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Java example source code file (AnalyzerAdapter.java)

This example Java source code file (AnalyzerAdapter.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

analyzeradapter, arraylist, double, handle, illegalargumentexception, illegalstateexception, jsr/ret, label, methodvisitor, object, override, string, type, util

The AnalyzerAdapter.java Java example source code

/***
 * ASM: a very small and fast Java bytecode manipulation framework
 * Copyright (c) 2000-2011 INRIA, France Telecom
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the copyright holders nor the names of its
 *    contributors may be used to endorse or promote products derived from
 *    this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 * THE POSSIBILITY OF SUCH DAMAGE.
 */
package clojure.asm.commons;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import clojure.asm.Handle;
import clojure.asm.Label;
import clojure.asm.MethodVisitor;
import clojure.asm.Opcodes;
import clojure.asm.Type;

/**
 * A {@link MethodVisitor} that keeps track of stack map frame changes between
 * {@link #visitFrame(int, int, Object[], int, Object[]) visitFrame} calls. This
 * adapter must be used with the
 * {@link clojure.asm.ClassReader#EXPAND_FRAMES} option. Each
 * visit<i>X instruction delegates to the next visitor in the chain, if any,
 * and then simulates the effect of this instruction on the stack map frame,
 * represented by {@link #locals} and {@link #stack}. The next visitor in the
 * chain can get the state of the stack map frame <i>before each instruction
 * by reading the value of these fields in its visit<i>X methods (this
 * requires a reference to the AnalyzerAdapter that is before it in the chain).
 * If this adapter is used with a class that does not contain stack map table
 * attributes (i.e., pre Java 6 classes) then this adapter may not be able to
 * compute the stack map frame for each instruction. In this case no exception
 * is thrown but the {@link #locals} and {@link #stack} fields will be null for
 * these instructions.
 *
 * @author Eric Bruneton
 */
public class AnalyzerAdapter extends MethodVisitor {

    /**
     * <code>List of the local variable slots for current execution
     * frame. Primitive types are represented by {@link Opcodes#TOP},
     * {@link Opcodes#INTEGER}, {@link Opcodes#FLOAT}, {@link Opcodes#LONG},
     * {@link Opcodes#DOUBLE},{@link Opcodes#NULL} or
     * {@link Opcodes#UNINITIALIZED_THIS} (long and double are represented by
     * two elements, the second one being TOP). Reference types are represented
     * by String objects (representing internal names), and uninitialized types
     * by Label objects (this label designates the NEW instruction that created
     * this uninitialized value). This field is <tt>null for unreachable
     * instructions.
     */
    public List<Object> locals;

    /**
     * <code>List of the operand stack slots for current execution frame.
     * Primitive types are represented by {@link Opcodes#TOP},
     * {@link Opcodes#INTEGER}, {@link Opcodes#FLOAT}, {@link Opcodes#LONG},
     * {@link Opcodes#DOUBLE},{@link Opcodes#NULL} or
     * {@link Opcodes#UNINITIALIZED_THIS} (long and double are represented by
     * two elements, the second one being TOP). Reference types are represented
     * by String objects (representing internal names), and uninitialized types
     * by Label objects (this label designates the NEW instruction that created
     * this uninitialized value). This field is <tt>null for unreachable
     * instructions.
     */
    public List<Object> stack;

    /**
     * The labels that designate the next instruction to be visited. May be
     * <tt>null.
     */
    private List<Label> labels;

    /**
     * Information about uninitialized types in the current execution frame.
     * This map associates internal names to Label objects. Each label
     * designates a NEW instruction that created the currently uninitialized
     * types, and the associated internal name represents the NEW operand, i.e.
     * the final, initialized type value.
     */
    public Map<Object, Object> uninitializedTypes;

    /**
     * The maximum stack size of this method.
     */
    private int maxStack;

    /**
     * The maximum number of local variables of this method.
     */
    private int maxLocals;

    /**
     * The owner's class name.
     */
    private String owner;

    /**
     * Creates a new {@link AnalyzerAdapter}. <i>Subclasses must not use this
     * constructor</i>. Instead, they must use the
     * {@link #AnalyzerAdapter(int, String, int, String, String, MethodVisitor)}
     * version.
     *
     * @param owner
     *            the owner's class name.
     * @param access
     *            the method's access flags (see {@link Opcodes}).
     * @param name
     *            the method's name.
     * @param desc
     *            the method's descriptor (see {@link Type Type}).
     * @param mv
     *            the method visitor to which this adapter delegates calls. May
     *            be <tt>null.
     */
    public AnalyzerAdapter(final String owner, final int access,
            final String name, final String desc, final MethodVisitor mv) {
        this(Opcodes.ASM4, owner, access, name, desc, mv);
    }

