Trait mockable::Env

source · 
pub trait Env: Send + Sync {

Show 39 methods    // Required methods
    fn bool(&self, key: &str) -> Option<Result<bool, ParseBoolError>>;
    fn char(&self, key: &str) -> Option<Result<char, ParseCharError>>;
    fn f32(&self, key: &str) -> Option<Result<f32, ParseFloatError>>;
    fn f64(&self, key: &str) -> Option<Result<f64, ParseFloatError>>;
    fn i8(&self, key: &str) -> Option<Result<i8, ParseIntError>>;
    fn i16(&self, key: &str) -> Option<Result<i16, ParseIntError>>;
    fn i32(&self, key: &str) -> Option<Result<i32, ParseIntError>>;
    fn i64(&self, key: &str) -> Option<Result<i64, ParseIntError>>;
    fn i128(&self, key: &str) -> Option<Result<i128, ParseIntError>>;
    fn ip_addr(&self, key: &str) -> Option<Result<IpAddr, AddrParseError>>;
    fn ipv4_addr(&self, key: &str) -> Option<Result<Ipv4Addr, AddrParseError>>;
    fn ipv6_addr(&self, key: &str) -> Option<Result<Ipv6Addr, AddrParseError>>;
    fn isize(&self, key: &str) -> Option<Result<isize, ParseIntError>>;
    fn non_zero_i8(&self, key: &str) -> Option<Result<NonZeroI8, ParseIntError>>;
    fn non_zero_i16(
        &self,
        key: &str
    ) -> Option<Result<NonZeroI16, ParseIntError>>;
    fn non_zero_i32(
        &self,
        key: &str
    ) -> Option<Result<NonZeroI32, ParseIntError>>;
    fn non_zero_i64(
        &self,
        key: &str
    ) -> Option<Result<NonZeroI64, ParseIntError>>;
    fn non_zero_i128(
        &self,
        key: &str
    ) -> Option<Result<NonZeroI128, ParseIntError>>;
    fn non_zero_isize(
        &self,
        key: &str
    ) -> Option<Result<NonZeroIsize, ParseIntError>>;
    fn non_zero_u8(&self, key: &str) -> Option<Result<NonZeroU8, ParseIntError>>;
    fn non_zero_u16(
        &self,
        key: &str
    ) -> Option<Result<NonZeroU16, ParseIntError>>;
    fn non_zero_u32(
        &self,
        key: &str
    ) -> Option<Result<NonZeroU32, ParseIntError>>;
    fn non_zero_u64(
        &self,
        key: &str
    ) -> Option<Result<NonZeroU64, ParseIntError>>;
    fn non_zero_u128(
        &self,
        key: &str
    ) -> Option<Result<NonZeroU128, ParseIntError>>;
    fn non_zero_usize(
        &self,
        key: &str
    ) -> Option<Result<NonZeroUsize, ParseIntError>>;
    fn os_string(&self, key: &str) -> Option<OsString>;
    fn path_buf(&self, key: &str) -> Option<PathBuf>;
    fn raw(&self, key: &str) -> Result<String, VarError>;
    fn socket_addr(
        &self,
        key: &str
    ) -> Option<Result<SocketAddr, AddrParseError>>;
    fn socket_addr_v4(
        &self,
        key: &str
    ) -> Option<Result<SocketAddrV4, AddrParseError>>;
    fn socket_addr_v6(
        &self,
        key: &str
    ) -> Option<Result<SocketAddrV6, AddrParseError>>;
    fn string(&self, key: &str) -> Option<String>;
    fn strings(&self, key: &str, sep: &str) -> Option<Vec<String>>;
    fn u8(&self, key: &str) -> Option<Result<u8, ParseIntError>>;
    fn u16(&self, key: &str) -> Option<Result<u16, ParseIntError>>;
    fn u32(&self, key: &str) -> Option<Result<u32, ParseIntError>>;
    fn u64(&self, key: &str) -> Option<Result<u64, ParseIntError>>;
    fn u128(&self, key: &str) -> Option<Result<u128, ParseIntError>>;
    fn usize(&self, key: &str) -> Option<Result<usize, ParseIntError>>;

}
Expand description

A trait for getting environment variables.

Example.

Required Methods§

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fn bool(&self, key: &str) -> Option<Result<bool, ParseBoolError>>

Returns the value of the environment variable key as a bool.

If the environment variable is not present or it is not a valid unicode, None is returned. If the environment variable is not a valid bool, an error is returned.

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fn char(&self, key: &str) -> Option<Result<char, ParseCharError>>

Returns the value of the environment variable key as a char.

If the environment variable is not present or it is not a valid unicode, None is returned. If the environment variable is not a valid char, an error is returned.

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fn f32(&self, key: &str) -> Option<Result<f32, ParseFloatError>>

Returns the value of the environment variable key as a f32.

