--- a/langtools/src/jdk.compiler/share/classes/com/sun/tools/javap/SourceWriter.java Wed May 27 11:27:42 2015 +0530
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,212 +0,0 @@
-/*
- * Copyright (c) 2009, 2010, Oracle and/or its affiliates. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation. Oracle designates this
- * particular file as subject to the "Classpath" exception as provided
- * by Oracle in the LICENSE file that accompanied this code.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
-
-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;
-}