Struct SubrFn

pub(crate) struct SubrFn {
    pub(crate) subr: for<'ob> fn(_: usize, _: &mut Rt<Env<'_>>, _: &'ob mut Context<'_>) -> Result<Gc<ObjectType<'ob>>>,
    pub(crate) args: FnArgs,
    pub(crate) name: &'static str,
}

Fields

subr: for<'ob> fn(_: usize, _: &mut Rt<Env<'_>>, _: &'ob mut Context<'_>) -> Result<Gc<ObjectType<'ob>>>

args: FnArgs

name: &'static str

Implementations

impl SubrFn

pub(crate) fn call<'ob>( &self, arg_cnt: usize, env: &mut Rt<Env<'_>>, cx: &'ob mut Context<'_>, ) -> Result<Gc<ObjectType<'ob>>>

Trait Implementations

impl PartialEq for SubrFn

fn eq(&self, other: &Self) -> 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 TaggedPtr for &SubrFn

const TAG: Tag = Tag::SubrFn

Tag value. This is only applicable to base values. Use Int for sum types.

type Ptr = SubrFn

The type of object being pointed to. This will be different for all implementors.

unsafe fn from_obj_ptr(ptr: *const u8) -> Self

Given an untyped pointer, reinterpret to self.

fn get_ptr(self) -> *const Self::Ptr

Get the underlying pointer.

unsafe fn tag_ptr(ptr: *const Self::Ptr) -> Gc<Self>

Given a pointer to Ptr return a Tagged pointer.

fn untag(val: Gc<Self>) -> Self

Remove the tag from the Gc<T> and return the inner type. If it is base type then it will only have a single possible value and can be untagged without checks, but sum types need to create all values they can hold. We use tagged base types to let us reinterpret bits without actually modify them.

fn tag(self) -> Gc<Self>

Given the type, return a tagged version of it. When using a sum type or an immediate value like i64, we override this method to set the proper tag.

impl<'ob> TryFrom<Gc<ObjectType<'ob>>> for &'ob SubrFn

type Error = TypeError

The type returned in the event of a conversion error.

fn try_from(obj: Gc<ObjectType<'ob>>) -> Result<Self, Self::Error>

Performs the conversion.

impl<'new> WithLifetime<'new> for &SubrFn

type Out = &'new SubrFn

unsafe fn with_lifetime(self) -> Self::Out

impl<'ob> From<&'ob SubrFn> for Gc<FunctionType<'ob>>

fn from(x: &'ob SubrFn) -> Self

Converts to this type from the input type.

impl<'ob> From<&'ob SubrFn> for Gc<ObjectType<'ob>>

fn from(x: &'ob SubrFn) -> Self

Converts to this type from the input type.

impl Debug for SubrFn

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

Formats the value using the given formatter.

impl Display for SubrFn

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

Formats the value using the given formatter.

impl Eq for SubrFn