| /* |
| * Copyright 2003-2007 the original author or authors. |
| * |
| * Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.codehaus.groovy.ast; |
| |
| import groovy.lang.GroovyClassLoader; |
| |
| import java.security.CodeSource; |
| import java.util.ArrayList; |
| import java.util.HashMap; |
| import java.util.Iterator; |
| import java.util.List; |
| import java.util.Map; |
| |
| import org.codehaus.groovy.control.CompilerConfiguration; |
| import org.codehaus.groovy.control.SourceUnit; |
| import org.codehaus.groovy.control.messages.SyntaxErrorMessage; |
| import org.codehaus.groovy.syntax.SyntaxException; |
| |
| /** |
| * Represents the entire contents of a compilation step which consists of one |
| * or more {@link ModuleNode}instances |
| * |
| * @author <a href="mailto:james@coredevelopers.net">James Strachan </a> |
| * @version $Revision$ |
| */ |
| public class CompileUnit { |
| |
| private final List modules = new ArrayList(); |
| private Map classes = new HashMap(); |
| private CompilerConfiguration config; |
| private GroovyClassLoader classLoader; |
| private CodeSource codeSource; |
| private Map classesToCompile = new HashMap(); |
| private Map classNameToSource = new HashMap(); |
| |
| public CompileUnit(GroovyClassLoader classLoader, CompilerConfiguration config) { |
| this(classLoader, null, config); |
| } |
| |
| public CompileUnit(GroovyClassLoader classLoader, CodeSource codeSource, CompilerConfiguration config) { |
| this.classLoader = classLoader; |
| this.config = config; |
| this.codeSource = codeSource; |
| } |
| |
| public List getModules() { |
| return modules; |
| } |
| |
| public void addModule(ModuleNode node) { |
| // node==null means a compilation error prevented |
| // groovy from building an ast |
| if (node==null) return; |
| modules.add(node); |
| node.setUnit(this); |
| addClasses(node.getClasses()); |
| } |
| |
| /** |
| * @return the ClassNode for the given qualified name or returns null if |
| * the name does not exist in the current compilation unit |
| * (ignoring the .class files on the classpath) |
| */ |
| public ClassNode getClass(String name) { |
| ClassNode cn = (ClassNode) classes.get(name); |
| if (cn!=null) return cn; |
| return (ClassNode) classesToCompile.get(name); |
| } |
| |
| /** |
| * @return a list of all the classes in each module in the compilation unit |
| */ |
| public List getClasses() { |
| List answer = new ArrayList(); |
| for (Iterator iter = modules.iterator(); iter.hasNext();) { |
| ModuleNode module = (ModuleNode) iter.next(); |
| answer.addAll(module.getClasses()); |
| } |
| return answer; |
| } |
| |
| public CompilerConfiguration getConfig() { |
| return config; |
| } |
| |
| public GroovyClassLoader getClassLoader() { |
| return classLoader; |
| } |
| |
| public CodeSource getCodeSource() { |
| return codeSource; |
| } |
| |
| /** |
| * Appends all of the fully qualified class names in this |
| * module into the given map |
| */ |
| void addClasses(List classList) { |
| for (Iterator iter = classList.iterator(); iter.hasNext();) { |
| addClass((ClassNode) iter.next()); |
| } |
| } |
| |
| /** |
| * Adds a class to the unit. |
| */ |
| public void addClass(ClassNode node) { |
| node = node.redirect(); |
| String name = node.getName(); |
| ClassNode stored = (ClassNode) classes.get(name); |
| if (stored != null && stored != node) { |
| // we have a duplicate class! |
| // One possibility for this is, that we delcared a script and a |
| // class in the same file and named the class like the file |
| SourceUnit nodeSource = node.getModule().getContext(); |
| SourceUnit storedSource = stored.getModule().getContext(); |
| String txt = "Invalid duplicate class definition of class "+node.getName()+" : "; |
| if (nodeSource==storedSource) { |
| // same class in same source |
| txt += "The source "+nodeSource.getName()+" contains at last two defintions of the class "+node.getName()+".\n"; |
| if (node.isScriptBody() || stored.isScriptBody()) { |
| txt += "One of the classes is a explicit generated class using the class statement, the other is a class generated from"+ |
| " the script body based on the file name. Solutions are to change the file name or to change the class name.\n"; |
| } |
| } else { |
| txt += "The sources "+nodeSource.getName()+" and "+storedSource.getName()+" are containing both a class of the name "+node.getName()+".\n"; |
| } |
| nodeSource.getErrorCollector().addErrorAndContinue( |
| new SyntaxErrorMessage(new SyntaxException(txt, node.getLineNumber(), node.getColumnNumber()), nodeSource) |
| ); |
| } |
| classes.put(name, node); |
| |
| if (classesToCompile.containsKey(name)) { |
| ClassNode cn = (ClassNode) classesToCompile.get(name); |
| cn.setRedirect(node); |
| classesToCompile.remove(name); |
| } |
| } |
| |
| /** |
| * this emthod actually does not compile a class. It's only |
| * a marker that this type has to be compiled by the CompilationUnit |
| * at the end of a parse step no node should be be left. |
| */ |
| public void addClassNodeToCompile(ClassNode node, SourceUnit location) { |
| classesToCompile.put(node.getName(),node); |
| classNameToSource.put(node.getName(),location); |
| } |
| |
| public SourceUnit getScriptSourceLocation(String className) { |
| return (SourceUnit) classNameToSource.get(className); |
| } |
| |
| public boolean hasClassNodeToCompile(){ |
| return !classesToCompile.isEmpty(); |
| } |
| |
| public Iterator iterateClassNodeToCompile(){ |
| return classesToCompile.keySet().iterator(); |
| } |
| } |