 0x70; // 0
+ public static final byte LREM = (byte) 0x71; // 0
+ public static final byte FREM = (byte) 0x72; // 0
+ public static final byte DREM = (byte) 0x73; // 0
+ public static final byte INEG = (byte) 0x74; // 0
+ public static final byte LNEG = (byte) 0x75; // 0
+ public static final byte FNEG = (byte) 0x76; // 0
+ public static final byte DNEG = (byte) 0x77; // 0
+ public static final byte ISHL = (byte) 0x78; // 0
+ public static final byte LSHL = (byte) 0x79; // 0
+ public static final byte ISHR = (byte) 0x7A; // 0
+ public static final byte LSHR = (byte) 0x7B; // 0
+ public static final byte IUSHR = (byte) 0x7C; // 0
+ public static final byte LUSHR = (byte) 0x7D; // 0
+ public static final byte IAND = (byte) 0x7E; // 0
+ public static final byte LAND = (byte) 0x7F; // 0
+ public static final byte IOR = (byte) 0x80; // 0
+ public static final byte LOR = (byte) 0x81; // 0
+ public static final byte IXOR = (byte) 0x82; // 0
+ public static final byte LXOR = (byte) 0x83; // 0
+ public static final byte IINC = (byte) 0x84; // 2
+ public static final byte I2L = (byte) 0x85; // 0
+ public static final byte I2F = (byte) 0x86; // 0
+ public static final byte I2D = (byte) 0x87; // 0
+ public static final byte L2I = (byte) 0x88; // 0
+ public static final byte L2F = (byte) 0x89; // 0
+ public static final byte L2D = (byte) 0x8A; // 0
+ public static final byte F2I = (byte) 0x8B; // 0
+ public static final byte F2L = (byte) 0x8C; // 0
+ public static final byte F2D = (byte) 0x8D; // 0
+ public static final byte D2I = (byte) 0x8E; // 0
+ public static final byte D2L = (byte) 0x8F; // 0
+ public static final byte D2F = (byte) 0x90; // 0
+ public static final byte I2B = (byte) 0x91; // 0
+ public static final byte I2C = (byte) 0x92; // 0
+ public static final byte I2S = (byte) 0x93; // 0
+ public static final byte LCMP = (byte) 0x94; // 0
+ public static final byte FCMPL = (byte) 0x95; // 0
+ public static final byte FCMPG = (byte) 0x96; // 0
+ public static final byte DCMPL = (byte) 0x97; // 0
+ public static final byte DCMPG = (byte) 0x98; // 0
+ public static final byte IFEQ = (byte) 0x99; // 2B
+ public static final byte IFNE = (byte) 0x9A; // 2B
+ public static final byte IFLT = (byte) 0x9B; // 2B
+ public static final byte IFGE = (byte) 0x9C; // 2B
+ public static final byte IFGT = (byte) 0x9D; // 2B
+ public static final byte IFLE = (byte) 0x9E; // 2B
+ public static final byte IF_ICMPEQ = (byte) 0x9F; // 2B
+ public static final byte IF_ICMPNE = (byte) 0xA0; // 2B
+ public static final byte IF_ICMPLT = (byte) 0xA1; // 2B
+ public static final byte IF_ICMPGE = (byte) 0xA2; // 2B
+ public static final byte IF_ICMPGT = (byte) 0xA3; // 2B
+ public static final byte IF_ICMPLE = (byte) 0xA4; // 2B
+ public static final byte IF_ACMPEQ = (byte) 0xA5; // 2B
+ public static final byte IF_ACMPNE = (byte) 0xA6; // 2B
+ public static final byte GOTO = (byte) 0xA7; // 2B
+ public static final byte JSR = (byte) 0xA8; // 2B
+ public static final byte RET = (byte) 0xA9; // 1
+ public static final byte TABLESWITCH = (byte) 0xAA; // V
+ public static final byte LOOKUPSWITCH = (byte) 0xAB; // V
+ public static final byte IRETURN = (byte) 0xAC; // 0
+ public static final byte LRETURN = (byte) 0xAD; // 0
+ public static final byte FRETURN = (byte) 0xAE; // 0
+ public static final byte DRETURN = (byte) 0xAF; // 0
+ public static final byte ARETURN = (byte) 0xB0; // 0
+ public static final byte RETURN = (byte) 0xB1; // 0
+ public static final byte GETSTATIC = (byte) 0xB2; // 2C
+ public static final byte PUTSTATIC = (byte) 0xB3; // 2C
+ public static final byte GETFIELD = (byte) 0xB4; // 2C
+ public static final byte PUTFIELD = (byte) 0xB5; // 2C
+ public static final byte INVOKEVIRTUAL = (byte) 0xB6; // 2C
+ public static final byte INVOKESPECIAL = (byte) 0xB7; // 2C
+ public static final byte INVOKESTATIC = (byte) 0xB8; // 2C
+ public static final byte INVOKEINTERFACE = (byte) 0xB9; // 2C
+ public static final byte NEW = (byte) 0xBB; // 2C
+ public static final byte NEWARRAY = (byte) 0xBC; // 1
+ public static final byte ANEWARRAY = (byte) 0xBD; // 2C
+ public static final byte ARRAYLENGTH = (byte) 0xBE; // 0
+ public static final byte ATHROW = (byte) 0xBF; // 0
+ public static final byte CHECKCAST = (byte) 0xC0; // 2C
+ public static final byte INSTANCEOF = (byte) 0xC1; // 2C
+ public static final byte MONITORENTER = (byte) 0xC2; // 0
+ public static final byte MONITOREXIT = (byte) 0xC3; // 0
+ public static final byte WIDE = (byte) 0xC4; // V
+ public static final byte MULTIANEWARRAY = (byte) 0xC5; // 3
+ public static final byte IFNULL = (byte) 0xC6; // 2B
+ public static final byte IFNONNULL = (byte) 0xC7; // 2B
+ public static final byte GOTO_W = (byte) 0xC8; // 4B
+ public static final byte JSR_W = (byte) 0xC9; // 4B
+}
+
+// DO NOT REMOVE THIS
+
+/*
+#!/usr/bin/perl -w
+@ARGV || push @ARGV,$0;
+my @a = ();
+while(<>) {
+ chomp;
