Struct GuestFunctionDefinition 

pub struct GuestFunctionDefinition<F: Copy> {
    pub function_name: String,
    pub parameter_types: Vec<ParameterType>,
    pub return_type: ReturnType,
    pub function_pointer: F,
}

The definition of a function exposed from the guest to the host.

The type parameter F is the function pointer type. For Rust guests this is GuestFunc; the C API uses its own CGuestFunc type.

Fields

function_name: String

The function name

parameter_types: Vec<ParameterType>

The type of the parameter values for the host function call.

return_type: ReturnType

The type of the return value from the host function call

function_pointer: F

The function pointer to the guest function.

Implementations

impl<F: Copy> GuestFunctionDefinition<F>

pub fn new( function_name: String, parameter_types: Vec<ParameterType>, return_type: ReturnType, function_pointer: F, ) -> Self

Create a new GuestFunctionDefinition.

pub fn from_fn<Output, Args>( function_name: String, function: impl AsGuestFunctionDefinition<Output, Args>, ) -> GuestFunctionDefinition<GuestFunc>

where Args: ParameterTuple, Output: SupportedReturnType,

Create a new GuestFunctionDefinition<GuestFunc> from a function that implements AsGuestFunctionDefinition.

pub fn verify_parameters(&self, parameter_types: &[ParameterType]) -> Result<()>

Verify that self has same signature as the provided parameter_types.

Trait Implementations

impl<F: Clone + Copy> Clone for GuestFunctionDefinition<F>

fn clone(&self) -> GuestFunctionDefinition<F>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<F: Debug + Copy> Debug for GuestFunctionDefinition<F>

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

Formats the value using the given formatter.