Struct fuel_crypto::Signature
source · pub struct Signature(/* private fields */);
Expand description
Compact-form Secp256k1 signature.
Implementations§
source§impl Signature
impl Signature
sourcepub fn from_bytes(bytes: [u8; 64]) -> Self
pub fn from_bytes(bytes: [u8; 64]) -> Self
Construct a Signature
directly from its bytes.
This constructor expects the given bytes to be a valid signature. No signing is performed.
sourcepub fn from_bytes_ref(bytes: &[u8; 64]) -> &Self
pub fn from_bytes_ref(bytes: &[u8; 64]) -> &Self
Construct a Signature
reference directly from a reference to its bytes.
This constructor expects the given bytes to be a valid signature. No signing is performed.
sourcepub fn from_bytes_unchecked(bytes: [u8; 64]) -> Self
👎Deprecated: Use Signature::from_bytes
instead
pub fn from_bytes_unchecked(bytes: [u8; 64]) -> Self
Signature::from_bytes
insteadKept temporarily for backwards compatibility.
Methods from Deref<Target = [u8; 64]>§
1.57.0 · sourcepub fn as_slice(&self) -> &[T]
pub fn as_slice(&self) -> &[T]
Returns a slice containing the entire array. Equivalent to &s[..]
.
sourcepub fn each_ref(&self) -> [&T; N]
🔬This is a nightly-only experimental API. (array_methods
)
pub fn each_ref(&self) -> [&T; N]
array_methods
)Borrows each element and returns an array of references with the same
size as self
.
Example
#![feature(array_methods)]
let floats = [3.1, 2.7, -1.0];
let float_refs: [&f64; 3] = floats.each_ref();
assert_eq!(float_refs, [&3.1, &2.7, &-1.0]);
This method is particularly useful if combined with other methods, like
map
. This way, you can avoid moving the original
array if its elements are not Copy
.
#![feature(array_methods)]
let strings = ["Ferris".to_string(), "♥".to_string(), "Rust".to_string()];
let is_ascii = strings.each_ref().map(|s| s.is_ascii());
assert_eq!(is_ascii, [true, false, true]);
// We can still access the original array: it has not been moved.
assert_eq!(strings.len(), 3);
sourcepub fn split_array_ref<const M: usize>(&self) -> (&[T; M], &[T])
🔬This is a nightly-only experimental API. (split_array
)
pub fn split_array_ref<const M: usize>(&self) -> (&[T; M], &[T])
split_array
)Divides one array reference into two at an index.
The first will contain all indices from [0, M)
(excluding
the index M
itself) and the second will contain all
indices from [M, N)
(excluding the index N
itself).
Panics
Panics if M > N
.
Examples
#![feature(split_array)]
let v = [1, 2, 3, 4, 5, 6];
{
let (left, right) = v.split_array_ref::<0>();
assert_eq!(left, &[]);
assert_eq!(right, &[1, 2, 3, 4, 5, 6]);
}
{
let (left, right) = v.split_array_ref::<2>();
assert_eq!(left, &[1, 2]);
assert_eq!(right, &[3, 4, 5, 6]);
}
{
let (left, right) = v.split_array_ref::<6>();
assert_eq!(left, &[1, 2, 3, 4, 5, 6]);
assert_eq!(right, &[]);
}
sourcepub fn rsplit_array_ref<const M: usize>(&self) -> (&[T], &[T; M])
🔬This is a nightly-only experimental API. (split_array
)
pub fn rsplit_array_ref<const M: usize>(&self) -> (&[T], &[T; M])
split_array
)Divides one array reference into two at an index from the end.
The first will contain all indices from [0, N - M)
(excluding
the index N - M
itself) and the second will contain all
indices from [N - M, N)
(excluding the index N
itself).
Panics
Panics if M > N
.
Examples
#![feature(split_array)]
let v = [1, 2, 3, 4, 5, 6];
{
let (left, right) = v.rsplit_array_ref::<0>();
assert_eq!(left, &[1, 2, 3, 4, 5, 6]);
assert_eq!(right, &[]);
}
{
let (left, right) = v.rsplit_array_ref::<2>();
assert_eq!(left, &[1, 2, 3, 4]);
assert_eq!(right, &[5, 6]);
}
{
let (left, right) = v.rsplit_array_ref::<6>();
assert_eq!(left, &[]);
assert_eq!(right, &[1, 2, 3, 4, 5, 6]);
}
sourcepub fn as_ascii(&self) -> Option<&[AsciiChar; N]>
🔬This is a nightly-only experimental API. (ascii_char
)
pub fn as_ascii(&self) -> Option<&[AsciiChar; N]>
ascii_char
)Converts this array of bytes into a array of ASCII characters,
or returns None
if any of the characters is non-ASCII.
Examples
#![feature(ascii_char)]
#![feature(const_option)]
const HEX_DIGITS: [std::ascii::Char; 16] =
*b"0123456789abcdef".as_ascii().unwrap();
assert_eq!(HEX_DIGITS[1].as_str(), "1");
assert_eq!(HEX_DIGITS[10].as_str(), "a");
sourcepub unsafe fn as_ascii_unchecked(&self) -> &[AsciiChar; N]
🔬This is a nightly-only experimental API. (ascii_char
)
pub unsafe fn as_ascii_unchecked(&self) -> &[AsciiChar; N]
ascii_char
)Converts this array of bytes into a array of ASCII characters, without checking whether they’re valid.
Safety
Every byte in the array must be in 0..=127
, or else this is UB.
Trait Implementations§
source§impl<'de> Deserialize<'de> for Signature
impl<'de> Deserialize<'de> for Signature
source§fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>where
__D: Deserializer<'de>,
fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>where __D: Deserializer<'de>,
source§impl Ord for Signature
impl Ord for Signature
source§impl PartialEq for Signature
impl PartialEq for Signature
source§impl PartialOrd for Signature
impl PartialOrd for Signature
1.0.0 · source§fn le(&self, other: &Rhs) -> bool
fn le(&self, other: &Rhs) -> bool
self
and other
) and is used by the <=
operator. Read moreimpl Copy for Signature
impl Eq for Signature
impl StructuralEq for Signature
impl StructuralPartialEq for Signature
Auto Trait Implementations§
impl RefUnwindSafe for Signature
impl Send for Signature
impl Sync for Signature
impl Unpin for Signature
impl UnwindSafe for Signature
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