Struct Evaluator

Source

pub struct Evaluator<'a> { /* private fields */ }

Expand description

Expression evaluator.

Evaluates AST expressions to values using the provided scope for variable lookup. Command substitution ($(...)) and command-as-condition are NOT handled here — the kernel’s async evaluator resolves those to literal values first; if one reaches this sync evaluator it is a loud EvalError.

Evaluator

Struct Evaluator Copy item path

Implementations§

impl<'a> Evaluator<'a>

pub fn new(scope: &'a mut Scope) -> Self

pub fn eval(&mut self, expr: &Expr) -> EvalResult<Value>

Auto Trait Implementations§

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

impl<'a> Freeze for Evaluator<'a>

impl<'a> RefUnwindSafe for Evaluator<'a>

impl<'a> Send for Evaluator<'a>

impl<'a> Sync for Evaluator<'a>

impl<'a> Unpin for Evaluator<'a>

impl<'a> UnsafeUnpin for Evaluator<'a>

Blanket Implementations§

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

fn type_id(&self) -> TypeId

impl<T> Borrow<T> for Twhere T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for Twhere T: ?Sized,

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

impl<T> From<T> for T

fn from(t: T) -> T

impl<T> FutureExt for T

fn with_context(self, otel_cx: Context) -> WithContext<Self> ⓘ

fn with_current_context(self) -> WithContext<Self> ⓘ

impl<T> Instrument for T

fn instrument(self, span: Span) -> Instrumented<Self> ⓘ

fn in_current_span(self) -> Instrumented<Self> ⓘ

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

fn into(self) -> U

impl<'src, T> IntoMaybe<'src, T> for Twhere T: 'src,

type Proj<U: 'src> = U

fn map_maybe<R>( self, _f: impl FnOnce(&'src T) -> &'src R, g: impl FnOnce(T) -> R, ) -> <T as IntoMaybe<'src, T>>::Proj<R>where R: 'src,

impl<T> Pointable for T

const ALIGN: usize

type Init = T

unsafe fn init(init: <T as Pointable>::Init) -> usize

unsafe fn deref<'a>(ptr: usize) -> &'a T

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

unsafe fn drop(ptr: usize)

impl<T> Same for T

type Output = T

impl<T, S> SpanWrap<S> for Twhere S: WrappingSpan<T>,

fn with_span(self, span: S) -> <S as WrappingSpan<Self>>::Spanned

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

type Error = Infallible

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

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

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

impl<V, T> VZip<V> for Twhere V: MultiLane<T>,

fn vzip(self) -> V

impl<T> WithSubscriber for T

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> ⓘwhere S: Into<Dispatch>,

fn with_current_subscriber(self) -> WithDispatch<Self> ⓘ

Struct Evaluator

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

impl<T> Borrow<T> for T
where T: ?Sized,

impl<T> BorrowMut<T> for T
where T: ?Sized,

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

impl<'src, T> IntoMaybe<'src, T> for T
where T: 'src,

fn map_maybe<R>( self, _f: impl FnOnce(&'src T) -> &'src R, g: impl FnOnce(T) -> R, ) -> <T as IntoMaybe<'src, T>>::Proj<R>
where R: 'src,

impl<T, S> SpanWrap<S> for T
where S: WrappingSpan<T>,

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

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

impl<V, T> VZip<V> for T
where V: MultiLane<T>,

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> ⓘ
where S: Into<Dispatch>,