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 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
Writes a null
value to the specified writer.
fn write_bool<W: ?Sized>(&mut self, writer: &mut W, value: bool) -> Result<()> where 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
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
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
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
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
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
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
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
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
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
Writes a floating point value like -31.26e+12
to the specified writer.
fn begin_string<W: ?Sized>(&mut self, writer: &mut W) -> Result<()> where 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
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
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
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
Called before every array. Writes a [
to the specified
writer.
fn end_array<W: ?Sized>(&mut self, writer: &mut W) -> Result<()> where 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
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
Called after every array value.
fn begin_object<W: ?Sized>(&mut self, writer: &mut W) -> Result<()> where 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
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
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
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
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
Called after every object value.
Implementors
impl Formatter for CompactFormatter
impl<'a> Formatter for PrettyFormatter<'a>