Struct xpct::format::HeaderFormat

pub struct HeaderFormat<Fmt> { /* private fields */ }

A formatter that adds a header to the output of another formatter.

Examples

let formatter = HeaderFormat::new(
    SomeFailuresFormat::new(),
    "Expected at least one of these to match:",
    "Expected all of these to match:",
);

Implementations

impl<Fmt> HeaderFormat<Fmt>

pub fn new( inner: Fmt, pos_header: impl Into<String>, neg_header: impl Into<String> ) -> Self

Create a new HeaderFormat from the header string and inner formatter.

This accepts two header strings, one for the positive case and one for the negative case respectively. The first is used normally, and the second is used when the matcher is negated.

Trait Implementations

impl<Fmt: Debug> Debug for HeaderFormat<Fmt>

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

Formats the value using the given formatter.

impl<Fmt: Default> Default for HeaderFormat<Fmt>

fn default() -> HeaderFormat<Fmt>

Returns the “default value” for a type.

impl<Fmt> Format for HeaderFormat<Fmt>where Fmt: Format,

type Value = MatchFailure<<Fmt as Format>::Value, <Fmt as Format>::Value>

The value to format.

fn fmt(&self, f: &mut Formatter, value: Self::Value) -> Result<()>

Format the value.