Struct FunctionSpec 

pub struct FunctionSpec {
    pub names: Vec<String>,
    pub num_args: usize,
    pub num_optional_args: usize,
    pub arg_types: Vec<ArgType>,
    pub allowed_in_argument: bool,
    pub allowed_in_text: bool,
    pub allowed_in_math: bool,
    pub infix: bool,
    pub primitive: bool,
    pub primitive_after_missing_optional: Option<usize>,
    pub handler: Option<FunctionHandler>,
}

The declaration of a function (name, arguments, handler).

Fields

names: Vec<String>

num_args: usize

num_optional_args: usize

arg_types: Vec<ArgType>

allowed_in_argument: bool

allowed_in_text: bool

allowed_in_math: bool

infix: bool

primitive: bool

primitive_after_missing_optional: Option<usize>

handler: Option<FunctionHandler>

Implementations

impl FunctionSpec

pub fn is_expandable(&self) -> bool

Trait Implementations

impl Clone for FunctionSpec

fn clone(&self) -> FunctionSpec

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FunctionSpec

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

Formats the value using the given formatter.

impl Default for FunctionSpec

fn default() -> Self

Returns the “default value” for a type.