Trait otter_api_tests::imports::failure::_core::convert::From

pub trait From<T> {
    #[lang = "from"]
    pub fn from(T) -> Self;
}

Used to do value-to-value conversions while consuming the input value. It is the reciprocal of Into.

One should always prefer implementing From over Into because implementing From automatically provides one with an implementation of Into thanks to the blanket implementation in the standard library.

Only implement Into when targeting a version prior to Rust 1.41 and converting to a type outside the current crate. From was not able to do these types of conversions in earlier versions because of Rust’s orphaning rules. See Into for more details.

Prefer using Into over using From when specifying trait bounds on a generic function. This way, types that directly implement Into can be used as arguments as well.

The From is also very useful when performing error handling. When constructing a function that is capable of failing, the return type will generally be of the form Result<T, E>. The From trait simplifies error handling by allowing a function to return a single error type that encapsulate multiple error types. See the “Examples” section and the book for more details.

Note: This trait must not fail. If the conversion can fail, use TryFrom.

Generic Implementations

• From<T> for U implies Into<U> for T
• From is reflexive, which means that From<T> for T is implemented

Examples

String implements From<&str>:

An explicit conversion from a &str to a String is done as follows:

let string = "hello".to_string();
let other_string = String::from("hello");

assert_eq!(string, other_string);

While performing error handling it is often useful to implement From for your own error type. By converting underlying error types to our own custom error type that encapsulates the underlying error type, we can return a single error type without losing information on the underlying cause. The ‘?’ operator automatically converts the underlying error type to our custom error type by calling Into<CliError>::into which is automatically provided when implementing From. The compiler then infers which implementation of Into should be used.

use std::fs;
use std::io;
use std::num;

enum CliError {
    IoError(io::Error),
    ParseError(num::ParseIntError),
}

impl From<io::Error> for CliError {
    fn from(error: io::Error) -> Self {
        CliError::IoError(error)
    }
}

impl From<num::ParseIntError> for CliError {
    fn from(error: num::ParseIntError) -> Self {
        CliError::ParseError(error)
    }
}

fn open_and_parse_file(file_name: &str) -> Result<i32, CliError> {
    let mut contents = fs::read_to_string(&file_name)?;
    let num: i32 = contents.trim().parse()?;
    Ok(num)
}

Required methods

#[lang = "from"]

pub fn from(T) -> Self

Performs the conversion.

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Implementations on Foreign Types

impl<'_> From<&'_ OsStr> for Box<OsStr, Global>

pub fn from(s: &OsStr) -> Box<OsStr, Global>

impl<'_> From<&'_ CStr> for Box<CStr, Global>

pub fn from(s: &CStr) -> Box<CStr, Global>

impl From<u128> for Ipv6Addr

pub fn from(ip: u128) -> Ipv6Addr

Convert a host byte order u128 into an Ipv6Addr.

Examples

use std::net::Ipv6Addr;

let addr = Ipv6Addr::from(0x102030405060708090A0B0C0D0E0F00D_u128);
assert_eq!(
    Ipv6Addr::new(
        0x1020, 0x3040, 0x5060, 0x7080,
        0x90A0, 0xB0C0, 0xD0E0, 0xF00D,
    ),
    addr);

impl From<CString> for Box<CStr, Global>

pub fn from(s: CString) -> Box<CStr, Global>

Converts a CString into a Box<CStr> without copying or allocating.

impl From<Ipv6Addr> for IpAddr

pub fn from(ipv6: Ipv6Addr) -> IpAddr

Copies this address to a new IpAddr::V6.

Examples

use std::net::{IpAddr, Ipv6Addr};

let addr = Ipv6Addr::new(0, 0, 0, 0, 0, 0xffff, 0xc00a, 0x2ff);

assert_eq!(
    IpAddr::V6(addr),
    IpAddr::from(addr)
);

impl From<Ipv6Addr> for u128

pub fn from(ip: Ipv6Addr) -> u128

Convert an Ipv6Addr into a host byte order u128.

Examples

use std::net::Ipv6Addr;

let addr = Ipv6Addr::new(
    0x1020, 0x3040, 0x5060, 0x7080,
    0x90A0, 0xB0C0, 0xD0E0, 0xF00D,
);
assert_eq!(0x102030405060708090A0B0C0D0E0F00D_u128, u128::from(addr));

impl From<PathBuf> for Box<Path, Global>

pub fn from(p: PathBuf) -> Box<Path, Global>

Converts a PathBuf into a Box<Path>

This conversion currently should not allocate memory, but this behavior is not guaranteed on all platforms or in all future versions.

impl<'a> From<Cow<'a, str>> for Box<dyn Error + 'static, Global>

pub fn from(err: Cow<'a, str>) -> Box<dyn Error + 'static, Global>

Converts a Cow into a box of dyn Error.

Examples

use std::error::Error;
use std::mem;
use std::borrow::Cow;

let a_cow_str_error = Cow::from("a str error");
let a_boxed_error = Box::<dyn Error>::from(a_cow_str_error);
assert!(mem::size_of::<Box<dyn Error>>() == mem::size_of_val(&a_boxed_error))

impl From<[u16; 8]> for IpAddr

pub fn from(segments: [u16; 8]) -> IpAddr

Creates an IpAddr::V6 from an eight element 16-bit array.

Examples

use std::net::{IpAddr, Ipv6Addr};

let addr = IpAddr::from([
    525u16, 524u16, 523u16, 522u16,
    521u16, 520u16, 519u16, 518u16,
]);
assert_eq!(
    IpAddr::V6(Ipv6Addr::new(
        0x20d, 0x20c,
        0x20b, 0x20a,
        0x209, 0x208,
        0x207, 0x206
    )),
    addr
);

impl From<CString> for Vec<u8, Global>

pub fn from(s: CString) -> Vec<u8, Global>

Converts a CString into a Vec<u8>.

The conversion consumes the CString, and removes the terminating NUL byte.

impl<'_> From<&'_ str> for Box<dyn Error + 'static, Global>

pub fn from(err: &str) -> Box<dyn Error + 'static, Global>

Converts a str into a box of dyn Error.

Examples

use std::error::Error;
use std::mem;

let a_str_error = "a str error";
let a_boxed_error = Box::<dyn Error>::from(a_str_error);
assert!(mem::size_of::<Box<dyn Error>>() == mem::size_of_val(&a_boxed_error))

impl From<String> for OsString

pub fn from(s: String) -> OsString

Converts a String into a OsString.

This conversion does not allocate or copy memory.

impl<'a, E> From<E> for Box<dyn Error + 'a + Sync + Send, Global> where
    E: 'a + Error + Send + Sync, 

pub fn from(err: E) -> Box<dyn Error + 'a + Sync + Send, Global>

Converts a type of Error + Send + Sync into a box of dyn Error + Send + Sync.

Examples

use std::error::Error;
use std::fmt;
use std::mem;

#[derive(Debug)]
struct AnError;

impl fmt::Display for AnError {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        write!(f , "An error")
    }
}

impl Error for AnError {}

unsafe impl Send for AnError {}

unsafe impl Sync for AnError {}

let an_error = AnError;
assert!(0 == mem::size_of_val(&an_error));
let a_boxed_error = Box::<dyn Error + Send + Sync>::from(an_error);
assert!(
    mem::size_of::<Box<dyn Error + Send + Sync>>() == mem::size_of_val(&a_boxed_error))

impl From<OsString> for Rc<OsStr>

pub fn from(s: OsString) -> Rc<OsStr>

Converts a OsString into a Rc<OsStr> without copying or allocating.

impl From<Box<OsStr, Global>> for OsString

pub fn from(boxed: Box<OsStr, Global>) -> OsString

Converts a Box<OsStr> into an OsString without copying or allocating.

impl From<SocketAddrV6> for SocketAddr

pub fn from(sock6: SocketAddrV6) -> SocketAddr

Converts a SocketAddrV6 into a SocketAddr::V6.

impl<'_> From<Cow<'_, Path>> for Box<Path, Global>

pub fn from(cow: Cow<'_, Path>) -> Box<Path, Global>

impl From<PathBuf> for Rc<Path>

pub fn from(s: PathBuf) -> Rc<Path>

Converts a PathBuf into an Rc by moving the PathBuf data into a new Rc buffer.

impl From<Ipv4Addr> for IpAddr

pub fn from(ipv4: Ipv4Addr) -> IpAddr

Copies this address to a new IpAddr::V4.

Examples

use std::net::{IpAddr, Ipv4Addr};

let addr = Ipv4Addr::new(127, 0, 0, 1);

assert_eq!(
    IpAddr::V4(addr),
    IpAddr::from(addr)
)

impl From<String> for Box<dyn Error + 'static + Sync + Send, Global>

pub fn from(err: String) -> Box<dyn Error + 'static + Sync + Send, Global>

Converts a String into a box of dyn Error + Send + Sync.

Examples

use std::error::Error;
use std::mem;

let a_string_error = "a string error".to_string();
let a_boxed_error = Box::<dyn Error + Send + Sync>::from(a_string_error);
assert!(
    mem::size_of::<Box<dyn Error + Send + Sync>>() == mem::size_of_val(&a_boxed_error))

impl<'a> From<Cow<'a, CStr>> for CString

pub fn from(s: Cow<'a, CStr>) -> CString

impl<T> From<PoisonError<T>> for TryLockError<T>

pub fn from(err: PoisonError<T>) -> TryLockError<T>

impl<'_> From<&'_ CStr> for CString

pub fn from(s: &CStr) -> CString

impl From<Box<CStr, Global>> for CString

pub fn from(s: Box<CStr, Global>) -> CString

Converts a Box<CStr> into a CString without copying or allocating.

impl From<[u8; 4]> for IpAddr

pub fn from(octets: [u8; 4]) -> IpAddr

Creates an IpAddr::V4 from a four element byte array.

Examples

use std::net::{IpAddr, Ipv4Addr};

let addr = IpAddr::from([13u8, 12u8, 11u8, 10u8]);
assert_eq!(IpAddr::V4(Ipv4Addr::new(13, 12, 11, 10)), addr);

impl<'a, E> From<E> for Box<dyn Error + 'a, Global> where
    E: 'a + Error, 

pub fn from(err: E) -> Box<dyn Error + 'a, Global>

Converts a type of Error into a box of dyn Error.

Examples

use std::error::Error;
use std::fmt;
use std::mem;

#[derive(Debug)]
struct AnError;

impl fmt::Display for AnError {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        write!(f , "An error")
    }
}

impl Error for AnError {}

let an_error = AnError;
assert!(0 == mem::size_of_val(&an_error));
let a_boxed_error = Box::<dyn Error>::from(an_error);
assert!(mem::size_of::<Box<dyn Error>>() == mem::size_of_val(&a_boxed_error))

impl<T> From<T> for SyncOnceCell<T>

pub fn from(value: T) -> SyncOnceCell<T>

impl<'a, '_> From<&'_ str> for Box<dyn Error + 'a + Sync + Send, Global>

pub fn from(err: &str) -> Box<dyn Error + 'a + Sync + Send, Global>

Converts a str into a box of dyn Error + Send + Sync.

Examples

use std::error::Error;
use std::mem;

let a_str_error = "a str error";
let a_boxed_error = Box::<dyn Error + Send + Sync>::from(a_str_error);
assert!(
    mem::size_of::<Box<dyn Error + Send + Sync>>() == mem::size_of_val(&a_boxed_error))

impl From<OsString> for Box<OsStr, Global>

pub fn from(s: OsString) -> Box<OsStr, Global>

Converts a OsString into a Box<OsStr> without copying or allocating.

impl<'_> From<&'_ OsStr> for Rc<OsStr>

pub fn from(s: &OsStr) -> Rc<OsStr>

impl<'_> From<&'_ Path> for Rc<Path>

pub fn from(s: &Path) -> Rc<Path>

Converts a Path into an Rc by copying the Path data into a new Rc buffer.

impl<'_> From<Cow<'_, CStr>> for Box<CStr, Global>

pub fn from(cow: Cow<'_, CStr>) -> Box<CStr, Global>

impl From<PathBuf> for OsString

pub fn from(path_buf: PathBuf) -> OsString

Converts a PathBuf into an OsString

This conversion does not allocate or copy memory.

impl From<[u8; 16]> for IpAddr

pub fn from(octets: [u8; 16]) -> IpAddr

Creates an IpAddr::V6 from a sixteen element byte array.

Examples

use std::net::{IpAddr, Ipv6Addr};

let addr = IpAddr::from([
    25u8, 24u8, 23u8, 22u8, 21u8, 20u8, 19u8, 18u8,
    17u8, 16u8, 15u8, 14u8, 13u8, 12u8, 11u8, 10u8,
]);
assert_eq!(
    IpAddr::V6(Ipv6Addr::new(
        0x1918, 0x1716,
        0x1514, 0x1312,
        0x1110, 0x0f0e,
        0x0d0c, 0x0b0a
    )),
    addr
);

impl<T> From<T> for RwLock<T>

pub fn from(t: T) -> RwLock<T>

Creates a new instance of an RwLock<T> which is unlocked. This is equivalent to RwLock::new.

impl<'a> From<Cow<'a, OsStr>> for OsString

pub fn from(s: Cow<'a, OsStr>) -> OsString

impl<'a, 'b> From<Cow<'b, str>> for Box<dyn Error + 'a + Sync + Send, Global>

pub fn from(err: Cow<'b, str>) -> Box<dyn Error + 'a + Sync + Send, Global>

Converts a Cow into a box of dyn Error + Send + Sync.

Examples

use std::error::Error;
use std::mem;
use std::borrow::Cow;

let a_cow_str_error = Cow::from("a str error");
let a_boxed_error = Box::<dyn Error + Send + Sync>::from(a_cow_str_error);
assert!(
    mem::size_of::<Box<dyn Error + Send + Sync>>() == mem::size_of_val(&a_boxed_error))

impl<'_> From<&'_ CStr> for Rc<CStr>

pub fn from(s: &CStr) -> Rc<CStr>

impl From<u32> for Ipv4Addr

pub fn from(ip: u32) -> Ipv4Addr

Converts a host byte order u32 into an Ipv4Addr.

Examples

use std::net::Ipv4Addr;

let addr = Ipv4Addr::from(0xcafebabe);
assert_eq!(Ipv4Addr::new(0xca, 0xfe, 0xba, 0xbe), addr);

impl From<Vec<NonZeroU8, Global>> for CString

pub fn from(v: Vec<NonZeroU8, Global>) -> CString

Converts a Vec<NonZeroU8> into a CString without copying nor checking for inner null bytes.

impl<T> From<T> for Mutex<T>

pub fn from(t: T) -> Mutex<T>

Creates a new mutex in an unlocked state ready for use. This is equivalent to Mutex::new.

impl<'_> From<&'_ Path> for Box<Path, Global>

pub fn from(path: &Path) -> Box<Path, Global>

impl From<SocketAddrV4> for SocketAddr

pub fn from(sock4: SocketAddrV4) -> SocketAddr

Converts a SocketAddrV4 into a SocketAddr::V4.

impl<I> From<(I, u16)> for SocketAddr where
    I: Into<IpAddr>, 

pub fn from(pieces: (I, u16)) -> SocketAddr

Converts a tuple struct (Into<IpAddr>, u16) into a SocketAddr.

