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

Fri, 16 Sep 2011 16:18:46 -0700

author
jjg
date
Fri, 16 Sep 2011 16:18:46 -0700
changeset 1094
dea82aa3ca4f
parent 910
ebf7c13df6c0
child 1359
25e14ad23cef
permissions
-rw-r--r--

7091528: javadoc attempts to parse .class files
Reviewed-by: darcy

     1 /*
     2  * Copyright (c) 1997, 2011, 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 java.lang.reflect.Modifier;
    29 import java.text.CollationKey;
    31 import com.sun.javadoc.*;
    33 import com.sun.tools.javac.code.Flags;
    34 import com.sun.tools.javac.code.Symbol.*;
    35 import com.sun.tools.javac.code.Type;
    36 import com.sun.tools.javac.tree.JCTree.JCMethodDecl;
    37 import com.sun.tools.javac.util.List;
    38 import com.sun.tools.javac.util.ListBuffer;
    39 import com.sun.tools.javac.util.Position;
    41 /**
    42  * Represents a method or constructor of a java class.
    43  *
    44  * @since 1.2
    45  * @author Robert Field
    46  * @author Neal Gafter (rewrite)
    47  * @author Scott Seligman (generics, annotations)
    48  */
    50 public abstract class ExecutableMemberDocImpl
    51         extends MemberDocImpl implements ExecutableMemberDoc {
    53     protected final MethodSymbol sym;
    55     /**
    56      * Constructor.
    57      */
    58     public ExecutableMemberDocImpl(DocEnv env, MethodSymbol sym,
    59                                    String rawDocs, JCMethodDecl tree, Position.LineMap lineMap) {
    60         super(env, sym, rawDocs, tree, lineMap);
    61         this.sym = sym;
    62     }
    64     /**
    65      * Constructor.
    66      */
    67     public ExecutableMemberDocImpl(DocEnv env, MethodSymbol sym) {
    68         this(env, sym, null, null, null);
    69     }
    71     /**
    72      * Returns the flags in terms of javac's flags
    73      */
    74     protected long getFlags() {
    75         return sym.flags();
    76     }
    78     /**
    79      * Identify the containing class
    80      */
    81     protected ClassSymbol getContainingClass() {
    82         return sym.enclClass();
    83     }
    85     /**
    86      * Return true if this method is native
    87      */
    88     public boolean isNative() {
    89         return Modifier.isNative(getModifiers());
    90     }
    92     /**
    93      * Return true if this method is synchronized
    94      */
    95     public boolean isSynchronized() {
    96         return Modifier.isSynchronized(getModifiers());
    97     }
    99     /**
   100      * Return true if this method was declared to take a variable number
   101      * of arguments.
   102      */
   103     public boolean isVarArgs() {
   104         return ((sym.flags() & Flags.VARARGS) != 0
   105                 && !env.legacyDoclet);
   106     }
   108     /**
   109      * Returns true if this field was synthesized by the compiler.
   110      */
   111     public boolean isSynthetic() {
   112         return ((sym.flags() & Flags.SYNTHETIC) != 0);
   113     }
   115     public boolean isIncluded() {
   116         return containingClass().isIncluded() && env.shouldDocument(sym);
   117     }
   119     /**
   120      * Return the throws tags in this method.
   121      *
   122      * @return an array of ThrowTagImpl containing all {@code @exception}
   123      * and {@code @throws} tags.
   124      */
   125     public ThrowsTag[] throwsTags() {
   126         return comment().throwsTags();
   127     }
   129     /**
   130      * Return the param tags in this method, excluding the type
   131      * parameter tags.
   132      *
   133      * @return an array of ParamTagImpl containing all {@code @param} tags.
   134      */
   135     public ParamTag[] paramTags() {
   136         return comment().paramTags();
   137     }
   139     /**
   140      * Return the type parameter tags in this method.
   141      */
   142     public ParamTag[] typeParamTags() {
   143         return env.legacyDoclet
   144             ? new ParamTag[0]
   145             : comment().typeParamTags();
   146     }
   148     /**
   149      * Return exceptions this method or constructor throws.
   150      *
   151      * @return an array of ClassDoc[] representing the exceptions
   152      * thrown by this method.
   153      */
   154     public ClassDoc[] thrownExceptions() {
   155         ListBuffer<ClassDocImpl> l = new ListBuffer<ClassDocImpl>();
   156         for (Type ex : sym.type.getThrownTypes()) {
   157             ex = env.types.erasure(ex);
   158             //### Will these casts succeed in the face of static semantic
