Struct IsolationPolicy 

pub struct IsolationPolicy {
    pub env: ShareMode,
    pub libs: ShareMode,
    pub factory: ShareMode,
    pub registry: ShareMode,
    pub capabilities: ShareMode,
}

Per-axis ShareMode selection controlling how an evaluation is isolated from its caller.

Fields

env: ShareMode

Share mode for the lexical environment.

libs: ShareMode

Share mode for the loaded library set.

factory: ShareMode

Share mode for the object factory.

registry: ShareMode

Share mode for the registry.

capabilities: ShareMode

Share mode for the capability set.

Implementations

impl IsolationPolicy

pub fn from_expr(expr: &Expr) -> Result<Self>

Parses an isolation policy from a key/value-pair expression.

Nil or the all-shared symbol yields the default (all axes shared); otherwise a list or vector of :axis mode pairs sets each named axis.

pub fn as_value(&self, cx: &mut Cx) -> Result<Value>

Reflects the policy as a table keyed by axis name.

pub fn apply<T>( &self, cx: &mut Cx, f: impl FnOnce(&mut Cx) -> Result<T>, ) -> Result<T>

Runs f under a context derived per this policy’s axes.

Derives the env, capabilities, factory, and registry according to each axis and installs them for the duration of the call.

Trait Implementations

impl Clone for IsolationPolicy

fn clone(&self) -> IsolationPolicy

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for IsolationPolicy

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for IsolationPolicy

fn default() -> Self

Returns the “default value” for a type.

impl Eq for IsolationPolicy

impl PartialEq for IsolationPolicy

fn eq(&self, other: &IsolationPolicy) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for IsolationPolicy