+ next unless(m|byte ([A-Z0-9_]+) = .*?([0-9xA-F]+);\s+//\s*(.*)$|i);
+ my ($name,$num) = ($1,hex($2));
+ $_ = $3;
+ my $n = 1;
+ $n |= (s/^(\d+)// ? $1 : (s/^V//||die,7)) << 1;
+ $n |= (1<<4) if(s/^C//);
+ $n |= (1<<5) if(s/^B//);
+ die if(/./);
+ $a[$num] = $n;
+}
+print "private static final byte[] OP_DATA = {\n\t";
+for(my $i=0;$i<256;$i++) {
+ printf "0x%02x%s", $a[$i]||2, $i==255?"\n};\n":($i%16)==15?",\n\t":", ";
}
+__END__
+*/
import org.ibex.classgen.util.*;
-public class CPGen {
+// FEATURE: Add a "hit count" to each entry and optimize the table
+
+class CPGen {
private Hashtable entries = new Hashtable();
private int nextIndex = 1; // 0 is reserved
+ private int count;
private boolean sealed;
CPGen() { }
*/
abstract static class Ent implements Sort.Comparable {
int index;
- public abstract int tag();
- public void dump(DataOutput o) throws IOException { o.writeByte(tag()); }
+ int tag;
+
+ Ent(int tag) { this.tag = tag; }
+
+ int getIndex() { return index; }
+
+ void dump(DataOutput o) throws IOException { o.writeByte(tag); }
+
public int compareTo(Object o) {
if(!(o instanceof Ent)) return 1;
int oi = ((Ent)o).index;
}
}
- abstract static class OneU2Ent extends Ent { int i; public void dump(DataOutput o) throws IOException { super.dump(o); o.writeShort(i); } }
- abstract static class OneU4Ent extends Ent { int i; public void dump(DataOutput o) throws IOException { super.dump(o); o.writeInt(i); } }
- abstract static class TwoU2Ent extends OneU2Ent { int i2; public void dump(DataOutput o) throws IOException { super.dump(o); o.writeShort(i2); } }
- abstract static class TwoU4Ent extends OneU4Ent { int i2; public void dump(DataOutput o) throws IOException { super.dump(o); o.writeInt(i2); } }
+ static class OneU4Ent extends Ent {
+ int i;
+ OneU4Ent(int tag) { super(tag); }
+ void dump(DataOutput o) throws IOException { super.dump(o); o.writeInt(i); }
+ }
- static class IntEnt extends OneU4Ent { public int tag() { return 3; } } // word1: bytes
- static class FloatEnt extends OneU4Ent { public int tag() { return 4; } } // word1: bytes
- static class LongEnt extends TwoU4Ent { public int tag() { return 5; } } // word1/2: bytes
- static class DoubleEnt extends TwoU4Ent { public int tag() { return 6; } } // word1/2: bytes
- static class ClassEnt extends OneU2Ent { public int tag() { return 7; } } // word1: name_index
- static class StringEnt extends OneU2Ent { public int tag() { return 8; } } // word1: string_index
- static class FieldRefEnt extends TwoU2Ent { public int tag() { return 9; } } // word1: class_index word2: name_and_type_index
- static class MethodRefEnt extends TwoU2Ent { public int tag() { return 10; } } // word1: class_index word2: name_and_type_index
- static class IMethodRefEnt extends TwoU2Ent { public int tag() { return 11; } } // word1: class_index word2: name_and_type_index
- static class NameAndTypeEnt extends TwoU2Ent { public int tag() { return 12; } } // word1: name_index word2: descriptor_index
+ static class LongEnt extends Ent {
+ long l;
+ LongEnt(int tag) { super(tag); }
+ void dump(DataOutput o) throws IOException { super.dump(o); o.writeLong(l); }
+ }
- static class Utf8Ent extends Ent {
- String s;
- public int tag() { return 1; }
- public void dump(DataOutput o) throws IOException {
+ static class CPRefEnt extends Ent {
+ Ent e1;
+ Ent e2;
+ CPRefEnt(int tag) { super(tag); }
+ void dump(DataOutput o) throws IOException {
super.dump(o);
- o.writeUTF(s);
+ o.writeShort(e1.index);
+ if(e2 != null) o.writeShort(e2.index);
}
- public String toString() { return "Utf8: " + s; }
+ }
+
+ static class Utf8Ent extends Ent {
+ String s;
+ Utf8Ent() { super(1); }
+ void dump(DataOutput o) throws IOException { super.dump(o); o.writeUTF(s); }
}
/*
public boolean equals(Object o) { return o instanceof Utf8Key && ((Utf8Key)o).s.equals(s); }
public int hashCode() { return ~s.hashCode(); }
}
-
- public static class NameAndType {
- String name;
- String type;
- public NameAndType(String name, String type) { this.name = name; this.type = type; }
- public boolean equals(Object o_) {
- if(!(o_ instanceof NameAndType)) return false;
- NameAndType o = (NameAndType) o_;
- return o.name.equals(name) && o.type.equals(type);
- }
- public int hashCode() { return name.hashCode() ^ type.hashCode(); }
- }
-
- static abstract class FieldMethodRef {
- Type.Object klass;
- NameAndType nameAndType;
- public FieldMethodRef(Type.Object klass, NameAndType nameAndType) { this.klass = klass; this.nameAndType = nameAndType; }
- public boolean equals(Object o_) {
- if(!(o_ instanceof FieldMethodRef)) return false;
- FieldMethodRef o = (FieldMethodRef) o_;
- return o.klass.equals(klass) && o.nameAndType.equals(nameAndType);
- }
- }
-
- public static class FieldRef extends FieldMethodRef { public FieldRef (Type.Object c, NameAndType t) { super(c,t); } }
- public static class MethodRef extends FieldMethodRef { public MethodRef (Type.Object c, NameAndType t) { super(c,t); } }
