Parser gets stuck in an endless loop with an unmatched closing parenthesis #134
Description
Describe the bug
Hi,
thank you for developing this tree-sitter grammar 🙏🏻 👍🏻 . It works great, except for one annoying case.
To Reproduce
The parser runs into an endless loop for the following code (note the unmatched closing ) after int:
type MyType =
{ v: int }
member this.MemberFunc x : int) list = [ 1 ]
Debug logs return the following:
> npm run generate
> npx tree-sitter parse [path-to-bad-code] -d 2> debug_out.txt
<CTRL-C> # parse will never end as it runs into an endless loop
> cat debug_out.txt
...
recover_to_previous state:6095, depth:5
process version:1, version_count:3, state:5646, row:3, col:34
lex_internal state:158, row:3, column:34
consume character:')'
lexed_lookahead sym:), size:1
reduce sym:long_identifier_or_op, child_count:1
reduce sym:identifier_pattern, child_count:1
reduce sym:_pattern, child_count:1
detect_error
process version:2, version_count:3, state:6095, row:3, col:35
lex_external state:43, row:3, column:35
skip character:' '
lex_internal state:145, row:3, column:35
skip character:' '
consume character:'l'
consume character:'i'
consume character:'s'
consume character:'t'
consume character:'l'
lexed_lookahead sym:identifier, size:5
detect_error
resume version:0
skip_token symbol:)
process version:0, version_count:2, state:0, row:3, col:35
lex_external state:1, row:3, column:35
lexed_lookahead sym:_dedent, size:0
recover_to_previous state:6095, depth:5The parser recovers to state 6095, runs into an error, recovers to state 6095, runs into an error ...
Expected behavior
The parser does not run into an endless loop.
** Environment (please complete the following information):**
OS: Linux
Grammar version: Commit ad824de