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-rw-r--r--third_party/rust/ron/src/ser/mod.rs996
1 files changed, 996 insertions, 0 deletions
diff --git a/third_party/rust/ron/src/ser/mod.rs b/third_party/rust/ron/src/ser/mod.rs
new file mode 100644
index 0000000000..f723d15e09
--- /dev/null
+++ b/third_party/rust/ron/src/ser/mod.rs
@@ -0,0 +1,996 @@
+use serde::{ser, Deserialize, Serialize};
+use std::io;
+
+use crate::{
+ error::{Error, Result},
+ extensions::Extensions,
+ options::Options,
+ parse::{is_ident_first_char, is_ident_other_char, LargeSInt, LargeUInt},
+};
+
+#[cfg(test)]
+mod tests;
+mod value;
+
+/// Serializes `value` into `writer`
+pub fn to_writer<W, T>(writer: W, value: &T) -> Result<()>
+where
+ W: io::Write,
+ T: ?Sized + Serialize,
+{
+ Options::default().to_writer(writer, value)
+}
+
+/// Serializes `value` into `writer` in a pretty way.
+pub fn to_writer_pretty<W, T>(writer: W, value: &T, config: PrettyConfig) -> Result<()>
+where
+ W: io::Write,
+ T: ?Sized + Serialize,
+{
+ Options::default().to_writer_pretty(writer, value, config)
+}
+
+/// Serializes `value` and returns it as string.
+///
+/// This function does not generate any newlines or nice formatting;
+/// if you want that, you can use `to_string_pretty` instead.
+pub fn to_string<T>(value: &T) -> Result<String>
+where
+ T: ?Sized + Serialize,
+{
+ Options::default().to_string(value)
+}
+
+/// Serializes `value` in the recommended RON layout in a pretty way.
+pub fn to_string_pretty<T>(value: &T, config: PrettyConfig) -> Result<String>
+where
+ T: ?Sized + Serialize,
+{
+ Options::default().to_string_pretty(value, config)
+}
+
+/// Pretty serializer state
+struct Pretty {
+ indent: usize,
+ sequence_index: Vec<usize>,
+}
+
+/// Pretty serializer configuration.
+///
+/// # Examples
+///
+/// ```
+/// use ron::ser::PrettyConfig;
+///
+/// let my_config = PrettyConfig::new()
+/// .depth_limit(4)
+/// // definitely superior (okay, just joking)
+/// .indentor("\t".to_owned());
+/// ```
+#[derive(Clone, Debug, Serialize, Deserialize)]
+#[serde(default)]
+#[non_exhaustive]
+pub struct PrettyConfig {
+ /// Limit the pretty-ness up to the given depth.
+ pub depth_limit: usize,
+ /// New line string
+ pub new_line: String,
+ /// Indentation string
+ pub indentor: String,
+ /// Separator string
+ pub separator: String,
+ // Whether to emit struct names
+ pub struct_names: bool,
+ /// Separate tuple members with indentation
+ pub separate_tuple_members: bool,
+ /// Enumerate array items in comments
+ pub enumerate_arrays: bool,
+ /// Enable extensions. Only configures 'implicit_some',
+ /// 'unwrap_newtypes', and 'unwrap_variant_newtypes' for now.
+ pub extensions: Extensions,
+ /// Enable compact arrays
+ pub compact_arrays: bool,
+}
+
+impl PrettyConfig {
+ /// Creates a default `PrettyConfig`.
+ pub fn new() -> Self {
+ Default::default()
+ }
+
+ /// Limits the pretty-formatting based on the number of indentations.
+ /// I.e., with a depth limit of 5, starting with an element of depth
+ /// (indentation level) 6, everything will be put into the same line,
+ /// without pretty formatting.
+ ///
+ /// Default: [std::usize::MAX]
+ pub fn depth_limit(mut self, depth_limit: usize) -> Self {
+ self.depth_limit = depth_limit;
+
+ self
+ }
+
+ /// Configures the newlines used for serialization.
+ ///
+ /// Default: `\r\n` on Windows, `\n` otherwise
+ pub fn new_line(mut self, new_line: String) -> Self {
+ self.new_line = new_line;
+
+ self
+ }
+
+ /// Configures the string sequence used for indentation.
+ ///
+ /// Default: 4 spaces
+ pub fn indentor(mut self, indentor: String) -> Self {
+ self.indentor = indentor;
+
+ self
+ }
+
+ /// Configures the string sequence used to separate items inline.
