pub struct JsonVisitor<'a> { /* private fields */ }
Expand description

The visitor produced by JsonFields’s MakeVisitor implementation.

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impl<'a> JsonVisitor<'a>

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pub fn new(writer: &'a mut dyn Write) -> Self

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.

Trait Implementations§

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impl<'a> Debug for JsonVisitor<'a>

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

Formats the value using the given formatter. Read more
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impl<'a> Visit for JsonVisitor<'a>

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fn record_f64(&mut self, field: &Field, value: f64)

Visit a double precision floating point value.

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fn record_i64(&mut self, field: &Field, value: i64)

Visit a signed 64-bit integer value.

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fn record_u64(&mut self, field: &Field, value: u64)

Visit an unsigned 64-bit integer value.

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fn record_bool(&mut self, field: &Field, value: bool)

Visit a boolean value.

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fn record_str(&mut self, field: &Field, value: &str)

Visit a string value.

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fn record_debug(&mut self, field: &Field, value: &dyn Debug)

Visit a value implementing fmt::Debug.
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fn record_i128(&mut self, field: &Field, value: i128)

Visit a signed 128-bit integer value.
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fn record_u128(&mut self, field: &Field, value: u128)

Visit an unsigned 128-bit integer value.
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fn record_error(&mut self, field: &Field, value: &(dyn Error + 'static))

Records a type implementing Error.
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impl<'a> VisitFmt for JsonVisitor<'a>

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fn writer(&mut self) -> &mut dyn Write

Returns the formatter that this visitor writes to.
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impl<'a> VisitOutput<Result<(), Error>> for JsonVisitor<'a>

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fn finish(self) -> Result

Completes the visitor, returning any output. Read more
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fn visit<R>(self, fields: &R) -> Out
where R: RecordFields, Self: Sized,

Visit a set of fields, and return the output of finishing the visitor once the fields have been visited.

Auto Trait Implementations§

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impl<'a> !RefUnwindSafe for JsonVisitor<'a>

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impl<'a> !Send for JsonVisitor<'a>

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impl<'a> !Sync for JsonVisitor<'a>

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impl<'a> Unpin for JsonVisitor<'a>

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impl<'a> !UnwindSafe for JsonVisitor<'a>

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more