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

Sat, 01 Dec 2007 00:00:00 +0000

author
duke
date
Sat, 01 Dec 2007 00:00:00 +0000
changeset 1
9a66ca7c79fa
child 113
eff38cc97183
permissions
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duke@1 1 /*
duke@1 2 * Copyright 2003-2005 Sun Microsystems, Inc. All Rights Reserved.
duke@1 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@1 4 *
duke@1 5 * This code is free software; you can redistribute it and/or modify it
duke@1 6 * under the terms of the GNU General Public License version 2 only, as
duke@1 7 * published by the Free Software Foundation. Sun designates this
duke@1 8 * particular file as subject to the "Classpath" exception as provided
duke@1 9 * by Sun in the LICENSE file that accompanied this code.
duke@1 10 *
duke@1 11 * This code is distributed in the hope that it will be useful, but WITHOUT
duke@1 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@1 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@1 14 * version 2 for more details (a copy is included in the LICENSE file that
duke@1 15 * accompanied this code).
duke@1 16 *
duke@1 17 * You should have received a copy of the GNU General Public License version
duke@1 18 * 2 along with this work; if not, write to the Free Software Foundation,
duke@1 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@1 20 *
duke@1 21 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
duke@1 22 * CA 95054 USA or visit www.sun.com if you need additional information or
duke@1 23 * have any questions.
duke@1 24 */
duke@1 25
duke@1 26 package com.sun.tools.javadoc;
duke@1 27
duke@1 28
duke@1 29 import com.sun.javadoc.*;
duke@1 30
duke@1 31 import com.sun.tools.javac.code.Kinds;
duke@1 32 import com.sun.tools.javac.code.Symbol;
duke@1 33 import com.sun.tools.javac.code.Symbol.ClassSymbol;
duke@1 34 import com.sun.tools.javac.code.Symbol.MethodSymbol;
duke@1 35 import com.sun.tools.javac.code.Type;
duke@1 36 import com.sun.tools.javac.code.Type.TypeVar;
duke@1 37 import com.sun.tools.javac.util.List;
duke@1 38 import com.sun.tools.javac.util.Name;
duke@1 39
duke@1 40 /**
duke@1 41 * Implementation of <code>TypeVariable</code>, which
duke@1 42 * represents a type variable.
duke@1 43 *
duke@1 44 * @author Scott Seligman
duke@1 45 * @since 1.5
duke@1 46 */
duke@1 47 public class TypeVariableImpl extends AbstractTypeImpl implements TypeVariable {
duke@1 48
duke@1 49 TypeVariableImpl(DocEnv env, TypeVar type) {
duke@1 50 super(env, type);
duke@1 51 }
duke@1 52
duke@1 53 /**
duke@1 54 * Return the bounds of this type variable.
duke@1 55 */
duke@1 56 public com.sun.javadoc.Type[] bounds() {
duke@1 57 return TypeMaker.getTypes(env, getBounds((TypeVar)type, env));
duke@1 58 }
duke@1 59
duke@1 60 /**
duke@1 61 * Return the class, interface, method, or constructor within
duke@1 62 * which this type variable is declared.
duke@1 63 */
duke@1 64 public ProgramElementDoc owner() {
duke@1 65 Symbol osym = type.tsym.owner;
duke@1 66 if ((osym.kind & Kinds.TYP) != 0) {
duke@1 67 return env.getClassDoc((ClassSymbol)osym);
duke@1 68 }
duke@1 69 Name.Table names = osym.name.table;
duke@1 70 if (osym.name == names.init) {
duke@1 71 return env.getConstructorDoc((MethodSymbol)osym);
duke@1 72 } else {
duke@1 73 return env.getMethodDoc((MethodSymbol)osym);
duke@1 74 }
duke@1 75 }
duke@1 76
duke@1 77 /**
duke@1 78 * Return the ClassDoc of the erasure of this type variable.
duke@1 79 */
duke@1 80 public ClassDoc asClassDoc() {
duke@1 81 return env.getClassDoc((ClassSymbol)env.types.erasure(type).tsym);
duke@1 82 }
duke@1 83
duke@1 84 public TypeVariable asTypeVariable() {
duke@1 85 return this;
duke@1 86 }
duke@1 87
duke@1 88 public String toString() {
duke@1 89 return typeVarToString(env, (TypeVar)type, true);
duke@1 90 }
duke@1 91
duke@1 92
duke@1 93 /**
duke@1 94 * Return the string form of a type variable along with any
duke@1 95 * "extends" clause. Class names are qualified if "full" is true.
duke@1 96 */
duke@1 97 static String typeVarToString(DocEnv env, TypeVar v, boolean full) {
duke@1 98 StringBuffer s = new StringBuffer(v.toString());
duke@1 99 List<Type> bounds = getBounds(v, env);
duke@1 100 if (bounds.nonEmpty()) {
duke@1 101 boolean first = true;
duke@1 102 for (Type b : bounds) {
duke@1 103 s.append(first ? " extends " : " & ");
duke@1 104 s.append(TypeMaker.getTypeString(env, b, full));
duke@1 105 first = false;
duke@1 106 }
duke@1 107 }
duke@1 108 return s.toString();
duke@1 109 }
duke@1 110
duke@1 111 /**
duke@1 112 * Get the bounds of a type variable as listed in the "extends" clause.
duke@1 113 */
duke@1 114 private static List<Type> getBounds(TypeVar v, DocEnv env) {
duke@1 115 Name boundname = v.getUpperBound().tsym.getQualifiedName();
duke@1 116 if (boundname == boundname.table.java_lang_Object) {
duke@1 117 return List.nil();
duke@1 118 } else {
duke@1 119 return env.types.getBounds(v);
duke@1 120 }
duke@1 121 }
duke@1 122 }

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