#pest #pest-grammar #ast #pest-parser #ast-node #convert #tree

pest-deconstruct

Convert from a pest grammar to a typed AST

1 unstable release

Uses old Rust 2015

0.2.0 Oct 13, 2018

#18 in #ast-node

30 downloads per month

MIT license

12KB
92 lines

pest-deconstruct

This is an in-development addon to the pest parsing library.

(Working title, also considered: pest-ast, from-pest, just making this part of pest)

Pest-deconstruct provides a structured manner to go from the "dynamically typed" Pest Parse Tree to a strongly typed (Abstract) Syntax Tree, as well as a derive to do so automatically. In the future, it's planned to optionally additionally check the source grammar to statically prevent issues that are currently detected at runtime.

In the future 🦄, pest-ast may provide a way of defining grammar directly on the AST nodes.

This library is now dogfooded for the nafi programming language.

Contributing

See the current list of [good first issue] issues. If you have questions, don't be afraid to @ the author (CAD97) on the pest Gitter channel.

License

pest-deconstruct is licensed under both the MIT license and the Apache License 2.0. Either terms may be used at your option. All PRs are understood to be agreeing to contribution under these terms as defined in the Apache license.

See [LICENSE-APACHE] and [LICENSE-MIT] for details.

Copyright 2018 Christopher Durham (aka CAD97)

Dual licensed under the Apache License, Version 2.0 and the MIT License (collectively, the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0
https://opensource.org/licenses/MIT

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

Dependencies

~4MB
~82K SLoC