taos_query::common

Enum Value

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pub enum Value {

Show 21 variants    Null(Ty),
    Bool(bool),
    TinyInt(i8),
    SmallInt(i16),
    Int(i32),
    BigInt(i64),
    Float(f32),
    Double(f64),
    VarChar(String),
    Timestamp(Timestamp),
    NChar(String),
    UTinyInt(u8),
    USmallInt(u16),
    UInt(u32),
    UBigInt(u64),
    Json(Value),
    VarBinary(Bytes),
    Decimal(Decimal),
    Blob(Vec<u8>),
    MediumBlob(Vec<u8>),
    Geometry(Bytes),

}

Variants§

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Null(Ty)

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Bool(bool)

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TinyInt(i8)

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SmallInt(i16)

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Int(i32)

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BigInt(i64)

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Float(f32)

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Double(f64)

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VarChar(String)

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Timestamp(Timestamp)

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NChar(String)

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UTinyInt(u8)

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USmallInt(u16)

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UInt(u32)

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UBigInt(u64)

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Json(Value)

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VarBinary(Bytes)

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Decimal(Decimal)

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Blob(Vec<u8>)

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MediumBlob(Vec<u8>)

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Geometry(Bytes)

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impl Value

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pub const fn ty(&self) -> Ty

The data type of this value.

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pub fn to_borrowed_value(&self) -> BorrowedValue<'_>

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pub const fn is_null(&self) -> bool

Check if the value is null.

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pub fn strict_as_str(&self) -> &str

Only VarChar, NChar, Json could be treated as &str.

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pub fn to_sql_value(&self) -> String

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pub fn to_string(&self) -> Result<String, Utf8Error>

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pub fn to_json_value(&self) -> Value

Trait Implementations§

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impl Clone for Value

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fn clone(&self) -> Value

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for Value

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl<'de> Deserialize<'de> for Value

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fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>
where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more
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impl<'de, 'v: 'de> Deserializer<'de> for &'v Value

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type Error = Error

The error type that can be returned if some error occurs during deserialization.
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fn deserialize_any<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where V: Visitor<'de>,

Require the Deserializer to figure out how to drive the visitor based on what data type is in the input. Read more
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fn deserialize_bool<V>( self, visitor: V, ) -> Result<V::Value, <Self as Deserializer<'de>>::Error>
where V: Visitor<'de>,

Hint that the Deserialize type is expecting a bool value.
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fn deserialize_i8<V>( self, visitor: V, ) -> Result<V::Value, <Self as Deserializer<'de>>::Error>
where V: Visitor<'de>,

Hint that the Deserialize type is expecting an i8 value.
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fn deserialize_u8<V>( self, visitor: V, ) -> Result<V::Value, <Self as Deserializer<'de>>::Error>
where V: Visitor<'de>,

Hint that the Deserialize type is expecting a u8 value.
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fn deserialize_i16<V>( self, visitor: V, ) -> Result<V::Value, <Self as Deserializer<'de>>::Error>
where V: Visitor<'de>,

Hint that the Deserialize type is expecting an i16 value.
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fn deserialize_u16<V>( self, visitor: V, ) -> Result<V::Value, <Self as Deserializer<'de>>::Error>
where V: Visitor<'de>,

Hint that the Deserialize type is expecting a u16 value.
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fn deserialize_i32<V>( self, visitor: V, ) -> Result<V::Value, <Self as Deserializer<'de>>::Error>
where V: Visitor<'de>,

Hint that the Deserialize type is expecting an i32 value.
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fn deserialize_u32<V>( self, visitor: V, ) -> Result<V::Value, <Self as Deserializer<'de>>::Error>
where V: Visitor<'de>,

Hint that the Deserialize type is expecting a u32 value.
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fn deserialize_i64<V>( self, visitor: V, ) -> Result<V::Value, <Self as Deserializer<'de>>::Error>
where V: Visitor<'de>,

Hint that the Deserialize type is expecting an i64 value.
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fn deserialize_u64<V>( self, visitor: V, ) -> Result<V::Value, <Self as Deserializer<'de>>::Error>
where V: Visitor<'de>,

Hint that the Deserialize type is expecting a u64 value.
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fn deserialize_f32<V>( self, visitor: V, ) -> Result<V::Value, <Self as Deserializer<'de>>::Error>
where V: Visitor<'de>,