   159             //### errors in the documented code?
   160             ClassDocImpl cdi = env.getClassDoc((ClassSymbol)ex.tsym);
   161             if (cdi != null) l.append(cdi);
   162         }
   163         return l.toArray(new ClassDocImpl[l.length()]);
   164     }
   166     /**
   167      * Return exceptions this method or constructor throws.
   168      * Each array element is either a <code>ClassDoc</code> or a
   169      * <code>TypeVariable</code>.
   170      */
   171     public com.sun.javadoc.Type[] thrownExceptionTypes() {
   172         return TypeMaker.getTypes(env, sym.type.getThrownTypes());
   173     }
   175     /**
   176      * Get argument information.
   177      *
   178      * @see ParameterImpl
   179      *
   180      * @return an array of ParameterImpl, one element per argument
   181      * in the order the arguments are present.
   182      */
   183     public Parameter[] parameters() {
   184         // generate the parameters on the fly:  they're not cached
   185         List<VarSymbol> params = sym.params();
   186         Parameter result[] = new Parameter[params.length()];
   188         int i = 0;
   189         for (VarSymbol param : params) {
   190             result[i++] = new ParameterImpl(env, param);
   191         }
   192         return result;
   193     }
   195     /**
   196      * Return the formal type parameters of this method or constructor.
   197      * Return an empty array if there are none.
   198      */
   199     public TypeVariable[] typeParameters() {
   200         if (env.legacyDoclet) {
   201             return new TypeVariable[0];
   202         }
   203         TypeVariable res[] = new TypeVariable[sym.type.getTypeArguments().length()];
   204         TypeMaker.getTypes(env, sym.type.getTypeArguments(), res);
   205         return res;
   206     }
   208     /**
   209      * Get the signature. It is the parameter list, type is qualified.
   210      * For instance, for a method <code>mymethod(String x, int y)</code>,
   211      * it will return <code>(java.lang.String,int)</code>.
   212      */
   213     public String signature() {
   214         return makeSignature(true);
   215     }
   217     /**
   218      * Get flat signature.  All types are not qualified.
   219      * Return a String, which is the flat signiture of this member.
   220      * It is the parameter list, type is not qualified.
   221      * For instance, for a method <code>mymethod(String x, int y)</code>,
   222      * it will return <code>(String, int)</code>.
   223      */
   224     public String flatSignature() {
   225         return makeSignature(false);
   226     }
   228     private String makeSignature(boolean full) {
   229         StringBuilder result = new StringBuilder();
   230         result.append("(");
   231         for (List<Type> types = sym.type.getParameterTypes(); types.nonEmpty(); ) {
   232             Type t = types.head;
   233             result.append(TypeMaker.getTypeString(env, t, full));
   234             types = types.tail;
   235             if (types.nonEmpty()) {
   236                 result.append(", ");
   237             }
   238         }
   239         if (isVarArgs()) {
   240             int len = result.length();
   241             result.replace(len - 2, len, "...");
   242         }
   243         result.append(")");
   244         return result.toString();
   245     }
   247     protected String typeParametersString() {
   248         return TypeMaker.typeParametersString(env, sym, true);
   249     }
   251     /**
   252      * Generate a key for sorting.
   253      */
   254     @Override
   255     CollationKey generateKey() {
   256         String k = name() + flatSignature() + typeParametersString();
   257         // ',' and '&' are between '$' and 'a':  normalize to spaces.
   258         k = k.replace(',', ' ').replace('&', ' ');
   259         // System.out.println("COLLATION KEY FOR " + this + " is \"" + k + "\"");
   260         return env.doclocale.collator.getCollationKey(k);
   261     }
   263     /**
   264      * Return the source position of the entity, or null if
   265      * no position is available.
   266      */
   267     @Override
   268     public SourcePosition position() {
   269         if (sym.enclClass().sourcefile == null) return null;
   270         return SourcePositionImpl.make(sym.enclClass().sourcefile,
   271                                        (tree==null) ? 0 : tree.pos,
   272                                        lineMap);
   273     }
   274 }

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