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     public final Name java_lang_System;
118 
119     // names of builtin classes
120     public final Name Array;
121     public final Name Bound;
122     public final Name Method;
123 
124     // package names
125     public final Name java;
126     public final Name java_lang;
127     public final Name jdk_internal_javac;
128 
129     // module names
130     public final Name java_base;
131     public final Name jdk_unsupported;
132 
133     // attribute names
134     public final Name Annotation;
135     public final Name AnnotationDefault;
136     public final Name BootstrapMethods;
137     public final Name Bridge;
138     public final Name CharacterRangeTable;
139     public final Name Code;
140     public final Name CompilationID;
141     public final Name ConstantValue;
142     public final Name Deprecated;
143     public final Name EnclosingMethod;
144     public final Name Enum;
145     public final Name Exceptions;
146     public final Name InnerClasses;
147     public final Name LineNumberTable;
148     public final Name LocalVariableTable;
149     public final Name LocalVariableTypeTable;
150     public final Name MethodParameters;
151     public final Name Module;
152     public final Name ModuleResolution;
153     public final Name NestHost;
154     public final Name NestMembers;
155     public final Name LoadableDescriptors;
156     public final Name Record;
157     public final Name RuntimeInvisibleAnnotations;
158     public final Name RuntimeInvisibleParameterAnnotations;
159     public final Name RuntimeInvisibleTypeAnnotations;
160     public final Name RuntimeVisibleAnnotations;
161     public final Name RuntimeVisibleParameterAnnotations;
162     public final Name RuntimeVisibleTypeAnnotations;
163     public final Name Signature;
164     public final Name SourceFile;
165     public final Name SourceID;
166     public final Name StackMap;
167     public final Name StackMapTable;
168     public final Name Synthetic;
169     public final Name Value;
170     public final Name Varargs;
171     public final Name PermittedSubclasses;
172 
173     // members of java.lang.annotation.ElementType
174     public final Name ANNOTATION_TYPE;
175     public final Name CONSTRUCTOR;
176     public final Name FIELD;
177     public final Name LOCAL_VARIABLE;
178     public final Name METHOD;
179     public final Name MODULE;
180     public final Name PACKAGE;
181     public final Name PARAMETER;
182     public final Name TYPE;
183     public final Name TYPE_PARAMETER;
184     public final Name TYPE_USE;
185     public final Name RECORD_COMPONENT;
186 
187     // members of java.lang.annotation.RetentionPolicy
188     public final Name CLASS;
189     public final Name RUNTIME;
190     public final Name SOURCE;
191 
192     // other identifiers
193     public final Name T;
194     public final Name ex;
195     public final Name module_info;
196     public final Name package_info;
197     public final Name requireNonNull;
198     public final Name main;
199 
200     // lambda-related
201     public final Name lambda;
202     public final Name metafactory;
203     public final Name altMetafactory;
204     public final Name dollarThis;
205 
206     // string concat
207     public final Name makeConcat;
208     public final Name makeConcatWithConstants;
209 
210     // values
211     public final Name dollarValue;
212 
213 
214     // record related
215     // members of java.lang.runtime.ObjectMethods
216     public final Name bootstrap;
217 
218     public final Name record;
219     public final Name non;
220 
221     // serialization members, used by records too
222     public final Name serialPersistentFields;
223     public final Name writeObject;
224     public final Name writeReplace;
225     public final Name readObjectNoData;
226 
227     // sealed types
228     public final Name permits;
229     public final Name sealed;
230 
231     // pattern switches
232     public final Name typeSwitch;
233     public final Name enumSwitch;
234     public final Name enumConstant;
235 
236     public final Name.Table table;
237 
238     @SuppressWarnings("this-escape")
239     public Names(Context context) {
240         Options options = Options.instance(context);
241         table = createTable(options);
242 
243         // operators and punctuation
244         asterisk = fromString("*");
245         comma = fromString(",");
246         empty = fromString("");
247         hyphen = fromString("-");
248         one = fromString("1");
249         slash = fromString("/");
250 
251         // keywords
252         _class = fromString("class");
253         _super = fromString("super");
254         _this = fromString("this");
255         var = fromString("var");