Hint that the Deserialize type is expecting a f32 value.
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fn deserialize_f64<V>( self, visitor: V, ) -> Result<V::Value, <Self as Deserializer<'de>>::Error>
where V: Visitor<'de>,

Hint that the Deserialize type is expecting a f64 value.
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fn deserialize_char<V>( self, visitor: V, ) -> Result<V::Value, <Self as Deserializer<'de>>::Error>
where V: Visitor<'de>,

Hint that the Deserialize type is expecting a char value.
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fn deserialize_unit<V>( self, visitor: V, ) -> Result<V::Value, <Self as Deserializer<'de>>::Error>
where V: Visitor<'de>,

Hint that the Deserialize type is expecting a unit value.
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fn deserialize_bytes<V>( self, visitor: V, ) -> Result<V::Value, <Self as Deserializer<'de>>::Error>
where V: Visitor<'de>,

Hint that the Deserialize type is expecting a byte array and does not benefit from taking ownership of buffered data owned by the Deserializer. Read more
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fn deserialize_byte_buf<V>( self, visitor: V, ) -> Result<V::Value, <Self as Deserializer<'de>>::Error>
where V: Visitor<'de>,

Hint that the Deserialize type is expecting a byte array and would benefit from taking ownership of buffered data owned by the Deserializer. Read more
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fn deserialize_unit_struct<V>( self, name: &'static str, visitor: V, ) -> Result<V::Value, <Self as Deserializer<'de>>::Error>
where V: Visitor<'de>,

Hint that the Deserialize type is expecting a unit struct with a particular name.
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fn deserialize_tuple_struct<V>( self, name: &'static str, len: usize, visitor: V, ) -> Result<V::Value, <Self as Deserializer<'de>>::Error>
where V: Visitor<'de>,

Hint that the Deserialize type is expecting a tuple struct with a particular name and number of fields.
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fn deserialize_tuple<V>( self, len: usize, visitor: V, ) -> Result<V::Value, <Self as Deserializer<'de>>::Error>
where V: Visitor<'de>,

Hint that the Deserialize type is expecting a sequence of values and knows how many values there are without looking at the serialized data.
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fn deserialize_identifier<V>( self, visitor: V, ) -> Result<V::Value, <Self as Deserializer<'de>>::Error>
where V: Visitor<'de>,

Hint that the Deserialize type is expecting the name of a struct field or the discriminant of an enum variant.
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fn deserialize_ignored_any<V>( self, visitor: V, ) -> Result<V::Value, <Self as Deserializer<'de>>::Error>
where V: Visitor<'de>,

Hint that the Deserialize type needs to deserialize a value whose type doesn’t matter because it is ignored. Read more
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fn deserialize_str<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where V: Visitor<'de>,

Hint that the Deserialize type is expecting a string value and does not benefit from taking ownership of buffered data owned by the Deserializer. Read more
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fn deserialize_string<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where V: Visitor<'de>,

Hint that the Deserialize type is expecting a string value and would benefit from taking ownership of buffered data owned by the Deserializer. Read more
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fn deserialize_option<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where V: Visitor<'de>,

Hint that the Deserialize type is expecting an optional value. Read more
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fn deserialize_newtype_struct<V>( self, _name: &'static str, visitor: V, ) -> Result<V::Value, Self::Error>
where V: Visitor<'de>,

Hint that the Deserialize type is expecting a newtype struct with a particular name.
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fn deserialize_map<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where V: Visitor<'de>,

Hint that the Deserialize type is expecting a map of key-value pairs.
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fn deserialize_seq<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where V: Visitor<'de>,

Hint that the Deserialize type is expecting a sequence of values.
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fn deserialize_enum<V>( self, name: &'static str, variants: &'static [&'static str], visitor: V, ) -> Result<V::Value, Self::Error>
where V: Visitor<'de>,

Hint that the Deserialize type is expecting an enum value with a particular name and possible variants.
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fn deserialize_struct<V>( self, name: &'static str, fields: &'static [&'static str], visitor: V, ) -> Result<V::Value, Self::Error>
where V: Visitor<'de>,

Hint that the Deserialize type is expecting a struct with a particular name and fields.
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fn deserialize_i128<V>( self, visitor: V, ) -> Result<<V as Visitor<'de>>::Value, Self::Error>
where V: Visitor<'de>,

