Struct PragmaSnapshot 

pub struct PragmaSnapshot { /* private fields */ }

Immutable compile-time snapshot of pragma state.

This is the stable value object returned by position queries, and the same type used by lexical save/restore operations while building an environment.

Implementations

impl PragmaSnapshot

pub fn from_state(state: PragmaState) -> PragmaSnapshot

Create a snapshot from a concrete state value.

pub fn state(&self) -> &PragmaState

Borrow the underlying state.

pub fn strict_enabled(&self) -> bool

Whether all strict categories are active in this snapshot.

pub fn warnings_enabled(&self) -> bool

Whether warnings are globally active in this snapshot.

pub fn has_feature(&self, feature: &str) -> bool

Whether a feature is enabled in this snapshot.

pub fn is_warning_active(&self, category: &str) -> bool

Returns true if warnings are active for the given category.

Trait Implementations

impl Clone for PragmaSnapshot

fn clone(&self) -> PragmaSnapshot

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PragmaSnapshot

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

Formats the value using the given formatter.

impl Default for PragmaSnapshot

fn default() -> PragmaSnapshot

Returns the “default value” for a type.

impl From<PragmaSnapshot> for PragmaState

fn from(snapshot: PragmaSnapshot) -> PragmaState

Converts to this type from the input type.

impl From<PragmaState> for PragmaSnapshot

fn from(state: PragmaState) -> PragmaSnapshot

Converts to this type from the input type.

impl PartialEq for PragmaSnapshot

fn eq(&self, other: &PragmaSnapshot) -> 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 PragmaSnapshot