*note: *forwarding to amber-dev, also I forgot adding that this work was
done under JEP 303 but will be put back under its own JEP earlier than 303.
Hi all,
I've run javadoc [1] for the three following packages: java.lang,
java.lang.invoke, and the new java.lang.invoke.constant. The highlights:
- java.lang.invoke.constant: The ConstantDesc hierarchy, which models
"descriptors" for constant values. (Interfaces in the ConstantDesc
hierarchy correspond to the various kinds of constant pool entry in JVMS
4.4. Just as the JVM resolves a constant pool entry in order to yield a
value, you can ask a ConstantDesc object to resolve itself in order to
yield the value "described" by the object.) Also, the factory interface
Constable, which an ordinary class can implement in order to map its
constant values to descriptors. - java.lang.invoke: MethodHandle,
MethodType, and VarHandle implement Constable. Also, new types that
model type descriptors, field descriptors, and method descriptors from
JVMS 4.3. Also, the Intrinsics class with methods to instruct the
compiler to generate `ldc` and `invokedynamic` bytecodes. - java.lang:
Class, String, Integer, etc implement Constable. Also, Class implements
j.l.i.FieldTypeDescriptor. Also, String, Integer, etc implement
ConstantDesc. Also as a reference [2] is the last webrev. Thanks, Vicente
[1]
http://cr.openjdk.java.net/~vromero/constant.api/javadoc.03/java.base-summary.html
[2]
http://cr.openjdk.java.net/~vromero/constant.api/webrev.03/constants.api.patch
On 04/27/2018 01:31 PM, Vicente Romero wrote:
Hi all,
Please review the current proposal of the constants API, which are
nominal descriptor types defined in pkg java.lang.invoke.constant. The
code can be found at [1]. This API is being developed in the context
of JEP 303: Intrinsics for the LDC and INVOKEDYNAMIC Instructions [2]
Thanks in advance for your comments,
Vicente
[1] http://cr.openjdk.java.net/~vromero/constant.api/webrev.00
[2] http://openjdk.java.net/jeps/303
