--- a/langtools/test/tools/javac/tree/TreeScannerTest.java Thu Sep 23 17:33:52 2010 -0700
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,387 +0,0 @@
-/*
- * Copyright (c) 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.
- *
- * 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.
- */
-
-
-/**
- * Utility and test program to check javac's internal TreeScanner class.
- * The program can be run standalone, or as a jtreg test. For info on
- * command line args, run program with no args.
- *
- * <p>
- * jtreg: Note that by using the -r switch in the test description below, this test
- * will process all java files in the langtools/test directory, thus implicitly
- * covering any new language features that may be tested in this test suite.
- */
-
-/*
- * @test
- * @bug 6923080
- * @summary TreeScanner.visitNewClass should scan tree.typeargs
- * @run main TreeScannerTest -q -r .
- */
-
-import java.io.*;
-import java.lang.reflect.*;
-import java.util.*;
-import javax.tools.*;
-
-import com.sun.source.tree.CompilationUnitTree;
-import com.sun.source.util.JavacTask;
-import com.sun.tools.javac.api.JavacTool;
-import com.sun.tools.javac.tree.*;
-import com.sun.tools.javac.tree.JCTree.*;
-import com.sun.tools.javac.util.List;
-
-public class TreeScannerTest {
- /**
- * Main entry point.
- * If test.src is set, program runs in jtreg mode, and will throw an Error
- * if any errors arise, otherwise System.exit will be used. In jtreg mode,
- * the default base directory for file args is the value of ${test.src}.
- * In jtreg mode, the -r option can be given to change the default base
- * directory to the root test directory.
- */
- public static void main(String... args) {
- String testSrc = System.getProperty("test.src");
- File baseDir = (testSrc == null) ? null : new File(testSrc);
- boolean ok = new TreeScannerTest().run(baseDir, args);
- if (!ok) {
- if (testSrc != null) // jtreg mode
- throw new Error("failed");
- else
- System.exit(1);
- }
- }
-
- /**
- * Run the program. A base directory can be provided for file arguments.
- * In jtreg mode, the -r option can be given to change the default base
- * directory to the test root directory. For other options, see usage().
- * @param baseDir base directory for any file arguments.
- * @param args command line args
- * @return true if successful or in gui mode
- */
- boolean run(File baseDir, String... args) {
- if (args.length == 0) {
- usage(System.out);
- return true;
- }
-
- ArrayList<File> files = new ArrayList<File>();
- for (int i = 0; i < args.length; i++) {
- String arg = args[i];
- if (arg.equals("-q"))
- quiet = true;
- else if (arg.equals("-v"))
- verbose = true;
- else if (arg.equals("-r")) {
- File d = baseDir;
- while (!new File(d, "TEST.ROOT").exists()) {
- d = d.getParentFile();
- if (d == null)
- throw new Error("cannot find TEST.ROOT");
- }
- baseDir = d;
- }
- else if (arg.startsWith("-"))
- throw new Error("unknown option: " + arg);
- else {
- while (i < args.length)
- files.add(new File(baseDir, args[i++]));
- }
- }
-
- for (File file: files) {
- if (file.exists())
- test(file);
- else
- error("File not found: " + file);
- }
-
- if (fileCount != 1)
- System.err.println(fileCount + " files read");
- if (errors > 0)
- System.err.println(errors + " errors");
-
- return (errors == 0);
- }
-
- /**
- * Print command line help.
- * @param out output stream
- */
- void usage(PrintStream out) {
- out.println("Usage:");
- out.println(" java TreeScannerTest options... files...");
- out.println("");
- out.println("where options include:");
- out.println("-q Quiet: don't report on inapplicable files");
- out.println("-v Verbose: report on files as they are being read");
- out.println("");
- out.println("files may be directories or files");
- out.println("directories will be scanned recursively");
- out.println("non java files, or java files which cannot be parsed, will be ignored");
- out.println("");
- }
-
- /**
- * Test a file. If the file is a directory, it will be recursively scanned
- * for java files.
- * @param file the file or directory to test
- */
- void test(File file) {
- if (file.isDirectory()) {
- for (File f: file.listFiles()) {
- test(f);
- }
- return;
- }
-
- if (file.isFile() && file.getName().endsWith(".java")) {
- try {
- if (verbose)
- System.err.println(file);
- fileCount++;
- ScanTester t = new ScanTester();
- t.test(read(file));
- } catch (ParseException e) {
- if (!quiet) {
- error("Error parsing " + file + "\n" + e.getMessage());
- }
- } catch (IOException e) {
- error("Error reading " + file + ": " + e);
- }
- return;
- }
-
- if (!quiet)
- error("File " + file + " ignored");
- }
-
- /**
- * Read a file.
- * @param file the file to be read
- * @return the tree for the content of the file
- * @throws IOException if any IO errors occur
- * @throws TreePosTest.ParseException if any errors occur while parsing the file
- */
- JCCompilationUnit read(File file) throws IOException, ParseException {
- StringWriter sw = new StringWriter();
- PrintWriter pw = new PrintWriter(sw);
- Reporter r = new Reporter(pw);
- JavacTool tool = JavacTool.create();
- StandardJavaFileManager fm = tool.getStandardFileManager(r, null, null);
- Iterable<? extends JavaFileObject> files = fm.getJavaFileObjects(file);
- JavacTask task = tool.getTask(pw, fm, r, Collections.<String>emptyList(), null, files);
- Iterable<? extends CompilationUnitTree> trees = task.parse();
- pw.flush();
- if (r.errors > 0)
- throw new ParseException(sw.toString());
- Iterator<? extends CompilationUnitTree> iter = trees.iterator();
- if (!iter.hasNext())
- throw new Error("no trees found");
- JCCompilationUnit t = (JCCompilationUnit) iter.next();
- if (iter.hasNext())
- throw new Error("too many trees found");
- return t;
- }
-
- /**
- * Report an error. When the program is complete, the program will either
- * exit or throw an Error if any errors have been reported.