    /**
     * Creates a new {@link AnalyzerAdapter}.
     *
     * @param api
     *            the ASM API version implemented by this visitor. Must be one
     *            of {@link Opcodes#ASM4}.
     * @param owner
     *            the owner's class name.
     * @param access
     *            the method's access flags (see {@link Opcodes}).
     * @param name
     *            the method's name.
     * @param desc
     *            the method's descriptor (see {@link Type Type}).
     * @param mv
     *            the method visitor to which this adapter delegates calls. May
     *            be <tt>null.
     */
    protected AnalyzerAdapter(final int api, final String owner,
            final int access, final String name, final String desc,
            final MethodVisitor mv) {
        super(api, mv);
        this.owner = owner;
        locals = new ArrayList<Object>();
        stack = new ArrayList<Object>();
        uninitializedTypes = new HashMap<Object, Object>();

        if ((access & Opcodes.ACC_STATIC) == 0) {
            if ("<init>".equals(name)) {
                locals.add(Opcodes.UNINITIALIZED_THIS);
            } else {
                locals.add(owner);
            }
        }
        Type[] types = Type.getArgumentTypes(desc);
        for (int i = 0; i < types.length; ++i) {
            Type type = types[i];
            switch (type.getSort()) {
            case Type.BOOLEAN:
            case Type.CHAR:
            case Type.BYTE:
            case Type.SHORT:
            case Type.INT:
                locals.add(Opcodes.INTEGER);
                break;
            case Type.FLOAT:
                locals.add(Opcodes.FLOAT);
                break;
            case Type.LONG:
                locals.add(Opcodes.LONG);
                locals.add(Opcodes.TOP);
                break;
            case Type.DOUBLE:
                locals.add(Opcodes.DOUBLE);
                locals.add(Opcodes.TOP);
                break;
            case Type.ARRAY:
                locals.add(types[i].getDescriptor());
                break;
            // case Type.OBJECT:
            default:
                locals.add(types[i].getInternalName());
            }
        }
    }

    @Override
    public void visitFrame(final int type, final int nLocal,
            final Object[] local, final int nStack, final Object[] stack) {
        if (type != Opcodes.F_NEW) { // uncompressed frame
            throw new IllegalStateException(
                    "ClassReader.accept() should be called with EXPAND_FRAMES flag");
        }

        if (mv != null) {
            mv.visitFrame(type, nLocal, local, nStack, stack);
        }

        if (this.locals != null) {
            this.locals.clear();
            this.stack.clear();
        } else {
            this.locals = new ArrayList<Object>();
            this.stack = new ArrayList<Object>();
        }
        visitFrameTypes(nLocal, local, this.locals);
        visitFrameTypes(nStack, stack, this.stack);
        maxStack = Math.max(maxStack, this.stack.size());
    }

    private static void visitFrameTypes(final int n, final Object[] types,
            final List<Object> result) {
        for (int i = 0; i < n; ++i) {
            Object type = types[i];
            result.add(type);
            if (type == Opcodes.LONG || type == Opcodes.DOUBLE) {
                result.add(Opcodes.TOP);
            }
        }
    }

    @Override
    public void visitInsn(final int opcode) {
        if (mv != null) {
            mv.visitInsn(opcode);
        }
        execute(opcode, 0, null);
        if ((opcode >= Opcodes.IRETURN && opcode <= Opcodes.RETURN)
                || opcode == Opcodes.ATHROW) {
            this.locals = null;
            this.stack = null;
        }
    }

    @Override
    public void visitIntInsn(final int opcode, final int operand) {
        if (mv != null) {
            mv.visitIntInsn(opcode, operand);
        }
        execute(opcode, operand, null);
    }

    @Override
    public void visitVarInsn(final int opcode, final int var) {
        if (mv != null) {
            mv.visitVarInsn(opcode, var);
        }
        execute(opcode, var, null);
    }

    @Override
    public void visitTypeInsn(final int opcode, final String type) {
        if (opcode == Opcodes.NEW) {
            if (labels == null) {
                Label l = new Label();
                labels = new ArrayList<Label>(3);
                labels.add(l);
                if (mv != null) {
                    mv.visitLabel(l);
                }
            }
            for (int i = 0; i < labels.size(); ++i) {
                uninitializedTypes.put(labels.get(i), type);
            }
        }
        if (mv != null) {
            mv.visitTypeInsn(opcode, type);
        }
        execute(opcode, 0, type);
    }

