Methods appearing as "<unknown field type>" on Node.js v8.x+

Version: llnode master
Platform: OS X (10.13.4)
Subsystem: findjsinstances -d, inspect

llnode can't inspect methods on Node.js v8.x or later. v6.x works fine.

node v6.14.2

(lldb) v8 findjsinstances -d Lero
0x00001897d2db3639:<Object: Lero properties {
    .constructor=0x00001897d2db35d1:<function: Lero at /Users/mmarchini/tmp/llnode-example/index.js:4:14>,
    .foo=0x00001897d2db3841:<function: foo at /Users/mmarchini/tmp/llnode-example/index.js:8:6>}>
0x00001897d2db3fb9:<Object: Lero properties {
    .lala=0x00001897d2db4051:<Object: Object>}>
0x00001897d2db40d1:<Object: Lero properties {
    .lala=0x00001897d2db4131:<Object: Object>}>

node v8.0.0 (or later)

(lldb) v8 findjsinstances -d Lero
0x000008c85fc57999:<Object: Lero properties {
    .constructor=<unknown field type>,
    .foo=<unknown field type>}>
0x000008c85fc58161:<Object: Lero properties {
    .lala=0x000008c85fc581c1:<Object: Object>}>
0x000008c85fc58241:<Object: Lero properties {
    .lala=0x000008c85fc582a1:<Object: Object>}>

index.js

class Lero {
  constructor() {
    this.lala = {};
  }

  foo(a) {
    return a;
  }
}

class Lira {
  constructor() {
    this.lele = {};
  }
}

function Lura() {
  this.lele = 1;
  this.constructor = function() {};
}

const lura = new Lura();
lura.lorem = "ipsum";

const lero = new Lero();

function foo() {
  const lero2 = new Lero();
  boom();
}


foo();

This happened to me as well. Make sure to load the plugin manually in lldb or relink it if you updated your llnode global install (i.e. if it ended up in a different location).
The below worked for me on OSX.

mkdir -p ~/Library/Application\ Support/LLDB/PlugIns
ln -sf <path-to-npm-global-installs>/lib/node_modules/llnode/llnode.dylib \
    ~/Library/Application\ Support/LLDB/PlugIns/

src: inspect properties with descriptor details

src: fix inspection of read-only properties

src: inspect properties with descriptor details

src: fix inspection of read-only properties

src: inspect properties with descriptor details

src: fix inspection of read-only properties

src: inspect properties with descriptor details

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Methods appearing as "<unknown field type>" on Node.js v8.x+ #198

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Methods appearing as "<unknown field type>" on Node.js v8.x+ #198

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thlorenz commented on May 16, 2018

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