- * @param msg the error message
- */
- void error(String msg) {
- System.err.println(msg);
- errors++;
- }
-
- /**
- * Report an error for a specific tree node.
- * @param file the source file for the tree
- * @param t the tree node
- * @param label an indication of the error
- */
- void error(JavaFileObject file, JCTree t, String msg) {
- error(file.getName() + ":" + getLine(file, t) + ": " + msg + " " + trim(t, 64));
- }
-
- /**
- * Get a trimmed string for a tree node, with normalized white space and limited length.
- */
- String trim(JCTree t, int len) {
- String s = t.toString().replaceAll("[\r\n]+", " ").replaceAll(" +", " ");
- return (s.length() < len) ? s : s.substring(0, len);
- }
-
- /** Number of files that have been analyzed. */
- int fileCount;
- /** Number of errors reported. */
- int errors;
- /** Flag: don't report irrelevant files. */
- boolean quiet;
- /** Flag: report files as they are processed. */
- boolean verbose;
-
- /**
- * Main class for testing operation of tree scanner.
- * The set of nodes found by the scanner are compared
- * against the set of nodes found by reflection.
- */
- private class ScanTester extends TreeScanner {
- /** Main entry method for the class. */
- void test(JCCompilationUnit tree) {
- sourcefile = tree.sourcefile;
- found = new HashSet<JCTree>();
- scan(tree);
- expect = new HashSet<JCTree>();
- reflectiveScan(tree);
- if (found.equals(expect))
- return;
-
- error("Differences found for " + tree.sourcefile.getName());
-
- if (found.size() != expect.size())
- error("Size mismatch; found: " + found.size() + ", expected: " + expect.size());
-
- Set<JCTree> missing = new HashSet<JCTree>();
- missing.addAll(expect);
- missing.removeAll(found);
- for (JCTree t: missing)
- error(tree.sourcefile, t, "missing");
-
- Set<JCTree> excess = new HashSet<JCTree>();
- excess.addAll(found);
- excess.removeAll(expect);
- for (JCTree t: excess)
- error(tree.sourcefile, t, "unexpected");
- }
-
- /** Record all tree nodes found by scanner. */
- @Override
- public void scan(JCTree tree) {
- if (tree == null)
- return;
- System.err.println("FOUND: " + tree.getTag() + " " + trim(tree, 64));
- found.add(tree);
- super.scan(tree);
- }
-
- /** record all tree nodes found by reflection. */
- public void reflectiveScan(Object o) {
- if (o == null)
- return;
- if (o instanceof JCTree) {
- JCTree tree = (JCTree) o;
- System.err.println("EXPECT: " + tree.getTag() + " " + trim(tree, 64));
- expect.add(tree);
- for (Field f: getFields(tree)) {
- try {
- //System.err.println("FIELD: " + f.getName());
- reflectiveScan(f.get(tree));
- } catch (IllegalAccessException e) {
- error(e.toString());
- }
- }
- } else if (o instanceof List) {
- List<?> list = (List<?>) o;
- for (Object item: list)
- reflectiveScan(item);
- } else
- error("unexpected item: " + o);
- }
-
- JavaFileObject sourcefile;
- Set<JCTree> found;
- Set<JCTree> expect;
- }
-
- /**
- * Thrown when errors are found parsing a java file.
- */
- private static class ParseException extends Exception {
- ParseException(String msg) {
- super(msg);
- }
- }
-
- /**
- * DiagnosticListener to report diagnostics and count any errors that occur.
- */
- private static class Reporter implements DiagnosticListener<JavaFileObject> {
- Reporter(PrintWriter out) {
- this.out = out;
- }
-
- public void report(Diagnostic<? extends JavaFileObject> diagnostic) {
- out.println(diagnostic);
- switch (diagnostic.getKind()) {
- case ERROR:
- errors++;
- }
- }
- int errors;
- PrintWriter out;
- }
-
- /**
- * Get the set of fields for a tree node that may contain child tree nodes.
- * These are the fields that are subtypes of JCTree or List.
- * The results are cached, based on the tree's tag.
- */
- Set<Field> getFields(JCTree tree) {
- Set<Field> fields = map.get(tree.getTag());
- if (fields == null) {
- fields = new HashSet<Field>();
- for (Field f: tree.getClass().getFields()) {
- Class<?> fc = f.getType();
- if (JCTree.class.isAssignableFrom(fc) || List.class.isAssignableFrom(fc))
- fields.add(f);
- }
- map.put(tree.getTag(), fields);
- }
- return fields;
- }
- // where
- Map<Integer, Set<Field>> map = new HashMap<Integer,Set<Field>>();
-
- /** Get the line number for the primary position for a tree.
- * The code is intended to be simple, although not necessarily efficient.
- * However, note that a file manager such as JavacFileManager is likely
- * to cache the results of file.getCharContent, avoiding the need to read
- * the bits from disk each time this method is called.
- */
- int getLine(JavaFileObject file, JCTree tree) {
- try {
- CharSequence cs = file.getCharContent(true);
- int line = 1;
- for (int i = 0; i < tree.pos; i++) {
- if (cs.charAt(i) == '\n') // jtreg tests always use Unix line endings
- line++;
- }
- return line;
- } catch (IOException e) {
- return -1;
- }
- }
-}