This conversion creates a SocketAddr::V4 for a IpAddr::V4 and creates a SocketAddr::V6 for a IpAddr::V6.

u16 is treated as port of the newly created SocketAddr.

impl<'_, T> From<&'_ T> for OsString where
    T: AsRef<OsStr> + ?Sized, 

pub fn from(s: &T) -> OsString

impl From<CString> for Rc<CStr>

pub fn from(s: CString) -> Rc<CStr>

Converts a CString into a Rc<CStr> without copying or allocating.

impl<'_> From<Cow<'_, OsStr>> for Box<OsStr, Global>

pub fn from(cow: Cow<'_, OsStr>) -> Box<OsStr, Global>

impl From<[u8; 4]> for Ipv4Addr

pub fn from(octets: [u8; 4]) -> Ipv4Addr

Creates an Ipv4Addr from a four element byte array.

Examples

use std::net::Ipv4Addr;

let addr = Ipv4Addr::from([13u8, 12u8, 11u8, 10u8]);
assert_eq!(Ipv4Addr::new(13, 12, 11, 10), addr);

impl From<String> for Box<dyn Error + 'static, Global>

pub fn from(str_err: String) -> Box<dyn Error + 'static, Global>

Converts a String into a box of dyn Error.

Examples

use std::error::Error;
use std::mem;

let a_string_error = "a string error".to_string();
let a_boxed_error = Box::<dyn Error>::from(a_string_error);
assert!(mem::size_of::<Box<dyn Error>>() == mem::size_of_val(&a_boxed_error))

impl From<[u8; 16]> for Ipv6Addr

pub fn from(octets: [u8; 16]) -> Ipv6Addr

Creates an Ipv6Addr from a sixteen element byte array.

Examples

use std::net::Ipv6Addr;

let addr = Ipv6Addr::from([
    25u8, 24u8, 23u8, 22u8, 21u8, 20u8, 19u8, 18u8,
    17u8, 16u8, 15u8, 14u8, 13u8, 12u8, 11u8, 10u8,
]);
assert_eq!(
    Ipv6Addr::new(
        0x1918, 0x1716,
        0x1514, 0x1312,
        0x1110, 0x0f0e,
        0x0d0c, 0x0b0a
    ),
    addr
);

impl From<[u16; 8]> for Ipv6Addr

pub fn from(segments: [u16; 8]) -> Ipv6Addr

Creates an Ipv6Addr from an eight element 16-bit array.

Examples

use std::net::Ipv6Addr;

let addr = Ipv6Addr::from([
    525u16, 524u16, 523u16, 522u16,
    521u16, 520u16, 519u16, 518u16,
]);
assert_eq!(
    Ipv6Addr::new(
        0x20d, 0x20c,
        0x20b, 0x20a,
        0x209, 0x208,
        0x207, 0x206
    ),
    addr
);

impl From<Ipv4Addr> for u32

pub fn from(ip: Ipv4Addr) -> u32

Converts an Ipv4Addr into a host byte order u32.

Examples

use std::net::Ipv4Addr;

let addr = Ipv4Addr::new(0xca, 0xfe, 0xba, 0xbe);
assert_eq!(0xcafebabe, u32::from(addr));

impl From<NonZeroU32> for u32

pub fn from(nonzero: NonZeroU32) -> u32

Converts a NonZeroU32 into an u32

impl From<i16> for f64

Converts i16 to f64 losslessly.

pub fn from(small: i16) -> f64

impl From<bool> for i8

Converts a bool to a i8. The resulting value is 0 for false and 1 for true values.

Examples

assert_eq!(i8::from(true), 1);
assert_eq!(i8::from(false), 0);

pub fn from(small: bool) -> i8

impl From<NonZeroU16> for u16

pub fn from(nonzero: NonZeroU16) -> u16

Converts a NonZeroU16 into an u16

impl From<f32> for f64

Converts f32 to f64 losslessly.

pub fn from(small: f32) -> f64

impl From<u16> for u64

Converts u16 to u64 losslessly.

pub fn from(small: u16) -> u64

impl From<NonZeroU128> for u128

pub fn from(nonzero: NonZeroU128) -> u128

Converts a NonZeroU128 into an u128

impl From<i32> for f64

Converts i32 to f64 losslessly.

pub fn from(small: i32) -> f64

impl From<u64> for i128

Converts u64 to i128 losslessly.

pub fn from(small: u64) -> i128

impl From<u8> for u16

Converts u8 to u16 losslessly.

pub fn from(small: u8) -> u16

impl From<u16> for u128

Converts u16 to u128 losslessly.

pub fn from(small: u16) -> u128

impl From<i8> for f64

Converts i8 to f64 losslessly.

pub fn from(small: i8) -> f64

impl From<u8> for i64

Converts u8 to i64 losslessly.

pub fn from(small: u8) -> i64

impl From<u32> for u128

Converts u32 to u128 losslessly.

pub fn from(small: u32) -> u128

impl From<bool> for u128

Converts a bool to a u128. The resulting value is 0 for false and 1 for true values.

Examples

assert_eq!(u128::from(true), 1);
assert_eq!(u128::from(false), 0);

pub fn from(small: bool) -> u128

impl From<u8> for i32

Converts u8 to i32 losslessly.

pub fn from(small: u8) -> i32

impl From<u64> for u128

Converts u64 to u128 losslessly.

pub fn from(small: u64) -> u128

impl From<i32> for i128

Converts i32 to i128 losslessly.

pub fn from(small: i32) -> i128

impl From<u32> for i128

Converts u32 to i128 losslessly.

pub fn from(small: u32) -> i128

impl From<bool> for u32

Converts a bool to a u32. The resulting value is 0 for false and 1 for true values.

Examples

assert_eq!(u32::from(true), 1);
assert_eq!(u32::from(false), 0);

pub fn from(small: bool) -> u32

impl From<bool> for u8

Converts a bool to a u8. The resulting value is 0 for false and 1 for true values.

Examples

assert_eq!(u8::from(true), 1);
assert_eq!(u8::from(false), 0);

pub fn from(small: bool) -> u8

impl From<i16> for i64

Converts i16 to i64 losslessly.

pub fn from(small: i16) -> i64

impl From<u16> for u32

Converts u16 to u32 losslessly.

pub fn from(small: u16) -> u32

impl From<bool> for i64

Converts a bool to a i64. The resulting value is 0 for false and 1 for true values.

Examples

assert_eq!(i64::from(true), 1);
assert_eq!(i64::from(false), 0);

pub fn from(small: bool) -> i64

impl From<i16> for i32

Converts i16 to i32 losslessly.

pub fn from(small: i16) -> i32

impl From<i32> for i64

Converts i32 to i64 losslessly.

pub fn from(small: i32) -> i64

impl From<u8> for u64

Converts u8 to u64 losslessly.

pub fn from(small: u8) -> u64

impl From<NonZeroU8> for u8

pub fn from(nonzero: NonZeroU8) -> u8

Converts a NonZeroU8 into an u8

impl From<bool> for i128

Converts a bool to a i128. The resulting value is 0 for false and 1 for true values.

Examples

assert_eq!(i128::from(true), 1);
assert_eq!(i128::from(false), 0);

pub fn from(small: bool) -> i128

impl From<bool> for isize

Converts a bool to a isize. The resulting value is 0 for false and 1 for true values.

Examples

assert_eq!(isize::from(true), 1);
assert_eq!(isize::from(false), 0);

pub fn from(small: bool) -> isize

impl From<NonZeroI64> for i64

pub fn from(nonzero: NonZeroI64) -> i64

Converts a NonZeroI64 into an i64

impl From<char> for u64

pub fn from(c: char) -> u64

Converts a char into a u64.

Examples

use std::mem;

let c = '👤';
let u = u64::from(c);
assert!(8 == mem::size_of_val(&u))

impl From<u16> for usize

Converts u16 to usize losslessly.

pub fn from(small: u16) -> usize

impl From<NonZeroI8> for i8

pub fn from(nonzero: NonZeroI8) -> i8

Converts a NonZeroI8 into an i8

impl From<u8> for i16

Converts u8 to i16 losslessly.

pub fn from(small: u8) -> i16

impl From<i8> for i32

Converts i8 to i32 losslessly.

pub fn from(small: i8) -> i32

impl From<char> for u128

pub fn from(c: char) -> u128

Converts a char into a u128.

Examples

use std::mem;

let c = '⚙';
let u = u128::from(c);
assert!(16 == mem::size_of_val(&u))

impl From<u32> for f64

Converts u32 to f64 losslessly.

pub fn from(small: u32) -> f64

impl From<NonZeroI16> for i16

pub fn from(nonzero: NonZeroI16) -> i16

Converts a NonZeroI16 into an i16

impl From<u32> for i64

Converts u32 to i64 losslessly.

pub fn from(small: u32) -> i64

impl From<char> for u32

pub fn from(c: char) -> u32

Converts a char into a u32.

Examples

use std::mem;

let c = 'c';
let u = u32::from(c);
assert!(4 == mem::size_of_val(&u))

impl From<i8> for i16

Converts i8 to i16 losslessly.

pub fn from(small: i8) -> i16

impl From<i8> for isize

Converts i8 to isize losslessly.

pub fn from(small: i8) -> isize

impl From<i16> for i128

Converts i16 to i128 losslessly.

pub fn from(small: i16) -> i128

impl From<NonZeroUsize> for usize

pub fn from(nonzero: NonZeroUsize) -> usize

Converts a NonZeroUsize into an usize

impl From<u8> for i128

Converts u8 to i128 losslessly.

pub fn from(small: u8) -> i128

impl From<u16> for f32

Converts u16 to f32 losslessly.

pub fn from(small: u16) -> f32

impl From<NonZeroI32> for i32

pub fn from(nonzero: NonZeroI32) -> i32

Converts a NonZeroI32 into an i32

impl From<bool> for usize

Converts a bool to a usize. The resulting value is 0 for false and 1 for true values.

Examples

assert_eq!(usize::from(true), 1);
assert_eq!(usize::from(false), 0);

pub fn from(small: bool) -> usize

impl From<u16> for f64

Converts u16 to f64 losslessly.

pub fn from(small: u16) -> f64

impl From<u8> for f32

Converts u8 to f32 losslessly.

pub fn from(small: u8) -> f32

impl From<i16> for isize

Converts i16 to isize losslessly.

pub fn from(small: i16) -> isize

impl From<u8> for usize

Converts u8 to usize losslessly.

pub fn from(small: u8) -> usize

impl From<NonZeroIsize> for isize

pub fn from(nonzero: NonZeroIsize) -> isize

Converts a NonZeroIsize into an isize

impl From<u16> for i64

Converts u16 to i64 losslessly.

pub fn from(small: u16) -> i64

impl From<NonZeroU64> for u64

pub fn from(nonzero: NonZeroU64) -> u64

Converts a NonZeroU64 into an u64

impl From<NonZeroI128> for i128

pub fn from(nonzero: NonZeroI128) -> i128

Converts a NonZeroI128 into an i128

impl From<u8> for f64

Converts u8 to f64 losslessly.

pub fn from(small: u8) -> f64

impl From<bool> for i16

Converts a bool to a i16. The resulting value is 0 for false and 1 for true values.

Examples

assert_eq!(i16::from(true), 1);
assert_eq!(i16::from(false), 0);

pub fn from(small: bool) -> i16

impl From<u8> for char

Maps a byte in 0x00..=0xFF to a char whose code point has the same value, in U+0000..=U+00FF.

Unicode is designed such that this effectively decodes bytes with the character encoding that IANA calls ISO-8859-1. This encoding is compatible with ASCII.

Note that this is different from ISO/IEC 8859-1 a.k.a. ISO 8859-1 (with one less hyphen), which leaves some “blanks”, byte values that are not assigned to any character. ISO-8859-1 (the IANA one) assigns them to the C0 and C1 control codes.

Note that this is also different from Windows-1252 a.k.a. code page 1252, which is a superset ISO/IEC 8859-1 that assigns some (not all!) blanks to punctuation and various Latin characters.

To confuse things further, on the Web ascii, iso-8859-1, and windows-1252 are all aliases for a superset of Windows-1252 that fills the remaining blanks with corresponding C0 and C1 control codes.

pub fn from(i: u8) -> char

Converts a u8 into a char.

Examples

use std::mem;

let u = 32 as u8;
let c = char::from(u);
assert!(4 == mem::size_of_val(&c))

impl From<u8> for u32

Converts u8 to u32 losslessly.

pub fn from(small: u8) -> u32

impl From<i8> for i128

Converts i8 to i128 losslessly.

pub fn from(small: i8) -> i128

impl From<i16> for f32

Converts i16 to f32 losslessly.

pub fn from(small: i16) -> f32

impl From<i8> for i64

Converts i8 to i64 losslessly.

pub fn from(small: i8) -> i64

impl From<u16> for i32

Converts u16 to i32 losslessly.

pub fn from(small: u16) -> i32

impl From<i64> for i128

Converts i64 to i128 losslessly.

pub fn from(small: i64) -> i128

impl From<u32> for u64

Converts u32 to u64 losslessly.

pub fn from(small: u32) -> u64

impl From<i8> for f32

Converts i8 to f32 losslessly.

pub fn from(small: i8) -> f32

impl From<u8> for isize

Converts u8 to isize losslessly.

pub fn from(small: u8) -> isize

impl From<bool> for u64

Converts a bool to a u64. The resulting value is 0 for false and 1 for true values.

Examples

assert_eq!(u64::from(true), 1);
assert_eq!(u64::from(false), 0);

pub fn from(small: bool) -> u64

impl From<bool> for i32

Converts a bool to a i32. The resulting value is 0 for false and 1 for true values.

Examples

assert_eq!(i32::from(true), 1);
assert_eq!(i32::from(false), 0);

pub fn from(small: bool) -> i32

impl From<bool> for u16

Converts a bool to a u16. The resulting value is 0 for false and 1 for true values.

Examples

assert_eq!(u16::from(true), 1);
assert_eq!(u16::from(false), 0);

pub fn from(small: bool) -> u16

impl From<u8> for u128

Converts u8 to u128 losslessly.

pub fn from(small: u8) -> u128

impl From<u16> for i128

Converts u16 to i128 losslessly.

pub fn from(small: u16) -> i128

impl From<String> for Vec<u8, Global>

pub fn from(string: String) -> Vec<u8, Global>

Converts the given String to a vector Vec that holds values of type u8.

Examples

Basic usage:

let s1 = String::from("hello world");
let v1 = Vec::from(s1);

for b in v1 {
    println!("{}", b);
}

impl<T, A> From<Vec<T, A>> for Box<[T], A> where
    A: Allocator, 

pub fn from(v: Vec<T, A>) -> Box<[T], A>

Convert a vector into a boxed slice.

