Drop support for history file version 1.
ParseExecutionContext no longer contains an OperationContext because in my
first implementation, ParseExecutionContext didn't have interior mutability.
We should probably try to add it back.
Add a few to-do style comments. Search for "todo!" and "PORTING".
Co-authored-by: Xiretza <xiretza@xiretza.xyz>
(complete, wildcard, expand, history, history/file)
Co-authored-by: Henrik Hørlück Berg <36937807+henrikhorluck@users.noreply.github.com>
(builtins/set)
This reduces noise in the upcoming "Port execution" commit.
I accidentally made IoStreams a "class" instead of a "struct". Would be
easy to correct that but this will be deleted soon, so I don't think we care.
The `impl<T> Hash for &T` hashes the string itself[^1].
It is unclear if that is actually faster than just calling `keyfunc` multiple times (they should all be linear).
For context, Rust by default uses SipHash 1-3 db1b1919ba
An alternative would be to store it as raw pointers aka `*const T`, which have a cheaper hash impl.
That has a more complicated implementation + removes lifetimes.
This commit rather removes the premature optimization.
[^1]: Source: https://doc.rust-lang.org/std/ptr/fn.hash.html
- The Err-variants will be used by e.g. wildcard, so might as well change it
now.
- `create_directory` should now not infinitely loop until it fails with an
error message that isn't `EAGAIN`
