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512 lines
31 KiB
512 lines
31 KiB
// Copyright 2000-2020 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
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package org.jetbrains.java.decompiler.code.interpreter;
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import org.jetbrains.java.decompiler.code.CodeConstants;
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import org.jetbrains.java.decompiler.code.Instruction;
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import org.jetbrains.java.decompiler.struct.consts.ConstantPool;
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import org.jetbrains.java.decompiler.struct.consts.LinkConstant;
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import org.jetbrains.java.decompiler.struct.consts.PooledConstant;
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import org.jetbrains.java.decompiler.struct.consts.PrimitiveConstant;
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import org.jetbrains.java.decompiler.struct.gen.DataPoint;
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import org.jetbrains.java.decompiler.struct.gen.MethodDescriptor;
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import org.jetbrains.java.decompiler.struct.gen.VarType;
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import org.jetbrains.java.decompiler.util.ListStack;
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public final class InstructionImpact {
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// {read, write}
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private static final int[][][] stack_impact = {
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{null, null}, // public final static int opc_nop = 0;
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null, // public final static int opc_aconst_null = 1;
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null, // public final static int opc_iconst_m1 = 2;
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null, // public final static int opc_iconst_0 = 3;
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null, // public final static int opc_iconst_1 = 4;
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null, // public final static int opc_iconst_2 = 5;
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null, // public final static int opc_iconst_3 = 6;
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null, // public final static int opc_iconst_4 = 7;
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null, // public final static int opc_iconst_5 = 8;
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{null, {CodeConstants.TYPE_LONG}}, // public final static int opc_lconst_0 = 9;
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{null, {CodeConstants.TYPE_LONG}}, // public final static int opc_lconst_1 = 10;
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{null, {CodeConstants.TYPE_FLOAT}}, // public final static int opc_fconst_0 = 11;
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{null, {CodeConstants.TYPE_FLOAT}}, // public final static int opc_fconst_1 = 12;
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{null, {CodeConstants.TYPE_FLOAT}}, // public final static int opc_fconst_2 = 13;
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{null, {CodeConstants.TYPE_DOUBLE}}, // public final static int opc_dconst_0 = 14;
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{null, {CodeConstants.TYPE_DOUBLE}}, // public final static int opc_dconst_1 = 15;
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{null, {CodeConstants.TYPE_INT}}, // public final static int opc_bipush = 16;
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{null, {CodeConstants.TYPE_INT}}, // public final static int opc_sipush = 17;
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null, // public final static int opc_ldc = 18;
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null, // public final static int opc_ldc_w = 19;
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null, // public final static int opc_ldc2_w = 20;
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{null, {CodeConstants.TYPE_INT}}, // public final static int opc_iload = 21;
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{null, {CodeConstants.TYPE_LONG}}, // public final static int opc_lload = 22;
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{null, {CodeConstants.TYPE_FLOAT}}, // public final static int opc_fload = 23;
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{null, {CodeConstants.TYPE_DOUBLE}}, // public final static int opc_dload = 24;
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null, // public final static int opc_aload = 25;
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null, // public final static int opc_iload_0 = 26;
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null, // public final static int opc_iload_1 = 27;
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null, // public final static int opc_iload_2 = 28;
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null, // public final static int opc_iload_3 = 29;
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null, // public final static int opc_lload_0 = 30;
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null, // public final static int opc_lload_1 = 31;
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null, // public final static int opc_lload_2 = 32;
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null, // public final static int opc_lload_3 = 33;
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null, // public final static int opc_fload_0 = 34;
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null, // public final static int opc_fload_1 = 35;
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null, // public final static int opc_fload_2 = 36;
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null, // public final static int opc_fload_3 = 37;
