--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/langtools/src/jdk.jdeps/share/classes/com/sun/tools/javap/BasicWriter.java Wed May 27 13:25:18 2015 -0700
@@ -0,0 +1,205 @@
+/*
+ * Copyright (c) 2007, 2014, 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.PrintWriter;
+
+import com.sun.tools.classfile.AttributeException;
+import com.sun.tools.classfile.ConstantPoolException;
+import com.sun.tools.classfile.DescriptorException;
+
+/*
+ * A writer similar to a PrintWriter but which does not hide exceptions.
+ * The standard print calls are line-buffered; report calls write messages directly.
+ *
+ * <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 BasicWriter {
+ protected BasicWriter(Context context) {
+ lineWriter = LineWriter.instance(context);
+ out = context.get(PrintWriter.class);
+ messages = context.get(Messages.class);
+ if (messages == null)
+ throw new AssertionError();
+ }
+
+ protected void print(String s) {
+ lineWriter.print(s);
+ }
+
+ protected void print(Object o) {
+ lineWriter.print(o == null ? null : o.toString());
+ }
+
+ protected void println() {
+ lineWriter.println();
+ }
+
+ protected void println(String s) {
+ lineWriter.print(s);
+ lineWriter.println();
+ }
+
+ protected void println(Object o) {
+ lineWriter.print(o == null ? null : o.toString());
+ lineWriter.println();
+ }
+
+ protected void indent(int delta) {
+ lineWriter.indent(delta);
+ }
+
+ protected void tab() {
+ lineWriter.tab();
+ }
+
+ protected void setPendingNewline(boolean b) {
+ lineWriter.pendingNewline = b;
+ }
+
+ protected String report(AttributeException e) {
+ out.println("Error: " + e.getMessage()); // i18n?
+ return "???";
+ }
+
+ protected String report(ConstantPoolException e) {
+ out.println("Error: " + e.getMessage()); // i18n?
+ return "???";
+ }
+
+ protected String report(DescriptorException e) {
+ out.println("Error: " + e.getMessage()); // i18n?
+ return "???";
+ }
+
+ protected String report(String msg) {
+ out.println("Error: " + msg); // i18n?
+ return "???";
+ }
+
+ protected String space(int w) {
+ if (w < spaces.length && spaces[w] != null)
+ return spaces[w];
+
+ StringBuilder sb = new StringBuilder();
+ for (int i = 0; i < w; i++)
+ sb.append(" ");
+
+ String s = sb.toString();
+ if (w < spaces.length)
+ spaces[w] = s;
+
+ return s;
+ }
+
+ private String[] spaces = new String[80];
+
+ private LineWriter lineWriter;
+ private PrintWriter out;
+ protected Messages messages;
+
+ private static class LineWriter {
+ static LineWriter instance(Context context) {
+ LineWriter instance = context.get(LineWriter.class);
+ if (instance == null)
+ instance = new LineWriter(context);
+ return instance;
+ }
+
+ protected LineWriter(Context context) {
+ context.put(LineWriter.class, this);
+ Options options = Options.instance(context);
+ indentWidth = options.indentWidth;
+ tabColumn = options.tabColumn;
+ out = context.get(PrintWriter.class);
+ buffer = new StringBuilder();
+ }
+
+ protected void print(String s) {
+ if (pendingNewline) {
+ println();
+ pendingNewline = false;
+ }
+ if (s == null)
+ s = "null";
+ for (int i = 0; i < s.length(); i++) {
+ char c = s.charAt(i);
+ switch (c) {
+ case ' ':
+ pendingSpaces++;
+ break;
+
+ case '\n':
+ println();
+ break;
+
+ default:
+ if (buffer.length() == 0)
+ indent();
+ if (pendingSpaces > 0) {
+ for (int sp = 0; sp < pendingSpaces; sp++)
+ buffer.append(' ');
+ pendingSpaces = 0;
+ }
+ buffer.append(c);
+ }
+ }
+
+ }
+
+ protected void println() {
+ // ignore/discard pending spaces
+ pendingSpaces = 0;
+ out.println(buffer);
+ buffer.setLength(0);
+ }
+
+ protected void indent(int delta) {
+ indentCount += delta;
+ }
+
+ protected void tab() {
+ int col = indentCount * indentWidth + tabColumn;
+ pendingSpaces += (col <= buffer.length() ? 1 : col - buffer.length());
+ }
+
+ private void indent() {
+ pendingSpaces += (indentCount * indentWidth);
+ }
+
+ private final PrintWriter out;
+ private final StringBuilder buffer;
+ private int indentCount;
+ private final int indentWidth;
+ private final int tabColumn;
+ private boolean pendingNewline;
+ private int pendingSpaces;
+ }
+}
+