/* * Copyright 2000-2015 JetBrains s.r.o. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package org.jetbrains.java.decompiler.code.interpreter; import org.jetbrains.java.decompiler.code.CodeConstants; import org.jetbrains.java.decompiler.code.Instruction; import org.jetbrains.java.decompiler.struct.consts.ConstantPool; import org.jetbrains.java.decompiler.struct.consts.LinkConstant; import org.jetbrains.java.decompiler.struct.consts.PooledConstant; import org.jetbrains.java.decompiler.struct.consts.PrimitiveConstant; import org.jetbrains.java.decompiler.struct.gen.DataPoint; import org.jetbrains.java.decompiler.struct.gen.MethodDescriptor; import org.jetbrains.java.decompiler.struct.gen.VarType; import org.jetbrains.java.decompiler.util.ListStack; public class InstructionImpact { // {read, write} private static final int[][][] stack_impact = { {null, null}, // public final static int opc_nop = 0; null, // public final static int opc_aconst_null = 1; null, // public final static int opc_iconst_m1 = 2; null, // public final static int opc_iconst_0 = 3; null, // public final static int opc_iconst_1 = 4; null, // public final static int opc_iconst_2 = 5; null, // public final static int opc_iconst_3 = 6; null, // public final static int opc_iconst_4 = 7; null, // public final static int opc_iconst_5 = 8; {null, {CodeConstants.TYPE_LONG}}, // public final static int opc_lconst_0 = 9; {null, {CodeConstants.TYPE_LONG}}, // public final static int opc_lconst_1 = 10; {null, {CodeConstants.TYPE_FLOAT}}, // public final static int opc_fconst_0 = 11; {null, {CodeConstants.TYPE_FLOAT}}, // public final static int opc_fconst_1 = 12; {null, {CodeConstants.TYPE_FLOAT}}, // public final static int opc_fconst_2 = 13; {null, {CodeConstants.TYPE_DOUBLE}}, // public final static int opc_dconst_0 = 14; {null, {CodeConstants.TYPE_DOUBLE}}, // public final static int opc_dconst_1 = 15; {null, {CodeConstants.TYPE_INT}}, // public final static int opc_bipush = 16; {null, {CodeConstants.TYPE_INT}}, // public final static int opc_sipush = 17; null, // public final static int opc_ldc = 18; null, // public final static int opc_ldc_w = 19; null, // public final static int opc_ldc2_w = 20; {null, {CodeConstants.TYPE_INT}}, // public final static int opc_iload = 21; {null, {CodeConstants.TYPE_LONG}}, // public final static int opc_lload = 22; {null, {CodeConstants.TYPE_FLOAT}}, // public final static int opc_fload = 23; {null, {CodeConstants.TYPE_DOUBLE}}, // public final static int opc_dload = 24; null, // public final static int opc_aload = 25; null, // public final static int opc_iload_0 = 26; null, // public final static int opc_iload_1 = 27; null, // public final static int opc_iload_2 = 28; null, // public final static int opc_iload_3 = 29; null, // public final static int opc_lload_0 = 30; null, // public final static int opc_lload_1 = 31; null, // public final static int opc_lload_2 = 32; null, // public final static int opc_lload_3 = 33; null, // public final static int opc_fload_0 = 34; null, // public final static int opc_fload_1 = 35; null, // public final static int opc_fload_2 = 36; null, // public final static int opc_fload_3 = 37; null, // public final static int opc_dload_0 = 38; null, // public final static int opc_dload_1 = 39; null, // public final static int opc_dload_2 = 40; null, // public final static int opc_dload_3 = 41; null, // public final static int opc_aload_0 = 42; null, // public final static int opc_aload_1 = 43; null, // public final static int opc_aload_2 = 44; null, // public final