- public static class IMethodRef extends FieldMethodRef { public IMethodRef(Type.Object c, NameAndType t) { super(c,t); } }
-
+
/*
* Methods
*/
public final Ent get(Object o) { return (Ent) entries.get(o); }
public final Ent getUtf8(String s) { return get(new Utf8Key(s)); }
+ public final int getIndex(Object o) {
+ Ent e = get(o);
+ if(e == null) throw new IllegalStateException("entry not found");
+ return e.getIndex();
+ }
+ public final int getUtf8Index(String s) {
+ Ent e = getUtf8(s);
+ if(e == null) throw new IllegalStateException("entry not found");
+ return e.getIndex();
+ }
- public final Ent addNameAndType(String name, String descriptor) { return add(new NameAndType(name,descriptor)); }
+ public final Ent addNameAndType(String name, String descriptor) { return add(new ClassGen.NameAndType(name,descriptor)); }
public final Ent addUtf8(String s) { return add(new Utf8Key(s)); }
+ // FEATURE: Don't resolve indexes until dump (for optimize)
public final Ent add(Object o) {
if(sealed) throw new IllegalStateException("constant pool is sealed");
if(nextIndex == 65536) throw new ClassGen.Exn("constant pool full");
if(o instanceof Type.Object) {
- ClassEnt ce = new ClassEnt();
- ce.i = addUtf8(((Type.Object)o).internalForm()).index;
+ CPRefEnt ce = new CPRefEnt(7);
+ ce.e1 = addUtf8(((Type.Object)o).internalForm());
ent = ce;
} else if(o instanceof String) {
- StringEnt se = new StringEnt();
- se.i = addUtf8((String)o).index;
- ent = se;
+ CPRefEnt ce = new CPRefEnt(8);
+ ce.e1 = addUtf8((String)o);
+ ent = ce;
} else if(o instanceof Integer) {
- IntEnt ie = new IntEnt();
- ie.i = ((Integer)o).intValue();
- ent = ie;
+ OneU4Ent ue = new OneU4Ent(3);
+ ue.i = ((Integer)o).intValue();
+ ent = ue;
} else if(o instanceof Float) {
- FloatEnt fe = new FloatEnt();
- fe.i = Float.floatToIntBits(((Float)o).floatValue());
- ent = fe;
+ OneU4Ent ue = new OneU4Ent(4);
+ ue.i = Float.floatToIntBits(((Float)o).floatValue());
+ ent = ue;
} else if(o instanceof Long) {
- LongEnt le = new LongEnt();
- long l = ((Long)o).longValue();
- le.i = (int)(l>>>32);
- le.i2 = (int)l;
+ LongEnt le = new LongEnt(5);
+ le.l = ((Long)o).longValue();
ent = le;
} else if(o instanceof Double) {
- DoubleEnt de = new DoubleEnt();
- long l = Double.doubleToLongBits(((Double)o).doubleValue());
- de.i = (int)(l>>>32);
- de.i2 = (int)l;
- ent = de;
+ LongEnt le = new LongEnt(6);
+ le.l = Double.doubleToLongBits(((Double)o).doubleValue());
+ ent = le;
} else if(o instanceof Utf8Key) {
Utf8Ent ue = new Utf8Ent();
ue.s = ((Utf8Key)o).s;
ent = ue;
- } else if(o instanceof NameAndType) {
- NameAndTypeEnt ne = new NameAndTypeEnt();
- NameAndType key = (NameAndType) o;
- ne.i = addUtf8(key.name).index;
- ne.i2 = addUtf8(key.type).index;
- ent = ne;
- } else if(o instanceof FieldMethodRef) {
- FieldMethodRef key = (FieldMethodRef) o;
- TwoU2Ent fme;
- if(o instanceof MethodRef) fme = new MethodRefEnt();
- else if(o instanceof IMethodRef) fme = new IMethodRefEnt();
- else if(o instanceof FieldRef) fme = new FieldRefEnt();
- else throw new Error("should never happen");
- fme.i = add(key.klass).index;
- fme.i2 = add(key.nameAndType).index;
- ent = fme;
+ } else if(o instanceof ClassGen.NameAndType) {
+ CPRefEnt ce = new CPRefEnt(12);
+ ClassGen.NameAndType key = (ClassGen.NameAndType) o;
+ ce.e1 = addUtf8(key.name);
+ ce.e2 = addUtf8(key.type);
+ ent = ce;
+ } else if(o instanceof ClassGen.FieldMethodRef) {
+ ClassGen.FieldMethodRef key = (ClassGen.FieldMethodRef) o;
+ int tag = o instanceof FieldRef ? 9 : o instanceof MethodRef ? 10 : o instanceof ClassGen.InterfaceMethodRef ? 11 : 0;
+ if(tag == 0) throw new Error("should never happen");
+ CPRefEnt ce = new CPRefEnt(tag);
+ ce.e1 = add(key.klass);
+ ce.e2 = add(key.nameAndType);
+ ent = ce;
} else {
throw new IllegalArgumentException("Unknown type passed to add");
}
ent.index = nextIndex++;
+ if(ent instanceof LongEnt) nextIndex++;
+ count++;
+
entries.put(o,ent);
return ent;
}
public int size() { return nextIndex; }
public void dump(DataOutput o) throws IOException {
- Ent[] ents = new Ent[nextIndex-1];
+ Ent[] ents = new Ent[count];
int i=0;
Enumeration e = entries.keys();
while(e.hasMoreElements()) ents[i++] = (Ent) entries.get(e.nextElement());
+ if(i != count) throw new Error("should never happen");
Sort.sort(ents);
for(i=0;i<ents.length;i++) {
- //System.err.println("" + (i+1) + ": " + ents[i]);
+ System.err.println("" + (i+1) + ": " + ents[i]);
ents[i].dump(o);
}
}
return mg;
}
+ public final FieldGen addField(String name, Type type, int flags) {
+ FieldGen fg = new FieldGen(this,name,type,flags);
+ fields.addElement(fg);
+ return fg;
+ }
+
public void dump(String s) throws IOException { dump(new File(s)); }
public void dump(File f) throws IOException {
if(f.isDirectory()) {
cp.seal();
o.writeInt(0xcafebabe); // magic
+ // FIXME: What should this be for JDK 1.1 ?
