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Diffstat (limited to 'src/proguard/classfile/instruction/InstructionFactory.java')
-rw-r--r--src/proguard/classfile/instruction/InstructionFactory.java300
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diff --git a/src/proguard/classfile/instruction/InstructionFactory.java b/src/proguard/classfile/instruction/InstructionFactory.java
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--- a/src/proguard/classfile/instruction/InstructionFactory.java
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@@ -1,300 +0,0 @@
-/*
- * ProGuard -- shrinking, optimization, obfuscation, and preverification
- * of Java bytecode.
- *
- * Copyright (c) 2002-2014 Eric Lafortune (eric@graphics.cornell.edu)
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the Free
- * Software Foundation; either version 2 of the License, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-package proguard.classfile.instruction;
-
-/**
- * This class provides methods to create and reuse Instruction objects.
- *
- * @author Eric Lafortune
- */
-public class InstructionFactory
-{
- /**
- * Creates a new Instruction from the data in the byte array, starting
- * at the given index.
- */
- public static Instruction create(byte[] code, int offset)
- {
- Instruction instruction;
-
- int index = offset;
- byte opcode = code[index++];
-
- boolean wide = false;
- if (opcode == InstructionConstants.OP_WIDE)
- {
- opcode = code[index++];
- wide = true;
- }
-
- switch (opcode)
- {
- // Simple instructions.
- case InstructionConstants.OP_NOP:
- case InstructionConstants.OP_ACONST_NULL:
- case InstructionConstants.OP_ICONST_M1:
- case InstructionConstants.OP_ICONST_0:
- case InstructionConstants.OP_ICONST_1:
- case InstructionConstants.OP_ICONST_2:
- case InstructionConstants.OP_ICONST_3:
- case InstructionConstants.OP_ICONST_4:
- case InstructionConstants.OP_ICONST_5:
- case InstructionConstants.OP_LCONST_0:
- case InstructionConstants.OP_LCONST_1:
- case InstructionConstants.OP_FCONST_0:
- case InstructionConstants.OP_FCONST_1:
- case InstructionConstants.OP_FCONST_2:
- case InstructionConstants.OP_DCONST_0:
- case InstructionConstants.OP_DCONST_1:
-
- case InstructionConstants.OP_BIPUSH:
- case InstructionConstants.OP_SIPUSH:
-
- case InstructionConstants.OP_IALOAD:
- case InstructionConstants.OP_LALOAD:
- case InstructionConstants.OP_FALOAD:
- case InstructionConstants.OP_DALOAD:
- case InstructionConstants.OP_AALOAD:
- case InstructionConstants.OP_BALOAD:
- case InstructionConstants.OP_CALOAD:
- case InstructionConstants.OP_SALOAD:
-
- case InstructionConstants.OP_IASTORE:
- case InstructionConstants.OP_LASTORE:
- case InstructionConstants.OP_FASTORE:
- case InstructionConstants.OP_DASTORE:
- case InstructionConstants.OP_AASTORE:
- case InstructionConstants.OP_BASTORE:
- case InstructionConstants.OP_CASTORE:
- case InstructionConstants.OP_SASTORE:
- case InstructionConstants.OP_POP:
- case InstructionConstants.OP_POP2:
- case InstructionConstants.OP_DUP:
- case InstructionConstants.OP_DUP_X1:
- case InstructionConstants.OP_DUP_X2:
- case InstructionConstants.OP_DUP2:
- case InstructionConstants.OP_DUP2_X1:
- case InstructionConstants.OP_DUP2_X2:
- case InstructionConstants.OP_SWAP:
- case InstructionConstants.OP_IADD:
- case InstructionConstants.OP_LADD:
- case InstructionConstants.OP_FADD:
