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6574134: Allow for alternative implementation of Name Table with garbage collection of name bytes

Browse source 
Reviewed-by: darcy, mcimadamore
This commit is contained in:
Jonathan Gibbons 2008-09-16 18:35:18 -07:00
parent 4350001c77
commit 3ca95fc7a6
44 changed files with 1007 additions and 752 deletions
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6
langtools/src/share/classes/com/sun/tools/apt/mirror/AptEnv.java
View file

@ -33,7 +33,7 @@ import com.sun.tools.javac.code.Symbol.CompletionFailure;
import com.sun.tools.javac.comp.Attr;
import com.sun.tools.javac.comp.Enter;
import com.sun.tools.javac.util.Context;
import com.sun.tools.javac.util.Name;
import com.sun.tools.javac.util.Names;
/**
@ -42,7 +42,7 @@ import com.sun.tools.javac.util.Name;
public class AptEnv {
public Name.Table names; // javac's name table
public Names names; // javac's name table
public Symtab symtab; // javac's predefined symbols
public Types jctypes; // javac's type utilities
public Enter enter; // javac's enter phase
@ -66,7 +66,7 @@ public class AptEnv {
private AptEnv(Context context) {
context.put(aptEnvKey, this);
names = Name.Table.instance(context);
names = Names.instance(context);
symtab = Symtab.instance(context);
jctypes = Types.instance(context);
enter = Enter.instance(context);

2
langtools/src/share/classes/com/sun/tools/javac/code/Attribute.java
View file

@ -166,7 +166,7 @@ public abstract class Attribute implements AnnotationValue {
first = false;
Name name = value.fst.name;
if (len > 1 || name != name.table.value) {
if (len > 1 || name != name.table.names.value) {
buf.append(name);
buf.append('=');
}

14
langtools/src/share/classes/com/sun/tools/javac/code/Scope.java
View file

@ -145,7 +145,7 @@ public class Scope {
assert shared == 0;
if (table != next.table) return next;
while (elems != null) {
int hash = elems.sym.name.index & hashMask;
int hash = elems.sym.name.hashCode() & hashMask;
Entry e = table[hash];
assert e == elems : elems.sym;
table[hash] = elems.shadowed;
@ -180,7 +180,7 @@ public class Scope {
private void copy(Entry e) {
if (e.sym != null) {
copy(e.shadowed);
int hash = e.sym.name.index & hashMask;
int hash = e.sym.name.hashCode() & hashMask;
e.shadowed = table[hash];
table[hash] = e;
}
@ -206,7 +206,7 @@ public class Scope {
assert shared == 0;
// Temporarily disabled (bug 6460352):
// if (nelems * 3 >= hashMask * 2) dble();
int hash = sym.name.index & hashMask;
int hash = sym.name.hashCode() & hashMask;
Entry e = makeEntry(sym, table[hash], elems, s, origin);
table[hash] = e;
elems = e;
@ -227,9 +227,9 @@ public class Scope {
if (e.scope == null) return;
// remove e from table and shadowed list;
Entry te = table[sym.name.index & hashMask];
Entry te = table[sym.name.hashCode() & hashMask];
if (te == e)
table[sym.name.index & hashMask] = e.shadowed;
table[sym.name.hashCode() & hashMask] = e.shadowed;
else while (true) {
if (te.shadowed == e) {
te.shadowed = e.shadowed;
@ -279,7 +279,7 @@ public class Scope {
* for regular entries.
*/
public Entry lookup(Name name) {
Entry e = table[name.index & hashMask];
Entry e = table[name.hashCode() & hashMask];
while (e.scope != null && e.sym.name != name)
e = e.shadowed;
return e;
@ -400,7 +400,7 @@ public class Scope {
}
public Entry lookup(Name name) {
Entry e = table[name.index & hashMask];
Entry e = table[name.hashCode() & hashMask];
while (e.scope != null &&
(e.sym.name != name ||
/* Since an inner class will show up in package and

20
langtools/src/share/classes/com/sun/tools/javac/code/Symbol.java
View file

@ -146,14 +146,14 @@ public abstract class Symbol implements Element {
* the default package; otherwise, the owner symbol is returned
*/
public Symbol location() {
if (owner.name == null || (owner.name.len == 0 && owner.kind != PCK)) {
if (owner.name == null || (owner.name.isEmpty() && owner.kind != PCK)) {
return null;
}
return owner;
}
public Symbol location(Type site, Types types) {
if (owner.name == null || owner.name.len == 0) {
if (owner.name == null || owner.name.isEmpty()) {
return location();
}
if (owner.type.tag == CLASS) {
@ -177,7 +177,7 @@ public abstract class Symbol implements Element {
*/
public Type externalType(Types types) {
Type t = erasure(types);
if (name == name.table.init && owner.hasOuterInstance()) {
if (name == name.table.names.init && owner.hasOuterInstance()) {
Type outerThisType = types.erasure(owner.type.getEnclosingType());
return new MethodType(t.getParameterTypes().prepend(outerThisType),
t.getReturnType(),
@ -212,7 +212,7 @@ public abstract class Symbol implements Element {
/** Is this symbol a constructor?
*/
public boolean isConstructor() {
return name == name.table.init;
return name == name.table.names.init;
}
/** The fully qualified name of this symbol.
@ -501,7 +501,7 @@ public abstract class Symbol implements Element {
|| (owner.kind == TYP && owner.type.tag == TYPEVAR)
)) return name;
Name prefix = owner.getQualifiedName();
if (prefix == null || prefix == prefix.table.empty)
if (prefix == null || prefix == prefix.table.names.empty)
return name;
else return prefix.append('.', name);
}
@ -516,7 +516,7 @@ public abstract class Symbol implements Element {
) return name;
char sep = owner.kind == TYP ? '$' : '.';
Name prefix = owner.flatName();
if (prefix == null || prefix == prefix.table.empty)
if (prefix == null || prefix == prefix.table.names.empty)
return name;
else return prefix.append(sep, name);
}
@ -737,7 +737,7 @@ public abstract class Symbol implements Element {
}
public String className() {
if (name.len == 0)
if (name.isEmpty())
return
Log.getLocalizedString("anonymous.class", flatname);
else
@ -1011,7 +1011,7 @@ public abstract class Symbol implements Element {
if ((flags() & BLOCK) != 0) {
return owner.name.toString();
} else {
String s = (name == name.table.init)
String s = (name == name.table.names.init)
? owner.name.toString()
: name.toString();
if (type != null) {
@ -1208,9 +1208,9 @@ public abstract class Symbol implements Element {
}
public ElementKind getKind() {
if (name == name.table.init)
if (name == name.table.names.init)
return ElementKind.CONSTRUCTOR;
else if (name == name.table.clinit)
else if (name == name.table.names.clinit)
return ElementKind.STATIC_INIT;
else
return ElementKind.METHOD;

4
langtools/src/share/classes/com/sun/tools/javac/code/Symtab.java
View file

@ -73,7 +73,7 @@ public class Symtab {
public final Type botType = new BottomType();
public final JCNoType voidType = new JCNoType(TypeTags.VOID);
private final Name.Table names;
private final Names names;
private final ClassReader reader;
private final Target target;
@ -328,7 +328,7 @@ public class Symtab {
protected Symtab(Context context) throws CompletionFailure {
context.put(symtabKey, this);
names = Name.Table.instance(context);
names = Names.instance(context);
target = Target.instance(context);
// Create the unknown type

4
langtools/src/share/classes/com/sun/tools/javac/code/Type.java
View file

@ -599,14 +599,14 @@ public class Type implements PrimitiveType {
}
//where
private String className(Symbol sym, boolean longform) {
if (sym.name.len == 0 && (sym.flags() & COMPOUND) != 0) {
if (sym.name.isEmpty() && (sym.flags() & COMPOUND) != 0) {
StringBuffer s = new StringBuffer(supertype_field.toString());
for (List<Type> is=interfaces_field; is.nonEmpty(); is = is.tail) {
s.append("&");
s.append(is.head.toString());
}
return s.toString();
} else if (sym.name.len == 0) {
} else if (sym.name.isEmpty()) {
String s;
ClassType norm = (ClassType) tsym.type;
if (norm == null) {

6
langtools/src/share/classes/com/sun/tools/javac/code/Types.java
View file

@ -67,7 +67,7 @@ public class Types {
new Context.Key<Types>();
final Symtab syms;
final Name.Table names;
final Names names;
final boolean allowBoxing;
final ClassReader reader;
final Source source;
@ -86,7 +86,7 @@ public class Types {
protected Types(Context context) {
context.put(typesKey, this);
syms = Symtab.instance(context);
names = Name.Table.instance(context);
names = Names.instance(context);
allowBoxing = Source.instance(context).allowBoxing();
reader = ClassReader.instance(context);
source = Source.instance(context);
@ -2213,7 +2213,7 @@ public class Types {
ClassType cls = (ClassType)t;
if (cls.rank_field < 0) {
Name fullname = cls.tsym.getQualifiedName();
if (fullname == fullname.table.java_lang_Object)
if (fullname == names.java_lang_Object)
cls.rank_field = 0;
else {
int r = rank(supertype(cls));

4
langtools/src/share/classes/com/sun/tools/javac/comp/Annotate.java
View file

@ -55,7 +55,7 @@ public class Annotate {
final TreeMaker make;
final Log log;
final Symtab syms;
final Name.Table names;
final Names names;
final Resolve rs;
final Types types;
final ConstFold cfolder;
@ -67,7 +67,7 @@ public class Annotate {
make = TreeMaker.instance(context);
log = Log.instance(context);
syms = Symtab.instance(context);
names = Name.Table.instance(context);
names = Names.instance(context);
rs = Resolve.instance(context);
types = Types.instance(context);
cfolder = ConstFold.instance(context);

4
langtools/src/share/classes/com/sun/tools/javac/comp/Attr.java
View file

@ -68,7 +68,7 @@ public class Attr extends JCTree.Visitor {
protected static final Context.Key<Attr> attrKey =
new Context.Key<Attr>();
final Name.Table names;
final Names names;
final Log log;
final Symtab syms;
final Resolve rs;
@ -92,7 +92,7 @@ public class Attr extends JCTree.Visitor {
protected Attr(Context context) {
context.put(attrKey, this);
names = Name.Table.instance(context);
names = Names.instance(context);
log = Log.instance(context);
syms = Symtab.instance(context);
rs = Resolve.instance(context);

6
langtools/src/share/classes/com/sun/tools/javac/comp/Check.java
View file

@ -56,7 +56,7 @@ public class Check {
protected static final Context.Key<Check> checkKey =
new Context.Key<Check>();
private final Name.Table names;
private final Names names;
private final Log log;
private final Symtab syms;
private final Infer infer;
@ -82,7 +82,7 @@ public class Check {
protected Check(Context context) {
context.put(checkKey, this);
names = Name.Table.instance(context);
names = Names.instance(context);
log = Log.instance(context);
syms = Symtab.instance(context);
infer = Infer.instance(context);
@ -628,7 +628,7 @@ public class Check {
case TYP:
if (sym.isLocal()) {
mask = LocalClassFlags;
if (sym.name.len == 0) { // Anonymous class
if (sym.name.isEmpty()) { // Anonymous class
// Anonymous classes in static methods are themselves static;
// that's why we admit STATIC here.
mask |= STATIC;

