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8225054: Compiler implementation for records

Browse source 
8225052: javax.lang.model support for records
8225053: Preview APIs support for records
8225055: Javadoc for records
8226314: com.sun.source support for records
8227113: Specification for java.lang.Record
8233526: JVM support for records

Implement records in the compiler and the JVM, including serialization, reflection and APIs support

Co-authored-by: Brian Goetz <brian.goetz@oracle.com>
Co-authored-by: Maurizio Cimadamore <maurizio.cimadamore@oracle.com>
Co-authored-by: Harold Seigel <harold.seigel@oracle.com>
Co-authored-by: Joe Darcy <joe.darcy@oracle.com>
Co-authored-by: Jonathan Gibbons <jonathan.gibbons@oracle.com>
Co-authored-by: Chris Hegarty <chris.hegarty@oracle.com>
Co-authored-by: Jan Lahoda <jan.lahoda@oracle.com>
Reviewed-by: mcimadamore, briangoetz, alanb, darcy, chegar, jrose, jlahoda, coleenp, dholmes, lfoltan, mchung, sadayapalam, hannesw, sspitsyn
This commit is contained in:
Vicente Romero 2019-12-04 15:57:39 -05:00
parent 0a375cfa2d
commit 827e5e3226
351 changed files with 24958 additions and 6395 deletions
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24
src/java.base/share/classes/java/io/ObjectOutputStream.java
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@ -150,6 +150,10 @@ import sun.reflect.misc.ReflectUtil;
* defaultWriteObject and writeFields initially terminate any existing
* block-data record.
*
* @implSpec
* Records are serialized differently than ordinary serializable or externalizable
* objects, see <a href="ObjectInputStream.html#record-serialization">record serialization</a>.
*
* @author Mike Warres
* @author Roger Riggs
* @see java.io.DataOutput
@ -1431,7 +1435,10 @@ public class ObjectOutputStream
bout.writeByte(TC_OBJECT);
writeClassDesc(desc, false);
handles.assign(unshared ? null : obj);
if (desc.isExternalizable() && !desc.isProxy()) {
if (desc.isRecord()) {
writeRecordData(obj, desc);
} else if (desc.isExternalizable() && !desc.isProxy()) {
writeExternalData((Externalizable) obj);
} else {
writeSerialData(obj, desc);
@ -1475,6 +1482,21 @@ public class ObjectOutputStream
curPut = oldPut;
}
/** Writes the record component values for the given record object. */
@SuppressWarnings("preview")
private void writeRecordData(Object obj, ObjectStreamClass desc)
throws IOException
{
assert obj.getClass().isRecord();
ObjectStreamClass.ClassDataSlot[] slots = desc.getClassDataLayout();
if (slots.length != 1) {
throw new InvalidClassException(
"expected a single record slot length, but found: " + slots.length);
}
defaultWriteFields(obj, desc); // #### seems unnecessary to use the accessors
}
/**
* Writes instance data for each serializable class of given object, from
* superclass to subclass.