# serde_json::ser::CompactFormatter - Rust
API documentation for the Rust `CompactFormatter` struct in crate `serde_json`.
Keywords: rust, rustlang, rust-lang, CompactFormatter

# Struct serde_json::ser::CompactFormatter [−] [src]

    pub struct CompactFormatter;

This structure compacts a JSON value with no extra whitespace.

## Trait Implementations

### `impl Clone for CompactFormatter` [src]

#### `fn clone(&self) -> CompactFormatter` [src]

Returns a copy of the value. Read more

#### `pub fn clone_from(&mut self, source: &Self)`1.0.0 [src]

Performs copy-assignment from `source`. Read more

### `impl Debug for CompactFormatter` [src]

#### `fn fmt(&self, f: &mut Formatter<'_>) -> Result` [src]

Formats the value using the given formatter. Read more

### `impl Formatter for CompactFormatter` [src]

#### `fn write_null<W: ?Sized>(&mut self, writer: &mut W) -> Result<()> where
W: Write,` [src]

Writes a `null` value to the specified writer.

#### `fn write_bool<W: ?Sized>(&mut self, writer: &mut W, value: bool) -> Result<()> where
W: Write,` [src]

Writes a `true` or `false` value to the specified writer.

#### `fn write_i8<W: ?Sized>(&mut self, writer: &mut W, value: i8) -> Result<()> where
W: Write,` [src]

Writes an integer value like `-123` to the specified writer.

#### `fn write_i16<W: ?Sized>(&mut self, writer: &mut W, value: i16) -> Result<()> where
W: Write,` [src]

Writes an integer value like `-123` to the specified writer.

#### `fn write_i32<W: ?Sized>(&mut self, writer: &mut W, value: i32) -> Result<()> where
W: Write,` [src]

Writes an integer value like `-123` to the specified writer.

#### `fn write_i64<W: ?Sized>(&mut self, writer: &mut W, value: i64) -> Result<()> where
W: Write,` [src]

Writes an integer value like `-123` to the specified writer.

#### `fn write_u8<W: ?Sized>(&mut self, writer: &mut W, value: u8) -> Result<()> where
W: Write,` [src]

Writes an integer value like `123` to the specified writer.

#### `fn write_u16<W: ?Sized>(&mut self, writer: &mut W, value: u16) -> Result<()> where
W: Write,` [src]

Writes an integer value like `123` to the specified writer.

#### `fn write_u32<W: ?Sized>(&mut self, writer: &mut W, value: u32) -> Result<()> where
W: Write,` [src]

Writes an integer value like `123` to the specified writer.

#### `fn write_u64<W: ?Sized>(&mut self, writer: &mut W, value: u64) -> Result<()> where
W: Write,` [src]

Writes an integer value like `123` to the specified writer.

#### `fn write_f32<W: ?Sized>(&mut self, writer: &mut W, value: f32) -> Result<()> where
W: Write,` [src]

Writes a floating point value like `-31.26e+12` to the specified writer.

#### `fn write_f64<W: ?Sized>(&mut self, writer: &mut W, value: f64) -> Result<()> where
W: Write,` [src]

Writes a floating point value like `-31.26e+12` to the specified writer.

#### `fn write_number_str<W: ?Sized>(
&mut self,
writer: &mut W,
value: &str
) -> Result<()> where
W: Write,` [src]

Writes a number that has already been rendered to a string.

#### `fn begin_string<W: ?Sized>(&mut self, writer: &mut W) -> Result<()> where
W: Write,` [src]

Called before each series of `write_string_fragment` and `write_char_escape`. Writes a `"` to the specified writer. Read more

#### `fn end_string<W: ?Sized>(&mut self, writer: &mut W) -> Result<()> where
W: Write,` [src]

Called after each series of `write_string_fragment` and `write_char_escape`. Writes a `"` to the specified writer. Read more

#### `fn write_string_fragment<W: ?Sized>(
&mut self,
writer: &mut W,
fragment: &str
) -> Result<()> where
W: Write,` [src]

Writes a string fragment that doesn't need any escaping to the specified writer. Read more

#### `fn write_char_escape<W: ?Sized>(
&mut self,
writer: &mut W,
char_escape: CharEscape
) -> Result<()> where
W: Write,` [src]

Writes a character escape code to the specified writer.

#### `fn begin_array<W: ?Sized>(&mut self, writer: &mut W) -> Result<()> where
W: Write,` [src]

Called before every array. Writes a `[` to the specified writer. Read more

#### `fn end_array<W: ?Sized>(&mut self, writer: &mut W) -> Result<()> where
W: Write,` [src]

Called after every array. Writes a `]` to the specified writer. Read more

#### `fn begin_array_value<W: ?Sized>(
&mut self,
writer: &mut W,
first: bool
) -> Result<()> where
W: Write,` [src]

Called before every array value. Writes a `,` if needed to the specified writer. Read more

#### `fn end_array_value<W: ?Sized>(&mut self, _writer: &mut W) -> Result<()> where
W: Write,` [src]

Called after every array value.