4
langtools/src/share/classes/com/sun/tools/javac/comp/Enter.java
View file

@ -333,7 +333,7 @@ public class Enter extends JCTree.Visitor {
"class.public.should.be.in.file", tree.name);
}
} else {
if (tree.name.len != 0 &&
if (!tree.name.isEmpty() &&
!chk.checkUniqueClassName(tree.pos(), tree.name, enclScope)) {
result = null;
return;
@ -348,7 +348,7 @@ public class Enter extends JCTree.Visitor {
// We are seeing a local class.
c = reader.defineClass(tree.name, owner);
c.flatname = chk.localClassName(c);
if (c.name.len != 0)
if (!c.name.isEmpty())
chk.checkTransparentClass(tree.pos(), c, env.info.scope);
}
}

4
langtools/src/share/classes/com/sun/tools/javac/comp/Flow.java
View file

@ -177,7 +177,7 @@ public class Flow extends TreeScanner {
protected static final Context.Key<Flow> flowKey =
new Context.Key<Flow>();
private final Name.Table names;
private final Names names;
private final Log log;
private final Symtab syms;
private final Types types;
@ -195,7 +195,7 @@ public class Flow extends TreeScanner {
protected Flow(Context context) {
context.put(flowKey, this);
names = Name.Table.instance(context);
names = Names.instance(context);
log = Log.instance(context);
syms = Symtab.instance(context);
types = Types.instance(context);

10
langtools/src/share/classes/com/sun/tools/javac/comp/Lower.java
View file

@ -64,7 +64,7 @@ public class Lower extends TreeTranslator {
return instance;
}
private Name.Table names;
private Names names;
private Log log;
private Symtab syms;
private Resolve rs;
@ -85,7 +85,7 @@ public class Lower extends TreeTranslator {
protected Lower(Context context) {
context.put(lowerKey, this);
names = Name.Table.instance(context);
names = Names.instance(context);
log = Log.instance(context);
syms = Symtab.instance(context);
rs = Resolve.instance(context);
@ -1830,7 +1830,7 @@ public class Lower extends TreeTranslator {
}
VarSymbol var =
new VarSymbol(FINAL|SYNTHETIC,
Name.fromString(names,
names.fromString(
target.syntheticNameChar()
+ "" + rval.hashCode()),
type,
@ -3338,7 +3338,7 @@ public class Lower extends TreeTranslator {
ListBuffer<JCStatement> blockStatements = new ListBuffer<JCStatement>();
JCModifiers mod1 = make.Modifiers(0L);
Name oName = Name.fromString(names, "o");
Name oName = names.fromString("o");
JCVariableDecl par1 = make.Param(oName, cdef.type, compareToSym);
JCIdent paramId1 = make.Ident(names.java_lang_Object);
@ -3352,7 +3352,7 @@ public class Lower extends TreeTranslator {
JCTypeCast cast = make.TypeCast(castTargetIdent, par1UsageId);
cast.setType(castTargetIdent.type);
Name otherName = Name.fromString(names, "other");
Name otherName = names.fromString("other");
VarSymbol otherVarSym = new VarSymbol(mod1.flags,
otherName,

8
langtools/src/share/classes/com/sun/tools/javac/comp/MemberEnter.java
View file

@ -61,7 +61,7 @@ public class MemberEnter extends JCTree.Visitor implements Completer {
*/
final static boolean checkClash = true;
private final Name.Table names;
private final Names names;
private final Enter enter;
private final Log log;
private final Check chk;
@ -86,7 +86,7 @@ public class MemberEnter extends JCTree.Visitor implements Completer {
protected MemberEnter(Context context) {
context.put(memberEnterKey, this);
names = Name.Table.instance(context);
names = Names.instance(context);
enter = Enter.instance(context);
log = Log.instance(context);
chk = Check.instance(context);
@ -919,7 +919,7 @@ public class MemberEnter extends JCTree.Visitor implements Completer {
List<Type> thrown = List.nil();
long ctorFlags = 0;
boolean based = false;
if (c.name.len == 0) {
if (c.name.isEmpty()) {
JCNewClass nc = (JCNewClass)env.next.tree;
if (nc.constructor != null) {
Type superConstrType = types.memberType(c.type,
@ -1068,7 +1068,7 @@ public class MemberEnter extends JCTree.Visitor implements Completer {
flags = (flags & ~AccessFlags) | PRIVATE | GENERATEDCONSTR;
} else
flags |= (c.flags() & AccessFlags) | GENERATEDCONSTR;
if (c.name.len == 0) flags |= ANONCONSTR;
if (c.name.isEmpty()) flags |= ANONCONSTR;
JCTree result = make.MethodDef(
make.Modifiers(flags),
names.init,

20
langtools/src/share/classes/com/sun/tools/javac/comp/Resolve.java
View file

@ -51,7 +51,7 @@ public class Resolve {
protected static final Context.Key<Resolve> resolveKey =
new Context.Key<Resolve>();
Name.Table names;
Names names;
Log log;
Symtab syms;
Check chk;
@ -86,7 +86,7 @@ public class Resolve {
typeNotFound = new
ResolveError(ABSENT_TYP, syms.errSymbol, "type not found");
names = Name.Table.instance(context);
names = Names.instance(context);
log = Log.instance(context);
chk = Check.instance(context);
infer = Infer.instance(context);
@ -1538,7 +1538,7 @@ public class Resolve {
argtypes = List.nil();
if (typeargtypes == null)
typeargtypes = List.nil();
if (name != name.table.error) {
if (name != names.error) {
KindName kindname = absentKind(kind);
Name idname = name;
if (kind >= WRONG_MTHS && kind <= ABSENT_MTH) {
@ -1547,7 +1547,7 @@ public class Resolve {
name, argtypes);
return;
}
if (name == name.table.init) {
if (name == names.init) {
kindname = KindName.CONSTRUCTOR;
idname = site.tsym.name;
}
@ -1563,7 +1563,7 @@ public class Resolve {
kindName(ws.owner),
ws.owner.type,
explanation);
} else if (site.tsym.name.len != 0) {
} else if (!site.tsym.name.isEmpty()) {
if (site.tsym.kind == PCK && !site.tsym.exists())
log.error(pos, "doesnt.exist", site.tsym);
else {
@ -1601,9 +1601,9 @@ public class Resolve {
*/
boolean isOperator(Name name) {
int i = 0;
while (i < name.len &&
"+-~!*/%&|^<>=".indexOf(name.byteAt(i)) >= 0) i++;
return i > 0 && i == name.len;
while (i < name.getByteLength() &&
"+-~!*/%&|^<>=".indexOf(name.getByteAt(i)) >= 0) i++;
return i > 0 && i == name.getByteLength();
}
}
@ -1639,7 +1639,7 @@ public class Resolve {
void report(Log log, DiagnosticPosition pos, Type site, Name name,
List<Type> argtypes, List<Type> typeargtypes) {
if (sym.owner.type.tag != ERROR) {
if (sym.name == sym.name.table.init && sym.owner != site.tsym)
if (sym.name == names.init && sym.owner != site.tsym)
new ResolveError(ABSENT_MTH, sym.owner, "absent method " + sym).report(
log, pos, site, name, argtypes, typeargtypes);
if ((sym.flags() & PUBLIC) != 0
@ -1723,7 +1723,7 @@ public class Resolve {
else break;
}
Name sname = pair.sym1.name;
if (sname == sname.table.init) sname = pair.sym1.owner.name;
if (sname == names.init) sname = pair.sym1.owner.name;
log.error(pos, "ref.ambiguous", sname,
kindName(pair.sym1),
pair.sym1,

4
langtools/src/share/classes/com/sun/tools/javac/comp/TransTypes.java
View file

@ -59,7 +59,7 @@ public class TransTypes extends TreeTranslator {
return instance;
}
private Name.Table names;
private Names names;
private Log log;
private Symtab syms;
private TreeMaker make;
@ -77,7 +77,7 @@ public class TransTypes extends TreeTranslator {
protected TransTypes(Context context) {
context.put(transTypesKey, this);
names = Name.Table.instance(context);
names = Names.instance(context);
log = Log.instance(context);
syms = Symtab.instance(context);
enter = Enter.instance(context);

4
langtools/src/share/classes/com/sun/tools/javac/jvm/ClassFile.java
View file

@ -108,7 +108,7 @@ public class ClassFile {
* converting '/' to '.'.
*/
public static byte[] internalize(Name name) {
return internalize(name.table.names, name.index, name.len);
return internalize(name.getByteArray(), name.getByteOffset(), name.getByteLength());
}
/** Return external representation of buf[offset..offset+len-1],
@ -128,7 +128,7 @@ public class ClassFile {
* converting '/' to '.'.
*/
public static byte[] externalize(Name name) {
return externalize(name.table.names, name.index, name.len);
return externalize(name.getByteArray(), name.getByteOffset(), name.getByteLength());
}
/************************************************************************

22
langtools/src/share/classes/com/sun/tools/javac/jvm/ClassReader.java
View file

@ -122,7 +122,7 @@ public class ClassReader extends ClassFile implements Completer {
Types types;
/** The name table. */
final Name.Table names;
final Names names;
/** Force a completion failure on this name
*/
@ -220,7 +220,7 @@ public class ClassReader extends ClassFile implements Completer {
protected ClassReader(Context context, boolean definitive) {
if (definitive) context.put(classReaderKey, this);
names = Name.Table.instance(context);
names = Names.instance(context);
syms = Symtab.instance(context);
types = Types.instance(context);
fileManager = context.get(JavaFileManager.class);
@ -516,14 +516,6 @@ public class ClassReader extends ClassFile implements Completer {
int siglimit;
boolean sigEnterPhase = false;
/** Convert signature to type, where signature is a name.
*/
Type sigToType(Name sig) {
return sig == null
? null
: sigToType(sig.table.names, sig.index, sig.len);
}
/** Convert signature to type, where signature is a byte array segment.
*/
Type sigToType(byte[] sig, int offset, int len) {
@ -741,12 +733,6 @@ public class ClassReader extends ClassFile implements Completer {
return head.tail;
}
/** Convert signature to type parameters, where signature is a name.
*/
List<Type> sigToTypeParams(Name name) {
return sigToTypeParams(name.table.names, name.index, name.len);
}
/** Convert signature to type parameters, where signature is a byte
* array segment.
*/
@ -952,7 +938,7 @@ public class ClassReader extends ClassFile implements Completer {
self.name = simpleBinaryName(self.flatname, c.flatname) ;
self.owner = m != null ? m : c;
if (self.name.len == 0)
if (self.name.isEmpty())
self.fullname = null;
else
self.fullname = ClassSymbol.formFullName(self.name, self.owner);
@ -1500,7 +1486,7 @@ public class ClassReader extends ClassFile implements Completer {
// Sometimes anonymous classes don't have an outer
// instance, however, there is no reliable way to tell so
// we never strip this$n
if (currentOwner.name.len != 0)
if (!currentOwner.name.isEmpty())
type = new MethodType(type.getParameterTypes().tail,
type.getReturnType(),
type.getThrownTypes(),

15
langtools/src/share/classes/com/sun/tools/javac/jvm/ClassWriter.java
View file

