/** Return atom as a string literal */
@Pure
public synchronized String toUnicodeString() throws java.io.UTFDataFormatException {
if (unicodeStringOrJTOCoffset == null) {
String s = UTF8Convert.fromUTF8(val);
if (VM.runningVM) {
s = InternedStrings.internUnfoundString(s);
unicodeStringOrJTOCoffset = s;
} else if (!VM.writingImage) {
s = s.intern();
int offset = Statics.findOrCreateObjectLiteral(s);
unicodeStringOrJTOCoffset = offset;
}
return s;
} else if (unicodeStringOrJTOCoffset instanceof String) {
return (String) unicodeStringOrJTOCoffset;
} else {
if (VM.runningVM) {
return (String)
Statics.getSlotContentsAsObject(
Offset.fromIntSignExtend((Integer) unicodeStringOrJTOCoffset));
} else {
return UTF8Convert.fromUTF8(val).intern();
}
}
}
/**
* Offset of an atom's string in the JTOC, for string literals
*
* @return Offset of string literal in JTOC
* @throws java.io.UTFDataFormatException
*/
public synchronized int getStringLiteralOffset() throws java.io.UTFDataFormatException {
if (unicodeStringOrJTOCoffset == null) {
String s = UTF8Convert.fromUTF8(val);
if (VM.runningVM) {
s = InternedStrings.internUnfoundString(s);
} else {
s = s.intern();
}
int offset = Statics.findOrCreateObjectLiteral(s);
unicodeStringOrJTOCoffset = offset;
return offset;
} else if (unicodeStringOrJTOCoffset instanceof String) {
int offset = Statics.findOrCreateObjectLiteral(unicodeStringOrJTOCoffset);
unicodeStringOrJTOCoffset = offset;
return offset;
} else {
return (Integer) unicodeStringOrJTOCoffset;
}
}
/** Atom as string literal or null if atom hasn't been converted */
private synchronized String toUnicodeStringInternal() {
if (unicodeStringOrJTOCoffset == null) {
return null;
} else if (unicodeStringOrJTOCoffset instanceof String) {
return (String) unicodeStringOrJTOCoffset;
} else {
if (VM.runningVM) {
Object result =
Statics.getSlotContentsAsObject(
Offset.fromIntSignExtend((Integer) unicodeStringOrJTOCoffset));
return (String) result;
} else {
try {
return UTF8Convert.fromUTF8(val).intern();
} catch (UTFDataFormatException e) {
throw new Error("Error in UTF data encoding: ", e);
}
}
}
}