o.writeShort(0); // minor_version
o.writeShort(46); // major_version
+
o.writeShort(cp.size()); // constant_pool_count
cp.dump(o); // constant_pool
+
o.writeShort(flags);
- o.writeShort(cp.get(thisType).index); // this_class
- o.writeShort(cp.get(superType).index); // super_class
+ o.writeShort(cp.getIndex(thisType)); // this_class
+ o.writeShort(cp.getIndex(superType)); // super_class
+
o.writeShort(interfaces.size()); // interfaces_count
- for(int i=0;i<interfaces.size();i++) o.writeShort(cp.get((Type.Object)interfaces.elementAt(i)).index); // interfaces
+ for(int i=0;i<interfaces.size();i++) o.writeShort(cp.getIndex(interfaces.elementAt(i))); // interfaces
+
o.writeShort(fields.size()); // fields_count
for(int i=0;i<fields.size();i++) ((FieldGen)fields.elementAt(i)).dump(o); // fields
+
o.writeShort(methods.size()); // methods_count
for(int i=0;i<methods.size();i++) ((MethodGen)methods.elementAt(i)).dump(o); // methods
+
o.writeShort(attributes.size()); // attributes_count
attributes.dump(o); // attributes
}
public Exn(String s) { super(s); }
}
+ // FEATURE: Remove these - they are just here to be compatible with the old api
+ public final static MethodRef methodRef(Type.Object c, String name, Type ret, Type[] args) {
+ return new MethodRef(c,name,ret,args);
+ }
+ public final static FieldRef fieldRef(Type.Object c, String name, Type type) {
+ return new FieldRef(c,name,type);
+ }
+
+ public static class NameAndType {
+ String name;
+ String type;
+ NameAndType(String name, String type) { this.name = name; this.type = type; }
+ public boolean equals(Object o_) {
+ if(!(o_ instanceof NameAndType)) return false;
+ NameAndType o = (NameAndType) o_;
+ return o.name.equals(name) && o.type.equals(type);
+ }
+ public int hashCode() { return name.hashCode() ^ type.hashCode(); }
+ }
+
+ public static abstract class FieldMethodRef {
+ Type.Object klass;
+ NameAndType nameAndType;
+ FieldMethodRef(Type.Object klass, NameAndType nameAndType) { this.klass = klass; this.nameAndType = nameAndType; }
+ public boolean equals(Object o_) {
+ if(!(o_ instanceof FieldMethodRef)) return false;
+ FieldMethodRef o = (FieldMethodRef) o_;
+ return o.klass.equals(klass) && o.nameAndType.equals(nameAndType);
+ }
+ public int hashCode() { return klass.hashCode() ^ nameAndType.hashCode(); }
+ }
+
+ public static class InterfaceMethodRef extends FieldMethodRef {
+ public InterfaceMethodRef(MethodRef r) { super(r.klass,r.nameAndType); }
+ public InterfaceMethodRef(Type.Object c, NameAndType t) { super(c,t); }
+ }
+
public static void main(String[] args) throws Exception {
+ Type.Object me = new Type.Object("Test");
ClassGen cg = new ClassGen("Test","java.lang.Object",ACC_PUBLIC|ACC_SUPER|ACC_FINAL);
+ FieldGen fg = cg.addField("foo",Type.INT,ACC_PUBLIC|ACC_STATIC);
+
MethodGen mg = cg.addMethod("main",Type.VOID,new Type[]{Type.arrayType(Type.STRING)},ACC_STATIC|ACC_PUBLIC);
mg.setMaxLocals(1);
mg.addPushConst(0);
- mg.add(ISTORE_0);
+ //mg.add(ISTORE_0);
+ mg.add(PUTSTATIC,cg.fieldRef(me,"foo",Type.INT));
int top = mg.size();
- mg.add(GETSTATIC,mg.fieldRef(new Type.Object("java.lang.System"),"out",new Type.Object("java.io.PrintStream")));
- mg.add(ILOAD_0);
- mg.add(INVOKEVIRTUAL,mg.methodRef(new Type.Object("java.io.PrintStream"),"println",Type.VOID, new Type[]{Type.INT}));
- mg.add(IINC,new int[]{0,1});
- mg.add(ILOAD_0);
+ mg.add(GETSTATIC,cg.fieldRef(new Type.Object("java.lang.System"),"out",new Type.Object("java.io.PrintStream")));
+ //mg.add(ILOAD_0);
+ mg.add(GETSTATIC,cg.fieldRef(me,"foo",Type.INT));
+ mg.add(INVOKEVIRTUAL,cg.methodRef(new Type.Object("java.io.PrintStream"),"println",Type.VOID, new Type[]{Type.INT}));
+ //mg.add(IINC,new int[]{0,1});
+ //mg.add(ILOAD_0);
+ mg.add(GETSTATIC,cg.fieldRef(me,"foo",Type.INT));
+ mg.addPushConst(1);
+ mg.add(IADD);
+ mg.add(DUP);
+ mg.add(PUTSTATIC,cg.fieldRef(me,"foo",Type.INT));
mg.addPushConst(10);
mg.add(IF_ICMPLT,top);
mg.add(RETURN);
import java.io.*;
-public class FieldGen {
- public void dump(DataOutput o) {
- throw new Error("FIXME");
+public class FieldGen implements CGConst {
+ private final CPGen cp;
+ private final String name;
+ private final Type type;
+ private final int flags;
+ private final AttrGen attrs;
+
+ FieldGen(ClassGen owner, String name,Type type, int flags) {
+ if((flags & ~(ACC_PUBLIC|ACC_PRIVATE|ACC_PROTECTED|ACC_VOLATILE|ACC_TRANSIENT|ACC_STATIC|ACC_FINAL)) != 0)
+ throw new IllegalArgumentException("invalid flags");
+ this.cp = owner.cp;
+ this.name = name;
+ this.type = type;
+ this.flags = flags;
+ this.attrs = new AttrGen(cp);
+
+ cp.addUtf8(name);
+ cp.addUtf8(type.getDescriptor());
+ }
+
+ public void dump(DataOutput o) throws IOException {
+ o.writeShort(flags);
+ o.writeShort(cp.getUtf8Index(name));
+ o.writeShort(cp.getUtf8Index(type.getDescriptor()));
+ o.writeShort(attrs.size());
+ attrs.dump(o);
}
}
--- /dev/null
+package org.ibex.classgen;
+
+public class FieldRef extends ClassGen.FieldMethodRef {
+ public FieldRef (Type.Object c, ClassGen.NameAndType t) { super(c,t); }
+ public FieldRef(Type.Object c, String name, Type t) { super(c,new ClassGen.NameAndType(name,t.getDescriptor())); }
+}
package org.ibex.classgen;
import java.io.*;
+import java.util.*;
public class MethodGen implements CGConst {
private final static boolean EMIT_NOPS = true;
private final int flags;
private final AttrGen attrs;
private final AttrGen codeAttrs;
-
- private final int nameIndex;
