| use super::*; |
| use crate::{ |
| field::{VisitFmt, VisitOutput}, |
| fmt::fmt_layer::{FmtContext, FormattedFields}, |
| registry::LookupSpan, |
| }; |
| |
| use std::fmt; |
| use tracing_core::{ |
| field::{self, Field}, |
| Event, Level, Subscriber, |
| }; |
| |
| #[cfg(feature = "tracing-log")] |
| use tracing_log::NormalizeEvent; |
| |
| use ansi_term::{Colour, Style}; |
| |
| /// An excessively pretty, human-readable event formatter. |
| /// |
| /// Unlike the [`Full`], [`Compact`], and [`Json`] formatters, this is a |
| /// multi-line output format. Each individual event may output multiple lines of |
| /// text. |
| /// |
| /// # Example Output |
| /// |
| /// <pre><font color="#4E9A06"><b>:;</b></font> <font color="#4E9A06">cargo</font> run --example fmt-pretty |
| /// <font color="#4E9A06"><b> Finished</b></font> dev [unoptimized + debuginfo] target(s) in 0.08s |
| /// <font color="#4E9A06"><b> Running</b></font> `target/debug/examples/fmt-pretty` |
| /// 2022-02-15T18:44:24.535324Z <font color="#4E9A06"> INFO</font> <font color="#4E9A06"><b>fmt_pretty</b></font><font color="#4E9A06">: preparing to shave yaks, </font><font color="#4E9A06"><b>number_of_yaks</b></font><font color="#4E9A06">: 3</font> |
| /// <font color="#AAAAAA"><i>at</i></font> examples/examples/fmt-pretty.rs:16 <font color="#AAAAAA"><i>on</i></font> main |
| /// |
| /// 2022-02-15T18:44:24.535403Z <font color="#4E9A06"> INFO</font> <font color="#4E9A06"><b>fmt_pretty::yak_shave</b></font><font color="#4E9A06">: shaving yaks</font> |
| /// <font color="#AAAAAA"><i>at</i></font> examples/examples/fmt/yak_shave.rs:41 <font color="#AAAAAA"><i>on</i></font> main |
| /// <font color="#AAAAAA"><i>in</i></font> fmt_pretty::yak_shave::<b>shaving_yaks</b> <font color="#AAAAAA"><i>with</i></font> <b>yaks</b>: 3 |
| /// |
| /// 2022-02-15T18:44:24.535442Z <font color="#75507B">TRACE</font> <font color="#75507B"><b>fmt_pretty::yak_shave</b></font><font color="#75507B">: hello! I'm gonna shave a yak, </font><font color="#75507B"><b>excitement</b></font><font color="#75507B">: "yay!"</font> |
| /// <font color="#AAAAAA"><i>at</i></font> examples/examples/fmt/yak_shave.rs:16 <font color="#AAAAAA"><i>on</i></font> main |
| /// <font color="#AAAAAA"><i>in</i></font> fmt_pretty::yak_shave::<b>shave</b> <font color="#AAAAAA"><i>with</i></font> <b>yak</b>: 1 |
| /// <font color="#AAAAAA"><i>in</i></font> fmt_pretty::yak_shave::<b>shaving_yaks</b> <font color="#AAAAAA"><i>with</i></font> <b>yaks</b>: 3 |
| /// |
| /// 2022-02-15T18:44:24.535469Z <font color="#75507B">TRACE</font> <font color="#75507B"><b>fmt_pretty::yak_shave</b></font><font color="#75507B">: yak shaved successfully</font> |
| /// <font color="#AAAAAA"><i>at</i></font> examples/examples/fmt/yak_shave.rs:25 <font color="#AAAAAA"><i>on</i></font> main |
| /// <font color="#AAAAAA"><i>in</i></font> fmt_pretty::yak_shave::<b>shave</b> <font color="#AAAAAA"><i>with</i></font> <b>yak</b>: 1 |
| /// <font color="#AAAAAA"><i>in</i></font> fmt_pretty::yak_shave::<b>shaving_yaks</b> <font color="#AAAAAA"><i>with</i></font> <b>yaks</b>: 3 |
| /// |
| /// 2022-02-15T18:44:24.535502Z <font color="#3465A4">DEBUG</font> <font color="#3465A4"><b>yak_events</b></font><font color="#3465A4">: </font><font color="#3465A4"><b>yak</b></font><font color="#3465A4">: 1, </font><font color="#3465A4"><b>shaved</b></font><font color="#3465A4">: true</font> |
