1 /*
  2  * Copyright (c) 1999, 2024, 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 com.sun.tools.javac.util;
 27 
 28 /**
 29  * Access to the compiler's name table.  Standard names are defined,
 30  * as well as methods to create new names.
 31  *
 32  *  <p><b>This is NOT part of any supported API.
 33  *  If you write code that depends on this, you do so at your own risk.
 34  *  This code and its internal interfaces are subject to change or
 35  *  deletion without notice.</b>
 36  */
 37 public class Names {
 38 
 39     public static final Context.Key<Names> namesKey = new Context.Key<>();
 40 
 41     public static Names instance(Context context) {
 42         Names instance = context.get(namesKey);
 43         if (instance == null) {
 44             instance = new Names(context);
 45             context.put(namesKey, instance);
 46         }
 47         return instance;
 48     }
 49 
 50     // operators and punctuation
 51     public final Name asterisk;
 52     public final Name comma;
 53     public final Name empty;
 54     public final Name hyphen;
 55     public final Name one;
 56     public final Name slash;
 57 
 58     // keywords
 59     public final Name _class;
 60     public final Name _super;
 61     public final Name _this;
 62     public final Name var;
 63     public final Name exports;
 64     public final Name opens;
 65     public final Name module;
 66     public final Name provides;
 67     public final Name requires;
 68     public final Name to;
 69     public final Name transitive;
 70     public final Name uses;
 71     public final Name open;
 72     public final Name underscore;
 73     public final Name when;
 74     public final Name with;
 75     public final Name yield;
 76 
 77     // field and method names
 78     public final Name _name;
 79     public final Name addSuppressed;
 80     public final Name any;
 81     public final Name append;
 82     public final Name clinit;
 83     public final Name clone;
 84     public final Name close;
 85     public final Name deserializeLambda;
 86     public final Name desiredAssertionStatus;
 87     public final Name equals;
 88     public final Name error;
 89     public final Name finalize;
 90     public final Name forRemoval;
 91     public final Name reflective;
 92     public final Name getClass;
 93     public final Name hasNext;
 94     public final Name hashCode;
 95     public final Name init;
 96     public final Name invoke;
 97     public final Name iterator;
 98     public final Name length;
 99     public final Name next;
100     public final Name of;
101     public final Name ordinal;
102     public final Name provider;
103     public final Name serialVersionUID;
104     public final Name toString;
105     public final Name value;
106     public final Name valueOf;
107     public final Name values;
108     public final Name readResolve;
109     public final Name readObject;
110 
111     // class names
112     public final Name java_io_Serializable;
113     public final Name java_lang_Class;
114     public final Name java_lang_Cloneable;
115     public final Name java_lang_Enum;
116     public final Name java_lang_Object;
117 
118     // names of builtin classes
119     public final Name Array;
120     public final Name Bound;
121     public final Name Method;
122 
123     // package names
124     public final Name java;
125     public final Name java_lang;
126     public final Name jdk_internal_javac;
127 
128     // module names
129     public final Name java_base;
130     public final Name jdk_unsupported;
131 
132     // attribute names
133     public final Name Annotation;
134     public final Name AnnotationDefault;
135     public final Name BootstrapMethods;
136     public final Name Bridge;
137     public final Name CharacterRangeTable;
138     public final Name Code;
139     public final Name CompilationID;
140     public final Name ConstantValue;
141     public final Name Deprecated;
142     public final Name EnclosingMethod;
143     public final Name Enum;
144     public final Name Exceptions;
145     public final Name InnerClasses;
146     public final Name LineNumberTable;
147     public final Name LocalVariableTable;
148     public final Name LocalVariableTypeTable;
149     public final Name MethodParameters;
150     public final Name Module;
151     public final Name ModuleResolution;
152     public final Name NestHost;
153     public final Name NestMembers;
154     public final Name Record;
155     public final Name RuntimeInvisibleAnnotations;
156     public final Name RuntimeInvisibleParameterAnnotations;
157     public final Name RuntimeInvisibleTypeAnnotations;
158     public final Name RuntimeVisibleAnnotations;
159     public final Name RuntimeVisibleParameterAnnotations;
160     public final Name RuntimeVisibleTypeAnnotations;
161     public final Name Signature;
162     public final Name SourceFile;
163     public final Name SourceID;
164     public final Name StackMap;
165     public final Name StackMapTable;
166     public final Name Synthetic;
167     public final Name Value;
168     public final Name Varargs;
169     public final Name PermittedSubclasses;
170 
171     // members of java.lang.annotation.ElementType
172     public final Name ANNOTATION_TYPE;
173     public final Name CONSTRUCTOR;
174     public final Name FIELD;
175     public final Name LOCAL_VARIABLE;
176     public final Name METHOD;
177     public final Name MODULE;
178     public final Name PACKAGE;
179     public final Name PARAMETER;
180     public final Name TYPE;
181     public final Name TYPE_PARAMETER;
182     public final Name TYPE_USE;
183     public final Name RECORD_COMPONENT;
