Package org.mozilla.javascript.optimizer

Class Bootstrapper

java.lang.Object

org.mozilla.javascript.optimizer.Bootstrapper

public class Bootstrapper
extends Object

The Bootstrapper contains the method that is called by invokedynamic instructions in the bytecode to map a call site to a method. The "bootstrap" method here is called the first time the runtime encounters a particular "invokedynamic" call site, and it is responsible for setting up method handles that may be used to invoke code. To learn more about this entire sequence, read up on the "jdk.dynalink" package.

We will never go down this entire code path on Android because we do not support bytecode generation there.

Field Summary

Fields

Modifier and Type	Field	Description
static final ClassFileWriter.MHandle	BOOTSTRAP_HANDLE	This is the method handle that's wired in to the bytecode for every dynamic call site in the bytecode.

Constructor Summary

Constructors

Constructor	Description
Bootstrapper()

Method Summary

Modifier and Type	Method	Description
static CallSite	bootstrap(MethodHandles.Lookup lookup, String name, MethodType mType)	This is the method called by every call site in the bytecode to map it to a method handle.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

BOOTSTRAP_HANDLE

public static final ClassFileWriter.MHandle BOOTSTRAP_HANDLE

This is the method handle that's wired in to the bytecode for every dynamic call site in the bytecode.

Constructor Details

Bootstrapper

public Bootstrapper()

Method Details

bootstrap

public static CallSite bootstrap(MethodHandles.Lookup lookup,
 String name,
 MethodType mType)
                          throws NoSuchMethodException

This is the method called by every call site in the bytecode to map it to a method handle.

Throws:

NoSuchMethodException