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8225054: Compiler implementation for records

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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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88
src/java.base/share/classes/java/lang/Class.java
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@ -46,6 +46,7 @@ import java.lang.reflect.Member;
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
import java.lang.reflect.Proxy;
import java.lang.reflect.RecordComponent;
import java.lang.reflect.Type;
import java.lang.reflect.TypeVariable;
import java.lang.constant.Constable;
@ -2259,6 +2260,68 @@ public final class Class<T> implements java.io.Serializable,
return copyFields(privateGetDeclaredFields(false));
}
/**
* {@preview Associated with records, a preview feature of the Java language.
*
* This method is associated with <i>records</i>, a preview
* feature of the Java language. Preview features
* may be removed in a future release, or upgraded to permanent
* features of the Java language.}
*
* Returns an array containing {@code RecordComponent} objects reflecting all the
* declared record components of the record represented by this {@code Class} object.
* The components are returned in the same order that they are declared in the
* record header.
*
* @return The array of {@code RecordComponent} objects representing all the
* record components of this record. The array is empty if this class
* is not a record, or if this class is a record with no components.
* @throws SecurityException
* If a security manager, <i>s</i>, is present and any of the
* following conditions is met:
*
* <ul>
*
* <li> the caller's class loader is not the same as the
* class loader of this class and invocation of
* {@link SecurityManager#checkPermission
* s.checkPermission} method with
* {@code RuntimePermission("accessDeclaredMembers")}
* denies access to the declared methods within this class
*
* <li> the caller's class loader is not the same as or an
* ancestor of the class loader for the current class and
* invocation of {@link SecurityManager#checkPackageAccess
* s.checkPackageAccess()} denies access to the package
* of this class
*
* </ul>
*
* @jls 8.10 Record Types
* @since 14
*/
@jdk.internal.PreviewFeature(feature=jdk.internal.PreviewFeature.Feature.RECORDS,
essentialAPI=false)
@SuppressWarnings("preview")
@CallerSensitive
public RecordComponent[] getRecordComponents() {
SecurityManager sm = System.getSecurityManager();
if (sm != null) {
checkMemberAccess(sm, Member.DECLARED, Reflection.getCallerClass(), true);
}
if (isPrimitive() || isArray()) {
return new RecordComponent[0];
}
Object[] recordComponents = getRecordComponents0();
if (recordComponents == null || recordComponents.length == 0) {
return new RecordComponent[0];
}
RecordComponent[] result = new RecordComponent[recordComponents.length];
for (int i = 0; i < recordComponents.length; i++) {
result[i] = (RecordComponent)recordComponents[i];
}
return result;
}
/**
* Returns an array containing {@code Method} objects reflecting all the
@ -3417,6 +3480,8 @@ public final class Class<T> implements java.io.Serializable,
private native Method[] getDeclaredMethods0(boolean publicOnly);
private native Constructor<T>[] getDeclaredConstructors0(boolean publicOnly);
private native Class<?>[] getDeclaredClasses0();
private native Object[] getRecordComponents0();
private native boolean isRecord0();
/**
* Helper method to get the method name from arguments.
@ -3525,6 +3590,29 @@ public final class Class<T> implements java.io.Serializable,
this.getSuperclass() == java.lang.Enum.class;
}
/**
* {@preview Associated with records, a preview feature of the Java language.
*
* This method is associated with <i>records</i>, a preview
* feature of the Java language. Preview features
* may be removed in a future release, or upgraded to permanent
* features of the Java language.}
*
* Returns {@code true} if and only if this class is a record class.
* It returns {@code false} otherwise. Note that class {@link Record} is not a
* record type and thus invoking this method on class {@link java.lang.Record}
* returns {@code false}.
*
* @return true if and only if this class is a record class
* @jls 8.10 Record Types
* @since 14
*/
@jdk.internal.PreviewFeature(feature=jdk.internal.PreviewFeature.Feature.RECORDS,
essentialAPI=false)
public boolean isRecord() {
return isRecord0();
}
// Fetches the factory for reflective objects
private static ReflectionFactory getReflectionFactory() {
if (reflectionFactory == null) {