static int opc_aload_3 = 45; {{CodeConstants.TYPE_OBJECT, CodeConstants.TYPE_INT}, {CodeConstants.TYPE_INT}}, // public final static int opc_iaload = 46; {{CodeConstants.TYPE_OBJECT, CodeConstants.TYPE_INT}, {CodeConstants.TYPE_LONG}}, // public final static int opc_laload = 47; {{CodeConstants.TYPE_OBJECT, CodeConstants.TYPE_INT}, {CodeConstants.TYPE_FLOAT}}, // public final static int opc_faload = 48; {{CodeConstants.TYPE_OBJECT, CodeConstants.TYPE_INT}, {CodeConstants.TYPE_DOUBLE}}, // public final static int opc_daload = 49; null, // public final static int opc_aaload = 50; {{CodeConstants.TYPE_OBJECT, CodeConstants.TYPE_INT}, {CodeConstants.TYPE_INT}}, // public final static int opc_baload = 51; {{CodeConstants.TYPE_OBJECT, CodeConstants.TYPE_INT}, {CodeConstants.TYPE_INT}}, // public final static int opc_caload = 52; {{CodeConstants.TYPE_OBJECT, CodeConstants.TYPE_INT}, {CodeConstants.TYPE_INT}}, // public final static int opc_saload = 53; {{CodeConstants.TYPE_INT}, null}, // public final static int opc_istore = 54; {{CodeConstants.TYPE_LONG}, null}, // public final static int opc_lstore = 55; {{CodeConstants.TYPE_FLOAT}, null}, // public final static int opc_fstore = 56; {{CodeConstants.TYPE_DOUBLE}, null}, // public final static int opc_dstore = 57; null, // public final static int opc_astore = 58; null, // public final static int opc_istore_0 = 59; null, // public final static int opc_istore_1 = 60; null, // public final static int opc_istore_2 = 61; null, // public final static int opc_istore_3 = 62; null, // public final static int opc_lstore_0 = 63; null, // public final static int opc_lstore_1 = 64; null, // public final static int opc_lstore_2 = 65; null, // public final static int opc_lstore_3 = 66; null, // public final static int opc_fstore_0 = 67; null, // public final static int opc_fstore_1 = 68; null, // public final static int opc_fstore_2 = 69; null, // public final static int opc_fstore_3 = 70; null, // public final static int opc_dstore_0 = 71; null, // public final static int opc_dstore_1 = 72; null, // public final static int opc_dstore_2 = 73; null, // public final static int opc_dstore_3 = 74; null, // public final static int opc_astore_0 = 75; null, // public final static int opc_astore_1 = 76; null, // public final static int opc_astore_2 = 77; null, // public final static int opc_astore_3 = 78; {{CodeConstants.TYPE_OBJECT, CodeConstants.TYPE_INT, CodeConstants.TYPE_INT}, null}, // public final static int opc_iastore = 79; {{CodeConstants.TYPE_OBJECT, CodeConstants.TYPE_INT, CodeConstants.TYPE_LONG}, null}, // public final static int opc_lastore = 80; {{CodeConstants.TYPE_OBJECT, CodeConstants.TYPE_INT, CodeConstants.TYPE_FLOAT}, null}, // public final static int opc_fastore = 81; {{CodeConstants.TYPE_OBJECT, CodeConstants.TYPE_INT, CodeConstants.TYPE_DOUBLE}, null}, // public final static int opc_dastore = 82; {{CodeConstants.TYPE_OBJECT, CodeConstants.TYPE_INT, CodeConstants.TYPE_OBJECT}, null}, // public final static int opc_aastore = 83; {{CodeConstants.TYPE_OBJECT, CodeConstants.TYPE_INT, CodeConstants.TYPE_INT}, null}, // public final static int opc_bastore = 84; {{CodeConstants.TYPE_OBJECT, CodeConstants.TYPE_INT, CodeConstants.TYPE_INT}, null}, // public final static int opc_castore = 85; {{CodeConstants.TYPE_OBJECT, CodeConstants.TYPE_INT, CodeConstants.TYPE_INT}, null}, // public final static int opc_sastore = 86; {{CodeConstants.TYPE_ANY}, null}, // public final static int opc_pop = 87; {{CodeConstants.TYPE_ANY, CodeConstants.TYPE_ANY}, null}, // public