# Struct config::Environment

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    pub struct Environment { /* private fields */ }

## Implementations

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### impl Environment

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#### pub fn new() -> Self

👎 Deprecated since 0.12.0:

please use ‘Environment::default’ instead

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#### pub fn with_prefix(s: &str) -> Self

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#### pub fn prefix(self, s: &str) -> Self

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#### pub fn prefix_separator(self, s: &str) -> Self

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#### pub fn separator(self, s: &str) -> Self

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#### pub fn list_separator(self, s: &str) -> Self

When set and try_parsing is true, then all environment variables will be parsed as `Vec<String>` instead of `String`. See [`with_list_parse_key`] when you want to use `Vec<String>` in combination with `String`.

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#### pub fn with_list_parse_key(self, key: &str) -> Self

Add a key which should be parsed as a list when collecting `Value`s from the environment. Once list_separator is set, the type for string is `Vec<String>`. To switch the default type back to type Strings you need to provide the keys which should be `Vec<String>` using this function.

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#### pub fn ignore_empty(self, ignore: bool) -> Self

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#### pub fn try_parsing(self, try_parsing: bool) -> Self

Note: enabling `try_parsing` can reduce performance it will try and parse each environment variable 3 times (bool, i64, f64)

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#### pub fn keep_prefix(self, keep: bool) -> Self

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#### pub fn source(self, source: Option<Map<String, String>>) -> Self

## Trait Implementations

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### impl Clone for Environment

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#### fn clone(&self) -> Environment

Returns a copy of the value. Read more

1.0.0 · source

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

Performs copy-assignment from `source`. Read more

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### impl Debug for Environment

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

Formats the value using the given formatter. Read more

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### impl Default for Environment

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#### fn default() -> Environment

Returns the “default value” for a type. Read more

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### impl Source for Environment

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#### fn clone_into_box(&self) -> Box<dyn Source + Send + Sync>

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#### fn collect(&self) -> Result<Map<String, Value>, ConfigError>

Collect all configuration properties available from this source and return a Map. Read more

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#### fn collect_to(&self, cache: &mut Value) -> Result<(), ConfigError>

Collects all configuration properties to a provided cache.

## Auto Trait Implementations

### impl RefUnwindSafe for Environment

### impl Send for Environment

### impl Sync for Environment

### impl Unpin for Environment

### impl UnwindSafe for Environment

## Blanket Implementations

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### impl<T> Any for T where
T: 'static + ?Sized,

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#### fn type_id(&self) -> TypeId

Gets the `TypeId` of `self`. Read more

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### impl<T> Borrow<T> for T where
T: ?Sized,

const: unstable · source

#### fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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### impl<T> BorrowMut<T> for T where
T: ?Sized,

const: unstable · source

#### fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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### impl<T> From<T> for T

const: unstable · source

#### fn from(t: T) -> T

Returns the argument unchanged.

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### impl<T, U> Into<U> for T where
U: From<T>,

const: unstable · source

#### fn into(self) -> U

Calls `U::from(self)`.

That is, this conversion is whatever the implementation of `From<T> for U` chooses to do.

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### impl<T> ToOwned for T where
T: Clone,

#### type Owned = T

The resulting type after obtaining ownership.

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#### fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

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#### fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more

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### impl<T, U> TryFrom<U> for T where
U: Into<T>,

#### type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

#### fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

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### impl<T, U> TryInto<U> for T where
U: TryFrom<T>,

#### type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

const: unstable · source

#### fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.