+ ///
+ /// Default: 1 space
+ pub fn separator(mut self, separator: String) -> Self {
+ self.separator = separator;
+
+ self
+ }
+
+ /// Configures whether to emit struct names.
+ ///
+ /// Default: `false`
+ pub fn struct_names(mut self, struct_names: bool) -> Self {
+ self.struct_names = struct_names;
+
+ self
+ }
+
+ /// Configures whether tuples are single- or multi-line.
+ /// If set to `true`, tuples will have their fields indented and in new
+ /// lines. If set to `false`, tuples will be serialized without any
+ /// newlines or indentations.
+ ///
+ /// Default: `false`
+ pub fn separate_tuple_members(mut self, separate_tuple_members: bool) -> Self {
+ self.separate_tuple_members = separate_tuple_members;
+
+ self
+ }
+
+ /// Configures whether a comment shall be added to every array element,
+ /// indicating the index.
+ ///
+ /// Default: `false`
+ pub fn enumerate_arrays(mut self, enumerate_arrays: bool) -> Self {
+ self.enumerate_arrays = enumerate_arrays;
+
+ self
+ }
+
+ /// Configures whether every array should be a single line (true) or a multi line one (false)
+ /// When false, `["a","b"]` (as well as any array) will serialize to
+ /// `
+ /// [
+ /// "a",
+ /// "b",
+ /// ]
+ /// `
+ /// When true, `["a","b"]` (as well as any array) will serialize to `["a","b"]`
+ ///
+ /// Default: `false`
+ pub fn compact_arrays(mut self, compact_arrays: bool) -> Self {
+ self.compact_arrays = compact_arrays;
+
+ self
+ }
+
+ /// Configures extensions
+ ///
+ /// Default: Extensions::empty()
+ pub fn extensions(mut self, extensions: Extensions) -> Self {
+ self.extensions = extensions;
+
+ self
+ }
+}
+
+impl Default for PrettyConfig {
+ fn default() -> Self {
+ PrettyConfig {
+ depth_limit: !0,
+ new_line: if cfg!(not(target_os = "windows")) {
+ String::from("\n")
+ } else {
+ String::from("\r\n")
+ },
+ indentor: String::from(" "),
+ separator: String::from(" "),
+ struct_names: false,
+ separate_tuple_members: false,
+ enumerate_arrays: false,
+ extensions: Extensions::empty(),
+ compact_arrays: false,
+ }
+ }
+}
+
+/// The RON serializer.
+///
+/// You can just use `to_string` for deserializing a value.
+/// If you want it pretty-printed, take a look at the `pretty` module.
+pub struct Serializer<W: io::Write> {
+ output: W,
+ pretty: Option<(PrettyConfig, Pretty)>,
+ default_extensions: Extensions,
+ is_empty: Option<bool>,
+ newtype_variant: bool,
+}
+
+impl<W: io::Write> Serializer<W> {
+ /// Creates a new `Serializer`.
+ ///
+ /// Most of the time you can just use `to_string` or `to_string_pretty`.
+ pub fn new(writer: W, config: Option<PrettyConfig>) -> Result<Self> {
+ Self::with_options(writer, config, Options::default())
+ }
+
+ /// Creates a new `Serializer`.
+ ///
+ /// Most of the time you can just use `to_string` or `to_string_pretty`.