final static int opc_pop2 = 88; null, // public final static int opc_dup = 89; null, // public final static int opc_dup_x1 = 90; null, // public final static int opc_dup_x2 = 91; null, // public final static int opc_dup2 = 92; null, // public final static int opc_dup2_x1 = 93; null, // public final static int opc_dup2_x2 = 94; null, // public final static int opc_swap = 95; {{CodeConstants.TYPE_INT, CodeConstants.TYPE_INT}, {CodeConstants.TYPE_INT}}, // public final static int opc_iadd = 96; {{CodeConstants.TYPE_LONG, CodeConstants.TYPE_LONG}, {CodeConstants.TYPE_LONG}}, // public final static int opc_ladd = 97; {{CodeConstants.TYPE_FLOAT, CodeConstants.TYPE_FLOAT}, {CodeConstants.TYPE_FLOAT}}, // public final static int opc_fadd = 98; {{CodeConstants.TYPE_DOUBLE, CodeConstants.TYPE_DOUBLE}, {CodeConstants.TYPE_DOUBLE}}, // public final static int opc_dadd = 99; {{CodeConstants.TYPE_INT, CodeConstants.TYPE_INT}, {CodeConstants.TYPE_INT}}, // public final static int opc_isub = 100; {{CodeConstants.TYPE_LONG, CodeConstants.TYPE_LONG}, {CodeConstants.TYPE_LONG}}, // public final static int opc_lsub = 101; {{CodeConstants.TYPE_FLOAT, CodeConstants.TYPE_FLOAT}, {CodeConstants.TYPE_FLOAT}}, // public final static int opc_fsub = 102; {{CodeConstants.TYPE_DOUBLE, CodeConstants.TYPE_DOUBLE}, {CodeConstants.TYPE_DOUBLE}}, // public final static int opc_dsub = 103; {{CodeConstants.TYPE_INT, CodeConstants.TYPE_INT}, {CodeConstants.TYPE_INT}}, // public final static int opc_imul = 104; {{CodeConstants.TYPE_LONG, CodeConstants.TYPE_LONG}, {CodeConstants.TYPE_LONG}}, // public final static int opc_lmul = 105; {{CodeConstants.TYPE_FLOAT, CodeConstants.TYPE_FLOAT}, {CodeConstants.TYPE_FLOAT}}, // public final static int opc_fmul = 106; {{CodeConstants.TYPE_DOUBLE, CodeConstants.TYPE_DOUBLE}, {CodeConstants.TYPE_DOUBLE}}, // public final static int opc_dmul = 107; {{CodeConstants.TYPE_INT, CodeConstants.TYPE_INT}, {CodeConstants.TYPE_INT}}, // public final static int opc_idiv = 108; {{CodeConstants.TYPE_LONG, CodeConstants.TYPE_LONG}, {CodeConstants.TYPE_LONG}}, // public final static int opc_ldiv = 109; {{CodeConstants.TYPE_FLOAT, CodeConstants.TYPE_FLOAT}, {CodeConstants.TYPE_FLOAT}}, // public final static int opc_fdiv = 110; {{CodeConstants.TYPE_DOUBLE, CodeConstants.TYPE_DOUBLE}, {CodeConstants.TYPE_DOUBLE}}, // public final static int opc_ddiv = 111; {{CodeConstants.TYPE_INT, CodeConstants.TYPE_INT}, {CodeConstants.TYPE_INT}}, // public final static int opc_irem = 112; {{CodeConstants.TYPE_LONG, CodeConstants.TYPE_LONG}, {CodeConstants.TYPE_LONG}}, // public final static int opc_lrem = 113; {{CodeConstants.TYPE_FLOAT, CodeConstants.TYPE_FLOAT}, {CodeConstants.TYPE_FLOAT}}, // public final static int opc_frem = 114; {{CodeConstants.TYPE_DOUBLE, CodeConstants.TYPE_DOUBLE}, {CodeConstants.TYPE_DOUBLE}}, // public final static int opc_drem = 115; {{CodeConstants.TYPE_INT}, {CodeConstants.TYPE_INT}}, // public final static int opc_ineg = 116; {{CodeConstants.TYPE_LONG}, {CodeConstants.TYPE_LONG}}, // public final static int opc_lneg = 117; {{CodeConstants.TYPE_FLOAT}, {CodeConstants.TYPE_FLOAT}}, // public final static int opc_fneg = 118; {{CodeConstants.TYPE_DOUBLE}, {CodeConstants.TYPE_DOUBLE}}, // public final static int opc_dneg = 119; {{CodeConstants.TYPE_INT, CodeConstants.TYPE_INT}, {CodeConstants.TYPE_INT}}, // public final static int opc_ishl = 120; {{CodeConstants.TYPE_LONG, CodeConstants.TYPE_INT}, {CodeConstants.TYPE_LONG}}, // public final static int opc_lshl = 