Package org.apache.groovy.internal.runtime.invoke

Interface DirectInvoker

Functional Interface:
This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.
@FunctionalInterface public interface DirectInvoker
JIT-constant trampoline for a single Method.

Not user API. Not an invokedynamic target. Valid for the Method lifetime, not across MetaMethod wrappers.

Public because generated nestmates of a foreign host (other package, other loader) must implements this interface. The containing internal package is japicmp-excluded.

Since:
6.0.0

  • Method Summary

    Modifier and Type
    Method
    Description
    Object
    invoke(Object receiver, Object[] arguments)
    Invokes the bound method on receiver with arguments.

  • Method Details

    • invoke

      Object invoke(Object receiver, Object[] arguments) throws Throwable
      Invokes the bound method on receiver with arguments.

      Arguments are assumed already coerced (see MetaMethod.doMethodInvoke) except when a TransformMetaMethod skipped coercion. Generated trampolines require a non-null arguments array (use MetaClassHelper.EMPTY_ARRAY for no args); CachedMethod.invoke performs that substitution. Primitive returns are boxed; the caller runs normalizeBoxedReturn.

      Parameters:
      receiver - the receiver, ignored for static methods
      arguments - the positional arguments (non-null; empty if none)
      Returns:
      the boxed result, or null for void
      Throws:
      Throwable - the target's thrown exception, unwrapped. A narrower type would wrap Error and checked exceptions the reflective path leaves as ITE causes.