Python parsing does not work well with empty blocks

[mgsloan]

In the playground, if I type in

def foo():

I get

module [0, 0] - [1, 0])
  ERROR [0, 0] - [0, 10])
    identifier [0, 4] - [0, 7])
    parameters [0, 7] - [0, 9])

If I add a statement at indent level 0:

def foo():

print "hi"

I get

module [0, 0] - [3, 0])
  function_definition [0, 0] - [2, 10])
    name: identifier [0, 4] - [0, 7])
    parameters: parameters [0, 7] - [0, 9])
    body: block [2, 0] - [2, 10])
      print_statement [2, 0] - [2, 10])
        argument: string [2, 6] - [2, 10])

I believe this reveals a flaw in the indentation sensitivity of the python parser. Ideally:

1. print "hi" should not get parsed as a child of the function_definition.

2. The empty block should be filled in with a MISSING recovery of insertion of pass

I don't know much about tree sitter grammar construction, so I am not sure if fixing this is feasible. Similar issues occur with unterminated parenthesis at the end of the block, incomplete infix operators, etc.

[maxbrunsfeld]

Thanks for writing this up!

[mgsloan]

You're welcome, thanks for the quick fix!