Struct noodles::vcf::record::QualityScore [−][src]
pub struct QualityScore(_);
Expand description
A VCF record quality score.
Methods from Deref<Target = Option<f32>>
🔬 This is a nightly-only experimental API. (option_result_contains
)
option_result_contains
)Returns true
if the option is a Some
value containing the given value.
Examples
#![feature(option_result_contains)]
let x: Option<u32> = Some(2);
assert_eq!(x.contains(&2), true);
let x: Option<u32> = Some(3);
assert_eq!(x.contains(&2), false);
let x: Option<u32> = None;
assert_eq!(x.contains(&2), false);
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 text: Option<String> = Some("Hello, world!".to_string());
// First, cast `Option<String>` to `Option<&String>` with `as_ref`,
// then consume *that* with `map`, leaving `text` on the stack.
let text_length: Option<usize> = text.as_ref().map(|s| s.len());
println!("still can print text: {:?}", text);
Converts from Option<T>
(or &Option<T>
) to Option<&T::Target>
.
Leaves the original Option in-place, creating a new one with a reference
to the original one, additionally coercing the contents via Deref
.
Examples
let x: Option<String> = Some("hey".to_owned());
assert_eq!(x.as_deref(), Some("hey"));
let x: Option<String> = None;
assert_eq!(x.as_deref(), None);
Trait Implementations
Returns the “default value” for a type. Read more
type Err = ParseError
type Err = ParseError
The associated error which can be returned from parsing.
Parses a string s
to return a value of this type. Read more
This method tests for self
and other
values to be equal, and is used
by ==
. Read more
This method tests for !=
.
type Error = TryFromFloatError
type Error = TryFromFloatError
The type returned in the event of a conversion error.
Performs the conversion.
Auto Trait Implementations
impl RefUnwindSafe for QualityScore
impl Send for QualityScore
impl Sync for QualityScore
impl Unpin for QualityScore
impl UnwindSafe for QualityScore
Blanket Implementations
Mutably borrows from an owned value. Read more