use std::io;
use serde::{de, ser, Deserialize, Serialize};
use crate::de::Deserializer;
use crate::error::{Result, SpannedResult};
use crate::extensions::Extensions;
use crate::ser::{PrettyConfig, Serializer};
#[derive(Clone, Debug, Serialize, Deserialize)]
#[serde(default)]
#[non_exhaustive]
pub struct Options {
pub default_extensions: Extensions,
}
impl Default for Options {
fn default() -> Self {
Self {
default_extensions: Extensions::empty(),
}
}
}
impl Options {
#[must_use]
pub fn with_default_extension(mut self, default_extension: Extensions) -> Self {
self.default_extensions |= default_extension;
self
}
#[must_use]
pub fn without_default_extension(mut self, default_extension: Extensions) -> Self {
self.default_extensions &= !default_extension;
self
}
}
impl Options {
pub fn from_reader<R, T>(&self, mut rdr: R) -> SpannedResult<T>
where
R: io::Read,
T: de::DeserializeOwned,
{
let mut bytes = Vec::new();
rdr.read_to_end(&mut bytes)?;
self.from_bytes(&bytes)
}
pub fn from_str<'a, T>(&self, s: &'a str) -> SpannedResult<T>
where
T: de::Deserialize<'a>,
{
self.from_bytes(s.as_bytes())
}
pub fn from_bytes<'a, T>(&self, s: &'a [u8]) -> SpannedResult<T>
where
T: de::Deserialize<'a>,
{
self.from_bytes_seed(s, std::marker::PhantomData)
}
pub fn from_reader_seed<R, S, T>(&self, mut rdr: R, seed: S) -> SpannedResult<T>
where
R: io::Read,
S: for<'a> de::DeserializeSeed<'a, Value = T>,
{
let mut bytes = Vec::new();
rdr.read_to_end(&mut bytes)?;
self.from_bytes_seed(&bytes, seed)
}
pub fn from_str_seed<'a, S, T>(&self, s: &'a str, seed: S) -> SpannedResult<T>
where
S: de::DeserializeSeed<'a, Value = T>,
{
self.from_bytes_seed(s.as_bytes(), seed)
}
pub fn from_bytes_seed<'a, S, T>(&self, s: &'a [u8], seed: S) -> SpannedResult<T>
where
S: de::DeserializeSeed<'a, Value = T>,
{
let mut deserializer = Deserializer::from_bytes_with_options(s, self.clone())?;
let value = seed
.deserialize(&mut deserializer)
.map_err(|e| deserializer.span_error(e))?;
deserializer.end().map_err(|e| deserializer.span_error(e))?;
Ok(value)
}
pub fn to_writer<W, T>(&self, writer: W, value: &T) -> Result<()>
where
W: io::Write,
T: ?Sized + ser::Serialize,
{
let mut s = Serializer::with_options(writer, None, self.clone())?;
value.serialize(&mut s)
}
pub fn to_writer_pretty<W, T>(&self, writer: W, value: &T, config: PrettyConfig) -> Result<()>
where
W: io::Write,
T: ?Sized + ser::Serialize,
{
let mut s = Serializer::with_options(writer, Some(config), self.clone())?;
value.serialize(&mut s)
}
pub fn to_string<T>(&self, value: &T) -> Result<String>
where
T: ?Sized + ser::Serialize,
{
let mut output = Vec::new();
let mut s = Serializer::with_options(&mut output, None, self.clone())?;
value.serialize(&mut s)?;
Ok(String::from_utf8(output).expect("Ron should be utf-8"))
}
pub fn to_string_pretty<T>(&self, value: &T, config: PrettyConfig) -> Result<String>
where
T: ?Sized + ser::Serialize,
{
let mut output = Vec::new();
let mut s = Serializer::with_options(&mut output, Some(config), self.clone())?;
value.serialize(&mut s)?;
Ok(String::from_utf8(output).expect("Ron should be utf-8"))
}
}