Trait serde_json::ser::Formatter  [−][src]
pub trait Formatter {
    fn write_null<W: ?Sized>(&mut self, writer: &mut W) -> Result<()>
    where
        W: Write,
    { ... }
    fn write_bool<W: ?Sized>(
        &mut self, 
        writer: &mut W, 
        value: bool
    ) -> Result<()>
    where
        W: Write,
    { ... }
    fn write_i8<W: ?Sized>(&mut self, writer: &mut W, value: i8) -> Result<()>
    where
        W: Write,
    { ... }
    fn write_i16<W: ?Sized>(&mut self, writer: &mut W, value: i16) -> Result<()>
    where
        W: Write,
    { ... }
    fn write_i32<W: ?Sized>(&mut self, writer: &mut W, value: i32) -> Result<()>
    where
        W: Write,
    { ... }
    fn write_i64<W: ?Sized>(&mut self, writer: &mut W, value: i64) -> Result<()>
    where
        W: Write,
    { ... }
    fn write_u8<W: ?Sized>(&mut self, writer: &mut W, value: u8) -> Result<()>
    where
        W: Write,
    { ... }
    fn write_u16<W: ?Sized>(&mut self, writer: &mut W, value: u16) -> Result<()>
    where
        W: Write,
    { ... }
    fn write_u32<W: ?Sized>(&mut self, writer: &mut W, value: u32) -> Result<()>
    where
        W: Write,
    { ... }
    fn write_u64<W: ?Sized>(&mut self, writer: &mut W, value: u64) -> Result<()>
    where
        W: Write,
    { ... }
    fn write_f32<W: ?Sized>(&mut self, writer: &mut W, value: f32) -> Result<()>
    where
        W: Write,
    { ... }
    fn write_f64<W: ?Sized>(&mut self, writer: &mut W, value: f64) -> Result<()>
    where
        W: Write,
    { ... }
    fn write_number_str<W: ?Sized>(
        &mut self, 
        writer: &mut W, 
        value: &str
    ) -> Result<()>
    where
        W: Write,
    { ... }
    fn begin_string<W: ?Sized>(&mut self, writer: &mut W) -> Result<()>
    where
        W: Write,
    { ... }
    fn end_string<W: ?Sized>(&mut self, writer: &mut W) -> Result<()>
    where
        W: Write,
    { ... }
    fn write_string_fragment<W: ?Sized>(
        &mut self, 
        writer: &mut W, 
        fragment: &str
    ) -> Result<()>
    where
        W: Write,
    { ... }
    fn write_char_escape<W: ?Sized>(
        &mut self, 
        writer: &mut W, 
        char_escape: CharEscape
    ) -> Result<()>
    where
        W: Write,
    { ... }
    fn begin_array<W: ?Sized>(&mut self, writer: &mut W) -> Result<()>
    where
        W: Write,
    { ... }
    fn end_array<W: ?Sized>(&mut self, writer: &mut W) -> Result<()>
    where
        W: Write,
    { ... }
    fn begin_array_value<W: ?Sized>(
        &mut self, 
        writer: &mut W, 
        first: bool
    ) -> Result<()>
    where
        W: Write,
    { ... }
    fn end_array_value<W: ?Sized>(&mut self, _writer: &mut W) -> Result<()>
    where
        W: Write,
    { ... }
    fn begin_object<W: ?Sized>(&mut self, writer: &mut W) -> Result<()>
    where
        W: Write,
    { ... }
    fn end_object<W: ?Sized>(&mut self, writer: &mut W) -> Result<()>
    where
        W: Write,
    { ... }
    fn begin_object_key<W: ?Sized>(
        &mut self, 
        writer: &mut W, 
        first: bool
    ) -> Result<()>
    where
        W: Write,
    { ... }
    fn end_object_key<W: ?Sized>(&mut self, _writer: &mut W) -> Result<()>
    where
        W: Write,
    { ... }
    fn begin_object_value<W: ?Sized>(&mut self, writer: &mut W) -> Result<()>
    where
        W: Write,
    { ... }
    fn end_object_value<W: ?Sized>(&mut self, _writer: &mut W) -> Result<()>
    where
        W: Write,
    { ... }
}This trait abstracts away serializing the JSON control characters, which allows the user to optionally pretty print the JSON output.