121; {{CodeConstants.TYPE_INT, CodeConstants.TYPE_INT}, {CodeConstants.TYPE_INT}}, // public final static int opc_ishr = 122; {{CodeConstants.TYPE_LONG, CodeConstants.TYPE_INT}, {CodeConstants.TYPE_LONG}}, // public final static int opc_lshr = 123; {{CodeConstants.TYPE_INT, CodeConstants.TYPE_INT}, {CodeConstants.TYPE_INT}}, // public final static int opc_iushr = 124; {{CodeConstants.TYPE_LONG, CodeConstants.TYPE_INT}, {CodeConstants.TYPE_LONG}}, // public final static int opc_lushr = 125; {{CodeConstants.TYPE_INT, CodeConstants.TYPE_INT}, {CodeConstants.TYPE_INT}}, // public final static int opc_iand = 126; {{CodeConstants.TYPE_LONG, CodeConstants.TYPE_LONG}, {CodeConstants.TYPE_LONG}}, // public final static int opc_land = 127; {{CodeConstants.TYPE_INT, CodeConstants.TYPE_INT}, {CodeConstants.TYPE_INT}}, // public final static int opc_ior = 128; {{CodeConstants.TYPE_LONG, CodeConstants.TYPE_LONG}, {CodeConstants.TYPE_LONG}}, // public final static int opc_lor = 129; {{CodeConstants.TYPE_INT, CodeConstants.TYPE_INT}, {CodeConstants.TYPE_INT}}, // public final static int opc_ixor = 130; {{CodeConstants.TYPE_LONG, CodeConstants.TYPE_LONG}, {CodeConstants.TYPE_LONG}}, // public final static int opc_lxor = 131; {null, null}, // public final static int opc_iinc = 132; {{CodeConstants.TYPE_INT}, {CodeConstants.TYPE_LONG}}, // public final static int opc_i2l = 133; {{CodeConstants.TYPE_INT}, {CodeConstants.TYPE_FLOAT}}, // public final static int opc_i2f = 134; {{CodeConstants.TYPE_INT}, {CodeConstants.TYPE_DOUBLE}}, // public final static int opc_i2d = 135; {{CodeConstants.TYPE_LONG}, {CodeConstants.TYPE_INT}}, // public final static int opc_l2i = 136; {{CodeConstants.TYPE_LONG}, {CodeConstants.TYPE_FLOAT}}, // public final static int opc_l2f = 137; {{CodeConstants.TYPE_LONG}, {CodeConstants.TYPE_DOUBLE}}, // public final static int opc_l2d = 138; {{CodeConstants.TYPE_FLOAT}, {CodeConstants.TYPE_INT}}, // public final static int opc_f2i = 139; {{CodeConstants.TYPE_FLOAT}, {CodeConstants.TYPE_LONG}}, // public final static int opc_f2l = 140; {{CodeConstants.TYPE_FLOAT}, {CodeConstants.TYPE_DOUBLE}}, // public final static int opc_f2d = 141; {{CodeConstants.TYPE_DOUBLE}, {CodeConstants.TYPE_INT}}, // public final static int opc_d2i = 142; {{CodeConstants.TYPE_DOUBLE}, {CodeConstants.TYPE_LONG}}, // public final static int opc_d2l = 143; {{CodeConstants.TYPE_DOUBLE}, {CodeConstants.TYPE_FLOAT}}, // public final static int opc_d2f = 144; {{CodeConstants.TYPE_INT}, {CodeConstants.TYPE_INT}}, // public final static int opc_i2b = 145; {{CodeConstants.TYPE_INT}, {CodeConstants.TYPE_INT}}, // public final static int opc_i2c = 146; {{CodeConstants.TYPE_INT}, {CodeConstants.TYPE_INT}}, // public final static int opc_i2s = 147; {{CodeConstants.TYPE_LONG, CodeConstants.TYPE_LONG}, {CodeConstants.TYPE_INT}}, // public final static int opc_lcmp = 148; {{CodeConstants.TYPE_FLOAT, CodeConstants.TYPE_FLOAT}, {CodeConstants.TYPE_INT}}, // public final static int opc_fcmpl = 149; {{CodeConstants.TYPE_FLOAT, CodeConstants.TYPE_FLOAT}, {CodeConstants.TYPE_INT}}, // public final static int opc_fcmpg = 150; {{CodeConstants.TYPE_DOUBLE, CodeConstants.TYPE_DOUBLE}, {CodeConstants.TYPE_INT}}, // public final static int opc_dcmpl = 151; {{CodeConstants.TYPE_DOUBLE, CodeConstants.TYPE_DOUBLE}, {CodeConstants.TYPE_INT}}, // public final static int opc_dcmpg = 152; {{CodeConstants.TYPE_INT}, null}, // public final static int opc_ifeq = 153; {{CodeConstants.TYPE_INT}, null}, // public final static int opc_ifne = 154; {{CodeConstants.TYPE_INT}, null}, // public