Struct holochain_metrics::logger::LogLine

pub struct LogLine(pub String);

A metric as represented by a log line. Used to convert from a metric to log line and back.

Implementations

impl LogLine

pub fn map<__SHRINKWRAP_T, __SHRINKWRAP_F: FnMut(String) -> __SHRINKWRAP_T>(
    self,
    f: __SHRINKWRAP_F
) -> __SHRINKWRAP_T

Map a function over the wrapped value, consuming it in the process.

pub fn map_ref<__SHRINKWRAP_T, __SHRINKWRAP_F: FnMut(&String) -> __SHRINKWRAP_T>(
    &self,
    f: __SHRINKWRAP_F
) -> __SHRINKWRAP_T

Map a function over the wrapped value without consuming it.

pub fn map_mut<__SHRINKWRAP_T, __SHRINKWRAP_F>(
    &mut self,
    f: __SHRINKWRAP_F
) -> __SHRINKWRAP_T where
    __SHRINKWRAP_F: FnMut(&mut String) -> __SHRINKWRAP_T, 

Map a function over the wrapped value, potentially changing it in place.

Methods from Deref<Target = String>

pub fn as_str(&self) -> &str

Extracts a string slice containing the entire String.

Examples

Basic usage:

let s = String::from("foo");

assert_eq!("foo", s.as_str());

pub fn capacity(&self) -> usize

Returns this String's capacity, in bytes.

Examples

Basic usage:

let s = String::with_capacity(10);

assert!(s.capacity() >= 10);

pub fn as_bytes(&self) -> &[u8]

Returns a byte slice of this String's contents.

The inverse of this method is from_utf8.

Examples

Basic usage:

let s = String::from("hello");

assert_eq!(&[104, 101, 108, 108, 111], s.as_bytes());

pub fn len(&self) -> usize

Returns the length of this String, in bytes, not chars or graphemes. In other words, it may not be what a human considers the length of the string.

Examples

Basic usage:

let a = String::from("foo");
assert_eq!(a.len(), 3);

let fancy_f = String::from("ƒoo");
assert_eq!(fancy_f.len(), 4);
assert_eq!(fancy_f.chars().count(), 3);

pub fn is_empty(&self) -> bool

Returns true if this String has a length of zero, and false otherwise.

Examples

Basic usage:

let mut v = String::new();
assert!(v.is_empty());

v.push('a');
assert!(!v.is_empty());

Trait Implementations

impl AsRef<String> for LogLine

fn as_ref(&self) -> &String

Performs the conversion.

impl Borrow<String> for LogLine

fn borrow(&self) -> &String

Immutably borrows from an owned value.

impl Clone for LogLine

fn clone(&self) -> LogLine

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for LogLine

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

Formats the value using the given formatter.

impl Deref for LogLine

type Target = String

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl Display for LogLine

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

Formats the value using the given formatter.

impl<'_> From<&'_ Metric> for LogLine

fn from(metric: &Metric) -> Self

Performs the conversion.

impl From<Metric> for LogLine

fn from(metric: Metric) -> Self

Performs the conversion.

impl Into<String> for LogLine

fn into(self) -> String

Performs the conversion.

impl TryFrom<LogLine> for Metric

type Error = ParseError

The type returned in the event of a conversion error.

fn try_from(source: LogLine) -> Result<Metric, ParseError>

Performs the conversion.