Empty JSON/graphql file throws error

[azz]

If a JSON file is empty or just has whitespace, Prettier throws an error. I think we should just output an empty file in this case. This issue causes prettier/pretty-quick#28.

Prettier 1.12.1
Playground link

--parser json

Input:

Output:

SyntaxError: Unexpected token (1:2)
> 1 |  
    |  ^

[lipis]

What about other empty file types?

[azz]

I thought all the other would be fine (empty file is already ok), but looks like graphql fails too.

[ad1992]

@azz @lipis the graphql empty file error is due to the parse of graphql .

  const parser = require("graphql/language");
  parser.parse("");

This gives GraphQLError: Syntax Error: Unexpected <EOF>
Can be veriffied here as well https://graphql.github.io/swapi-graphql/?