Struct MfFunctionDefinition

pub struct MfFunctionDefinition {
    pub name: String,
    pub signature: FunctionSignature,
    pub executor: Box<dyn Fn(&Arguments<'_>, Option<&Arc<dyn Any + Send + Sync>>) -> Result<Variable> + 'static>,
}

自定义函数定义

Fields

name: String

函数名称

signature: FunctionSignature

函数签名

executor: Box<dyn Fn(&Arguments<'_>, Option<&Arc<dyn Any + Send + Sync>>) -> Result<Variable> + 'static>

执行器

Implementations

impl MfFunctionDefinition

pub fn new( name: String, signature: FunctionSignature, executor: Box<dyn Fn(&Arguments<'_>, Option<&Arc<dyn Any + Send + Sync>>) -> Result<Variable> + 'static>, ) -> Self

Trait Implementations

impl FunctionDefinition for MfFunctionDefinition

fn call(&self, args: Arguments<'_>) -> AnyhowResult<Variable>

fn required_parameters(&self) -> usize

fn optional_parameters(&self) -> usize

fn check_types(&self, args: &[VariableType]) -> FunctionTypecheck

fn param_type(&self, index: usize) -> Option<VariableType>

fn param_type_str(&self, index: usize) -> String

fn return_type(&self) -> VariableType

fn return_type_str(&self) -> String