Trait logchop::OptionLogFormatter[−][src]

pub trait OptionLogFormatter<T> {
    fn log_format<F>(self, level: Level, f: F) -> Option<T>
    where
        F: FnOnce(&Option<T>) -> String;

    fn log_some_format<F>(self, level: Level, f: F) -> Option<T>
    where
        F: FnOnce(&T) -> String;

    fn log_none_format<F>(self, level: Level, f: F) -> Option<T>
    where
        F: FnOnce() -> String;

    fn trace_format<F>(self, f: F) -> Option<T>
    where
        F: FnOnce(&Option<T>) -> String;

    fn trace_some_format<F>(self, f: F) -> Option<T>
    where
        F: FnOnce(&T) -> String;

    fn trace_none_format<F>(self, f: F) -> Option<T>
    where
        F: FnOnce() -> String;

    fn debug_format<F>(self, f: F) -> Option<T>
    where
        F: FnOnce(&Option<T>) -> String;

    fn debug_some_format<F>(self, f: F) -> Option<T>
    where
        F: FnOnce(&T) -> String;

    fn debug_none_format<F>(self, f: F) -> Option<T>
    where
        F: FnOnce() -> String;

    fn info_format<F>(self, f: F) -> Option<T>
    where
        F: FnOnce(&Option<T>) -> String;

    fn info_some_format<F>(self, f: F) -> Option<T>
    where
        F: FnOnce(&T) -> String;

    fn info_none_format<F>(self, f: F) -> Option<T>
    where
        F: FnOnce() -> String;

    fn warn_format<F>(self, f: F) -> Option<T>
    where
        F: FnOnce(&Option<T>) -> String;

    fn warn_some_format<F>(self, f: F) -> Option<T>
    where
        F: FnOnce(&T) -> String;

    fn warn_none_format<F>(self, f: F) -> Option<T>
    where
        F: FnOnce() -> String;

    fn error_format<F>(self, f: F) -> Option<T>
    where
        F: FnOnce(&Option<T>) -> String;

    fn error_some_format<F>(self, f: F) -> Option<T>
    where
        F: FnOnce(&T) -> String;

    fn error_none_format<F>(self, f: F) -> Option<T>
    where
        F: FnOnce() -> String;
}

Augment Option types with log methods that can print abitrary representations of wrapped values. If the type being wrapped implements Debug, you may be able to use OptionLogger instead.

The callsite is responsible for defining the format strategy. The closure is only evaluated when necessary.

This trait defines methods prefixed by the log level, as well as a general one that accepts a log level parameter.

  • <log_level>_format(FnOnce) prints the return value of the closure if Some or None
  • <log_level>_format_some(FnOnce) prints the return value of the closure if Some
  • <log_level>_format_none(FnOnce) prints the return value of the closure if None

Required methods

fn log_format<F>(self, level: Level, f: F) -> Option<T> where
    F: FnOnce(&Option<T>) -> String, [src]

Output a log message of the provided severity if Some or None. The message is determined by the return value of the supplied closure.

fn log_some_format<F>(self, level: Level, f: F) -> Option<T> where
    F: FnOnce(&T) -> String, [src]

Output a log message of the provided severity if Some. The message is determined by the return value of the supplied closure.

fn log_none_format<F>(self, level: Level, f: F) -> Option<T> where
    F: FnOnce() -> String, [src]

Output a log message of the provided severity if None. The message is determined by the return value of the supplied closure.

fn trace_format<F>(self, f: F) -> Option<T> where
    F: FnOnce(&Option<T>) -> String, [src]

Output a trace log with the return value of the provided closure.

fn trace_some_format<F>(self, f: F) -> Option<T> where
    F: FnOnce(&T) -> String, [src]

Output a trace log with the return value of the provided closure if Some.

fn trace_none_format<F>(self, f: F) -> Option<T> where
    F: FnOnce() -> String, [src]

Output a trace log with the return value of the provided closure if None.

fn debug_format<F>(self, f: F) -> Option<T> where
    F: FnOnce(&Option<T>) -> String, [src]

Output a debug log with the return value of the provided closure.

fn debug_some_format<F>(self, f: F) -> Option<T> where
    F: FnOnce(&T) -> String, [src]

Output a debug log with the return value of the provided closure if Some.

fn debug_none_format<F>(self, f: F) -> Option<T> where
    F: FnOnce() -> String, [src]

Output a debug log with the return value of the provided closure if None.

fn info_format<F>(self, f: F) -> Option<T> where
    F: FnOnce(&Option<T>) -> String, [src]

Output a info log with the return value of the provided closure.

fn info_some_format<F>(self, f: F) -> Option<T> where
    F: FnOnce(&T) -> String, [src]

Output a info log with the return value of the provided closure if Some.

fn info_none_format<F>(self, f: F) -> Option<T> where
    F: FnOnce() -> String, [src]

Output a info log with the return value of the provided closure if None.

fn warn_format<F>(self, f: F) -> Option<T> where
    F: FnOnce(&Option<T>) -> String, [src]

Output a warn log with the return value of the provided closure.

fn warn_some_format<F>(self, f: F) -> Option<T> where
    F: FnOnce(&T) -> String, [src]

Output a warn log with the return value of the provided closure if Some.

fn warn_none_format<F>(self, f: F) -> Option<T> where
    F: FnOnce() -> String, [src]

Output a warn log with the return value of the provided closure if None.

fn error_format<F>(self, f: F) -> Option<T> where
    F: FnOnce(&Option<T>) -> String, [src]

Output a error log with the return value of the provided closure.

fn error_some_format<F>(self, f: F) -> Option<T> where
    F: FnOnce(&T) -> String, [src]

Output a error log with the return value of the provided closure if Some.

fn error_none_format<F>(self, f: F) -> Option<T> where
    F: FnOnce() -> String, [src]

Output a error log with the return value of the provided closure if None.

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Implementations on Foreign Types

impl<T> OptionLogFormatter<T> for Option<T>[src]

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Implementors

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