Struct serde_json::ser::PrettyFormatter

[+] Show declaration

pub struct PrettyFormatter<'a> { /* fields omitted */ }

[−] Expand description

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

Methods

impl<'a> PrettyFormatter<'a>

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pub fn new() -> Self

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

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

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

Trait Implementations

impl<'a> Formatter for PrettyFormatter<'a>

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

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

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

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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,

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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,

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Called after every array value.

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

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

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

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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,

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Called before every object key.

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

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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,

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Called after every object value.

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

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Writes a null value to the specified writer.

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

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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,

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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,

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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,

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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,

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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,

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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,

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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,

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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,

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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,

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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,

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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,

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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,

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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,

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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,

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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,

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Writes a character escape code to the specified writer.

fn end_object_key<W: ?Sized>(&mut self, _writer: &mut W) -> Result<()> where     W: Write,

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

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

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

impl<'a> Default for PrettyFormatter<'a>

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fn default() -> Self

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Returns the "default value" for a type.

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

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

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Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

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Performs copy-assignment from source.

impl<'a> Debug for PrettyFormatter<'a>

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fn fmt(&self, f: &mut Formatter) -> Result

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Formats the value using the given formatter.