author | darcy |
Wed, 17 Feb 2010 14:30:17 -0800 | |
changeset 4937 | 2fc03fb01efa |
parent 4936 | abf1a22d9bcf |
child 5520 | 86e4b9a9da40 |
permissions | -rw-r--r-- |
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/* |
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* Copyright 2004-2005 Sun Microsystems, Inc. All Rights Reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Sun designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Sun in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
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* CA 95054 USA or visit www.sun.com if you need additional information or |
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* have any questions. |
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*/ |
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package com.sun.mirror.util; |
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import com.sun.mirror.declaration.*; |
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import java.util.SortedSet; |
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import java.util.TreeSet; |
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/** |
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* A visitor for declarations that scans declarations contained within |
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* the given declaration in source code order. For example, when |
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* visiting a class, the methods, fields, constructors, and nested |
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* types of the class are also visited. |
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* |
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* To control the processing done on a declaration, users of this |
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* class pass in their own visitors for pre and post processing. The |
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* preprocessing visitor is called before the contained declarations |
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* are scanned; the postprocessing visitor is called after the |
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* contained declarations are scanned. |
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* |
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* @deprecated All components of this API have been superseded by the |
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* standardized annotation processing API. The replacement for the |
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* functionality of this class is {@link |
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* javax.lang.model.util.SimpleElementVisitor6}. |
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* |
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* @author Joseph D. Darcy |
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* @author Scott Seligman |
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* @since 1.5 |
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*/ |
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@Deprecated |
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@SuppressWarnings("deprecation") |
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class SourceOrderDeclScanner extends DeclarationScanner { |
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static class SourceOrderComparator implements java.util.Comparator<Declaration> { |
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SourceOrderComparator(){} |
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static boolean equals(Declaration d1, Declaration d2) { |
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return d1 == d2 || (d1 != null && d1.equals(d2)); |
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} |
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private static class DeclPartialOrder extends com.sun.mirror.util.SimpleDeclarationVisitor { |
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private int value = 1000; |
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private static int staticAdjust(Declaration d) { |
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return d.getModifiers().contains(Modifier.STATIC)?0:1; |
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} |
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DeclPartialOrder() {} |
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public int getValue() { return value; } |
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@Override |
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public void visitTypeParameterDeclaration(TypeParameterDeclaration d) {value = 0;} |
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@Override |
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public void visitEnumConstantDeclaration(EnumConstantDeclaration d) {value = 1;} |
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@Override |
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public void visitClassDeclaration(ClassDeclaration d) {value = 2 + staticAdjust(d);} |
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@Override |
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public void visitInterfaceDeclaration(InterfaceDeclaration d) {value = 4;} |
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@Override |
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public void visitEnumDeclaration(EnumDeclaration d) {value = 6;} |
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@Override |
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public void visitAnnotationTypeDeclaration(AnnotationTypeDeclaration d) {value = 8;} |
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@Override |
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public void visitFieldDeclaration(FieldDeclaration d) {value = 10 + staticAdjust(d);} |
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@Override |
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public void visitConstructorDeclaration(ConstructorDeclaration d) {value = 12;} |
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@Override |
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public void visitMethodDeclaration(MethodDeclaration d) {value = 14 + staticAdjust(d);} |
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} |
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@SuppressWarnings("cast") |
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private int compareEqualPosition(Declaration d1, Declaration d2) { |
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abf1a22d9bcf
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darcy
parents:
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assert |
4937
2fc03fb01efa
6927061: Refactor apt implemenation to use code from JSR 269
darcy
parents:
4936
diff
changeset
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(d1.getPosition() == d2.getPosition()) || // Handles two null positions. |
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6926703: apt tests should run with assertions enabled
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(d1.getPosition().file().compareTo(d2.getPosition().file()) == 0 && |
abf1a22d9bcf
6926703: apt tests should run with assertions enabled
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d1.getPosition().line() == d2.getPosition().line() && |
abf1a22d9bcf
6926703: apt tests should run with assertions enabled
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parents:
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d1.getPosition().column() == d2.getPosition().column()); |
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DeclPartialOrder dpo1 = new DeclPartialOrder(); |
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DeclPartialOrder dpo2 = new DeclPartialOrder(); |
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d1.accept(dpo1); |
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d2.accept(dpo2); |
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int difference = dpo1.getValue() - dpo2.getValue(); |
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if (difference != 0) |
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return difference; |
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else { |
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int result = d1.getSimpleName().compareTo(d2.getSimpleName()); |
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if (result != 0) |
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return result; |
