Make possible to convert recursive object into strings

This commit is contained in:
Clément Renault 2019-10-22 16:02:02 +02:00
parent 5dc8465ebd
commit 858bf359b8
No known key found for this signature in database
GPG Key ID: 92ADA4E935E71FA4
2 changed files with 70 additions and 8 deletions

View File

@ -12,8 +12,8 @@ impl ser::Serializer for ConvertToString {
type SerializeTuple = ser::Impossible<Self::Ok, Self::Error>;
type SerializeTupleStruct = ser::Impossible<Self::Ok, Self::Error>;
type SerializeTupleVariant = ser::Impossible<Self::Ok, Self::Error>;
type SerializeMap = ser::Impossible<Self::Ok, Self::Error>;
type SerializeStruct = ser::Impossible<Self::Ok, Self::Error>;
type SerializeMap = MapConvertToString;
type SerializeStruct = StructConvertToString;
type SerializeStructVariant = ser::Impossible<Self::Ok, Self::Error>;
fn serialize_bool(self, _value: bool) -> Result<Self::Ok, Self::Error> {
@ -169,7 +169,9 @@ impl ser::Serializer for ConvertToString {
}
fn serialize_map(self, _len: Option<usize>) -> Result<Self::SerializeMap, Self::Error> {
Err(SerializerError::UnserializableType { type_name: "map" })
Ok(MapConvertToString {
text: String::new(),
})
}
fn serialize_struct(
@ -177,8 +179,8 @@ impl ser::Serializer for ConvertToString {
_name: &'static str,
_len: usize,
) -> Result<Self::SerializeStruct, Self::Error> {
Err(SerializerError::UnserializableType {
type_name: "struct",
Ok(StructConvertToString {
text: String::new(),
})
}
@ -194,3 +196,63 @@ impl ser::Serializer for ConvertToString {
})
}
}
pub struct MapConvertToString {
text: String,
}
impl ser::SerializeMap for MapConvertToString {
type Ok = String;
type Error = SerializerError;
fn serialize_key<T: ?Sized>(&mut self, key: &T) -> Result<(), Self::Error>
where
T: ser::Serialize,
{
let text = key.serialize(ConvertToString)?;
self.text.push_str(&text);
self.text.push_str(" ");
Ok(())
}
fn serialize_value<T: ?Sized>(&mut self, value: &T) -> Result<(), Self::Error>
where
T: ser::Serialize,
{
let text = value.serialize(ConvertToString)?;
self.text.push_str(&text);
Ok(())
}
fn end(self) -> Result<Self::Ok, Self::Error> {
Ok(self.text)
}
}
pub struct StructConvertToString {
text: String,
}
impl ser::SerializeStruct for StructConvertToString {
type Ok = String;
type Error = SerializerError;
fn serialize_field<T: ?Sized>(
&mut self,
key: &'static str,
value: &T,
) -> Result<(), Self::Error>
where
T: ser::Serialize,
{
let value = value.serialize(ConvertToString)?;
self.text.push_str(key);
self.text.push_str(" ");
self.text.push_str(&value);
Ok(())
}
fn end(self) -> Result<Self::Ok, Self::Error> {
Ok(self.text)
}
}

View File

@ -20,7 +20,7 @@ impl<'a> ser::Serializer for Indexer<'a> {
type SerializeTupleStruct = ser::Impossible<Self::Ok, Self::Error>;
type SerializeTupleVariant = ser::Impossible<Self::Ok, Self::Error>;
type SerializeMap = MapIndexer<'a>;
type SerializeStruct = StructSerializer<'a>;
type SerializeStruct = StructIndexer<'a>;
type SerializeStructVariant = ser::Impossible<Self::Ok, Self::Error>;
fn serialize_bool(self, _value: bool) -> Result<Self::Ok, Self::Error> {
@ -302,14 +302,14 @@ impl<'a> ser::SerializeMap for MapIndexer<'a> {
}
}
pub struct StructSerializer<'a> {
pub struct StructIndexer<'a> {
attribute: SchemaAttr,
document_id: DocumentId,
indexer: &'a mut RawIndexer,
texts: Vec<String>,
}
impl<'a> ser::SerializeStruct for StructSerializer<'a> {
impl<'a> ser::SerializeStruct for StructIndexer<'a> {
type Ok = Option<usize>;
type Error = SerializerError;