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null, // public final static int opc_dload_0 = 38;
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null, // public final static int opc_dload_1 = 39;
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null, // public final static int opc_dload_2 = 40;
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null, // public final static int opc_dload_3 = 41;
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null, // public final static int opc_aload_0 = 42;
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null, // public final static int opc_aload_1 = 43;
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null, // public final static int opc_aload_2 = 44;
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null, // public final static int opc_aload_3 = 45;
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{{CodeConstants.TYPE_OBJECT, CodeConstants.TYPE_INT}, {CodeConstants.TYPE_INT}},
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// public final static int opc_iaload = 46;
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{{CodeConstants.TYPE_OBJECT, CodeConstants.TYPE_INT}, {CodeConstants.TYPE_LONG}},
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// public final static int opc_laload = 47;
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{{CodeConstants.TYPE_OBJECT, CodeConstants.TYPE_INT}, {CodeConstants.TYPE_FLOAT}},
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// public final static int opc_faload = 48;
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{{CodeConstants.TYPE_OBJECT, CodeConstants.TYPE_INT}, {CodeConstants.TYPE_DOUBLE}},
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// public final static int opc_daload = 49;
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null, // public final static int opc_aaload = 50;
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{{CodeConstants.TYPE_OBJECT, CodeConstants.TYPE_INT}, {CodeConstants.TYPE_INT}},
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// public final static int opc_baload = 51;
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{{CodeConstants.TYPE_OBJECT, CodeConstants.TYPE_INT}, {CodeConstants.TYPE_INT}},
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// public final static int opc_caload = 52;
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{{CodeConstants.TYPE_OBJECT, CodeConstants.TYPE_INT}, {CodeConstants.TYPE_INT}},
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// public final static int opc_saload = 53;
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{{CodeConstants.TYPE_INT}, null}, // public final static int opc_istore = 54;
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{{CodeConstants.TYPE_LONG}, null}, // public final static int opc_lstore = 55;
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{{CodeConstants.TYPE_FLOAT}, null}, // public final static int opc_fstore = 56;
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{{CodeConstants.TYPE_DOUBLE}, null}, // public final static int opc_dstore = 57;
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null, // public final static int opc_astore = 58;
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null, // public final static int opc_istore_0 = 59;
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null, // public final static int opc_istore_1 = 60;
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null, // public final static int opc_istore_2 = 61;
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null, // public final static int opc_istore_3 = 62;
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null, // public final static int opc_lstore_0 = 63;
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null, // public final static int opc_lstore_1 = 64;
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null, // public final static int opc_lstore_2 = 65;
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null, // public final static int opc_lstore_3 = 66;
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null, // public final static int opc_fstore_0 = 67;
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null, // public final static int opc_fstore_1 = 68;
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null, // public final static int opc_fstore_2 = 69;
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null, // public final static int opc_fstore_3 = 70;
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null, // public final static int opc_dstore_0 = 71;
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null, // public final static int opc_dstore_1 = 72;
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null, // public final static int opc_dstore_2 = 73;
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null, // public final static int opc_dstore_3 = 74;
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null, // public final static int opc_astore_0 = 75;
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null, // public final static int opc_astore_1 = 76;
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null, // public final static int opc_astore_2 = 77;
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null, // public final static int opc_astore_3 = 78;
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{{CodeConstants.TYPE_OBJECT, CodeConstants.TYPE_INT, CodeConstants.TYPE_INT}, null},
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// public final static int opc_iastore = 79;
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{{CodeConstants.TYPE_OBJECT, CodeConstants.TYPE_INT, CodeConstants.TYPE_LONG}, null},
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// public final static int opc_lastore = 80;
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{{CodeConstants.TYPE_OBJECT, CodeConstants.TYPE_INT, CodeConstants.TYPE_FLOAT}, null},
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// public final static int opc_fastore = 81;