    @Override
    public void visitFieldInsn(final int opcode, final String owner,
            final String name, final String desc) {
        if (mv != null) {
            mv.visitFieldInsn(opcode, owner, name, desc);
        }
        execute(opcode, 0, desc);
    }

    @Override
    public void visitMethodInsn(final int opcode, final String owner,
            final String name, final String desc) {
        if (mv != null) {
            mv.visitMethodInsn(opcode, owner, name, desc);
        }
        if (this.locals == null) {
            labels = null;
            return;
        }
        pop(desc);
        if (opcode != Opcodes.INVOKESTATIC) {
            Object t = pop();
            if (opcode == Opcodes.INVOKESPECIAL && name.charAt(0) == '<') {
                Object u;
                if (t == Opcodes.UNINITIALIZED_THIS) {
                    u = this.owner;
                } else {
                    u = uninitializedTypes.get(t);
                }
                for (int i = 0; i < locals.size(); ++i) {
                    if (locals.get(i) == t) {
                        locals.set(i, u);
                    }
                }
                for (int i = 0; i < stack.size(); ++i) {
                    if (stack.get(i) == t) {
                        stack.set(i, u);
                    }
                }
            }
        }
        pushDesc(desc);
        labels = null;
    }

    @Override
    public void visitInvokeDynamicInsn(String name, String desc, Handle bsm,
            Object... bsmArgs) {
        if (mv != null) {
            mv.visitInvokeDynamicInsn(name, desc, bsm, bsmArgs);
        }
        if (this.locals == null) {
            labels = null;
            return;
        }
        pop(desc);
        pushDesc(desc);
        labels = null;
    }

    @Override
    public void visitJumpInsn(final int opcode, final Label label) {
        if (mv != null) {
            mv.visitJumpInsn(opcode, label);
        }
        execute(opcode, 0, null);
        if (opcode == Opcodes.GOTO) {
            this.locals = null;
            this.stack = null;
        }
    }

    @Override
    public void visitLabel(final Label label) {
        if (mv != null) {
            mv.visitLabel(label);
        }
        if (labels == null) {
            labels = new ArrayList<Label>(3);
        }
        labels.add(label);
    }

    @Override
    public void visitLdcInsn(final Object cst) {
        if (mv != null) {
            mv.visitLdcInsn(cst);
        }
        if (this.locals == null) {
            labels = null;
            return;
        }
        if (cst instanceof Integer) {
            push(Opcodes.INTEGER);
        } else if (cst instanceof Long) {
            push(Opcodes.LONG);
            push(Opcodes.TOP);
        } else if (cst instanceof Float) {
            push(Opcodes.FLOAT);
        } else if (cst instanceof Double) {
            push(Opcodes.DOUBLE);
            push(Opcodes.TOP);
        } else if (cst instanceof String) {
            push("java/lang/String");
        } else if (cst instanceof Type) {
            int sort = ((Type) cst).getSort();
            if (sort == Type.OBJECT || sort == Type.ARRAY) {
                push("java/lang/Class");
            } else if (sort == Type.METHOD) {
                push("java/lang/invoke/MethodType");
            } else {
                throw new IllegalArgumentException();
            }
        } else if (cst instanceof Handle) {
            push("java/lang/invoke/MethodHandle");
        } else {
            throw new IllegalArgumentException();
        }
        labels = null;
    }

    @Override
    public void visitIincInsn(final int var, final int increment) {
        if (mv != null) {
            mv.visitIincInsn(var, increment);
        }
        execute(Opcodes.IINC, var, null);
    }

    @Override
    public void visitTableSwitchInsn(final int min, final int max,
            final Label dflt, final Label... labels) {
        if (mv != null) {
            mv.visitTableSwitchInsn(min, max, dflt, labels);
        }
        execute(Opcodes.TABLESWITCH, 0, null);
        this.locals = null;
        this.stack = null;
    }

    @Override
    public void visitLookupSwitchInsn(final Label dflt, final int[] keys,
            final Label[] labels) {
        if (mv != null) {
            mv.visitLookupSwitchInsn(dflt, keys, labels);
        }
        execute(Opcodes.LOOKUPSWITCH, 0, null);
        this.locals = null;
        this.stack = null;
    }