If the environment variable is not present or it is not a valid unicode, None is returned. If the environment variable is not a valid f32, an error is returned.

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fn f64(&self, key: &str) -> Option<Result<f64, ParseFloatError>>

Returns the value of the environment variable key as a f64.

If the environment variable is not present or it is not a valid unicode, None is returned. If the environment variable is not a valid f64, an error is returned.

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fn i8(&self, key: &str) -> Option<Result<i8, ParseIntError>>

Returns the value of the environment variable key as a i8.

If the environment variable is not present or it is not a valid unicode, None is returned. If the environment variable is not a valid i8, an error is returned.

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fn i16(&self, key: &str) -> Option<Result<i16, ParseIntError>>

Returns the value of the environment variable key as a i16.

If the environment variable is not present or it is not a valid unicode, None is returned. If the environment variable is not a valid i16, an error is returned.

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fn i32(&self, key: &str) -> Option<Result<i32, ParseIntError>>

Returns the value of the environment variable key as a i32.

If the environment variable is not present or it is not a valid unicode, None is returned. If the environment variable is not a valid i32, an error is returned.

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fn i64(&self, key: &str) -> Option<Result<i64, ParseIntError>>

Returns the value of the environment variable key as a i64.

If the environment variable is not present or it is not a valid unicode, None is returned. If the environment variable is not a valid i64, an error is returned.

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fn i128(&self, key: &str) -> Option<Result<i128, ParseIntError>>

Returns the value of the environment variable key as a i128.

If the environment variable is not present or it is not a valid unicode, None is returned. If the environment variable is not a valid i128, an error is returned.

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fn ip_addr(&self, key: &str) -> Option<Result<IpAddr, AddrParseError>>

Returns the value of the environment variable key as a IpAddr.

If the environment variable is not present or it is not a valid unicode, None is returned. If the environment variable is not a valid IpAddr, an error is returned.

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fn ipv4_addr(&self, key: &str) -> Option<Result<Ipv4Addr, AddrParseError>>

Returns the value of the environment variable key as a Ipv4Addr.

If the environment variable is not present or it is not a valid unicode, None is returned. If the environment variable is not a valid Ipv4Addr, an error is returned.

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fn ipv6_addr(&self, key: &str) -> Option<Result<Ipv6Addr, AddrParseError>>

Returns the value of the environment variable key as a Ipv6Addr.

If the environment variable is not present or it is not a valid unicode, None is returned. If the environment variable is not a valid Ipv6Addr, an error is returned.

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fn isize(&self, key: &str) -> Option<Result<isize, ParseIntError>>

Returns the value of the environment variable key as a isize.

If the environment variable is not present or it is not a valid unicode, None is returned. If the environment variable is not a valid isize, an error is returned.

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fn non_zero_i8(&self, key: &str) -> Option<Result<NonZeroI8, ParseIntError>>

Returns the value of the environment variable key as a NonZeroI8.

If the environment variable is not present or it is not a valid unicode, None is returned. If the environment variable is not a valid NonZeroI8, an error is returned.

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fn non_zero_i16(&self, key: &str) -> Option<Result<NonZeroI16, ParseIntError>>

Returns the value of the environment variable key as a NonZeroI16.

If the environment variable is not present or it is not a valid unicode, None is returned. If the environment variable is not a valid NonZeroI16, an error is returned.

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fn non_zero_i32(&self, key: &str) -> Option<Result<NonZeroI32, ParseIntError>>

Returns the value of the environment variable key as a NonZeroI32.

If the environment variable is not present or it is not a valid unicode, None is returned. If the environment variable is not a valid NonZeroI32, an error is returned.

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fn non_zero_i64(&self, key: &str) -> Option<Result<NonZeroI64, ParseIntError>>

Returns the value of the environment variable key as a NonZeroI64.

If the environment variable is not present or it is not a valid unicode, None is returned. If the environment variable is not a valid NonZeroI64, an error is returned.

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fn non_zero_i128(&self, key: &str) -> Option<Result<NonZeroI128, ParseIntError>>

Returns the value of the environment variable key as a NonZeroI128.

If the environment variable is not present or it is not a valid unicode, None is returned. If the environment variable is not a valid NonZeroI128, an error is returned.

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fn non_zero_isize( &self, key: &str ) -> Option<Result<NonZeroIsize, ParseIntError>>

Returns the value of the environment variable key as a NonZeroIsize.

If the environment variable is not present or it is not a valid unicode, None is returned. If the environment variable is not a valid NonZeroIsize, an error is returned.

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fn non_zero_u8(&self, key: &str) -> Option<Result<NonZeroU8, ParseIntError>>

Returns the value of the environment variable key as a NonZeroU8.

If the environment variable is not present or it is not a valid unicode, None is returned. If the environment variable is not a valid NonZeroU8, an error is returned.