184 
185     // members of java.lang.annotation.RetentionPolicy
186     public final Name CLASS;
187     public final Name RUNTIME;
188     public final Name SOURCE;
189 
190     // other identifiers
191     public final Name T;
192     public final Name ex;
193     public final Name module_info;
194     public final Name package_info;
195     public final Name requireNonNull;
196     public final Name main;
197 
198     // lambda-related
199     public final Name lambda;
200     public final Name metafactory;
201     public final Name altMetafactory;
202     public final Name dollarThis;
203 
204     // string concat
205     public final Name makeConcat;
206     public final Name makeConcatWithConstants;
207 
208     // record related
209     // members of java.lang.runtime.ObjectMethods
210     public final Name bootstrap;
211 
212     public final Name record;
213     public final Name non;
214 
215     // serialization members, used by records too
216     public final Name serialPersistentFields;
217     public final Name writeObject;
218     public final Name writeReplace;
219     public final Name readObjectNoData;
220 
221     // sealed types
222     public final Name permits;
223     public final Name sealed;
224 
225     // pattern switches
226     public final Name typeSwitch;
227     public final Name enumSwitch;
228     public final Name enumConstant;
229 
230     public final Name.Table table;
231 
232     @SuppressWarnings("this-escape")
233     public Names(Context context) {
234         Options options = Options.instance(context);
235         table = createTable(options);
236 
237         // operators and punctuation
238         asterisk = fromString("*");
239         comma = fromString(",");
240         empty = fromString("");
241         hyphen = fromString("-");
242         one = fromString("1");
243         slash = fromString("/");
244 
245         // keywords
246         _class = fromString("class");
247         _super = fromString("super");
248         _this = fromString("this");
249         var = fromString("var");
250         exports = fromString("exports");
251         opens = fromString("opens");
252         module = fromString("module");
253         provides = fromString("provides");
254         requires = fromString("requires");
255         to = fromString("to");
256         transitive = fromString("transitive");
257         uses = fromString("uses");
258         open = fromString("open");
259         underscore = fromString("_");
260         when = fromString("when");
261         with = fromString("with");
262         yield = fromString("yield");
263 
264         // field and method names
265         _name = fromString("name");
266         addSuppressed = fromString("addSuppressed");
267         any = fromString("<any>");
268         append = fromString("append");
269         clinit = fromString("<clinit>");
270         clone = fromString("clone");
271         close = fromString("close");
272         deserializeLambda = fromString("$deserializeLambda$");
273         desiredAssertionStatus = fromString("desiredAssertionStatus");
274         equals = fromString("equals");
275         error = fromString("<error>");
276         finalize = fromString("finalize");
277         forRemoval = fromString("forRemoval");
278         reflective = fromString("reflective");
279         getClass = fromString("getClass");
280         hasNext = fromString("hasNext");
281         hashCode = fromString("hashCode");
282         init = fromString("<init>");
283         invoke = fromString("invoke");
284         iterator = fromString("iterator");
285         length = fromString("length");
286         next = fromString("next");
287         of = fromString("of");
288         ordinal = fromString("ordinal");
289         provider = fromString("provider");
290         serialVersionUID = fromString("serialVersionUID");
291         toString = fromString("toString");
292         value = fromString("value");
293         valueOf = fromString("valueOf");
294         values = fromString("values");
295         readResolve = fromString("readResolve");
296         readObject = fromString("readObject");
297         dollarThis = fromString("$this");
298 
299         // class names
300         java_io_Serializable = fromString("java.io.Serializable");
301         java_lang_Class = fromString("java.lang.Class");
302         java_lang_Cloneable = fromString("java.lang.Cloneable");
303         java_lang_Enum = fromString("java.lang.Enum");
304         java_lang_Object = fromString("java.lang.Object");
305 
306         // names of builtin classes
307         Array = fromString("Array");
308         Bound = fromString("Bound");
309         Method = fromString("Method");
310 
311         // package names
312         java = fromString("java");
313         java_lang = fromString("java.lang");
314         jdk_internal_javac = fromString("jdk.internal.javac");
315 
316         // module names
317         java_base = fromString("java.base");
318         jdk_unsupported = fromString("jdk.unsupported");
319 
320         // attribute names
321         Annotation = fromString("Annotation");
322         AnnotationDefault = fromString("AnnotationDefault");
323         BootstrapMethods = fromString("BootstrapMethods");
324         Bridge = fromString("Bridge");
325         CharacterRangeTable = fromString("CharacterRangeTable");
326         Code = fromString("Code");
327         CompilationID = fromString("CompilationID");
328         ConstantValue = fromString("ConstantValue");
329         Deprecated = fromString("Deprecated");
330         EnclosingMethod = fromString("EnclosingMethod");