    @Override
    public void visitMultiANewArrayInsn(final String desc, final int dims) {
        if (mv != null) {
            mv.visitMultiANewArrayInsn(desc, dims);
        }
        execute(Opcodes.MULTIANEWARRAY, dims, desc);
    }

    @Override
    public void visitMaxs(final int maxStack, final int maxLocals) {
        if (mv != null) {
            this.maxStack = Math.max(this.maxStack, maxStack);
            this.maxLocals = Math.max(this.maxLocals, maxLocals);
            mv.visitMaxs(this.maxStack, this.maxLocals);
        }
    }

    // ------------------------------------------------------------------------

    private Object get(final int local) {
        maxLocals = Math.max(maxLocals, local);
        return local < locals.size() ? locals.get(local) : Opcodes.TOP;
    }

    private void set(final int local, final Object type) {
        maxLocals = Math.max(maxLocals, local);
        while (local >= locals.size()) {
            locals.add(Opcodes.TOP);
        }
        locals.set(local, type);
    }

    private void push(final Object type) {
        stack.add(type);
        maxStack = Math.max(maxStack, stack.size());
    }

    private void pushDesc(final String desc) {
        int index = desc.charAt(0) == '(' ? desc.indexOf(')') + 1 : 0;
        switch (desc.charAt(index)) {
        case 'V':
            return;
        case 'Z':
        case 'C':
        case 'B':
        case 'S':
        case 'I':
            push(Opcodes.INTEGER);
            return;
        case 'F':
            push(Opcodes.FLOAT);
            return;
        case 'J':
            push(Opcodes.LONG);
            push(Opcodes.TOP);
            return;
        case 'D':
            push(Opcodes.DOUBLE);
            push(Opcodes.TOP);
            return;
        case '[':
            if (index == 0) {
                push(desc);
            } else {
                push(desc.substring(index, desc.length()));
            }
            break;
        // case 'L':
        default:
            if (index == 0) {
                push(desc.substring(1, desc.length() - 1));
            } else {
                push(desc.substring(index + 1, desc.length() - 1));
            }
        }
    }

    private Object pop() {
        return stack.remove(stack.size() - 1);
    }

    private void pop(final int n) {
        int size = stack.size();
        int end = size - n;
        for (int i = size - 1; i >= end; --i) {
            stack.remove(i);
        }
    }

    private void pop(final String desc) {
        char c = desc.charAt(0);
        if (c == '(') {
            int n = 0;
            Type[] types = Type.getArgumentTypes(desc);
            for (int i = 0; i < types.length; ++i) {
                n += types[i].getSize();
            }
            pop(n);
        } else if (c == 'J' || c == 'D') {
            pop(2);
        } else {
            pop(1);
        }
    }