@ -26,7 +26,6 @@
package com.sun.tools.javac.jvm;
import java.io.*;
import java.util.*;
import java.util.Set;
import java.util.HashSet;
@ -140,7 +139,7 @@ public class ClassWriter extends ClassFile {
private final Log log;
/** The name table. */
private final Name.Table names;
private final Names names;
/** Access to files. */
private final JavaFileManager fileManager;
@ -166,7 +165,7 @@ public class ClassWriter extends ClassFile {
context.put(classWriterKey, this);
log = Log.instance(context);
names = Name.Table.instance(context);
names = Names.instance(context);
syms = Symtab.instance(context);
options = Options.instance(context);
target = Target.instance(context);
@ -375,9 +374,7 @@ public class ClassWriter extends ClassFile {
sigbuf.appendByte('.');
assert c.flatname.startsWith(c.owner.enclClass().flatname);
sigbuf.appendName(rawOuter
? c.flatname.subName(c.owner.enclClass()
.flatname.len+1,
c.flatname.len)
? c.flatname.subName(c.owner.enclClass().flatname.getByteLength()+1,c.flatname.getByteLength())
: c.name);
} else {
sigbuf.appendBytes(externalize(c.flatname));
@ -542,7 +539,7 @@ public class ClassWriter extends ClassFile {
Name fieldName(Symbol sym) {
if (scramble && (sym.flags() & PRIVATE) != 0 ||
scrambleAll && (sym.flags() & (PROTECTED | PUBLIC)) == 0)
return names.fromString("_$" + sym.name.index);
return names.fromString("_$" + sym.name.getIndex());
else
return sym.name;
}
@ -917,7 +914,7 @@ public class ClassWriter extends ClassFile {
databuf.appendChar(
inner.owner.kind == TYP ? pool.get(inner.owner) : 0);
databuf.appendChar(
inner.name.len != 0 ? pool.get(inner.name) : 0);
!inner.name.isEmpty() ? pool.get(inner.name) : 0);
databuf.appendChar(flags);
}
endAttr(alenIdx);
@ -1457,7 +1454,7 @@ public class ClassWriter extends ClassFile {
try {
writeClassFile(out, c);
if (verbose)
log.errWriter.println(log.getLocalizedString("verbose.wrote.file", outFile));
log.errWriter.println(Log.getLocalizedString("verbose.wrote.file", outFile));
out.close();
out = null;
} finally {

6
langtools/src/share/classes/com/sun/tools/javac/jvm/Code.java
View file

@ -52,16 +52,16 @@ public class Code {
public enum StackMapFormat {
NONE,
CLDC {
Name getAttributeName(Name.Table names) {
Name getAttributeName(Names names) {
return names.StackMap;
}
},
JSR202 {
Name getAttributeName(Name.Table names) {
Name getAttributeName(Names names) {
return names.StackMapTable;
}
};
Name getAttributeName(Name.Table names) {
Name getAttributeName(Names names) {
return names.empty;
}
}

6
langtools/src/share/classes/com/sun/tools/javac/jvm/Gen.java
View file

@ -61,7 +61,7 @@ public class Gen extends JCTree.Visitor {
private final Check chk;
private final Resolve rs;
private final TreeMaker make;
private final Name.Table names;
private final Names names;
private final Target target;
private final Type stringBufferType;
private final Map<Type,Symbol> stringBufferAppend;
@ -92,7 +92,7 @@ public class Gen extends JCTree.Visitor {
protected Gen(Context context) {
context.put(genKey, this);
names = Name.Table.instance(context);
names = Names.instance(context);
log = Log.instance(context);
syms = Symtab.instance(context);
chk = Check.instance(context);
@ -365,7 +365,7 @@ public class Gen extends JCTree.Visitor {
private boolean isOddAccessName(Name name) {
return
name.startsWith(accessDollar) &&
(name.byteAt(name.len - 1) & 1) == 1;
(name.getByteAt(name.getByteLength() - 1) & 1) == 1;
}
/* ************************************************************************

6
langtools/src/share/classes/com/sun/tools/javac/main/JavaCompiler.java
View file

@ -236,7 +236,7 @@ public class JavaCompiler implements ClassReader.SourceCompleter {
/** The name table.
*/
protected Name.Table names;
protected Names names;
/** The attributor.
*/
@ -310,7 +310,7 @@ public class JavaCompiler implements ClassReader.SourceCompleter {
if (context.get(JavaFileManager.class) == null)
JavacFileManager.preRegister(context);
names = Name.Table.instance(context);
names = Names.instance(context);
log = Log.instance(context);
diagFactory = JCDiagnostic.Factory.instance(context);
reader = ClassReader.instance(context);
@ -1411,7 +1411,7 @@ public class JavaCompiler implements ClassReader.SourceCompleter {
close(true);
}
private void close(boolean disposeNames) {
public void close(boolean disposeNames) {
rootClasses = null;
reader = null;
make = null;

2
langtools/src/share/classes/com/sun/tools/javac/model/AnnotationProxyMaker.java
View file

@ -181,7 +181,7 @@ public class AnnotationProxyMaker {
public void visitArray(Attribute.Array a) {
Name elemName = ((ArrayType) a.type).elemtype.tsym.name;
if (elemName == elemName.table.java_lang_Class) { // Class[]
if (elemName == elemName.table.names.java_lang_Class) { // Class[]
// Construct a proxy for a MirroredTypesException
List<TypeMirror> elems = List.nil();
for (Attribute value : a.values) {

13
langtools/src/share/classes/com/sun/tools/javac/model/JavacElements.java
View file

@ -39,15 +39,14 @@ import com.sun.tools.javac.code.TypeTags;
import com.sun.tools.javac.comp.AttrContext;
import com.sun.tools.javac.comp.Enter;
import com.sun.tools.javac.comp.Env;
import com.sun.tools.javac.jvm.ClassReader;
import com.sun.tools.javac.main.JavaCompiler;
import com.sun.tools.javac.processing.PrintingProcessor;
import com.sun.tools.javac.tree.JCTree;
import com.sun.tools.javac.tree.JCTree.*;
import com.sun.tools.javac.tree.TreeInfo;
import com.sun.tools.javac.tree.TreeScanner;
import com.sun.tools.javac.util.Name;
import com.sun.tools.javac.util.*;
import com.sun.tools.javac.util.Name;
import static javax.lang.model.util.ElementFilter.methodsIn;
@ -63,10 +62,9 @@ public class JavacElements implements Elements {
private JavaCompiler javaCompiler;
private Symtab syms;
private Name.Table names;
private Names names;
private Types types;
private Enter enter;
private ClassReader reader;
private static final Context.Key<JavacElements> KEY =
new Context.Key<JavacElements>();
@ -96,10 +94,9 @@ public class JavacElements implements Elements {
public void setContext(Context context) {
javaCompiler = JavaCompiler.instance(context);
syms = Symtab.instance(context);
names = Name.Table.instance(context);
names = Names.instance(context);
types = Types.instance(context);
enter = Enter.instance(context);
reader = ClassReader.instance(context);
}
@ -126,7 +123,7 @@ public class JavacElements implements Elements {
Class<A> annoType) {
boolean inherited = annoType.isAnnotationPresent(Inherited.class);
A result = null;
while (annotated.name != annotated.name.table.java_lang_Object) {
while (annotated.name != annotated.name.table.names.java_lang_Object) {
result = getAnnotation((Symbol)annotated, annoType);
if (result != null || !inherited)
break;
@ -568,7 +565,7 @@ public class JavacElements implements Elements {
}
public Name getName(CharSequence cs) {
return Name.fromString(names, cs.toString());
return names.fromString(cs.toString());
}
/**

4
langtools/src/share/classes/com/sun/tools/javac/parser/JavacParser.java
View file

@ -73,7 +73,7 @@ public class JavacParser implements Parser {
private Source source;
/** The name table. */
private Name.Table names;
private Names names;
/** Construct a parser from a given scanner, tree factory and log.
*/
@ -549,7 +549,7 @@ public class JavacParser implements Parser {
String strval(Name prefix) {
String s = S.stringVal();
return (prefix.len == 0) ? s : prefix + s;
return prefix.isEmpty() ? s : prefix + s;
}
/** terms can be either expressions or types.

11
langtools/src/share/classes/com/sun/tools/javac/parser/Keywords.java
View file

@ -28,6 +28,7 @@ package com.sun.tools.javac.parser;
import com.sun.tools.javac.util.Context;
import com.sun.tools.javac.util.Log;
import com.sun.tools.javac.util.Name;
import com.sun.tools.javac.util.Names;
import static com.sun.tools.javac.parser.Token.*;
@ -51,12 +52,12 @@ public class Keywords {
}
private final Log log;
private final Name.Table names;
private final Names names;
protected Keywords(Context context) {
context.put(keywordsKey, this);
log = Log.instance(context);
names = Name.Table.instance(context);
names = Names.instance(context);
for (Token t : Token.values()) {
if (t.name != null)
@ -69,13 +70,13 @@ public class Keywords {
for (int i = 0; i <= maxKey; i++) key[i] = IDENTIFIER;
for (Token t : Token.values()) {
if (t.name != null)
key[tokenName[t.ordinal()].index] = t;
key[tokenName[t.ordinal()].getIndex()] = t;
}
}
public Token key(Name name) {
return (name.index > maxKey) ? IDENTIFIER : key[name.index];
return (name.getIndex() > maxKey) ? IDENTIFIER : key[name.getIndex()];
}
/**
@ -94,6 +95,6 @@ public class Keywords {
private void enterKeyword(String s, Token token) {
Name n = names.fromString(s);
tokenName[token.ordinal()] = n;
if (n.index > maxKey) maxKey = n.index;
if (n.getIndex() > maxKey) maxKey = n.getIndex();
}
}

6
langtools/src/share/classes/com/sun/tools/javac/parser/ParserFactory.java
View file

@ -29,7 +29,7 @@ import com.sun.tools.javac.code.Source;
import com.sun.tools.javac.tree.TreeMaker;
import com.sun.tools.javac.util.Context;
import com.sun.tools.javac.util.Log;
import com.sun.tools.javac.util.Name;
import com.sun.tools.javac.util.Names;
import com.sun.tools.javac.util.Options;
/**
@ -52,7 +52,7 @@ public class ParserFactory {
final Log log;
final Keywords keywords;
final Source source;
final Name.Table names;
final Names names;
final Options options;
final Scanner.Factory scannerFactory;
@ -61,7 +61,7 @@ public class ParserFactory {
context.put(parserFactoryKey, this);
this.F = TreeMaker.instance(context);
this.log = Log.instance(context);
this.names = Name.Table.instance(context);
this.names = Names.instance(context);
this.keywords = Keywords.instance(context);
this.source = Source.instance(context);
this.options = Options.instance(context);

6
langtools/src/share/classes/com/sun/tools/javac/parser/Scanner.java
View file

@ -62,7 +62,7 @@ public class Scanner implements Lexer {
}
final Log log;
final Name.Table names;
final Names names;
final Source source;
final Keywords keywords;
@ -70,7 +70,7 @@ public class Scanner implements Lexer {
protected Factory(Context context) {
context.put(scannerFactoryKey, this);
this.log = Log.instance(context);
this.names = Name.Table.instance(context);
this.names = Names.instance(context);
this.source = Source.instance(context);
this.keywords = Keywords.instance(context);
}
@ -155,7 +155,7 @@ public class Scanner implements Lexer {
private final Log log;
/** The name table. */
private final Name.Table names;
private final Names names;
/** The keyword table. */
private final Keywords keywords;

