Enum Expr

pub enum Expr {
    Sym(String),
    Eq(BTreeSet<Expr>),
    Ne(BTreeSet<Expr>),
    Lt(BTreeSet<Expr>),
    Gt(BTreeSet<Expr>),
    Lte(BTreeSet<Expr>),
    Gte(BTreeSet<Expr>),
    And(BTreeSet<Expr>),
    Or(BTreeSet<Expr>),
    Sub(Box<Expr>),
    Not(Box<Expr>),
}

An expression can be a symbol, a comparison expression, a negation, a subexpression (with parentheses) and an ‘bitwise and’ or ‘bitwise or’ expression. It can also be a macro resulting into a valid value.

Variants

Sym(String)

Eq(BTreeSet<Expr>)

Ne(BTreeSet<Expr>)

Lt(BTreeSet<Expr>)

Gt(BTreeSet<Expr>)

Lte(BTreeSet<Expr>)

Gte(BTreeSet<Expr>)

And(BTreeSet<Expr>)

Or(BTreeSet<Expr>)

Sub(Box<Expr>)

Not(Box<Expr>)

Implementations

impl Expr

pub fn is_sym(&self) -> bool

pub fn is_not(&self) -> bool

pub fn is_sub(&self) -> bool

pub fn is_comparison(&self) -> bool

pub fn contains(&self, expr: &Expr) -> bool

pub fn is_eq(&self) -> bool

pub fn is_ne(&self) -> bool

pub fn is_lt(&self) -> bool

pub fn is_gt(&self) -> bool

pub fn is_gte(&self) -> bool

pub fn is_lte(&self) -> bool

pub fn is_and(&self) -> bool

pub fn is_or(&self) -> bool

pub fn get_sym(&self) -> Option<String>

pub fn get_not_expr(&self) -> Option<Expr>

pub fn get_sub_expr(&self) -> Option<Expr>

pub fn len(&self) -> usize

Trait Implementations

impl Clone for Expr

fn clone(&self) -> Expr

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Expr

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

Formats the value using the given formatter.

impl Hash for Expr

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl IntoIterator for Expr

type Item = Expr

The type of the elements being iterated over.

type IntoIter = IntoIter<<Expr as IntoIterator>::Item>

Which kind of iterator are we turning this into?

fn into_iter(self) -> Self::IntoIter

Creates an iterator from a value.

impl Ord for Expr

fn cmp(&self, other: &Expr) -> Ordering

This method returns an Ordering between self and other.

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

where Self: Sized,

Compares and returns the maximum of two values.

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

where Self: Sized,

Compares and returns the minimum of two values.

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

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for Expr

fn eq(&self, other: &Expr) -> 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 PartialOrd for Expr

fn partial_cmp(&self, other: &Expr) -> Option<Ordering>

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

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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

impl Eq for Expr

impl StructuralPartialEq for Expr