    private void execute(final int opcode, final int iarg, final String sarg) {
        if (this.locals == null) {
            labels = null;
            return;
        }
        Object t1, t2, t3, t4;
        switch (opcode) {
        case Opcodes.NOP:
        case Opcodes.INEG:
        case Opcodes.LNEG:
        case Opcodes.FNEG:
        case Opcodes.DNEG:
        case Opcodes.I2B:
        case Opcodes.I2C:
        case Opcodes.I2S:
        case Opcodes.GOTO:
        case Opcodes.RETURN:
            break;
        case Opcodes.ACONST_NULL:
            push(Opcodes.NULL);
            break;
        case Opcodes.ICONST_M1:
        case Opcodes.ICONST_0:
        case Opcodes.ICONST_1:
        case Opcodes.ICONST_2:
        case Opcodes.ICONST_3:
        case Opcodes.ICONST_4:
        case Opcodes.ICONST_5:
        case Opcodes.BIPUSH:
        case Opcodes.SIPUSH:
            push(Opcodes.INTEGER);
            break;
        case Opcodes.LCONST_0:
        case Opcodes.LCONST_1:
            push(Opcodes.LONG);
            push(Opcodes.TOP);
            break;
        case Opcodes.FCONST_0:
        case Opcodes.FCONST_1:
        case Opcodes.FCONST_2:
            push(Opcodes.FLOAT);
            break;
        case Opcodes.DCONST_0:
        case Opcodes.DCONST_1:
            push(Opcodes.DOUBLE);
            push(Opcodes.TOP);
            break;
        case Opcodes.ILOAD:
        case Opcodes.FLOAD:
        case Opcodes.ALOAD:
            push(get(iarg));
            break;
        case Opcodes.LLOAD:
        case Opcodes.DLOAD:
            push(get(iarg));
            push(Opcodes.TOP);
            break;
        case Opcodes.IALOAD:
        case Opcodes.BALOAD:
        case Opcodes.CALOAD:
        case Opcodes.SALOAD:
            pop(2);
            push(Opcodes.INTEGER);
            break;
        case Opcodes.LALOAD:
        case Opcodes.D2L:
            pop(2);
            push(Opcodes.LONG);
            push(Opcodes.TOP);
            break;
        case Opcodes.FALOAD:
            pop(2);
            push(Opcodes.FLOAT);
            break;
        case Opcodes.DALOAD:
        case Opcodes.L2D:
            pop(2);
            push(Opcodes.DOUBLE);
            push(Opcodes.TOP);
            break;
        case Opcodes.AALOAD:
            pop(1);
            t1 = pop();
            if (t1 instanceof String) {
                pushDesc(((String) t1).substring(1));
            } else {
                push("java/lang/Object");
            }
            break;
        case Opcodes.ISTORE:
        case Opcodes.FSTORE:
        case Opcodes.ASTORE:
            t1 = pop();
            set(iarg, t1);
            if (iarg > 0) {
                t2 = get(iarg - 1);
                if (t2 == Opcodes.LONG || t2 == Opcodes.DOUBLE) {
                    set(iarg - 1, Opcodes.TOP);
                }
            }
            break;
        case Opcodes.LSTORE:
        case Opcodes.DSTORE:
            pop(1);
            t1 = pop();
            set(iarg, t1);
            set(iarg + 1, Opcodes.TOP);
            if (iarg > 0) {
                t2 = get(iarg - 1);
                if (t2 == Opcodes.LONG || t2 == Opcodes.DOUBLE) {
                    set(iarg - 1, Opcodes.TOP);
                }
            }
            break;
        case Opcodes.IASTORE:
        case Opcodes.BASTORE:
        case Opcodes.CASTORE:
        case Opcodes.SASTORE:
        case Opcodes.FASTORE:
        case Opcodes.AASTORE:
            pop(3);
            break;
        case Opcodes.LASTORE:
        case Opcodes.DASTORE:
            pop(4);
            break;
        case Opcodes.POP:
        case Opcodes.IFEQ:
        case Opcodes.IFNE:
        case Opcodes.IFLT:
        case Opcodes.IFGE:
        case Opcodes.IFGT:
        case Opcodes.IFLE:
        case Opcodes.IRETURN:
        case Opcodes.FRETURN:
        case Opcodes.ARETURN:
        case Opcodes.TABLESWITCH:
        case Opcodes.LOOKUPSWITCH:
        case Opcodes.ATHROW:
        case Opcodes.MONITORENTER:
        case Opcodes.MONITOREXIT:
        case Opcodes.IFNULL:
        case Opcodes.IFNONNULL:
            pop(1);
            break;
        case Opcodes.POP2:
        case Opcodes.IF_ICMPEQ:
        case Opcodes.IF_ICMPNE:
        case Opcodes.IF_ICMPLT:
        case Opcodes.IF_ICMPGE:
        case Opcodes.IF_ICMPGT:
        case Opcodes.IF_ICMPLE:
        case Opcodes.IF_ACMPEQ:
        case Opcodes.IF_ACMPNE:
        case Opcodes.LRETURN:
        case Opcodes.DRETURN:
            pop(2);
            break;
        case Opcodes.DUP:
            t1 = pop();
            push(t1);
            push(t1);
            break;
        case Opcodes.DUP_X1:
            t1 = pop();
            t2 = pop();
            push(t1);
            push(t2);
            push(t1);
            break;
        case Opcodes.DUP_X2:
            t1 = pop();
            t2 = pop();
            t3 = pop();
            push(t1);
            push(t3);
            push(t2);
            push(t1);
            break;
        case Opcodes.DUP2:
            t1 = pop();
            t2 = pop();
