mirror of
https://github.com/pezkuwichain/serde.git
synced 2026-04-22 06:48:00 +00:00
Update to rust HEAD
This commit is contained in:
@@ -1994,20 +1994,6 @@ pub fn from_json<
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de::Deserializable::deserialize(&mut d)
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}
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/// A structure to decode JSON to values in rust.
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pub struct Decoder {
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stack: Vec<Json>,
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}
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impl Decoder {
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/// Creates a new decoder instance for decoding the specified JSON value.
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pub fn new(json: Json) -> Decoder {
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Decoder {
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stack: vec!(json),
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}
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}
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}
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macro_rules! expect(
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($e:expr, Null) => ({
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match $e {
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@@ -2027,257 +2013,6 @@ macro_rules! expect(
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})
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)
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/*
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impl ::Decoder<DecoderError> for Decoder {
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fn read_nil(&mut self) -> DecodeResult<()> {
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debug!("read_nil");
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try!(expect!(self.pop(), Null));
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Ok(())
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}
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fn read_u64(&mut self) -> DecodeResult<u64 > { Ok(try!(self.read_f64()) as u64) }
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fn read_u32(&mut self) -> DecodeResult<u32 > { Ok(try!(self.read_f64()) as u32) }
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fn read_u16(&mut self) -> DecodeResult<u16 > { Ok(try!(self.read_f64()) as u16) }
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fn read_u8 (&mut self) -> DecodeResult<u8 > { Ok(try!(self.read_f64()) as u8) }
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fn read_uint(&mut self) -> DecodeResult<uint> { Ok(try!(self.read_f64()) as uint) }
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fn read_i64(&mut self) -> DecodeResult<i64> { Ok(try!(self.read_f64()) as i64) }
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fn read_i32(&mut self) -> DecodeResult<i32> { Ok(try!(self.read_f64()) as i32) }
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fn read_i16(&mut self) -> DecodeResult<i16> { Ok(try!(self.read_f64()) as i16) }
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fn read_i8 (&mut self) -> DecodeResult<i8 > { Ok(try!(self.read_f64()) as i8) }
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fn read_int(&mut self) -> DecodeResult<int> { Ok(try!(self.read_f64()) as int) }
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fn read_bool(&mut self) -> DecodeResult<bool> {
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debug!("read_bool");
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Ok(try!(expect!(self.pop(), Boolean)))
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}
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fn read_f64(&mut self) -> DecodeResult<f64> {
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use std::from_str::FromStr;
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debug!("read_f64");
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match self.pop() {
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Number(f) => Ok(f),
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String(s) => {
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// re: #12967.. a type w/ numeric keys (ie HashMap<uint, V> etc)
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// is going to have a string here, as per JSON spec..
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Ok(FromStr::from_str(s.as_slice()).unwrap())
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},
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value => {
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Err(ExpectedError("Number".to_string(),
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format!("{}", value)))
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}
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}
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}
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fn read_f32(&mut self) -> DecodeResult<f32> { Ok(try!(self.read_f64()) as f32) }
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fn read_char(&mut self) -> DecodeResult<char> {
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let s = try!(self.read_str());
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{
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let mut it = s.as_slice().chars();
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match (it.next(), it.next()) {
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// exactly one character
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(Some(c), None) => return Ok(c),
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_ => ()
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}
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}
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Err(ExpectedError("single character string".to_string(),
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format!("{}", s)))
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}
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fn read_str(&mut self) -> DecodeResult<String> {
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debug!("read_str");
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Ok(try!(expect!(self.pop(), String)))
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}
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fn read_enum<T>(&mut self,
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name: &str,
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f: |&mut Decoder| -> DecodeResult<T>) -> DecodeResult<T> {
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debug!("read_enum({})", name);
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f(self)
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}
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fn read_enum_variant<T>(&mut self,
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names: &[&str],
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f: |&mut Decoder, uint| -> DecodeResult<T>)
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-> DecodeResult<T> {
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debug!("read_enum_variant(names={:?})", names);
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let name = match self.pop() {
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String(s) => s,
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Object(mut o) => {
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let n = match o.pop(&"variant".to_string()) {
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Some(String(s)) => s,
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Some(val) => {
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return Err(ExpectedError("String".to_string(),
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format!("{}", val)))
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}
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None => {
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return Err(MissingFieldError("variant".to_string()))
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}
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};
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match o.pop(&"fields".to_string()) {
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Some(List(l)) => {
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for field in l.move_iter().rev() {
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self.stack.push(field.clone());
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}
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},
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Some(val) => {
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return Err(ExpectedError("List".to_string(),
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format!("{}", val)))
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}
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None => {
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return Err(MissingFieldError("fields".to_string()))
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}
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}
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n
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}
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json => {
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return Err(ExpectedError("String or Object".to_string(),
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format!("{}", json)))
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}
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};
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let idx = match names.iter()
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.position(|n| {
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str::eq_slice(*n, name.as_slice())
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}) {
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Some(idx) => idx,
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None => return Err(UnknownVariantError(name))
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};
