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

Tue, 23 Oct 2012 13:20:37 -0700

author
jjg
date
Tue, 23 Oct 2012 13:20:37 -0700
changeset 1372
78962d89f283
parent 1359
25e14ad23cef
child 1521
71f35e4b93a5
permissions
-rw-r--r--

8000741: refactor javadoc to use abstraction to handle relative paths
Reviewed-by: darcy

     1 /*
     2  * Copyright (c) 2003, 2012, Oracle and/or its affiliates. All rights reserved.
     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     4  *
     5  * This code is free software; you can redistribute it and/or modify it
     6  * under the terms of the GNU General Public License version 2 only, as
     7  * published by the Free Software Foundation.  Oracle designates this
     8  * particular file as subject to the "Classpath" exception as provided
     9  * by Oracle in the LICENSE file that accompanied this code.
    10  *
    11  * This code is distributed in the hope that it will be useful, but WITHOUT
    12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    14  * version 2 for more details (a copy is included in the LICENSE file that
    15  * accompanied this code).
    16  *
    17  * You should have received a copy of the GNU General Public License version
    18  * 2 along with this work; if not, write to the Free Software Foundation,
    19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
    20  *
    21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
    22  * or visit www.oracle.com if you need additional information or have any
    23  * questions.
    24  */
    26 package com.sun.tools.javadoc;
    28 import com.sun.javadoc.*;
    30 import com.sun.tools.javac.code.Kinds;
    31 import com.sun.tools.javac.code.Symbol;
    32 import com.sun.tools.javac.code.Symbol.ClassSymbol;
    33 import com.sun.tools.javac.code.Symbol.MethodSymbol;
    34 import com.sun.tools.javac.code.Type;
    35 import com.sun.tools.javac.code.Type.TypeVar;
    36 import com.sun.tools.javac.util.List;
    37 import com.sun.tools.javac.util.Name;
    38 import com.sun.tools.javac.util.Names;
    40 /**
    41  * Implementation of <code>TypeVariable</code>, which
    42  * represents a type variable.
    43  *
    44  *  <p><b>This is NOT part of any supported API.
    45  *  If you write code that depends on this, you do so at your own risk.
    46  *  This code and its internal interfaces are subject to change or
    47  *  deletion without notice.</b>
    48  *
    49  * @author Scott Seligman
    50  * @since 1.5
    51  */
    52 public class TypeVariableImpl extends AbstractTypeImpl implements TypeVariable {
    54     TypeVariableImpl(DocEnv env, TypeVar type) {
    55         super(env, type);
    56     }
    58     /**
    59      * Return the bounds of this type variable.
    60      */
    61     public com.sun.javadoc.Type[] bounds() {
    62         return TypeMaker.getTypes(env, getBounds((TypeVar)type, env));
    63     }
    65     /**
    66      * Return the class, interface, method, or constructor within
    67      * which this type variable is declared.
    68      */
    69     public ProgramElementDoc owner() {
    70         Symbol osym = type.tsym.owner;
    71         if ((osym.kind & Kinds.TYP) != 0) {
    72             return env.getClassDoc((ClassSymbol)osym);
    73         }
    74         Names names = osym.name.table.names;
    75         if (osym.name == names.init) {
    76             return env.getConstructorDoc((MethodSymbol)osym);
    77         } else {
    78             return env.getMethodDoc((MethodSymbol)osym);
    79         }
    80     }
    82     /**
    83      * Return the ClassDoc of the erasure of this type variable.
    84      */
    85     @Override
    86     public ClassDoc asClassDoc() {
    87         return env.getClassDoc((ClassSymbol)env.types.erasure(type).tsym);
    88     }
    90     @Override
    91     public TypeVariable asTypeVariable() {
    92         return this;
    93     }
    95     @Override
    96     public String toString() {
    97         return typeVarToString(env, (TypeVar)type, true);
    98     }
   101     /**
   102      * Return the string form of a type variable along with any
   103      * "extends" clause.  Class names are qualified if "full" is true.
   104      */
   105     static String typeVarToString(DocEnv env, TypeVar v, boolean full) {
   106         StringBuilder s = new StringBuilder(v.toString());
   107         List<Type> bounds = getBounds(v, env);
   108         if (bounds.nonEmpty()) {
   109             boolean first = true;
   110             for (Type b : bounds) {
   111                 s.append(first ? " extends " : " & ");
   112                 s.append(TypeMaker.getTypeString(env, b, full));
   113                 first = false;
   114             }
   115         }
   116         return s.toString();
   117     }
   119     /**
   120      * Get the bounds of a type variable as listed in the "extends" clause.
   121      */
   122     private static List<Type> getBounds(TypeVar v, DocEnv env) {
   123         Name boundname = v.getUpperBound().tsym.getQualifiedName();
   124         if (boundname == boundname.table.names.java_lang_Object) {
   125             return List.nil();
   126         } else {
   127             return env.types.getBounds(v);
   128         }
   129     }
   130 }

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