final static int opc_iflt = 155; {{CodeConstants.TYPE_INT}, null}, // public final static int opc_ifge = 156; {{CodeConstants.TYPE_INT}, null}, // public final static int opc_ifgt = 157; {{CodeConstants.TYPE_INT}, null}, // public final static int opc_ifle = 158; {{CodeConstants.TYPE_INT, CodeConstants.TYPE_INT}, null}, // public final static int opc_if_icmpeq = 159; {{CodeConstants.TYPE_INT, CodeConstants.TYPE_INT}, null}, // public final static int opc_if_icmpne = 160; {{CodeConstants.TYPE_INT, CodeConstants.TYPE_INT}, null}, // public final static int opc_if_icmplt = 161; {{CodeConstants.TYPE_INT, CodeConstants.TYPE_INT}, null}, // public final static int opc_if_icmpge = 162; {{CodeConstants.TYPE_INT, CodeConstants.TYPE_INT}, null}, // public final static int opc_if_icmpgt = 163; {{CodeConstants.TYPE_INT, CodeConstants.TYPE_INT}, null}, // public final static int opc_if_icmple = 164; {{CodeConstants.TYPE_OBJECT, CodeConstants.TYPE_OBJECT}, null}, // public final static int opc_if_acmpeq = 165; {{CodeConstants.TYPE_OBJECT, CodeConstants.TYPE_OBJECT}, null}, // public final static int opc_if_acmpne = 166; {null, null}, // public final static int opc_goto = 167; {null, {CodeConstants.TYPE_ADDRESS}}, // public final static int opc_jsr = 168; {null, null}, // public final static int opc_ret = 169; {{CodeConstants.TYPE_INT}, null}, // public final static int opc_tableswitch = 170; {{CodeConstants.TYPE_INT}, null}, // public final static int opc_lookupswitch = 171; {{CodeConstants.TYPE_INT}, null}, // public final static int opc_ireturn = 172; {{CodeConstants.TYPE_LONG}, null}, // public final static int opc_lreturn = 173; {{CodeConstants.TYPE_FLOAT}, null}, // public final static int opc_freturn = 174; {{CodeConstants.TYPE_DOUBLE}, null}, // public final static int opc_dreturn = 175; {{CodeConstants.TYPE_OBJECT}, null}, // public final static int opc_areturn = 176; {null, null}, // public final static int opc_return = 177; null, // public final static int opc_getstatic = 178; null, // public final static int opc_putstatic = 179; null, // public final static int opc_getfield = 180; null, // public final static int opc_putfield = 181; null, // public final static int opc_invokevirtual = 182; null, // public final static int opc_invokespecial = 183; null, // public final static int opc_invokestatic = 184; null, // public final static int opc_invokeinterface = 185; null, // public final static int opc_xxxunusedxxx = 186; null, // public final static int opc_new = 187; null, // public final static int opc_newarray = 188; null, // public final static int opc_anewarray = 189; {{CodeConstants.TYPE_OBJECT}, {CodeConstants.TYPE_INT}}, // public final static int opc_arraylength = 190; null, // public final static int opc_athrow = 191; null, // public final static int opc_checkcast = 192; null, // public final static int opc_instanceof = 193; {{CodeConstants.TYPE_OBJECT}, null}, // public final static int opc_monitorenter = 194; {{CodeConstants.TYPE_OBJECT}, null}, // public final static int opc_monitorexit = 195; null, // public final static int opc_wide = 196; null, // public final static int opc_multianewarray = 197; {{CodeConstants.TYPE_OBJECT}, null}, // public final static int opc_ifnull = 198; {{CodeConstants.TYPE_OBJECT}, null}, // public final static int opc_ifnonnull = 199; {null, null}, // public final static int opc_goto_w = 200; {null, {CodeConstants.TYPE_ADDRESS}}, // public final static int opc_jsr_w = 201; }; private static final int[] arr_type = new int[]{ CodeConstants.TYPE_BOOLEAN, CodeConstants.TYPE_CHAR, CodeConstants.TYPE_FLOAT, CodeConstants.TYPE_DOUBLE, CodeConstants.TYPE_BYTE, CodeConstants.TYPE_SHORT, CodeConstants.TYPE_INT, CodeConstants.TYPE_LONG }; // Sonderbehandlung // null, // public final static int opc_aconst_null = 1; // null, // public final static int opc_ldc = 18; // null, // public final static int opc_ldc_w = 19; // null, // public final static int opc_ldc2_w = 20; // null, // public final static int opc_aload = 25; // null, // public final static int opc_aaload = 50; // null, // public final static int opc_astore = 58; // null, // public final static int opc_dup = 89; // null, // public final static int opc_dup_x1 = 90; // null, // public final static int opc_dup_x2 = 91; // null, // public final static int opc_dup2 = 92; // null, // public final static int opc_dup2_x1 = 93; // null, // public final static int opc_dup2_x2 = 94; // null, // public final static int opc_swap = 95; // null, // public final static int opc_getstatic = 178; // null, // public final static int opc_putstatic = 179; // null, // public final static int opc_getfield = 180; // null, // public final static int opc_putfield = 181; // null, // public final static int opc_invokevirtual = 182; // null, // public final static int opc_invokespecial = 183; // null, // public final static int opc_invokestatic = 184; // null, // public final static int opc_invokeinterface = 185; // null, // public final static int opc_new = 187; // null, // public final static int opc_newarray = 188; // null, // public final static int opc_anewarray = 189; // null, // public final static int opc_athrow = 191; // null, // public final static int opc_checkcast = 192; // null, // public final static int opc_instanceof = 193; // null, // public final static int opc_multianewarray = 197; public static void stepTypes(DataPoint data, Instruction instr, ConstantPool pool) { ListStack stack = data.getStack(); int[][] arr = stack_impact[instr.opcode]; if (arr != null) { // simple types only int[] read = arr[0]; int[] write = arr[1]; if (read != null) { int depth = 0; for (int i = 0; i < read.length; i++) { int type = read[i]; depth++; if (type == CodeConstants.TYPE_LONG || type == CodeConstants.TYPE_DOUBLE) { depth++; } } stack.removeMultiple(depth); } if (write != null) { for (int i = 0; i < write.length; i++) { int type = write[i]; stack.push(new VarType(type)); if (type == CodeConstants.TYPE_LONG || type == CodeConstants.TYPE_DOUBLE) { stack.push(new VarType(CodeConstants.TYPE_GROUP2EMPTY)); } } } } else { // Sonderbehandlung processSpecialInstructions(data, instr, pool); } } private static void processSpecialInstructions(DataPoint data, Instruction instr, ConstantPool pool) { VarType var1; PrimitiveConstant cn; LinkConstant ck; ListStack stack = data.getStack(); switch (instr.opcode) { case CodeConstants.opc_aconst_null: stack.push(new VarType(CodeConstants.TYPE_NULL, 0, null)); break; case CodeConstants.opc_ldc: case CodeConstants.opc_ldc_w: case CodeConstants.opc_ldc2_w: PooledConstant constant = pool.getConstant(instr.getOperand(0)); switch (constant.type) { case CodeConstants.CONSTANT_Integer: stack.push(new VarType(CodeConstants.TYPE_INT)); break; case CodeConstants.CONSTANT_Float: stack.push(new VarType(CodeConstants.TYPE_FLOAT)); break; case CodeConstants.CONSTANT_Long: stack.push(new VarType(CodeConstants.TYPE_LONG)); stack.push(new VarType(CodeConstants.TYPE_GROUP2EMPTY)); break; case CodeConstants.CONSTANT_Double: stack.push(new VarType(CodeConstants.TYPE_DOUBLE)); stack.push(new VarType(CodeConstants.TYPE_GROUP2EMPTY)); break; case