var ffi = require('../')
var funcPtr = ffi.Callback('int', [ 'int' ], Math.abs)
var func = ffi.ForeignFunction(funcPtr, 'int', [ 'int' ])
func(-3)
global.gc()
func(-3)
node --expose_gc test.js
FATAL ERROR: v8::ArrayBuffer::Neuter Only externalized ArrayBuffers can be neutered