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{{CodeConstants.TYPE_OBJECT, CodeConstants.TYPE_INT, CodeConstants.TYPE_DOUBLE}, null},
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// public final static int opc_dastore = 82;
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{{CodeConstants.TYPE_OBJECT, CodeConstants.TYPE_INT, CodeConstants.TYPE_OBJECT}, null},
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// public final static int opc_aastore = 83;
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{{CodeConstants.TYPE_OBJECT, CodeConstants.TYPE_INT, CodeConstants.TYPE_INT}, null},
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// public final static int opc_bastore = 84;
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{{CodeConstants.TYPE_OBJECT, CodeConstants.TYPE_INT, CodeConstants.TYPE_INT}, null},
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// public final static int opc_castore = 85;
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{{CodeConstants.TYPE_OBJECT, CodeConstants.TYPE_INT, CodeConstants.TYPE_INT}, null},
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// public final static int opc_sastore = 86;
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{{CodeConstants.TYPE_ANY}, null}, // public final static int opc_pop = 87;
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{{CodeConstants.TYPE_ANY, CodeConstants.TYPE_ANY}, null}, // public final static int opc_pop2 = 88;
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null, // public final static int opc_dup = 89;
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null, // public final static int opc_dup_x1 = 90;
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null, // public final static int opc_dup_x2 = 91;
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null, // public final static int opc_dup2 = 92;
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null, // public final static int opc_dup2_x1 = 93;
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null, // public final static int opc_dup2_x2 = 94;
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null, // public final static int opc_swap = 95;
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{{CodeConstants.TYPE_INT, CodeConstants.TYPE_INT}, {CodeConstants.TYPE_INT}},
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// public final static int opc_iadd = 96;
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{{CodeConstants.TYPE_LONG, CodeConstants.TYPE_LONG}, {CodeConstants.TYPE_LONG}},
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// public final static int opc_ladd = 97;
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{{CodeConstants.TYPE_FLOAT, CodeConstants.TYPE_FLOAT}, {CodeConstants.TYPE_FLOAT}},
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// public final static int opc_fadd = 98;
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{{CodeConstants.TYPE_DOUBLE, CodeConstants.TYPE_DOUBLE}, {CodeConstants.TYPE_DOUBLE}},
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// public final static int opc_dadd = 99;
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{{CodeConstants.TYPE_INT, CodeConstants.TYPE_INT}, {CodeConstants.TYPE_INT}},
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// public final static int opc_isub = 100;
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{{CodeConstants.TYPE_LONG, CodeConstants.TYPE_LONG}, {CodeConstants.TYPE_LONG}},
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// public final static int opc_lsub = 101;
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{{CodeConstants.TYPE_FLOAT, CodeConstants.TYPE_FLOAT}, {CodeConstants.TYPE_FLOAT}},
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// public final static int opc_fsub = 102;
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{{CodeConstants.TYPE_DOUBLE, CodeConstants.TYPE_DOUBLE}, {CodeConstants.TYPE_DOUBLE}},
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// public final static int opc_dsub = 103;
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{{CodeConstants.TYPE_INT, CodeConstants.TYPE_INT}, {CodeConstants.TYPE_INT}},
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// public final static int opc_imul = 104;
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{{CodeConstants.TYPE_LONG, CodeConstants.TYPE_LONG}, {CodeConstants.TYPE_LONG}},
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// public final static int opc_lmul = 105;
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{{CodeConstants.TYPE_FLOAT, CodeConstants.TYPE_FLOAT}, {CodeConstants.TYPE_FLOAT}},
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// public final static int opc_fmul = 106;
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{{CodeConstants.TYPE_DOUBLE, CodeConstants.TYPE_DOUBLE}, {CodeConstants.TYPE_DOUBLE}},
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// public final static int opc_dmul = 107;
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{{CodeConstants.TYPE_INT, CodeConstants.TYPE_INT}, {CodeConstants.TYPE_INT}},
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// public final static int opc_idiv = 108;
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{{CodeConstants.TYPE_LONG, CodeConstants.TYPE_LONG}, {CodeConstants.TYPE_LONG}},
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// public final static int opc_ldiv = 109;
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{{CodeConstants.TYPE_FLOAT, CodeConstants.TYPE_FLOAT}, {CodeConstants.TYPE_FLOAT}},
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// public final static int opc_fdiv = 110;
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{{CodeConstants.TYPE_DOUBLE, CodeConstants.TYPE_DOUBLE}, {CodeConstants.TYPE_DOUBLE}},
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// public final static int opc_ddiv = 111;
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{{CodeConstants.TYPE_INT, CodeConstants.TYPE_INT}, {CodeConstants.TYPE_INT}},
