Struct EnvName 

pub struct EnvName(/* private fields */);

The name of an environment variable: not empty, without = and without a NUL. It is kept as written; a process environment matches it ASCII-case-insensitively.

Implementations

impl EnvName

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

text as a variable name.

Errors

FieldError::InvalidEnvName when text is empty or holds a =, FieldError::Nul when it holds a NUL.

pub fn as_str(&self) -> &str

The name as written.

Trait Implementations

impl Clone for EnvName

fn clone(&self) -> EnvName

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for EnvName

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

Formats the value using the given formatter.

impl Display for EnvName

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

Formats the value using the given formatter.

impl Eq for EnvName

impl FromStr for EnvName

fn from_str(s: &str) -> Result<Self, Self::Err>

See EnvName::new.

type Err = FieldError

The associated error which can be returned from parsing.

impl Hash for EnvName

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 EnvName

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

Equality operator ==.

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

Inequality operator !=.

impl PartialEq<&str> for EnvName

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for EnvName