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

This structure pretty prints a JSON value to make it human readable.

Implementations§

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impl<'a> PrettyFormatter<'a>

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pub fn new() -> PrettyFormatter<'a>

Construct a pretty printer formatter that defaults to using two spaces for indentation.

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pub fn with_indent(indent: &'a [u8]) -> PrettyFormatter<'a>

Construct a pretty printer formatter that uses the indent string for indentation.

Trait Implementations§

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impl<'a> Clone for PrettyFormatter<'a>

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fn clone(&self) -> PrettyFormatter<'a>

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<'a> Debug for PrettyFormatter<'a>

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

Formats the value using the given formatter. Read more
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impl<'a> Default for PrettyFormatter<'a>

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fn default() -> PrettyFormatter<'a>

Returns the “default value” for a type. Read more
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impl<'a> Formatter for PrettyFormatter<'a>

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fn begin_array<W>(&mut self, writer: &mut W) -> Result<(), Error>
where W: Write + ?Sized,

Called before every array. Writes a [ to the specified writer.
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fn end_array<W>(&mut self, writer: &mut W) -> Result<(), Error>
where W: Write + ?Sized,

Called after every array. Writes a ] to the specified writer.
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fn begin_array_value<W>( &mut self, writer: &mut W, first: bool ) -> Result<(), Error>
where W: Write + ?Sized,

Called before every array value. Writes a , if needed to the specified writer.
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fn end_array_value<W>(&mut self, _writer: &mut W) -> Result<(), Error>
where W: Write + ?Sized,

Called after every array value.
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fn begin_object<W>(&mut self, writer: &mut W) -> Result<(), Error>
where W: Write + ?Sized,

Called before every object. Writes a { to the specified writer.
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fn end_object<W>(&mut self, writer: &mut W) -> Result<(), Error>
where W: Write + ?Sized,

Called after every object. Writes a } to the specified writer.
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fn begin_object_key<W>( &mut self, writer: &mut W, first: bool ) -> Result<(), Error>
where W: Write + ?Sized,

Called before every object key.
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fn begin_object_value<W>(&mut self, writer: &mut W) -> Result<(), Error>
where W: Write + ?Sized,

Called before every object value. A : should be written to the specified writer by either this method or end_object_key.
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fn end_object_value<W>(&mut self, _writer: &mut W) -> Result<(), Error>
where W: Write + ?Sized,

Called after every object value.
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fn write_null<W>(&mut self, writer: &mut W) -> Result<(), Error>
where W: Write + ?Sized,

Writes a null value to the specified writer.
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fn write_bool<W>(&mut self, writer: &mut W, value: bool) -> Result<(), Error>
where W: Write + ?Sized,

Writes a true or false value to the specified writer.
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fn write_i8<W>(&mut self, writer: &mut W, value: i8) -> Result<(), Error>
where W: Write + ?Sized,

Writes an integer value like -123 to the specified writer.
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fn write_i16<W>(&mut self, writer: &mut W, value: i16) -> Result<(), Error>
where W: Write + ?Sized,

Writes an integer value like -123 to the specified writer.
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fn write_i32<W>(&mut self, writer: &mut W, value: i32) -> Result<(), Error>
where W: Write + ?Sized,

Writes an integer value like -123 to the specified writer.
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fn write_i64<W>(&mut self, writer: &mut W, value: i64) -> Result<(), Error>
where W: Write + ?Sized,

Writes an integer value like -123 to the specified writer.
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fn write_i128<W>(&mut self, writer: &mut W, value: i128) -> Result<(), Error>
where W: Write + ?Sized,

Writes an integer value like -123 to the specified writer.
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fn write_u8<W>(&mut self, writer: &mut W, value: u8) -> Result<(), Error>
where W: Write + ?Sized,

Writes an integer value like 123 to the specified writer.
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fn write_u16<W>(&mut self, writer: &mut W, value: u16) -> Result<(), Error>
where W: Write + ?Sized,

Writes an integer value like 123 to the specified writer.
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fn write_u32<W>(&mut self, writer: &mut W, value: u32) -> Result<(), Error>
where W: Write + ?Sized,

Writes an integer value like 123 to the specified writer.
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fn write_u64<W>(&mut self, writer: &mut W, value: u64) -> Result<(), Error>
where W: Write + ?Sized,

Writes an integer value like 123 to the specified writer.
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fn write_u128<W>(&mut self, writer: &mut W, value: u128) -> Result<(), Error>
where W: Write + ?Sized,

Writes an integer value like 123 to the specified writer.
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fn write_f32<W>(&mut self, writer: &mut W, value: f32) -> Result<(), Error>
where W: Write + ?Sized,

Writes a floating point value like -31.26e+12 to the specified writer.
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fn write_f64<W>(&mut self, writer: &mut W, value: f64) -> Result<(), Error>
where W: Write + ?Sized,

Writes a floating point value like -31.26e+12 to the specified writer.
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fn write_number_str<W>( &mut self, writer: &mut W, value: &str ) -> Result<(), Error>
where W: Write + ?Sized,

Writes a number that has already been rendered to a string.
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fn begin_string<W>(&mut self, writer: &mut W) -> Result<(), Error>
where W: Write + ?Sized,