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return (int)( Long.signum((long)System.identityHashCode(d1) - |
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(long)System.identityHashCode(d2))); |
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} |
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} |
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public int compare(Declaration d1, Declaration d2) { |
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if (equals(d1, d2)) |
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return 0; |
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SourcePosition p1 = d1.getPosition(); |
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SourcePosition p2 = d2.getPosition(); |
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if (p1 == null && p2 != null) |
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return 1; |
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else if (p1 != null && p2 == null) |
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return -1; |
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else if(p1 == null && p2 == null) |
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return compareEqualPosition(d1, d2); |
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else { |
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assert p1 != null && p2 != null; |
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int fileComp = p1.file().compareTo(p2.file()) ; |
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if (fileComp == 0) { |
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long diff = (long)p1.line() - (long)p2.line(); |
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if (diff == 0) { |
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diff = Long.signum((long)p1.column() - (long)p2.column()); |
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if (diff != 0) |
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return (int)diff; |
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else { |
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// declarations may be two |
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// compiler-generated members with the |
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// same source position |
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return compareEqualPosition(d1, d2); |
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} |
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} else |
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return (diff<0)? -1:1; |
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} else |
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return fileComp; |
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} |
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} |
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} |
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final static java.util.Comparator<Declaration> comparator = new SourceOrderComparator(); |
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SourceOrderDeclScanner(DeclarationVisitor pre, DeclarationVisitor post) { |
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super(pre, post); |
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} |
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/** |
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* Visits a type declaration. |
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* |
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* @param d the declaration to visit |
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*/ |
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public void visitTypeDeclaration(TypeDeclaration d) { |
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d.accept(pre); |
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SortedSet<Declaration> decls = new |
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TreeSet<Declaration>(SourceOrderDeclScanner.comparator) ; |
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for(TypeParameterDeclaration tpDecl: d.getFormalTypeParameters()) { |
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decls.add(tpDecl); |
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} |
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for(FieldDeclaration fieldDecl: d.getFields()) { |
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decls.add(fieldDecl); |
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} |
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for(MethodDeclaration methodDecl: d.getMethods()) { |
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decls.add(methodDecl); |
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} |
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for(TypeDeclaration typeDecl: d.getNestedTypes()) { |
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decls.add(typeDecl); |
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} |
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for(Declaration decl: decls ) |
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decl.accept(this); |
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d.accept(post); |
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} |
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/** |
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* Visits a class declaration. |
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* |
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* @param d the declaration to visit |
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*/ |
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public void visitClassDeclaration(ClassDeclaration d) { |
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d.accept(pre); |
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SortedSet<Declaration> decls = new |
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TreeSet<Declaration>(SourceOrderDeclScanner.comparator) ; |
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for(TypeParameterDeclaration tpDecl: d.getFormalTypeParameters()) { |
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decls.add(tpDecl); |
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} |
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for(FieldDeclaration fieldDecl: d.getFields()) { |
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decls.add(fieldDecl); |
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} |
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for(MethodDeclaration methodDecl: d.getMethods()) { |
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decls.add(methodDecl); |
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} |
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for(TypeDeclaration typeDecl: d.getNestedTypes()) { |
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decls.add(typeDecl); |
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} |
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for(ConstructorDeclaration ctorDecl: d.getConstructors()) { |
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decls.add(ctorDecl); |
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} |
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for(Declaration decl: decls ) |
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decl.accept(this); |
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d.accept(post); |
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} |
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public void visitExecutableDeclaration(ExecutableDeclaration d) { |
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d.accept(pre); |
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SortedSet<Declaration> decls = new |
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TreeSet<Declaration>(SourceOrderDeclScanner.comparator) ; |
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for(TypeParameterDeclaration tpDecl: d.getFormalTypeParameters()) |
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decls.add(tpDecl); |
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for(ParameterDeclaration pDecl: d.getParameters()) |
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decls.add(pDecl); |
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for(Declaration decl: decls ) |
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decl.accept(this); |
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d.accept(post); |
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} |
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} |