- private final int descriptorIndex;
+ private final Hashtable exnTable = new Hashtable();
+ private final Hashtable thrownExceptions = new Hashtable();
private int maxStack = 16;
- private int maxLocals=1;
+ private int maxLocals;
private int size;
private int capacity;
attrs = new AttrGen(cp);
codeAttrs = new AttrGen(cp);
- nameIndex = cp.addUtf8(name).index;
- descriptorIndex = cp.addUtf8(descriptor()).index;
+ cp.addUtf8(name);
+ cp.addUtf8(getDescriptor());
if((owner.flags & ACC_INTERFACE) != 0 || (flags & (ACC_ABSTRACT|ACC_NATIVE)) != 0) size = capacity = -1;
+
+ maxLocals = Math.max(args.length + (flags&ACC_STATIC)==0 ? 1 : 0,4);
}
- public String descriptor() { return descriptor(ret,args); }
- public static String descriptor(Type ret, Type[] args) {
- StringBuffer sb = new StringBuffer(args.length*4);
- sb.append("(");
- for(int i=0;i<args.length;i++) sb.append(args[i].getDescriptor());
- sb.append(")");
- sb.append(ret.getDescriptor());
- return sb.toString();
+ public String getDescriptor() { return MethodRef.getDescriptor(ret,args); }
+
+ private class ExnTableEnt {
+ public int start;
+ public int end;
+ public int handler;
+ public CPGen.Ent typeEnt;
+ public ExnTableEnt(int start, int end, int handler, CPGen.Ent typeEnt) {
+ this.start = start;
+ this.end = end;
+ this.handler = handler;
+ this.typeEnt = typeEnt;
+ }
+ public void dump(DataOutput o, int[] pc, int endPC) throws IOException {
+ o.writeShort(pc[start]);
+ o.writeShort(end==pc.length ? endPC : pc[end]);
+ o.writeShort(pc[handler]);
+ o.writeShort(typeEnt.getIndex());
+ }
}
-
+
+ public final void addExceptionHandler(int startPC, int endPC, int handlerPC, Type.Object type) {
+ exnTable.put(type, new ExnTableEnt(startPC,endPC,handlerPC,cp.add(type)));
+ }
+
+ public final void addThrow(Type.Object type) {
+ thrownExceptions.put(type,cp.add(type));
+ }
+
private final void grow() { if(size == capacity) grow(size+1); }
private final void grow(int newCap) {
if(newCap <= capacity) return;
}
public final int size() { return size; }
- public final int addPushConst(int n) { grow(); setPushConst(size,n); return size++; }
- public final int addPushConst(long n) { grow(); setPushConst(size,n); return size++; }
- public final int addPushConst(float n) { grow(); setPushConst(size,n); return size++; }
- public final int addPushConst(double n) { grow(); setPushConst(size,n); return size++; }
- public final int addPushConst(Object o) { grow(); setPushConst(size,o); return size++; }
- public final int add(byte op, int arg) { return add(op,N(arg)); }
+ // FEATURE: Deprecate this
+ public final int addPushConst(int n) { return add(LDC,n); }
+
public final int add(byte op, Object arg) { grow(); set(size,op,arg); return size++; }
- public final int add(byte op) { return add(op,null); }
+ public final int add(byte op, boolean arg) { grow(); set(size,op,arg); return size++; }
+ public final int add(byte op, int arg) { grow(); set(size,op,arg); return size++; }
+ public final int add(byte op) { grow(); set(size,op); return size++; }
+ public final byte get(int pos) { return op[pos]; }
+ public final Object getArg(int pos) { return arg[pos]; }
+
+ public final void setArg(int pos, int arg) { set(pos,op[pos],N(arg)); }
+ public final void setArg(int pos, Object arg) { set(pos,op[pos],arg); }
+
public final void set(int pos, byte op) { set(pos,op,null); }
- public final void set(int pos, byte op, int n) { set(pos,op,N(n)); }
- public final void set(int pos, byte op, Object arg) {
- if(capacity == -1) throw new IllegalStateException("method can't have code");
- if(size == -1) throw new IllegalStateException("method is finalized");
- int iarg = arg instanceof Integer ? ((Integer)arg).intValue() : -1;
-
- switch(op) {
- case LDC: if(iarg >= 256) op = LDC_W; break;
+
+ public final void set(int pos, byte op, boolean b) { set(pos,op,b?1:0); }
+ public final void set(int pos, byte op, int n) {
+ if(op == LDC) {
+ switch(n) {
+ case -1: set(pos,ICONST_M1); return;
+ case 0: set(pos,ICONST_0); return;
+ case 1: set(pos,ICONST_1); return;
+ case 2: set(pos,ICONST_2); return;
+ case 3: set(pos,ICONST_3); return;
+ case 4: set(pos,ICONST_4); return;
+ case 5: set(pos,ICONST_5); return;
+ }
+ if(n >= -128 && n <= 127) set(pos,BIPUSH,N(n));
+ else if(n >= -32767 && n <= 32767) set(pos,SIPUSH,N(n));
+ else set(pos,LDC,cp.add(N(n)));
+ } else {
+ set(pos,op,N(n));
}
- this.op[pos] = op;
- this.arg[pos] = arg;
}
+
+ private void set(int pos, byte op, Object arg) {
+ int iarg = arg instanceof Integer ? ((Integer)arg).intValue() : -1;
- public final void setPushConst(int pos, int n) {
- switch(n) {
- case -1: set(pos,ICONST_M1); break;
- case 0: set(pos,ICONST_0); break;
- case 1: set(pos,ICONST_1); break;
- case 2: set(pos,ICONST_2); break;
- case 3: set(pos,ICONST_3); break;
- case 4: set(pos,ICONST_4); break;
- case 5: set(pos,ICONST_5); break;
+ switch(op) {
+ case ILOAD: case ISTORE: case LLOAD: case LSTORE: case FLOAD:
+ case FSTORE: case DLOAD: case DSTORE: case ALOAD: case ASTORE:
+ {
+ if(iarg >= 0 && iarg <= 3) {
+ int base = -1;
+ switch(op) {
+ case ILOAD: base = ILOAD_0; break;
+ case ISTORE: base = ISTORE_0; break;
+ case LLOAD: base = LLOAD_0; break;
+ case LSTORE: base = LSTORE_0; break;
+ case FLOAD: base = FLOAD_0; break;
+ case FSTORE: base = FSTORE_0; break;
+ case DLOAD: base = DLOAD_0; break;
+ case DSTORE: base = DSTORE_0; break;
+ case ALOAD: base = ALOAD_0; break;
+ case ASTORE: base = ASTORE_0; break;
