Compiler doesn't output synthetic code in WHITESPACE_ONLY

cat lol.js

let a = [0, 1];
for (var x of a) {
}

java -jar ~/code/compiler.jar \
   --compilation_level=WHITESPACE_ONLY \
   --js_output_file=/dev/stdout \
   --language_in=ECMASCRIPT6_STRICT \
   --language_out=ECMASCRIPT5_STRICT \
   --formatting=PRETTY_PRINT \
   --js lol.js

'use strict';var a = [0, 1];
for (var $jscomp$iter$0 = $jscomp.makeIterator(a), $jscomp$key$x = $jscomp$iter$0.next();!$jscomp$key$x.done;$jscomp$key$x = $jscomp$iter$0.next()) {
  var x = $jscomp$key$x.value
}
;

[concavelenz]

See also this: https://github.com/google/closure-compiler/issues/2950

If it isn’t going to include the jscomp.* code, it shouldn’t include the polyfills either as it, it is duplicating polyfill code and is still is non-functional. The compiler should produce a functional bundle at least that would be something useful.

[brad4d]

@OzoneGrif, will setting the --language_out=ES_2017 option to avoid transpilation be sufficient for your needs? Or maybe just use SIMPLE optimization mode?

This is a low priority issue.