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</pre></div><pre class="rust"><code><span class="kw">use </span>serde::de::IntoDeserializer;
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<span class="kw">use </span><span class="kw">crate</span>::de::Error;
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<span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">struct </span>TableDeserializer {
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span: <span class="prelude-ty">Option</span><std::ops::Range<usize>>,
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items: <span class="kw">crate</span>::table::KeyValuePairs,
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}
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<span class="comment">// Note: this is wrapped by `Deserializer` and `ValueDeserializer` and any trait methods
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// implemented here need to be wrapped there
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</span><span class="kw">impl</span><<span class="lifetime">'de</span>> serde::Deserializer<<span class="lifetime">'de</span>> <span class="kw">for </span>TableDeserializer {
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<span class="kw">type </span>Error = Error;
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<span class="kw">fn </span>deserialize_any<V>(<span class="self">self</span>, visitor: V) -> <span class="prelude-ty">Result</span><V::Value, <span class="self">Self</span>::Error>
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<span class="kw">where
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</span>V: serde::de::Visitor<<span class="lifetime">'de</span>>,
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{
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visitor.visit_map(<span class="kw">crate</span>::de::TableMapAccess::new(<span class="self">self</span>))
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}
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<span class="comment">// `None` is interpreted as a missing field so be sure to implement `Some`
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// as a present field.
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</span><span class="kw">fn </span>deserialize_option<V>(<span class="self">self</span>, visitor: V) -> <span class="prelude-ty">Result</span><V::Value, Error>
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<span class="kw">where
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</span>V: serde::de::Visitor<<span class="lifetime">'de</span>>,
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{
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visitor.visit_some(<span class="self">self</span>)
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}
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<span class="kw">fn </span>deserialize_newtype_struct<V>(
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<span class="self">self</span>,
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_name: <span class="kw-2">&</span><span class="lifetime">'static </span>str,
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visitor: V,
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) -> <span class="prelude-ty">Result</span><V::Value, Error>
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<span class="kw">where
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</span>V: serde::de::Visitor<<span class="lifetime">'de</span>>,
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{
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visitor.visit_newtype_struct(<span class="self">self</span>)
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}
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<span class="kw">fn </span>deserialize_struct<V>(
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<span class="self">self</span>,
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name: <span class="kw-2">&</span><span class="lifetime">'static </span>str,
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fields: <span class="kw-2">&</span><span class="lifetime">'static </span>[<span class="kw-2">&</span><span class="lifetime">'static </span>str],
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visitor: V,
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) -> <span class="prelude-ty">Result</span><V::Value, Error>
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<span class="kw">where
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</span>V: serde::de::Visitor<<span class="lifetime">'de</span>>,
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{
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<span class="kw">if </span>serde_spanned::__unstable::is_spanned(name, fields) {
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<span class="kw">if let </span><span class="prelude-val">Some</span>(span) = <span class="self">self</span>.span.clone() {
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<span class="kw">return </span>visitor.visit_map(<span class="kw">super</span>::SpannedDeserializer::new(<span class="self">self</span>, span));
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}
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}
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<span class="self">self</span>.deserialize_any(visitor)
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}
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<span class="comment">// Called when the type to deserialize is an enum, as opposed to a field in the type.