17
langtools/src/share/classes/com/sun/tools/javac/processing/JavacProcessingEnvironment.java
View file

@ -70,6 +70,7 @@ import com.sun.tools.javac.util.List;
import com.sun.tools.javac.util.ListBuffer;
import com.sun.tools.javac.util.Log;
import com.sun.tools.javac.util.Name;
import com.sun.tools.javac.util.Names;
import com.sun.tools.javac.util.Options;
import static javax.tools.StandardLocation.*;
@ -831,7 +832,7 @@ public class JavacProcessingEnvironment implements ProcessingEnvironment, Closea
topLevelClasses = List.nil();
packageInfoFiles = List.nil();
compiler.close();
compiler.close(false);
currentContext = contextForNextRound(currentContext, true);
JavaFileManager fileManager = currentContext.get(JavaFileManager.class);
@ -879,7 +880,7 @@ public class JavacProcessingEnvironment implements ProcessingEnvironment, Closea
}
runLastRound(xout, roundNumber, errorStatus, taskListener);
compiler.close();
compiler.close(false);
currentContext = contextForNextRound(currentContext, true);
compiler = JavaCompiler.instance(currentContext);
filer.newRound(currentContext, true);
@ -913,7 +914,7 @@ public class JavacProcessingEnvironment implements ProcessingEnvironment, Closea
} else if (procOnly) {
compiler.todo.clear();
} else { // Final compilation
compiler.close();
compiler.close(false);
currentContext = contextForNextRound(currentContext, true);
compiler = JavaCompiler.instance(currentContext);
@ -987,7 +988,7 @@ public class JavacProcessingEnvironment implements ProcessingEnvironment, Closea
private ListBuffer<ClassSymbol> enterNewClassFiles(Context currentContext) {
ClassReader reader = ClassReader.instance(currentContext);
Name.Table names = Name.Table.instance(currentContext);
Names names = Names.instance(currentContext);
ListBuffer<ClassSymbol> list = new ListBuffer<ClassSymbol>();
for (Map.Entry<String,JavaFileObject> entry : filer.getGeneratedClasses().entrySet()) {
@ -1047,9 +1048,9 @@ public class JavacProcessingEnvironment implements ProcessingEnvironment, Closea
next.put(Log.outKey, out);
if (shareNames) {
Name.Table names = Name.Table.instance(context);
Names names = Names.instance(context);
assert names != null;
next.put(Name.Table.namesKey, names);
next.put(Names.namesKey, names);
}
DiagnosticListener dl = context.get(DiagnosticListener.class);
@ -1067,9 +1068,9 @@ public class JavacProcessingEnvironment implements ProcessingEnvironment, Closea
((JavacFileManager)jfm).setContext(next);
}
Name.Table names = Name.Table.instance(context);
Names names = Names.instance(context);
assert names != null;
next.put(Name.Table.namesKey, names);
next.put(Names.namesKey, names);
Keywords keywords = Keywords.instance(context);
assert(keywords != null);

10
langtools/src/share/classes/com/sun/tools/javac/tree/Pretty.java
View file

@ -336,7 +336,7 @@ public class Pretty extends JCTree.Visitor {
if (l.head.getTag() == JCTree.IMPORT) {
JCImport imp = (JCImport)l.head;
Name name = TreeInfo.name(imp.qualid);
if (name == name.table.asterisk ||
if (name == name.table.names.asterisk ||
cdef == null ||
isUsed(TreeInfo.symbol(imp.qualid), cdef)) {
if (firstImport) {
@ -439,14 +439,14 @@ public class Pretty extends JCTree.Visitor {
public void visitMethodDef(JCMethodDecl tree) {
try {
// when producing source output, omit anonymous constructors
if (tree.name == tree.name.table.init &&
if (tree.name == tree.name.table.names.init &&
enclClassName == null &&
sourceOutput) return;
println(); align();
printDocComment(tree);
printExpr(tree.mods);
printTypeParameters(tree.typarams);
if (tree.name == tree.name.table.init) {
if (tree.name == tree.name.table.names.init) {
print(enclClassName != null ? enclClassName : tree.name);
} else {
printExpr(tree.restype);
@ -835,8 +835,8 @@ public class Pretty extends JCTree.Visitor {
Name enclClassNamePrev = enclClassName;
enclClassName =
tree.def.name != null ? tree.def.name :
tree.type != null && tree.type.tsym.name != tree.type.tsym.name.table.empty ? tree.type.tsym.name :
null;
tree.type != null && tree.type.tsym.name != tree.type.tsym.name.table.names.empty
? tree.type.tsym.name : null;
if ((tree.def.mods.flags & Flags.ENUM) != 0) print("/*enum*/");
printBlock(tree.def.defs);
enclClassName = enclClassNamePrev;

14
langtools/src/share/classes/com/sun/tools/javac/tree/TreeInfo.java
View file

@ -61,7 +61,7 @@ public class TreeInfo {
private TreeInfo(Context context) {
context.put(treeInfoKey, this);
Name.Table names = Name.Table.instance(context);
Names names = Names.instance(context);
opname[JCTree.POS - JCTree.POS] = names.fromString("+");
opname[JCTree.NEG - JCTree.POS] = names.hyphen;
opname[JCTree.NOT - JCTree.POS] = names.fromString("!");
@ -104,7 +104,7 @@ public class TreeInfo {
public static boolean isConstructor(JCTree tree) {
if (tree.getTag() == JCTree.METHODDEF) {
Name name = ((JCMethodDecl) tree).name;
return name == name.table.init;
return name == name.table.names.init;
} else {
return false;
}
@ -130,7 +130,7 @@ public class TreeInfo {
if (select.sym != null &&
(select.sym.flags() & SYNTHETIC) != 0) {
Name selected = name(select.selected);
if (selected != null && selected == selected.table._this)
if (selected != null && selected == selected.table.names._this)
return true;
}
}
@ -157,7 +157,7 @@ public class TreeInfo {
public static boolean isSelfCall(JCTree tree) {
Name name = calledMethodName(tree);
if (name != null) {
Name.Table names = name.table;
Names names = name.table.names;
return name==names._this || name==names._super;
} else {
return false;
@ -169,7 +169,7 @@ public class TreeInfo {
public static boolean isSuperCall(JCTree tree) {
Name name = calledMethodName(tree);
if (name != null) {
Name.Table names = name.table;
Names names = name.table.names;
return name==names._super;
} else {
return false;
@ -183,14 +183,14 @@ public class TreeInfo {
JCMethodInvocation app = firstConstructorCall(tree);
if (app == null) return false;
Name meth = name(app.meth);
return meth == null || meth != meth.table._this;
return meth == null || meth != meth.table.names._this;
}
/** Return the first call in a constructor definition. */
public static JCMethodInvocation firstConstructorCall(JCTree tree) {
if (tree.getTag() != JCTree.METHODDEF) return null;
JCMethodDecl md = (JCMethodDecl) tree;
Name.Table names = md.name.table;
Names names = md.name.table.names;
if (md.name != names.init) return null;
if (md.body == null) return null;
List<JCStatement> stats = md.body.stats;

6
langtools/src/share/classes/com/sun/tools/javac/tree/TreeMaker.java
View file

@ -67,7 +67,7 @@ public class TreeMaker implements JCTree.Factory {
public JCCompilationUnit toplevel;
/** The current name table. */
Name.Table names;
Names names;
Types types;
@ -80,14 +80,14 @@ public class TreeMaker implements JCTree.Factory {
context.put(treeMakerKey, this);
this.pos = Position.NOPOS;
this.toplevel = null;
this.names = Name.Table.instance(context);
this.names = Names.instance(context);
this.syms = Symtab.instance(context);
this.types = Types.instance(context);
}
/** Create a tree maker with a given toplevel and FIRSTPOS as initial position.
*/
TreeMaker(JCCompilationUnit toplevel, Name.Table names, Types types, Symtab syms) {
TreeMaker(JCCompilationUnit toplevel, Names names, Types types, Symtab syms) {
this.pos = Position.FIRSTPOS;
this.toplevel = toplevel;
this.names = names;

4
langtools/src/share/classes/com/sun/tools/javac/util/ByteBuffer.java
View file

@ -150,7 +150,7 @@ public class ByteBuffer {
/** Append a name.
*/
public void appendName(Name name) {
appendBytes(name.table.names, name.index, name.len);
appendBytes(name.getByteArray(), name.getByteOffset(), name.getByteLength());
}
/** Reset to zero length.
@ -161,7 +161,7 @@ public class ByteBuffer {
/** Convert contents to name.
*/
public Name toName(Name.Table names) {
public Name toName(Names names) {
return names.fromUtf(elems, 0, length);
}
}

2
langtools/src/share/classes/com/sun/tools/javac/util/Convert.java
View file

@ -289,7 +289,7 @@ public class Convert {
*/
public static Name shortName(Name classname) {
return classname.subName(
classname.lastIndexOf((byte)'.') + 1, classname.len);
classname.lastIndexOf((byte)'.') + 1, classname.getByteLength());
}
public static String shortName(String classname) {

