ICE when compiling 'bson' module

[jbemmel]

One of my apps has the 'bson' npm package installed, and the compiler produces an ICE when processing it:

[09:55:15] Starting 'bug'...
/usr/lib/node_modules/google-closure-compiler-js/jscomp.js:4429
function yEb(b){var c;try{return b.Rh()}catch(a){a=Rgb(a);if(iL(a,71)){c=a;throw Sgb(new oJ(c))}else throw Sgb(a)}}
^

Error: java.lang.RuntimeException: java.lang.RuntimeException: INTERNAL COMPILER ERROR. Please report this problem. (TypeError) : Cannot read property 'b' of null Node(NAME Double): node_modules/bson/alternate_parsers/bson.js:2:4 , Double = require('../lib/bson/double').Double Parent(VAR): node_modules/bson/alternate_parsers/bson.js:1:0 var Long = require('../lib/bson/long').Long
at oJ.MG [as Mf] (/usr/lib/node_modules/google-closure-compiler-js/jscomp.js:7504:21518)
at oJ.PG [as Of] (/usr/lib/node_modules/google-closure-compiler-js/jscomp.js:7504:21719)
at oJ (/usr/lib/node_modules/google-closure-compiler-js/jscomp.js:3438:76)
at yEb (/usr/lib/node_modules/google-closure-compiler-js/jscomp.js:4429:86)
at zCb (/usr/lib/node_modules/google-closure-compiler-js/jscomp.js:6191:93)
at e4c (/usr/lib/node_modules/google-closure-compiler-js/jscomp.js:7131:349)
at DJ (/usr/lib/node_modules/google-closure-compiler-js/jscomp.js:1729:29)
at GJ (/usr/lib/node_modules/google-closure-compiler-js/jscomp.js:3005:44)
at /usr/lib/node_modules/google-closure-compiler-js/jscomp.js:3179:46
at module.exports (/usr/lib/node_modules/google-closure-compiler-js/compile.js:31:15)
at CompilationStream._flush (/usr/lib/node_modules/google-closure-compiler-js/lib/gulp.js:97:22)
at CompilationStream. (_stream_transform.js:118:12)
at CompilationStream.g (events.js:292:16)
at emitNone (events.js:86:13)
at CompilationStream.emit (events.js:185:7)
at prefinish (_stream_writable.js:505:12)
at finishMaybe (_stream_writable.js:513:7)
at endWritable (_stream_writable.js:525:3)
at CompilationStream.Writable.end (_stream_writable.js:490:5)
at DestroyableTransform.onend (/tmp/ov/node_modules/vinyl-fs/node_modules/readable-stream/lib/_stream_readable.js:523:10)
at DestroyableTransform.g (events.js:292:16)
at emitNone (events.js:91:20)
at DestroyableTransform.emit (events.js:185:7)
at /tmp/ov/node_modules/vinyl-fs/node_modules/readable-stream/lib/_stream_readable.js:965:16
at _combinedTickCallback (internal/process/next_tick.js:67:7)
at process._tickCallback (internal/process/next_tick.js:98:9)

npm list -g | grep goo
├─┬ google-closure-compiler-js@20161201.0.0

gulpfile to reproduce:

const gulp = require('gulp');
const compiler = require('google-closure-compiler-js').gulp();

gulp.task('bug', function() {
  return gulp.src( [ "node_modules/bson/**/*.js" ], {base: './'})
      // your other steps here
      .pipe(compiler({
          compilationLevel: 'SIMPLE',
          warningLevel: 'VERBOSE',
          processCommonJsModules: true,
          outputWrapper: '(function(){\n%output%\n}).call(this)',
          jsOutputFile: 'output.min.js',  // outputs single file
          createSourceMap: true,
        }))
      .pipe(gulp.dest('./build'));
});

[MatrixFrog]

Checking to see if this happens with the Java version too in which case it's just a bug in the compiler, and we should get a more readable stack trace.

[MatrixFrog]

Seems to not happen with the Java version. @Dominator008 or @samthor do you know how to build a non-obfuscated version of the GWT build so that the stack trace we get is readable?

[Dominator008]

Using 20170124.0.0 it didn't crash for me, but also didn't compile because the module resolution wasn't working. I'll try again once 20170218.0.0 is published.

@MatrixFrog You'd need to add

<optimize>0</optimize>

to
https://github.com/google/closure-compiler/blob/f21c592ef37c71f39f98d7d18ebb59c618f4f420/pom-gwt.xml#L254
for a non-optimized version.