jdk8-mips64-public/langtools: src/share/classes/com/sun/tools/javac/code/Printer.java@bf54daa9dcd8 (annotated)

src/share/classes/com/sun/tools/javac/code/Printer.java@bf54daa9dcd8 (annotated)

src/share/classes/com/sun/tools/javac/code/Printer.java

Thu, 01 Nov 2012 10:48:36 +0100

author: ohrstrom
date: Thu, 01 Nov 2012 10:48:36 +0100
changeset 1384: bf54daa9dcd8
parent 1374: c002fdee76fd
child 1521: 71f35e4b93a5
permissions: -rw-r--r--

7153951: Add new lint option -Xlint:auxiliaryclass
Reviewed-by: jjg, mcimadamore, forax

 /*
  * Copyright (c) 2009, 2012, 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.javac.code;
 import java.util.Locale;
 import com.sun.tools.javac.api.Messages;
 import com.sun.tools.javac.code.Symbol.*;
 import com.sun.tools.javac.code.Type.*;
 import com.sun.tools.javac.util.List;
 import com.sun.tools.javac.util.ListBuffer;
 import static com.sun.tools.javac.code.BoundKind.*;
 import static com.sun.tools.javac.code.Flags.*;
 import static com.sun.tools.javac.code.TypeTag.ARRAY;
 import static com.sun.tools.javac.code.TypeTag.CLASS;
 import static com.sun.tools.javac.code.TypeTag.FORALL;
 /**
  * A combined type/symbol visitor for generating non-trivial localized string
  * representation of types and symbols.
  *
  * <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>
  */
 public abstract class Printer implements Type.Visitor<String, Locale>, Symbol.Visitor<String, Locale> {
     List<Type> seenCaptured = List.nil();
     static final int PRIME = 997;  // largest prime less than 1000
     protected Printer() { }
     /**
      * This method should be overriden in order to provide proper i18n support.
      *
      * @param locale the locale in which the string is to be rendered
      * @param key the key corresponding to the message to be displayed
      * @param args a list of optional arguments
      * @return localized string representation
      */
     protected abstract String localize(Locale locale, String key, Object... args);
     /**
      * Maps a captured type into an unique identifier.
      *
      * @param t the captured type for which an id is to be retrieved
      * @param locale locale settings
      * @return unique id representing this captured type
      */
     protected abstract String capturedVarId(CapturedType t, Locale locale);
     /**
      * Create a printer with default i18n support provided by Messages. By default,
      * captured types ids are generated using hashcode.
      *
      * @param messages Messages class to be used for i18n
      * @return printer visitor instance
      */
     public static Printer createStandardPrinter(final Messages messages) {
         return new Printer() {
             @Override
             protected String localize(Locale locale, String key, Object... args) {
                 return messages.getLocalizedString(locale, key, args);
             }
             @Override
             protected String capturedVarId(CapturedType t, Locale locale) {
                 return (t.hashCode() & 0xFFFFFFFFL) % PRIME + "";
         }};
     }
     /**
      * Get a localized string representation for all the types in the input list.
      *
      * @param ts types to be displayed
      * @param locale the locale in which the string is to be rendered
      * @return localized string representation
      */
     public String visitTypes(List<Type> ts, Locale locale) {
         ListBuffer<String> sbuf = ListBuffer.lb();
         for (Type t : ts) {
             sbuf.append(visit(t, locale));
         }
         return sbuf.toList().toString();
     }
     /**
      * * Get a localized string representation for all the symbols in the input list.
      *
      * @param ts symbols to be displayed
      * @param locale the locale in which the string is to be rendered
      * @return localized string representation
      */
     public String visitSymbols(List<Symbol> ts, Locale locale) {
         ListBuffer<String> sbuf = ListBuffer.lb();
         for (Symbol t : ts) {
             sbuf.append(visit(t, locale));
         }
         return sbuf.toList().toString();
     }
     /**
      * Get a localized string represenation for a given type.
      *
      * @param t type to be displayed
      * @param locale the locale in which the string is to be rendered
      * @return localized string representation
      */
     public String visit(Type t, Locale locale) {
         return t.accept(this, locale);
     }
     /**
      * Get a localized string represenation for a given symbol.
      *
      * @param s symbol to be displayed
      * @param locale the locale in which the string is to be rendered
      * @return localized string representation
      */
     public String visit(Symbol s, Locale locale) {
         return s.accept(this, locale);
     }
     @Override
     public String visitCapturedType(CapturedType t, Locale locale) {
         if (seenCaptured.contains(t))
             return localize(locale, "compiler.misc.type.captureof.1",
                 capturedVarId(t, locale));
         else {
             try {
                 seenCaptured = seenCaptured.prepend(t);
                 return localize(locale, "compiler.misc.type.captureof",
                     capturedVarId(t, locale),
                     visit(t.wildcard, locale));
             }
             finally {
                 seenCaptured = seenCaptured.tail;
             }
         }
     }
     @Override
     public String visitForAll(ForAll t, Locale locale) {
         return "<" + visitTypes(t.tvars, locale) + ">" + visit(t.qtype, locale);
     }
     @Override
     public String visitUndetVar(UndetVar t, Locale locale) {
         if (t.inst != null) {
             return visit(t.inst, locale);
         } else {
             return visit(t.qtype, locale) + "?";
         }
     }
     @Override
     public String visitArrayType(ArrayType t, Locale locale) {
         return visit(t.elemtype, locale) + "[]";
     }
     @Override
     public String visitClassType(ClassType t, Locale locale) {
         StringBuilder buf = new StringBuilder();
         if (t.getEnclosingType().tag == CLASS && t.tsym.owner.kind == Kinds.TYP) {
             buf.append(visit(t.getEnclosingType(), locale));
             buf.append(".");
             buf.append(className(t, false, locale));