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fn non_zero_u16(&self, key: &str) -> Option<Result<NonZeroU16, ParseIntError>>

Returns the value of the environment variable key as a NonZeroU16.

If the environment variable is not present or it is not a valid unicode, None is returned. If the environment variable is not a valid NonZeroU16, an error is returned.

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fn non_zero_u32(&self, key: &str) -> Option<Result<NonZeroU32, ParseIntError>>

Returns the value of the environment variable key as a NonZeroU32.

If the environment variable is not present or it is not a valid unicode, None is returned. If the environment variable is not a valid NonZeroU32, an error is returned.

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fn non_zero_u64(&self, key: &str) -> Option<Result<NonZeroU64, ParseIntError>>

Returns the value of the environment variable key as a NonZeroU64.

If the environment variable is not present or it is not a valid unicode, None is returned. If the environment variable is not a valid NonZeroU64, an error is returned.

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fn non_zero_u128(&self, key: &str) -> Option<Result<NonZeroU128, ParseIntError>>

Returns the value of the environment variable key as a NonZeroU128.

If the environment variable is not present or it is not a valid unicode, None is returned. If the environment variable is not a valid NonZeroU128, an error is returned.

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fn non_zero_usize( &self, key: &str ) -> Option<Result<NonZeroUsize, ParseIntError>>

Returns the value of the environment variable key as a NonZeroUsize.

If the environment variable is not present or it is not a valid unicode, None is returned. If the environment variable is not a valid NonZeroUsize, an error is returned.

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fn os_string(&self, key: &str) -> Option<OsString>

Returns the value of the environment variable key as a OsString.

If the environment variable is not present or it is not a valid unicode, None is returned. If the environment variable is not a valid OsString, an error is returned.

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fn path_buf(&self, key: &str) -> Option<PathBuf>

Returns the value of the environment variable key as a PathBuf.

If the environment variable is not present or it is not a valid unicode, None is returned. If the environment variable is not a valid PathBuf, an error is returned.

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fn raw(&self, key: &str) -> Result<String, VarError>

Returns the value of the environment variable key as a String.

If the environment variable is not present or it is not a valid unicode, an error is returned. See std::env::var for more details.

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fn socket_addr(&self, key: &str) -> Option<Result<SocketAddr, AddrParseError>>

Returns the value of the environment variable key as a SocketAddr.

If the environment variable is not present, None is returned. If the environment variable is not a valid SocketAddr, an error is returned.

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fn socket_addr_v4( &self, key: &str ) -> Option<Result<SocketAddrV4, AddrParseError>>

Returns the value of the environment variable key as a SocketAddrV4.

If the environment variable is not present, None is returned. If the environment variable is not a valid SocketAddrV4, an error is returned.

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fn socket_addr_v6( &self, key: &str ) -> Option<Result<SocketAddrV6, AddrParseError>>

Returns the value of the environment variable key as a SocketAddrV6.

If the environment variable is not present, None is returned. If the environment variable is not a valid SocketAddrV6, an error is returned.

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fn string(&self, key: &str) -> Option<String>

Returns the value of the environment variable key as a String.

If the environment variable is not present or it is not a valid unicode, None is returned.

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fn strings(&self, key: &str, sep: &str) -> Option<Vec<String>>

Returns the value of the environment variable key as a Vec<String>.

The value is split by sep and each item is trimmed. If the environment variable is not present or it is not a valid unicode, None is returned.

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fn u8(&self, key: &str) -> Option<Result<u8, ParseIntError>>

Returns the value of the environment variable key as a u8.

If the environment variable is not present or it is not a valid unicode, None is returned. If the environment variable is not a valid u8, an error is returned.

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fn u16(&self, key: &str) -> Option<Result<u16, ParseIntError>>

Returns the value of the environment variable key as a u16.

If the environment variable is not present or it is not a valid unicode, None is returned. If the environment variable is not a valid u16, an error is returned.

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fn u32(&self, key: &str) -> Option<Result<u32, ParseIntError>>

Returns the value of the environment variable key as a u32.

If the environment variable is not present or it is not a valid unicode, None is returned. If the environment variable is not a valid u32, an error is returned.

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fn u64(&self, key: &str) -> Option<Result<u64, ParseIntError>>

Returns the value of the environment variable key as a u64.

If the environment variable is not present or it is not a valid unicode, None is returned. If the environment variable is not a valid u64, an error is returned.

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fn u128(&self, key: &str) -> Option<Result<u128, ParseIntError>>

Returns the value of the environment variable key as a u128.

If the environment variable is not present or it is not a valid unicode, None is returned. If the environment variable is not a valid u128, an error is returned.

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fn usize(&self, key: &str) -> Option<Result<usize, ParseIntError>>

Returns the value of the environment variable key as a usize.

If the environment variable is not present or it is not a valid unicode, None is returned. If the environment variable is a valid usize, an error is returned.

Implementors§