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</span><span class="kw">fn </span>deserialize_enum<V>(
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<span class="self">self</span>,
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_name: <span class="kw-2">&</span><span class="lifetime">'static </span>str,
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_variants: <span class="kw-2">&</span><span class="lifetime">'static </span>[<span class="kw-2">&</span><span class="lifetime">'static </span>str],
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visitor: V,
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||
) -> <span class="prelude-ty">Result</span><V::Value, Error>
|
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<span class="kw">where
|
||
</span>V: serde::de::Visitor<<span class="lifetime">'de</span>>,
|
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{
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<span class="kw">if </span><span class="self">self</span>.items.is_empty() {
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<span class="prelude-val">Err</span>(<span class="kw">crate</span>::de::Error::custom(
|
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<span class="string">"wanted exactly 1 element, found 0 elements"</span>,
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<span class="self">self</span>.span,
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))
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} <span class="kw">else if </span><span class="self">self</span>.items.len() != <span class="number">1 </span>{
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<span class="prelude-val">Err</span>(<span class="kw">crate</span>::de::Error::custom(
|
||
<span class="string">"wanted exactly 1 element, more than 1 element"</span>,
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<span class="self">self</span>.span,
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))
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} <span class="kw">else </span>{
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visitor.visit_enum(<span class="kw">crate</span>::de::TableMapAccess::new(<span class="self">self</span>))
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}
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}
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<span class="macro">serde::forward_to_deserialize_any! </span>{
|
||
bool u8 u16 u32 u64 i8 i16 i32 i64 f32 f64 char str string seq
|
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bytes byte_buf map unit
|
||
ignored_any unit_struct tuple_struct tuple identifier
|
||
}
|
||
}
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<span class="kw">impl</span><<span class="lifetime">'de</span>> serde::de::IntoDeserializer<<span class="lifetime">'de</span>, <span class="kw">crate</span>::de::Error> <span class="kw">for </span>TableDeserializer {
|
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<span class="kw">type </span>Deserializer = TableDeserializer;
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<span class="kw">fn </span>into_deserializer(<span class="self">self</span>) -> <span class="self">Self</span>::Deserializer {
|
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<span class="self">self
|
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</span>}
|
||
}
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||
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<span class="kw">impl </span><span class="kw">crate</span>::Table {
|
||
<span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>into_deserializer(<span class="self">self</span>) -> TableDeserializer {
|
||
TableDeserializer {
|
||
span: <span class="self">self</span>.span(),
|
||
items: <span class="self">self</span>.items,
|
||
}
|
||
}
|
||
}
|
||
|
||
<span class="kw">impl </span><span class="kw">crate</span>::InlineTable {
|
||
<span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>into_deserializer(<span class="self">self</span>) -> TableDeserializer {
|
||
TableDeserializer {
|
||
span: <span class="self">self</span>.span(),
|
||
items: <span class="self">self</span>.items,
|
||
}
|
||
}
|
||
}
|
||
|
||
<span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">struct </span>TableMapAccess {
|
||
iter: indexmap::map::IntoIter<<span class="kw">crate</span>::InternalString, <span class="kw">crate</span>::table::TableKeyValue>,
|
||
span: <span class="prelude-ty">Option</span><std::ops::Range<usize>>,
|
||
value: <span class="prelude-ty">Option</span><(<span class="kw">crate</span>::Key, <span class="kw">crate</span>::Item)>,