Hint that the Deserialize type is expecting an i128 value. Read more
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fn deserialize_u128<V>( self, visitor: V, ) -> Result<<V as Visitor<'de>>::Value, Self::Error>
where V: Visitor<'de>,

Hint that the Deserialize type is expecting an u128 value. Read more
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fn is_human_readable(&self) -> bool

Determine whether Deserialize implementations should expect to deserialize their human-readable form. Read more
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impl<'de, 'b: 'de> Deserializer<'de> for Value

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type Error = Error

The error type that can be returned if some error occurs during deserialization.
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fn deserialize_any<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where V: Visitor<'de>,

Require the Deserializer to figure out how to drive the visitor based on what data type is in the input. Read more
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fn deserialize_bool<V>( self, visitor: V, ) -> Result<V::Value, <Self as Deserializer<'de>>::Error>
where V: Visitor<'de>,

Hint that the Deserialize type is expecting a bool value.
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fn deserialize_i8<V>( self, visitor: V, ) -> Result<V::Value, <Self as Deserializer<'de>>::Error>
where V: Visitor<'de>,

Hint that the Deserialize type is expecting an i8 value.
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fn deserialize_u8<V>( self, visitor: V, ) -> Result<V::Value, <Self as Deserializer<'de>>::Error>
where V: Visitor<'de>,

Hint that the Deserialize type is expecting a u8 value.
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fn deserialize_i16<V>( self, visitor: V, ) -> Result<V::Value, <Self as Deserializer<'de>>::Error>
where V: Visitor<'de>,

Hint that the Deserialize type is expecting an i16 value.
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fn deserialize_u16<V>( self, visitor: V, ) -> Result<V::Value, <Self as Deserializer<'de>>::Error>
where V: Visitor<'de>,

Hint that the Deserialize type is expecting a u16 value.
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fn deserialize_i32<V>( self, visitor: V, ) -> Result<V::Value, <Self as Deserializer<'de>>::Error>
where V: Visitor<'de>,

Hint that the Deserialize type is expecting an i32 value.
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fn deserialize_u32<V>( self, visitor: V, ) -> Result<V::Value, <Self as Deserializer<'de>>::Error>
where V: Visitor<'de>,

Hint that the Deserialize type is expecting a u32 value.
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fn deserialize_i64<V>( self, visitor: V, ) -> Result<V::Value, <Self as Deserializer<'de>>::Error>
where V: Visitor<'de>,

Hint that the Deserialize type is expecting an i64 value.
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fn deserialize_u64<V>( self, visitor: V, ) -> Result<V::Value, <Self as Deserializer<'de>>::Error>
where V: Visitor<'de>,

Hint that the Deserialize type is expecting a u64 value.
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fn deserialize_f32<V>( self, visitor: V, ) -> Result<V::Value, <Self as Deserializer<'de>>::Error>
where V: Visitor<'de>,

Hint that the Deserialize type is expecting a f32 value.
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fn deserialize_f64<V>( self, visitor: V, ) -> Result<V::Value, <Self as Deserializer<'de>>::Error>
where V: Visitor<'de>,

Hint that the Deserialize type is expecting a f64 value.
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fn deserialize_char<V>( self, visitor: V, ) -> Result<V::Value, <Self as Deserializer<'de>>::Error>
where V: Visitor<'de>,

Hint that the Deserialize type is expecting a char value.
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fn deserialize_unit<V>( self, visitor: V, ) -> Result<V::Value, <Self as Deserializer<'de>>::Error>
where V: Visitor<'de>,

Hint that the Deserialize type is expecting a unit value.
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fn deserialize_bytes<V>( self, visitor: V, ) -> Result<V::Value, <Self as Deserializer<'de>>::Error>
where V: Visitor<'de>,

Hint that the Deserialize type is expecting a byte array and does not benefit from taking ownership of buffered data owned by the Deserializer. Read more
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fn deserialize_byte_buf<V>( self, visitor: V, ) -> Result<V::Value, <Self as Deserializer<'de>>::Error>
where V: Visitor<'de>,

Hint that the Deserialize type is expecting a byte array and would benefit from taking ownership of buffered data owned by the Deserializer. Read more
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fn deserialize_unit_struct<V>( self, name: &'static str, visitor: V, ) -> Result<V::Value, <Self as Deserializer<'de>>::Error>
where V: Visitor<'de>,