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// public final static int opc_irem = 112;
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{{CodeConstants.TYPE_LONG, CodeConstants.TYPE_LONG}, {CodeConstants.TYPE_LONG}},
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// public final static int opc_lrem = 113;
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{{CodeConstants.TYPE_FLOAT, CodeConstants.TYPE_FLOAT}, {CodeConstants.TYPE_FLOAT}},
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// public final static int opc_frem = 114;
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{{CodeConstants.TYPE_DOUBLE, CodeConstants.TYPE_DOUBLE}, {CodeConstants.TYPE_DOUBLE}},
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// public final static int opc_drem = 115;
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{{CodeConstants.TYPE_INT}, {CodeConstants.TYPE_INT}}, // public final static int opc_ineg = 116;
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{{CodeConstants.TYPE_LONG}, {CodeConstants.TYPE_LONG}}, // public final static int opc_lneg = 117;
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{{CodeConstants.TYPE_FLOAT}, {CodeConstants.TYPE_FLOAT}}, // public final static int opc_fneg = 118;
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{{CodeConstants.TYPE_DOUBLE}, {CodeConstants.TYPE_DOUBLE}}, // public final static int opc_dneg = 119;
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{{CodeConstants.TYPE_INT, CodeConstants.TYPE_INT}, {CodeConstants.TYPE_INT}},
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// public final static int opc_ishl = 120;
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{{CodeConstants.TYPE_LONG, CodeConstants.TYPE_INT}, {CodeConstants.TYPE_LONG}},
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// public final static int opc_lshl = 121;
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{{CodeConstants.TYPE_INT, CodeConstants.TYPE_INT}, {CodeConstants.TYPE_INT}},
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// public final static int opc_ishr = 122;
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{{CodeConstants.TYPE_LONG, CodeConstants.TYPE_INT}, {CodeConstants.TYPE_LONG}},
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// public final static int opc_lshr = 123;
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{{CodeConstants.TYPE_INT, CodeConstants.TYPE_INT}, {CodeConstants.TYPE_INT}},
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// public final static int opc_iushr = 124;
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{{CodeConstants.TYPE_LONG, CodeConstants.TYPE_INT}, {CodeConstants.TYPE_LONG}},
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// public final static int opc_lushr = 125;
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{{CodeConstants.TYPE_INT, CodeConstants.TYPE_INT}, {CodeConstants.TYPE_INT}},
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// public final static int opc_iand = 126;
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{{CodeConstants.TYPE_LONG, CodeConstants.TYPE_LONG}, {CodeConstants.TYPE_LONG}},
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// public final static int opc_land = 127;
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{{CodeConstants.TYPE_INT, CodeConstants.TYPE_INT}, {CodeConstants.TYPE_INT}},
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// public final static int opc_ior = 128;
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{{CodeConstants.TYPE_LONG, CodeConstants.TYPE_LONG}, {CodeConstants.TYPE_LONG}},
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// public final static int opc_lor = 129;
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{{CodeConstants.TYPE_INT, CodeConstants.TYPE_INT}, {CodeConstants.TYPE_INT}},
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// public final static int opc_ixor = 130;
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{{CodeConstants.TYPE_LONG, CodeConstants.TYPE_LONG}, {CodeConstants.TYPE_LONG}},
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// public final static int opc_lxor = 131;
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{null, null}, // public final static int opc_iinc = 132;
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{{CodeConstants.TYPE_INT}, {CodeConstants.TYPE_LONG}}, // public final static int opc_i2l = 133;
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{{CodeConstants.TYPE_INT}, {CodeConstants.TYPE_FLOAT}}, // public final static int opc_i2f = 134;
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{{CodeConstants.TYPE_INT}, {CodeConstants.TYPE_DOUBLE}}, // public final static int opc_i2d = 135;
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{{CodeConstants.TYPE_LONG}, {CodeConstants.TYPE_INT}}, // public final static int opc_l2i = 136;
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{{CodeConstants.TYPE_LONG}, {CodeConstants.TYPE_FLOAT}}, // public final static int opc_l2f = 137;
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{{CodeConstants.TYPE_LONG}, {CodeConstants.TYPE_DOUBLE}}, // public final static int opc_l2d = 138;
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{{CodeConstants.TYPE_FLOAT}, {CodeConstants.TYPE_INT}}, // public final static int opc_f2i = 139;
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{{CodeConstants.TYPE_FLOAT}, {CodeConstants.TYPE_LONG}}, // public final static int opc_f2l = 140;
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{{CodeConstants.TYPE_FLOAT}, {CodeConstants.TYPE_DOUBLE}}, // public final static int opc_f2d = 141;
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{{CodeConstants.TYPE_DOUBLE}, {CodeConstants.TYPE_INT}}, // public final static int opc_d2i = 142;
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{{CodeConstants.TYPE_DOUBLE}, {CodeConstants.TYPE_LONG}}, // public final static int opc_d2l = 143;
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{{CodeConstants.TYPE_DOUBLE}, {CodeConstants.TYPE_FLOAT}}, // public final static int opc_d2f = 144;
