Enum Value 

pub enum Value {
    Bool(bool),
    Int(i64),
    Str(String),
    Seq(Vec<Value>),
    Set(BTreeSet<Value>),
    Record(BTreeMap<String, Value>),
    Func(BTreeMap<Value, Value>),
    Infinite(Infinite),
}

A TLA+ value.

Sequences, records and functions are all functions in TLA+, and the same value must not have two representations or equality would depend on how it was written. Value::function is the only way to build one, and it picks the representation from the domain: 1..n gives a sequence, all-string gives a record, anything else stays a general function.

Variants

Bool(bool)

Int(i64)

Str(String)

Seq(Vec<Value>)

Set(BTreeSet<Value>)

Record(BTreeMap<String, Value>)

Func(BTreeMap<Value, Value>)

Infinite(Infinite)

A set too large to enumerate. Membership is decidable; iteration is not.

Implementations

impl Value

pub fn set(items: impl IntoIterator<Item = Value>) -> Value

pub fn string(s: impl Into<String>) -> Value

pub fn interval(lo: i64, hi: i64) -> Value

pub fn record(fields: impl IntoIterator<Item = (String, Value)>) -> Value

pub fn function(entries: BTreeMap<Value, Value>) -> Value

Build a function, choosing the representation its domain implies.

pub fn entries(&self) -> Option<BTreeMap<Value, Value>>

The function’s graph, for values that are functions.

pub fn domain(&self) -> Option<BTreeSet<Value>>

pub fn apply(&self, key: &Value) -> Option<Value>

pub fn type_name(&self) -> &'static str

pub fn is_set(&self) -> bool

Trait Implementations

impl Clone for Value

fn clone(&self) -> Value

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Value

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

Formats the value using the given formatter.

impl Display for Value

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

Formats the value using the given formatter.

impl Eq for Value

impl Ord for Value

fn cmp(&self, other: &Value) -> 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 Value

fn eq(&self, other: &Value) -> bool

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for Value

fn partial_cmp(&self, other: &Value) -> 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 StructuralPartialEq for Value