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Shell

Struct Shell 

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pub struct Shell<'a> { /* private fields */ }
Expand description

Interactive WhyOS shell loop.

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impl<'a> Shell<'a>

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pub fn new( input: &'a Queue<u8, BUFFER_SIZE>, output_fn: OutputFn, user_programs: &'a [Program], ) -> Self

Creates a new Shell.

Output function is then used as a callback by uprint! and uprintln! macros. Provided user programs will be listed and executable along with builtin, example programs.

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pub fn run(&mut self) -> !

Runs the shell forever until the system stops the task.

Blocks waiting for data to be available in input queue.

Supports:

  • ENTER - attempts to parse and execute command stored inside the buffer.
  • CTRL+C - attempts to kill the last executed program.
  • BACKSPACE - removes the last character in buffer if available.
  • _ - pushes the character into the buffer, if not full, check BUFFER_SIZE.

Auto Trait Implementations§

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impl<'a> Freeze for Shell<'a>

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impl<'a> !RefUnwindSafe for Shell<'a>

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impl<'a> Send for Shell<'a>

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impl<'a> Sync for Shell<'a>

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impl<'a> Unpin for Shell<'a>

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impl<'a> UnsafeUnpin for Shell<'a>

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impl<'a> !UnwindSafe for Shell<'a>

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.