jdk8-mips64-public/langtools: src/share/classes/com/sun/tools/javadoc/MethodDocImpl.java@859dc787b52b (annotated)

src/share/classes/com/sun/tools/javadoc/MethodDocImpl.java@859dc787b52b (annotated)

src/share/classes/com/sun/tools/javadoc/MethodDocImpl.java

Thu, 24 May 2018 16:48:51 +0800

author: aoqi
date: Thu, 24 May 2018 16:48:51 +0800
changeset 3295: 859dc787b52b
parent 2906: d3a51adc115f
parent 2525: 2eb010b6cb22
permissions: -rw-r--r--

Merge

 /*
  * Copyright (c) 1997, 2013, 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
  * or visit www.oracle.com if you need additional information or have any
  * questions.
  */
 package com.sun.tools.javadoc;
 import java.lang.reflect.Modifier;
 import com.sun.javadoc.*;
 import com.sun.source.util.TreePath;
 import com.sun.tools.javac.code.*;
 import com.sun.tools.javac.code.Symbol.*;
 import com.sun.tools.javac.code.Type;
 import static com.sun.tools.javac.code.TypeTag.CLASS;
 /**
  * Represents a method of a java class.
  *
  *  <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>
  *
  * @since 1.2
  * @author Robert Field
  * @author Neal Gafter (rewrite)
  */
 public class MethodDocImpl
         extends ExecutableMemberDocImpl implements MethodDoc {
     /**
      * constructor.
      */
     public MethodDocImpl(DocEnv env, MethodSymbol sym) {
         super(env, sym);
     }
     /**
      * constructor.
      */
     public MethodDocImpl(DocEnv env, MethodSymbol sym, TreePath treePath) {
         super(env, sym, treePath);
     }
     /**
      * Return true if it is a method, which it is.
      * Note: constructors are not methods.
      * This method is overridden by AnnotationTypeElementDocImpl.
      *
      * @return true
      */
     public boolean isMethod() {
         return true;
     }
     /**
      * Return true if this method is default
      */
     public boolean isDefault() {
         return (sym.flags() & Flags.DEFAULT) != 0;
     }
     /**
      * Return true if this method is abstract
      */
     public boolean isAbstract() {
         return (Modifier.isAbstract(getModifiers()) && !isDefault());
     }
     /**
      * Get return type.
      *
      * @return the return type of this method, null if it
      * is a constructor.
      */
     public com.sun.javadoc.Type returnType() {
         return TypeMaker.getType(env, sym.type.getReturnType(), false);
     }
     /**
      * Return the class that originally defined the method that
      * is overridden by the current definition, or null if no
      * such class exists.
      *
      * @return a ClassDocImpl representing the superclass that
      * originally defined this method, null if this method does
      * not override a definition in a superclass.
      */
     public ClassDoc overriddenClass() {
         com.sun.javadoc.Type t = overriddenType();
         return (t != null) ? t.asClassDoc() : null;
     }
     /**
      * Return the type containing the method that this method overrides.
      * It may be a <code>ClassDoc</code> or a <code>ParameterizedType</code>.
      */
     public com.sun.javadoc.Type overriddenType() {
         if ((sym.flags() & Flags.STATIC) != 0) {
             return null;
         }
         ClassSymbol origin = (ClassSymbol)sym.owner;
         for (Type t = env.types.supertype(origin.type);
              t.hasTag(CLASS);
              t = env.types.supertype(t)) {
             ClassSymbol c = (ClassSymbol)t.tsym;
             for (Scope.Entry e = membersOf(c).lookup(sym.name); e.scope != null; e = e.next()) {
                 if (sym.overrides(e.sym, origin, env.types, true)) {
                     return TypeMaker.getType(env, t);
                 }
             }
         }
         return null;
     }
     /**
      * Return the method that this method overrides.
      *
      * @return a MethodDoc representing a method definition
      * in a superclass this method overrides, null if
      * this method does not override.
      */
     public MethodDoc overriddenMethod() {
         // Real overriding only.  Static members are simply hidden.
         // Likewise for constructors, but the MethodSymbol.overrides
         // method takes this into account.
         if ((sym.flags() & Flags.STATIC) != 0) {
             return null;
         }
         // Derived from  com.sun.tools.javac.comp.Check.checkOverride .
         ClassSymbol origin = (ClassSymbol)sym.owner;
         for (Type t = env.types.supertype(origin.type);
              t.hasTag(CLASS);
              t = env.types.supertype(t)) {
             ClassSymbol c = (ClassSymbol)t.tsym;
             for (Scope.Entry e = membersOf(c).lookup(sym.name); e.scope != null; e = e.next()) {
                 if (sym.overrides(e.sym, origin, env.types, true)) {
                     return env.getMethodDoc((MethodSymbol)e.sym);
                 }
             }
         }
         return null;
     }
     /**Retrieve members of c, ignoring any CompletionFailures that occur. */
     private Scope membersOf(ClassSymbol c) {
         try {
             return c.members();
         } catch (CompletionFailure cf) {
             /* Quietly ignore completion failures and try again - the type
              * for which the CompletionFailure was thrown shouldn't be completed
              * again by the completer that threw the CompletionFailure.
              */
             return membersOf(c);
         }
     }
     /**
      * Tests whether this method overrides another.
      * The overridden method may be one declared in a superclass or
      * a superinterface (unlike {@link #overriddenMethod()}).
      *
      * <p> When a non-abstract method overrides an abstract one, it is
      * also said to <i>implement</i> the other.
      *
      * @param meth  the other method to examine
      * @return <tt>true</tt> if this method overrides the other
      */
     public boolean overrides(MethodDoc meth) {
         MethodSymbol overridee = ((MethodDocImpl) meth).sym;
         ClassSymbol origin = (ClassSymbol) sym.owner;
         return sym.name == overridee.name &&
                // not reflexive as per JLS
                sym != overridee &&
                // we don't care if overridee is static, though that wouldn't
                // compile
                !sym.isStatic() &&
                // sym, whose declaring type is the origin, must be
                // in a subtype of overridee's type
                env.types.asSuper(origin.type, overridee.owner) != null &&
                // check access and signatures; don't check return types
                sym.overrides(overridee, origin, env.types, false);
     }
     public String name() {
         if (name == null) {
             name = sym.name.toString();
         }
         return name;
     }
     private String name;
     public String qualifiedName() {
         if (qualifiedName == null) {
             qualifiedName =  sym.enclClass().getQualifiedName() + "." + sym.name;
         }
         return qualifiedName;
     }
     private String qualifiedName;
     /**
      * Returns a string representation of this method.  Includes the
      * qualified signature, the qualified method name, and any type
      * parameters.  Type parameters follow the class name, as they do
      * in the syntax for invoking methods with explicit type parameters.
      */
     public String toString() {
         return sym.enclClass().getQualifiedName() +
                 "." + typeParametersString() + name() + signature();
     }
 }

Mercurial > jdk8-mips64-public > langtools / annotate

src/share/classes/com/sun/tools/javadoc/MethodDocImpl.java@859dc787b52b (annotated)

src/share/classes/com/sun/tools/javadoc/MethodDocImpl.java