* All features related to POSIX environments (env vars, shell stuff) gated by feature flags
* Dependencies optional per feature flags
* new CI target for non-POSIX build
* new CI target for release binary artifact
Signed-off-by: Ava Hahn [ava@sunnypup.io](mailto:ava@sunnypup.io)
This commit contains the following:
* New data types to support full tracebacks
* New traceback data type used across stl and ast
* Updates to tests
* fixes for error messaging in sym and some stl functions
* env prints variables and functions in seperate columns
* run/stl seperation of concerns significantly better
* def doesnt store lists or lambdas in the environment
* Background task implementation
* Foreground an existing task implementation
* Documentation for both
* Refactors to signal handling, process pre-exec
* Fix up project structures
* combine vars and funcs table
* make a place for old code that may be useful to reference
* singleton pattern for sym table
Commentary:
When this change is finally finished I promise to use feature branches
from here on out
- RC+RefCell pattern used... everywhere
- Ast type implemented
- unit tests for func_call
- more changes, but this commit scope has grown significantly and I
cannot list them all
- added vars to lib
- fixed adders and getters to both vtable and ftable
- made function operations a dual type (enum)
- prototyped calling of stored external ASTs with
arguments (additional operation type
- stub for eval
- added index function to Cell
