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

changeset 288
d402db1005ad
parent 238
86b60aa941c6
child 333
7c2d6da61646
equal deleted inserted replaced
287:44eaac2b4501 288:d402db1005ad
41 * A combined type/symbol visitor for generating non-trivial localized string 41 * A combined type/symbol visitor for generating non-trivial localized string
42 * representation of types and symbols. 42 * representation of types and symbols.
43 */ 43 */
44 public abstract class Printer implements Type.Visitor<String, Locale>, Symbol.Visitor<String, Locale> { 44 public abstract class Printer implements Type.Visitor<String, Locale>, Symbol.Visitor<String, Locale> {
45 45
46 List<Type> seenCaptured = List.nil();
47 static final int PRIME = 997; // largest prime less than 1000
48
46 /** 49 /**
47 * This method should be overriden in order to provide proper i18n support. 50 * This method should be overriden in order to provide proper i18n support.
48 * 51 *
49 * @param locale the locale in which the string is to be rendered 52 * @param locale the locale in which the string is to be rendered
50 * @param key the key corresponding to the message to be displayed 53 * @param key the key corresponding to the message to be displayed
52 * @return localized string representation 55 * @return localized string representation
53 */ 56 */
54 protected abstract String localize(Locale locale, String key, Object... args); 57 protected abstract String localize(Locale locale, String key, Object... args);
55 58
56 /** 59 /**
57 * Create a printer with default i18n support provided my Messages. 60 * Maps a captured type into an unique identifier.
61 *
62 * @param t the captured type for which an id is to be retrieved
63 * @param locale locale settings
64 * @return unique id representing this captured type
65 */
66 protected abstract String capturedVarId(CapturedType t, Locale locale);
67
68 /**
69 * Create a printer with default i18n support provided by Messages. By default,
70 * captured types ids are generated using hashcode.
71 *
58 * @param messages Messages class to be used for i18n 72 * @param messages Messages class to be used for i18n
59 * @return printer visitor instance 73 * @return printer visitor instance
60 */ 74 */
61 public static Printer createStandardPrinter(final Messages messages) { 75 public static Printer createStandardPrinter(final Messages messages) {
62 return new Printer() { 76 return new Printer() {
63 @Override 77 @Override
64 protected String localize(Locale locale, String key, Object... args) { 78 protected String localize(Locale locale, String key, Object... args) {
65 return messages.getLocalizedString(locale, key, args); 79 return messages.getLocalizedString(locale, key, args);
80 }
81
82 @Override
83 protected String capturedVarId(CapturedType t, Locale locale) {
84 return (t.hashCode() & 0xFFFFFFFFL) % PRIME + "";
66 }}; 85 }};
67 } 86 }
68 87
69 /** 88 /**
70 * Get a localized string representation for all the types in the input list. 89 * Get a localized string representation for all the types in the input list.
118 return s.accept(this, locale); 137 return s.accept(this, locale);
119 } 138 }
120 139
121 @Override 140 @Override
122 public String visitCapturedType(CapturedType t, Locale locale) { 141 public String visitCapturedType(CapturedType t, Locale locale) {
123 return localize(locale, "compiler.misc.type.captureof", 142 if (seenCaptured.contains(t))
124 (t.hashCode() & 0xFFFFFFFFL) % Type.CapturedType.PRIME, 143 return localize(locale, "compiler.misc.type.captureof.1",
125 visit(t.wildcard, locale)); 144 capturedVarId(t, locale));
145 else {
146 try {
147 seenCaptured = seenCaptured.prepend(t);
148 return localize(locale, "compiler.misc.type.captureof",
149 capturedVarId(t, locale),
150 visit(t.wildcard, locale));
151 }
152 finally {
153 seenCaptured = seenCaptured.tail;
154 }
155 }
126 } 156 }
127 157
128 @Override 158 @Override
129 public String visitForAll(ForAll t, Locale locale) { 159 public String visitForAll(ForAll t, Locale locale) {
130 return "<" + visitTypes(t.tvars, locale) + ">" + visit(t.qtype, locale); 160 return "<" + visitTypes(t.tvars, locale) + ">" + visit(t.qtype, locale);

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