If v has excess capacity, its items will be moved into a newly-allocated buffer with exactly the right capacity.

Examples

assert_eq!(Box::from(vec![1, 2, 3]), vec![1, 2, 3].into_boxed_slice());

impl<T> From<T> for Rc<T>

pub fn from(t: T) -> Rc<T>

impl<T> From<T> for Box<T, Global>

pub fn from(t: T) -> Box<T, Global>

Converts a generic type T into a Box<T>

The conversion allocates on the heap and moves t from the stack into it.

Examples

let x = 5;
let boxed = Box::new(5);

assert_eq!(Box::from(x), boxed);

impl<T> From<BinaryHeap<T>> for Vec<T, Global>

pub fn from(heap: BinaryHeap<T>) -> Vec<T, Global>

Converts a BinaryHeap<T> into a Vec<T>.

This conversion requires no data movement or allocation, and has constant time complexity.

impl<T> From<Vec<T, Global>> for BinaryHeap<T> where
    T: Ord, 

pub fn from(vec: Vec<T, Global>) -> BinaryHeap<T>

Converts a Vec<T> into a BinaryHeap<T>.

This conversion happens in-place, and has O(n) time complexity.

impl<T> From<Box<T, Global>> for Rc<T> where
    T: ?Sized, 

pub fn from(v: Box<T, Global>) -> Rc<T>

Move a boxed object to a new, reference counted, allocation.

Example

let original: Box<i32> = Box::new(1);
let shared: Rc<i32> = Rc::from(original);
assert_eq!(1, *shared);

impl<T, const N: usize> From<[T; N]> for Vec<T, Global>

pub fn from(s: [T; N]) -> Vec<T, Global>

impl<'_> From<Cow<'_, str>> for Box<str, Global>

pub fn from(cow: Cow<'_, str>) -> Box<str, Global>

impl From<LayoutError> for TryReserveError

pub fn from(LayoutError) -> TryReserveError

impl<T, const N: usize> From<[T; N]> for Box<[T], Global>

pub fn from(array: [T; N]) -> Box<[T], Global>

Converts a [T; N] into a Box<[T]>

This conversion moves the array to newly heap-allocated memory.

Examples

let boxed: Box<[u8]> = Box::from([4, 2]);
println!("{:?}", boxed);

impl<'_> From<&'_ str> for Rc<str>

pub fn from(v: &str) -> Rc<str>

Allocate a reference-counted string slice and copy v into it.

Example

let shared: Rc<str> = Rc::from("statue");
assert_eq!("statue", &shared[..]);

impl<'a, T> From<Cow<'a, [T]>> for Vec<T, Global> where
    [T]: ToOwned,
    <[T] as ToOwned>::Owned == Vec<T, Global>, 

pub fn from(s: Cow<'a, [T]>) -> Vec<T, Global>

Convert a clone-on-write slice into a vector.

If s already owns a Vec<T>, it will be returned directly. If s is borrowing a slice, a new Vec<T> will be allocated and filled by cloning s’s items into it.

Examples

let o: Cow<[i32]> = Cow::Owned(vec![1, 2, 3]);
let b: Cow<[i32]> = Cow::Borrowed(&[1, 2, 3]);
assert_eq!(Vec::from(o), Vec::from(b));

impl<'_, T> From<&'_ [T]> for Box<[T], Global> where
    T: Copy, 

pub fn from(slice: &[T]) -> Box<[T], Global>

Converts a &[T] into a Box<[T]>

This conversion allocates on the heap and performs a copy of slice.

Examples

// create a &[u8] which will be used to create a Box<[u8]>
let slice: &[u8] = &[104, 101, 108, 108, 111];
let boxed_slice: Box<[u8]> = Box::from(slice);

println!("{:?}", boxed_slice);

impl From<String> for Box<str, Global>

pub fn from(s: String) -> Box<str, Global>

Converts the given String to a boxed str slice that is owned.

Examples

Basic usage:

let s1: String = String::from("hello world");
let s2: Box<str> = Box::from(s1);
let s3: String = String::from(s2);

assert_eq!("hello world", s3)

impl<'_> From<&'_ mut str> for String

pub fn from(s: &mut str) -> String

Converts a &mut str into a String.

The result is allocated on the heap.

impl<'_> From<&'_ str> for String

pub fn from(s: &str) -> String

impl<T> From<VecDeque<T>> for Vec<T, Global>

pub fn from(other: VecDeque<T>) -> Vec<T, Global>

Turn a VecDeque<T> into a Vec<T>.

This never needs to re-allocate, but does need to do O(n) data movement if the circular buffer doesn’t happen to be at the beginning of the allocation.

Examples

use std::collections::VecDeque;

// This one is *O*(1).
let deque: VecDeque<_> = (1..5).collect();
let ptr = deque.as_slices().0.as_ptr();
let vec = Vec::from(deque);
assert_eq!(vec, [1, 2, 3, 4]);
assert_eq!(vec.as_ptr(), ptr);

// This one needs data rearranging.
let mut deque: VecDeque<_> = (1..5).collect();
deque.push_front(9);
deque.push_front(8);
let ptr = deque.as_slices().1.as_ptr();
let vec = Vec::from(deque);
assert_eq!(vec, [8, 9, 1, 2, 3, 4]);
assert_eq!(vec.as_ptr(), ptr);

impl<'_, T> From<&'_ [T]> for Rc<[T]> where
    T: Clone, 

pub fn from(v: &[T]) -> Rc<[T]>

Allocate a reference-counted slice and fill it by cloning v’s items.

Example

let original: &[i32] = &[1, 2, 3];
let shared: Rc<[i32]> = Rc::from(original);
assert_eq!(&[1, 2, 3], &shared[..]);

impl<T, A> From<Box<[T], A>> for Vec<T, A> where
    A: Allocator, 

pub fn from(s: Box<[T], A>) -> Vec<T, A>

Convert a boxed slice into a vector by transferring ownership of the existing heap allocation.

Examples

let b: Box<[i32]> = vec![1, 2, 3].into_boxed_slice();
assert_eq!(Vec::from(b), vec![1, 2, 3]);

impl<'_, T> From<&'_ [T]> for Vec<T, Global> where
    T: Clone, 

pub fn from(s: &[T]) -> Vec<T, Global>

Allocate a Vec<T> and fill it by cloning s’s items.

Examples

assert_eq!(Vec::from(&[1, 2, 3][..]), vec![1, 2, 3]);

impl<'a, B> From<Cow<'a, B>> for Rc<B> where
    B: ToOwned + ?Sized,
    Rc<B>: From<&'a B>,
    Rc<B>: From<<B as ToOwned>::Owned>, 

pub fn from(cow: Cow<'a, B>) -> Rc<B>

impl<'a> From<Cow<'a, str>> for String

pub fn from(s: Cow<'a, str>) -> String

impl From<Box<str, Global>> for String

pub fn from(s: Box<str, Global>) -> String

Converts the given boxed str slice to a String. It is notable that the str slice is owned.

Examples

Basic usage:

let s1: String = String::from("hello world");
let s2: Box<str> = s1.into_boxed_str();
let s3: String = String::from(s2);

assert_eq!("hello world", s3)

impl<T> From<Vec<T, Global>> for Rc<[T]>

pub fn from(v: Vec<T, Global>) -> Rc<[T]>

Allocate a reference-counted slice and move v’s items into it.

Example

let original: Box<Vec<i32>> = Box::new(vec![1, 2, 3]);
let shared: Rc<Vec<i32>> = Rc::from(original);
assert_eq!(vec![1, 2, 3], *shared);

impl<'_> From<&'_ str> for Vec<u8, Global>

pub fn from(s: &str) -> Vec<u8, Global>

Allocate a Vec<u8> and fill it with a UTF-8 string.

Examples

assert_eq!(Vec::from("123"), vec![b'1', b'2', b'3']);

impl<'_, T> From<&'_ mut [T]> for Vec<T, Global> where
    T: Clone, 

pub fn from(s: &mut [T]) -> Vec<T, Global>

Allocate a Vec<T> and fill it by cloning s’s items.

Examples

assert_eq!(Vec::from(&mut [1, 2, 3][..]), vec![1, 2, 3]);

impl From<String> for Rc<str>

pub fn from(v: String) -> Rc<str>

Allocate a reference-counted string slice and copy v into it.

Example

let original: String = "statue".to_owned();
let shared: Rc<str> = Rc::from(original);
assert_eq!("statue", &shared[..]);

impl<'_> From<&'_ String> for String

pub fn from(s: &String) -> String

impl<'_, T> From<Cow<'_, [T]>> for Box<[T], Global> where
    T: Copy, 

pub fn from(cow: Cow<'_, [T]>) -> Box<[T], Global>

impl<A> From<Box<str, A>> for Box<[u8], A> where
    A: Allocator, 

pub fn from(s: Box<str, A>) -> Box<[u8], A>

Converts a Box<str> into a Box<[u8]>

This conversion does not allocate on the heap and happens in place.

Examples

// create a Box<str> which will be used to create a Box<[u8]>
let boxed: Box<str> = Box::from("hello");
let boxed_str: Box<[u8]> = Box::from(boxed);

// create a &[u8] which will be used to create a Box<[u8]>
let slice: &[u8] = &[104, 101, 108, 108, 111];
let boxed_slice = Box::from(slice);

assert_eq!(boxed_slice, boxed_str);

impl From<char> for String

pub fn from(c: char) -> String

impl<'_> From<&'_ str> for Box<str, Global>

pub fn from(s: &str) -> Box<str, Global>

Converts a &str into a Box<str>

This conversion allocates on the heap and performs a copy of s.

Examples

let boxed: Box<str> = Box::from("hello");
println!("{}", boxed);

impl From<DescId> for usize

pub fn from(v: DescId) -> usize

impl From<FaceId> for usize

pub fn from(v: FaceId) -> usize

impl From<GoodItemName> for String

pub fn from(i: GoodItemName) -> String

impl From<FaceId> for u8

pub fn from(v: FaceId) -> u8

impl From<User> for u8

pub fn from(user: User) -> u8

impl From<CompassAngle> for u8

pub fn from(a: CompassAngle) -> u8

impl From<OccId> for String

pub fn from(p: OccId) -> String

impl From<InHand> for usize

pub fn from(v: InHand) -> usize

impl<T> From<OldNew<T>> for [T; 2]

pub fn from(original: OldNew<T>) -> [T; 2]

impl From<VisiblePieceId> for String

pub fn from(p: VisiblePieceId) -> String

impl From<Notch> for u32

pub fn from(n: Notch) -> u32

impl From<SvgId> for usize

pub fn from(v: SvgId) -> usize

impl From<Notch> for usize

pub fn from(v: Notch) -> usize

impl From<PlayerId> for String

pub fn from(p: PlayerId) -> String

impl From<ClientId> for String

pub fn from(p: ClientId) -> String

impl<'a, T, U> From<&'a T> for SerializeAsWrap<'a, T, U> where
    T: ?Sized,
    U: SerializeAs<T> + ?Sized, 

pub fn from(value: &'a T) -> SerializeAsWrap<'a, T, U>

impl From<Error> for Box<dyn Error + 'static + Sync + Send, Global>

pub fn from(error: Error) -> Box<dyn Error + 'static + Sync + Send, Global>

impl From<Error> for Box<dyn Error + 'static + Send, Global>

pub fn from(error: Error) -> Box<dyn Error + 'static + Send, Global>

impl From<Error> for Box<dyn Error + 'static, Global>

pub fn from(error: Error) -> Box<dyn Error + 'static, Global>

impl<'t> From<Match<'t>> for &'t str

pub fn from(m: Match<'t>) -> &'t str

impl From<Error> for Error

pub fn from(err: Error) -> Error

impl From<Error> for Error

pub fn from(err: Error) -> Error

impl From<SystemTime> for Timestamp

pub fn from(dur: SystemTime) -> Timestamp

impl From<Duration> for Duration

pub fn from(dur: Duration) -> Duration

impl From<Error> for Box<dyn Error + 'static + Sync + Send, Global>

pub fn from(error: Error) -> Box<dyn Error + 'static + Sync + Send, Global>

impl From<Error> for Box<dyn Error + 'static, Global>

pub fn from(error: Error) -> Box<dyn Error + 'static, Global>

impl From<Vec<BacktraceFrame, Global>> for Backtrace

pub fn from(frames: Vec<BacktraceFrame, Global>) -> Backtrace

impl<T> From<DebugTypesOffset<T>> for UnitSectionOffset<T>

pub fn from(offset: DebugTypesOffset<T>) -> UnitSectionOffset<T>

impl<R> From<R> for DebugLoc<R>

pub fn from(section: R) -> DebugLoc<R>

impl<R> From<R> for EhFrameHdr<R> where
    R: Reader, 

pub fn from(section: R) -> EhFrameHdr<R>

impl<R> From<R> for DebugLineStr<R>

pub fn from(section: R) -> DebugLineStr<R>

impl<R> From<R> for DebugInfo<R>

pub fn from(debug_info_section: R) -> DebugInfo<R>

impl<R> From<R> for DebugTypes<R>

pub fn from(debug_types_section: R) -> DebugTypes<R>

impl<R> From<R> for EhFrame<R> where
    R: Reader, 

pub fn from(section: R) -> EhFrame<R>

impl<R> From<R> for DebugLine<R>

pub fn from(debug_line_section: R) -> DebugLine<R>

impl<R> From<R> for DebugFrame<R> where
    R: Reader, 

pub fn from(section: R) -> DebugFrame<R>

impl<R> From<R> for DebugPubNames<R> where
    R: Reader, 

pub fn from(debug_pubnames_section: R) -> DebugPubNames<R>

impl<T> From<DebugInfoOffset<T>> for UnitSectionOffset<T>

pub fn from(offset: DebugInfoOffset<T>) -> UnitSectionOffset<T>

impl<T> From<T> for EhFrameOffset<T>

pub fn from(o: T) -> EhFrameOffset<T>

impl<R> From<R> for DebugRngLists<R>

pub fn from(section: R) -> DebugRngLists<R>

impl<R> From<R> for DebugStr<R>

pub fn from(debug_str_section: R) -> DebugStr<R>

impl<R> From<R> for DebugLocLists<R>

pub fn from(section: R) -> DebugLocLists<R>

impl<R> From<R> for DebugAbbrev<R>

pub fn from(debug_abbrev_section: R) -> DebugAbbrev<R>

impl<R> From<R> for DebugRanges<R>

pub fn from(section: R) -> DebugRanges<R>

impl<R> From<R> for DebugPubTypes<R> where
    R: Reader, 

pub fn from(debug_pubtypes_section: R) -> DebugPubTypes<R>

impl<R> From<R> for DebugAddr<R>

pub fn from(section: R) -> DebugAddr<R>

impl<R> From<R> for DebugAranges<R> where
    R: Reader, 

pub fn from(debug_aranges_section: R) -> DebugAranges<R>

impl<T> From<T> for DebugFrameOffset<T>

pub fn from(o: T) -> DebugFrameOffset<T>

impl<R> From<R> for DebugStrOffsets<R>

pub fn from(section: R) -> DebugStrOffsets<R>

impl<E> From<Rel32<E>> for Rela32<E> where
    E: Endian, 

pub fn from(rel: Rel32<E>) -> Rela32<E>

impl<E> From<Rel64<E>> for Rela64<E> where
    E: Endian, 

pub fn from(rel: Rel64<E>) -> Rela64<E>

impl From<MZFlush> for TDEFLFlush

pub fn from(flush: MZFlush) -> TDEFLFlush

impl From<Error> for Error

pub fn from(err: Error) -> Error

impl From<SystemTime> for FileTime

pub fn from(time: SystemTime) -> FileTime

impl From<usize> for Token

pub fn from(val: usize) -> Token

impl From<Token> for usize

pub fn from(val: Token) -> usize

impl From<Ready> for UnixReady

pub fn from(src: Ready) -> UnixReady

impl From<ReadinessState> for usize

pub fn from(src: ReadinessState) -> usize

impl From<UnixReady> for Ready

pub fn from(src: UnixReady) -> Ready

impl<T> From<SendError<T>> for SendError<T>

pub fn from(src: SendError<T>) -> SendError<T>

impl<T> From<TrySendError<T>> for TrySendError<T>

pub fn from(src: TrySendError<T>) -> TrySendError<T>

impl<T> From<Error> for TrySendError<T>

pub fn from(src: Error) -> TrySendError<T>

impl<T> From<Error> for SendError<T>

pub fn from(src: Error) -> SendError<T>

impl<T> From<SendError<T>> for TrySendError<T>

pub fn from(src: SendError<T>) -> TrySendError<T>

impl From<Span> for (usize, usize)