Called before each series of write_string_fragment and write_char_escape. Writes a " to the specified writer.
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fn end_string<W>(&mut self, writer: &mut W) -> Result<(), Error>
where W: Write + ?Sized,

Called after each series of write_string_fragment and write_char_escape. Writes a " to the specified writer.
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fn write_string_fragment<W>( &mut self, writer: &mut W, fragment: &str ) -> Result<(), Error>
where W: Write + ?Sized,

Writes a string fragment that doesn’t need any escaping to the specified writer.
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fn write_char_escape<W>( &mut self, writer: &mut W, char_escape: CharEscape ) -> Result<(), Error>
where W: Write + ?Sized,

Writes a character escape code to the specified writer.
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fn write_byte_array<W>( &mut self, writer: &mut W, value: &[u8] ) -> Result<(), Error>
where W: Write + ?Sized,

Writes the representation of a byte array. Formatters can choose whether to represent bytes as a JSON array of integers (the default), or some JSON string encoding like hex or base64.
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fn end_object_key<W>(&mut self, _writer: &mut W) -> Result<(), Error>
where W: Write + ?Sized,

Called after every object key. A : should be written to the specified writer by either this method or begin_object_value.
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fn write_raw_fragment<W>( &mut self, writer: &mut W, fragment: &str ) -> Result<(), Error>
where W: Write + ?Sized,

Writes a raw JSON fragment that doesn’t need any escaping to the specified writer.

Auto Trait Implementations§

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impl<'a> RefUnwindSafe for PrettyFormatter<'a>

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impl<'a> Send for PrettyFormatter<'a>

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impl<'a> Sync for PrettyFormatter<'a>

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impl<'a> Unpin for PrettyFormatter<'a>

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impl<'a> UnwindSafe for PrettyFormatter<'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> AnyDebug for T
where T: Any + Debug,

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fn as_any_ref(&self) -> &(dyn Any + 'static)

Returns a reference to the underlying type as Any.
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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> Conv for T

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fn conv<T>(self) -> T
where Self: Into<T>,

Converts self into T using Into<T>. Read more
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impl<T> FmtForward for T

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fn fmt_binary(self) -> FmtBinary<Self>
where Self: Binary,

Causes self to use its Binary implementation when Debug-formatted.
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fn fmt_display(self) -> FmtDisplay<Self>
where Self: Display,

Causes self to use its Display implementation when Debug-formatted.
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fn fmt_lower_exp(self) -> FmtLowerExp<Self>
where Self: LowerExp,

Causes self to use its LowerExp implementation when Debug-formatted.
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fn fmt_lower_hex(self) -> FmtLowerHex<Self>
where Self: LowerHex,

Causes self to use its LowerHex implementation when Debug-formatted.
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fn fmt_octal(self) -> FmtOctal<Self>
where Self: Octal,

Causes self to use its Octal implementation when Debug-formatted.
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fn fmt_pointer(self) -> FmtPointer<Self>
where Self: Pointer,

Causes self to use its Pointer implementation when Debug-formatted.
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fn fmt_upper_exp(self) -> FmtUpperExp<Self>
where Self: UpperExp,

Causes self to use its UpperExp implementation when Debug-formatted.
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fn fmt_upper_hex(self) -> FmtUpperHex<Self>
where Self: UpperHex,

Causes self to use its UpperHex implementation when Debug-formatted.
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fn fmt_list(self) -> FmtList<Self>
where &'a Self: for<'a> IntoIterator,

Formats each item in a sequence. 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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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> Pipe for T
where T: ?Sized,

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fn pipe<R>(self, func: impl FnOnce(Self) -> R) -> R
where Self: Sized,

Pipes by value. This is generally the method you want to use. Read more
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fn pipe_ref<'a, R>(&'a self, func: impl FnOnce(&'a Self) -> R) -> R
where R: 'a,

Borrows self and passes that borrow into the pipe function. Read more
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where R: 'a,

Mutably borrows self and passes that borrow into the pipe function. Read more
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where Self: Borrow<B>, B: 'a + ?Sized, R: 'a,

Borrows self, then passes self.borrow() into the pipe function. Read more
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where Self: BorrowMut<B>, B: 'a + ?Sized, R: 'a,

Mutably borrows self, then passes self.borrow_mut() into the pipe function. Read more
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where Self: AsRef<U>, U: 'a + ?Sized, R: 'a,

Borrows self, then passes self.as_ref() into the pipe function.
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where Self: AsMut<U>, U: 'a + ?Sized, R: 'a,

Mutably borrows self, then passes self.as_mut() into the pipe function.
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where Self: Deref<Target = T>, T: 'a + ?Sized, R: 'a,

Borrows self, then passes self.deref() into the pipe function.
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where Self: DerefMut<Target = T> + Deref, T: 'a + ?Sized, R: 'a,

Mutably borrows self, then passes self.deref_mut() into the pipe function.
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type Output = T

Should always be Self
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where Type: Mappable,

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where Type: Mappable,

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where Type: Mappable,

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where Type: Mappable,

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fn tap(self, func: impl FnOnce(&Self)) -> Self

Immutable access to a value. Read more
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Mutable access to a value. Read more
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where Self: Borrow<B>, B: ?Sized,

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where Self: BorrowMut<B>, B: ?Sized,

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