Struct EnvEntry 

pub struct EnvEntry { /* private fields */ }

One environment entry of a rule: a variable and the value it gets, or no value, which removes the variable.

Implementations

impl EnvEntry

pub fn new(name: EnvName, value: impl Into<String>) -> Result<Self, FieldError>

The entry that sets name to value. An empty value removes the variable, as on the wire, where an empty value is a removal.

Errors

FieldError::Nul when value holds a NUL.

pub const fn remove(name: EnvName) -> Self

The entry that removes name.

pub const fn name(&self) -> &EnvName

The variable.

pub fn value(&self) -> Option<&str>

The value it gets, or None when the entry removes it.

Trait Implementations

impl Clone for EnvEntry

fn clone(&self) -> EnvEntry

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for EnvEntry

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

Formats the value using the given formatter.

impl Display for EnvEntry

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

NAME=value, or NAME= for a removal.

impl Eq for EnvEntry

impl Hash for EnvEntry

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 PartialEq for EnvEntry

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for EnvEntry