| /// <font color="#AAAAAA"><i>at</i></font> examples/examples/fmt/yak_shave.rs:46 <font color="#AAAAAA"><i>on</i></font> main |
| /// <font color="#AAAAAA"><i>in</i></font> fmt_pretty::yak_shave::<b>shaving_yaks</b> <font color="#AAAAAA"><i>with</i></font> <b>yaks</b>: 3 |
| /// |
| /// 2022-02-15T18:44:24.535524Z <font color="#75507B">TRACE</font> <font color="#75507B"><b>fmt_pretty::yak_shave</b></font><font color="#75507B">: </font><font color="#75507B"><b>yaks_shaved</b></font><font color="#75507B">: 1</font> |
| /// <font color="#AAAAAA"><i>at</i></font> examples/examples/fmt/yak_shave.rs:55 <font color="#AAAAAA"><i>on</i></font> main |
| /// <font color="#AAAAAA"><i>in</i></font> fmt_pretty::yak_shave::<b>shaving_yaks</b> <font color="#AAAAAA"><i>with</i></font> <b>yaks</b>: 3 |
| /// |
| /// 2022-02-15T18:44:24.535551Z <font color="#75507B">TRACE</font> <font color="#75507B"><b>fmt_pretty::yak_shave</b></font><font color="#75507B">: hello! I'm gonna shave a yak, </font><font color="#75507B"><b>excitement</b></font><font color="#75507B">: "yay!"</font> |
| /// <font color="#AAAAAA"><i>at</i></font> examples/examples/fmt/yak_shave.rs:16 <font color="#AAAAAA"><i>on</i></font> main |
| /// <font color="#AAAAAA"><i>in</i></font> fmt_pretty::yak_shave::<b>shave</b> <font color="#AAAAAA"><i>with</i></font> <b>yak</b>: 2 |
| /// <font color="#AAAAAA"><i>in</i></font> fmt_pretty::yak_shave::<b>shaving_yaks</b> <font color="#AAAAAA"><i>with</i></font> <b>yaks</b>: 3 |
| /// |
| /// 2022-02-15T18:44:24.535573Z <font color="#75507B">TRACE</font> <font color="#75507B"><b>fmt_pretty::yak_shave</b></font><font color="#75507B">: yak shaved successfully</font> |
| /// <font color="#AAAAAA"><i>at</i></font> examples/examples/fmt/yak_shave.rs:25 <font color="#AAAAAA"><i>on</i></font> main |
| /// <font color="#AAAAAA"><i>in</i></font> fmt_pretty::yak_shave::<b>shave</b> <font color="#AAAAAA"><i>with</i></font> <b>yak</b>: 2 |
| /// <font color="#AAAAAA"><i>in</i></font> fmt_pretty::yak_shave::<b>shaving_yaks</b> <font color="#AAAAAA"><i>with</i></font> <b>yaks</b>: 3 |
| /// |
| /// 2022-02-15T18:44:24.535600Z <font color="#3465A4">DEBUG</font> <font color="#3465A4"><b>yak_events</b></font><font color="#3465A4">: </font><font color="#3465A4"><b>yak</b></font><font color="#3465A4">: 2, </font><font color="#3465A4"><b>shaved</b></font><font color="#3465A4">: true</font> |
| /// <font color="#AAAAAA"><i>at</i></font> examples/examples/fmt/yak_shave.rs:46 <font color="#AAAAAA"><i>on</i></font> main |
| /// <font color="#AAAAAA"><i>in</i></font> fmt_pretty::yak_shave::<b>shaving_yaks</b> <font color="#AAAAAA"><i>with</i></font> <b>yaks</b>: 3 |
| /// |
| /// 2022-02-15T18:44:24.535618Z <font color="#75507B">TRACE</font> <font color="#75507B"><b>fmt_pretty::yak_shave</b></font><font color="#75507B">: </font><font color="#75507B"><b>yaks_shaved</b></font><font color="#75507B">: 2</font> |
| /// <font color="#AAAAAA"><i>at</i></font> examples/examples/fmt/yak_shave.rs:55 <font color="#AAAAAA"><i>on</i></font> main |
| /// <font color="#AAAAAA"><i>in</i></font> fmt_pretty::yak_shave::<b>shaving_yaks</b> <font color="#AAAAAA"><i>with</i></font> <b>yaks</b>: 3 |
| /// |
| /// 2022-02-15T18:44:24.535644Z <font color="#75507B">TRACE</font> <font color="#75507B"><b>fmt_pretty::yak_shave</b></font><font color="#75507B">: hello! I'm gonna shave a yak, </font><font color="#75507B"><b>excitement</b></font><font color="#75507B">: "yay!"</font> |
