Struct HostFunctionDefinition

pub struct HostFunctionDefinition {
    pub function_name: String,
    pub parameter_types: Option<Vec<ParameterType>>,
    pub return_type: ReturnType,
}

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

Fields

function_name: String

The function name

parameter_types: Option<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

Implementations

impl HostFunctionDefinition

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

Create a new HostFunctionDefinition.

pub fn verify_equal_parameter_types( &self, function_call_parameter_types: &[ParameterType], ) -> Result<()>

Verify that the function call has the correct parameter types.

Trait Implementations

impl Clone for HostFunctionDefinition

fn clone(&self) -> HostFunctionDefinition

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for HostFunctionDefinition

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

Formats the value using the given formatter.

impl Default for HostFunctionDefinition

fn default() -> HostFunctionDefinition

Returns the “default value” for a type.

impl PartialEq for HostFunctionDefinition

fn eq(&self, other: &HostFunctionDefinition) -> 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 TryFrom<&[u8]> for HostFunctionDefinition

type Error = Error

The type returned in the event of a conversion error.

fn try_from(value: &[u8]) -> Result<Self>

Performs the conversion.

impl TryFrom<&HostFunctionDefinition> for Vec<u8>

type Error = Error

The type returned in the event of a conversion error.

fn try_from(hfd: &HostFunctionDefinition) -> Result<Vec<u8>>

Performs the conversion.

impl Eq for HostFunctionDefinition

impl StructuralPartialEq for HostFunctionDefinition