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f(self, idx)
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}
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fn read_enum_variant_arg<T>(&mut self, idx: uint, f: |&mut Decoder| -> DecodeResult<T>)
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-> DecodeResult<T> {
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debug!("read_enum_variant_arg(idx={})", idx);
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f(self)
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}
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fn read_enum_struct_variant<T>(&mut self,
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names: &[&str],
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f: |&mut Decoder, uint| -> DecodeResult<T>)
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-> DecodeResult<T> {
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debug!("read_enum_struct_variant(names={:?})", names);
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self.read_enum_variant(names, f)
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}
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fn read_enum_struct_variant_field<T>(&mut self,
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name: &str,
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idx: uint,
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f: |&mut Decoder| -> DecodeResult<T>)
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-> DecodeResult<T> {
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debug!("read_enum_struct_variant_field(name={}, idx={})", name, idx);
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self.read_enum_variant_arg(idx, f)
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}
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fn read_struct<T>(&mut self,
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name: &str,
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len: uint,
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f: |&mut Decoder| -> DecodeResult<T>)
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-> DecodeResult<T> {
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debug!("read_struct(name={}, len={})", name, len);
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let value = try!(f(self));
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self.pop();
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Ok(value)
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}
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fn read_struct_field<T>(&mut self,
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name: &str,
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idx: uint,
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f: |&mut Decoder| -> DecodeResult<T>)
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-> DecodeResult<T> {
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debug!("read_struct_field(name={}, idx={})", name, idx);
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let mut obj = try!(expect!(self.pop(), Object));
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let value = match obj.pop(&name.to_string()) {
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None => return Err(MissingFieldError(name.to_string())),
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Some(json) => {
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self.stack.push(json);
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try!(f(self))
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}
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};
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self.stack.push(Object(obj));
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Ok(value)
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}
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fn read_tuple<T>(&mut self, f: |&mut Decoder, uint| -> DecodeResult<T>) -> DecodeResult<T> {
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debug!("read_tuple()");
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self.read_seq(f)
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}
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fn read_tuple_arg<T>(&mut self,
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idx: uint,
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f: |&mut Decoder| -> DecodeResult<T>) -> DecodeResult<T> {
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debug!("read_tuple_arg(idx={})", idx);
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self.read_seq_elt(idx, f)
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}
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fn read_tuple_struct<T>(&mut self,
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name: &str,
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f: |&mut Decoder, uint| -> DecodeResult<T>)
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-> DecodeResult<T> {
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debug!("read_tuple_struct(name={})", name);
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self.read_tuple(f)
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}
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fn read_tuple_struct_arg<T>(&mut self,
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idx: uint,
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f: |&mut Decoder| -> DecodeResult<T>)
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-> DecodeResult<T> {
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debug!("read_tuple_struct_arg(idx={})", idx);
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self.read_tuple_arg(idx, f)
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}
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fn read_option<T>(&mut self, f: |&mut Decoder, bool| -> DecodeResult<T>) -> DecodeResult<T> {
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match self.pop() {
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Null => f(self, false),
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value => { self.stack.push(value); f(self, true) }
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}
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}
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fn read_seq<T>(&mut self, f: |&mut Decoder, uint| -> DecodeResult<T>) -> DecodeResult<T> {
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debug!("read_seq()");
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let list = try!(expect!(self.pop(), List));
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let len = list.len();
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for v in list.move_iter().rev() {
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self.stack.push(v);
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}
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f(self, len)
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}
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fn read_seq_elt<T>(&mut self,
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idx: uint,
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f: |&mut Decoder| -> DecodeResult<T>) -> DecodeResult<T> {
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debug!("read_seq_elt(idx={})", idx);
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f(self)
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}
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fn read_map<T>(&mut self, f: |&mut Decoder, uint| -> DecodeResult<T>) -> DecodeResult<T> {
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debug!("read_map()");
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let obj = try!(expect!(self.pop(), Object));
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let len = obj.len();
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for (key, value) in obj.move_iter() {
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self.stack.push(value);
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self.stack.push(String(key));
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}
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f(self, len)
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}
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fn read_map_elt_key<T>(&mut self, idx: uint, f: |&mut Decoder| -> DecodeResult<T>)
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-> DecodeResult<T> {
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debug!("read_map_elt_key(idx={})", idx);
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f(self)
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}
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fn read_map_elt_val<T>(&mut self, idx: uint, f: |&mut Decoder| -> DecodeResult<T>)
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-> DecodeResult<T> {
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debug!("read_map_elt_val(idx={})", idx);
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f(self)
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}
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}
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*/
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/// Test if two json values are less than one another
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impl PartialOrd for Json {
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fn lt(&self, other: &Json) -> bool {
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@@ -2428,10 +2163,6 @@ impl<A:ToJson,B:ToJson,C:ToJson> ToJson for (A, B, C) {
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}
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}
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impl<A:ToJson> ToJson for ~[A] {
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fn to_json(&self) -> Json { List(self.iter().map(|elt| elt.to_json()).collect()) }
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}
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impl<A:ToJson> ToJson for Vec<A> {
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fn to_json(&self) -> Json { List(self.iter().map(|elt| elt.to_json()).collect()) }
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}
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