Enum Literal

pub enum Literal {
    Scalar(ScalarValue),
    Float(FloatValue),
    Bool(bool),
    Char(char),
    ByteStr(Vec<u8>),
    Str(String),
}

A primitive value.

Those are for instance used for the constant operands crate::expressions::Operand::Const

Variants

Scalar(ScalarValue)

Float(FloatValue)

Bool(bool)

Char(char)

ByteStr(Vec<u8>)

Str(String)

Implementations

impl Literal

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

impl Literal

pub fn is_scalar(&self) -> bool

pub fn is_float(&self) -> bool

pub fn is_bool(&self) -> bool

pub fn is_char(&self) -> bool

pub fn is_byte_str(&self) -> bool

pub fn is_str(&self) -> bool

impl Literal

pub fn as_scalar(&self) -> Option<&ScalarValue>

pub fn as_float(&self) -> Option<&FloatValue>

pub fn as_bool(&self) -> Option<&bool>

pub fn as_char(&self) -> Option<&char>

pub fn as_byte_str(&self) -> Option<&Vec<u8>>

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

impl Literal

pub fn as_scalar_mut(&mut self) -> Option<&mut ScalarValue>

pub fn as_float_mut(&mut self) -> Option<&mut FloatValue>

pub fn as_bool_mut(&mut self) -> Option<&mut bool>

pub fn as_char_mut(&mut self) -> Option<&mut char>

pub fn as_byte_str_mut(&mut self) -> Option<&mut Vec<u8>>

pub fn as_str_mut(&mut self) -> Option<&mut String>

Trait Implementations

impl AstVisitable for Literal

fn drive<V: VisitAst>(&self, v: &mut V) -> ControlFlow<V::Break>

Recursively visit this type with the provided visitor. This calls the visitor’s visit_$any method if it exists, otherwise visit_inner.

fn drive_mut<V: VisitAstMut>(&mut self, v: &mut V) -> ControlFlow<V::Break>

Recursively visit this type with the provided visitor. This calls the visitor’s visit_$any method if it exists, otherwise visit_inner.

fn name(&self) -> &'static str

The name of the type, used for debug logging.

fn dyn_visit<T: AstVisitable>(&self, f: impl FnMut(&T))

Visit all occurrences of that type inside self, in pre-order traversal.

fn dyn_visit_mut<T: AstVisitable>(&mut self, f: impl FnMut(&mut T))

Visit all occurrences of that type inside self, in pre-order traversal.

impl Clone for Literal

fn clone(&self) -> Literal

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Literal

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Literal

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for Literal

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

Formats the value using the given formatter.

impl<'s, V> Drive<'s, V> for Literal

where V: Visitor + Visit<'s, ScalarValue> + Visit<'s, FloatValue>,

fn drive_inner(&'s self, visitor: &mut V) -> ControlFlow<V::Break>

Call v.visit() on the immediate contents of self.

impl<'s, V> DriveMut<'s, V> for Literal

where V: Visitor + VisitMut<'s, ScalarValue> + VisitMut<'s, FloatValue>,

fn drive_inner_mut(&'s mut self, visitor: &mut V) -> ControlFlow<V::Break>

Call v.visit() on the immediate contents of self.

impl Hash for Literal

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 Ord for Literal

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

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

fn partial_cmp(&self, other: &Literal) -> 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 Serialize for Literal

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for Literal

impl StructuralPartialEq for Literal