#### `fn begin_object<W: ?Sized>(&mut self, writer: &mut W) -> Result<()> where
W: Write,` [src]

Called before every object. Writes a `{` to the specified writer. Read more

#### `fn end_object<W: ?Sized>(&mut self, writer: &mut W) -> Result<()> where
W: Write,` [src]

Called after every object. Writes a `}` to the specified writer. Read more

#### `fn begin_object_key<W: ?Sized>(
&mut self,
writer: &mut W,
first: bool
) -> Result<()> where
W: Write,` [src]

Called before every object key.

#### `fn end_object_key<W: ?Sized>(&mut self, _writer: &mut W) -> Result<()> where
W: Write,` [src]

Called after every object key. A `:` should be written to the specified writer by either this method or `begin_object_value`. Read more

#### `fn begin_object_value<W: ?Sized>(&mut self, writer: &mut W) -> Result<()> where
W: Write,` [src]

Called before every object value. A `:` should be written to the specified writer by either this method or `end_object_key`. Read more

#### `fn end_object_value<W: ?Sized>(&mut self, _writer: &mut W) -> Result<()> where
W: Write,` [src]

Called after every object value.

#### `fn write_raw_fragment<W: ?Sized>(
&mut self,
writer: &mut W,
fragment: &str
) -> Result<()> where
W: Write,` [src]

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

## Auto Trait Implementations

### `impl RefUnwindSafe for CompactFormatter` [src]

### `impl Send for CompactFormatter` [src]

### `impl Sync for CompactFormatter` [src]

### `impl Unpin for CompactFormatter` [src]

### `impl UnwindSafe for CompactFormatter` [src]

## Blanket Implementations

### `impl<T> Any for T where
T: 'static + ?Sized,` [src]

#### `pub fn type_id(&self) -> TypeId` [src]

Gets the `TypeId` of `self`. Read more

### `impl<T> Borrow<T> for T where
T: ?Sized,` [src]

#### `pub fn borrow(&self) -> &Tⓘ

### Notable traits for &'_ mut R

`impl<'_, R> Read for &'_ mut R where
R: Read + ?Sized, impl<'_, W> Write for &'_ mut W where
W: Write + ?Sized, impl<'_, F> Future for &'_ mut F where
F: Unpin + Future + ?Sized, type Output = <F as Future>::Output;impl<'_, I> Iterator for &'_ mut I where
I: Iterator + ?Sized, type Item = <I as Iterator>::Item;`
` [src]

Immutably borrows from an owned value. Read more

### `impl<T> BorrowMut<T> for T where
T: ?Sized,` [src]

#### `pub fn borrow_mut(&mut self) -> &mut Tⓘ

### Notable traits for &'_ mut R

`impl<'_, R> Read for &'_ mut R where
R: Read + ?Sized, impl<'_, W> Write for &'_ mut W where
W: Write + ?Sized, impl<'_, F> Future for &'_ mut F where
F: Unpin + Future + ?Sized, type Output = <F as Future>::Output;impl<'_, I> Iterator for &'_ mut I where
I: Iterator + ?Sized, type Item = <I as Iterator>::Item;`
` [src]

Mutably borrows from an owned value. Read more

### `impl<T> From<T> for T` [src]

#### `pub fn from(t: T) -> T` [src]

Performs the conversion.

### `impl<T, U> Into<U> for T where
U: From<T>,` [src]

#### `pub fn into(self) -> U` [src]

Performs the conversion.

### `impl<T> ToOwned for T where
T: Clone,` [src]

#### `type Owned = T`

The resulting type after obtaining ownership.

#### `pub fn to_owned(&self) -> T` [src]

Creates owned data from borrowed data, usually by cloning. Read more

#### `pub fn clone_into(&self, target: &mut T)` [src]

🔬 This is a nightly-only experimental API. (`toowned_clone_into`)

recently added

Uses borrowed data to replace owned data, usually by cloning. Read more

### `impl<T, U> TryFrom<U> for T where
U: Into<T>,` [src]

#### `type Error = Infallible`

The type returned in the event of a conversion error.

#### `pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>` [src]

Performs the conversion.

### `impl<T, U> TryInto<U> for T where
U: TryFrom<T>,` [src]

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

The type returned in the event of a conversion error.

#### `pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>` [src]

Performs the conversion.