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/SourceWriter.java

/*
 * Copyright (c) 2009, 2010, 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 java.io.BufferedReader;
import java.io.IOException;
import java.io.StringReader;
import java.util.ArrayList;
import java.util.List;
import java.util.Set;
import java.util.SortedMap;
import java.util.SortedSet;
import java.util.TreeMap;
import java.util.TreeSet;
import javax.tools.JavaFileManager;
import javax.tools.JavaFileManager.Location;
import javax.tools.JavaFileObject;
import javax.tools.StandardLocation;

import com.sun.tools.classfile.Attribute;
import com.sun.tools.classfile.ClassFile;
import com.sun.tools.classfile.Code_attribute;
import com.sun.tools.classfile.ConstantPoolException;
import com.sun.tools.classfile.Instruction;
import com.sun.tools.classfile.LineNumberTable_attribute;
import com.sun.tools.classfile.SourceFile_attribute;


/**
 * Annotate instructions with source code.
 *
 *  <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 SourceWriter extends InstructionDetailWriter {
    static SourceWriter instance(Context context) {
        SourceWriter instance = context.get(SourceWriter.class);
        if (instance == null)
            instance = new SourceWriter(context);
        return instance;
    }

    protected SourceWriter(Context context) {
        super(context);
        context.put(SourceWriter.class, this);
    }

    void setFileManager(JavaFileManager fileManager) {
        this.fileManager = fileManager;
    }

    public void reset(ClassFile cf, Code_attribute attr) {
        setSource(cf);
        setLineMap(attr);
    }

    public void writeDetails(Instruction instr) {
        String indent = space(40); // could get from Options?
        Set<Integer> lines = lineMap.get(instr.getPC());
        if (lines != null) {
            for (int line: lines) {
                print(indent);
                print(String.format(" %4d ", line));
                if (line < sourceLines.length)
                    print(sourceLines[line]);
                println();
                int nextLine = nextLine(line);
                for (int i = line + 1; i < nextLine; i++) {
                    print(indent);
                    print(String.format("(%4d)", i));
                    if (i < sourceLines.length)
                        print(sourceLines[i]);
                    println();
                }
            }
        }
    }

    public boolean hasSource() {
        return (sourceLines.length > 0);
    }

    private void setLineMap(Code_attribute attr) {
        SortedMap<Integer, SortedSet<Integer>> map = new TreeMap<>();
        SortedSet<Integer> allLines = new TreeSet<>();
        for (Attribute a: attr.attributes) {
            if (a instanceof LineNumberTable_attribute) {
                LineNumberTable_attribute t = (LineNumberTable_attribute) a;
                for (LineNumberTable_attribute.Entry e: t.line_number_table) {
                    int start_pc = e.start_pc;
                    int line = e.line_number;
                    SortedSet<Integer> pcLines = map.get(start_pc);
                    if (pcLines == null) {
                        pcLines = new TreeSet<>();
                        map.put(start_pc, pcLines);
                    }
                    pcLines.add(line);
                    allLines.add(line);
                }
            }
        }
        lineMap = map;
        lineList = new ArrayList<>(allLines);
    }

    private void setSource(ClassFile cf) {
        if (cf != classFile) {
            classFile = cf;
            sourceLines = splitLines(readSource(cf));
        }
    }

    private String readSource(ClassFile cf) {
        if (fileManager == null)
            return null;

        Location location;
        if (fileManager.hasLocation((StandardLocation.SOURCE_PATH)))
            location = StandardLocation.SOURCE_PATH;
        else
            location = StandardLocation.CLASS_PATH;

        // Guess the source file for a class from the package name for this
        // class and the base of the source file. This avoids having to read
        // additional classes to determine the outmost class from any
        // InnerClasses and EnclosingMethod attributes.
        try {
            String className = cf.getName();
            SourceFile_attribute sf =
                    (SourceFile_attribute) cf.attributes.get(Attribute.SourceFile);
            if (sf == null) {
                report(messages.getMessage("err.no.SourceFile.attribute"));
                return null;
            }
            String sourceFile = sf.getSourceFile(cf.constant_pool);
            String fileBase = sourceFile.endsWith(".java")
                ? sourceFile.substring(0, sourceFile.length() - 5) : sourceFile;
            int sep = className.lastIndexOf("/");
            String pkgName = (sep == -1 ? "" : className.substring(0, sep+1));
            String topClassName = (pkgName + fileBase).replace('/', '.');
            JavaFileObject fo =
                    fileManager.getJavaFileForInput(location,
                    topClassName,
                    JavaFileObject.Kind.SOURCE);
            if (fo == null) {
                report(messages.getMessage("err.source.file.not.found"));
                return null;
            }
            return fo.getCharContent(true).toString();
        } catch (ConstantPoolException e) {
            report(e);
            return null;
        } catch (IOException e) {
            report(e.getLocalizedMessage());
            return null;
        }
    }

    private static String[] splitLines(String text) {
        if (text == null)
            return new String[0];

        List<String> lines = new ArrayList<>();
        lines.add(""); // dummy line 0
        try {
            BufferedReader r = new BufferedReader(new StringReader(text));
            String line;
            while ((line = r.readLine()) != null)
                lines.add(line);
        } catch (IOException ignore) {
        }
        return lines.toArray(new String[lines.size()]);
    }

    private int nextLine(int line) {
        int i = lineList.indexOf(line);
        if (i == -1 || i == lineList.size() - 1)
            return - 1;
        return lineList.get(i + 1);
    }

    private JavaFileManager fileManager;
    private ClassFile classFile;
    private SortedMap<Integer, SortedSet<Integer>> lineMap;
    private List<Integer> lineList;
    private String[] sourceLines;
}

com/sun/tools/javap/SourceWriter.java

 

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