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{{CodeConstants.TYPE_INT}, {CodeConstants.TYPE_INT}}, // public final static int opc_i2b = 145;
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{{CodeConstants.TYPE_INT}, {CodeConstants.TYPE_INT}}, // public final static int opc_i2c = 146;
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{{CodeConstants.TYPE_INT}, {CodeConstants.TYPE_INT}}, // public final static int opc_i2s = 147;
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{{CodeConstants.TYPE_LONG, CodeConstants.TYPE_LONG}, {CodeConstants.TYPE_INT}},
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// public final static int opc_lcmp = 148;
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{{CodeConstants.TYPE_FLOAT, CodeConstants.TYPE_FLOAT}, {CodeConstants.TYPE_INT}},
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// public final static int opc_fcmpl = 149;
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{{CodeConstants.TYPE_FLOAT, CodeConstants.TYPE_FLOAT}, {CodeConstants.TYPE_INT}},
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// public final static int opc_fcmpg = 150;
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{{CodeConstants.TYPE_DOUBLE, CodeConstants.TYPE_DOUBLE}, {CodeConstants.TYPE_INT}},
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// public final static int opc_dcmpl = 151;
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{{CodeConstants.TYPE_DOUBLE, CodeConstants.TYPE_DOUBLE}, {CodeConstants.TYPE_INT}},
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// public final static int opc_dcmpg = 152;
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{{CodeConstants.TYPE_INT}, null}, // public final static int opc_ifeq = 153;
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{{CodeConstants.TYPE_INT}, null}, // public final static int opc_ifne = 154;
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{{CodeConstants.TYPE_INT}, null}, // public final static int opc_iflt = 155;
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{{CodeConstants.TYPE_INT}, null}, // public final static int opc_ifge = 156;
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{{CodeConstants.TYPE_INT}, null}, // public final static int opc_ifgt = 157;
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{{CodeConstants.TYPE_INT}, null}, // public final static int opc_ifle = 158;
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{{CodeConstants.TYPE_INT, CodeConstants.TYPE_INT}, null}, // public final static int opc_if_icmpeq = 159;
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{{CodeConstants.TYPE_INT, CodeConstants.TYPE_INT}, null}, // public final static int opc_if_icmpne = 160;
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{{CodeConstants.TYPE_INT, CodeConstants.TYPE_INT}, null}, // public final static int opc_if_icmplt = 161;
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{{CodeConstants.TYPE_INT, CodeConstants.TYPE_INT}, null}, // public final static int opc_if_icmpge = 162;
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{{CodeConstants.TYPE_INT, CodeConstants.TYPE_INT}, null}, // public final static int opc_if_icmpgt = 163;
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{{CodeConstants.TYPE_INT, CodeConstants.TYPE_INT}, null}, // public final static int opc_if_icmple = 164;
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{{CodeConstants.TYPE_OBJECT, CodeConstants.TYPE_OBJECT}, null},
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// public final static int opc_if_acmpeq = 165;
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{{CodeConstants.TYPE_OBJECT, CodeConstants.TYPE_OBJECT}, null},
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// public final static int opc_if_acmpne = 166;
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{null, null}, // public final static int opc_goto = 167;
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{null, {CodeConstants.TYPE_ADDRESS}}, // public final static int opc_jsr = 168;
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{null, null}, // public final static int opc_ret = 169;
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{{CodeConstants.TYPE_INT}, null}, // public final static int opc_tableswitch = 170;
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{{CodeConstants.TYPE_INT}, null}, // public final static int opc_lookupswitch = 171;
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{{CodeConstants.TYPE_INT}, null}, // public final static int opc_ireturn = 172;
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{{CodeConstants.TYPE_LONG}, null}, // public final static int opc_lreturn = 173;
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{{CodeConstants.TYPE_FLOAT}, null}, // public final static int opc_freturn = 174;
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{{CodeConstants.TYPE_DOUBLE}, null}, // public final static int opc_dreturn = 175;
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{{CodeConstants.TYPE_OBJECT}, null}, // public final static int opc_areturn = 176;
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{null, null}, // public final static int opc_return = 177;
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null, // public final static int opc_getstatic = 178;
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null, // public final static int opc_putstatic = 179;
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null, // public final static int opc_getfield = 180;
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null, // public final static int opc_putfield = 181;
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null, // public final static int opc_invokevirtual = 182;
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null, // public final static int opc_invokespecial = 183;
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null, // public final static int opc_invokestatic = 184;