|
||
}
|
||
|
||
<span class="kw">impl </span>TableMapAccess {
|
||
<span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>new(input: TableDeserializer) -> <span class="self">Self </span>{
|
||
<span class="self">Self </span>{
|
||
iter: input.items.into_iter(),
|
||
span: input.span,
|
||
value: <span class="prelude-val">None</span>,
|
||
}
|
||
}
|
||
}
|
||
|
||
<span class="kw">impl</span><<span class="lifetime">'de</span>> serde::de::MapAccess<<span class="lifetime">'de</span>> <span class="kw">for </span>TableMapAccess {
|
||
<span class="kw">type </span>Error = Error;
|
||
|
||
<span class="kw">fn </span>next_key_seed<K>(<span class="kw-2">&mut </span><span class="self">self</span>, seed: K) -> <span class="prelude-ty">Result</span><<span class="prelude-ty">Option</span><K::Value>, <span class="self">Self</span>::Error>
|
||
<span class="kw">where
|
||
</span>K: serde::de::DeserializeSeed<<span class="lifetime">'de</span>>,
|
||
{
|
||
<span class="kw">match </span><span class="self">self</span>.iter.next() {
|
||
<span class="prelude-val">Some</span>((k, v)) => {
|
||
<span class="kw">let </span>ret = seed
|
||
.deserialize(<span class="kw">super</span>::KeyDeserializer::new(k, v.key.span()))
|
||
.map(<span class="prelude-val">Some</span>)
|
||
.map_err(|<span class="kw-2">mut </span>e: <span class="self">Self</span>::Error| {
|
||
<span class="kw">if </span>e.span().is_none() {
|
||
e.set_span(v.key.span());
|
||
}
|
||
e
|
||
});
|
||
<span class="self">self</span>.value = <span class="prelude-val">Some</span>((v.key, v.value));
|
||
ret
|
||
}
|
||
<span class="prelude-val">None </span>=> <span class="prelude-val">Ok</span>(<span class="prelude-val">None</span>),
|
||
}
|
||
}
|
||
|
||
<span class="kw">fn </span>next_value_seed<V>(<span class="kw-2">&mut </span><span class="self">self</span>, seed: V) -> <span class="prelude-ty">Result</span><V::Value, <span class="self">Self</span>::Error>
|
||
<span class="kw">where
|
||
</span>V: serde::de::DeserializeSeed<<span class="lifetime">'de</span>>,
|
||
{
|
||
<span class="kw">match </span><span class="self">self</span>.value.take() {
|
||
<span class="prelude-val">Some</span>((k, v)) => {
|
||
<span class="kw">let </span>span = v.span().or_else(|| k.span());
|
||
seed.deserialize(<span class="kw">crate</span>::de::ValueDeserializer::new(v))
|
||
.map_err(|<span class="kw-2">mut </span>e: <span class="self">Self</span>::Error| {
|
||
<span class="kw">if </span>e.span().is_none() {
|
||
e.set_span(span);
|
||
}
|
||
e.add_key(k.get().to_owned());
|
||
e
|
||
})
|
||
}
|
||
<span class="prelude-val">None </span>=> {
|
||
<span class="macro">panic!</span>(<span class="string">"no more values in next_value_seed, internal error in ValueDeserializer"</span>)
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
<span class="kw">impl</span><<span class="lifetime">'de</span>> serde::de::EnumAccess<<span class="lifetime">'de</span>> <span class="kw">for </span>TableMapAccess {
|
||
<span class="kw">type </span>Error = Error;
|
||
<span class="kw">type </span>Variant = <span class="kw">super</span>::TableEnumDeserializer;
|
||
|
||
<span class="kw">fn </span>variant_seed<V>(<span class="kw-2">mut </span><span class="self">self</span>, seed: V) -> <span class="prelude-ty">Result</span><(V::Value, <span class="self">Self</span>::Variant), <span class="self">Self</span>::Error>
|
||
<span class="kw">where
|
||
</span>V: serde::de::DeserializeSeed<<span class="lifetime">'de</span>>,
|
||
{
|
||
<span class="kw">let </span>(key, value) = <span class="kw">match </span><span class="self">self</span>.iter.next() {
|
||
<span class="prelude-val">Some</span>(pair) => pair,
|
||
<span class="prelude-val">None </span>=> {
|
||
<span class="kw">return </span><span class="prelude-val">Err</span>(Error::custom(
|
||
<span class="string">"expected table with exactly 1 entry, found empty table"</span>,
|
||
<span class="self">self</span>.span,
|
||
));
|
||
}
|
||
};
|
||
|
||
<span class="kw">let </span>val = seed
|
||
.deserialize(key.into_deserializer())
|
||
.map_err(|<span class="kw-2">mut </span>e: <span class="self">Self</span>::Error| {
|
||
<span class="kw">if </span>e.span().is_none() {
|
||
e.set_span(value.key.span());
|
||
}
|
||
e
|
||
})<span class="question-mark">?</span>;
|
||
|
||
<span class="kw">let </span>variant = <span class="kw">super</span>::TableEnumDeserializer::new(value.value);
|
||
|
||
<span class="prelude-val">Ok</span>((val, variant))
|
||
}
|
||
}
|
||
</code></pre></div></section></main></body></html> |