- case InstructionConstants.OP_DADD:
- case InstructionConstants.OP_ISUB:
- case InstructionConstants.OP_LSUB:
- case InstructionConstants.OP_FSUB:
- case InstructionConstants.OP_DSUB:
- case InstructionConstants.OP_IMUL:
- case InstructionConstants.OP_LMUL:
- case InstructionConstants.OP_FMUL:
- case InstructionConstants.OP_DMUL:
- case InstructionConstants.OP_IDIV:
- case InstructionConstants.OP_LDIV:
- case InstructionConstants.OP_FDIV:
- case InstructionConstants.OP_DDIV:
- case InstructionConstants.OP_IREM:
- case InstructionConstants.OP_LREM:
- case InstructionConstants.OP_FREM:
- case InstructionConstants.OP_DREM:
- case InstructionConstants.OP_INEG:
- case InstructionConstants.OP_LNEG:
- case InstructionConstants.OP_FNEG:
- case InstructionConstants.OP_DNEG:
- case InstructionConstants.OP_ISHL:
- case InstructionConstants.OP_LSHL:
- case InstructionConstants.OP_ISHR:
- case InstructionConstants.OP_LSHR:
- case InstructionConstants.OP_IUSHR:
- case InstructionConstants.OP_LUSHR:
- case InstructionConstants.OP_IAND:
- case InstructionConstants.OP_LAND:
- case InstructionConstants.OP_IOR:
- case InstructionConstants.OP_LOR:
- case InstructionConstants.OP_IXOR:
- case InstructionConstants.OP_LXOR:
-
- case InstructionConstants.OP_I2L:
- case InstructionConstants.OP_I2F:
- case InstructionConstants.OP_I2D:
- case InstructionConstants.OP_L2I:
- case InstructionConstants.OP_L2F:
- case InstructionConstants.OP_L2D:
- case InstructionConstants.OP_F2I:
- case InstructionConstants.OP_F2L:
- case InstructionConstants.OP_F2D:
- case InstructionConstants.OP_D2I:
- case InstructionConstants.OP_D2L:
- case InstructionConstants.OP_D2F:
- case InstructionConstants.OP_I2B:
- case InstructionConstants.OP_I2C:
- case InstructionConstants.OP_I2S:
- case InstructionConstants.OP_LCMP:
- case InstructionConstants.OP_FCMPL:
- case InstructionConstants.OP_FCMPG:
- case InstructionConstants.OP_DCMPL:
- case InstructionConstants.OP_DCMPG:
-
- case InstructionConstants.OP_IRETURN:
- case InstructionConstants.OP_LRETURN:
- case InstructionConstants.OP_FRETURN:
- case InstructionConstants.OP_DRETURN:
- case InstructionConstants.OP_ARETURN:
- case InstructionConstants.OP_RETURN:
-
- case InstructionConstants.OP_NEWARRAY:
- case InstructionConstants.OP_ARRAYLENGTH:
- case InstructionConstants.OP_ATHROW:
-
- case InstructionConstants.OP_MONITORENTER:
- case InstructionConstants.OP_MONITOREXIT:
- instruction = new SimpleInstruction();
- break;
-
- // Instructions with a contant pool index.
- case InstructionConstants.OP_LDC:
- case InstructionConstants.OP_LDC_W:
- case InstructionConstants.OP_LDC2_W:
-
- case InstructionConstants.OP_GETSTATIC:
- case InstructionConstants.OP_PUTSTATIC:
- case InstructionConstants.OP_GETFIELD:
- case InstructionConstants.OP_PUTFIELD:
-
- case InstructionConstants.OP_INVOKEVIRTUAL:
- case InstructionConstants.OP_INVOKESPECIAL:
- case InstructionConstants.OP_INVOKESTATIC:
- case InstructionConstants.OP_INVOKEINTERFACE:
- case InstructionConstants.OP_INVOKEDYNAMIC:
-
- case InstructionConstants.OP_NEW:
- case InstructionConstants.OP_ANEWARRAY:
- case InstructionConstants.OP_CHECKCAST:
- case InstructionConstants.OP_INSTANCEOF:
- case InstructionConstants.OP_MULTIANEWARRAY:
- instruction = new ConstantInstruction();
- break;
-
- // Instructions with a local variable index.
