util.inspect: cannot read property 'options' of null

[pi0]

When using esm programmatically, passing any options object as second arg breaks util.inspect().

I've tried versions one by one. This bug seems to be introduced by 3.2.11...3.2.12. Downgrading to 3.2.11 fixes problem but any version equal or higher to 3.2.12 has this problem.

Additional info:

• OS: Ubuntu/Linux
• Node: v11.10.1

Repo:

• https://github.com/pi0/esm-inspect-bug

a.js

require('esm')(module)('./inspect.js')

b.js

require('esm')(module, {})('./inspect.js')

inspect.js

import { inspect } from 'util'

inspect({})

// originally also fails with CJS:
// require('util').inspect({})

Running node a.js seems fine but node b.js throws this error:

TypeError: Cannot read property 'options' of null
    at Object.<anonymous> (/home/pooya/tmp/esm-inspect/inspect.js:1)
    at Generator.next (<anonymous>)

With debug enabled:

var __global__ = this;(function (require, module, __shared__) { var __shared__;const e=module,t={Array:global.Array,Buffer:global.Buffer,Error:global.Error,EvalError:global.EvalError,Function:global.Function,JSON:global.JSON,Object:global.Object,Promise:global.Promise,RangeError:global.RangeError,ReferenceError:global.ReferenceError,Reflect:global.Reflect,SyntaxError:global.SyntaxError,TypeError:global.TypeError,URIError:global.URIError,eval:global.eval},r=global.console;module.exports=(function(e){var t={};function r(i){if(t[i])return t[i].exports;var n=t[i]={i:i,l:!1,exports:{}};return e[i].call(n.exports,n,n.exports,r),n.l=!0,n.exports}return r.d=function(e,t,r){Reflect.defineProperty(e,t,{configurable:!0,enumerable:!0,get:r})},r.n=function(e){return e.a=e,function(){return e}},r(r.s=2)})([(function(e,t){var r;t=e.exports=H,"object"==typeof process&&process,r=function(){},t.SEMVER_SPEC_VERSION="2.0.0";var i=256,n=Number.MAX_SAFE_INTEGER||9007199254740

TypeError: Cannot read property 'options' of null
    at s (/home/pooya/tmp/esm-inspect/node_modules/esm/esm.js:1:192718)
    at Proxy.i (/home/pooya/tmp/esm-inspect/node_modules/esm/esm.js:1:190967)
    at Proxy.<anonymous> (/home/pooya/tmp/esm-inspect/node_modules/esm/esm.js:1:194574)
    at Object.apply (/home/pooya/tmp/esm-inspect/node_modules/esm/esm.js:1:194364)
    at Object.<anonymous> (/home/pooya/tmp/esm-inspect/inspect.js:1:17)
    at Object.<anonymous> (/home/pooya/tmp/esm-inspect/node_modules/esm/esm.js:1:244937)
    at /home/pooya/tmp/esm-inspect/node_modules/esm/esm.js:1:239014
    at Generator.next (<anonymous>)
    at su (/home/pooya/tmp/esm-inspect/node_modules/esm/esm.js:1:239353)
    at pu (/home/pooya/tmp/esm-inspect/node_modules/esm/esm.js:1:241564)

[pi0]

For history, this issue is breaking mongoose Document.prototype.toString when being used in an ESM environment which was programmatically created.

[jdalton]

If I had to guess it looks like the error is coming from this line. I'll dig in.

Update:

Confirmed

Update:

I've fixed the issue locally, though working through the affects of it.

Update:

Patches 7f3f4b2, 70bac76; Tests 9a9a90e;

Update:

esm v3.2.15 is released 🎉