Comments in project.json array literals incorrectly read as array elements

Steps to reproduce

Add the following to your project.json

"buildOptions": {
  "embed": {
    "exclude": [
      //"Strings.fr.resx"
    ]
  }
}

Expected behavior

Application runs as expected with the fr resources.dll (if “Strings.fr.resx” exists, this isn’t necessary to reproduce) in the output since there is nothing in the exclude array.

Actual behavior

> dotnet run
Illegal characters in path.
Parameter name: path

Same output is in build, publish and some others since it seems to attempt to interpret //"Strings.fr.resx" as a path

Environment data

dotnet --info output:

.NET Command Line Tools (1.0.0-rc2-002678)

Product Information:
 Version:     1.0.0-rc2-002678
 Commit Sha:  3b2ea9d14b

Runtime Environment:
 OS Name:     Windows
 OS Version:  10.0.10586
 OS Platform: Windows
 RID:         win10-x64

[peterblazejewicz]

That’s the point: from my perspective (someone new to C#/.NET stack) that’s perfectly illegal to use comments in JSON: http://stackoverflow.com/questions/244777/can-i-use-comments-inside-a-json-file http://www.ietf.org/rfc/rfc7159.txt So for me that’s not an issue

[shederman]

JSON.Net supports comments