| /// <font color="#AAAAAA"><i>at</i></font> examples/examples/fmt/yak_shave.rs:16 <font color="#AAAAAA"><i>on</i></font> main |
| /// <font color="#AAAAAA"><i>in</i></font> fmt_pretty::yak_shave::<b>shave</b> <font color="#AAAAAA"><i>with</i></font> <b>yak</b>: 3 |
| /// <font color="#AAAAAA"><i>in</i></font> fmt_pretty::yak_shave::<b>shaving_yaks</b> <font color="#AAAAAA"><i>with</i></font> <b>yaks</b>: 3 |
| /// |
| /// 2022-02-15T18:44:24.535670Z <font color="#C4A000"> WARN</font> <font color="#C4A000"><b>fmt_pretty::yak_shave</b></font><font color="#C4A000">: could not locate yak</font> |
| /// <font color="#AAAAAA"><i>at</i></font> examples/examples/fmt/yak_shave.rs:18 <font color="#AAAAAA"><i>on</i></font> main |
| /// <font color="#AAAAAA"><i>in</i></font> fmt_pretty::yak_shave::<b>shave</b> <font color="#AAAAAA"><i>with</i></font> <b>yak</b>: 3 |
| /// <font color="#AAAAAA"><i>in</i></font> fmt_pretty::yak_shave::<b>shaving_yaks</b> <font color="#AAAAAA"><i>with</i></font> <b>yaks</b>: 3 |
| /// |
| /// 2022-02-15T18:44:24.535698Z <font color="#3465A4">DEBUG</font> <font color="#3465A4"><b>yak_events</b></font><font color="#3465A4">: </font><font color="#3465A4"><b>yak</b></font><font color="#3465A4">: 3, </font><font color="#3465A4"><b>shaved</b></font><font color="#3465A4">: false</font> |
| /// <font color="#AAAAAA"><i>at</i></font> examples/examples/fmt/yak_shave.rs:46 <font color="#AAAAAA"><i>on</i></font> main |
| /// <font color="#AAAAAA"><i>in</i></font> fmt_pretty::yak_shave::<b>shaving_yaks</b> <font color="#AAAAAA"><i>with</i></font> <b>yaks</b>: 3 |
| /// |
| /// 2022-02-15T18:44:24.535720Z <font color="#CC0000">ERROR</font> <font color="#CC0000"><b>fmt_pretty::yak_shave</b></font><font color="#CC0000">: failed to shave yak, </font><font color="#CC0000"><b>yak</b></font><font color="#CC0000">: 3, </font><font color="#CC0000"><b>error</b></font><font color="#CC0000">: missing yak, </font><font color="#CC0000"><b>error.sources</b></font><font color="#CC0000">: [out of space, out of cash]</font> |
| /// <font color="#AAAAAA"><i>at</i></font> examples/examples/fmt/yak_shave.rs:51 <font color="#AAAAAA"><i>on</i></font> main |
| /// <font color="#AAAAAA"><i>in</i></font> fmt_pretty::yak_shave::<b>shaving_yaks</b> <font color="#AAAAAA"><i>with</i></font> <b>yaks</b>: 3 |
| /// |
| /// 2022-02-15T18:44:24.535742Z <font color="#75507B">TRACE</font> <font color="#75507B"><b>fmt_pretty::yak_shave</b></font><font color="#75507B">: </font><font color="#75507B"><b>yaks_shaved</b></font><font color="#75507B">: 2</font> |
| /// <font color="#AAAAAA"><i>at</i></font> examples/examples/fmt/yak_shave.rs:55 <font color="#AAAAAA"><i>on</i></font> main |
| /// <font color="#AAAAAA"><i>in</i></font> fmt_pretty::yak_shave::<b>shaving_yaks</b> <font color="#AAAAAA"><i>with</i></font> <b>yaks</b>: 3 |
| /// |
| /// 2022-02-15T18:44:24.535765Z <font color="#4E9A06"> INFO</font> <font color="#4E9A06"><b>fmt_pretty</b></font><font color="#4E9A06">: yak shaving completed, </font><font color="#4E9A06"><b>all_yaks_shaved</b></font><font color="#4E9A06">: false</font> |
| /// <font color="#AAAAAA"><i>at</i></font> examples/examples/fmt-pretty.rs:19 <font color="#AAAAAA"><i>on</i></font> main |
| /// </pre> |
| #[derive(Debug, Clone, Eq, PartialEq)] |
| pub struct Pretty { |
| display_location: bool, |
| } |
| |
| /// The [visitor] produced by [`Pretty`]'s [`MakeVisitor`] implementation. |
| /// |
| /// [visitor]: field::Visit |