+ }
+ op = (byte)(base + iarg);
+ } else {
+ if(iarg > maxLocals) maxLocals = iarg;
+ }
+ }
+ case LDC:
+ if(arg instanceof Integer) { set(pos,op,iarg); return; }
+ if(arg instanceof Boolean) { set(pos,op,((Boolean)arg).booleanValue()); return; }
+ if(arg instanceof Long) {
+ long l = ((Long)arg).longValue();
+ if(l == 0L) { set(pos,LCONST_0); return; }
+ if(l == 1L) { set(pos,LCONST_1); return; }
+ }
+
+ if(arg instanceof Long || arg instanceof Double) op = LDC2_W;
+ // fall through
default:
- if(n >= -128 && n <= 127) set(pos,BIPUSH,n);
- if(n >= -32767 && n <= 32767) set(pos,SIPUSH,n);
- setLDC(pos,N(n));
+ if(OP_CPENT(op) && !(arg instanceof CPGen.Ent)) arg = cp.add(arg);
break;
}
- }
- public final void setPushConst(int pos, long l) {
- if(l==0) set(pos,LCONST_0);
- else if(l==1) set(pos,LCONST_1);
- else setLDC(pos,N(l));
+ _set(pos,op,arg);
}
- public final void setPushConst(int pos, float f) {
- if(f == 1.0f) set(pos,FCONST_0);
- else if(f == 1.0f) set(pos,FCONST_1);
- else if(f == 2.0f) set(pos,FCONST_2);
- else setLDC(pos,N(f));
- }
- public final void setPushConst(int pos, double d) {
- if(d == 1.0) set(pos,DCONST_0);
- else if(d == 2.0) set(pos,DCONST_1);
- else setLDC(pos,N(d));
- }
- public final void setPushConst(int pos, Object o) {
- if(o instanceof Integer) setPushConst(pos,((Integer)o).intValue());
- else if(o instanceof Long) setPushConst(pos,((Long)o).longValue());
- else if(o instanceof Float) setPushConst(pos,((Float)o).floatValue());
- else if(o instanceof Double) setPushConst(pos,((Double)o).doubleValue());
- else setLDC(pos,o);
- }
+ public final void _set(int pos, byte op, Object arg) {
+ if(capacity == -1) throw new IllegalStateException("method can't have code");
+ if(size == -1) throw new IllegalStateException("method is finalized");
+ if(!OP_VALID(op)) throw new IllegalArgumentException("unknown bytecode");
- private void setLDC(int pos, Object o) { set(pos,LDC,cp.add(o)); }
+ this.op[pos] = op;
+ this.arg[pos] = arg;
+ }
+
+ public static class SI {
+ public final Object[] targets;
+ public Object defaultTarget;
- public final CPGen.Ent methodRef(Type.Object c, String name, Type ret, Type[] args) {
- return methodRef(c,name,MethodGen.descriptor(ret,args));
+ SI(int size) { targets = new Object[size]; }
+ public void setTarget(int pos, Object val) { targets[pos] = val; }
+ public void setTarget(int pos, int val) { targets[pos] = N(val); }
+ public void setDefaultTarget(int val) { setDefaultTarget(N(val)); }
+ public void setDefaultTarget(Object o) { defaultTarget = o; }
+ public int size() { return targets.length; }
+
+ public int getTarget(int pos) { return ((Integer)targets[pos]).intValue(); }
+ public int getDefaultTarget() { return ((Integer)defaultTarget).intValue(); }
}
- public final CPGen.Ent methodRef(Type.Object c, String name, String descriptor) {
- return cp.add(new CPGen.MethodRef(c,new CPGen.NameAndType(name,descriptor)));
+
+ public static class TSI extends SI {
+ public final int lo;
+ public final int hi;
+ public int defaultTarget = -1;
+ public TSI(int lo, int hi) {
+ super(hi-lo+1);
+ this.lo = lo;
+ this.hi = hi;
+ }
+ public void setTargetForVal(int val, Object o) { setTarget(val-lo,o); }
+ public void setTargetForVal(int val, int n) { setTarget(val-lo,n); }
}
- public final CPGen.Ent fieldRef(Type.Object c, String name, Type type) {
- return fieldRef(c,name,type.getDescriptor());
+
+ public static class LSI extends SI {
+ public final int[] vals;
+ public LSI(int size) {
+ super(size);
+ this.vals = new int[size];
+ }
+ public final void setVal(int pos, int val) { vals[pos] = val; }
}
- public final CPGen.Ent fieldRef(Type.Object c, String name, String descriptor) {
- return cp.add(new CPGen.FieldRef(c,new CPGen.NameAndType(name,descriptor)));
- }
+ public static class Pair {
+ public int i1;
+ public int i2;
+ public Pair(int i1, int i2) { this.i1 = i1; this.i2 = i2; }
+ }
+
public void setMaxLocals(int maxLocals) { this.maxLocals = maxLocals; }
public void setMaxStack(int maxStack) { this.maxStack = maxStack; }
}
}
+ private Object resolveTarget(Object arg) {
+ int target;
+ if(arg instanceof PhantomTarget) {
+ target = ((PhantomTarget)arg).getTarget();
+ if(target == -1) throw new IllegalStateException("unresolved phantom target");
+ arg = N(target);
+ } else {
+ target = ((Integer)arg).intValue();
+ }
+ if(target < 0 || target >= size)
+ throw new IllegalStateException("invalid target address");
+ return arg;
+ }
+
private void _finish() throws IOException {
if(size == -1) return;
int[] maxpc = pc;
int p,i;
- // Pass1 - Calculate maximum pc of each bytecode
+ // Pass1 - Calculate maximum pc of each bytecode, widen some insns, resolve any unresolved jumps, etc
for(i=0,p=0;i<size;i++) {
byte op = this.op[i];
+ int j;
maxpc[i] = p;
+
+ if(OP_BRANCH(op)) {
+ try {
+ arg[i] = resolveTarget(arg[i]);
+ } catch(RuntimeException e) {
+ System.err.println("WARNING: Error resolving target for " + Integer.toHexString(op&0xff));
+ throw e;
+ }
+ }
+
switch(op) {
- case GOTO: p += 3; break;
- case JSR: p += 3; break;
- case NOP: if(!EMIT_NOPS) continue; /* fall though */
- default: p += 1 + opArgLength(op); break;
+ case GOTO:
+ case JSR:
+ p += 3;
+ break;
+ case NOP:
+ if(EMIT_NOPS) p++;
+ break;
+ case LOOKUPSWITCH:
+ case TABLESWITCH: {
+ SI si = (SI) arg[i];
+ Object[] targets = si.targets;
+ for(j=0;j<targets.length;j++) targets[j] = resolveTarget(targets[j]);