+ pub fn with_options(
+ mut writer: W,
+ config: Option<PrettyConfig>,
+ options: Options,
+ ) -> Result<Self> {
+ if let Some(conf) = &config {
+ let non_default_extensions = !options.default_extensions;
+
+ if (non_default_extensions & conf.extensions).contains(Extensions::IMPLICIT_SOME) {
+ writer.write_all(b"#![enable(implicit_some)]")?;
+ writer.write_all(conf.new_line.as_bytes())?;
+ };
+ if (non_default_extensions & conf.extensions).contains(Extensions::UNWRAP_NEWTYPES) {
+ writer.write_all(b"#![enable(unwrap_newtypes)]")?;
+ writer.write_all(conf.new_line.as_bytes())?;
+ };
+ if (non_default_extensions & conf.extensions)
+ .contains(Extensions::UNWRAP_VARIANT_NEWTYPES)
+ {
+ writer.write_all(b"#![enable(unwrap_variant_newtypes)]")?;
+ writer.write_all(conf.new_line.as_bytes())?;
+ };
+ };
+ Ok(Serializer {
+ output: writer,
+ pretty: config.map(|conf| {
+ (
+ conf,
+ Pretty {
+ indent: 0,
+ sequence_index: Vec::new(),
+ },
+ )
+ }),
+ default_extensions: options.default_extensions,
+ is_empty: None,
+ newtype_variant: false,
+ })
+ }
+
+ fn separate_tuple_members(&self) -> bool {
+ self.pretty
+ .as_ref()
+ .map_or(false, |&(ref config, _)| config.separate_tuple_members)
+ }
+
+ fn compact_arrays(&self) -> bool {
+ self.pretty
+ .as_ref()
+ .map_or(false, |&(ref config, _)| config.compact_arrays)
+ }
+
+ fn extensions(&self) -> Extensions {
+ self.default_extensions
+ | self
+ .pretty
+ .as_ref()
+ .map_or(Extensions::empty(), |&(ref config, _)| config.extensions)
+ }
+
+ fn start_indent(&mut self) -> Result<()> {
+ if let Some((ref config, ref mut pretty)) = self.pretty {
+ pretty.indent += 1;
+ if pretty.indent <= config.depth_limit {
+ let is_empty = self.is_empty.unwrap_or(false);
+
+ if !is_empty {
+ self.output.write_all(config.new_line.as_bytes())?;
+ }
+ }
+ }
+ Ok(())
+ }
+
+ fn indent(&mut self) -> io::Result<()> {
+ if let Some((ref config, ref pretty)) = self.pretty {
+ if pretty.indent <= config.depth_limit {
+ for _ in 0..pretty.indent {
+ self.output.write_all(config.indentor.as_bytes())?;
+ }
+ }
+ }
+ Ok(())
+ }
+
+ fn end_indent(&mut self) -> io::Result<()> {
+ if let Some((ref config, ref mut pretty)) = self.pretty {
+ if pretty.indent <= config.depth_limit {
+ let is_empty = self.is_empty.unwrap_or(false);
+
+ if !is_empty {
+ for _ in 1..pretty.indent {
+ self.output.write_all(config.indentor.as_bytes())?;
+ }
+ }
+ }
+ pretty.indent -= 1;
+
+ self.is_empty = None;
+ }
+ Ok(())
+ }
+
+ fn serialize_escaped_str(&mut self, value: &str) -> io::Result<()> {
+ self.output.write_all(b"\"")?;
+ let mut scalar = [0u8; 4];
+ for c in value.chars().flat_map(|c| c.escape_debug()) {
+ self.output
+ .write_all(c.encode_utf8(&mut scalar).as_bytes())?;
+ }
+ self.output.write_all(b"\"")?;
+ Ok(())
+ }
+
+ fn serialize_sint(&mut self, value: impl Into<LargeSInt>) -> Result<()> {
+ // TODO optimize
+ write!(self.output, "{}", value.into())?;
+
+ Ok(())
+ }
+
+ fn serialize_uint(&mut self, value: impl Into<LargeUInt>) -> Result<()> {
+ // TODO optimize
+ write!(self.output, "{}", value.into())?;
+
+ Ok(())
+ }
+
+ fn write_identifier(&mut self, name: &str) -> io::Result<()> {
+ let mut bytes = name.as_bytes().iter().cloned();
+ if !bytes.next().map_or(false, is_ident_first_char) || !bytes.all(is_ident_other_char) {
+ self.output.write_all(b"r#")?;