753
langtools/src/share/classes/com/sun/tools/javac/util/Name.java
View file

@ -25,246 +25,111 @@
package com.sun.tools.javac.util;
import java.lang.ref.SoftReference;
/** An abstraction for internal compiler strings. For efficiency reasons,
* GJC uses hashed strings that are stored in a common large buffer.
*
* <p>Names represent unique hashable strings. Two names are equal
* if their indices are equal. Utf8 representation is used
* for storing names internally.
/** An abstraction for internal compiler strings. They are stored in
* Utf8 format. Names are stored in a Name.Table, and are unique within
* that table.
*
* <p><b>This is NOT part of any API supported by Sun Microsystems. 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 class Name implements javax.lang.model.element.Name {
public abstract class Name implements javax.lang.model.element.Name {
/** The table structure where the name is stored
public final Table table;
protected Name(Table table) {
this.table = table;
}
/**
* @inheritDoc
*/
public Table table;
/** The index where the bytes of this name are stored in the global name
* buffer `names'.
*/
public int index;
/** The number of bytes in this name.
*/
public int len;
/** The next name occupying the same hash bucket.
*/
Name next;
/** The hashcode of a name.
*/
private static int hashValue(byte cs[], int start, int len) {
int h = 0;
int off = start;
for (int i = 0; i < len; i++) {
h = (h << 5) - h + cs[off++];
}
return h;
public boolean contentEquals(CharSequence cs) {
return toString().equals(cs.toString());
}
/** Is (the utf8 representation of) name equal to
* cs[start..start+len-1]?
*/
private static boolean equals(byte[] names, int index,
byte cs[], int start, int len) {
int i = 0;
while (i < len && names[index + i] == cs[start + i]) i++;
return i == len;
}
/** Create a name from the bytes in cs[start..start+len-1].
* Assume that bytes are in utf8 format.
*/
public static Name fromUtf(Table table, byte cs[], int start, int len) {
int h = hashValue(cs, start, len) & table.hashMask;
Name n = table.hashes[h];
byte[] names = table.names;
while (n != null &&
(n.len != len || !equals(names, n.index, cs, start, len)))
n = n.next;
if (n == null) {
int nc = table.nc;
while (nc + len > names.length) {
// System.err.println("doubling name buffer of length + " + names.length + " to fit " + len + " bytes");//DEBUG
byte[] newnames = new byte[names.length * 2];
System.arraycopy(names, 0, newnames, 0, names.length);
names = table.names = newnames;
}
System.arraycopy(cs, start, names, nc, len);
n = new Name();
n.table = table;
n.index = nc;
n.len = len;
n.next = table.hashes[h];
table.hashes[h] = n;
table.nc = nc + len;
if (len == 0) table.nc++;
}
return n;
}
/** Create a name from the bytes in array cs.
* Assume that bytes are in utf8 format.
*/
public static Name fromUtf(Table table, byte cs[]) {
return fromUtf(table, cs, 0, cs.length);
}
/** Create a name from the characters in cs[start..start+len-1].
*/
public static Name fromChars(Table table, char[] cs, int start, int len) {
int nc = table.nc;
byte[] names = table.names;
while (nc + len * 3 >= names.length) {
// System.err.println("doubling name buffer of length " + names.length + " to fit " + len + " chars");//DEBUG
byte[] newnames = new byte[names.length * 2];
System.arraycopy(names, 0, newnames, 0, names.length);
names = table.names = newnames;
}
int nbytes =
Convert.chars2utf(cs, start, names, nc, len) - nc;
int h = hashValue(names, nc, nbytes) & table.hashMask;
Name n = table.hashes[h];
while (n != null &&
(n.len != nbytes ||
!equals(names, n.index, names, nc, nbytes)))
n = n.next;
if (n == null) {
n = new Name();
n.table = table;
n.index = nc;
n.len = nbytes;
n.next = table.hashes[h];
table.hashes[h] = n;
table.nc = nc + nbytes;
if (nbytes == 0) table.nc++;
}
return n;
}
/** Create a name from the characters in string s.
*/
public static Name fromString(Table table, String s) {
char[] cs = s.toCharArray();
return fromChars(table, cs, 0, cs.length);
}
/** Create a name from the characters in char sequence s.
*/
public static Name fromString(Table table, CharSequence s) {
return fromString(table, s.toString());
}
/** Return the Utf8 representation of this name.
*/
public byte[] toUtf() {
byte[] bs = new byte[len];
System.arraycopy(table.names, index, bs, 0, len);
return bs;
}
/** Return the string representation of this name.
*/
public String toString() {
return Convert.utf2string(table.names, index, len);
}
/** Copy all bytes of this name to buffer cs, starting at start.
*/
public void getBytes(byte cs[], int start) {
System.arraycopy(table.names, index, cs, start, len);
}
/** Return the hash value of this name.
*/
public int hashCode() {
return index;
}
/** Is this name equal to other?
*/
public boolean equals(Object other) {
if (other instanceof Name)
return
table == ((Name)other).table && index == ((Name)other).index;
else return false;
}
/** Compare this name to other name, yielding -1 if smaller, 0 if equal,
* 1 if greater.
*/
public boolean less(Name that) {
int i = 0;
while (i < this.len && i < that.len) {
byte thisb = this.table.names[this.index + i];
byte thatb = that.table.names[that.index + i];
if (thisb < thatb) return true;
else if (thisb > thatb) return false;
else i++;
}
return this.len < that.len;
}
/** Returns the length of this name.
/**
* @inheritDoc
*/
public int length() {
return toString().length();
}
/** Returns i'th byte of this name.
/**
* @inheritDoc
*/
public byte byteAt(int i) {
return table.names[index + i];
public char charAt(int index) {
return toString().charAt(index);
}
/** Returns first occurrence of byte b in this name, len if not found.
/**
* @inheritDoc
*/
public int indexOf(byte b) {
byte[] names = table.names;
int i = 0;
while (i < len && names[index + i] != b) i++;
return i;
public CharSequence subSequence(int start, int end) {
return toString().subSequence(start, end);
}
/** Return the concatenation of this name and name `n'.
*/
public Name append(Name n) {
int len = getByteLength();
byte[] bs = new byte[len + n.getByteLength()];
getBytes(bs, 0);
n.getBytes(bs, len);
return table.fromUtf(bs, 0, bs.length);
}
/** Return the concatenation of this name, the given ASCII
* character, and name `n'.
*/
public Name append(char c, Name n) {
int len = getByteLength();
byte[] bs = new byte[len + 1 + n.getByteLength()];
getBytes(bs, 0);
bs[len] = (byte) c;
n.getBytes(bs, len+1);
return table.fromUtf(bs, 0, bs.length);
}
/** An arbitrary but consistent complete order among all Names.
*/
public int compareTo(Name other) {
return other.getIndex() - this.getIndex();
}
/** Return true if this is the empty name.
*/
public boolean isEmpty() {
return getByteLength() == 0;
}
/** Returns last occurrence of byte b in this name, -1 if not found.
*/
public int lastIndexOf(byte b) {
byte[] names = table.names;
int i = len - 1;
while (i >= 0 && names[index + i] != b) i--;
byte[] bytes = getByteArray();
int offset = getByteOffset();
int i = getByteLength() - 1;
while (i >= 0 && bytes[offset + i] != b) i--;
return i;
}
/** Does this name start with prefix?
*/
public boolean startsWith(Name prefix) {
int i = 0;
while (i < prefix.len &&
i < len &&
table.names[index + i] == prefix.table.names[prefix.index + i])
i++;
return i == prefix.len;
}
byte[] thisBytes = this.getByteArray();
int thisOffset = this.getByteOffset();
int thisLength = this.getByteLength();
byte[] prefixBytes = prefix.getByteArray();
int prefixOffset = prefix.getByteOffset();
int prefixLength = prefix.getByteLength();
/** Does this name end with suffix?
*/
public boolean endsWith(Name suffix) {
int i = len - 1;
int j = suffix.len - 1;
while (j >= 0 && i >= 0 &&
table.names[index + i] == suffix.table.names[suffix.index + j]) {
i--; j--;
}
return j < 0;
int i = 0;
while (i < prefixLength &&
i < thisLength &&
thisBytes[thisOffset + i] == prefixBytes[prefixOffset + i])
i++;
return i == prefixLength;
}
/** Returns the sub-name starting at position start, up to and
@ -272,382 +137,110 @@ public class Name implements javax.lang.model.element.Name {
*/
public Name subName(int start, int end) {
if (end < start) end = start;
return fromUtf(table, table.names, index + start, end - start);
return table.fromUtf(getByteArray(), getByteOffset() + start, end - start);
}
/** Replace all `from' bytes in this name with `to' bytes.
/** Return the string representation of this name.
*/
public Name replace(byte from, byte to) {
byte[] names = table.names;
public String toString() {
return Convert.utf2string(getByteArray(), getByteOffset(), getByteLength());
}
/** Return the Utf8 representation of this name.
*/
public byte[] toUtf() {
byte[] bs = new byte[getByteLength()];
getBytes(bs, 0);
return bs;
}
/* Get a "reasonably small" value that uniquely identifies this name
* within its name table.
*/
public abstract int getIndex();
/** Get the length (in bytes) of this name.
*/
public abstract int getByteLength();
/** Returns i'th byte of this name.
*/
public abstract byte getByteAt(int i);
/** Copy all bytes of this name to buffer cs, starting at start.
*/
public void getBytes(byte cs[], int start) {
System.arraycopy(getByteArray(), getByteOffset(), cs, start, getByteLength());
}
/** Get the underlying byte array for this name. The contents of the
* array must not be modified.
*/
public abstract byte[] getByteArray();
/** Get the start offset of this name within its byte array.
*/
public abstract int getByteOffset();
/** An abstraction for the hash table used to create unique Name instances.
*/
public static abstract class Table {
/** Standard name table.
*/
public final Names names;
Table(Names names) {
this.names = names;
}
/** Get the name from the characters in cs[start..start+len-1].
*/
public abstract Name fromChars(char[] cs, int start, int len);
/** Get the name for the characters in string s.
*/
public Name fromString(String s) {
char[] cs = s.toCharArray();
return fromChars(cs, 0, cs.length);
}
/** Get the name for the bytes in array cs.
* Assume that bytes are in utf8 format.
*/
public Name fromUtf(byte[] cs) {
return fromUtf(cs, 0, cs.length);
}
/** get the name for the bytes in cs[start..start+len-1].
* Assume that bytes are in utf8 format.
*/
public abstract Name fromUtf(byte[] cs, int start, int len);
/** Release any resources used by this table.
*/
public abstract void dispose();
/** The hashcode of a name.
*/
protected static int hashValue(byte bytes[], int offset, int length) {
int h = 0;
int off = offset;
for (int i = 0; i < length; i++) {
h = (h << 5) - h + bytes[off++];
}
return h;
}
/** Compare two subarrays
*/
protected static boolean equals(byte[] bytes1, int offset1,
byte[] bytes2, int offset2, int length) {
int i = 0;
while (i < len) {
if (names[index + i] == from) {
byte[] bs = new byte[len];
System.arraycopy(names, index, bs, 0, i);
bs[i] = to;
i++;
while (i < len) {
byte b = names[index + i];
bs[i] = b == from ? to : b;
while (i < length && bytes1[offset1 + i] == bytes2[offset2 + i]) {
i++;
}
return fromUtf(table, bs, 0, len);
}
i++;
}
return this;
}
/** Return the concatenation of this name and name `n'.
*/
public Name append(Name n) {
byte[] bs = new byte[len + n.len];
getBytes(bs, 0);
n.getBytes(bs, len);
return fromUtf(table, bs, 0, bs.length);
}
/** Return the concatenation of this name, the given ASCII
* character, and name `n'.
*/
public Name append(char c, Name n) {
byte[] bs = new byte[len + n.len + 1];
getBytes(bs, 0);
bs[len] = (byte)c;
n.getBytes(bs, len+1);
return fromUtf(table, bs, 0, bs.length);
}
/** An arbitrary but consistent complete order among all Names.
*/
public int compareTo(Name other) {
return other.index - this.index;
}
/** Return the concatenation of all names in the array `ns'.
*/
public static Name concat(Table table, Name ns[]) {
int len = 0;
for (int i = 0; i < ns.length; i++)
len = len + ns[i].len;
byte[] bs = new byte[len];
len = 0;
for (int i = 0; i < ns.length; i++) {
ns[i].getBytes(bs, len);
len = len + ns[i].len;
}
return fromUtf(table, bs, 0, len);
}
public char charAt(int index) {
return toString().charAt(index);
}
public CharSequence subSequence(int start, int end) {
return toString().subSequence(start, end);
}
public boolean contentEquals(CharSequence cs) {
return this.toString().equals(cs.toString());
}
public static class Table {
// maintain a freelist of recently used name tables for reuse.
private static List<SoftReference<Table>> freelist = List.nil();
static private synchronized Table make() {
while (freelist.nonEmpty()) {
Table t = freelist.head.get();
freelist = freelist.tail;
if (t != null) return t;
}
return new Table();
}
static private synchronized void dispose(Table t) {
freelist = freelist.prepend(new SoftReference<Table>(t));
}
public void dispose() {
dispose(this);
}
public static final Context.Key<Table> namesKey =
new Context.Key<Table>();
public static Table instance(Context context) {
Table instance = context.get(namesKey);
if (instance == null) {
instance = make();
context.put(namesKey, instance);
}
return instance;
}
/** The hash table for names.
*/
private Name[] hashes;
/** The array holding all encountered names.
*/
public byte[] names;
/** The mask to be used for hashing
*/
private int hashMask;
/** The number of filled bytes in `names'.
*/
private int nc = 0;
/** Allocator
* @param hashSize the (constant) size to be used for the hash table
* needs to be a power of two.
* @param nameSize the initial size of the name table.
*/
public Table(int hashSize, int nameSize) {
hashMask = hashSize - 1;
hashes = new Name[hashSize];
names = new byte[nameSize];
slash = fromString("/");
hyphen = fromString("-");
T = fromString("T");
slashequals = fromString("/=");
deprecated = fromString("deprecated");
init = fromString("<init>");
clinit = fromString("<clinit>");
error = fromString("<error>");
any = fromString("<any>");
empty = fromString("");
one = fromString("1");
period = fromString(".");
comma = fromString(",");
semicolon = fromString(";");
asterisk = fromString("*");
_this = fromString("this");
_super = fromString("super");
_default = fromString("default");
_class = fromString("class");
java_lang = fromString("java.lang");
java_lang_Object = fromString("java.lang.Object");
java_lang_Class = fromString("java.lang.Class");
java_lang_Cloneable = fromString("java.lang.Cloneable");
java_io_Serializable = fromString("java.io.Serializable");
java_lang_Enum = fromString("java.lang.Enum");
package_info = fromString("package-info");
serialVersionUID = fromString("serialVersionUID");
ConstantValue = fromString("ConstantValue");
LineNumberTable = fromString("LineNumberTable");
LocalVariableTable = fromString("LocalVariableTable");
LocalVariableTypeTable = fromString("LocalVariableTypeTable");
CharacterRangeTable = fromString("CharacterRangeTable");
StackMap = fromString("StackMap");
StackMapTable = fromString("StackMapTable");
SourceID = fromString("SourceID");
CompilationID = fromString("CompilationID");
Code = fromString("Code");
Exceptions = fromString("Exceptions");
SourceFile = fromString("SourceFile");
InnerClasses = fromString("InnerClasses");
Synthetic = fromString("Synthetic");
Bridge= fromString("Bridge");
Deprecated = fromString("Deprecated");
Enum = fromString("Enum");
_name = fromString("name");
Signature = fromString("Signature");
Varargs = fromString("Varargs");
Annotation = fromString("Annotation");
RuntimeVisibleAnnotations = fromString("RuntimeVisibleAnnotations");
RuntimeInvisibleAnnotations = fromString("RuntimeInvisibleAnnotations");
RuntimeVisibleParameterAnnotations = fromString("RuntimeVisibleParameterAnnotations");
RuntimeInvisibleParameterAnnotations = fromString("RuntimeInvisibleParameterAnnotations");
Value = fromString("Value");
EnclosingMethod = fromString("EnclosingMethod");
desiredAssertionStatus = fromString("desiredAssertionStatus");
append = fromString("append");
family = fromString("family");
forName = fromString("forName");
toString = fromString("toString");
length = fromString("length");
valueOf = fromString("valueOf");
value = fromString("value");
getMessage = fromString("getMessage");
getClass = fromString("getClass");
TYPE = fromString("TYPE");
FIELD = fromString("FIELD");
METHOD = fromString("METHOD");
PARAMETER = fromString("PARAMETER");
CONSTRUCTOR = fromString("CONSTRUCTOR");
LOCAL_VARIABLE = fromString("LOCAL_VARIABLE");
ANNOTATION_TYPE = fromString("ANNOTATION_TYPE");
PACKAGE = fromString("PACKAGE");
SOURCE = fromString("SOURCE");
CLASS = fromString("CLASS");
RUNTIME = fromString("RUNTIME");
Array = fromString("Array");
Method = fromString("Method");
Bound = fromString("Bound");
clone = fromString("clone");
getComponentType = fromString("getComponentType");
getClassLoader = fromString("getClassLoader");
initCause = fromString("initCause");
values = fromString("values");
iterator = fromString("iterator");
hasNext = fromString("hasNext");
next = fromString("next");
AnnotationDefault = fromString("AnnotationDefault");
ordinal = fromString("ordinal");
equals = fromString("equals");
hashCode = fromString("hashCode");
compareTo = fromString("compareTo");
getDeclaringClass = fromString("getDeclaringClass");
ex = fromString("ex");
finalize = fromString("finalize");
}
public Table() {
this(0x8000, 0x20000);
}
/** Create a name from the bytes in cs[start..start+len-1].
* Assume that bytes are in utf8 format.
*/
public Name fromUtf(byte cs[], int start, int len) {
return Name.fromUtf(this, cs, start, len);
}
/** Create a name from the bytes in array cs.
* Assume that bytes are in utf8 format.
*/
public Name fromUtf(byte cs[]) {
return Name.fromUtf(this, cs, 0, cs.length);
}
/** Create a name from the characters in cs[start..start+len-1].
*/
public Name fromChars(char[] cs, int start, int len) {
return Name.fromChars(this, cs, start, len);
}
/** Create a name from the characters in string s.
*/
public Name fromString(CharSequence s) {
return Name.fromString(this, s);
}
public final Name slash;
public final Name hyphen;
public final Name T;
public final Name slashequals;
public final Name deprecated;
public final Name init;
public final Name clinit;
public final Name error;
public final Name any;
public final Name empty;
public final Name one;
public final Name period;
public final Name comma;
public final Name semicolon;
public final Name asterisk;
public final Name _this;
public final Name _super;
public final Name _default;
public final Name _class;
public final Name java_lang;
public final Name java_lang_Object;
public final Name java_lang_Class;
public final Name java_lang_Cloneable;
public final Name java_io_Serializable;
public final Name serialVersionUID;
public final Name java_lang_Enum;
public final Name package_info;
public final Name ConstantValue;
public final Name LineNumberTable;
public final Name LocalVariableTable;
public final Name LocalVariableTypeTable;
public final Name CharacterRangeTable;
public final Name StackMap;
public final Name StackMapTable;
public final Name SourceID;
public final Name CompilationID;
public final Name Code;
public final Name Exceptions;
public final Name SourceFile;
public final Name InnerClasses;
public final Name Synthetic;
public final Name Bridge;
public final Name Deprecated;
public final Name Enum;
public final Name _name;
public final Name Signature;
public final Name Varargs;
public final Name Annotation;
public final Name RuntimeVisibleAnnotations;
public final Name RuntimeInvisibleAnnotations;
public final Name RuntimeVisibleParameterAnnotations;
public final Name RuntimeInvisibleParameterAnnotations;
public final Name Value;
public final Name EnclosingMethod;
public final Name desiredAssertionStatus;
public final Name append;
public final Name family;
public final Name forName;
public final Name toString;
public final Name length;
public final Name valueOf;
public final Name value;
public final Name getMessage;
public final Name getClass;
public final Name TYPE;
public final Name FIELD;
public final Name METHOD;
public final Name PARAMETER;
public final Name CONSTRUCTOR;
public final Name LOCAL_VARIABLE;
public final Name ANNOTATION_TYPE;
public final Name PACKAGE;
public final Name SOURCE;
public final Name CLASS;
public final Name RUNTIME;
public final Name Array;
public final Name Method;
public final Name Bound;
public final Name clone;
public final Name getComponentType;
public final Name getClassLoader;
public final Name initCause;
public final Name values;
public final Name iterator;
public final Name hasNext;
public final Name next;
public final Name AnnotationDefault;
public final Name ordinal;
public final Name equals;
public final Name hashCode;
public final Name compareTo;
public final Name getDeclaringClass;
public final Name ex;
public final Name finalize;
}
public boolean isEmpty() {
return len == 0;
return i == length;
}
}
}

