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#![cfg(all(feature = "parse", feature = "display"))]
#[derive(Copy, Clone)]
pub struct Decoder;
impl toml_test_harness::Decoder for Decoder {
fn name(&self) -> &str {
"toml"
}
fn decode(&self, data: &[u8]) -> Result<toml_test_harness::Decoded, toml_test_harness::Error> {
let data = std::str::from_utf8(data).map_err(toml_test_harness::Error::new)?;
let document = data
.parse::<toml::Value>()
.map_err(toml_test_harness::Error::new)?;
value_to_decoded(&document)
}
}
fn value_to_decoded(
value: &toml::Value,
) -> Result<toml_test_harness::Decoded, toml_test_harness::Error> {
match value {
toml::Value::Integer(v) => Ok(toml_test_harness::Decoded::Value(
toml_test_harness::DecodedValue::from(*v),
)),
toml::Value::String(v) => Ok(toml_test_harness::Decoded::Value(
toml_test_harness::DecodedValue::from(v),
)),
toml::Value::Float(v) => Ok(toml_test_harness::Decoded::Value(
toml_test_harness::DecodedValue::from(*v),
)),
toml::Value::Datetime(v) => {
let value = v.to_string();
let value = match (v.date.is_some(), v.time.is_some(), v.offset.is_some()) {
(true, true, true) => toml_test_harness::DecodedValue::Datetime(value),
(true, true, false) => toml_test_harness::DecodedValue::DatetimeLocal(value),
(true, false, false) => toml_test_harness::DecodedValue::DateLocal(value),
(false, true, false) => toml_test_harness::DecodedValue::TimeLocal(value),
_ => unreachable!("Unsupported case"),
};
Ok(toml_test_harness::Decoded::Value(value))
}
toml::Value::Boolean(v) => Ok(toml_test_harness::Decoded::Value(
toml_test_harness::DecodedValue::from(*v),
)),
toml::Value::Array(v) => {
let v: Result<_, toml_test_harness::Error> = v.iter().map(value_to_decoded).collect();
Ok(toml_test_harness::Decoded::Array(v?))
}
toml::Value::Table(v) => table_to_decoded(v),
}
}
fn table_to_decoded(
value: &toml::value::Table,
) -> Result<toml_test_harness::Decoded, toml_test_harness::Error> {
let table: Result<_, toml_test_harness::Error> = value
.iter()
.map(|(k, v)| {
let k = k.to_owned();
let v = value_to_decoded(v)?;
Ok((k, v))
})
.collect();
Ok(toml_test_harness::Decoded::Table(table?))
}
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