+ si.defaultTarget = resolveTarget(si.defaultTarget);
+ p += 1 + 3 + 4; // opcode itself, padding, default
+ if(op == TABLESWITCH) p += 4 + 4 + targets.length * 4; // lo, hi, targets
+ else p += 4 + targets.length * 4 * 2; // count, key,val * targets
+ break;
+ }
+ case LDC:
+ j = ((CPGen.Ent)arg[i]).getIndex();
+ if(j >= 256) this.op[i] = op = LDC_W;
+ // fall through
+ default:
+ if((j = OP_ARG_SIZE(op)) == -1) throw new Error("shouldn't be here");
+ p += 1 + j;
+ break;
}
}
+
// Pass2 - Widen instructions if they can possibly be too short
for(i=0;i<size;i++) {
switch(op[i]) {
int diff = maxpc[arg] - maxpc[i];
if(diff < -32768 || diff > 32767)
op[i] = op[i] == GOTO ? GOTO_W : JSR_W;
+ break;
}
}
}
+
// Pass3 - Calculate actual pc
for(i=0,p=0;i<size;i++) {
byte op = this.op[i];
pc[i] = p;
- p += op != NOP || EMIT_NOPS ? 1 + opArgLength(op) : 0;
+ switch(op) {
+ case NOP:
+ if(EMIT_NOPS) p++;
+ break;
+ case TABLESWITCH:
+ case LOOKUPSWITCH: {
+ SI si = (SI) arg[i];
+ p++; // opcpde itself
+ p = (p + 3) & ~3; // padding
+ p += 4; // default
+ if(op == TABLESWITCH) p += 4 + 4 + si.size() * 4; // lo, hi, targets
+ else p += 4 + si.size() * 4 * 2; // count, key,val * targets
+ break;
+ }
+ default: {
+ int l = OP_ARG_SIZE(op);
+ if(l == -1) throw new Error("shouldn't be here");
+ p += 1 + l;
+ }
+ }
}
+ int codeSize = p;
+
o.writeShort(maxStack);
o.writeShort(maxLocals);
- o.writeInt(p);
+ o.writeInt(codeSize);
// Pass 4 - Actually write the bytecodes
for(i=0;i<size;i++) {
byte op = this.op[i];
- System.err.println("" + i + " Writing " + Integer.toHexString(op) + " at " + pc[i]);
if(op == NOP && !EMIT_NOPS) continue;
- int argLength = opArgLength(op);
+
o.writeByte(op&0xff);
- if(argLength == 0) continue;
- Object arg = this.arg[i];
- int iarg = arg instanceof Integer ? ((Integer)arg).intValue() : -1;
- int outArg = iarg;
+ int argLength = OP_ARG_SIZE(op);
+
+ if(argLength == 0) continue; // skip if no args
+
+ // Write args
+ Object arg = this.arg[i];
+ boolean wasInt = arg instanceof Integer;
+ int iarg = wasInt ? ((Integer)arg).intValue() : -1;
switch(op) {
case IINC: {
- int[] pair = (int[]) arg;
- if(pair[0] > 255 || pair[1] < -128 || pair[1] > 127) throw new ClassGen.Exn("overflow of iinc arg");
- o.writeByte(pair[0]);
- o.writeByte(pair[1]);
- continue;
+ Pair pair = (Pair) arg;
+ if(pair.i1 > 255 || pair.i2 < -128 || pair.i2 > 127) throw new ClassGen.Exn("overflow of iinc arg");
+ o.writeByte(pair.i1);
+ o.writeByte(pair.i2);
}
- case IF_ICMPLT:
- case GOTO:
- case GOTO_W:
- case JSR:
- case JSR_W:
- outArg = pc[iarg] - pc[i];
- if(outArg < -32768 || outArg > 32767) throw new ClassGen.Exn("overflow of s2 offset");
+ case TABLESWITCH:
+ case LOOKUPSWITCH: {
+ SI si = (SI) arg;
+ int mypc = pc[i];
+ for(p = pc[i]+1;(p&3)!=0;p++) o.writeByte(0);
+ o.writeInt(pc[si.getDefaultTarget()] - mypc);
+ if(op == LOOKUPSWITCH) {
+ int[] vals = ((LSI)si).vals;
+ o.writeInt(si.size());
+ for(int j=0;j<si.size();j++) {
+ o.writeInt(vals[j]);
+ o.writeInt(pc[si.getTarget(j)] - mypc);
+ }
+ } else {
+ TSI tsi = (TSI) si;
+ o.writeInt(tsi.lo);
+ o.writeInt(tsi.hi);
+ for(int j=0;j<tsi.size();j++) o.writeInt(pc[tsi.getTarget(j)] - mypc);
+ }
break;
- case INVOKESTATIC:
- case INVOKESPECIAL:
- case INVOKEVIRTUAL:
- case GETSTATIC:
- case PUTSTATIC:
- case GETFIELD:
- case PUTFIELD:
- case LDC_W:
- case LDC:
- outArg = ((CPGen.Ent)arg).index;
+ }
+
+ default:
+ if(OP_BRANCH(op)) {
+ int v = pc[iarg] - pc[i];
+ if(v < -32768 || v > 32767) throw new ClassGen.Exn("overflow of s2 offset");
+ o.writeShort(v);
+ } else if(OP_CPENT(op)) {
+ int v = ((CPGen.Ent)arg).getIndex();
+ if(argLength == 1) o.writeByte(v);
+ else if(argLength == 2) o.writeShort(v);
+ else throw new Error("should never happen");
+ } else if(argLength == -1) {
+ throw new Error("should never happen - variable length instruction not explicitly handled");
+ } else {
+ if(!wasInt) throw new IllegalStateException("Invalid argument given for " + Integer.toHexString(op&0xff));
+ if(argLength == 1) {
+ if(iarg < -128 || iarg >= 256) throw new ClassGen.Exn("overflow of s/u1 option");
+ o.writeByte(iarg);
+ } else if(argLength == 2) {
+ if(iarg < -32767 || iarg >= 65536) throw new ClassGen.Exn("overflow of s/u2 option");
+ o.writeShort(iarg);
+ } else {
+ throw new Error("should never happen");
+ }
+ }
break;
}
-
- if(argLength == 1) o.writeByte(outArg);
- else if(argLength == 2) o.writeShort(outArg);
- else throw new Error("should never happen");
}
- o.writeShort(0); // FIXME: Exception table
+ if(baos.size() - 8 != codeSize) throw new Error("we didn't output what we were supposed to");
+
+ o.writeShort(exnTable.size());
+ for(Enumeration e = exnTable.keys();e.hasMoreElements();)
+ ((ExnTableEnt)exnTable.get(e.nextElement())).dump(o,pc,codeSize);
+
o.writeShort(codeAttrs.size());
codeAttrs.dump(o);
byte[] codeAttribute = baos.toByteArray();
attrs.add("Code",codeAttribute);
+
+ baos.reset();
+ o.writeShort(thrownExceptions.size());
+ for(Enumeration e = thrownExceptions.keys();e.hasMoreElements();)
+ o.writeShort(((CPGen.Ent)thrownExceptions.get(e.nextElement())).getIndex());
+ attrs.add("Exceptions",baos.toByteArray());
+
size = -1;
}
public void dump(DataOutput o) throws IOException {
o.writeShort(flags);
- o.writeShort(nameIndex);
- o.writeShort(descriptorIndex);
+ o.writeShort(cp.getUtf8Index(name));
+ o.writeShort(cp.getUtf8Index(getDescriptor()));
o.writeShort(attrs.size());
attrs.dump(o);
}
