Struct JsonSerializer

pub struct JsonSerializer { /* private fields */ }

Writes JSON to a Vec<u8>. None of its methods can fail, since it doesn’t target an io::Write. You can provide your own buffer via JsonSerializer::from_vec.

When you’re done with the serializer, you can call JsonSerializer::into_inner to get the buffer back.

Implementations

impl JsonSerializer

pub fn from_vec(vec: Vec<u8>) -> Self

Uses the provided buffer as the target for serialization.

pub fn new() -> Self

Allocates a new buffer for serialization.

pub fn write_null(&mut self)

Writes the JSON null value.

pub fn write_bool(&mut self, value: bool)

Writes the JSON true or false value.

pub fn write_i64(&mut self, value: i64)

Write a number as a JSON number. Numbers bigger than 2**53 might not be parsed correctly by other implementations.

pub fn write_f64(&mut self, value: f64)

Write a floating-point number as a JSON number.

pub fn write_str(&mut self, value: &str)

Write a string, with escaping.

pub fn write_obj(&mut self) -> ObjectGuard<'_>

This writes the opening brace of an object, and gives you a guard object to write the key-value pairs. When the guard is dropped, the closing brace is written.

pub fn write_arr(&mut self) -> ArrayGuard<'_>

This writes the opening bracket of an array, and gives you a guard object to write the elements. When the guard is dropped, the closing bracket is written.

pub fn into_inner(self) -> Vec<u8>

Get back the internal buffer

pub fn as_mut_vec(&mut self) -> &mut Vec<u8>

Mutably borrow the internal buffer (as a Vec<u8> so it’s growable).

This is particularly useful when you want to use an interface like format_into that expects a dyn Writer?

Trait Implementations

impl Default for JsonSerializer

fn default() -> JsonSerializer

Returns the “default value” for a type.