+ }
+ self.output.write_all(name.as_bytes())?;
+ Ok(())
+ }
+
+ fn struct_names(&self) -> bool {
+ self.pretty
+ .as_ref()
+ .map(|(pc, _)| pc.struct_names)
+ .unwrap_or(false)
+ }
+}
+
+impl<'a, W: io::Write> ser::Serializer for &'a mut Serializer<W> {
+ type Error = Error;
+ type Ok = ();
+ type SerializeMap = Compound<'a, W>;
+ type SerializeSeq = Compound<'a, W>;
+ type SerializeStruct = Compound<'a, W>;
+ type SerializeStructVariant = Compound<'a, W>;
+ type SerializeTuple = Compound<'a, W>;
+ type SerializeTupleStruct = Compound<'a, W>;
+ type SerializeTupleVariant = Compound<'a, W>;
+
+ fn serialize_bool(self, v: bool) -> Result<()> {
+ self.output.write_all(if v { b"true" } else { b"false" })?;
+ Ok(())
+ }
+
+ fn serialize_i8(self, v: i8) -> Result<()> {
+ self.serialize_sint(v)
+ }
+
+ fn serialize_i16(self, v: i16) -> Result<()> {
+ self.serialize_sint(v)
+ }
+
+ fn serialize_i32(self, v: i32) -> Result<()> {
+ self.serialize_sint(v)
+ }
+
+ fn serialize_i64(self, v: i64) -> Result<()> {
+ self.serialize_sint(v)
+ }
+
+ #[cfg(feature = "integer128")]
+ fn serialize_i128(self, v: i128) -> Result<()> {
+ self.serialize_sint(v)
+ }
+
+ fn serialize_u8(self, v: u8) -> Result<()> {
+ self.serialize_uint(v)
+ }
+
+ fn serialize_u16(self, v: u16) -> Result<()> {
+ self.serialize_uint(v)
+ }
+
+ fn serialize_u32(self, v: u32) -> Result<()> {
+ self.serialize_uint(v)
+ }
+
+ fn serialize_u64(self, v: u64) -> Result<()> {
+ self.serialize_uint(v)
+ }
+
+ #[cfg(feature = "integer128")]
+ fn serialize_u128(self, v: u128) -> Result<()> {
+ self.serialize_uint(v)
+ }
+
+ fn serialize_f32(self, v: f32) -> Result<()> {
+ write!(self.output, "{}", v)?;
+ if v.fract() == 0.0 {
+ write!(self.output, ".0")?;
+ }
+ Ok(())
+ }
+
+ fn serialize_f64(self, v: f64) -> Result<()> {
+ write!(self.output, "{}", v)?;
+ if v.fract() == 0.0 {
+ write!(self.output, ".0")?;
+ }
+ Ok(())
+ }
+
+ fn serialize_char(self, v: char) -> Result<()> {
+ self.output.write_all(b"'")?;
+ if v == '\\' || v == '\'' {
+ self.output.write_all(b"\\")?;
+ }
+ write!(self.output, "{}", v)?;
+ self.output.write_all(b"'")?;
+ Ok(())
+ }
+
+ fn serialize_str(self, v: &str) -> Result<()> {
+ self.serialize_escaped_str(v)?;
+
+ Ok(())
+ }
+
+ fn serialize_bytes(self, v: &[u8]) -> Result<()> {
+ self.serialize_str(base64::encode(v).as_str())
+ }
+
+ fn serialize_none(self) -> Result<()> {
+ self.output.write_all(b"None")?;
+
+ Ok(())
+ }
+
+ fn serialize_some<T>(self, value: &T) -> Result<()>
+ where
+ T: ?Sized + Serialize,
+ {
+ let implicit_some = self.extensions().contains(Extensions::IMPLICIT_SOME);
+ if !implicit_some {
+ self.output.write_all(b"Some(")?;
+ }
+ value.serialize(&mut *self)?;
+ if !implicit_some {
+ self.output.write_all(b")")?;
+ }
+
+ Ok(())
+ }
+
+ fn serialize_unit(self) -> Result<()> {
+ if !self.newtype_variant {
+ self.output.write_all(b"()")?;
+ }
+
+ self.newtype_variant = false;
+
+ Ok(())
+ }
+
+ fn serialize_unit_struct(self, name: &'static str) -> Result<()> {
+ if self.struct_names() && !self.newtype_variant {
+ self.write_identifier(name)?;
+
+ Ok(())
+ } else {
+ self.serialize_unit()
+ }
+ }
+
+ fn serialize_unit_variant(self, _: &'static str, _: u32, variant: &'static str) -> Result<()> {
+ self.write_identifier(variant)?;
+
+ Ok(())
+ }
+