| /// [`MakeVisitor`]: crate::field::MakeVisitor |
| #[derive(Debug)] |
| pub struct PrettyVisitor<'a> { |
| writer: Writer<'a>, |
| is_empty: bool, |
| style: Style, |
| result: fmt::Result, |
| } |
| |
| /// An excessively pretty, human-readable [`MakeVisitor`] implementation. |
| /// |
| /// [`MakeVisitor`]: crate::field::MakeVisitor |
| #[derive(Debug)] |
| pub struct PrettyFields { |
| /// A value to override the provided `Writer`'s ANSI formatting |
| /// configuration. |
| /// |
| /// If this is `Some`, we override the `Writer`'s ANSI setting. This is |
| /// necessary in order to continue supporting the deprecated |
| /// `PrettyFields::with_ansi` method. If it is `None`, we don't override the |
| /// ANSI formatting configuration (because the deprecated method was not |
| /// called). |
| // TODO: when `PrettyFields::with_ansi` is removed, we can get rid |
| // of this entirely. |
| ansi: Option<bool>, |
| } |
| |
| // === impl Pretty === |
| |
| impl Default for Pretty { |
| fn default() -> Self { |
| Self { |
| display_location: true, |
| } |
| } |
| } |
| |
| impl Pretty { |
| fn style_for(level: &Level) -> Style { |
| match *level { |
| Level::TRACE => Style::new().fg(Colour::Purple), |
| Level::DEBUG => Style::new().fg(Colour::Blue), |
| Level::INFO => Style::new().fg(Colour::Green), |
| Level::WARN => Style::new().fg(Colour::Yellow), |
| Level::ERROR => Style::new().fg(Colour::Red), |
| } |
| } |
| |
| /// Sets whether the event's source code location is displayed. |
| /// |
| /// This defaults to `true`. |
| #[deprecated( |
| since = "0.3.6", |
| note = "all formatters now support configurable source locations. Use `Format::with_source_location` instead." |
| )] |
| pub fn with_source_location(self, display_location: bool) -> Self { |
| Self { |
| display_location, |
| ..self |
| } |
| } |
| } |
| |
| impl<C, N, T> FormatEvent<C, N> for Format<Pretty, T> |
| where |
| C: Subscriber + for<'a> LookupSpan<'a>, |
| N: for<'a> FormatFields<'a> + 'static, |
| T: FormatTime, |
| { |
| fn format_event( |
| &self, |
| ctx: &FmtContext<'_, C, N>, |
| mut writer: Writer<'_>, |
| event: &Event<'_>, |
| ) -> fmt::Result { |
| #[cfg(feature = "tracing-log")] |
| let normalized_meta = event.normalized_metadata(); |
| #[cfg(feature = "tracing-log")] |
| let meta = normalized_meta.as_ref().unwrap_or_else(|| event.metadata()); |
| #[cfg(not(feature = "tracing-log"))] |
| let meta = event.metadata(); |
| write!(&mut writer, " ")?; |
| |
| // if the `Format` struct *also* has an ANSI color configuration, |
| // override the writer...the API for configuring ANSI color codes on the |
| // `Format` struct is deprecated, but we still need to honor those |
| // configurations. |
| if let Some(ansi) = self.ansi { |
| writer = writer.with_ansi(ansi); |
| } |
| |
| self.format_timestamp(&mut writer)?; |
| |
| let style = if self.display_level && writer.has_ansi_escapes() { |
| Pretty::style_for(meta.level()) |
| } else { |
| Style::new() |
| }; |
| |
| if self.display_level { |
| write!( |
| writer, |
| "{} ", |
| super::FmtLevel::new(meta.level(), writer.has_ansi_escapes()) |
| )?; |
| } |
| |
| if self.display_target { |
| let target_style = if writer.has_ansi_escapes() { |
| style.bold() |
| } else { |
| style |
| }; |
| write!( |
| writer, |
| "{}{}{}:", |
| target_style.prefix(), |
| meta.target(), |
| target_style.infix(style) |
| )?; |
| } |
| let line_number = if self.display_line_number { |
| meta.line() |
| } else { |
| None |