Hint that the Deserialize type is expecting a unit struct with a particular name.
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fn deserialize_tuple_struct<V>( self, name: &'static str, len: usize, visitor: V, ) -> Result<V::Value, <Self as Deserializer<'de>>::Error>
where V: Visitor<'de>,

Hint that the Deserialize type is expecting a tuple struct with a particular name and number of fields.
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fn deserialize_tuple<V>( self, len: usize, visitor: V, ) -> Result<V::Value, <Self as Deserializer<'de>>::Error>
where V: Visitor<'de>,

Hint that the Deserialize type is expecting a sequence of values and knows how many values there are without looking at the serialized data.
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fn deserialize_identifier<V>( self, visitor: V, ) -> Result<V::Value, <Self as Deserializer<'de>>::Error>
where V: Visitor<'de>,

Hint that the Deserialize type is expecting the name of a struct field or the discriminant of an enum variant.
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fn deserialize_ignored_any<V>( self, visitor: V, ) -> Result<V::Value, <Self as Deserializer<'de>>::Error>
where V: Visitor<'de>,

Hint that the Deserialize type needs to deserialize a value whose type doesn’t matter because it is ignored. Read more
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fn deserialize_str<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where V: Visitor<'de>,

Hint that the Deserialize type is expecting a string value and does not benefit from taking ownership of buffered data owned by the Deserializer. Read more
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fn deserialize_string<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where V: Visitor<'de>,

Hint that the Deserialize type is expecting a string value and would benefit from taking ownership of buffered data owned by the Deserializer. Read more
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fn deserialize_option<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where V: Visitor<'de>,

Hint that the Deserialize type is expecting an optional value. Read more
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fn deserialize_newtype_struct<V>( self, _name: &'static str, visitor: V, ) -> Result<V::Value, Self::Error>
where V: Visitor<'de>,

Hint that the Deserialize type is expecting a newtype struct with a particular name.
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fn deserialize_map<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where V: Visitor<'de>,

Hint that the Deserialize type is expecting a map of key-value pairs.
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fn deserialize_seq<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where V: Visitor<'de>,

Hint that the Deserialize type is expecting a sequence of values.
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fn deserialize_enum<V>( self, name: &'static str, variants: &'static [&'static str], visitor: V, ) -> Result<V::Value, Self::Error>
where V: Visitor<'de>,

Hint that the Deserialize type is expecting an enum value with a particular name and possible variants.
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fn deserialize_struct<V>( self, name: &'static str, fields: &'static [&'static str], visitor: V, ) -> Result<V::Value, Self::Error>
where V: Visitor<'de>,

Hint that the Deserialize type is expecting a struct with a particular name and fields.
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fn deserialize_i128<V>( self, visitor: V, ) -> Result<<V as Visitor<'de>>::Value, Self::Error>
where V: Visitor<'de>,

Hint that the Deserialize type is expecting an i128 value. Read more
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fn deserialize_u128<V>( self, visitor: V, ) -> Result<<V as Visitor<'de>>::Value, Self::Error>
where V: Visitor<'de>,

Hint that the Deserialize type is expecting an u128 value. Read more
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fn is_human_readable(&self) -> bool

Determine whether Deserialize implementations should expect to deserialize their human-readable form. Read more
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impl Display for Value

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl<'de, 'v> EnumAccess<'de> for &'v Value

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type Error = Error

The error type that can be returned if some error occurs during deserialization.
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type Variant = UnitOnly

The Visitor that will be used to deserialize the content of the enum variant.
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fn variant_seed<V>( self, seed: V, ) -> Result<(V::Value, Self::Variant), Self::Error>
where V: DeserializeSeed<'de>,

variant is called to identify which variant to deserialize. Read more
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fn variant<V>(self) -> Result<(V, Self::Variant), Self::Error>
where V: Deserialize<'de>,

variant is called to identify which variant to deserialize. Read more
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impl<'de> EnumAccess<'de> for Value

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type Error = Error

The error type that can be returned if some error occurs during deserialization.
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type Variant = UnitOnly

The Visitor that will be used to deserialize the content of the enum variant.
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fn variant_seed<V>( self, seed: V, ) -> Result<(V::Value, Self::Variant), Self::Error>
where V: DeserializeSeed<'de>,

variant is called to identify which variant to deserialize. Read more
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fn variant<V>(self) -> Result<(V, Self::Variant), Self::Error>
where V: Deserialize<'de>,

variant is called to identify which variant to deserialize. Read more
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impl From<Option<Timestamp>> for Value