+ fn serialize_newtype_struct<T>(self, name: &'static str, value: &T) -> Result<()>
+ where
+ T: ?Sized + Serialize,
+ {
+ if self.extensions().contains(Extensions::UNWRAP_NEWTYPES) || self.newtype_variant {
+ self.newtype_variant = false;
+
+ return value.serialize(&mut *self);
+ }
+
+ if self.struct_names() {
+ self.write_identifier(name)?;
+ }
+
+ self.output.write_all(b"(")?;
+ value.serialize(&mut *self)?;
+ self.output.write_all(b")")?;
+ Ok(())
+ }
+
+ fn serialize_newtype_variant<T>(
+ self,
+ _: &'static str,
+ _: u32,
+ variant: &'static str,
+ value: &T,
+ ) -> Result<()>
+ where
+ T: ?Sized + Serialize,
+ {
+ self.write_identifier(variant)?;
+ self.output.write_all(b"(")?;
+
+ self.newtype_variant = self
+ .extensions()
+ .contains(Extensions::UNWRAP_VARIANT_NEWTYPES);
+
+ value.serialize(&mut *self)?;
+
+ self.newtype_variant = false;
+
+ self.output.write_all(b")")?;
+ Ok(())
+ }
+
+ fn serialize_seq(self, len: Option<usize>) -> Result<Self::SerializeSeq> {
+ self.newtype_variant = false;
+
+ self.output.write_all(b"[")?;
+
+ if let Some(len) = len {
+ self.is_empty = Some(len == 0);
+ }
+
+ if !self.compact_arrays() {
+ self.start_indent()?;
+ }
+
+ if let Some((_, ref mut pretty)) = self.pretty {
+ pretty.sequence_index.push(0);
+ }
+
+ Ok(Compound {
+ ser: self,
+ state: State::First,
+ newtype_variant: false,
+ })
+ }
+
+ fn serialize_tuple(self, len: usize) -> Result<Self::SerializeTuple> {
+ let old_newtype_variant = self.newtype_variant;
+ self.newtype_variant = false;
+
+ if !old_newtype_variant {
+ self.output.write_all(b"(")?;
+ }
+
+ if self.separate_tuple_members() {
+ self.is_empty = Some(len == 0);
+
+ self.start_indent()?;
+ }
+
+ Ok(Compound {
+ ser: self,
+ state: State::First,
+ newtype_variant: old_newtype_variant,
+ })
+ }
+
+ fn serialize_tuple_struct(
+ self,
+ name: &'static str,
+ len: usize,
+ ) -> Result<Self::SerializeTupleStruct> {
+ if self.struct_names() && !self.newtype_variant {
+ self.write_identifier(name)?;
+ }
+
+ self.serialize_tuple(len)
+ }
+
+ fn serialize_tuple_variant(
+ self,
+ _: &'static str,
+ _: u32,
+ variant: &'static str,
+ len: usize,
+ ) -> Result<Self::SerializeTupleVariant> {
+ self.newtype_variant = false;
+
+ self.write_identifier(variant)?;
+ self.output.write_all(b"(")?;
+
+ if self.separate_tuple_members() {
+ self.is_empty = Some(len == 0);
+
+ self.start_indent()?;
+ }
+
+ Ok(Compound {
+ ser: self,
+ state: State::First,
+ newtype_variant: false,
+ })
+ }
+
+ fn serialize_map(self, len: Option<usize>) -> Result<Self::SerializeMap> {
+ self.newtype_variant = false;
+
+ self.output.write_all(b"{")?;
+
+ if let Some(len) = len {
+ self.is_empty = Some(len == 0);
+ }
+
+ self.start_indent()?;
+
+ Ok(Compound {
+ ser: self,
+ state: State::First,
+ newtype_variant: false,
+ })
+ }
+
+ fn serialize_struct(self, name: &'static str, len: usize) -> Result<Self::SerializeStruct> {
+ let old_newtype_variant = self.newtype_variant;
+ self.newtype_variant = false;
+
+ if !old_newtype_variant {
+ if self.struct_names() {
+ self.write_identifier(name)?;
+ }
+ self.output.write_all(b"(")?;
+ }
+
+ self.is_empty = Some(len == 0);
+ self.start_indent()?;
+
+ Ok(Compound {
+ ser: self,
+ state: State::First,
+ newtype_variant: old_newtype_variant,
+ })
+ }
+
+ fn serialize_struct_variant(
+ self,
