Trait salak::FromEnvironment

pub trait FromEnvironment: Sized {
    fn from_env(
        prefix: &str, 
        property: Option<Property>, 
        env: &impl Environment
    ) -> Result<Self, PropertyError>;

    fn check_is_empty(&self) -> bool { ... }
}

Convert from Environment.

Required methods

fn from_env(
    prefix: &str,
    property: Option<Property>,
    env: &impl Environment
) -> Result<Self, PropertyError>

Generate object from Environment.

• prefix - Property prefix.
• property - Property value with key is prefix.
• env - Instance of Environment

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Provided methods

fn check_is_empty(&self) -> bool

Empty check for some containers, such as Vec<T> or Option<T>.

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Implementations on Foreign Types

impl<P: FromEnvironment> FromEnvironment for Option<P>

fn from_env(
    n: &str,
    property: Option<Property>,
    env: &impl Environment
) -> Result<Self, PropertyError>

fn from_err(err: PropertyError) -> Result<Self, PropertyError>

fn check_is_empty(&self) -> bool

fn load_default() -> Vec<(String, Property)>

impl<P: FromEnvironment> FromEnvironment for Vec<P>

fn from_env(
    name: &str,
    _: Option<Property>,
    env: &impl Environment
) -> Result<Self, PropertyError>

fn check_is_empty(&self) -> bool

impl<T, S> FromEnvironment for HashSet<T, S> where
    T: Eq + Hash + FromEnvironment,
    S: BuildHasher + Default, 

fn from_env(
    name: &str,
    p: Option<Property>,
    env: &impl Environment
) -> Result<Self, PropertyError>

fn check_is_empty(&self) -> bool

impl<T: FromEnvironment> FromEnvironment for HashMap<String, T>

fn from_env(
    name: &str,
    _: Option<Property>,
    env: &impl Environment
) -> Result<Self, PropertyError>

fn check_is_empty(&self) -> bool

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Implementors

impl<P: FromProperty> FromEnvironment for P

fn from_env(
    n: &str,
    property: Option<Property>,
    _: &impl Environment
) -> Result<Self, PropertyError>

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