         } else {
             buf.append(className(t, true, locale));
         }
         if (t.getTypeArguments().nonEmpty()) {
             buf.append('<');
             buf.append(visitTypes(t.getTypeArguments(), locale));
             buf.append(">");
         }
         return buf.toString();
     }
     @Override
     public String visitMethodType(MethodType t, Locale locale) {
         return "(" + printMethodArgs(t.argtypes, false, locale) + ")" + visit(t.restype, locale);
     }
     @Override
     public String visitPackageType(PackageType t, Locale locale) {
         return t.tsym.getQualifiedName().toString();
     }
     @Override
     public String visitWildcardType(WildcardType t, Locale locale) {
         StringBuilder s = new StringBuilder();
         s.append(t.kind);
         if (t.kind != UNBOUND) {
             s.append(visit(t.type, locale));
         }
         return s.toString();
     }
     @Override
     public String visitErrorType(ErrorType t, Locale locale) {
         return visitType(t, locale);
     }
     @Override
     public String visitTypeVar(TypeVar t, Locale locale) {
         return visitType(t, locale);
     }
     public String visitType(Type t, Locale locale) {
         String s = (t.tsym == null || t.tsym.name == null)
                 ? localize(locale, "compiler.misc.type.none")
                 : t.tsym.name.toString();
         return s;
     }
     /**
      * Converts a class name into a (possibly localized) string. Anonymous
      * inner classes gets converted into a localized string.
      *
      * @param t the type of the class whose name is to be rendered
      * @param longform if set, the class' fullname is displayed - if unset the
      * short name is chosen (w/o package)
      * @param locale the locale in which the string is to be rendered
      * @return localized string representation
      */
     protected String className(ClassType t, boolean longform, Locale locale) {
         Symbol sym = t.tsym;
         if (sym.name.length() == 0 && (sym.flags() & COMPOUND) != 0) {
             StringBuilder s = new StringBuilder(visit(t.supertype_field, locale));
             for (List<Type> is = t.interfaces_field; is.nonEmpty(); is = is.tail) {
                 s.append("&");
                 s.append(visit(is.head, locale));
             }
             return s.toString();
         } else if (sym.name.length() == 0) {
             String s;
             ClassType norm = (ClassType) t.tsym.type;
             if (norm == null) {
                 s = localize(locale, "compiler.misc.anonymous.class", (Object) null);
             } else if (norm.interfaces_field != null && norm.interfaces_field.nonEmpty()) {
                 s = localize(locale, "compiler.misc.anonymous.class",
                         visit(norm.interfaces_field.head, locale));
             } else {
                 s = localize(locale, "compiler.misc.anonymous.class",
                         visit(norm.supertype_field, locale));
             }
             return s;
         } else if (longform) {
             return sym.getQualifiedName().toString();
         } else {
             return sym.name.toString();
         }
     }
     /**
      * Converts a set of method argument types into their corresponding
      * localized string representation.
      *
      * @param args arguments to be rendered
      * @param varArgs if true, the last method argument is regarded as a vararg
      * @param locale the locale in which the string is to be rendered
      * @return localized string representation
      */
     protected String printMethodArgs(List<Type> args, boolean varArgs, Locale locale) {
         if (!varArgs) {
             return visitTypes(args, locale);
         } else {
             StringBuilder buf = new StringBuilder();
             while (args.tail.nonEmpty()) {
                 buf.append(visit(args.head, locale));
                 args = args.tail;
                 buf.append(',');
             }
             if (args.head.tag == ARRAY) {
                 buf.append(visit(((ArrayType) args.head).elemtype, locale));
                 buf.append("...");
             } else {
                 buf.append(visit(args.head, locale));
             }
             return buf.toString();
         }
     }
     @Override
     public String visitClassSymbol(ClassSymbol sym, Locale locale) {
         return sym.name.isEmpty()
                 ? localize(locale, "compiler.misc.anonymous.class", sym.flatname)
                 : sym.fullname.toString();
     }
     @Override
     public String visitMethodSymbol(MethodSymbol s, Locale locale) {
         if (s.isStaticOrInstanceInit()) {
             return s.owner.name.toString();
         } else {
             String ms = (s.name == s.name.table.names.init)
                     ? s.owner.name.toString()
                     : s.name.toString();
             if (s.type != null) {
                 if (s.type.tag == FORALL) {
                     ms = "<" + visitTypes(s.type.getTypeArguments(), locale) + ">" + ms;
                 }
                 ms += "(" + printMethodArgs(
                         s.type.getParameterTypes(),
                         (s.flags() & VARARGS) != 0,
                         locale) + ")";
             }
             return ms;
         }
     }
     @Override
     public String visitOperatorSymbol(OperatorSymbol s, Locale locale) {
         return visitMethodSymbol(s, locale);
     }
     @Override
     public String visitPackageSymbol(PackageSymbol s, Locale locale) {
         return s.isUnnamed()
                 ? localize(locale, "compiler.misc.unnamed.package")
                 : s.fullname.toString();
     }
     @Override
     public String visitTypeSymbol(TypeSymbol s, Locale locale) {
         return visitSymbol(s, locale);
     }
     @Override
     public String visitVarSymbol(VarSymbol s, Locale locale) {
         return visitSymbol(s, locale);
     }
     @Override
     public String visitSymbol(Symbol s, Locale locale) {
         return s.name.toString();
     }
 }

Mercurial > jdk8-mips64-public > langtools / annotate

src/share/classes/com/sun/tools/javac/code/Printer.java@bf54daa9dcd8 (annotated)

src/share/classes/com/sun/tools/javac/code/Printer.java