alanz / tree-sitter-error-recovery-example

Tree Sitter Error Recovery Example

Example of a tree-sitter grammar with bad error recovery, so I can learn how to write a better grammar.

See test in test/corpus/examples.

This example of an Erlang-style function definition parses fine:

main() ->
    call().

but leaving out just two characters produces just an ERROR node without much structure:

main() ->
    call(

    (ERROR
      (name)
      (args)
      (name))

Install

npm install

Run tests

npm generate && npm test