pub fn from(Span) -> (usize, usize)

impl<I, T> From<IndexVec<I, T>> for Box<IndexSlice<I, [T]>, Global> where
    I: Idx, 

pub fn from(src: IndexVec<I, T>) -> Box<IndexSlice<I, [T]>, Global>

impl<I, T> From<Box<[T], Global>> for Box<IndexSlice<I, [T]>, Global> where
    I: Idx, 

pub fn from(b: Box<[T], Global>) -> Box<IndexSlice<I, [T]>, Global>

impl From<Uid> for u32

pub fn from(uid: Uid) -> u32

impl From<Gid> for u32

pub fn from(gid: Gid) -> u32

impl From<Pid> for i32

pub fn from(pid: Pid) -> i32

impl From<NotNan<f32>> for f32

pub fn from(value: NotNan<f32>) -> f32

impl From<NotNan<f64>> for f64

pub fn from(value: NotNan<f64>) -> f64

impl<A> From<A> for SmallVec<A> where
    A: Array, 

pub fn from(array: A) -> SmallVec<A>

impl<'a, A> From<&'a [<A as Array>::Item]> for SmallVec<A> where
    A: Array,
    <A as Array>::Item: Clone, 

pub fn from(slice: &'a [<A as Array>::Item]) -> SmallVec<A>

impl From<LayoutError> for CollectionAllocErr

pub fn from(LayoutError) -> CollectionAllocErr

impl<A> From<Vec<<A as Array>::Item, Global>> for SmallVec<A> where
    A: Array, 

pub fn from(vec: Vec<<A as Array>::Item, Global>) -> SmallVec<A>

impl From<ValueReadError> for NumValueReadError

pub fn from(err: ValueReadError) -> NumValueReadError

impl From<MarkerReadError> for ValueReadError

pub fn from(err: MarkerReadError) -> ValueReadError

impl From<MarkerReadError> for NumValueReadError

pub fn from(err: MarkerReadError) -> NumValueReadError

impl From<DataWriteError> for ValueWriteError

pub fn from(err: DataWriteError) -> ValueWriteError

impl From<u8> for Marker

pub fn from(val: u8) -> Marker

impl From<MarkerWriteError> for ValueWriteError

pub fn from(err: MarkerWriteError) -> ValueWriteError

impl<'a> From<ValueReadError> for DecodeStringError<'a>

pub fn from(err: ValueReadError) -> DecodeStringError<'a>

impl From<Error> for MarkerReadError

pub fn from(err: Error) -> MarkerReadError

impl From<Vec<u32, Global>> for IndexVec

pub fn from(v: Vec<u32, Global>) -> IndexVec

impl<X> From<Range<X>> for Uniform<X> where
    X: SampleUniform, 

pub fn from(r: Range<X>) -> Uniform<X>

impl<X> From<RangeInclusive<X>> for Uniform<X> where
    X: SampleUniform, 

pub fn from(r: RangeInclusive<X>) -> Uniform<X>

impl From<Vec<usize, Global>> for IndexVec

pub fn from(v: Vec<usize, Global>) -> IndexVec

impl From<NonZeroU32> for Error

pub fn from(code: NonZeroU32) -> Error

impl From<Error> for Error

pub fn from(error: Error) -> Error

impl From<NonZeroU32> for Error

pub fn from(code: NonZeroU32) -> Error

impl From<ChaCha20Core> for ChaCha20Rng

pub fn from(core: ChaCha20Core) -> ChaCha20Rng

impl From<ChaCha12Core> for ChaCha12Rng

pub fn from(core: ChaCha12Core) -> ChaCha12Rng

impl From<ChaCha8Core> for ChaCha8Rng

pub fn from(core: ChaCha8Core) -> ChaCha8Rng

impl<S3, S4, NI> From<u128x1_sse2<S3, S4, NI>> for vec128_storage

pub fn from(x: u128x1_sse2<S3, S4, NI>) -> vec128_storage

impl<S3, S4, NI> From<u32x4_sse2<S3, S4, NI>> for vec128_storage

pub fn from(x: u32x4_sse2<S3, S4, NI>) -> vec128_storage

impl<S3, S4, NI> From<u64x2_sse2<S3, S4, NI>> for vec128_storage

pub fn from(x: u64x2_sse2<S3, S4, NI>) -> vec128_storage

impl<NI> From<u32x4x4_avx2<NI>> for vec512_storage

pub fn from(x: u32x4x4_avx2<NI>) -> vec512_storage

impl<W, G> From<x2<W, G>> for vec256_storage where
    W: Copy,
    vec128_storage: From<W>, 

pub fn from(x: x2<W, G>) -> vec256_storage

impl<W> From<x4<W>> for vec512_storage where
    W: Copy,
    vec128_storage: From<W>, 

pub fn from(x: x4<W>) -> vec512_storage

impl From<Errors> for ParseError

pub fn from(Errors) -> ParseError

impl From<u8> for Level

pub fn from(number: u8) -> Level

Create level by number

impl<'_, T, A> From<&'_ mut [T]> for TinyVec<A> where
    T: Clone + Default,
    A: Array<Item = T>, 

#[must_use]

pub fn from(slice: &mut [T]) -> TinyVec<A>

impl<'_, T, A> From<&'_ [T]> for TinyVec<A> where
    T: Clone + Default,
    A: Array<Item = T>, 

#[must_use]

pub fn from(slice: &[T]) -> TinyVec<A>

impl<'s, T> From<&'s mut [T]> for SliceVec<'s, T>

pub fn from(data: &'s mut [T]) -> SliceVec<'s, T>

Uses the full slice as the initial length.

Example

let mut arr = [0_i32; 2];
let mut sv = SliceVec::from(&mut arr[..]);

impl<'s, T, A> From<&'s mut A> for SliceVec<'s, T> where
    A: AsMut<[T]>, 

pub fn from(a: &'s mut A) -> SliceVec<'s, T>

Calls AsRef::as_mut then uses the full slice as the initial length.

Example

let mut arr = [0, 0];
let mut sv = SliceVec::from(&mut arr);

impl<A> From<A> for ArrayVec<A> where
    A: Array, 

#[must_use]

pub fn from(data: A) -> ArrayVec<A>

The output has a length equal to the full array.

If you want to select a length, use from_array_len

impl<A> From<A> for TinyVec<A> where
    A: Array, 

pub fn from(array: A) -> TinyVec<A>

impl<A> From<ArrayVec<A>> for TinyVec<A> where
    A: Array, 

#[must_use]

pub fn from(arr: ArrayVec<A>) -> TinyVec<A>

impl<'a> From<&'a str> for ErrorKind

pub fn from(s: &'a str) -> ErrorKind

impl From<Error> for ErrorKind

pub fn from(e: Error) -> ErrorKind

impl From<String> for ErrorKind

pub fn from(s: String) -> ErrorKind

impl From<ErrorKind> for Error

pub fn from(e: ErrorKind) -> Error

impl From<String> for Error

pub fn from(s: String) -> Error

impl From<Error> for Error

An error happened while serializing JSON

pub fn from(e: Error) -> Error

impl<'a> From<&'a str> for Error

pub fn from(s: &'a str) -> Error

impl From<Error> for ErrorKind

pub fn from(e: Error) -> ErrorKind

impl From<ErrorKind> for Error

pub fn from(e: ErrorKind) -> Error

impl From<String> for Error

pub fn from(s: String) -> Error

impl From<ErrorKind> for Error

pub fn from(e: ErrorKind) -> Error

impl From<Error> for Error

Link to a std::io::Error type.

pub fn from(e: Error) -> Error

impl From<Error> for ErrorKind

pub fn from(e: Error) -> ErrorKind

impl From<String> for ErrorKind

pub fn from(s: String) -> ErrorKind

impl<'a> From<&'a str> for ErrorKind

pub fn from(s: &'a str) -> ErrorKind

impl From<ErrorKind> for ErrorKind

Link to another ErrorChain.

pub fn from(e: ErrorKind) -> ErrorKind

impl<'a> From<&'a str> for Error

pub fn from(s: &'a str) -> Error

impl<'a> From<&'a str> for Error

pub fn from(s: &'a str) -> Error

impl From<String> for ErrorKind

pub fn from(s: String) -> ErrorKind

impl From<String> for Error

pub fn from(s: String) -> Error

impl From<Error> for Error

Link to another ErrorChain.

pub fn from(e: Error) -> Error

impl<'a> From<&'a str> for ErrorKind

pub fn from(s: &'a str) -> ErrorKind

impl From<Errors> for ParseError

pub fn from(Errors) -> ParseError

impl From<CharRange> for CharIter

pub fn from(range: CharRange) -> CharIter

impl From<CharIter> for CharRange

pub fn from(iter: CharIter) -> CharRange

impl From<PersistError> for NamedTempFile

pub fn from(error: PersistError) -> NamedTempFile

impl From<PathPersistError> for TempPath

pub fn from(error: PathPersistError) -> TempPath

impl From<Error> for Error

pub fn from(e: Error) -> Error

impl<'a, 'z> From<&'z ArgGroup<'a>> for ArgGroup<'a>

pub fn from(g: &'z ArgGroup<'a>) -> ArgGroup<'a>

impl From<Error> for Error

pub fn from(e: Error) -> Error

impl<'a, 'b, 'z> From<&'z Arg<'a, 'b>> for Arg<'a, 'b>

pub fn from(a: &'z Arg<'a, 'b>) -> Arg<'a, 'b>

impl From<Colour> for Style

pub fn from(colour: Colour) -> Style

You can turn a Colour into a Style with the foreground colour set with the From trait.

use ansi_term::{Style, Colour};
let green_foreground = Style::default().fg(Colour::Green);
assert_eq!(green_foreground, Colour::Green.normal());
assert_eq!(green_foreground, Colour::Green.into());
assert_eq!(green_foreground, Style::from(Colour::Green));

impl<'a, I, S> From<I> for ANSIGenericString<'a, S> where
    S: 'a + ToOwned + ?Sized,
    I: Into<Cow<'a, S>>,
    <S as ToOwned>::Owned: Debug, 

pub fn from(input: I) -> ANSIGenericString<'a, S>

impl From<StaticUser> for &'static str

fn from(x: StaticUser) -> &'static str

impl<'_derivative_strum> From<&'_derivative_strum StaticUser> for &'static str

fn from(x: &'_derivative_strum StaticUser) -> &'static str

Loading content...

Implementors

impl From<AccountsSaveError> for InternalError

pub fn from(source: AccountsSaveError) -> InternalError

impl From<AccountsSaveError> for MgmtError

pub fn from(ase: AccountsSaveError) -> MgmtError

impl From<InternalError> for ApiPieceOpError

pub fn from(x: InternalError) -> ApiPieceOpError

impl From<InternalError> for OnlineError

pub fn from(source: InternalError) -> OnlineError

impl From<InternalError> for SpecError

pub fn from(ie: InternalError) -> SpecError

impl From<InternalError> for LibraryLoadError

pub fn from(source: InternalError) -> LibraryLoadError

impl From<InternalError> for MgmtError

pub fn from(e: InternalError) -> MgmtError

impl From<OccultationKindAlwaysOk> for OccultationKindGeneral<(OccDisplacement, ZCoord)>

pub fn from(
    i: OccultationKindAlwaysOk
) -> OccultationKindGeneral<(OccDisplacement, ZCoord)>

impl From<OnlineError> for ApiPieceOpError

pub fn from(source: OnlineError) -> ApiPieceOpError

impl From<PieceOpError> for ApiPieceOpError

pub fn from(source: PieceOpError) -> ApiPieceOpError

impl From<PieceUpdateOp<(), ()>> for PieceUpdateOps

pub fn from(op: PieceUpdateOp<(), ()>) -> PieceUpdateOps

impl From<SVGProcessingError> for InternalError

pub fn from(source: SVGProcessingError) -> InternalError

impl From<SVGProcessingError> for SpecError

pub fn from(se: SVGProcessingError) -> SpecError

impl From<SVGProcessingError> for MgmtError

pub fn from(se: SVGProcessingError) -> MgmtError

impl From<SpecError> for MgmtError

pub fn from(source: SpecError) -> MgmtError

impl From<ErrorKind> for otter_api_tests::io::Error

Intended for use for errors not exposed to the user, where allocating onto the heap (for normal construction via Error::new) is too costly.

pub fn from(kind: ErrorKind) -> Error

Converts an ErrorKind into an Error.

This conversion allocates a new error with a simple representation of error kind.

Examples

use std::io::{Error, ErrorKind};

let not_found = ErrorKind::NotFound;
let error = Error::from(not_found);
assert_eq!("entity not found", format!("{}", error));

impl From<Infallible> for TryFromIntError

pub fn from(x: Infallible) -> TryFromIntError

impl From<Infallible> for TryFromSliceError

pub fn from(x: Infallible) -> TryFromSliceError

impl From<Errno> for otter_api_tests::imports::nix::Error

pub fn from(errno: Errno) -> Error

impl From<Errno> for otter_api_tests::io::Error

pub fn from(err: Errno) -> Error

impl From<Error> for InternalError

pub fn from(source: Error) -> InternalError

impl From<Error> for AccountsSaveError

pub fn from(source: Error) -> AccountsSaveError

impl From<Error> for InternalError

pub fn from(source: Error) -> InternalError

impl From<bool> for otter_api_tests::serde_json::Value

pub fn from(f: bool) -> Value

Convert boolean to Value

Examples

use serde_json::Value;

let b = false;
let x: Value = b.into();

impl From<bool> for otter_api_tests::imports::toml::Value

pub fn from(val: bool) -> Value

impl From<bool> for AtomicBool

pub fn from(b: bool) -> AtomicBool

Converts a bool into an AtomicBool.