- private static int opArgLength(byte op) {
+ public static byte negate(byte op) {
switch(op) {
- case NOP:
- case ICONST_M1:
- case ICONST_0:
- case ICONST_1:
- case ICONST_2:
- case ICONST_3:
- case ICONST_4:
- case ICONST_5:
- case LCONST_0:
- case LCONST_1:
- case FCONST_0:
- case FCONST_1:
- case FCONST_2:
- case DCONST_0:
- case DCONST_1:
- case ILOAD_0:
- case ILOAD_1:
- case ILOAD_2:
- case ILOAD_3:
- case ISTORE_0:
- case ISTORE_1:
- case ISTORE_2:
- case ISTORE_3:
- case RETURN:
- return 0;
- case LDC:
- case BIPUSH:
- case ILOAD:
- case ISTORE:
- return 1;
- case LDC_W:
- case SIPUSH:
- case GETSTATIC:
- case PUTSTATIC:
- case GETFIELD:
- case PUTFIELD:
- case INVOKESTATIC:
- case INVOKEVIRTUAL:
- case INVOKESPECIAL:
- case IINC:
- case GOTO:
- case JSR:
- case IF_ICMPLT:
- return 2;
+ case IFEQ: return IFNE;
+ case IFNE: return IFEQ;
+ case IFLT: return IFGE;
+ case IFGE: return IFLT;
+ case IFGT: return IFLE;
+ case IFLE: return IFGT;
+ case IF_ICMPEQ: return IF_ICMPNE;
+ case IF_ICMPNE: return IF_ICMPEQ;
+ case IF_ICMPLT: return IF_ICMPGE;
+ case IF_ICMPGE: return IF_ICMPLT;
+ case IF_ICMPGT: return IF_ICMPLE;
+ case IF_ICMPLE: return IF_ICMPGT;
+ case IF_ACMPEQ: return IF_ACMPNE;
+ case IF_ACMPNE: return IF_ACMPEQ;
+
default:
- throw new ClassGen.Exn("unknown bytecode " + Integer.toHexString(op&0xff));
+ throw new IllegalArgumentException("Can't negate " + Integer.toHexString(op));
}
}
-
+
+ public static class PhantomTarget {
+ private int target = -1;
+ public void setTarget(int target) { this.target = target; }
+ public int getTarget() { return target; }
+ }
+
private static Integer N(int n) { return new Integer(n); }
private static Long N(long n) { return new Long(n); }
private static Float N(float f) { return new Float(f); }
private static Double N(double d) { return new Double(d); }
private static int max(int a, int b) { return a > b ? a : b; }
+
+ private static final boolean OP_VALID(byte op) { return (OP_DATA[op&0xff] & 1) != 0; }
+ private static final int OP_ARG_SIZE(byte op) { int n = ((OP_DATA[op&0xff]>>1)&3); return n == 7 ? -1 : n; }
+ private static final boolean OP_CPENT(byte op) { return (OP_DATA[op&0xff]&(1<<4)) != 0; }
+ private static final boolean OP_BRANCH(byte op) { return (OP_DATA[op&0xff]&(1<<5)) != 0; }
+
+ // Run perl -x src/org/ibex/classgen/CGConst.java to generate this
+ private static final byte[] OP_DATA = {
+ 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+ 0x03, 0x05, 0x13, 0x15, 0x15, 0x03, 0x03, 0x03, 0x03, 0x03, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+ 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+ 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x13, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+ 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+ 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+ 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+ 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+ 0x01, 0x01, 0x01, 0x01, 0x05, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+ 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x25, 0x25, 0x25, 0x25, 0x25, 0x25, 0x25,
+ 0x25, 0x25, 0x25, 0x25, 0x25, 0x25, 0x25, 0x25, 0x25, 0x03, 0x0f, 0x0f, 0x01, 0x01, 0x01, 0x01,
+ 0x01, 0x01, 0x15, 0x15, 0x15, 0x15, 0x15, 0x15, 0x15, 0x15, 0x02, 0x15, 0x03, 0x15, 0x01, 0x01,
+ 0x15, 0x15, 0x01, 0x01, 0x0f, 0x07, 0x25, 0x25, 0x29, 0x29, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02,
+ 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02,
+ 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02,
+ 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02
+ };
}
--- /dev/null
+package org.ibex.classgen;
+
+public class MethodRef extends ClassGen.FieldMethodRef {
+ public MethodRef(Type.Object c, ClassGen.NameAndType t) { super(c,t); }
+ public MethodRef(Type.Object c, String name, String descriptor) {
+ this(c,new ClassGen.NameAndType(name,descriptor));
+ }
+ public MethodRef(Type.Object c, String name, Type ret, Type[] args) {
+ this(c,name,getDescriptor(ret,args));
+ }
+ public MethodRef(String s, String name, Type ret, Type[] args) {
+ this(new Type.Object(s),name,ret,args);
+ }
+
+ static String getDescriptor(Type ret, Type[] args) {
+ StringBuffer sb = new StringBuffer(args.length*4);
+ sb.append("(");
+ for(int i=0;i<args.length;i++) sb.append(args[i].getDescriptor());
+ sb.append(")");
+ sb.append(ret.getDescriptor());
+ return sb.toString();
+ }
+}
+
public class Type {
public static final Type VOID = new Type("V");
public static final Type INT = new Type("I");
- public static final Type STRING = new Type.Object("java.lang.String");
+ public static final Type LONG = new Type("J");
+ public static final Type BOOLEAN = new Type("Z");
+ public static final Type DOUBLE = new Type("D");
+ public static final Type FLOAT = new Type("F");
+
+ public static final Type.Object OBJECT = new Type.Object("java.lang.Object");
+ public static final Type.Object STRING = new Type.Object("java.lang.String");
+ public static final Type.Object STRINGBUFFER = new Type.Object("java.lang.StringBuffer");
+ public static final Type.Object INTEGER_OBJECT = new Type.Object("java.lang.Integer");
+ public static final Type.Object DOUBLE_OBJECT = new Type.Object("java.lang.Double");
+ public static final Type.Object FLOAT_OBJECT = new Type.Object("java.lang.Float");
+
public static final Type[] NO_ARGS = new Type[0];
String descriptor;
projects / org.ibex.classgen.git / commitdiff