JDK 11 jdk.jdeps.jmod - JDeps Tool

JDK 11 jdk.jdeps.jmod is the JMOD file for JDK 11 JDeps tool, which can be invoked by the "jdeps" command.

JDK 11 JDeps tool compiled class files are stored in \fyicenter\jdk-11.0.1\jmods\jdk.jdeps.jmod.

JDK 11 JDeps tool compiled class files are also linked and stored in the \fyicenter\jdk-11.0.1\lib\modules JImage file.

JDK 11 JDeps tool source code files are stored in \fyicenter\jdk-11.0.1\lib\src.zip\jdk.jdeps.

You can click and view the content of each source code file in the list below.

✍: FYIcenter

com/sun/tools/javap/LocalVariableTableWriter.java

/*
 * Copyright (c) 2009, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 *
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 */

package com.sun.tools.javap;

import com.sun.tools.classfile.Attribute;
import com.sun.tools.classfile.Code_attribute;
import com.sun.tools.classfile.ConstantPool;
import com.sun.tools.classfile.ConstantPoolException;
import com.sun.tools.classfile.Descriptor;
import com.sun.tools.classfile.Descriptor.InvalidDescriptor;
import com.sun.tools.classfile.Instruction;
import com.sun.tools.classfile.LocalVariableTable_attribute;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.ListIterator;
import java.util.Map;

/**
 * Annotate instructions with details about local variables.
 *
 *  <p><b>This is NOT part of any supported API.
 *  If you write code that depends on this, you do so at your own risk.
 *  This code and its internal interfaces are subject to change or
 *  deletion without notice.</b>
 */
public class LocalVariableTableWriter extends  InstructionDetailWriter {
    public enum NoteKind {
        START("start") {
            public boolean match(LocalVariableTable_attribute.Entry entry, int pc) {
                return (pc == entry.start_pc);
            }
        },
        END("end") {
            public boolean match(LocalVariableTable_attribute.Entry entry, int pc) {
                return (pc == entry.start_pc + entry.length);
            }
        };
        NoteKind(String text) {
            this.text = text;
        }
        public abstract boolean match(LocalVariableTable_attribute.Entry entry, int pc);
        public final String text;
    }

    static LocalVariableTableWriter instance(Context context) {
        LocalVariableTableWriter instance = context.get(LocalVariableTableWriter.class);
        if (instance == null)
            instance = new LocalVariableTableWriter(context);
        return instance;
    }

    protected LocalVariableTableWriter(Context context) {
        super(context);
        context.put(LocalVariableTableWriter.class, this);
        classWriter = ClassWriter.instance(context);
    }

    public void reset(Code_attribute attr) {
        codeAttr = attr;
        pcMap = new HashMap<>();
        LocalVariableTable_attribute lvt =
                (LocalVariableTable_attribute) (attr.attributes.get(Attribute.LocalVariableTable));
        if (lvt == null)
            return;

        for (int i = 0; i < lvt.local_variable_table.length; i++) {
            LocalVariableTable_attribute.Entry entry = lvt.local_variable_table[i];
            put(entry.start_pc, entry);
            put(entry.start_pc + entry.length, entry);
        }
    }

    public void writeDetails(Instruction instr) {
        int pc = instr.getPC();
        writeLocalVariables(pc, NoteKind.END);
        writeLocalVariables(pc, NoteKind.START);
    }

    @Override
    public void flush() {
        int pc = codeAttr.code_length;
        writeLocalVariables(pc, NoteKind.END);
    }

    public void writeLocalVariables(int pc, NoteKind kind) {
        ConstantPool constant_pool = classWriter.getClassFile().constant_pool;
        String indent = space(2); // get from Options?
        List<LocalVariableTable_attribute.Entry> entries = pcMap.get(pc);
        if (entries != null) {
            for (ListIterator<LocalVariableTable_attribute.Entry> iter =
                    entries.listIterator(kind == NoteKind.END ? entries.size() : 0);
                    kind == NoteKind.END ? iter.hasPrevious() : iter.hasNext() ; ) {
                LocalVariableTable_attribute.Entry entry =
                        kind == NoteKind.END ? iter.previous() : iter.next();
                if (kind.match(entry, pc)) {
                    print(indent);
                    print(kind.text);
                    print(" local ");
                    print(entry.index);
                    print(" // ");
                    Descriptor d = new Descriptor(entry.descriptor_index);
                    try {
                        print(d.getFieldType(constant_pool));
                    } catch (InvalidDescriptor e) {
                        print(report(e));
                    } catch (ConstantPoolException e) {
                        print(report(e));
                    }
                    print(" ");
                    try {
                        print(constant_pool.getUTF8Value(entry.name_index));
                    } catch (ConstantPoolException e) {
                        print(report(e));
                    }
                    println();
                }
            }
        }
    }

    private void put(int pc, LocalVariableTable_attribute.Entry entry) {
        List<LocalVariableTable_attribute.Entry> list = pcMap.get(pc);
        if (list == null) {
            list = new ArrayList<>();
            pcMap.put(pc, list);
        }
        if (!list.contains(entry))
            list.add(entry);
    }

    private ClassWriter classWriter;
    private Code_attribute codeAttr;
    private Map<Integer, List<LocalVariableTable_attribute.Entry>> pcMap;
}

com/sun/tools/javap/LocalVariableTableWriter.java

 

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