nushell/crates
Yehuda Katz e4226def16 Extract core stuff into own crates
This commit extracts five new crates:

- nu-source, which contains the core source-code handling logic in Nu,
  including Text, Span, and also the pretty.rs-based debug logic
- nu-parser, which is the parser and expander logic
- nu-protocol, which is the bulk of the types and basic conveniences
  used by plugins
- nu-errors, which contains ShellError, ParseError and error handling
  conveniences
- nu-textview, which is the textview plugin extracted into a crate

One of the major consequences of this refactor is that it's no longer
possible to `impl X for Spanned<Y>` outside of the `nu-source` crate, so
a lot of types became more concrete (Value became a concrete type
instead of Spanned<Value>, for example).

This also turned a number of inherent methods in the main nu crate into
plain functions (impl Value {} became a bunch of functions in the
`value` namespace in `crate::data::value`).
2019-12-02 10:54:12 -08:00
..
nu-errors Extract core stuff into own crates 2019-12-02 10:54:12 -08:00
nu-parser Extract core stuff into own crates 2019-12-02 10:54:12 -08:00
nu-protocol Extract core stuff into own crates 2019-12-02 10:54:12 -08:00
nu-source Extract nu_source into a crate 2019-11-25 07:37:33 -08:00
nu-textview Extract core stuff into own crates 2019-12-02 10:54:12 -08:00