Struct exmex::Operator

pub struct Operator<'a, T: Clone> { /* fields omitted */ }

Operators can be custom-defined by the library-user in terms of this struct.

Implementations

impl<'a, T: Clone> Operator<'a, T>

pub fn make_bin(repr: &'a str, bin_op: BinOp<T>) -> Operator<'a, T>

Creates a binary operator.

pub fn make_unary(repr: &'a str, unary_op: fn(_: T) -> T) -> Operator<'a, T>

Creates a unary operator.

pub fn make_bin_unary(
    repr: &'a str,
    bin_op: BinOp<T>,
    unary_op: fn(_: T) -> T
) -> Operator<'a, T>

Creates an operator that is either unary or binary based on its positioning in the string to be parsed. For instance, - as defined in DefaultOpsFactory is unary in -x and binary in 2-x.

pub fn make_constant(repr: &'a str, constant: T) -> Operator<'a, T>

Creates a constant operator. If an operator is constant it cannot be additionally binary or unary.

pub fn bin(&self) -> ExResult<BinOp<T>>

pub fn unary(&self) -> ExResult<fn(_: T) -> T>

pub fn repr(&self) -> &'a str

pub fn has_bin(&self) -> bool

pub fn has_unary(&self) -> bool

pub fn constant(&self) -> Option<T>

Trait Implementations

impl<'a, T: Clone> Clone for Operator<'a, T>

fn clone(&self) -> Operator<'a, T>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'a, T: Debug + Clone> Debug for Operator<'a, T>

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

Formats the value using the given formatter.

impl<'a, T: Ord + Clone> Ord for Operator<'a, T>

fn cmp(&self, other: &Operator<'a, T>) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

Restrict a value to a certain interval.

impl<'a, T: PartialEq + Clone> PartialEq<Operator<'a, T>> for Operator<'a, T>

fn eq(&self, other: &Operator<'a, T>) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Operator<'a, T>) -> bool

This method tests for !=.

impl<'a, T: PartialOrd + Clone> PartialOrd<Operator<'a, T>> for Operator<'a, T>

fn partial_cmp(&self, other: &Operator<'a, T>) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl<'a, T: Eq + Clone> Eq for Operator<'a, T>

impl<'a, T: Clone> StructuralEq for Operator<'a, T>

impl<'a, T: Clone> StructuralPartialEq for Operator<'a, T>