Examples

use std::sync::atomic::AtomicBool;
let atomic_bool = AtomicBool::from(true);
assert_eq!(format!("{:?}", atomic_bool), "true")

impl From<f32> for otter_api_tests::serde_json::Value

pub fn from(f: f32) -> Value

Convert 32-bit floating point number to Value

Examples

use serde_json::Value;

let f: f32 = 13.37;
let x: Value = f.into();

impl From<f32> for otter_api_tests::imports::toml::Value

pub fn from(val: f32) -> Value

impl From<f64> for otter_api_tests::serde_json::Value

pub fn from(f: f64) -> Value

Convert 64-bit floating point number to Value

Examples

use serde_json::Value;

let f: f64 = 13.37;
let x: Value = f.into();

impl From<f64> for otter_api_tests::imports::toml::Value

pub fn from(val: f64) -> Value

impl From<i8> for otter_api_tests::serde_json::Value

pub fn from(n: i8) -> Value

impl From<i8> for otter_api_tests::imports::toml::Value

pub fn from(val: i8) -> Value

impl From<i8> for Number

pub fn from(i: i8) -> Number

impl From<i8> for AtomicI8

pub fn from(v: i8) -> AtomicI8

Converts an i8 into an AtomicI8.

impl From<i16> for otter_api_tests::serde_json::Value

pub fn from(n: i16) -> Value

impl From<i16> for Number

pub fn from(i: i16) -> Number

impl From<i16> for AtomicI16

pub fn from(v: i16) -> AtomicI16

Converts an i16 into an AtomicI16.

impl From<i32> for otter_api_tests::serde_json::Value

pub fn from(n: i32) -> Value

impl From<i32> for otter_api_tests::imports::toml::Value

pub fn from(val: i32) -> Value

impl From<i32> for Number

pub fn from(i: i32) -> Number

impl From<i32> for ClockId

pub fn from(clk_id: i32) -> ClockId

impl From<i32> for AtomicI32

pub fn from(v: i32) -> AtomicI32

Converts an i32 into an AtomicI32.

impl From<i64> for otter_api_tests::serde_json::Value

pub fn from(n: i64) -> Value

impl From<i64> for otter_api_tests::imports::toml::Value

pub fn from(val: i64) -> Value

impl From<i64> for Number

pub fn from(i: i64) -> Number

impl From<i64> for AtomicI64

pub fn from(v: i64) -> AtomicI64

Converts an i64 into an AtomicI64.

impl From<isize> for otter_api_tests::serde_json::Value

pub fn from(n: isize) -> Value

impl From<isize> for Number

pub fn from(i: isize) -> Number

impl From<isize> for AtomicIsize

pub fn from(v: isize) -> AtomicIsize

Converts an isize into an AtomicIsize.

impl From<!> for Infallible

pub fn from(x: !) -> Infallible

impl From<!> for TryFromIntError

pub fn from(never: !) -> TryFromIntError

impl From<(WhatResponseToClientOp, PieceUpdateOp<(), ()>, Vec<LogEntry, Global>)> for PieceUpdate

pub fn from(
    (WhatResponseToClientOp, PieceUpdateOp<(), ()>, Vec<LogEntry, Global>)
) -> PieceUpdate

impl From<(Box<Item, Global>, Option<(OccultIlkName, Arc<dyn OccultedPieceTrait + 'static>)>)> for PieceSpecLoaded

pub fn from(
    (Box<Item, Global>, Option<(OccultIlkName, Arc<dyn OccultedPieceTrait + 'static>)>)
) -> PieceSpecLoaded

impl From<u8> for otter_api_tests::serde_json::Value

pub fn from(n: u8) -> Value

impl From<u8> for otter_api_tests::imports::toml::Value

pub fn from(val: u8) -> Value

impl From<u8> for Number

pub fn from(u: u8) -> Number

impl From<u8> for FaceId

pub fn from(value: u8) -> FaceId

impl From<u8> for AtomicU8

pub fn from(v: u8) -> AtomicU8

Converts an u8 into an AtomicU8.

impl From<u16> for otter_api_tests::serde_json::Value

pub fn from(n: u16) -> Value

impl From<u16> for Number

pub fn from(u: u16) -> Number

impl From<u16> for AtomicU16

pub fn from(v: u16) -> AtomicU16

Converts an u16 into an AtomicU16.

impl From<u32> for otter_api_tests::serde_json::Value

pub fn from(n: u32) -> Value

impl From<u32> for otter_api_tests::imports::toml::Value

pub fn from(val: u32) -> Value

impl From<u32> for Number

pub fn from(u: u32) -> Number

impl From<u32> for AtomicU32

pub fn from(v: u32) -> AtomicU32

Converts an u32 into an AtomicU32.

impl From<u64> for otter_api_tests::serde_json::Value

pub fn from(n: u64) -> Value

impl From<u64> for Number

pub fn from(u: u64) -> Number

impl From<u64> for LimbVal

pub fn from(raw: u64) -> LimbVal

impl From<u64> for AtomicU64

pub fn from(v: u64) -> AtomicU64

Converts an u64 into an AtomicU64.

impl From<()> for otter_api_tests::serde_json::Value

pub fn from(()) -> Value

Convert () to Value

Examples

use serde_json::Value;

let u = ();
let x: Value = u.into();

impl From<usize> for otter_api_tests::serde_json::Value

pub fn from(n: usize) -> Value

impl From<usize> for Number

pub fn from(u: usize) -> Number

impl From<usize> for DescId

pub fn from(value: usize) -> DescId

impl From<usize> for SvgId

pub fn from(value: usize) -> SvgId

impl From<usize> for FaceId

pub fn from(value: usize) -> FaceId

impl From<usize> for Notch

pub fn from(value: usize) -> Notch

impl From<usize> for AtomicUsize

pub fn from(v: usize) -> AtomicUsize

Converts an usize into an AtomicUsize.

impl From<Error> for InternalError

pub fn from(source: Error) -> InternalError

impl From<Error> for SVGProcessingError

pub fn from(Error) -> SVGProcessingError

impl From<Error> for AccountsSaveError

pub fn from(source: Error) -> AccountsSaveError

impl From<Error> for MgmtChannelReadError

pub fn from(source: Error) -> MgmtChannelReadError

impl From<Error> for FlexiLoggerError

pub fn from(source: Error) -> FlexiLoggerError

impl From<RecvError> for RecvTimeoutError

pub fn from(err: RecvError) -> RecvTimeoutError

Converts a RecvError into a RecvTimeoutError.

This conversion always returns RecvTimeoutError::Disconnected.

No data is allocated on the heap.

impl From<RecvError> for TryRecvError

pub fn from(err: RecvError) -> TryRecvError

Converts a RecvError into a TryRecvError.

This conversion always returns TryRecvError::Disconnected.

No data is allocated on the heap.

impl From<Error> for otter_api_tests::io::Error

pub fn from(j: Error) -> Error

Convert a serde_json::Error into an io::Error.

JSON syntax and data errors are turned into InvalidData IO errors. EOF errors are turned into UnexpectedEof IO errors.

use std::io;

enum MyError {
    Io(io::Error),
    Json(serde_json::Error),
}

impl From<serde_json::Error> for MyError {
    fn from(err: serde_json::Error) -> MyError {
        use serde_json::error::Category;
        match err.classify() {
            Category::Io => {
                MyError::Io(err.into())
            }
            Category::Syntax | Category::Data | Category::Eof => {
                MyError::Json(err)
            }
        }
    }
}

impl From<Map<String, Value>> for otter_api_tests::serde_json::Value

pub fn from(f: Map<String, Value>) -> Value

Convert map (with string keys) to Value

Examples

use serde_json::{Map, Value};

let mut m = Map::new();
m.insert("Lorem".to_string(), "ipsum".into());
let x: Value = m.into();

impl From<Number> for otter_api_tests::serde_json::Value

pub fn from(f: Number) -> Value

Convert Number to Value

Examples

use serde_json::{Number, Value};

let n = Number::from(7);
let x: Value = n.into();

impl From<CoordinateOverflow> for InternalError

pub fn from(source: CoordinateOverflow) -> InternalError

impl From<CoordinateOverflow> for MgmtError

pub fn from(source: CoordinateOverflow) -> MgmtError

impl From<Duration> for TimeSpec

pub fn from(duration: Duration) -> TimeSpec

impl From<File> for Stdio

pub fn from(file: File) -> Stdio

Converts a File into a Stdio

Examples

File will be converted to Stdio using Stdio::from under the hood.

use std::fs::File;
use std::process::Command;

// With the `foo.txt` file containing `Hello, world!"
let file = File::open("foo.txt").unwrap();

let reverse = Command::new("rev")
    .stdin(file)  // Implicit File conversion into a Stdio
    .output()
    .expect("failed reverse command");

assert_eq!(reverse.stdout, b"!dlrow ,olleH");

impl From<PathBuf> for Arc<Path>

pub fn from(s: PathBuf) -> Arc<Path>

Converts a PathBuf into an Arc by moving the PathBuf data into a new Arc buffer.

impl From<TimeSpec> for otter_api_tests::shapelib::Duration

pub fn from(timespec: TimeSpec) -> Duration

impl From<TryFromIntError> for Overflow

pub fn from(TryFromIntError) -> Overflow

impl From<Utf8Error> for otter_api_tests::imports::rmp_serde::decode::Error

pub fn from(err: Utf8Error) -> Error

impl From<AccountNotFound> for MgmtError

pub fn from(source: AccountNotFound) -> MgmtError

impl From<CircleShape> for Outline

pub fn from(v: CircleShape) -> Outline

impl From<ClientId> for KeyData

pub fn from(p: ClientId) -> KeyData

impl From<GameBeingDestroyed> for OnlineError

pub fn from(source: GameBeingDestroyed) -> OnlineError

impl From<GameBeingDestroyed> for MgmtError

pub fn from(source: GameBeingDestroyed) -> MgmtError

impl From<HtmlLit> for &'static HtmlStr

pub fn from(l: HtmlLit) -> &'static HtmlStr

impl From<HtmlLit> for Html

pub fn from(l: HtmlLit) -> Html

impl From<OccId> for KeyData

pub fn from(p: OccId) -> KeyData

impl From<PlayerId> for KeyData

pub fn from(p: PlayerId) -> KeyData

impl From<PlayerNotFound> for ApiPieceOpError

pub fn from(x: PlayerNotFound) -> ApiPieceOpError

impl From<PlayerNotFound> for OnlineError

pub fn from(source: PlayerNotFound) -> OnlineError

impl From<PlayerNotFound> for MgmtError

pub fn from(source: PlayerNotFound) -> MgmtError

impl From<RectShape> for Outline

pub fn from(v: RectShape) -> Outline

impl From<TokenDeliveryError> for MgmtError

pub fn from(source: TokenDeliveryError) -> MgmtError

impl From<UnsupportedColourSpec> for SpecError

pub fn from(source: UnsupportedColourSpec) -> SpecError

impl From<UnsupportedColourSpec> for LibraryLoadError

pub fn from(source: UnsupportedColourSpec) -> LibraryLoadError

impl From<VisiblePieceId> for KeyData

pub fn from(p: VisiblePieceId) -> KeyData

impl From<SystemTime> for DateTime<Local>

pub fn from(t: SystemTime) -> DateTime<Local>

impl From<SystemTime> for DateTime<Utc>

pub fn from(t: SystemTime) -> DateTime<Utc>

impl From<Overflow> for InternalError

pub fn from(source: Overflow) -> InternalError

impl From<Overflow> for MgmtError

pub fn from(source: Overflow) -> MgmtError

impl From<RangeBackwards> for LogicError

pub fn from(source: RangeBackwards) -> LogicError

impl From<TotallyUnboundedRange> for LogicError

pub fn from(source: TotallyUnboundedRange) -> LogicError

impl From<Error> for InternalError

pub fn from(source: Error) -> InternalError

impl From<Error> for AuthorisationError

pub fn from(a: Error) -> AuthorisationError

impl From<Error> for TokenDeliveryError

pub fn from(a: Error) -> TokenDeliveryError

impl From<DateTime<FixedOffset>> for DateTime<Local>

Convert a DateTime<FixedOffset> instance into a DateTime<Local> instance.

pub fn from(src: DateTime<FixedOffset>) -> DateTime<Local>

Convert this DateTime<FixedOffset> instance into a DateTime<Local> instance.

Conversion is performed via DateTime::with_timezone. Returns the equivalent value in local time.

impl From<DateTime<FixedOffset>> for DateTime<Utc>

Convert a DateTime<FixedOffset> instance into a DateTime<Utc> instance.

pub fn from(src: DateTime<FixedOffset>) -> DateTime<Utc>

Convert this DateTime<FixedOffset> instance into a DateTime<Utc> instance.

Conversion is performed via DateTime::with_timezone, accounting for the timezone difference.

impl From<DateTime<Local>> for DateTime<FixedOffset>

Convert a DateTime<Local> instance into a DateTime<FixedOffset> instance.

pub fn from(src: DateTime<Local>) -> DateTime<FixedOffset>

Convert this DateTime<Local> instance into a DateTime<FixedOffset> instance.

Conversion is performed via DateTime::with_timezone. Note that the converted value returned by this will be created with a fixed timezone offset of 0.

impl From<DateTime<Local>> for DateTime<Utc>

Convert a DateTime<Local> instance into a DateTime<Utc> instance.

pub fn from(src: DateTime<Local>) -> DateTime<Utc>

Convert this DateTime<Local> instance into a DateTime<Utc> instance.

Conversion is performed via DateTime::with_timezone, accounting for the difference in timezones.

impl From<DateTime<Utc>> for DateTime<FixedOffset>

Convert a DateTime<Utc> instance into a DateTime<FixedOffset> instance.

pub fn from(src: DateTime<Utc>) -> DateTime<FixedOffset>

Convert this DateTime<Utc> instance into a DateTime<FixedOffset> instance.

Conversion is done via DateTime::with_timezone. Note that the converted value returned by this will be created with a fixed timezone offset of 0.

impl From<DateTime<Utc>> for DateTime<Local>

Convert a DateTime<Utc> instance into a DateTime<Local> instance.

pub fn from(src: DateTime<Utc>) -> DateTime<Local>

Convert this DateTime<Utc> instance into a DateTime<Local> instance.