+ _: &'static str,
+ _: u32,
+ variant: &'static str,
+ len: usize,
+ ) -> Result<Self::SerializeStructVariant> {
+ self.newtype_variant = false;
+
+ self.write_identifier(variant)?;
+ self.output.write_all(b"(")?;
+
+ self.is_empty = Some(len == 0);
+ self.start_indent()?;
+
+ Ok(Compound {
+ ser: self,
+ state: State::First,
+ newtype_variant: false,
+ })
+ }
+}
+
+enum State {
+ First,
+ Rest,
+}
+
+#[doc(hidden)]
+pub struct Compound<'a, W: io::Write> {
+ ser: &'a mut Serializer<W>,
+ state: State,
+ newtype_variant: bool,
+}
+
+impl<'a, W: io::Write> ser::SerializeSeq for Compound<'a, W> {
+ type Error = Error;
+ type Ok = ();
+
+ fn serialize_element<T>(&mut self, value: &T) -> Result<()>
+ where
+ T: ?Sized + Serialize,
+ {
+ if let State::First = self.state {
+ self.state = State::Rest;
+ } else {
+ self.ser.output.write_all(b",")?;
+ if let Some((ref config, ref mut pretty)) = self.ser.pretty {
+ if pretty.indent <= config.depth_limit && !config.compact_arrays {
+ self.ser.output.write_all(config.new_line.as_bytes())?;
+ } else {
+ self.ser.output.write_all(config.separator.as_bytes())?;
+ }
+ }
+ }
+
+ if !self.ser.compact_arrays() {
+ self.ser.indent()?;
+ }
+
+ if let Some((ref mut config, ref mut pretty)) = self.ser.pretty {
+ if pretty.indent <= config.depth_limit && config.enumerate_arrays {
+ let index = pretty.sequence_index.last_mut().unwrap();
+ write!(self.ser.output, "/*[{}]*/ ", index)?;
+ *index += 1;
+ }
+ }
+
+ value.serialize(&mut *self.ser)?;
+
+ Ok(())
+ }
+
+ fn end(self) -> Result<()> {
+ if let State::Rest = self.state {
+ if let Some((ref config, ref mut pretty)) = self.ser.pretty {
+ if pretty.indent <= config.depth_limit && !config.compact_arrays {
+ self.ser.output.write_all(b",")?;
+ self.ser.output.write_all(config.new_line.as_bytes())?;
+ }
+ }
+ }
+
+ if !self.ser.compact_arrays() {
+ self.ser.end_indent()?;
+ }
+
+ if let Some((_, ref mut pretty)) = self.ser.pretty {
+ pretty.sequence_index.pop();
+ }
+
+ // seq always disables `self.newtype_variant`
+ self.ser.output.write_all(b"]")?;
+ Ok(())
+ }
+}
+
+impl<'a, W: io::Write> ser::SerializeTuple for Compound<'a, W> {
+ type Error = Error;
+ type Ok = ();
+
+ fn serialize_element<T>(&mut self, value: &T) -> Result<()>
+ where
+ T: ?Sized + Serialize,
+ {
+ if let State::First = self.state {
+ self.state = State::Rest;
+ } else {
+ self.ser.output.write_all(b",")?;
+ if let Some((ref config, ref pretty)) = self.ser.pretty {
+ if pretty.indent <= config.depth_limit && self.ser.separate_tuple_members() {
+ self.ser.output.write_all(config.new_line.as_bytes())?;
+ } else {
+ self.ser.output.write_all(config.separator.as_bytes())?;
+ }
+ }
+ }
+
+ if self.ser.separate_tuple_members() {
+ self.ser.indent()?;
+ }
+
+ value.serialize(&mut *self.ser)?;
+
+ Ok(())
+ }
+
+ fn end(self) -> Result<()> {
+ if let State::Rest = self.state {
+ if let Some((ref config, ref pretty)) = self.ser.pretty {
+ if self.ser.separate_tuple_members() && pretty.indent <= config.depth_limit {
+ self.ser.output.write_all(b",")?;
+ self.ser.output.write_all(config.new_line.as_bytes())?;
+ }
+ }
+ }
+ if self.ser.separate_tuple_members() {
+ self.ser.end_indent()?;
+ }
+
+ if !self.newtype_variant {
+ self.ser.output.write_all(b")")?;
+ }
+
+ Ok(())
+ }
+}
+
+// Same thing but for tuple structs.
