Rephract is a JDK7/JDK8 invokedynamic linker library.

I provides an API for writing linkers against a meta-object protocol.

A single RephractLinker is bootstrapped into an invokedynamic-using program,
and each linker is allowed an opportunity to link invocations of standard 
operations, such as

  * dyn:getProperty
  * dyn:setProperty
  * dyn:getMethod
  * dyn:call
  * dyn:construct

Additionally, Rephract supports the injection (or removal) of language contexts
during the link phase, and rationalizes all forms of each MOP call into a
predicatable format.

Rephract now supports a unified Link API to make it easier to keep the linking
logic and subsequent link-usage guard logic in sync, by having just one chunk of
logic.

For instance, see the dyn:getProperty Link for linking Java instances:

  https://github.com/projectodd/rephract/blob/master/src/main/java/org/projectodd/rephract/java/instance/InstancePropertyGetLink.java

Rephract ships with linkers for:

  * Java classes (get/set properties, get methods, call methods, and construct instances)
  * Java instances (get/set properties, get methods, call methods)
  * Map-like objects (get/set 'properties' using get(key) and put(key,value)

Rephract is currently used in DynJS to provide invokedynamic-based linking for
Java integration and core Javascript dispatch.