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 * Copyright (c) 1997, 2018, 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.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * 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
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package com.sun.tools.javadoc.main;

import java.lang.reflect.Modifier;
import java.text.CollationKey;

import com.sun.javadoc.*;
import com.sun.source.util.TreePath;
import com.sun.tools.javac.code.Attribute;
import com.sun.tools.javac.code.Symbol;
import com.sun.tools.javac.code.Symbol.ClassSymbol;
import com.sun.tools.javac.tree.JCTree;
import com.sun.tools.javac.tree.JCTree.JCCompilationUnit;
import com.sun.tools.javac.util.Position;

Represents a java program element: class, interface, field,
constructor, or method.
This is an abstract class dealing with information common to
these elements.
 
This is NOT part of any supported API.
 If you write code that depends on this, you do so at your own risk.
 This code and its internal interfaces are subject to change or
 deletion without notice.
Author:
Robert Field, Neal Gafter (rewrite), Scott Seligman (generics, enums, annotations)
See Also:
MemberDocImpl
ClassDocImpl/**
 * Represents a java program element: class, interface, field,
 * constructor, or method.
 * This is an abstract class dealing with information common to
 * these elements.
 *
 *  <p><b>This is NOT part of any supported API.
 *  If you write code that depends on this, you do so at your own risk.
 *  This code and its internal interfaces are subject to change or
 *  deletion without notice.</b>
 *
 * @see MemberDocImpl
 * @see ClassDocImpl
 *
 * @author Robert Field
 * @author Neal Gafter (rewrite)
 * @author Scott Seligman (generics, enums, annotations)
 */
@Deprecated(since="9", forRemoval=true)
@SuppressWarnings("removal")
public abstract class ProgramElementDocImpl
        extends DocImpl implements ProgramElementDoc {

    private final Symbol sym;

    // For source position information.
    JCTree tree = null;
    Position.LineMap lineMap = null;


    // Cache for getModifiers().
    private int modifiers = -1;

    protected ProgramElementDocImpl(DocEnv env, Symbol sym, TreePath treePath) {
        super(env, treePath);
        this.sym = sym;
        if (treePath != null) {
            tree = (JCTree) treePath.getLeaf();
            lineMap = ((JCCompilationUnit) treePath.getCompilationUnit()).lineMap;
        }
    }

    @Override
    void setTreePath(TreePath treePath) {
        super.setTreePath(treePath);
        this.tree = (JCTree) treePath.getLeaf();
        this.lineMap = ((JCCompilationUnit) treePath.getCompilationUnit()).lineMap;
    }

    
Subclasses override to identify the containing class
/**
     * Subclasses override to identify the containing class
     */
    protected abstract ClassSymbol getContainingClass();

    
Returns the flags in terms of javac's flags
/**
     * Returns the flags in terms of javac's flags
     */
    abstract protected long getFlags();

    
Returns the modifier flags in terms of java.lang.reflect.Modifier.
/**
     * Returns the modifier flags in terms of java.lang.reflect.Modifier.
     */
    protected int getModifiers() {
        if (modifiers == -1) {
            modifiers = DocEnv.translateModifiers(getFlags());
        }
        return modifiers;
    }

    
Get the containing class of this program element.
Returns:
a ClassDocImpl for this element's containing class.
If this is a class with no outer class, return null./**
     * Get the containing class of this program element.
     *
     * @return a ClassDocImpl for this element's containing class.
     * If this is a class with no outer class, return null.
     */
    public ClassDoc containingClass() {
        if (getContainingClass() == null) {
            return null;
        }
        return env.getClassDoc(getContainingClass());
    }

    
Return the package that this member is contained in.
Return "" if in unnamed package.
/**
     * Return the package that this member is contained in.
     * Return "" if in unnamed package.
     */
    public PackageDoc containingPackage() {
        return env.getPackageDoc(getContainingClass().packge());
    }

    
Get the modifier specifier integer.
See Also:
Modifier/**
     * Get the modifier specifier integer.
     *
     * @see java.lang.reflect.Modifier
     */
    public int modifierSpecifier() {
        int modifiers = getModifiers();
        if (isMethod() && containingClass().isInterface())
            // Remove the implicit abstract modifier.
            return modifiers & ~Modifier.ABSTRACT;
        return modifiers;
    }

    
Get modifiers string.
Example, for:
  public abstract int foo() { ... }
modifiers() would return:
  'public abstract'

Annotations are not included.
/**
     * Get modifiers string.
     * <pre>
     * Example, for:
     *   public abstract int foo() { ... }
     * modifiers() would return:
     *   'public abstract'
     * </pre>
     * Annotations are not included.
     */
    public String modifiers() {
        int modifiers = getModifiers();
        if (isAnnotationTypeElement() ||
                (isMethod() && containingClass().isInterface())) {
            // Remove the implicit abstract modifier.
            return Modifier.toString(modifiers & ~Modifier.ABSTRACT);
        } else {
            return Modifier.toString(modifiers);
        }
    }

    
Get the annotations of this program element.
Return an empty array if there are none.
/**
     * Get the annotations of this program element.
     * Return an empty array if there are none.
     */
    public AnnotationDesc[] annotations() {
        AnnotationDesc res[] = new AnnotationDesc[sym.getRawAttributes().length()];
        int i = 0;
        for (Attribute.Compound a : sym.getRawAttributes()) {
            res[i++] = new AnnotationDescImpl(env, a);
        }
        return res;
    }

    
Return true if this program element is public
/**
     * Return true if this program element is public
     */
    public boolean isPublic() {
        int modifiers = getModifiers();
        return Modifier.isPublic(modifiers);
    }

    
Return true if this program element is protected
/**
     * Return true if this program element is protected
     */
    public boolean isProtected() {
        int modifiers = getModifiers();
        return Modifier.isProtected(modifiers);
    }

    
Return true if this program element is private
/**
     * Return true if this program element is private
     */
    public boolean isPrivate() {
        int modifiers = getModifiers();
        return Modifier.isPrivate(modifiers);
    }

    
Return true if this program element is package private
/**
     * Return true if this program element is package private
     */
    public boolean isPackagePrivate() {
        return !(isPublic() || isPrivate() || isProtected());
    }

    
Return true if this program element is static
/**
     * Return true if this program element is static
     */
    public boolean isStatic() {
        int modifiers = getModifiers();
        return Modifier.isStatic(modifiers);
    }

    
Return true if this program element is final
/**
     * Return true if this program element is final
     */
    public boolean isFinal() {
        int modifiers = getModifiers();
        return Modifier.isFinal(modifiers);
    }

    
Generate a key for sorting.
/**
     * Generate a key for sorting.
     */
    CollationKey generateKey() {
        String k = name();
        // System.out.println("COLLATION KEY FOR " + this + " is \"" + k + "\"");
        return env.doclocale.collator.getCollationKey(k);
    }

}