jdk8-mips64-public/langtools: comparison src/share/classes/com/sun/tools/javac/code/Printer.java

-:9711a6c2db7e
+:86b60aa941c6
+/*
+* Copyright 2009 Sun Microsystems, Inc.  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.  Sun designates this
+* particular file as subject to the "Classpath" exception as provided
+* by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+* CA 95054 USA or visit www.sun.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.Type.*;
+import com.sun.tools.javac.code.Symbol.*;
+import com.sun.tools.javac.util.List;
+import com.sun.tools.javac.util.ListBuffer;
+import static com.sun.tools.javac.code.TypeTags.*;
+import static com.sun.tools.javac.code.BoundKind.*;
+import static com.sun.tools.javac.code.Flags.*;
+/**
+* A combined type/symbol visitor for generating non-trivial localized string
+* representation of types and symbols.
+*/
+public abstract class Printer implements Type.Visitor<String, Locale>, Symbol.Visitor<String, Locale> {
+/**
+* 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);
+/**
+* Create a printer with default i18n support provided my Messages.
+* @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);
+}};
+}
+/**
+* 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 represenation 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 ts 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 ts 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) {
+return localize(locale, "compiler.misc.type.captureof",
+(t.hashCode() & 0xFFFFFFFFL) % Type.CapturedType.PRIME,
+visit(t.wildcard, locale));
+}
+@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) {
+StringBuffer buf = new StringBuffer();
+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) {
+StringBuffer s = new StringBuffer();
+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) {
+StringBuffer s = new StringBuffer(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.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 {
+StringBuffer buf = new StringBuffer();
+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.flags() & BLOCK) != 0) {
+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 / file comparison

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

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