1 /*
   2  * Copyright (c) 2010, 2013, 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  */
  25 
  26 package jdk.nashorn.internal.tools.nasgen;
  27 
  28 import java.util.Collections;
  29 import java.util.HashMap;
  30 import java.util.LinkedList;
  31 import java.util.List;
  32 import java.util.Map;
  33 import jdk.internal.org.objectweb.asm.Type;
  34 import jdk.nashorn.internal.objects.annotations.Constructor;
  35 import jdk.nashorn.internal.objects.annotations.Function;
  36 import jdk.nashorn.internal.objects.annotations.Getter;
  37 import jdk.nashorn.internal.objects.annotations.Property;
  38 import jdk.nashorn.internal.objects.annotations.ScriptClass;
  39 import jdk.nashorn.internal.objects.annotations.Setter;
  40 import jdk.nashorn.internal.objects.annotations.SpecializedFunction;
  41 import jdk.nashorn.internal.objects.annotations.SpecializedFunction.LinkLogic;
  42 import jdk.nashorn.internal.objects.annotations.Where;
  43 import jdk.nashorn.internal.tools.nasgen.MemberInfo.Kind;
  44 
  45 /**
  46  * All annotation information from a class that is annotated with
  47  * the annotation com.sun.oracle.objects.annotations.ScriptClass.
  48  *
  49  */
  50 public final class ScriptClassInfo {
  51     // descriptots for various annotations
  52     static final String SCRIPT_CLASS_ANNO_DESC  = Type.getDescriptor(ScriptClass.class);
  53     static final String CONSTRUCTOR_ANNO_DESC   = Type.getDescriptor(Constructor.class);
  54     static final String FUNCTION_ANNO_DESC      = Type.getDescriptor(Function.class);
  55     static final String GETTER_ANNO_DESC        = Type.getDescriptor(Getter.class);
  56     static final String SETTER_ANNO_DESC        = Type.getDescriptor(Setter.class);
  57     static final String PROPERTY_ANNO_DESC      = Type.getDescriptor(Property.class);
  58     static final String WHERE_ENUM_DESC         = Type.getDescriptor(Where.class);
  59     static final String LINK_LOGIC_DESC         = Type.getDescriptor(LinkLogic.class);
  60     static final String SPECIALIZED_FUNCTION    = Type.getDescriptor(SpecializedFunction.class);
  61 
  62     static final Map<String, Kind> annotations = new HashMap<>();
  63 
  64     static {
  65         annotations.put(SCRIPT_CLASS_ANNO_DESC, Kind.SCRIPT_CLASS);
  66         annotations.put(FUNCTION_ANNO_DESC, Kind.FUNCTION);
  67         annotations.put(CONSTRUCTOR_ANNO_DESC, Kind.CONSTRUCTOR);
  68         annotations.put(GETTER_ANNO_DESC, Kind.GETTER);
  69         annotations.put(SETTER_ANNO_DESC, Kind.SETTER);
  70         annotations.put(PROPERTY_ANNO_DESC, Kind.PROPERTY);
  71         annotations.put(SPECIALIZED_FUNCTION, Kind.SPECIALIZED_FUNCTION);
  72     }
  73 
  74     // name of the script class
  75     private String name;
  76     // member info for script properties
  77     private List<MemberInfo> members = Collections.emptyList();
  78     // java class name that is annotated with @ScriptClass
  79     private String javaName;
  80 
  81     /**
  82      * @return the name
  83      */
  84     public String getName() {
  85         return name;
  86     }
  87 
  88     /**
  89      * @param name the name to set
  90      */
  91     public void setName(final String name) {
  92         this.name = name;
  93     }
  94 
  95     /**
  96      * @return the members
  97      */
  98     public List<MemberInfo> getMembers() {
  99         return Collections.unmodifiableList(members);
 100     }
 101 
 102     /**
 103      * @param members the members to set
 104      */
 105     public void setMembers(final List<MemberInfo> members) {
 106         this.members = members;
 107     }
 108 
 109     MemberInfo getConstructor() {
 110         for (final MemberInfo memInfo : members) {
 111             if (memInfo.getKind() == Kind.CONSTRUCTOR) {
 112                 return memInfo;
 113             }
 114         }
 115         return null;
 116     }
 117 
 118     List<MemberInfo> getSpecializedConstructors() {
 119         final List<MemberInfo> res = new LinkedList<>();
 120         for (final MemberInfo memInfo : members) {
 121             if (memInfo.isSpecializedConstructor()) {
 122                 assert memInfo.getKind() == Kind.SPECIALIZED_FUNCTION;
 123                 res.add(memInfo);
 124             }
 125         }
 126         return Collections.unmodifiableList(res);
 127     }
 128 
























