Struct casbin::rhai::plugin::FuncRegistration

pub struct FuncRegistration { /* private fields */ }

Type for fine-tuned module function registration.

Implementations

impl FuncRegistration

pub fn new(name: impl Into<SmartString<LazyCompact>>) -> FuncRegistration

Create a new FuncRegistration.

Defaults

• Accessibility: The function namespace is FnNamespace::Internal.

• Purity: The function is assumed to be pure unless it is a property setter or an index setter.

• Volatility: The function is assumed to be non-volatile – i.e. it guarantees the same result for the same input(s).

• Metadata: No metadata for the function is registered.

let mut module = Module::new();

fn inc(x: i64) -> i64 { x + 1 }

let f = FuncRegistration::new("inc")
    .with_namespace(FnNamespace::Global)
    .set_into_module(&mut module, inc);

let hash = f.hash;

assert!(module.contains_fn(hash));

pub fn new_getter(prop: impl AsRef<str>) -> FuncRegistration

Create a new FuncRegistration for a property getter.

Not available under no_object.

Defaults

• Accessibility: The function namespace is FnNamespace::Global.

• Purity: The function is assumed to be pure.

• Volatility: The function is assumed to be non-volatile – i.e. it guarantees the same result for the same input(s).

• Metadata: No metadata for the function is registered.

pub fn new_setter(prop: impl AsRef<str>) -> FuncRegistration

Create a new FuncRegistration for a property setter.

Not available under no_object.

Defaults

• Accessibility: The function namespace is FnNamespace::Global.

• Purity: The function is assumed to be no-pure.

• Volatility: The function is assumed to be non-volatile – i.e. it guarantees the same result for the same input(s).

• Metadata: No metadata for the function is registered.

pub fn new_index_getter() -> FuncRegistration

Create a new FuncRegistration for an index getter.

Not available under both no_index and no_object.

Defaults

• Accessibility: The function namespace is FnNamespace::Global.

• Purity: The function is assumed to be pure.

• Volatility: The function is assumed to be non-volatile – i.e. it guarantees the same result for the same input(s).

• Metadata: No metadata for the function is registered.

pub fn new_index_setter() -> FuncRegistration

Create a new FuncRegistration for an index setter.

Not available under both no_index and no_object.

Defaults

• Accessibility: The function namespace is FnNamespace::Global.

• Purity: The function is assumed to be no-pure.

• Volatility: The function is assumed to be non-volatile – i.e. it guarantees the same result for the same input(s).

• Metadata: No metadata for the function is registered.

pub fn with_namespace(self, namespace: FnNamespace) -> FuncRegistration

Set the namespace of the function.

pub fn with_purity(self, pure: bool) -> FuncRegistration

Set whether the function is pure. A pure function has no side effects.

pub fn with_volatility(self, volatile: bool) -> FuncRegistration

Set whether the function is volatile. A volatile function does not guarantee the same result for the same input(s).

pub fn register_into_engine<A, const N: usize, const X: bool, R, const F: bool, FUNC>( self, engine: &mut Engine, func: FUNC ) -> &FuncMetadata

where A: 'static, R: Variant + Clone, FUNC: RhaiNativeFunc<A, N, X, R, F> + SendSync + 'static,

Register the function into the specified Engine.

pub fn set_into_module<A, const N: usize, const X: bool, R, const F: bool, FUNC>( self, module: &mut Module, func: FUNC ) -> &FuncMetadata

where A: 'static, R: Variant + Clone, FUNC: RhaiNativeFunc<A, N, X, R, F> + SendSync + 'static,

Register the function into the specified Module.

pub fn set_into_module_raw( self, module: &mut Module, arg_types: impl AsRef<[TypeId]>, func: RhaiFunc ) -> &FuncMetadata

Register the function into the specified Module.

WARNING - Low Level API

This function is very low level. It takes a list of TypeId’s indicating the actual types of the parameters.

Panics

Panics if the type of the first parameter is Array, Map, String, ImmutableString, &str or INT and the function name indicates that it is an index getter or setter.

Indexers for arrays, object maps, strings and integers cannot be registered.

Trait Implementations

impl Clone for FuncRegistration

fn clone(&self) -> FuncRegistration

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for FuncRegistration

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

Formats the value using the given formatter.

impl Hash for FuncRegistration

fn hash<__H>(&self, state: &mut __H)

where __H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for FuncRegistration

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

This method tests for self and other values to be equal, and is used by ==.

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

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

impl Eq for FuncRegistration

impl StructuralPartialEq for FuncRegistration