281
langtools/src/share/classes/com/sun/tools/javac/util/Names.java Normal file
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@ -0,0 +1,281 @@
/*
* Copyright 1999-2006 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.util;
/**
* Access to the compiler's name table. STandard names are defined,
* as well as methods to create new names.
*
* <p><b>This is NOT part of any API supported by Sun Microsystems. 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 class Names {
public static final Context.Key<Names> namesKey = new Context.Key<Names>();
public static Names instance(Context context) {
Names instance = context.get(namesKey);
if (instance == null) {
instance = new Names(context);
context.put(namesKey, instance);
}
return instance;
}
public final Name slash;
public final Name hyphen;
public final Name T;
public final Name slashequals;
public final Name deprecated;
public final Name init;
public final Name clinit;
public final Name error;
public final Name any;
public final Name empty;
public final Name one;
public final Name period;
public final Name comma;
public final Name semicolon;
public final Name asterisk;
public final Name _this;
public final Name _super;
public final Name _default;
public final Name _class;
public final Name java_lang;
public final Name java_lang_Object;
public final Name java_lang_Class;
public final Name java_lang_Cloneable;
public final Name java_io_Serializable;
public final Name serialVersionUID;
public final Name java_lang_Enum;
public final Name package_info;
public final Name ConstantValue;
public final Name LineNumberTable;
public final Name LocalVariableTable;
public final Name LocalVariableTypeTable;
public final Name CharacterRangeTable;
public final Name StackMap;
public final Name StackMapTable;
public final Name SourceID;
public final Name CompilationID;
public final Name Code;
public final Name Exceptions;
public final Name SourceFile;
public final Name InnerClasses;
public final Name Synthetic;
public final Name Bridge;
public final Name Deprecated;
public final Name Enum;
public final Name _name;
public final Name Signature;
public final Name Varargs;
public final Name Annotation;
public final Name RuntimeVisibleAnnotations;
public final Name RuntimeInvisibleAnnotations;
public final Name RuntimeVisibleParameterAnnotations;
public final Name RuntimeInvisibleParameterAnnotations;
public final Name Value;
public final Name EnclosingMethod;
public final Name desiredAssertionStatus;
public final Name append;
public final Name family;
public final Name forName;
public final Name toString;
public final Name length;
public final Name valueOf;
public final Name value;
public final Name getMessage;
public final Name getClass;
public final Name TYPE;
public final Name FIELD;
public final Name METHOD;
public final Name PARAMETER;
public final Name CONSTRUCTOR;
public final Name LOCAL_VARIABLE;
public final Name ANNOTATION_TYPE;
public final Name PACKAGE;
public final Name SOURCE;
public final Name CLASS;
public final Name RUNTIME;
public final Name Array;
public final Name Method;
public final Name Bound;
public final Name clone;
public final Name getComponentType;
public final Name getClassLoader;
public final Name initCause;
public final Name values;
public final Name iterator;
public final Name hasNext;
public final Name next;
public final Name AnnotationDefault;
public final Name ordinal;
public final Name equals;
public final Name hashCode;
public final Name compareTo;
public final Name getDeclaringClass;
public final Name ex;
public final Name finalize;
public final Name.Table table;
public Names(Context context) {
Options options = Options.instance(context);
table = createTable(options);
slash = fromString("/");
hyphen = fromString("-");
T = fromString("T");
slashequals = fromString("/=");
deprecated = fromString("deprecated");
init = fromString("<init>");
clinit = fromString("<clinit>");
error = fromString("<error>");
any = fromString("<any>");
empty = fromString("");
one = fromString("1");
period = fromString(".");
comma = fromString(",");
semicolon = fromString(";");
asterisk = fromString("*");
_this = fromString("this");
_super = fromString("super");
_default = fromString("default");
_class = fromString("class");
java_lang = fromString("java.lang");
java_lang_Object = fromString("java.lang.Object");
java_lang_Class = fromString("java.lang.Class");
java_lang_Cloneable = fromString("java.lang.Cloneable");
java_io_Serializable = fromString("java.io.Serializable");
java_lang_Enum = fromString("java.lang.Enum");
package_info = fromString("package-info");
serialVersionUID = fromString("serialVersionUID");
ConstantValue = fromString("ConstantValue");
LineNumberTable = fromString("LineNumberTable");
LocalVariableTable = fromString("LocalVariableTable");
LocalVariableTypeTable = fromString("LocalVariableTypeTable");
CharacterRangeTable = fromString("CharacterRangeTable");
StackMap = fromString("StackMap");
StackMapTable = fromString("StackMapTable");
SourceID = fromString("SourceID");
CompilationID = fromString("CompilationID");
Code = fromString("Code");
Exceptions = fromString("Exceptions");
SourceFile = fromString("SourceFile");
InnerClasses = fromString("InnerClasses");
Synthetic = fromString("Synthetic");
Bridge = fromString("Bridge");
Deprecated = fromString("Deprecated");
Enum = fromString("Enum");
_name = fromString("name");
Signature = fromString("Signature");
Varargs = fromString("Varargs");
Annotation = fromString("Annotation");
RuntimeVisibleAnnotations = fromString("RuntimeVisibleAnnotations");
RuntimeInvisibleAnnotations = fromString("RuntimeInvisibleAnnotations");
RuntimeVisibleParameterAnnotations = fromString("RuntimeVisibleParameterAnnotations");
RuntimeInvisibleParameterAnnotations = fromString("RuntimeInvisibleParameterAnnotations");
Value = fromString("Value");
EnclosingMethod = fromString("EnclosingMethod");
desiredAssertionStatus = fromString("desiredAssertionStatus");
append = fromString("append");
family = fromString("family");
forName = fromString("forName");
toString = fromString("toString");
length = fromString("length");
valueOf = fromString("valueOf");
value = fromString("value");
getMessage = fromString("getMessage");
getClass = fromString("getClass");
TYPE = fromString("TYPE");
FIELD = fromString("FIELD");
METHOD = fromString("METHOD");
PARAMETER = fromString("PARAMETER");
CONSTRUCTOR = fromString("CONSTRUCTOR");
LOCAL_VARIABLE = fromString("LOCAL_VARIABLE");
ANNOTATION_TYPE = fromString("ANNOTATION_TYPE");
PACKAGE = fromString("PACKAGE");
SOURCE = fromString("SOURCE");
CLASS = fromString("CLASS");
RUNTIME = fromString("RUNTIME");
Array = fromString("Array");
Method = fromString("Method");
Bound = fromString("Bound");
clone = fromString("clone");
getComponentType = fromString("getComponentType");
getClassLoader = fromString("getClassLoader");
initCause = fromString("initCause");
values = fromString("values");
iterator = fromString("iterator");
hasNext = fromString("hasNext");
next = fromString("next");
AnnotationDefault = fromString("AnnotationDefault");
ordinal = fromString("ordinal");
equals = fromString("equals");
hashCode = fromString("hashCode");
compareTo = fromString("compareTo");
getDeclaringClass = fromString("getDeclaringClass");
ex = fromString("ex");
finalize = fromString("finalize");
}
protected Name.Table createTable(Options options) {
boolean useUnsharedTable = options.get("useUnsharedTable") != null;
if (useUnsharedTable)
return new UnsharedNameTable(this);
else
return new SharedNameTable(this);
}
public void dispose() {
table.dispose();
}
public Name fromChars(char[] cs, int start, int len) {
return table.fromChars(cs, start, len);
}
public Name fromString(String s) {
return table.fromString(s);
}
public Name fromUtf(byte[] cs) {
return table.fromUtf(cs);
}
public Name fromUtf(byte[] cs, int start, int len) {
return table.fromUtf(cs, start, len);
}
}

