Enum pupil::op::Order

#[repr(i8)]
pub enum Order {
    FnBarrier,
    Operators,
    AddSub,
    MulDiv,
    IMul,
    Pow,
    PowRightAssoc,
    Unary,
}

Operator precedence.

Variants

FnBarrier

Function barrier hack.

Prevents precedence rules from pushing past a function application. Only an explicit closing ) can push past it.

Operators

Lowest precedence for operators, helper for FnBarrier.

AddSub

Addition and subtraction precedence.

MulDiv

Multiplication and division precedence.

IMul

Implicit multiplication precedence.

This makes implicit mul bind tightly under division allowing 1/2ans to be evaulated as 1/(2*ans). But not high enough to overpower exponentiation so 2ans^3 will be evaluated as 2*(ans^3).

Pow

Exponentiation precedence.

PowRightAssoc

Helper for Pow’s right associativity.

Unary

Unary operator precedence.

Trait Implementations

impl Copy for Order

impl Clone for Order

fn clone(&self) -> Order

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Order

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.

impl Eq for Order

impl PartialEq for Order

fn eq(&self, __arg_0: &Order) -> bool

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

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

This method tests for !=.

impl Ord for Order

fn cmp(&self, __arg_0: &Order) -> Ordering

This method returns an Ordering between self and other.

impl PartialOrd for Order

fn partial_cmp(&self, __arg_0: &Order) -> 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.