From 98e2821b38a775737e42a2479a6bc65107210859 Mon Sep 17 00:00:00 2001 From: Elliot Kroo Date: Thu, 11 Mar 2010 15:21:30 -0800 Subject: reorganizing the first level of folders (trunk/branch folders are not the git way :) --- .../javascript/optimizer/ClassCompiler.java | 214 +++++++++++++++++++++ 1 file changed, 214 insertions(+) create mode 100644 infrastructure/rhino1_7R1/src/org/mozilla/javascript/optimizer/ClassCompiler.java (limited to 'infrastructure/rhino1_7R1/src/org/mozilla/javascript/optimizer/ClassCompiler.java') diff --git a/infrastructure/rhino1_7R1/src/org/mozilla/javascript/optimizer/ClassCompiler.java b/infrastructure/rhino1_7R1/src/org/mozilla/javascript/optimizer/ClassCompiler.java new file mode 100644 index 0000000..4a69c6a --- /dev/null +++ b/infrastructure/rhino1_7R1/src/org/mozilla/javascript/optimizer/ClassCompiler.java @@ -0,0 +1,214 @@ +/* ***** 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 Rhino code, released + * May 6, 1999. + * + * The Initial Developer of the Original Code is + * Netscape Communications Corporation. + * Portions created by the Initial Developer are Copyright (C) 1997-2000 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * Igor Bukanov + * + * 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.optimizer; + +import org.mozilla.javascript.*; + +/** + * Generates class files from script sources. + * + * since 1.5 Release 5 + * @author Igor Bukanov + */ + +public class ClassCompiler +{ + /** + * Construct ClassCompiler that uses the specified compiler environment + * when generating classes. + */ + public ClassCompiler(CompilerEnvirons compilerEnv) + { + if (compilerEnv == null) throw new IllegalArgumentException(); + this.compilerEnv = compilerEnv; + this.mainMethodClassName = Codegen.DEFAULT_MAIN_METHOD_CLASS; + } + + /** + * Set the class name to use for main method implementation. + * The class must have a method matching + * public static void main(Script sc, String[] args), it will be + * called when main(String[] args) is called in the generated + * class. The class name should be fully qulified name and include the + * package name like in org.foo.Bar. + */ + public void setMainMethodClass(String className) + { + // XXX Should this check for a valid class name? + mainMethodClassName = className; + } + + /** + * Get the name of the class for main method implementation. + * @see #setMainMethodClass(String) + */ + public String getMainMethodClass() + { + return mainMethodClassName; + } + + /** + * Get the compiler environment the compiler uses. + */ + public CompilerEnvirons getCompilerEnv() + { + return compilerEnv; + } + + /** + * Get the class that the generated target will extend. + */ + public Class getTargetExtends() + { + return targetExtends; + } + + /** + * Set the class that the generated target will extend. + * + * @param extendsClass the class it extends + */ + public void setTargetExtends(Class extendsClass) + { + targetExtends = extendsClass; + } + + /** + * Get the interfaces that the generated target will implement. + */ + public Class[] getTargetImplements() + { + return targetImplements == null ? null : (Class[])targetImplements.clone(); + } + + /** + * Set the interfaces that the generated target will implement. + * + * @param implementsClasses an array of Class objects, one for each + * interface the target will extend + */ + public void setTargetImplements(Class[] implementsClasses) + { + targetImplements = implementsClasses == null ? null : (Class[])implementsClasses.clone(); + } + + /** + * Build class name for a auxiliary class generated by compiler. + * If the compiler needs to generate extra classes beyond the main class, + * it will call this function to build the auxiliary class name. + * The default implementation simply appends auxMarker to mainClassName + * but this can be overridden. + */ + protected String makeAuxiliaryClassName(String mainClassName, + String auxMarker) + { + return mainClassName+auxMarker; + } + + /** + * Compile JavaScript source into one or more Java class files. + * The first compiled class will have name mainClassName. + * If the results of {@link #getTargetExtends()} or + * {@link #getTargetImplements()} are not null, then the first compiled + * class will extend the specified super class and implement + * specified interfaces. + * + * @return array where elements with even indexes specifies class name + * and the following odd index gives class file body as byte[] + * array. The initial element of the array always holds + * mainClassName and array[1] holds its byte code. + */ + public Object[] compileToClassFiles(String source, + String sourceLocation, + int lineno, + String mainClassName) + { + /*APPJET*/ + Parser p = + InformativeParser.makeParser(compilerEnv, + compilerEnv.getErrorReporter()); + ScriptOrFnNode tree = p.parse(source, sourceLocation, lineno); + String encodedSource = p.getEncodedSource(); + + Class superClass = getTargetExtends(); + Class[] interfaces = getTargetImplements(); + String scriptClassName; + boolean isPrimary = (interfaces == null && superClass == null); + if (isPrimary) { + scriptClassName = mainClassName; + } else { + scriptClassName = makeAuxiliaryClassName(mainClassName, "1"); + } + + Codegen codegen = new Codegen(); + codegen.setMainMethodClass(mainMethodClassName); + byte[] scriptClassBytes + = codegen.compileToClassFile(compilerEnv, scriptClassName, + tree, encodedSource, + false); + + if (isPrimary) { + return new Object[] { scriptClassName, scriptClassBytes }; + } + int functionCount = tree.getFunctionCount(); + ObjToIntMap functionNames = new ObjToIntMap(functionCount); + for (int i = 0; i != functionCount; ++i) { + FunctionNode ofn = tree.getFunctionNode(i); + String name = ofn.getFunctionName(); + if (name != null && name.length() != 0) { + functionNames.put(name, ofn.getParamCount()); + } + } + if (superClass == null) { + superClass = ScriptRuntime.ObjectClass; + } + byte[] mainClassBytes + = JavaAdapter.createAdapterCode( + functionNames, mainClassName, + superClass, interfaces, scriptClassName); + + return new Object[] { mainClassName, mainClassBytes, + scriptClassName, scriptClassBytes }; + } + + private String mainMethodClassName; + private CompilerEnvirons compilerEnv; + private Class targetExtends; + private Class[] targetImplements; + +} + -- cgit v1.2.3