Conversion is performed via DateTime::with_timezone, accounting for the difference in timezones.

impl From<GlobError> for LibraryLoadError

pub fn from(source: GlobError) -> LibraryLoadError

impl From<termios> for Termios

pub fn from(termios: termios) -> Termios

impl From<timespec> for TimeSpec

pub fn from(ts: timespec) -> TimeSpec

impl From<timeval> for TimeVal

pub fn from(tv: timeval) -> TimeVal

impl From<ucred> for UnixCredentials

pub fn from(cred: ucred) -> UnixCredentials

impl From<SetLoggerError> for FlexiLoggerError

pub fn from(source: SetLoggerError) -> FlexiLoggerError

impl From<Termios> for termios

pub fn from(termios: Termios) -> termios

impl From<NotNan<f32>> for NotNan<f64>

pub fn from(v: NotNan<f32>) -> NotNan<f64>

impl From<KeyData> for AccountId

pub fn from(k: KeyData) -> AccountId

impl From<KeyData> for ClientId

pub fn from(d: KeyData) -> ClientId

impl From<KeyData> for OccId

pub fn from(d: KeyData) -> OccId

impl From<KeyData> for OccultIlkId

pub fn from(k: KeyData) -> OccultIlkId

impl From<KeyData> for PieceId

pub fn from(k: KeyData) -> PieceId

impl From<KeyData> for PlayerId

pub fn from(d: KeyData) -> PlayerId

impl From<KeyData> for VisiblePieceId

pub fn from(d: KeyData) -> VisiblePieceId

impl From<KeyData> for DefaultKey

pub fn from(k: KeyData) -> DefaultKey

impl From<Error> for FlexiLoggerError

pub fn from(source: Error) -> FlexiLoggerError

impl From<Error> for LibraryLoadError

pub fn from(source: Error) -> LibraryLoadError

impl From<Error> for otter_api_tests::io::Error

pub fn from(e: Error) -> Error

impl From<Datetime> for otter_api_tests::imports::toml::Value

pub fn from(val: Datetime) -> Value

impl From<Map<String, Value>> for otter_api_tests::imports::toml::Value

pub fn from(val: Map<String, Value>) -> Value

impl From<NonZeroI8> for NonZeroI16

Converts NonZeroI8 to NonZeroI16 losslessly.

pub fn from(small: NonZeroI8) -> NonZeroI16

impl From<NonZeroI8> for NonZeroI32

Converts NonZeroI8 to NonZeroI32 losslessly.

pub fn from(small: NonZeroI8) -> NonZeroI32

impl From<NonZeroI8> for NonZeroI64

Converts NonZeroI8 to NonZeroI64 losslessly.

pub fn from(small: NonZeroI8) -> NonZeroI64

impl From<NonZeroI8> for NonZeroI128

Converts NonZeroI8 to NonZeroI128 losslessly.

pub fn from(small: NonZeroI8) -> NonZeroI128

impl From<NonZeroI8> for NonZeroIsize

Converts NonZeroI8 to NonZeroIsize losslessly.

pub fn from(small: NonZeroI8) -> NonZeroIsize

impl From<NonZeroI16> for NonZeroI32

Converts NonZeroI16 to NonZeroI32 losslessly.

pub fn from(small: NonZeroI16) -> NonZeroI32

impl From<NonZeroI16> for NonZeroI64

Converts NonZeroI16 to NonZeroI64 losslessly.

pub fn from(small: NonZeroI16) -> NonZeroI64

impl From<NonZeroI16> for NonZeroI128

Converts NonZeroI16 to NonZeroI128 losslessly.

pub fn from(small: NonZeroI16) -> NonZeroI128

impl From<NonZeroI16> for NonZeroIsize

Converts NonZeroI16 to NonZeroIsize losslessly.

pub fn from(small: NonZeroI16) -> NonZeroIsize

impl From<NonZeroI32> for NonZeroI64

Converts NonZeroI32 to NonZeroI64 losslessly.

pub fn from(small: NonZeroI32) -> NonZeroI64

impl From<NonZeroI32> for NonZeroI128

Converts NonZeroI32 to NonZeroI128 losslessly.

pub fn from(small: NonZeroI32) -> NonZeroI128

impl From<NonZeroI64> for NonZeroI128

Converts NonZeroI64 to NonZeroI128 losslessly.

pub fn from(small: NonZeroI64) -> NonZeroI128

impl From<NonZeroU8> for NonZeroUsize

Converts NonZeroU8 to NonZeroUsize losslessly.

pub fn from(small: NonZeroU8) -> NonZeroUsize

impl From<NonZeroU8> for NonZeroI16

Converts NonZeroU8 to NonZeroI16 losslessly.

pub fn from(small: NonZeroU8) -> NonZeroI16

impl From<NonZeroU8> for NonZeroI32

Converts NonZeroU8 to NonZeroI32 losslessly.

pub fn from(small: NonZeroU8) -> NonZeroI32

impl From<NonZeroU8> for NonZeroI64

Converts NonZeroU8 to NonZeroI64 losslessly.

pub fn from(small: NonZeroU8) -> NonZeroI64

impl From<NonZeroU8> for NonZeroI128

Converts NonZeroU8 to NonZeroI128 losslessly.

pub fn from(small: NonZeroU8) -> NonZeroI128

impl From<NonZeroU8> for NonZeroIsize

Converts NonZeroU8 to NonZeroIsize losslessly.

pub fn from(small: NonZeroU8) -> NonZeroIsize

impl From<NonZeroU8> for NonZeroU16

Converts NonZeroU8 to NonZeroU16 losslessly.

pub fn from(small: NonZeroU8) -> NonZeroU16

impl From<NonZeroU8> for NonZeroU32

Converts NonZeroU8 to NonZeroU32 losslessly.

pub fn from(small: NonZeroU8) -> NonZeroU32

impl From<NonZeroU8> for NonZeroU64

Converts NonZeroU8 to NonZeroU64 losslessly.

pub fn from(small: NonZeroU8) -> NonZeroU64

impl From<NonZeroU8> for NonZeroU128

Converts NonZeroU8 to NonZeroU128 losslessly.

pub fn from(small: NonZeroU8) -> NonZeroU128

impl From<NonZeroU16> for NonZeroUsize

Converts NonZeroU16 to NonZeroUsize losslessly.

pub fn from(small: NonZeroU16) -> NonZeroUsize

impl From<NonZeroU16> for NonZeroI32

Converts NonZeroU16 to NonZeroI32 losslessly.

pub fn from(small: NonZeroU16) -> NonZeroI32

impl From<NonZeroU16> for NonZeroI64

Converts NonZeroU16 to NonZeroI64 losslessly.

pub fn from(small: NonZeroU16) -> NonZeroI64

impl From<NonZeroU16> for NonZeroI128

Converts NonZeroU16 to NonZeroI128 losslessly.

pub fn from(small: NonZeroU16) -> NonZeroI128

impl From<NonZeroU16> for NonZeroU32

Converts NonZeroU16 to NonZeroU32 losslessly.

pub fn from(small: NonZeroU16) -> NonZeroU32

impl From<NonZeroU16> for NonZeroU64

Converts NonZeroU16 to NonZeroU64 losslessly.

pub fn from(small: NonZeroU16) -> NonZeroU64

impl From<NonZeroU16> for NonZeroU128

Converts NonZeroU16 to NonZeroU128 losslessly.

pub fn from(small: NonZeroU16) -> NonZeroU128

impl From<NonZeroU32> for NonZeroI64

Converts NonZeroU32 to NonZeroI64 losslessly.

pub fn from(small: NonZeroU32) -> NonZeroI64

impl From<NonZeroU32> for NonZeroI128

Converts NonZeroU32 to NonZeroI128 losslessly.

pub fn from(small: NonZeroU32) -> NonZeroI128

impl From<NonZeroU32> for NonZeroU64

Converts NonZeroU32 to NonZeroU64 losslessly.

pub fn from(small: NonZeroU32) -> NonZeroU64

impl From<NonZeroU32> for NonZeroU128

Converts NonZeroU32 to NonZeroU128 losslessly.

pub fn from(small: NonZeroU32) -> NonZeroU128

impl From<NonZeroU64> for NonZeroI128

Converts NonZeroU64 to NonZeroI128 losslessly.

pub fn from(small: NonZeroU64) -> NonZeroI128

impl From<NonZeroU64> for NonZeroU128

Converts NonZeroU64 to NonZeroU128 losslessly.

pub fn from(small: NonZeroU64) -> NonZeroU128

impl From<ParseFloatError> for SVGProcessingError

pub fn from(ParseFloatError) -> SVGProcessingError

impl From<ParseIntError> for FlexiLoggerError

pub fn from(source: ParseIntError) -> FlexiLoggerError

impl From<Box<Path, Global>> for PathBuf

pub fn from(boxed: Box<Path, Global>) -> PathBuf

Converts a Box<Path> into a PathBuf

This conversion does not allocate or copy memory.

impl From<FromUtf8Error> for otter_api_tests::imports::nix::Error

pub fn from(FromUtf8Error) -> Error

impl From<String> for otter_api_tests::serde_json::Value

pub fn from(f: String) -> Value

Convert String to Value

Examples

use serde_json::Value;

let s: String = "lorem".to_string();
let x: Value = s.into();

impl From<String> for otter_api_tests::imports::toml::Value

pub fn from(val: String) -> Value

impl From<String> for Arc<str>

pub fn from(v: String) -> Arc<str>

Allocate a reference-counted str and copy v into it.

Example

let unique: String = "eggplant".to_owned();
let shared: Arc<str> = Arc::from(unique);
assert_eq!("eggplant", &shared[..]);

impl From<String> for PathBuf

pub fn from(s: String) -> PathBuf

Converts a String into a PathBuf

This conversion does not allocate or copy memory.

impl From<CString> for Arc<CStr>

pub fn from(s: CString) -> Arc<CStr>

Converts a CString into a Arc<CStr> without copying or allocating.

impl From<NulError> for otter_api_tests::io::Error

pub fn from(NulError) -> Error

Converts a NulError into a io::Error.

impl From<OsString> for Arc<OsStr>

pub fn from(s: OsString) -> Arc<OsStr>

Converts a OsString into a Arc<OsStr> without copying or allocating.

impl From<OsString> for PathBuf

pub fn from(s: OsString) -> PathBuf

Converts an OsString into a PathBuf

This conversion does not allocate or copy memory.

impl From<ChildStderr> for Stdio

pub fn from(child: ChildStderr) -> Stdio

Converts a ChildStderr into a Stdio

Examples

use std::process::{Command, Stdio};

let reverse = Command::new("rev")
    .arg("non_existing_file.txt")
    .stderr(Stdio::piped())
    .spawn()
    .expect("failed reverse command");

let cat = Command::new("cat")
    .arg("-")
    .stdin(reverse.stderr.unwrap()) // Converted into a Stdio here
    .output()
    .expect("failed echo command");

assert_eq!(
    String::from_utf8_lossy(&cat.stdout),
    "rev: cannot open non_existing_file.txt: No such file or directory\n"
);

impl From<ChildStdin> for Stdio

pub fn from(child: ChildStdin) -> Stdio

Converts a ChildStdin into a Stdio

Examples

ChildStdin will be converted to Stdio using Stdio::from under the hood.

use std::process::{Command, Stdio};

let reverse = Command::new("rev")
    .stdin(Stdio::piped())
    .spawn()
    .expect("failed reverse command");

let _echo = Command::new("echo")
    .arg("Hello, world!")
    .stdout(reverse.stdin.unwrap()) // Converted into a Stdio here
    .output()
    .expect("failed echo command");

// "!dlrow ,olleH" echoed to console

impl From<ChildStdout> for Stdio

pub fn from(child: ChildStdout) -> Stdio

Converts a ChildStdout into a Stdio

Examples

ChildStdout will be converted to Stdio using Stdio::from under the hood.

use std::process::{Command, Stdio};

let hello = Command::new("echo")
    .arg("Hello, world!")
    .stdout(Stdio::piped())
    .spawn()
    .expect("failed echo command");

let reverse = Command::new("rev")
    .stdin(hello.stdout.unwrap())  // Converted into a Stdio here
    .output()
    .expect("failed reverse command");

assert_eq!(reverse.stdout, b"!dlrow ,olleH\n");

impl From<Error> for otter_api_tests::io::Error

pub fn from(err: Error) -> Error

impl From<PathPersistError> for otter_api_tests::io::Error

pub fn from(error: PathPersistError) -> Error

impl From<PersistError> for otter_api_tests::io::Error

pub fn from(error: PersistError) -> Error

impl From<Error> for otter_api_tests::io::Error

pub fn from(error: Error) -> Error

impl From<DataWriteError> for otter_api_tests::io::Error

pub fn from(err: DataWriteError) -> Error

impl From<Error> for FlexiLoggerError

pub fn from(source: Error) -> FlexiLoggerError

impl From<Error> for otter_api_tests::io::Error

pub fn from(walk_err: Error) -> Error

Convert the Error to an io::Error, preserving the original Error as the “inner error”. Note that this also makes the display of the error include the context.

This is different from into_io_error which returns the original io::Error.

impl From<Error> for otter_api_tests::io::Error

pub fn from(err: Error) -> Error

impl From<Errors> for Result<(), Errors>

pub fn from(e: Errors) -> Result<(), Errors>

impl From<MarkerReadError> for otter_api_tests::imports::rmp_serde::decode::Error

pub fn from(err: MarkerReadError) -> Error

impl From<MarkerWriteError> for otter_api_tests::io::Error

pub fn from(err: MarkerWriteError) -> Error

impl From<NumValueReadError> for otter_api_tests::imports::rmp_serde::decode::Error

pub fn from(err: NumValueReadError) -> Error

impl From<ParserNumber> for Number

pub fn from(value: ParserNumber) -> Number

impl From<StreamResult> for Result<MZStatus, MZError>

pub fn from(res: StreamResult) -> Result<MZStatus, MZError>

impl From<StreamResult> for Result<MZStatus, MZError>

pub fn from(res: StreamResult) -> Result<MZStatus, MZError>

impl From<TimerSpec> for Expiration

pub fn from(timerspec: TimerSpec) -> Expiration

impl From<ValueReadError> for otter_api_tests::imports::rmp_serde::decode::Error

pub fn from(err: ValueReadError) -> Error

impl From<ValueWriteError> for otter_api_tests::imports::rmp_serde::encode::Error

pub fn from(err: ValueWriteError) -> Error

impl From<ValueWriteError> for otter_api_tests::io::Error

pub fn from(err: ValueWriteError) -> Error

impl<'_> From<&'_ str> for Arc<str>

pub fn from(v: &str) -> Arc<str>

Allocate a reference-counted str and copy v into it.

