diff options
Diffstat (limited to 'trunk/infrastructure/rhino1_7R1/toolsrc/org/mozilla/javascript/tools/jsc/Main.java')
| -rw-r--r-- | trunk/infrastructure/rhino1_7R1/toolsrc/org/mozilla/javascript/tools/jsc/Main.java | 395 |
1 files changed, 395 insertions, 0 deletions
diff --git a/trunk/infrastructure/rhino1_7R1/toolsrc/org/mozilla/javascript/tools/jsc/Main.java b/trunk/infrastructure/rhino1_7R1/toolsrc/org/mozilla/javascript/tools/jsc/Main.java new file mode 100644 index 0000000..2da4f2f --- /dev/null +++ b/trunk/infrastructure/rhino1_7R1/toolsrc/org/mozilla/javascript/tools/jsc/Main.java @@ -0,0 +1,395 @@ +/* ***** BEGIN LICENSE BLOCK ***** + * Version: MPL 1.1/GPL 2.0 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is Mozilla Communicator client code, released + * March 31, 1998. + * + * The Initial Developer of the Original Code is + * Netscape Communications Corporation. + * Portions created by the Initial Developer are Copyright (C) 1998-1999 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * Christine Begle + * Norris Boyd + * Roger Lawrence + * + * Alternatively, the contents of this file may be used under the terms of + * the GNU General Public License Version 2 or later (the "GPL"), in which + * case the provisions of the GPL are applicable instead of those above. If + * you wish to allow use of your version of this file only under the terms of + * the GPL and not to allow others to use your version of this file under the + * MPL, indicate your decision by deleting the provisions above and replacing + * them with the notice and other provisions required by the GPL. If you do + * not delete the provisions above, a recipient may use your version of this + * file under either the MPL or the GPL. + * + * ***** END LICENSE BLOCK ***** */ + +package org.mozilla.javascript.tools.jsc; + +import java.io.*; +import java.util.*; +import org.mozilla.javascript.*; +import org.mozilla.javascript.optimizer.ClassCompiler; +import org.mozilla.javascript.tools.ToolErrorReporter; + +/** + * @author Norris Boyd + */ +public class Main { + + /** + * Main entry point. + * + * Process arguments as would a normal Java program. + * Then set up the execution environment and begin to + * compile scripts. + */ + public static void main(String args[]) + { + Main main = new Main(); + args = main.processOptions(args); + if (args == null) { + if (main.printHelp) { + System.out.println(ToolErrorReporter.getMessage( + "msg.jsc.usage", Main.class.getName())); + System.exit(0); + } + System.exit(1); + } + if (!main.reporter.hasReportedError()) { + main.processSource(args); + } + } + + public Main() + { + reporter = new ToolErrorReporter(true); + compilerEnv = new CompilerEnvirons(); + compilerEnv.setErrorReporter(reporter); + compiler = new ClassCompiler(compilerEnv); + } + + /** + * Parse arguments. + * + */ + public String[] processOptions(String args[]) + { + targetPackage = ""; // default to no package + compilerEnv.setGenerateDebugInfo(false); // default to no symbols + for (int i=0; i < args.length; i++) { + String arg = args[i]; + if (!arg.startsWith("-")) { + int tail = args.length - i; + if (targetName != null && tail > 1) { + addError("msg.multiple.js.to.file", targetName); + return null; + } + String[] result = new String[tail]; + for (int j = 0; j != tail; ++j) { + result[j] = args[i + j]; + } + return result; + } + if (arg.equals("-help") || arg.equals("-h") + || arg.equals("--help")) + { + printHelp = true; + return null; + } + + try { + if (arg.equals("-version") && ++i < args.length) { + int version = Integer.parseInt(args[i]); + compilerEnv.setLanguageVersion(version); + continue; + } + if ((arg.equals("-opt") || arg.equals("-O")) && + ++i < args.length) + { + int optLevel = Integer.parseInt(args[i]); + compilerEnv.setOptimizationLevel(optLevel); + continue; + } + } + catch (NumberFormatException e) { + badUsage(args[i]); + return null; + } + if (arg.equals("-nosource")) { + compilerEnv.setGeneratingSource(false); + continue; + } + if (arg.equals("-debug") || arg.equals("-g")) { + compilerEnv.setGenerateDebugInfo(true); + continue; + } + if (arg.equals("-main-method-class") && ++i < args.length) { + compiler.setMainMethodClass(args[i]); + continue; + } + if (arg.equals("-o") && ++i < args.length) { + String name = args[i]; + int end = name.length(); + if (end == 0 + || !Character.isJavaIdentifierStart(name.charAt(0))) + { + addError("msg.invalid.classfile.name", name); + continue; + } + for (int j = 1; j < end; j++) { + char c = name.charAt(j); + if (!Character.isJavaIdentifierPart(c)) { + if (c == '.') { + // check if it is the dot in .class + if (j == end - 6 && name.endsWith(".class")) { + name = name.substring(0, j); + break; + } + } + addError("msg.invalid.classfile.name", name); + break; + } + } + targetName = name; + continue; + } + if (arg.equals("-observe-instruction-count")) { + compilerEnv.setGenerateObserverCount(true); + } + if (arg.equals("-package") && ++i < args.length) { + String pkg = args[i]; + int end = pkg.length(); + for (int j = 0; j != end; ++j) { + char c = pkg.charAt(j); + if (Character.isJavaIdentifierStart(c)) { + for (++j; j != end; ++j) { + c = pkg.charAt(j); + if (!Character.isJavaIdentifierPart(c)) { + break; + } + } + if (j == end) { + break; + } + if (c == '.' && j != end - 1) { + continue; + } + } + addError("msg.package.name", targetPackage); + return null; + } + targetPackage = pkg; + continue; + } + if (arg.equals("-extends") && ++i < args.length) { + String targetExtends = args[i]; + Class superClass; + try { + superClass = Class.forName(targetExtends); + } catch (ClassNotFoundException e) { + throw new Error(e.toString()); // TODO: better error + } + compiler.setTargetExtends(superClass); + continue; + } + if (arg.equals("-implements") && ++i < args.length) { + // TODO: allow for multiple comma-separated interfaces. + String targetImplements = args[i]; + StringTokenizer st = new StringTokenizer(targetImplements, + ","); + Vector v = new Vector(); + while (st.hasMoreTokens()) { + String className = st.nextToken(); + try { + v.addElement(Class.forName(className)); + } catch (ClassNotFoundException e) { + throw new Error(e.toString()); // TODO: better error + } + } + Class[] implementsClasses = new Class[v.size()]; + v.copyInto(implementsClasses); + compiler.setTargetImplements(implementsClasses); + continue; + } + if (arg.equals("-d") && ++i < args.length) { + destinationDir = args[i]; + continue; + } + badUsage(arg); + return null; + } + // no file name + p(ToolErrorReporter.getMessage("msg.no.file")); + return null; + } + /** + * Print a usage message. + */ + private static void badUsage(String s) { + System.err.println(ToolErrorReporter.getMessage( + "msg.jsc.bad.usage", Main.class.getName(), s)); + } + + /** + * Compile JavaScript source. + * + */ + public void processSource(String[] filenames) + { + for (int i = 0; i != filenames.length; ++i) { + String filename = filenames[i]; + if (!filename.endsWith(".js")) { + addError("msg.extension.not.js", filename); + return; + } + File f = new File(filename); + String source = readSource(f); + if (source == null) return; + + String mainClassName = targetName; + if (mainClassName == null) { + String name = f.getName(); + String nojs = name.substring(0, name.length() - 3); + mainClassName = getClassName(nojs); + } + if (targetPackage.length() != 0) { + mainClassName = targetPackage+"."+mainClassName; + } + + Object[] compiled + = compiler.compileToClassFiles(source, filename, 1, + mainClassName); + if (compiled == null || compiled.length == 0) { + return; + } + + File targetTopDir = null; + if (destinationDir != null) { + targetTopDir = new File(destinationDir); + } else { + String parent = f.getParent(); + if (parent != null) { + targetTopDir = new File(parent); + } + } + for (int j = 0; j != compiled.length; j += 2) { + String className = (String)compiled[j]; + byte[] bytes = (byte[])compiled[j + 1]; + File outfile = getOutputFile(targetTopDir, className); + try { + FileOutputStream os = new FileOutputStream(outfile); + try { + os.write(bytes); + } finally { + os.close(); + } + } catch (IOException ioe) { + addFormatedError(ioe.toString()); + } + } + } + } + + private String readSource(File f) + { + if (!f.exists()) { + addError("msg.jsfile.not.found", f.getAbsolutePath()); + return null; + } + try { + Reader in = new FileReader(f); + try { + return Kit.readReader(in); + } finally { + in.close(); + } + } catch (FileNotFoundException ex) { + addError("msg.couldnt.open", f.getAbsolutePath()); + } catch (IOException ioe) { + addFormatedError(ioe.toString()); + } + return null; + } + + private File getOutputFile(File parentDir, String className) + { + String path = className.replace('.', File.separatorChar); + path = path.concat(".class"); + File f = new File(parentDir, path); + String dirPath = f.getParent(); + if (dirPath != null) { + File dir = new File(dirPath); + if (!dir.exists()) { + dir.mkdirs(); + } + } + return f; + } + + /** + * Verify that class file names are legal Java identifiers. Substitute + * illegal characters with underscores, and prepend the name with an + * underscore if the file name does not begin with a JavaLetter. + */ + + String getClassName(String name) { + char[] s = new char[name.length()+1]; + char c; + int j = 0; + + if (!Character.isJavaIdentifierStart(name.charAt(0))) { + s[j++] = '_'; + } + for (int i=0; i < name.length(); i++, j++) { + c = name.charAt(i); + if ( Character.isJavaIdentifierPart(c) ) { + s[j] = c; + } else { + s[j] = '_'; + } + } + return (new String(s)).trim(); + } + + private static void p(String s) { + System.out.println(s); + } + + private void addError(String messageId, String arg) + { + String msg; + if (arg == null) { + msg = ToolErrorReporter.getMessage(messageId); + } else { + msg = ToolErrorReporter.getMessage(messageId, arg); + } + addFormatedError(msg); + } + + private void addFormatedError(String message) + { + reporter.error(message, null, -1, null, -1); + } + + private boolean printHelp; + private ToolErrorReporter reporter; + private CompilerEnvirons compilerEnv; + private ClassCompiler compiler; + private String targetName; + private String targetPackage; + private String destinationDir; +} + |