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fn from(value: Option<Timestamp>) -> Self

Converts to this type from the input type.
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impl From<Option<bool>> for Value

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fn from(value: Option<bool>) -> Self

Converts to this type from the input type.
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impl From<Option<f32>> for Value

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fn from(value: Option<f32>) -> Self

Converts to this type from the input type.
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impl From<Option<f64>> for Value

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fn from(value: Option<f64>) -> Self

Converts to this type from the input type.
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impl From<Option<i16>> for Value

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fn from(value: Option<i16>) -> Self

Converts to this type from the input type.
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impl From<Option<i32>> for Value

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fn from(value: Option<i32>) -> Self

Converts to this type from the input type.
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impl From<Option<i64>> for Value

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fn from(value: Option<i64>) -> Self

Converts to this type from the input type.
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impl From<Option<i8>> for Value

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fn from(value: Option<i8>) -> Self

Converts to this type from the input type.
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impl From<Option<u16>> for Value

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fn from(value: Option<u16>) -> Self

Converts to this type from the input type.
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impl From<Option<u32>> for Value

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fn from(value: Option<u32>) -> Self

Converts to this type from the input type.
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impl From<Option<u64>> for Value

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fn from(value: Option<u64>) -> Self

Converts to this type from the input type.
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impl From<Option<u8>> for Value

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fn from(value: Option<u8>) -> Self

Converts to this type from the input type.
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impl From<Timestamp> for Value

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fn from(value: Timestamp) -> Self

Converts to this type from the input type.
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impl From<Value> for ColumnView

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fn from(value: Value) -> Self

Converts to this type from the input type.
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impl From<bool> for Value

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fn from(value: bool) -> Self

Converts to this type from the input type.
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impl From<f32> for Value

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fn from(value: f32) -> Self

Converts to this type from the input type.
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impl From<f64> for Value

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fn from(value: f64) -> Self

Converts to this type from the input type.
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impl From<i16> for Value

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fn from(value: i16) -> Self

Converts to this type from the input type.
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impl From<i32> for Value

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fn from(value: i32) -> Self

Converts to this type from the input type.
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impl From<i64> for Value

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fn from(value: i64) -> Self

Converts to this type from the input type.
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impl From<i8> for Value

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fn from(value: i8) -> Self

Converts to this type from the input type.
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impl From<u16> for Value

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fn from(value: u16) -> Self

Converts to this type from the input type.
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impl From<u32> for Value

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fn from(value: u32) -> Self

Converts to this type from the input type.
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impl From<u64> for Value

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fn from(value: u64) -> Self

Converts to this type from the input type.
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impl From<u8> for Value

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fn from(value: u8) -> Self

Converts to this type from the input type.
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impl<'de, 'b: 'de> IntoDeserializer<'de> for &'b Value

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type Deserializer = &'b Value

The type of the deserializer being converted into.
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fn into_deserializer(self) -> Self::Deserializer

Convert this value into a deserializer.
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impl<'de, 'b: 'de> IntoDeserializer<'de> for Value

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type Deserializer = Value

The type of the deserializer being converted into.
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fn into_deserializer(self) -> Self::Deserializer

Convert this value into a deserializer.
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impl<'b> PartialEq<&Value> for BorrowedValue<'b>

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fn eq(&self, other: &&Value) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl<'b> PartialEq<BorrowedValue<'b>> for Value

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fn eq(&self, other: &BorrowedValue<'b>) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl<'b> PartialEq<Value> for BorrowedValue<'b>

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fn eq(&self, other: &Value) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl PartialEq for Value

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fn eq(&self, other: &Value) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Serialize for Value

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fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>
where __S: Serializer,

Serialize this value into the given Serde serializer. Read more
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impl StructuralPartialEq for Value

Auto Trait Implementations§

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impl !Freeze for Value

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impl RefUnwindSafe for Value

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impl Send for Value

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impl Sync for Value

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impl Unpin for Value

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impl UnwindSafe for Value

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<T> Pointable for T

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const ALIGN: usize

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T> ToString for T
where T: Display + ?Sized,

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fn to_string(&self) -> String

Converts the given value to a String. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<T> DeserializeOwned for T
where T: for<'de> Deserialize<'de>,