Example

let shared: Arc<str> = Arc::from("eggplant");
assert_eq!("eggplant", &shared[..]);

impl<'_> From<&'_ OsStr> for Arc<OsStr>

pub fn from(s: &OsStr) -> Arc<OsStr>

impl<'_> From<&'_ HtmlStr> for Html

pub fn from(l: &HtmlStr) -> Html

impl<'_> From<&'_ LinksTable> for Html

pub fn from(links: &LinksTable) -> Html

impl<'_> From<&'_ group> for Group

pub fn from(gr: &group) -> Group

impl<'_> From<&'_ passwd> for User

pub fn from(pw: &passwd) -> User

impl<'_> From<&'_ CStr> for Arc<CStr>

pub fn from(s: &CStr) -> Arc<CStr>

impl<'_> From<&'_ Path> for Arc<Path>

pub fn from(s: &Path) -> Arc<Path>

Converts a Path into an Arc by copying the Path data into a new Arc buffer.

impl<'_> From<&'_ StreamResult> for Result<MZStatus, MZError>

pub fn from(res: &StreamResult) -> Result<MZStatus, MZError>

impl<'_> From<&'_ StreamResult> for Result<MZStatus, MZError>

pub fn from(res: &StreamResult) -> Result<MZStatus, MZError>

impl<'_, T> From<&'_ T> for PathBuf where
    T: AsRef<OsStr> + ?Sized, 

pub fn from(s: &T) -> PathBuf

impl<'_, T> From<&'_ T> for NonNull<T> where
    T: ?Sized, 

pub fn from(reference: &T) -> NonNull<T>

impl<'_, T> From<&'_ mut T> for NonNull<T> where
    T: ?Sized, 

pub fn from(reference: &mut T) -> NonNull<T>

impl<'_, T> From<&'_ [T]> for Arc<[T]> where
    T: Clone, 

pub fn from(v: &[T]) -> Arc<[T]>

Allocate a reference-counted slice and fill it by cloning v’s items.

Example

let original: &[i32] = &[1, 2, 3];
let shared: Arc<[i32]> = Arc::from(original);
assert_eq!(&[1, 2, 3], &shared[..]);

impl<'a> From<&'a str> for otter_api_tests::serde_json::Value

pub fn from(f: &str) -> Value

Convert string slice to Value

Examples

use serde_json::Value;

let s: &str = "lorem";
let x: Value = s.into();

impl<'a> From<&'a str> for Cow<'a, str>

pub fn from(s: &'a str) -> Cow<'a, str>

Converts a string slice into a Borrowed variant. No heap allocation is performed, and the string is not copied.

Example

assert_eq!(Cow::from("eggplant"), Cow::Borrowed("eggplant"));

impl<'a> From<&'a str> for otter_api_tests::imports::toml::Value

pub fn from(val: &'a str) -> Value

impl<'a> From<&'a OsStr> for Cow<'a, OsStr>

pub fn from(s: &'a OsStr) -> Cow<'a, OsStr>

impl<'a> From<&'a PathBuf> for Cow<'a, Path>

pub fn from(p: &'a PathBuf) -> Cow<'a, Path>

impl<'a> From<&'a sigevent> for SigEvent

pub fn from(sigevent: &sigevent) -> SigEvent

impl<'a> From<&'a UnixSocketAddr> for AddrName<'a>

pub fn from(addr: &'a UnixSocketAddr) -> AddrName<'a>

impl<'a> From<&'a String> for Cow<'a, str>

pub fn from(s: &'a String) -> Cow<'a, str>

Converts a String reference into a Borrowed variant. No heap allocation is performed, and the string is not copied.

Example

let s = "eggplant".to_string();
assert_eq!(Cow::from(&s), Cow::Borrowed("eggplant"));

impl<'a> From<&'a CStr> for Cow<'a, CStr>

pub fn from(s: &'a CStr) -> Cow<'a, CStr>

impl<'a> From<&'a CString> for Cow<'a, CStr>

pub fn from(s: &'a CString) -> Cow<'a, CStr>

impl<'a> From<&'a OsString> for Cow<'a, OsStr>

pub fn from(s: &'a OsString) -> Cow<'a, OsStr>

impl<'a> From<&'a Path> for Cow<'a, Path>

pub fn from(s: &'a Path) -> Cow<'a, Path>

impl<'a> From<Cow<'a, str>> for otter_api_tests::serde_json::Value

pub fn from(f: Cow<'a, str>) -> Value

Convert copy-on-write string to Value

Examples

use serde_json::Value;
use std::borrow::Cow;

let s: Cow<str> = Cow::Borrowed("lorem");
let x: Value = s.into();

use serde_json::Value;
use std::borrow::Cow;

let s: Cow<str> = Cow::Owned("lorem".to_string());
let x: Value = s.into();

impl<'a> From<Cow<'a, Path>> for PathBuf

pub fn from(p: Cow<'a, Path>) -> PathBuf

impl<'a> From<PathBuf> for Cow<'a, Path>

pub fn from(s: PathBuf) -> Cow<'a, Path>

impl<'a> From<String> for Cow<'a, str>

pub fn from(s: String) -> Cow<'a, str>

Converts a String into an Owned variant. No heap allocation is performed, and the string is not copied.

Example

let s = "eggplant".to_string();
let s2 = "eggplant".to_string();
assert_eq!(Cow::from(s), Cow::<'static, str>::Owned(s2));

impl<'a> From<Vec<AioCb<'a>, Global>> for LioCb<'a>

pub fn from(src: Vec<AioCb<'a>, Global>) -> LioCb<'a>

impl<'a> From<CString> for Cow<'a, CStr>

pub fn from(s: CString) -> Cow<'a, CStr>

impl<'a> From<OsString> for Cow<'a, OsStr>

pub fn from(s: OsString) -> Cow<'a, OsStr>

impl<'a> From<DecodeStringError<'a>> for otter_api_tests::imports::rmp_serde::decode::Error

pub fn from(err: DecodeStringError<'_>) -> Error

impl<'a> From<PercentDecode<'a>> for Cow<'a, [u8]>

pub fn from(iter: PercentDecode<'a>) -> Cow<'a, [u8]>

impl<'a> From<PercentDecode<'a>> for Cow<'a, [u8]>

pub fn from(iter: PercentDecode<'a>) -> Cow<'a, [u8]>

impl<'a> From<PercentEncode<'a>> for Cow<'a, str>

pub fn from(iter: PercentEncode<'a>) -> Cow<'a, str>

impl<'a, B> From<Cow<'a, B>> for Arc<B> where
    B: ToOwned + ?Sized,
    Arc<B>: From<&'a B>,
    Arc<B>: From<<B as ToOwned>::Owned>, 

pub fn from(cow: Cow<'a, B>) -> Arc<B>

impl<'a, E> From<PercentEncode<'a, E>> for Cow<'a, str> where
    E: EncodeSet, 

pub fn from(iter: PercentEncode<'a, E>) -> Cow<'a, str>

impl<'a, I, T> From<&'a IndexSlice<I, [T]>> for otter_api_tests::shapelib::IndexVec<I, T> where
    T: Clone,
    I: Idx, 

pub fn from(src: &'a IndexSlice<I, [T]>) -> IndexVec<I, T>

impl<'a, I, T> From<&'a mut IndexSlice<I, [T]>> for otter_api_tests::shapelib::IndexVec<I, T> where
    T: Clone,
    I: Idx, 

pub fn from(src: &'a mut IndexSlice<I, [T]>) -> IndexVec<I, T>

impl<'a, I, T> From<Cow<'a, IndexSlice<I, [T]>>> for otter_api_tests::shapelib::IndexVec<I, T> where
    I: Idx,
    IndexSlice<I, [T]>: ToOwned,
    <IndexSlice<I, [T]> as ToOwned>::Owned == IndexVec<I, T>, 

pub fn from(s: Cow<'a, IndexSlice<I, [T]>>) -> IndexVec<I, T>

impl<'a, I, T> From<&'a [T]> for &'a IndexSlice<I, [T]> where
    I: Idx, 

pub fn from(a: &'a [T]) -> &'a IndexSlice<I, [T]>

impl<'a, I, T> From<&'a mut [T]> for &'a mut IndexSlice<I, [T]> where
    I: Idx, 

pub fn from(a: &'a mut [T]) -> &'a mut IndexSlice<I, [T]>

impl<'a, T> From<&'a Option<T>> for Option<&'a T>

pub fn from(o: &'a Option<T>) -> Option<&'a T>

Converts from &Option<T> to Option<&T>.

Examples

Converts an Option<String> into an Option<usize>, preserving the original. The map method takes the self argument by value, consuming the original, so this technique uses as_ref to first take an Option to a reference to the value inside the original.

let s: Option<String> = Some(String::from("Hello, Rustaceans!"));
let o: Option<usize> = Option::from(&s).map(|ss: &String| ss.len());

println!("Can still print s: {:?}", s);

assert_eq!(o, Some(18));

impl<'a, T> From<&'a Vec<T, Global>> for Cow<'a, [T]> where
    T: Clone, 

pub fn from(v: &'a Vec<T, Global>) -> Cow<'a, [T]>

impl<'a, T> From<&'a mut Option<T>> for Option<&'a mut T>

pub fn from(o: &'a mut Option<T>) -> Option<&'a mut T>

Converts from &mut Option<T> to Option<&mut T>

Examples

let mut s = Some(String::from("Hello"));
let o: Option<&mut String> = Option::from(&mut s);

match o {
    Some(t) => *t = String::from("Hello, Rustaceans!"),
    None => (),
}

assert_eq!(s, Some(String::from("Hello, Rustaceans!")));

impl<'a, T> From<&'a T> for &'a OrderedFloat<T> where
    T: Float, 

pub fn from(t: &'a T) -> &'a OrderedFloat<T>

impl<'a, T> From<&'a mut T> for &'a mut OrderedFloat<T> where
    T: Float, 

pub fn from(t: &'a mut T) -> &'a mut OrderedFloat<T>

impl<'a, T> From<&'a [T]> for otter_api_tests::serde_json::Value where
    T: Clone + Into<Value>, 

pub fn from(f: &'a [T]) -> Value

Convert a slice to Value

Examples

use serde_json::Value;

let v: &[&str] = &["lorem", "ipsum", "dolor"];
let x: Value = v.into();

impl<'a, T> From<&'a [T]> for Cow<'a, [T]> where
    T: Clone, 

pub fn from(s: &'a [T]) -> Cow<'a, [T]>

impl<'a, T> From<Vec<T, Global>> for Cow<'a, [T]> where
    T: Clone, 

pub fn from(v: Vec<T, Global>) -> Cow<'a, [T]>

impl<'a, T> From<T> for Env<'a> where
    T: Into<Cow<'a, str>>, 

pub fn from(filter_env: T) -> Env<'a>

impl<'i, P, II, I> From<I> for PermSet<P> where
    I: IntoIterator<Item = II>,
    P: Perm,
    II: Borrow<P>, 

pub fn from(i: I) -> PermSet<P>

impl<'i, T: AsRef<str> + 'i, U: AsRef<str> + 'i, L: IntoIterator<Item = &'i (T, U)>> From<L> for Subst

fn from(l: L) -> Subst

impl<'t> From<Match<'t>> for Range<usize>

pub fn from(m: Match<'t>) -> Range<usize>

impl<'t> From<Match<'t>> for Range<usize>

pub fn from(m: Match<'t>) -> Range<usize>

impl<A> From<(A,)> for Zip<(<A as IntoIterator>::IntoIter,)> where
    A: IntoIterator, 

pub fn from(t: (A,)) -> Zip<(<A as IntoIterator>::IntoIter,)>

impl<A> From<A> for otter_api_tests::shapelib::ArrayVec<A> where
    A: Array, 

Create an ArrayVec from an array.

use arrayvec::ArrayVec;

let mut array = ArrayVec::from([1, 2, 3]);
assert_eq!(array.len(), 3);
assert_eq!(array.capacity(), 3);

pub fn from(array: A) -> ArrayVec<A>

impl<A, B> From<(A, B)> for Zip<(<A as IntoIterator>::IntoIter, <B as IntoIterator>::IntoIter)> where
    B: IntoIterator,
    A: IntoIterator, 

pub fn from(
    t: (A, B)
) -> Zip<(<A as IntoIterator>::IntoIter, <B as IntoIterator>::IntoIter)>

impl<A, B, C> From<(A, B, C)> for Zip<(<A as IntoIterator>::IntoIter, <B as IntoIterator>::IntoIter, <C as IntoIterator>::IntoIter)> where
    C: IntoIterator,
    B: IntoIterator,
    A: IntoIterator, 

pub fn from(
    t: (A, B, C)
) -> Zip<(<A as IntoIterator>::IntoIter, <B as IntoIterator>::IntoIter, <C as IntoIterator>::IntoIter)>

impl<A, B, C, D> From<(A, B, C, D)> for Zip<(<A as IntoIterator>::IntoIter, <B as IntoIterator>::IntoIter, <C as IntoIterator>::IntoIter, <D as IntoIterator>::IntoIter)> where
    C: IntoIterator,
    B: IntoIterator,
    A: IntoIterator,
    D: IntoIterator, 

pub fn from(
    t: (A, B, C, D)
) -> Zip<(<A as IntoIterator>::IntoIter, <B as IntoIterator>::IntoIter, <C as IntoIterator>::IntoIter, <D as IntoIterator>::IntoIter)>

impl<A, B, C, D, E> From<(A, B, C, D, E)> for Zip<(<A as IntoIterator>::IntoIter, <B as IntoIterator>::IntoIter, <C as IntoIterator>::IntoIter, <D as IntoIterator>::IntoIter, <E as IntoIterator>::IntoIter)> where
    C: IntoIterator,
    B: IntoIterator,
    E: IntoIterator,
    A: IntoIterator,
    D: IntoIterator, 

pub fn from(
    t: (A, B, C, D, E)
) -> Zip<(<A as IntoIterator>::IntoIter, <B as IntoIterator>::IntoIter, <C as IntoIterator>::IntoIter, <D as IntoIterator>::IntoIter, <E as IntoIterator>::IntoIter)>

impl<A, B, C, D, E, F> From<(A, B, C, D, E, F)> for Zip<(<A as IntoIterator>::IntoIter, <B as IntoIterator>::IntoIter, <C as IntoIterator>::IntoIter, <D as IntoIterator>::IntoIter, <E as IntoIterator>::IntoIter, <F as IntoIterator>::IntoIter)> where
    C: IntoIterator,
    B: IntoIterator,
    E: IntoIterator,
    A: IntoIterator,
    F: IntoIterator,
    D: IntoIterator, 

pub fn from(
    t: (A, B, C, D, E, F)
) -> Zip<(<A as IntoIterator>::IntoIter, <B as IntoIterator>::IntoIter, <C as IntoIterator>::IntoIter, <D as IntoIterator>::IntoIter, <E as IntoIterator>::IntoIter, <F as IntoIterator>::IntoIter)>

impl<A, B, C, D, E, F, G> From<(A, B, C, D, E, F, G)> for Zip<(<A as IntoIterator>::IntoIter, <B as IntoIterator>::IntoIter, <C as IntoIterator>::IntoIter, <D as IntoIterator>::IntoIter, <E as IntoIterator>::IntoIter, <F as IntoIterator>::IntoIter, <G as IntoIterator>::IntoIter)> where
    C: IntoIterator,
    B: IntoIterator,
    E: IntoIterator,
    A: IntoIterator,
    F: IntoIterator,
    G: IntoIterator,
    D: IntoIterator, 