Provided Methods
fn write_null<W: ?Sized>(&mut self, writer: &mut W) -> Result<()> where
    W: Write, 
W: Write,
Writes a null value to the specified writer.
fn write_bool<W: ?Sized>(&mut self, writer: &mut W, value: bool) -> Result<()> where
    W: Write, 
W: Write,
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, 
W: Write,
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, 
W: Write,
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, 
W: Write,
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, 
W: Write,
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, 
W: Write,
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, 
W: Write,
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, 
W: Write,
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, 
W: Write,
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, 
W: Write,
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, 
W: Write,
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, 
&mut self,
writer: &mut W,
value: &str
) -> Result<()> where
W: Write,
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, 
W: Write,
Called before each series of write_string_fragment and
write_char_escape.  Writes a " to the specified writer.
fn end_string<W: ?Sized>(&mut self, writer: &mut W) -> Result<()> where
    W: Write, 
W: Write,
Called after each series of write_string_fragment and
write_char_escape.  Writes a " to the specified writer.
fn write_string_fragment<W: ?Sized>(
    &mut self, 
    writer: &mut W, 
    fragment: &str
) -> Result<()> where
    W: Write, 
&mut self,
writer: &mut W,
fragment: &str
) -> Result<()> where
W: Write,
Writes a string fragment that doesn't need any escaping to the specified writer.
fn write_char_escape<W: ?Sized>(
    &mut self, 
    writer: &mut W, 
    char_escape: CharEscape
) -> Result<()> where
    W: Write, 
&mut self,
writer: &mut W,
char_escape: CharEscape
) -> Result<()> where
W: Write,
Writes a character escape code to the specified writer.
fn begin_array<W: ?Sized>(&mut self, writer: &mut W) -> Result<()> where
    W: Write, 
W: Write,
Called before every array.  Writes a [ to the specified
writer.
fn end_array<W: ?Sized>(&mut self, writer: &mut W) -> Result<()> where
    W: Write, 
W: Write,
Called after every array.  Writes a ] to the specified
writer.
fn begin_array_value<W: ?Sized>(
    &mut self, 
    writer: &mut W, 
    first: bool
) -> Result<()> where
    W: Write, 
&mut self,
writer: &mut W,
first: bool
) -> Result<()> where
W: Write,
Called before every array value.  Writes a , if needed to
the specified writer.
fn end_array_value<W: ?Sized>(&mut self, _writer: &mut W) -> Result<()> where
    W: Write, 
W: Write,
Called after every array value.
fn begin_object<W: ?Sized>(&mut self, writer: &mut W) -> Result<()> where
    W: Write, 
W: Write,
Called before every object.  Writes a { to the specified
writer.
fn end_object<W: ?Sized>(&mut self, writer: &mut W) -> Result<()> where
    W: Write, 
W: Write,
Called after every object.  Writes a } to the specified
writer.
fn begin_object_key<W: ?Sized>(
    &mut self, 
    writer: &mut W, 
    first: bool
) -> Result<()> where
    W: Write, 
&mut self,
writer: &mut W,
first: bool
) -> Result<()> where
W: Write,
Called before every object key.
fn end_object_key<W: ?Sized>(&mut self, _writer: &mut W) -> Result<()> where
    W: Write, 
W: Write,
Called after every object key.  A : should be written to the
specified writer by either this method or
begin_object_value.
fn begin_object_value<W: ?Sized>(&mut self, writer: &mut W) -> Result<()> where
    W: Write, 
W: Write,
Called before every object value.  A : should be written to
the specified writer by either this method or
end_object_key.
fn end_object_value<W: ?Sized>(&mut self, _writer: &mut W) -> Result<()> where
    W: Write, 
W: Write,
Called after every object value.
Implementors
impl Formatter for CompactFormatterimpl<'a> Formatter for PrettyFormatter<'a>