| }; |
| |
| // If the file name is disabled, format the line number right after the |
| // target. Otherwise, if we also display the file, it'll go on a |
| // separate line. |
| if let (Some(line_number), false, true) = ( |
| line_number, |
| self.display_filename, |
| self.format.display_location, |
| ) { |
| write!( |
| writer, |
| "{}{}{}:", |
| style.prefix(), |
| line_number, |
| style.infix(style) |
| )?; |
| } |
| |
| writer.write_char(' ')?; |
| |
| let mut v = PrettyVisitor::new(writer.by_ref(), true).with_style(style); |
| event.record(&mut v); |
| v.finish()?; |
| writer.write_char('\n')?; |
| |
| let dimmed = if writer.has_ansi_escapes() { |
| Style::new().dimmed().italic() |
| } else { |
| Style::new() |
| }; |
| let thread = self.display_thread_name || self.display_thread_id; |
| |
| if let (Some(file), true, true) = ( |
| meta.file(), |
| self.format.display_location, |
| self.display_filename, |
| ) { |
| write!(writer, " {} {}", dimmed.paint("at"), file,)?; |
| |
| if let Some(line) = line_number { |
| write!(writer, ":{}", line)?; |
| } |
| writer.write_char(if thread { ' ' } else { '\n' })?; |
| } else if thread { |
| write!(writer, " ")?; |
| }; |
| |
| if thread { |
| write!(writer, "{} ", dimmed.paint("on"))?; |
| let thread = std::thread::current(); |
| if self.display_thread_name { |
| if let Some(name) = thread.name() { |
| write!(writer, "{}", name)?; |
| if self.display_thread_id { |
| writer.write_char(' ')?; |
| } |
| } |
| } |
| if self.display_thread_id { |
| write!(writer, "{:?}", thread.id())?; |
| } |
| writer.write_char('\n')?; |
| } |
| |
| let bold = writer.bold(); |
| let span = event |
| .parent() |
| .and_then(|id| ctx.span(id)) |
| .or_else(|| ctx.lookup_current()); |
| |
| let scope = span.into_iter().flat_map(|span| span.scope()); |
| |
| for span in scope { |
| let meta = span.metadata(); |
| if self.display_target { |
| write!( |
| writer, |
| " {} {}::{}", |
| dimmed.paint("in"), |
| meta.target(), |
| bold.paint(meta.name()), |
| )?; |
| } else { |
| write!( |
| writer, |
| " {} {}", |
| dimmed.paint("in"), |
| bold.paint(meta.name()), |
| )?; |
| } |
| |
| let ext = span.extensions(); |
| let fields = &ext |
| .get::<FormattedFields<N>>() |
| .expect("Unable to find FormattedFields in extensions; this is a bug"); |
| if !fields.is_empty() { |
| write!(writer, " {} {}", dimmed.paint("with"), fields)?; |
| } |
| writer.write_char('\n')?; |
| } |
| |
| writer.write_char('\n') |
| } |
| } |
| |
| impl<'writer> FormatFields<'writer> for Pretty { |
| fn format_fields<R: RecordFields>(&self, writer: Writer<'writer>, fields: R) -> fmt::Result { |
| let mut v = PrettyVisitor::new(writer, true); |
| fields.record(&mut v); |
| v.finish() |
| } |
| |
| fn add_fields( |
| &self, |
| current: &'writer mut FormattedFields<Self>, |
| fields: &span::Record<'_>, |
| ) -> fmt::Result { |
| let empty = current.is_empty(); |
| let writer = current.as_writer(); |
| let mut v = PrettyVisitor::new(writer, empty); |
| fields.record(&mut v); |
| v.finish() |
| } |
| } |
| |
| // === impl PrettyFields === |
| |
| impl Default for PrettyFields { |
| fn default() -> Self { |
| Self::new() |
| } |
| } |
| |
| impl PrettyFields { |
| /// Returns a new default [`PrettyFields`] implementation. |
| pub fn new() -> Self { |
| // By default, don't override the `Writer`'s ANSI colors |
| // configuration. We'll only do this if the user calls the |
| // deprecated `PrettyFields::with_ansi` method. |