            push(t2);
            push(t1);
            push(t2);
            push(t1);
            break;
        case Opcodes.DUP2_X1:
            t1 = pop();
            t2 = pop();
            t3 = pop();
            push(t2);
            push(t1);
            push(t3);
            push(t2);
            push(t1);
            break;
        case Opcodes.DUP2_X2:
            t1 = pop();
            t2 = pop();
            t3 = pop();
            t4 = pop();
            push(t2);
            push(t1);
            push(t4);
            push(t3);
            push(t2);
            push(t1);
            break;
        case Opcodes.SWAP:
            t1 = pop();
            t2 = pop();
            push(t1);
            push(t2);
            break;
        case Opcodes.IADD:
        case Opcodes.ISUB:
        case Opcodes.IMUL:
        case Opcodes.IDIV:
        case Opcodes.IREM:
        case Opcodes.IAND:
        case Opcodes.IOR:
        case Opcodes.IXOR:
        case Opcodes.ISHL:
        case Opcodes.ISHR:
        case Opcodes.IUSHR:
        case Opcodes.L2I:
        case Opcodes.D2I:
        case Opcodes.FCMPL:
        case Opcodes.FCMPG:
            pop(2);
            push(Opcodes.INTEGER);
            break;
        case Opcodes.LADD:
        case Opcodes.LSUB:
        case Opcodes.LMUL:
        case Opcodes.LDIV:
        case Opcodes.LREM:
        case Opcodes.LAND:
        case Opcodes.LOR:
        case Opcodes.LXOR:
            pop(4);
            push(Opcodes.LONG);
            push(Opcodes.TOP);
            break;
        case Opcodes.FADD:
        case Opcodes.FSUB:
        case Opcodes.FMUL:
        case Opcodes.FDIV:
        case Opcodes.FREM:
        case Opcodes.L2F:
        case Opcodes.D2F:
            pop(2);
            push(Opcodes.FLOAT);
            break;
        case Opcodes.DADD:
        case Opcodes.DSUB:
        case Opcodes.DMUL:
        case Opcodes.DDIV:
        case Opcodes.DREM:
            pop(4);
            push(Opcodes.DOUBLE);
            push(Opcodes.TOP);
            break;
        case Opcodes.LSHL:
        case Opcodes.LSHR:
        case Opcodes.LUSHR:
            pop(3);
            push(Opcodes.LONG);
            push(Opcodes.TOP);
            break;
        case Opcodes.IINC:
            set(iarg, Opcodes.INTEGER);
            break;
        case Opcodes.I2L:
        case Opcodes.F2L:
            pop(1);
            push(Opcodes.LONG);
            push(Opcodes.TOP);
            break;
        case Opcodes.I2F:
            pop(1);
            push(Opcodes.FLOAT);
            break;
        case Opcodes.I2D:
        case Opcodes.F2D:
            pop(1);
            push(Opcodes.DOUBLE);
            push(Opcodes.TOP);
            break;
        case Opcodes.F2I:
        case Opcodes.ARRAYLENGTH:
        case Opcodes.INSTANCEOF:
            pop(1);
            push(Opcodes.INTEGER);
            break;
        case Opcodes.LCMP:
        case Opcodes.DCMPL:
        case Opcodes.DCMPG:
            pop(4);
            push(Opcodes.INTEGER);
            break;
        case Opcodes.JSR:
        case Opcodes.RET:
            throw new RuntimeException("JSR/RET are not supported");
        case Opcodes.GETSTATIC:
            pushDesc(sarg);
            break;
        case Opcodes.PUTSTATIC:
            pop(sarg);
            break;
        case Opcodes.GETFIELD:
            pop(1);
            pushDesc(sarg);
            break;
        case Opcodes.PUTFIELD:
            pop(sarg);
            pop();
            break;
        case Opcodes.NEW:
            push(labels.get(0));
            break;
        case Opcodes.NEWARRAY:
            pop();
            switch (iarg) {
            case Opcodes.T_BOOLEAN:
                pushDesc("[Z");
                break;
            case Opcodes.T_CHAR:
                pushDesc("[C");
                break;
            case Opcodes.T_BYTE:
                pushDesc("[B");
                break;
            case Opcodes.T_SHORT:
                pushDesc("[S");
                break;
            case Opcodes.T_INT:
                pushDesc("[I");
                break;
            case Opcodes.T_FLOAT:
                pushDesc("[F");
                break;
            case Opcodes.T_DOUBLE:
                pushDesc("[D");
                break;
            // case Opcodes.T_LONG:
            default:
                pushDesc("[J");
                break;
            }
            break;
        case Opcodes.ANEWARRAY:
            pop();
            pushDesc("[" + Type.getObjectType(sarg));
            break;
        case Opcodes.CHECKCAST:
            pop();
            pushDesc(Type.getObjectType(sarg).getDescriptor());
            break;
        // case Opcodes.MULTIANEWARRAY:
        default:
            pop(iarg);
            pushDesc(sarg);
            break;
        }
        labels = null;
    }
}

Other Java examples (source code examples)

Here is a short list of links related to this Java AnalyzerAdapter.java source code file:

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