+impl<'a, W: io::Write> ser::SerializeTupleStruct for Compound<'a, W> {
+ type Error = Error;
+ type Ok = ();
+
+ fn serialize_field<T>(&mut self, value: &T) -> Result<()>
+ where
+ T: ?Sized + Serialize,
+ {
+ ser::SerializeTuple::serialize_element(self, value)
+ }
+
+ fn end(self) -> Result<()> {
+ ser::SerializeTuple::end(self)
+ }
+}
+
+impl<'a, W: io::Write> ser::SerializeTupleVariant for Compound<'a, W> {
+ type Error = Error;
+ type Ok = ();
+
+ fn serialize_field<T>(&mut self, value: &T) -> Result<()>
+ where
+ T: ?Sized + Serialize,
+ {
+ ser::SerializeTuple::serialize_element(self, value)
+ }
+
+ fn end(self) -> Result<()> {
+ ser::SerializeTuple::end(self)
+ }
+}
+
+impl<'a, W: io::Write> ser::SerializeMap for Compound<'a, W> {
+ type Error = Error;
+ type Ok = ();
+
+ fn serialize_key<T>(&mut self, key: &T) -> Result<()>
+ where
+ T: ?Sized + Serialize,
+ {
+ if let State::First = self.state {
+ self.state = State::Rest;
+ } else {
+ self.ser.output.write_all(b",")?;
+
+ if let Some((ref config, ref pretty)) = self.ser.pretty {
+ if pretty.indent <= config.depth_limit {
+ self.ser.output.write_all(config.new_line.as_bytes())?;
+ } else {
+ self.ser.output.write_all(config.separator.as_bytes())?;
+ }
+ }
+ }
+ self.ser.indent()?;
+ key.serialize(&mut *self.ser)
+ }
+
+ fn serialize_value<T>(&mut self, value: &T) -> Result<()>
+ where
+ T: ?Sized + Serialize,
+ {
+ self.ser.output.write_all(b":")?;
+
+ if let Some((ref config, _)) = self.ser.pretty {
+ self.ser.output.write_all(config.separator.as_bytes())?;
+ }
+
+ value.serialize(&mut *self.ser)?;
+
+ Ok(())
+ }
+
+ fn end(self) -> Result<()> {
+ if let State::Rest = self.state {
+ if let Some((ref config, ref pretty)) = self.ser.pretty {
+ if pretty.indent <= config.depth_limit {
+ self.ser.output.write_all(b",")?;
+ self.ser.output.write_all(config.new_line.as_bytes())?;
+ }
+ }
+ }
+ self.ser.end_indent()?;
+ // map always disables `self.newtype_variant`
+ self.ser.output.write_all(b"}")?;
+ Ok(())
+ }
+}
+
+impl<'a, W: io::Write> ser::SerializeStruct for Compound<'a, W> {
+ type Error = Error;
+ type Ok = ();
+
+ fn serialize_field<T>(&mut self, key: &'static str, value: &T) -> Result<()>
+ where
+ T: ?Sized + Serialize,
+ {
+ if let State::First = self.state {
+ self.state = State::Rest;
+ } else {
+ self.ser.output.write_all(b",")?;
+
+ if let Some((ref config, ref pretty)) = self.ser.pretty {
+ if pretty.indent <= config.depth_limit {
+ self.ser.output.write_all(config.new_line.as_bytes())?;
+ } else {
+ self.ser.output.write_all(config.separator.as_bytes())?;
+ }
+ }
+ }
+ self.ser.indent()?;
+ self.ser.write_identifier(key)?;
+ self.ser.output.write_all(b":")?;
+
+ if let Some((ref config, _)) = self.ser.pretty {
+ self.ser.output.write_all(config.separator.as_bytes())?;
+ }
+
+ value.serialize(&mut *self.ser)?;
+
+ Ok(())
+ }
+
+ fn end(self) -> Result<()> {
+ if let State::Rest = self.state {
+ if let Some((ref config, ref pretty)) = self.ser.pretty {
+ if pretty.indent <= config.depth_limit {
+ self.ser.output.write_all(b",")?;
+ self.ser.output.write_all(config.new_line.as_bytes())?;
+ }
+ }
+ }
+ self.ser.end_indent()?;
+ if !self.newtype_variant {
+ self.ser.output.write_all(b")")?;
+ }
+ Ok(())
+ }
+}
+
+impl<'a, W: io::Write> ser::SerializeStructVariant for Compound<'a, W> {
+ type Error = Error;
+ type Ok = ();
+
+ fn serialize_field<T>(&mut self, key: &'static str, value: &T) -> Result<()>
+ where
+ T: ?Sized + Serialize,
+ {
+ ser::SerializeStruct::serialize_field(self, key, value)
+ }
+
+ fn end(self) -> Result<()> {
+ ser::SerializeStruct::end(self)
+ }
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-12 01:30:54 +0000