Struct EnvValueResolver 

pub struct EnvValueResolver;

Default ValueResolver — resolves variables from the process environment via std::env::var.

Trait Implementations

impl Clone for EnvValueResolver

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for EnvValueResolver

impl Debug for EnvValueResolver

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

Formats the value using the given formatter.

impl Default for EnvValueResolver

fn default() -> Self

Returns the “default value” for a type.

impl ValueResolver for EnvValueResolver

fn resolve( &self, var_name: &str, location: &str, ) -> Result<String, SubstitutionError>

Resolve var_name to its value.