256         exports = fromString("exports");
257         opens = fromString("opens");
258         module = fromString("module");
259         provides = fromString("provides");
260         requires = fromString("requires");
261         to = fromString("to");
262         transitive = fromString("transitive");
263         uses = fromString("uses");
264         open = fromString("open");
265         underscore = fromString("_");
266         when = fromString("when");
267         with = fromString("with");
268         yield = fromString("yield");
269 
270         // field and method names
271         _name = fromString("name");
272         addSuppressed = fromString("addSuppressed");
273         any = fromString("<any>");
274         append = fromString("append");
275         clinit = fromString("<clinit>");
276         clone = fromString("clone");
277         close = fromString("close");
278         deserializeLambda = fromString("$deserializeLambda$");
279         desiredAssertionStatus = fromString("desiredAssertionStatus");
280         equals = fromString("equals");
281         error = fromString("<error>");
282         finalize = fromString("finalize");
283         forRemoval = fromString("forRemoval");
284         reflective = fromString("reflective");
285         getClass = fromString("getClass");
286         hasNext = fromString("hasNext");
287         hashCode = fromString("hashCode");
288         init = fromString("<init>");
289         invoke = fromString("invoke");
290         iterator = fromString("iterator");
291         length = fromString("length");
292         next = fromString("next");
293         of = fromString("of");
294         ordinal = fromString("ordinal");
295         provider = fromString("provider");
296         serialVersionUID = fromString("serialVersionUID");
297         toString = fromString("toString");
298         value = fromString("value");
299         valueOf = fromString("valueOf");
300         values = fromString("values");
301         readResolve = fromString("readResolve");
302         readObject = fromString("readObject");
303         dollarThis = fromString("$this");
304 
305         // class names
306         java_io_Serializable = fromString("java.io.Serializable");
307         java_lang_Class = fromString("java.lang.Class");
308         java_lang_Cloneable = fromString("java.lang.Cloneable");
309         java_lang_Enum = fromString("java.lang.Enum");
310         java_lang_Object = fromString("java.lang.Object");
311         java_lang_System = fromString("java.lang.System");
312 
313         // names of builtin classes
314         Array = fromString("Array");
315         Bound = fromString("Bound");
316         Method = fromString("Method");
317 
318         // package names
319         java = fromString("java");
320         java_lang = fromString("java.lang");
321         jdk_internal_javac = fromString("jdk.internal.javac");
322 
323         // module names
324         java_base = fromString("java.base");
325         jdk_unsupported = fromString("jdk.unsupported");
326 
327         // attribute names
328         Annotation = fromString("Annotation");
329         AnnotationDefault = fromString("AnnotationDefault");
330         BootstrapMethods = fromString("BootstrapMethods");
331         Bridge = fromString("Bridge");
332         CharacterRangeTable = fromString("CharacterRangeTable");
333         Code = fromString("Code");
334         CompilationID = fromString("CompilationID");
335         ConstantValue = fromString("ConstantValue");
336         Deprecated = fromString("Deprecated");
337         EnclosingMethod = fromString("EnclosingMethod");
338         Enum = fromString("Enum");
339         Exceptions = fromString("Exceptions");
340         InnerClasses = fromString("InnerClasses");
341         LineNumberTable = fromString("LineNumberTable");
342         LocalVariableTable = fromString("LocalVariableTable");
343         LocalVariableTypeTable = fromString("LocalVariableTypeTable");
344         MethodParameters = fromString("MethodParameters");
345         Module = fromString("Module");
346         ModuleResolution = fromString("ModuleResolution");
347         NestHost = fromString("NestHost");
348         NestMembers = fromString("NestMembers");
349         LoadableDescriptors = fromString("LoadableDescriptors");
350         Record = fromString("Record");
351         RuntimeInvisibleAnnotations = fromString("RuntimeInvisibleAnnotations");
352         RuntimeInvisibleParameterAnnotations = fromString("RuntimeInvisibleParameterAnnotations");
353         RuntimeInvisibleTypeAnnotations = fromString("RuntimeInvisibleTypeAnnotations");
354         RuntimeVisibleAnnotations = fromString("RuntimeVisibleAnnotations");