221
langtools/src/share/classes/com/sun/tools/javac/util/SharedNameTable.java Normal file
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@ -0,0 +1,221 @@
/*
* Copyright 1999-2006 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.util;
import java.lang.ref.SoftReference;
/**
* Implementation of Name.Table that stores all names in a single shared
* byte array, expanding it as needed. This avoids the overhead incurred
* by using an array of bytes for each name.
*
* <p><b>This is NOT part of any API supported by Sun Microsystems. 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 class SharedNameTable extends Name.Table {
// maintain a freelist of recently used name tables for reuse.
private static List<SoftReference<SharedNameTable>> freelist = List.nil();
static public synchronized SharedNameTable create(Names names) {
while (freelist.nonEmpty()) {
SharedNameTable t = freelist.head.get();
freelist = freelist.tail;
if (t != null) {
return t;
}
}
return new SharedNameTable(names);
}
static private synchronized void dispose(SharedNameTable t) {
freelist = freelist.prepend(new SoftReference<SharedNameTable>(t));
}
/** The hash table for names.
*/
private NameImpl[] hashes;
/** The shared byte array holding all encountered names.
*/
public byte[] bytes;
/** The mask to be used for hashing
*/
private int hashMask;
/** The number of filled bytes in `names'.
*/
private int nc = 0;
/** Allocator
* @param names The main name table
* @param hashSize the (constant) size to be used for the hash table
* needs to be a power of two.
* @param nameSize the initial size of the name table.
*/
public SharedNameTable(Names names, int hashSize, int nameSize) {
super(names);
hashMask = hashSize - 1;
hashes = new NameImpl[hashSize];
bytes = new byte[nameSize];
}
public SharedNameTable(Names names) {
this(names, 0x8000, 0x20000);
}
@Override
public Name fromChars(char[] cs, int start, int len) {
int nc = this.nc;
byte[] bytes = this.bytes;
while (nc + len * 3 >= bytes.length) {
// System.err.println("doubling name buffer of length " + names.length + " to fit " + len + " chars");//DEBUG
byte[] newnames = new byte[bytes.length * 2];
System.arraycopy(bytes, 0, newnames, 0, bytes.length);
bytes = this.bytes = newnames;
}
int nbytes = Convert.chars2utf(cs, start, bytes, nc, len) - nc;
int h = hashValue(bytes, nc, nbytes) & hashMask;
NameImpl n = hashes[h];
while (n != null &&
(n.getByteLength() != nbytes ||
!equals(bytes, n.index, bytes, nc, nbytes))) {
n = n.next;
}
if (n == null) {
n = new NameImpl(this);
n.index = nc;
n.length = nbytes;
n.next = hashes[h];
hashes[h] = n;
this.nc = nc + nbytes;
if (nbytes == 0) {
this.nc++;
}
}
return n;
}
@Override
public Name fromUtf(byte[] cs, int start, int len) {
int h = hashValue(cs, start, len) & hashMask;
NameImpl n = hashes[h];
byte[] names = this.bytes;
while (n != null &&
(n.getByteLength() != len || !equals(names, n.index, cs, start, len))) {
n = n.next;
}
if (n == null) {
int nc = this.nc;
while (nc + len > names.length) {
// System.err.println("doubling name buffer of length + " + names.length + " to fit " + len + " bytes");//DEBUG
byte[] newnames = new byte[names.length * 2];
System.arraycopy(names, 0, newnames, 0, names.length);
names = this.bytes = newnames;
}
System.arraycopy(cs, start, names, nc, len);
n = new NameImpl(this);
n.index = nc;
n.length = len;
n.next = hashes[h];
hashes[h] = n;
this.nc = nc + len;
if (len == 0) {
this.nc++;
}
}
return n;
}
@Override
public void dispose() {
dispose(this);
}
static class NameImpl extends Name {
/** The next name occupying the same hash bucket.
*/
NameImpl next;
/** The index where the bytes of this name are stored in the global name
* buffer `byte'.
*/
int index;
/** The number of bytes in this name.
*/
int length;
NameImpl(SharedNameTable table) {
super(table);
}
@Override
public int getIndex() {
return index;
}
@Override
public int getByteLength() {
return length;
}
@Override
public byte getByteAt(int i) {
return getByteArray()[index + i];
}
@Override
public byte[] getByteArray() {
return ((SharedNameTable) table).bytes;
}
@Override
public int getByteOffset() {
return index;
}
/** Return the hash value of this name.
*/
public int hashCode() {
return index;
}
/** Is this name equal to other?
*/
public boolean equals(Object other) {
if (other instanceof Name)
return
table == ((Name)other).table && index == ((Name) other).getIndex();
else return false;
}
}
}

185
langtools/src/share/classes/com/sun/tools/javac/util/UnsharedNameTable.java Normal file
View file

@ -0,0 +1,185 @@
/*
* Copyright 1999-2006 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.util;
import java.lang.ref.WeakReference;
/**
* Implementation of Name.Table that stores names in individual arrays
* using weak references. It is recommended for use when a single shared
* byte array is unsuitable.
*
* <p><b>This is NOT part of any API supported by Sun Microsystems. 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 class UnsharedNameTable extends Name.Table {
static public Name.Table create(Names names) {
return new UnsharedNameTable(names);
}
static class HashEntry extends WeakReference<NameImpl> {
HashEntry next;
HashEntry(NameImpl referent) {
super(referent);
}
}
/** The hash table for names.
*/
private HashEntry[] hashes = null;
/** The mask to be used for hashing
*/
private int hashMask;
/** Index counter for names in this table.
*/
public int index;
/** Allocator
* @param names The main name table
* @param hashSize the (constant) size to be used for the hash table
* needs to be a power of two.
*/
public UnsharedNameTable(Names names, int hashSize) {
super(names);
hashMask = hashSize - 1;
hashes = new HashEntry[hashSize];
}
public UnsharedNameTable(Names names) {
this(names, 0x8000);
}
@Override
public Name fromChars(char[] cs, int start, int len) {
byte[] name = new byte[len * 3];
int nbytes = Convert.chars2utf(cs, start, name, 0, len);
return fromUtf(name, 0, nbytes);
}
@Override
public Name fromUtf(byte[] cs, int start, int len) {
int h = hashValue(cs, start, len) & hashMask;
HashEntry element = hashes[h];
NameImpl n = null;
HashEntry previousNonNullTableEntry = null;
HashEntry firstTableEntry = element;
while (element != null) {
if (element == null) {
break;
}
n = element.get();
if (n == null) {
if (firstTableEntry == element) {
hashes[h] = firstTableEntry = element.next;
}
else {
assert previousNonNullTableEntry != null : "previousNonNullTableEntry cannot be null here.";
previousNonNullTableEntry.next = element.next;
}
}
else {
if (n.getByteLength() == len && equals(n.bytes, 0, cs, start, len)) {
return n;
}
previousNonNullTableEntry = element;
}
element = element.next;
}
byte[] bytes = new byte[len];
System.arraycopy(cs, start, bytes, 0, len);
n = new NameImpl(this, bytes, index++);
System.arraycopy(cs, start, n.bytes, 0, len);
HashEntry newEntry = new HashEntry(n);
if (previousNonNullTableEntry == null) { // We are not the first name with that hashCode.
hashes[h] = newEntry;
}
else {
assert previousNonNullTableEntry.next == null : "previousNonNullTableEntry.next must be null.";
previousNonNullTableEntry.next = newEntry;
}
return n;
}
@Override
public void dispose() {
hashes = null;
}
static class NameImpl extends Name {
NameImpl(UnsharedNameTable table, byte[] bytes, int index) {
super(table);
this.bytes = bytes;
this.index = index;
}
final byte[] bytes;
final int index;
@Override
public int getIndex() {
return index;
}
@Override
public int getByteLength() {
return bytes.length;
}
@Override
public byte getByteAt(int i) {
return bytes[i];
}
@Override
public byte[] getByteArray() {
return bytes;
}
@Override
public int getByteOffset() {
return 0;
}
}
}