331         Enum = fromString("Enum");
332         Exceptions = fromString("Exceptions");
333         InnerClasses = fromString("InnerClasses");
334         LineNumberTable = fromString("LineNumberTable");
335         LocalVariableTable = fromString("LocalVariableTable");
336         LocalVariableTypeTable = fromString("LocalVariableTypeTable");
337         MethodParameters = fromString("MethodParameters");
338         Module = fromString("Module");
339         ModuleResolution = fromString("ModuleResolution");
340         NestHost = fromString("NestHost");
341         NestMembers = fromString("NestMembers");
342         Record = fromString("Record");
343         RuntimeInvisibleAnnotations = fromString("RuntimeInvisibleAnnotations");
344         RuntimeInvisibleParameterAnnotations = fromString("RuntimeInvisibleParameterAnnotations");
345         RuntimeInvisibleTypeAnnotations = fromString("RuntimeInvisibleTypeAnnotations");
346         RuntimeVisibleAnnotations = fromString("RuntimeVisibleAnnotations");
347         RuntimeVisibleParameterAnnotations = fromString("RuntimeVisibleParameterAnnotations");
348         RuntimeVisibleTypeAnnotations = fromString("RuntimeVisibleTypeAnnotations");
349         Signature = fromString("Signature");
350         SourceFile = fromString("SourceFile");
351         SourceID = fromString("SourceID");
352         StackMap = fromString("StackMap");
353         StackMapTable = fromString("StackMapTable");
354         Synthetic = fromString("Synthetic");
355         Value = fromString("Value");
356         Varargs = fromString("Varargs");
357         PermittedSubclasses = fromString("PermittedSubclasses");
358 
359         // members of java.lang.annotation.ElementType
360         ANNOTATION_TYPE = fromString("ANNOTATION_TYPE");
361         CONSTRUCTOR = fromString("CONSTRUCTOR");
362         FIELD = fromString("FIELD");
363         LOCAL_VARIABLE = fromString("LOCAL_VARIABLE");
364         METHOD = fromString("METHOD");
365         MODULE = fromString("MODULE");
366         PACKAGE = fromString("PACKAGE");
367         PARAMETER = fromString("PARAMETER");
368         TYPE = fromString("TYPE");
369         TYPE_PARAMETER = fromString("TYPE_PARAMETER");
370         TYPE_USE = fromString("TYPE_USE");
371         RECORD_COMPONENT = fromString("RECORD_COMPONENT");
372 
373         // members of java.lang.annotation.RetentionPolicy
374         CLASS = fromString("CLASS");
375         RUNTIME = fromString("RUNTIME");
376         SOURCE = fromString("SOURCE");
377 
378         // other identifiers
379         T = fromString("T");
380         ex = fromString("ex");
381         module_info = fromString("module-info");
382         package_info = fromString("package-info");
383         requireNonNull = fromString("requireNonNull");
384         main = fromString("main");
385 
386         //lambda-related
387         lambda = fromString("lambda$");
388         metafactory = fromString("metafactory");
389         altMetafactory = fromString("altMetafactory");
390 
391         // string concat
392         makeConcat = fromString("makeConcat");
393         makeConcatWithConstants = fromString("makeConcatWithConstants");
394 
395         bootstrap = fromString("bootstrap");
396         record = fromString("record");
397         non = fromString("non");
398 
399         serialPersistentFields = fromString("serialPersistentFields");
400         writeObject = fromString("writeObject");
401         writeReplace = fromString("writeReplace");
402         readObjectNoData = fromString("readObjectNoData");
403 
404         // sealed types
405         permits = fromString("permits");
406         sealed = fromString("sealed");
407 
408 
409         // pattern switches
410         typeSwitch = fromString("typeSwitch");
411         enumSwitch = fromString("enumSwitch");
412         enumConstant = fromString("enumConstant");
413     }
414 
415     protected Name.Table createTable(Options options) {
416         boolean useUnsharedTable = options.isSet("useUnsharedTable");
417         if (useUnsharedTable)
418             return newUnsharedNameTable();
419         boolean useSharedTable = options.isSet("useSharedTable");
420         if (useSharedTable)
421             return newSharedNameTable();
422         boolean internStringTable = options.isSet("internStringTable");
423         return newStringNameTable(internStringTable);
424     }
425 
426     public StringNameTable newStringNameTable(boolean intern) {
427         return StringNameTable.create(this, intern);
428     }
429 
430     public SharedNameTable newSharedNameTable() {
431         return SharedNameTable.create(this);
432     }
433 
434     public UnsharedNameTable newUnsharedNameTable() {
435         return UnsharedNameTable.create(this);
436     }
437 
438     public void dispose() {
439         table.dispose();
440     }
441 
442     public Name fromChars(char[] cs, int start, int len) {
443         return table.fromChars(cs, start, len);
444     }
445 
446     public Name fromString(String s) {
447         return table.fromString(s);
448     }
449 
450     public Name fromUtf(byte[] cs) throws InvalidUtfException {
451         return table.fromUtf(cs);
452     }
453 
454     public Name fromUtf(byte[] cs, int start, int len, Convert.Validation validation) throws InvalidUtfException {
455         return table.fromUtf(cs, start, len, validation);
456     }
457 
458     public Name fromUtfLax(byte[] cs, int start, int len) {
459         try {
460             return table.fromUtf(cs, start, len, Convert.Validation.NONE);
461         } catch (InvalidUtfException e) {
462             throw new AssertionError(e);
463         }
464     }
465 }