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#![cfg(all(feature = "parse", feature = "display"))]
#[derive(Copy, Clone)]
pub struct Encoder;
impl toml_test_harness::Encoder for Encoder {
fn name(&self) -> &str {
"toml"
}
fn encode(&self, data: toml_test_harness::Decoded) -> Result<String, toml_test_harness::Error> {
let value = from_decoded(&data)?;
let toml::Value::Table(document) = value else {
return Err(toml_test_harness::Error::new("no root table"));
};
let s = toml::to_string(&document).map_err(toml_test_harness::Error::new)?;
Ok(s)
}
}
fn from_decoded(
decoded: &toml_test_harness::Decoded,
) -> Result<toml::Value, toml_test_harness::Error> {
let value = match decoded {
toml_test_harness::Decoded::Value(value) => from_decoded_value(value)?,
toml_test_harness::Decoded::Table(value) => toml::Value::Table(from_table(value)?),
toml_test_harness::Decoded::Array(value) => toml::Value::Array(from_array(value)?),
};
Ok(value)
}
fn from_decoded_value(
decoded: &toml_test_harness::DecodedValue,
) -> Result<toml::Value, toml_test_harness::Error> {
match decoded {
toml_test_harness::DecodedValue::String(value) => Ok(toml::Value::String(value.clone())),
toml_test_harness::DecodedValue::Integer(value) => value
.parse::<i64>()
.map_err(toml_test_harness::Error::new)
.map(toml::Value::Integer),
toml_test_harness::DecodedValue::Float(value) => value
.parse::<f64>()
.map_err(toml_test_harness::Error::new)
.map(toml::Value::Float),
toml_test_harness::DecodedValue::Bool(value) => value
.parse::<bool>()
.map_err(toml_test_harness::Error::new)
.map(toml::Value::Boolean),
toml_test_harness::DecodedValue::Datetime(value) => value
.parse::<toml::value::Datetime>()
.map_err(toml_test_harness::Error::new)
.map(toml::Value::Datetime),
toml_test_harness::DecodedValue::DatetimeLocal(value) => value
.parse::<toml::value::Datetime>()
.map_err(toml_test_harness::Error::new)
.map(toml::Value::Datetime),
toml_test_harness::DecodedValue::DateLocal(value) => value
.parse::<toml::value::Datetime>()
.map_err(toml_test_harness::Error::new)
.map(toml::Value::Datetime),
toml_test_harness::DecodedValue::TimeLocal(value) => value
.parse::<toml::value::Datetime>()
.map_err(toml_test_harness::Error::new)
.map(toml::Value::Datetime),
}
}
fn from_table(
decoded: &std::collections::HashMap<String, toml_test_harness::Decoded>,
) -> Result<toml::value::Table, toml_test_harness::Error> {
decoded
.iter()
.map(|(k, v)| {
let v = from_decoded(v)?;
Ok((k.to_owned(), v))
})
.collect()
}
fn from_array(
decoded: &[toml_test_harness::Decoded],
) -> Result<toml::value::Array, toml_test_harness::Error> {
decoded.iter().map(from_decoded).collect()
}
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