gt:             log("Done compiling " + file.getAbsolutePath());
context: /*
   * Copyright (c) 2010, 2013, 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 jdk.nashorn.internal.codegen;
  
  import static jdk.nashorn.internal.runtime.Source.readFully;
  import static jdk.nashorn.internal.runtime.Source.sourceFor;
  
  import java.io.File;
  import java.io.PrintWriter;
  import java.io.StringWriter;
  import jdk.nashorn.internal.objects.Global;
  import jdk.nashorn.internal.runtime.Context;
  import jdk.nashorn.internal.runtime.ErrorManager;
  import jdk.nashorn.internal.runtime.ScriptFunction;
  import jdk.nashorn.internal.runtime.Source;
  import jdk.nashorn.internal.runtime.options.Options;
  import org.testng.Assert;
  import org.testng.annotations.AfterClass;
  import org.testng.annotations.BeforeClass;
  import org.testng.annotations.Test;
  
  /**
   * Tests to check Nashorn JS compiler - just compiler and not execution of scripts.
   */
  public class CompilerTest {
      private static final boolean VERBOSE  = Boolean.valueOf(System.getProperty("compilertest.verbose"));
      private static final boolean TEST262  = Boolean.valueOf(System.getProperty("compilertest.test262"));
      private static final String TEST_BASIC_DIR  = System.getProperty("test.basic.dir");
      private static final String TEST_NODE_DIR  = System.getProperty("test.node.dir");
      private static final String TEST262_SUITE_DIR = System.getProperty("test262.suite.dir");
  
      interface TestFilter {
          public boolean exclude(File file, String content);
      }
  
      private void log(final String msg) {
          org.testng.Reporter.log(msg, true);
      }
  
      private Context context;
      private Global  global;
  
      @BeforeClass
      public void setupTest() {
          final Options options = new Options("nashorn");
          options.set("anon.functions", true);
          options.set("compile.only", true);
          options.set("print.ast", true);
          options.set("print.parse", true);
          options.set("scripting", true);
          options.set("const.as.var", true);
  
          final ErrorManager errors = new ErrorManager() {
              @Override
              public void error(final String msg) {
                  log(msg);
              }
          };
  
          final StringWriter sw = new StringWriter();
          final PrintWriter pw = new PrintWriter(sw);
          this.context = new Context(options, errors, pw, pw, Thread.currentThread().getContextClassLoader());
          this.global = context.createGlobal();
      }
  
      @AfterClass
      public void tearDownTest() {
          this.context = null;
          this.global = null;
      }
  
      @Test
      public void compileAllTests() {
          if (TEST262) {
              compileTestSet(new File(TEST262_SUITE_DIR), new TestFilter() {
                  @Override
                  public boolean exclude(final File file, final String content) {
                      return content != null && content.contains("@negative");
                  }
              });
          }
          compileTestSet(new File(TEST_BASIC_DIR), new TestFilter() {
              @Override
              public boolean exclude(final File file, final String content) {
                  return file.getName().equals("es6");
              }
          });
          compileTestSet(new File(TEST_NODE_DIR, "node"), null);
          compileTestSet(new File(TEST_NODE_DIR, "src"), null);
      }
  
      private void compileTestSet(final File testSetDir, final TestFilter filter) {
          passed = 0;
          failed = 0;
          skipped = 0;
          if (! testSetDir.isDirectory()) {
              log("WARNING: " + testSetDir + " not found or not a directory");
              return;
          }
          log(testSetDir.getAbsolutePath());
          compileJSDirectory(testSetDir, filter);
  
          log(testSetDir + " compile done!");
          log("compile ok: " + passed);
          log("compile failed: " + failed);
          log("compile skipped: " + skipped);
          if (failed != 0) {
              Assert.fail(failed + " tests failed to compile in " + testSetDir.getAbsolutePath());
          }
      }
  
      // number of scripts that compiled fine
      private int passed;
      // number of scripts resulting in compile failure
      private int failed;
      // scripts that were skipped - all tests with @negative are
      // skipped for now.
      private int skipped;
  
      private void compileJSDirectory(final File dir, final TestFilter filter) {
          if (filter != null && filter.exclude(dir, null)) {
              return;
          }
          for (final File f : dir.listFiles()) {
              if (f.isDirectory()) {
                  compileJSDirectory(f, filter);
              } else if (f.getName().endsWith(".js")) {
                  compileJSFile(f, filter);
              }
          }
      }
  
      private void compileJSFile(final File file, final TestFilter filter) {
          if (VERBOSE) {
              log("Begin compiling " + file.getAbsolutePath());
          }
  
          final Global oldGlobal = Context.getGlobal();
          final boolean globalChanged = (oldGlobal != global);
  
          try {
              final char[] buffer = readFully(file);
              boolean excluded = false;
  
              if (filter != null) {
                  final String content = new String(buffer);
                  excluded = filter.exclude(file, content);
              }
  
              if (excluded) {
                  if (VERBOSE) {
                      log("Skipping " + file.getAbsolutePath());
                  }
                  skipped++;
                  return;
              }
  
              if (globalChanged) {
                  Context.setGlobal(global);
              }
              final Source source = sourceFor(file.getAbsolutePath(), buffer);
              final ScriptFunction script = context.compileScript(source, global);
              if (script == null || context.getErrorManager().getNumberOfErrors() > 0) {
                  log("Compile failed: " + file.getAbsolutePath());
                  failed++;
              } else {
                  passed++;
              }
          } catch (final Throwable t) {
              log("Compile failed: " + file.getAbsolutePath() + " : " + t);
              if (VERBOSE) {
                  t.printStackTrace(System.out);
              }
              failed++;
          } finally {
              if (globalChanged) {
                  Context.setGlobal(oldGlobal);
              }
          }
  
          if (VERBOSE) {
  