CodeConstants.CONSTANT_String: stack.push(new VarType(CodeConstants.TYPE_OBJECT, 0, "java/lang/String")); break; case CodeConstants.CONSTANT_Class: stack.push(new VarType(CodeConstants.TYPE_OBJECT, 0, "java/lang/Class")); break; case CodeConstants.CONSTANT_MethodHandle: stack.push(new VarType(((LinkConstant)constant).descriptor)); break; } break; case CodeConstants.opc_aload: var1 = data.getVariable(instr.getOperand(0)); if (var1 != null) { stack.push(var1); } else { stack.push(new VarType(CodeConstants.TYPE_OBJECT, 0, null)); } break; case CodeConstants.opc_aaload: var1 = stack.pop(2); stack.push(new VarType(var1.type, var1.arrayDim - 1, var1.value)); break; case CodeConstants.opc_astore: data.setVariable(instr.getOperand(0), stack.pop()); break; case CodeConstants.opc_dup: case CodeConstants.opc_dup_x1: case CodeConstants.opc_dup_x2: int depth1 = 88 - instr.opcode; stack.insertByOffset(depth1, stack.getByOffset(-1).copy()); break; case CodeConstants.opc_dup2: case CodeConstants.opc_dup2_x1: case CodeConstants.opc_dup2_x2: int depth2 = 90 - instr.opcode; stack.insertByOffset(depth2, stack.getByOffset(-2).copy()); stack.insertByOffset(depth2, stack.getByOffset(-1).copy()); break; case CodeConstants.opc_swap: var1 = stack.pop(); stack.insertByOffset(-1, var1); break; case CodeConstants.opc_getfield: stack.pop(); case CodeConstants.opc_getstatic: ck = pool.getLinkConstant(instr.getOperand(0)); var1 = new VarType(ck.descriptor); stack.push(var1); if (var1.stackSize == 2) { stack.push(new VarType(CodeConstants.TYPE_GROUP2EMPTY)); } break; case CodeConstants.opc_putfield: stack.pop(); case CodeConstants.opc_putstatic: ck = pool.getLinkConstant(instr.getOperand(0)); var1 = new VarType(ck.descriptor); stack.pop(var1.stackSize); break; case CodeConstants.opc_invokevirtual: case CodeConstants.opc_invokespecial: case CodeConstants.opc_invokeinterface: stack.pop(); case CodeConstants.opc_invokestatic: case CodeConstants.opc_invokedynamic: if (instr.opcode != CodeConstants.opc_invokedynamic || instr.bytecode_version >= CodeConstants.BYTECODE_JAVA_7) { ck = pool.getLinkConstant(instr.getOperand(0)); MethodDescriptor md = MethodDescriptor.parseDescriptor(ck.descriptor); for (int i = 0; i < md.params.length; i++) { stack.pop(md.params[i].stackSize); } if (md.ret.type != CodeConstants.TYPE_VOID) { stack.push(md.ret); if (md.ret.stackSize == 2) { stack.push(new VarType(CodeConstants.TYPE_GROUP2EMPTY)); } } } break; case CodeConstants.opc_new: cn = pool.getPrimitiveConstant(instr.getOperand(0)); stack.push(new VarType(CodeConstants.TYPE_OBJECT, 0, cn.getString())); break; case CodeConstants.opc_newarray: stack.pop(); stack.push(new VarType(arr_type[instr.getOperand(0) - 4], 1).resizeArrayDim(1)); break; case CodeConstants.opc_athrow: var1 = stack.pop(); stack.clear(); stack.push(var1); break; case CodeConstants.opc_checkcast: case CodeConstants.opc_instanceof: stack.pop(); cn = pool.getPrimitiveConstant(instr.getOperand(0)); stack.push(new VarType(CodeConstants.TYPE_OBJECT, 0, cn.getString())); break; case CodeConstants.opc_anewarray: case CodeConstants.opc_multianewarray: int dimensions = (instr.opcode == CodeConstants.opc_anewarray) ? 1 : instr.getOperand(1); stack.pop(dimensions); cn = pool.getPrimitiveConstant(instr.getOperand(0)); if (cn.isArray) { var1 = new VarType(CodeConstants.TYPE_OBJECT, 0, cn.getString()); var1 = var1.resizeArrayDim(var1.arrayDim + dimensions); stack.push(var1); } else { stack.push(new VarType(CodeConstants.TYPE_OBJECT, dimensions, cn.getString())); } } } }