pub fn from(
    t: (A, B, C, D, E, F, G)
) -> Zip<(<A as IntoIterator>::IntoIter, <B as IntoIterator>::IntoIter, <C as IntoIterator>::IntoIter, <D as IntoIterator>::IntoIter, <E as IntoIterator>::IntoIter, <F as IntoIterator>::IntoIter, <G as IntoIterator>::IntoIter)>

impl<A, B, C, D, E, F, G, H> From<(A, B, C, D, E, F, G, H)> for Zip<(<A as IntoIterator>::IntoIter, <B as IntoIterator>::IntoIter, <C as IntoIterator>::IntoIter, <D as IntoIterator>::IntoIter, <E as IntoIterator>::IntoIter, <F as IntoIterator>::IntoIter, <G as IntoIterator>::IntoIter, <H as IntoIterator>::IntoIter)> where
    C: IntoIterator,
    B: IntoIterator,
    E: IntoIterator,
    A: IntoIterator,
    F: IntoIterator,
    G: IntoIterator,
    D: IntoIterator,
    H: IntoIterator, 

pub fn from(
    t: (A, B, C, D, E, F, G, H)
) -> Zip<(<A as IntoIterator>::IntoIter, <B as IntoIterator>::IntoIter, <C as IntoIterator>::IntoIter, <D as IntoIterator>::IntoIter, <E as IntoIterator>::IntoIter, <F as IntoIterator>::IntoIter, <G as IntoIterator>::IntoIter, <H as IntoIterator>::IntoIter)>

impl<A, B, C, D, E, F, G, H, I> From<(A, B, C, D, E, F, G, H, I)> for Zip<(<A as IntoIterator>::IntoIter, <B as IntoIterator>::IntoIter, <C as IntoIterator>::IntoIter, <D as IntoIterator>::IntoIter, <E as IntoIterator>::IntoIter, <F as IntoIterator>::IntoIter, <G as IntoIterator>::IntoIter, <H as IntoIterator>::IntoIter, <I as IntoIterator>::IntoIter)> where
    C: IntoIterator,
    B: IntoIterator,
    E: IntoIterator,
    A: IntoIterator,
    I: IntoIterator,
    F: IntoIterator,
    G: IntoIterator,
    D: IntoIterator,
    H: IntoIterator, 

pub fn from(
    t: (A, B, C, D, E, F, G, H, I)
) -> Zip<(<A as IntoIterator>::IntoIter, <B as IntoIterator>::IntoIter, <C as IntoIterator>::IntoIter, <D as IntoIterator>::IntoIter, <E as IntoIterator>::IntoIter, <F as IntoIterator>::IntoIter, <G as IntoIterator>::IntoIter, <H as IntoIterator>::IntoIter, <I as IntoIterator>::IntoIter)>

impl<A, B, C, D, E, F, G, H, I, J> From<(A, B, C, D, E, F, G, H, I, J)> for Zip<(<A as IntoIterator>::IntoIter, <B as IntoIterator>::IntoIter, <C as IntoIterator>::IntoIter, <D as IntoIterator>::IntoIter, <E as IntoIterator>::IntoIter, <F as IntoIterator>::IntoIter, <G as IntoIterator>::IntoIter, <H as IntoIterator>::IntoIter, <I as IntoIterator>::IntoIter, <J as IntoIterator>::IntoIter)> where
    C: IntoIterator,
    B: IntoIterator,
    E: IntoIterator,
    A: IntoIterator,
    I: IntoIterator,
    F: IntoIterator,
    G: IntoIterator,
    D: IntoIterator,
    H: IntoIterator,
    J: IntoIterator, 

pub fn from(
    t: (A, B, C, D, E, F, G, H, I, J)
) -> Zip<(<A as IntoIterator>::IntoIter, <B as IntoIterator>::IntoIter, <C as IntoIterator>::IntoIter, <D as IntoIterator>::IntoIter, <E as IntoIterator>::IntoIter, <F as IntoIterator>::IntoIter, <G as IntoIterator>::IntoIter, <H as IntoIterator>::IntoIter, <I as IntoIterator>::IntoIter, <J as IntoIterator>::IntoIter)>

impl<A, B, C, D, E, F, G, H, I, J, K> From<(A, B, C, D, E, F, G, H, I, J, K)> for Zip<(<A as IntoIterator>::IntoIter, <B as IntoIterator>::IntoIter, <C as IntoIterator>::IntoIter, <D as IntoIterator>::IntoIter, <E as IntoIterator>::IntoIter, <F as IntoIterator>::IntoIter, <G as IntoIterator>::IntoIter, <H as IntoIterator>::IntoIter, <I as IntoIterator>::IntoIter, <J as IntoIterator>::IntoIter, <K as IntoIterator>::IntoIter)> where
    C: IntoIterator,
    B: IntoIterator,
    E: IntoIterator,
    A: IntoIterator,
    K: IntoIterator,
    I: IntoIterator,
    F: IntoIterator,
    G: IntoIterator,
    D: IntoIterator,
    H: IntoIterator,
    J: IntoIterator, 

pub fn from(
    t: (A, B, C, D, E, F, G, H, I, J, K)
) -> Zip<(<A as IntoIterator>::IntoIter, <B as IntoIterator>::IntoIter, <C as IntoIterator>::IntoIter, <D as IntoIterator>::IntoIter, <E as IntoIterator>::IntoIter, <F as IntoIterator>::IntoIter, <G as IntoIterator>::IntoIter, <H as IntoIterator>::IntoIter, <I as IntoIterator>::IntoIter, <J as IntoIterator>::IntoIter, <K as IntoIterator>::IntoIter)>

impl<A, B, C, D, E, F, G, H, I, J, K, L> From<(A, B, C, D, E, F, G, H, I, J, K, L)> for Zip<(<A as IntoIterator>::IntoIter, <B as IntoIterator>::IntoIter, <C as IntoIterator>::IntoIter, <D as IntoIterator>::IntoIter, <E as IntoIterator>::IntoIter, <F as IntoIterator>::IntoIter, <G as IntoIterator>::IntoIter, <H as IntoIterator>::IntoIter, <I as IntoIterator>::IntoIter, <J as IntoIterator>::IntoIter, <K as IntoIterator>::IntoIter, <L as IntoIterator>::IntoIter)> where
    C: IntoIterator,
    L: IntoIterator,
    B: IntoIterator,
    E: IntoIterator,
    A: IntoIterator,
    K: IntoIterator,
    I: IntoIterator,
    F: IntoIterator,
    G: IntoIterator,
    D: IntoIterator,
    H: IntoIterator,
    J: IntoIterator, 

pub fn from(
    t: (A, B, C, D, E, F, G, H, I, J, K, L)
) -> Zip<(<A as IntoIterator>::IntoIter, <B as IntoIterator>::IntoIter, <C as IntoIterator>::IntoIter, <D as IntoIterator>::IntoIter, <E as IntoIterator>::IntoIter, <F as IntoIterator>::IntoIter, <G as IntoIterator>::IntoIter, <H as IntoIterator>::IntoIter, <I as IntoIterator>::IntoIter, <J as IntoIterator>::IntoIter, <K as IntoIterator>::IntoIter, <L as IntoIterator>::IntoIter)>

impl<D> From<D> for Context<D> where
    D: Display + Send + Sync + 'static, 

pub fn from(display: D) -> Context<D>

impl<E> From<E> for Loop<E>

pub fn from(e: E) -> Loop<E>

impl<E> From<E> for otter_api_tests::imports::anyhow::Error where
    E: Error + Send + Sync + 'static, 

pub fn from(error: E) -> Error

impl<F> From<F> for otter_api_tests::imports::failure::Error where
    F: Fail, 

pub fn from(failure: F) -> Error

impl<I, T> From<Box<IndexSlice<I, [T]>, Global>> for otter_api_tests::shapelib::IndexVec<I, T> where
    I: Idx, 

pub fn from(src: Box<IndexSlice<I, [T]>, Global>) -> IndexVec<I, T>

impl<I, T> From<Vec<T, Global>> for otter_api_tests::shapelib::IndexVec<I, T> where
    I: Idx, 

pub fn from(v: Vec<T, Global>) -> IndexVec<I, T>

impl<L, R> From<Result<R, L>> for Either<L, R>

Convert from Result to Either with Ok => Right and Err => Left.

pub fn from(r: Result<R, L>) -> Either<L, R>

impl<P> From<LoadedAcl<P>> for Acl<P> where
    P: Perm, 

pub fn from(acl: LoadedAcl<P>) -> Acl<P>

impl<P> From<Acl<P>> for LoadedAcl<P> where
    P: Perm, 

pub fn from(acl: Acl<P>) -> LoadedAcl<P>

impl<R, G, T> From<T> for ReentrantMutex<R, G, T> where
    R: RawMutex,
    G: GetThreadId, 

pub fn from(t: T) -> ReentrantMutex<R, G, T>

impl<R, T> From<T> for otter_api_tests::imports::parking_lot::lock_api::Mutex<R, T> where
    R: RawMutex, 

pub fn from(t: T) -> Mutex<R, T>

impl<R, T> From<T> for otter_api_tests::imports::parking_lot::lock_api::RwLock<R, T> where
    R: RawRwLock, 

pub fn from(t: T) -> RwLock<R, T>

impl<S, V> From<BTreeMap<S, V>> for otter_api_tests::imports::toml::Value where
    S: Into<String>,
    V: Into<Value>, 

pub fn from(val: BTreeMap<S, V>) -> Value

impl<S, V> From<HashMap<S, V, RandomState>> for otter_api_tests::imports::toml::Value where
    S: Into<String> + Hash + Eq,
    V: Into<Value>, 

pub fn from(val: HashMap<S, V, RandomState>) -> Value

impl<T> From<[T; 2]> for OldNew<T>

pub fn from(original: [T; 2]) -> OldNew<T>

impl<T> From<!> for T

Stability note: This impl does not yet exist, but we are “reserving space” to add it in the future. See rust-lang/rust#64715 for details.

pub fn from(t: !) -> T

impl<T> From<*mut T> for AtomicPtr<T>

pub fn from(p: *mut T) -> AtomicPtr<T>

impl<T> From<SendError<T>> for otter_api_tests::mpsc::TrySendError<T>

pub fn from(err: SendError<T>) -> TrySendError<T>

Converts a SendError<T> into a TrySendError<T>.

This conversion always returns a TrySendError::Disconnected containing the data in the SendError<T>.

No data is allocated on the heap.

impl<T> From<Authorisation<Global>> for Authorisation<T> where
    T: Serialize, 

pub fn from(global: Authorisation<Global>) -> Authorisation<T>

impl<T> From<Box<T, Global>> for Arc<T> where
    T: ?Sized, 

pub fn from(v: Box<T, Global>) -> Arc<T>

Move a boxed object to a new, reference-counted allocation.

Example

let unique: Box<str> = Box::from("eggplant");
let shared: Arc<str> = Arc::from(unique);
assert_eq!("eggplant", &shared[..]);

impl<T> From<Vec<T, Global>> for otter_api_tests::serde_json::Value where
    T: Into<Value>, 

pub fn from(f: Vec<T, Global>) -> Value

Convert a Vec to Value

Examples

use serde_json::Value;

let v = vec!["lorem", "ipsum", "dolor"];
let x: Value = v.into();

impl<T> From<Vec<T, Global>> for Arc<[T]>

pub fn from(v: Vec<T, Global>) -> Arc<[T]>

Allocate a reference-counted slice and move v’s items into it.

Example

let unique: Vec<i32> = vec![1, 2, 3];
let shared: Arc<[i32]> = Arc::from(unique);
assert_eq!(&[1, 2, 3], &shared[..]);

impl<T> From<Vec<T, Global>> for VecDeque<T>

pub fn from(other: Vec<T, Global>) -> VecDeque<T>

Turn a Vec<T> into a VecDeque<T>.

This avoids reallocating where possible, but the conditions for that are strict, and subject to change, and so shouldn’t be relied upon unless the Vec<T> came from From<VecDeque<T>> and hasn’t been reallocated.

impl<T> From<T> for Option<T>

pub fn from(val: T) -> Option<T>

Copies val into a new Some.

Examples

let o: Option<u8> = Option::from(67);

assert_eq!(Some(67), o);

impl<T> From<T> for Poll<T>

pub fn from(t: T) -> Poll<T>

Convert to a Ready variant.

Example

assert_eq!(Poll::from(true), Poll::Ready(true));

impl<T> From<T> for Arc<T>

pub fn from(t: T) -> Arc<T>

impl<T> From<T> for OrderedFloat<T> where
    T: Float, 

pub fn from(val: T) -> OrderedFloat<T>

impl<T> From<T> for RefCell<T>

pub fn from(t: T) -> RefCell<T>

impl<T> From<T> for otter_api_tests::imports::once_cell::sync::OnceCell<T>

pub fn from(value: T) -> OnceCell<T>

impl<T> From<T> for otter_api_tests::imports::once_cell::unsync::OnceCell<T>

pub fn from(value: T) -> OnceCell<T>

impl<T> From<T> for Cell<T>

pub fn from(t: T) -> Cell<T>

impl<T> From<T> for UnsafeCell<T>

pub fn from(t: T) -> UnsafeCell<T>

impl<T> From<T> for otter_api_tests::imports::failure::_core::lazy::OnceCell<T>

pub fn from(value: T) -> OnceCell<T>

impl<T> From<T> for T

pub fn from(t: T) -> T

impl<T> From<Unique<T>> for NonNull<T> where
    T: ?Sized, 

pub fn from(unique: Unique<T>) -> NonNull<T>

impl<T, A> From<Box<T, A>> for Pin<Box<T, A>> where
    T: ?Sized,
    A: Allocator + 'static, 

pub fn from(boxed: Box<T, A>) -> Pin<Box<T, A>>

Converts a Box<T> into a Pin<Box<T>>

This conversion does not allocate on the heap and happens in place.

impl<T, A> From<T> for Unauthorised<T, A>

pub fn from(t: T) -> Unauthorised<T, A>

impl<Tz> From<DateTime<Tz>> for SystemTime where
    Tz: TimeZone, 

pub fn from(dt: DateTime<Tz>) -> SystemTime

impl<V> From<Vec<V, Global>> for otter_api_tests::imports::toml::Value where
    V: Into<Value>, 

pub fn from(val: Vec<V, Global>) -> Value

impl<W> From<IntoInnerError<W>> for otter_api_tests::io::Error

pub fn from(iie: IntoInnerError<W>) -> Error

impl<W> From<Arc<W>> for RawWaker where
    W: 'static + Wake + Send + Sync, 

pub fn from(waker: Arc<W>) -> RawWaker

impl<W> From<Arc<W>> for Waker where
    W: 'static + Wake + Send + Sync, 

pub fn from(waker: Arc<W>) -> Waker

impl<Y, E, F> From<Thunk<Result<Y, E>, F>> for Result<Y, E> where
    E: Sync,
    F: Sync + FnOnce() -> Result<Y, E>,
    Y: Sync, 

pub fn from(thunk: Thunk<Result<Y, E>, F>) -> Result<Y, E>

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