Enum E 

pub enum E {
    I(i32),
    D(f64),
    S(String),
    T(Tuple),
    Any,
    None,
}

E represents a tuple element.

Variants

I(i32)

Integer data type.

Implemented as 32-bit integer (i32).

D(f64)

Floating point data type.

Implemented as double precision (f64).

S(String)

String data type.

Implemented as String.

T(Tuple)

Tuple data type.

Implemented as vector of tuple types (Vec).

Any

Any data type.

In context of this tuple, Any stands for the wild card that is used for pattern matching when querying the tuple space for certain tuples, and marks the beginning of a matching range when searching for matching tuples.

None

None data type.

In context of this tuple, None represents “no match” when searching, and marks the end of a matching range when searching for matching tuples. All defined values will fall between Any..None.

Implementations

impl E

pub fn str<S: Into<String>>(s: S) -> E

pub fn is_defined(&self) -> bool

Returns true if one or more elements are the wildcard E::Any, recursively.

pub fn matches(&self, other: &E) -> bool

Returns true if the other tuple matches this one. Tuples match when elements in each respective position are equal, or one or both of them in a given position is the wildcard E::Any.

Trait Implementations

impl Clone for E

fn clone(&self) -> E

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for E

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

Formats the value using the given formatter.

impl Display for E

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

Formats the value using the given formatter.

impl Ord for E

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

Tuple elements have a well-defined ordering. Ordering among values of the same variant is consistent with its contained type. Ordering among variants of different types is mathematically and logically arbitrary but strongly consistent for the purpose of storage and retrieval in data structures.

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 E

fn eq(&self, other: &E) -> 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 E

fn partial_cmp(&self, other: &E) -> 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 E

impl StructuralPartialEq for E