| Self { ansi: None } |
| } |
| |
| /// Enable ANSI encoding for formatted fields. |
| #[deprecated( |
| since = "0.3.3", |
| note = "Use `fmt::Subscriber::with_ansi` or `fmt::Layer::with_ansi` instead." |
| )] |
| pub fn with_ansi(self, ansi: bool) -> Self { |
| Self { |
| ansi: Some(ansi), |
| ..self |
| } |
| } |
| } |
| |
| impl<'a> MakeVisitor<Writer<'a>> for PrettyFields { |
| type Visitor = PrettyVisitor<'a>; |
| |
| #[inline] |
| fn make_visitor(&self, mut target: Writer<'a>) -> Self::Visitor { |
| if let Some(ansi) = self.ansi { |
| target = target.with_ansi(ansi); |
| } |
| PrettyVisitor::new(target, true) |
| } |
| } |
| |
| // === impl PrettyVisitor === |
| |
| impl<'a> PrettyVisitor<'a> { |
| /// Returns a new default visitor that formats to the provided `writer`. |
| /// |
| /// # Arguments |
| /// - `writer`: the writer to format to. |
| /// - `is_empty`: whether or not any fields have been previously written to |
| /// that writer. |
| pub fn new(writer: Writer<'a>, is_empty: bool) -> Self { |
| Self { |
| writer, |
| is_empty, |
| style: Style::default(), |
| result: Ok(()), |
| } |
| } |
| |
| pub(crate) fn with_style(self, style: Style) -> Self { |
| Self { style, ..self } |
| } |
| |
| fn write_padded(&mut self, value: &impl fmt::Debug) { |
| let padding = if self.is_empty { |
| self.is_empty = false; |
| "" |
| } else { |
| ", " |
| }; |
| self.result = write!(self.writer, "{}{:?}", padding, value); |
| } |
| |
| fn bold(&self) -> Style { |
| if self.writer.has_ansi_escapes() { |
| self.style.bold() |
| } else { |
| Style::new() |
| } |
| } |
| } |
| |
| impl<'a> field::Visit for PrettyVisitor<'a> { |
| fn record_str(&mut self, field: &Field, value: &str) { |
| if self.result.is_err() { |
| return; |
| } |
| |
| if field.name() == "message" { |
| self.record_debug(field, &format_args!("{}", value)) |
| } else { |
| self.record_debug(field, &value) |
| } |
| } |
| |
| fn record_error(&mut self, field: &Field, value: &(dyn std::error::Error + 'static)) { |
| if let Some(source) = value.source() { |
| let bold = self.bold(); |
| self.record_debug( |
| field, |
| &format_args!( |
| "{}, {}{}.sources{}: {}", |
| value, |
| bold.prefix(), |
| field, |
| bold.infix(self.style), |
| ErrorSourceList(source), |
| ), |
| ) |
| } else { |
| self.record_debug(field, &format_args!("{}", value)) |
| } |
| } |
| |
| fn record_debug(&mut self, field: &Field, value: &dyn fmt::Debug) { |
| if self.result.is_err() { |
| return; |
| } |
| let bold = self.bold(); |
| match field.name() { |
| "message" => self.write_padded(&format_args!("{}{:?}", self.style.prefix(), value,)), |
| // Skip fields that are actually log metadata that have already been handled |
| #[cfg(feature = "tracing-log")] |
| name if name.starts_with("log.") => self.result = Ok(()), |
| name if name.starts_with("r#") => self.write_padded(&format_args!( |
| "{}{}{}: {:?}", |
| bold.prefix(), |
| &name[2..], |
| bold.infix(self.style), |
| value |
| )), |
| name => self.write_padded(&format_args!( |
| "{}{}{}: {:?}", |
| bold.prefix(), |
| name, |
| bold.infix(self.style), |
| value |
| )), |
| }; |
| } |
| } |
| |
| impl<'a> VisitOutput<fmt::Result> for PrettyVisitor<'a> { |
| fn finish(mut self) -> fmt::Result { |
| write!(&mut self.writer, "{}", self.style.suffix())?; |
| self.result |
| } |
| } |
| |
| impl<'a> VisitFmt for PrettyVisitor<'a> { |
| fn writer(&mut self) -> &mut dyn fmt::Write { |
| &mut self.writer |
| } |
| } |