355         RuntimeVisibleParameterAnnotations = fromString("RuntimeVisibleParameterAnnotations");
356         RuntimeVisibleTypeAnnotations = fromString("RuntimeVisibleTypeAnnotations");
357         Signature = fromString("Signature");
358         SourceFile = fromString("SourceFile");
359         SourceID = fromString("SourceID");
360         StackMap = fromString("StackMap");
361         StackMapTable = fromString("StackMapTable");
362         Synthetic = fromString("Synthetic");
363         Value = fromString("Value");
364         Varargs = fromString("Varargs");
365         PermittedSubclasses = fromString("PermittedSubclasses");
366 
367         // members of java.lang.annotation.ElementType
368         ANNOTATION_TYPE = fromString("ANNOTATION_TYPE");
369         CONSTRUCTOR = fromString("CONSTRUCTOR");
370         FIELD = fromString("FIELD");
371         LOCAL_VARIABLE = fromString("LOCAL_VARIABLE");
372         METHOD = fromString("METHOD");
373         MODULE = fromString("MODULE");
374         PACKAGE = fromString("PACKAGE");
375         PARAMETER = fromString("PARAMETER");
376         TYPE = fromString("TYPE");
377         TYPE_PARAMETER = fromString("TYPE_PARAMETER");
378         TYPE_USE = fromString("TYPE_USE");
379         RECORD_COMPONENT = fromString("RECORD_COMPONENT");
380 
381         // members of java.lang.annotation.RetentionPolicy
382         CLASS = fromString("CLASS");
383         RUNTIME = fromString("RUNTIME");
384         SOURCE = fromString("SOURCE");
385 
386         // other identifiers
387         T = fromString("T");
388         ex = fromString("ex");
389         module_info = fromString("module-info");
390         package_info = fromString("package-info");
391         requireNonNull = fromString("requireNonNull");
392         main = fromString("main");
393 
394         //lambda-related
395         lambda = fromString("lambda$");
396         metafactory = fromString("metafactory");
397         altMetafactory = fromString("altMetafactory");
398 
399         // string concat
400         makeConcat = fromString("makeConcat");
401         makeConcatWithConstants = fromString("makeConcatWithConstants");
402 
403         dollarValue = fromString("$value");
404 
405         bootstrap = fromString("bootstrap");
406         record = fromString("record");
407         non = fromString("non");
408 
409         serialPersistentFields = fromString("serialPersistentFields");
410         writeObject = fromString("writeObject");
411         writeReplace = fromString("writeReplace");
412         readObjectNoData = fromString("readObjectNoData");
413 
414         // sealed types
415         permits = fromString("permits");
416         sealed = fromString("sealed");
417 
418 
419         // pattern switches
420         typeSwitch = fromString("typeSwitch");
421         enumSwitch = fromString("enumSwitch");
422         enumConstant = fromString("enumConstant");
423     }
424 
425     protected Name.Table createTable(Options options) {
426         boolean useUnsharedTable = options.isSet("useUnsharedTable");
427         if (useUnsharedTable)
428             return newUnsharedNameTable();
429         boolean useSharedTable = options.isSet("useSharedTable");
430         if (useSharedTable)
431             return newSharedNameTable();
432         boolean internStringTable = options.isSet("internStringTable");
433         return newStringNameTable(internStringTable);
434     }
435 
436     public StringNameTable newStringNameTable(boolean intern) {
437         return StringNameTable.create(this, intern);
438     }
439 
440     public SharedNameTable newSharedNameTable() {
441         return SharedNameTable.create(this);
442     }
443 
444     public UnsharedNameTable newUnsharedNameTable() {
445         return UnsharedNameTable.create(this);
446     }
447 
448     public boolean isInit(Name name) {
449         return name == init;
450     }
451 
452     public void dispose() {
453         table.dispose();
454     }
455 
456     public Name fromChars(char[] cs, int start, int len) {
457         return table.fromChars(cs, start, len);
458     }
459 
460     public Name fromString(String s) {
461         return table.fromString(s);
462     }
463 
464     public Name fromUtf(byte[] cs) throws InvalidUtfException {
465         return table.fromUtf(cs);
466     }
467 
468     public Name fromUtf(byte[] cs, int start, int len, Convert.Validation validation) throws InvalidUtfException {
469         return table.fromUtf(cs, start, len, validation);
470     }
471 
472     public Name fromUtfLax(byte[] cs, int start, int len) {
473         try {
474             return table.fromUtf(cs, start, len, Convert.Validation.NONE);
475         } catch (InvalidUtfException e) {
476             throw new AssertionError(e);
477         }
478     }
479 }