Struct Decoder

pub struct Decoder { /* private fields */ }

A structure to decode JSON to values in rust.

Implementations

impl Decoder

pub fn new(json: Json) -> Decoder

Creates a new decoder instance for decoding the specified JSON value.

Trait Implementations

impl Decoder for Decoder

type Error = DecoderError

The error type for method results.

fn read_nil(&mut self) -> DecodeResult<()>

Read a nil value.

fn read_usize(&mut self) -> DecodeResult<usize>

Read a usize value.

fn read_u8(&mut self) -> DecodeResult<u8>

Read a u8 value.

fn read_u16(&mut self) -> DecodeResult<u16>

Read a u16 value.

fn read_u32(&mut self) -> DecodeResult<u32>

Read a u32 value.

fn read_u64(&mut self) -> DecodeResult<u64>

Read a u64 value.

fn read_isize(&mut self) -> DecodeResult<isize>

Read a isize value.

fn read_i8(&mut self) -> DecodeResult<i8>

Read a i8 value.

fn read_i16(&mut self) -> DecodeResult<i16>

Read a i16 value.

fn read_i32(&mut self) -> DecodeResult<i32>

Read a i32 value.

fn read_i64(&mut self) -> DecodeResult<i64>

Read a i64 value.

fn read_f32(&mut self) -> DecodeResult<f32>

Read a f32 value.

fn read_f64(&mut self) -> DecodeResult<f64>

Read a f64 value.

fn read_bool(&mut self) -> DecodeResult<bool>

Read a bool value.

fn read_char(&mut self) -> DecodeResult<char>

Read a char value.

fn read_str(&mut self) -> DecodeResult<String>

Read a string value.

fn read_enum<T, F>(&mut self, _name: &str, f: F) -> DecodeResult<T>

where F: FnOnce(&mut Decoder) -> DecodeResult<T>,

Read an enumeration value.

fn read_enum_variant<T, F>(&mut self, names: &[&str], f: F) -> DecodeResult<T>

where F: FnMut(&mut Decoder, usize) -> DecodeResult<T>,

Read an enumeration value.

fn read_enum_variant_arg<T, F>(&mut self, _idx: usize, f: F) -> DecodeResult<T>

where F: FnOnce(&mut Decoder) -> DecodeResult<T>,

Read an unnamed data item for an enumeration variant.

fn read_enum_struct_variant<T, F>( &mut self, names: &[&str], f: F, ) -> DecodeResult<T>

where F: FnMut(&mut Decoder, usize) -> DecodeResult<T>,

Read an enumeration value.

fn read_enum_struct_variant_field<T, F>( &mut self, _name: &str, idx: usize, f: F, ) -> DecodeResult<T>

where F: FnOnce(&mut Decoder) -> DecodeResult<T>,

Read a named data item for an enumeration variant.

fn read_struct<T, F>( &mut self, _name: &str, _len: usize, f: F, ) -> DecodeResult<T>

where F: FnOnce(&mut Decoder) -> DecodeResult<T>,

Read an struct value.

fn read_struct_field<T, F>( &mut self, name: &str, _idx: usize, f: F, ) -> DecodeResult<T>

where F: FnOnce(&mut Decoder) -> DecodeResult<T>,

Read a field for a struct value.

fn read_tuple<T, F>(&mut self, tuple_len: usize, f: F) -> DecodeResult<T>

where F: FnOnce(&mut Decoder) -> DecodeResult<T>,

Read a tuple value.

fn read_tuple_arg<T, F>(&mut self, idx: usize, f: F) -> DecodeResult<T>

where F: FnOnce(&mut Decoder) -> DecodeResult<T>,

Read a data item for a tuple.

fn read_tuple_struct<T, F>( &mut self, _name: &str, len: usize, f: F, ) -> DecodeResult<T>

where F: FnOnce(&mut Decoder) -> DecodeResult<T>,

Read a tuple struct value.

fn read_tuple_struct_arg<T, F>(&mut self, idx: usize, f: F) -> DecodeResult<T>

where F: FnOnce(&mut Decoder) -> DecodeResult<T>,

Read a data item for a tuple struct.

fn read_option<T, F>(&mut self, f: F) -> DecodeResult<T>

where F: FnMut(&mut Decoder, bool) -> DecodeResult<T>,

Read an optional value.

fn read_seq<T, F>(&mut self, f: F) -> DecodeResult<T>

where F: FnOnce(&mut Decoder, usize) -> DecodeResult<T>,

Read a sequence of values.

fn read_seq_elt<T, F>(&mut self, _idx: usize, f: F) -> DecodeResult<T>

where F: FnOnce(&mut Decoder) -> DecodeResult<T>,

Read an element in the sequence.

fn read_map<T, F>(&mut self, f: F) -> DecodeResult<T>

where F: FnOnce(&mut Decoder, usize) -> DecodeResult<T>,

Read an associative container (map).

fn read_map_elt_key<T, F>(&mut self, _idx: usize, f: F) -> DecodeResult<T>

where F: FnOnce(&mut Decoder) -> DecodeResult<T>,

Read the key for an entry in a map.

fn read_map_elt_val<T, F>(&mut self, _idx: usize, f: F) -> DecodeResult<T>

where F: FnOnce(&mut Decoder) -> DecodeResult<T>,

Read the value for an entry in a map.

fn error(&mut self, err: &str) -> DecoderError

Record a decoding error.