 129     int getPrototypeMemberCount() {
 130         int count = 0;
 131         for (final MemberInfo memInfo : members) {
 132             if (memInfo.getWhere() == Where.PROTOTYPE || memInfo.isConstructor()) {








 133                 count++;
 134             }
 135         }
 136         return count;
 137     }
 138 
 139     int getConstructorMemberCount() {
 140         int count = 0;
 141         for (final MemberInfo memInfo : members) {










 142             if (memInfo.getWhere() == Where.CONSTRUCTOR) {
 143                 count++;
 144             }
 145         }
 146         return count;
 147     }
 148 
 149     int getInstancePropertyCount() {
 150         int count = 0;
 151         for (final MemberInfo memInfo : members) {








 152             if (memInfo.getWhere() == Where.INSTANCE) {
 153                 count++;
 154             }
 155         }
 156         return count;
 157     }
 158 
 159     MemberInfo find(final String findJavaName, final String findJavaDesc, final int findAccess) {
 160         for (final MemberInfo memInfo : members) {
 161             if (memInfo.getJavaName().equals(findJavaName) &&
 162                 memInfo.getJavaDesc().equals(findJavaDesc) &&
 163                 memInfo.getJavaAccess() == findAccess) {
 164                 return memInfo;
 165             }
 166         }
 167         return null;
 168     }
 169 
 170     List<MemberInfo> findSpecializations(final String methodName) {
 171         final List<MemberInfo> res = new LinkedList<>();
 172         for (final MemberInfo memInfo : members) {
 173             if (memInfo.getName().equals(methodName) &&
 174                 memInfo.getKind() == Kind.SPECIALIZED_FUNCTION) {
 175                 res.add(memInfo);
 176             }
 177         }
 178         return Collections.unmodifiableList(res);
 179     }
 180 
 181     MemberInfo findSetter(final MemberInfo getter) {
 182         assert getter.getKind() == Kind.GETTER : "getter expected";
 183         final String getterName = getter.getName();
 184         final Where getterWhere = getter.getWhere();
 185         for (final MemberInfo memInfo : members) {
 186             if (memInfo.getKind() == Kind.SETTER &&
 187                 getterName.equals(memInfo.getName()) &&
 188                 getterWhere == memInfo.getWhere()) {
 189                 return memInfo;
 190             }
 191         }
 192         return null;
 193     }
 194 
 195     /**
 196      * @return the javaName
 197      */
 198     public String getJavaName() {
 199         return javaName;
 200     }
 201 
 202     /**
 203      * @param javaName the javaName to set
 204      */
 205     void setJavaName(final String javaName) {
 206         this.javaName = javaName;
 207     }
 208 
 209     String getConstructorClassName() {
 210         return getJavaName() + StringConstants.CONSTRUCTOR_SUFFIX;
 211     }
 212 
 213     String getPrototypeClassName() {
 214         return getJavaName() + StringConstants.PROTOTYPE_SUFFIX;
 215     }
 216 
 217     void verify() {
 218         boolean constructorSeen = false;
 219         for (final MemberInfo memInfo : getMembers()) {
 220             if (memInfo.isConstructor()) {
 221                 if (constructorSeen) {
 222                     error("more than @Constructor method");
 223                 }
 224                 constructorSeen = true;
 225             }
 226             try {
 227                 memInfo.verify();
 228             } catch (final Exception e) {
 229                 error(e.getMessage());
 230             }
 231         }
 232     }
 233 
 234     private void error(final String msg) throws RuntimeException {
 235         throw new RuntimeException(javaName + " : " + msg);
 236     }
 237 }
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