- case InstructionConstants.OP_ILOAD:
- case InstructionConstants.OP_LLOAD:
- case InstructionConstants.OP_FLOAD:
- case InstructionConstants.OP_DLOAD:
- case InstructionConstants.OP_ALOAD:
- case InstructionConstants.OP_ILOAD_0:
- case InstructionConstants.OP_ILOAD_1:
- case InstructionConstants.OP_ILOAD_2:
- case InstructionConstants.OP_ILOAD_3:
- case InstructionConstants.OP_LLOAD_0:
- case InstructionConstants.OP_LLOAD_1:
- case InstructionConstants.OP_LLOAD_2:
- case InstructionConstants.OP_LLOAD_3:
- case InstructionConstants.OP_FLOAD_0:
- case InstructionConstants.OP_FLOAD_1:
- case InstructionConstants.OP_FLOAD_2:
- case InstructionConstants.OP_FLOAD_3:
- case InstructionConstants.OP_DLOAD_0:
- case InstructionConstants.OP_DLOAD_1:
- case InstructionConstants.OP_DLOAD_2:
- case InstructionConstants.OP_DLOAD_3:
- case InstructionConstants.OP_ALOAD_0:
- case InstructionConstants.OP_ALOAD_1:
- case InstructionConstants.OP_ALOAD_2:
- case InstructionConstants.OP_ALOAD_3:
-
- case InstructionConstants.OP_ISTORE:
- case InstructionConstants.OP_LSTORE:
- case InstructionConstants.OP_FSTORE:
- case InstructionConstants.OP_DSTORE:
- case InstructionConstants.OP_ASTORE:
- case InstructionConstants.OP_ISTORE_0:
- case InstructionConstants.OP_ISTORE_1:
- case InstructionConstants.OP_ISTORE_2:
- case InstructionConstants.OP_ISTORE_3:
- case InstructionConstants.OP_LSTORE_0:
- case InstructionConstants.OP_LSTORE_1:
- case InstructionConstants.OP_LSTORE_2:
- case InstructionConstants.OP_LSTORE_3:
- case InstructionConstants.OP_FSTORE_0:
- case InstructionConstants.OP_FSTORE_1:
- case InstructionConstants.OP_FSTORE_2:
- case InstructionConstants.OP_FSTORE_3:
- case InstructionConstants.OP_DSTORE_0:
- case InstructionConstants.OP_DSTORE_1:
- case InstructionConstants.OP_DSTORE_2:
- case InstructionConstants.OP_DSTORE_3:
- case InstructionConstants.OP_ASTORE_0:
- case InstructionConstants.OP_ASTORE_1:
- case InstructionConstants.OP_ASTORE_2:
- case InstructionConstants.OP_ASTORE_3:
-
- case InstructionConstants.OP_IINC:
-
- case InstructionConstants.OP_RET:
- instruction = new VariableInstruction(wide);
- break;
-
- // Instructions with a branch offset operand.
- case InstructionConstants.OP_IFEQ:
- case InstructionConstants.OP_IFNE:
- case InstructionConstants.OP_IFLT:
- case InstructionConstants.OP_IFGE:
- case InstructionConstants.OP_IFGT:
- case InstructionConstants.OP_IFLE:
- case InstructionConstants.OP_IFICMPEQ:
- case InstructionConstants.OP_IFICMPNE:
- case InstructionConstants.OP_IFICMPLT:
- case InstructionConstants.OP_IFICMPGE:
- case InstructionConstants.OP_IFICMPGT:
- case InstructionConstants.OP_IFICMPLE:
- case InstructionConstants.OP_IFACMPEQ:
- case InstructionConstants.OP_IFACMPNE:
- case InstructionConstants.OP_GOTO:
- case InstructionConstants.OP_JSR:
-
- case InstructionConstants.OP_IFNULL:
- case InstructionConstants.OP_IFNONNULL:
-
- case InstructionConstants.OP_GOTO_W:
- case InstructionConstants.OP_JSR_W:
- instruction = new BranchInstruction();
- break;
-
- // The tableswitch instruction.
- case InstructionConstants.OP_TABLESWITCH:
- instruction = new TableSwitchInstruction();
- break;
-
- // The lookupswitch instruction.
- case InstructionConstants.OP_LOOKUPSWITCH:
- instruction = new LookUpSwitchInstruction();
- break;
-
- default:
- throw new IllegalArgumentException("Unknown instruction opcode ["+opcode+"] at offset "+offset);
- }
-
- instruction.opcode = opcode;
-
- instruction.readInfo(code, index);
-
- return instruction;
- }
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-14 05:10:05 +0000