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null, // public final static int opc_invokeinterface = 185;
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null, // public final static int opc_xxxunusedxxx = 186;
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null, // public final static int opc_new = 187;
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null, // public final static int opc_newarray = 188;
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null, // public final static int opc_anewarray = 189;
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{{CodeConstants.TYPE_OBJECT}, {CodeConstants.TYPE_INT}}, // public final static int opc_arraylength = 190;
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null,
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// public final static int opc_athrow = 191;
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null,
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// public final static int opc_checkcast = 192;
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null,
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// public final static int opc_instanceof = 193;
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{{CodeConstants.TYPE_OBJECT}, null}, // public final static int opc_monitorenter = 194;
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{{CodeConstants.TYPE_OBJECT}, null}, // public final static int opc_monitorexit = 195;
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null,
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// public final static int opc_wide = 196;
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null,
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// public final static int opc_multianewarray = 197;
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{{CodeConstants.TYPE_OBJECT}, null}, // public final static int opc_ifnull = 198;
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{{CodeConstants.TYPE_OBJECT}, null}, // public final static int opc_ifnonnull = 199;
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{null, null}, // public final static int opc_goto_w = 200;
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{null, {CodeConstants.TYPE_ADDRESS}}, // public final static int opc_jsr_w = 201;
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};
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private static final int[] arr_type = new int[]{
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CodeConstants.TYPE_BOOLEAN,
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CodeConstants.TYPE_CHAR,
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CodeConstants.TYPE_FLOAT,
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CodeConstants.TYPE_DOUBLE,
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CodeConstants.TYPE_BYTE,
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CodeConstants.TYPE_SHORT,
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CodeConstants.TYPE_INT,
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CodeConstants.TYPE_LONG
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};
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// Sonderbehandlung
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// null, // public final static int opc_aconst_null = 1;
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// null, // public final static int opc_ldc = 18;
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// null, // public final static int opc_ldc_w = 19;
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// null, // public final static int opc_ldc2_w = 20;
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// null, // public final static int opc_aload = 25;
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// null, // public final static int opc_aaload = 50;
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// null, // public final static int opc_astore = 58;
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// null, // public final static int opc_dup = 89;
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// null, // public final static int opc_dup_x1 = 90;
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// null, // public final static int opc_dup_x2 = 91;
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// null, // public final static int opc_dup2 = 92;
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// null, // public final static int opc_dup2_x1 = 93;
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// null, // public final static int opc_dup2_x2 = 94;
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// null, // public final static int opc_swap = 95;
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// 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<VarType> 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 type : read) {
|
|
depth++;
|
|
if (type == CodeConstants.TYPE_LONG ||
|
|
type == CodeConstants.TYPE_DOUBLE) {
|
|
depth++;
|
|
}
|
|
}
|
|
|
|
stack.removeMultiple(depth);
|
|
}
|
|
|
|
if (write != null) {
|
|
for (int type : write) {
|
|
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<VarType> 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.operand(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.operand(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.operand(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.operand(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.operand(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.bytecodeVersion >= CodeConstants.BYTECODE_JAVA_7) {
|
|
ck = pool.getLinkConstant(instr.operand(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.operand(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.operand(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.operand(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.operand(1);
|
|
stack.pop(dimensions);
|
|
cn = pool.getPrimitiveConstant(instr.operand(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()));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|