8
langtools/src/share/classes/com/sun/tools/javadoc/AnnotationTypeDocImpl.java
View file

@ -27,17 +27,13 @@ package com.sun.tools.javadoc;
import com.sun.javadoc.*;
import static com.sun.javadoc.LanguageVersion.*;
import com.sun.tools.javac.code.Flags;
import com.sun.tools.javac.code.Kinds;
import com.sun.tools.javac.code.Scope;
import com.sun.tools.javac.code.Symbol;
import com.sun.tools.javac.code.Symbol.*;
import com.sun.tools.javac.tree.JCTree.*;
import com.sun.tools.javac.util.List;
import com.sun.tools.javac.util.ListBuffer;
import com.sun.tools.javac.util.Name;
import com.sun.tools.javac.util.Names;
import com.sun.tools.javac.util.Position;
/**
@ -93,7 +89,7 @@ public class AnnotationTypeDocImpl
* Elements are always public, so no need to filter them.
*/
public AnnotationTypeElementDoc[] elements() {
Name.Table names = tsym.name.table;
Names names = tsym.name.table.names;
List<AnnotationTypeElementDoc> elements = List.nil();
for (Scope.Entry e = tsym.members().elems; e != null; e = e.sibling) {
if (e.sym != null && e.sym.kind == Kinds.MTH) {

21
langtools/src/share/classes/com/sun/tools/javadoc/ClassDocImpl.java
View file

@ -25,8 +25,6 @@
package com.sun.tools.javadoc;
import java.util.*;
import com.sun.javadoc.*;
import static com.sun.javadoc.LanguageVersion.*;
@ -40,7 +38,6 @@ import com.sun.tools.javac.code.Flags;
import com.sun.tools.javac.code.Kinds;
import com.sun.tools.javac.code.TypeTags;
import com.sun.tools.javac.code.Type;
import com.sun.tools.javac.code.Types;
import com.sun.tools.javac.code.Type.ClassType;
import com.sun.tools.javac.code.Scope;
import com.sun.tools.javac.code.Symbol;
@ -55,9 +52,9 @@ import com.sun.tools.javac.tree.JCTree.JCImport;
import com.sun.tools.javac.tree.JCTree.JCClassDecl;
import com.sun.tools.javac.tree.TreeInfo;
import com.sun.tools.javac.util.Names;
import static com.sun.tools.javac.code.Flags.*;
import static com.sun.tools.javac.code.Kinds.*;
import static com.sun.tools.javac.code.TypeTags.*;
import java.io.File;
import java.util.Set;
@ -549,7 +546,7 @@ public class ClassDocImpl extends ProgramElementDocImpl implements ClassDoc {
* methods in this class. Does not include constructors.
*/
public MethodDoc[] methods(boolean filter) {
Name.Table names = tsym.name.table;
Names names = tsym.name.table.names;
List<MethodDocImpl> methods = List.nil();
for (Scope.Entry e = tsym.members().elems; e != null; e = e.sibling) {
if (e.sym != null &&
@ -582,7 +579,7 @@ public class ClassDocImpl extends ProgramElementDocImpl implements ClassDoc {
* constructors in this class.
*/
public ConstructorDoc[] constructors(boolean filter) {
Name.Table names = tsym.name.table;
Names names = tsym.name.table.names;
List<ConstructorDocImpl> constructors = List.nil();
for (Scope.Entry e = tsym.members().elems; e != null; e = e.sibling) {
if (e.sym != null &&
@ -696,7 +693,7 @@ public class ClassDocImpl extends ProgramElementDocImpl implements ClassDoc {
}
private ClassDoc searchClass(String className) {
Name.Table names = tsym.name.table;
Names names = tsym.name.table.names;
// search by qualified name first
ClassDoc cd = env.lookupClass(className);
@ -848,7 +845,7 @@ public class ClassDocImpl extends ProgramElementDocImpl implements ClassDoc {
*---------------------------------*/
// search current class
Name.Table names = tsym.name.table;
Names names = tsym.name.table.names;
Scope.Entry e = tsym.members().lookup(names.fromString(methodName));
//### Using modifier filter here isn't really correct,
@ -936,7 +933,7 @@ public class ClassDocImpl extends ProgramElementDocImpl implements ClassDoc {
*/
public ConstructorDoc findConstructor(String constrName,
String[] paramTypes) {
Name.Table names = tsym.name.table;
Names names = tsym.name.table.names;
for (Scope.Entry e = tsym.members().lookup(names.fromString("<init>")); e.scope != null; e = e.next()) {
if (e.sym.kind == Kinds.MTH) {
if (hasParameterTypes((MethodSymbol)e.sym, paramTypes)) {
@ -973,7 +970,7 @@ public class ClassDocImpl extends ProgramElementDocImpl implements ClassDoc {
}
private FieldDocImpl searchField(String fieldName, Set<ClassDocImpl> searched) {
Name.Table names = tsym.name.table;
Names names = tsym.name.table.names;
if (searched.contains(this)) {
return null;
}
@ -1040,7 +1037,7 @@ public class ClassDocImpl extends ProgramElementDocImpl implements ClassDoc {
Env<AttrContext> compenv = env.enter.getEnv(tsym);
if (compenv == null) return new ClassDocImpl[0];
Name asterisk = tsym.name.table.asterisk;
Name asterisk = tsym.name.table.names.asterisk;
for (JCTree t : compenv.toplevel.defs) {
if (t.getTag() == JCTree.IMPORT) {
JCTree imp = ((JCImport) t).qualid;
@ -1076,7 +1073,7 @@ public class ClassDocImpl extends ProgramElementDocImpl implements ClassDoc {
ListBuffer<PackageDocImpl> importedPackages = new ListBuffer<PackageDocImpl>();
//### Add the implicit "import java.lang.*" to the result
Name.Table names = tsym.name.table;
Names names = tsym.name.table.names;
importedPackages.append(env.getPackageDoc(env.reader.enterPackage(names.java_lang)));
Env<AttrContext> compenv = env.enter.getEnv(tsym);

8
langtools/src/share/classes/com/sun/tools/javadoc/DocEnv.java
View file

@ -33,13 +33,11 @@ import com.sun.javadoc.*;
import com.sun.tools.javac.code.*;
import com.sun.tools.javac.code.Symbol.*;
import com.sun.tools.javac.code.Type.ClassType;
import com.sun.tools.javac.code.Type.TypeVar;
import com.sun.tools.javac.comp.Attr;
import com.sun.tools.javac.comp.Check;
import com.sun.tools.javac.tree.JCTree.*;
import com.sun.tools.javac.util.Context;
import com.sun.tools.javac.util.List;
import com.sun.tools.javac.util.Name;
import com.sun.tools.javac.util.Names;
import com.sun.tools.javac.util.Position;
@ -83,7 +81,7 @@ public class DocEnv {
JavadocEnter enter;
/** The name table. */
Name.Table names;
Names names;
/** The encoding name. */
private String encoding;
@ -131,7 +129,7 @@ public class DocEnv {
reader = JavadocClassReader.instance0(context);
enter = JavadocEnter.instance0(context);
attr = Attr.instance(context);
names = Name.Table.instance(context);
names = Names.instance(context);
externalizableSym = reader.enterClass(names.fromString("java.io.Externalizable"));
chk = Check.instance(context);
types = Types.instance(context);

7
langtools/src/share/classes/com/sun/tools/javadoc/SerializedForm.java
View file

@ -35,6 +35,7 @@ import com.sun.tools.javac.code.Symbol.ClassSymbol;
import com.sun.tools.javac.code.Symbol.MethodSymbol;
import com.sun.tools.javac.util.Name;
import com.sun.tools.javac.util.ListBuffer;
import com.sun.tools.javac.util.Names;
/**
* The serialized form is the specification of a class' serialization
@ -149,7 +150,7 @@ class SerializedForm {
* name SERIALIZABLE_FIELDS.
*/
private VarSymbol getDefinedSerializableFields(ClassSymbol def) {
Name.Table names = def.name.table;
Names names = def.name.table.names;
/* SERIALIZABLE_FIELDS can be private,
* so must lookup by ClassSymbol, not by ClassDocImpl.
@ -202,7 +203,7 @@ class SerializedForm {
* @param visibility the visibility flag for the given method.
*/
private void addMethodIfExist(DocEnv env, ClassSymbol def, String methodName) {
Name.Table names = def.name.table;
Names names = def.name.table.names;
for (Scope.Entry e = def.members().lookup(names.fromString(methodName)); e.scope != null; e = e.next()) {
if (e.sym.kind == Kinds.MTH) {
@ -228,7 +229,7 @@ class SerializedForm {
private void mapSerialFieldTagImplsToFieldDocImpls(FieldDocImpl spfDoc,
DocEnv env,
ClassSymbol def) {
Name.Table names = def.name.table;
Names names = def.name.table.names;
SerialFieldTag[] sfTag = spfDoc.serialFieldTags();
for (int i = 0; i < sfTag.length; i++) {

5
langtools/src/share/classes/com/sun/tools/javadoc/TypeVariableImpl.java
View file

@ -36,6 +36,7 @@ import com.sun.tools.javac.code.Type;
import com.sun.tools.javac.code.Type.TypeVar;
import com.sun.tools.javac.util.List;
import com.sun.tools.javac.util.Name;
import com.sun.tools.javac.util.Names;
/**
* Implementation of <code>TypeVariable</code>, which
@ -66,7 +67,7 @@ public class TypeVariableImpl extends AbstractTypeImpl implements TypeVariable {
if ((osym.kind & Kinds.TYP) != 0) {
return env.getClassDoc((ClassSymbol)osym);
}
Name.Table names = osym.name.table;
Names names = osym.name.table.names;
if (osym.name == names.init) {
return env.getConstructorDoc((MethodSymbol)osym);
} else {
@ -113,7 +114,7 @@ public class TypeVariableImpl extends AbstractTypeImpl implements TypeVariable {
*/
private static List<Type> getBounds(TypeVar v, DocEnv env) {
Name boundname = v.getUpperBound().tsym.getQualifiedName();
if (boundname == boundname.table.java_lang_Object) {
if (boundname == boundname.table.names.java_lang_Object) {
return List.nil();
} else {
return env.types.getBounds(v);

2
langtools/test/tools/javac/unit/util/convert/EnclosingCandidates.java
View file

@ -36,7 +36,7 @@ import java.util.Locale;
public class EnclosingCandidates {
Name.Table names = Name.Table.instance(new Context());
Names names = Names.instance(new Context());
void test(String name, String... expected) {
List<Name> result = enclosingCandidates(names.fromString(name));