TomlValue

capability_3p

Enum TomlValue 

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pub enum TomlValue {
    String(String),
    Integer(i64),
    Float(f64),
    Boolean(bool),
    Datetime(Datetime),
    Array(Vec<Value>),
    Table(Map<String, Value>),
}
Expand description

Representation of a TOML value.

Variants§

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String(String)

Represents a TOML string

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Integer(i64)

Represents a TOML integer

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Float(f64)

Represents a TOML float

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Boolean(bool)

Represents a TOML boolean

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Datetime(Datetime)

Represents a TOML datetime

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Array(Vec<Value>)

Represents a TOML array

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Table(Map<String, Value>)

Represents a TOML table

Implementations§

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impl Value

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pub fn try_from<T>(value: T) -> Result<Value, Error>
where T: Serialize,

Convert a T into toml::Value which is an enum that can represent any valid TOML data.

This conversion can fail if T’s implementation of Serialize decides to fail, or if T contains a map with non-string keys.

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pub fn try_into<'de, T>(self) -> Result<T, Error>
where T: Deserialize<'de>,

Interpret a toml::Value as an instance of type T.

This conversion can fail if the structure of the Value does not match the structure expected by T, for example if T is a struct type but the Value contains something other than a TOML table. It can also fail if the structure is correct but T’s implementation of Deserialize decides that something is wrong with the data, for example required struct fields are missing from the TOML map or some number is too big to fit in the expected primitive type.

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pub fn get<I>(&self, index: I) -> Option<&Value>
where I: Index,

Index into a TOML array or map. A string index can be used to access a value in a map, and a usize index can be used to access an element of an array.

Returns None if the type of self does not match the type of the index, for example if the index is a string and self is an array or a number. Also returns None if the given key does not exist in the map or the given index is not within the bounds of the array.

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pub fn get_mut<I>(&mut self, index: I) -> Option<&mut Value>
where I: Index,

Mutably index into a TOML array or map. A string index can be used to access a value in a map, and a usize index can be used to access an element of an array.

Returns None if the type of self does not match the type of the index, for example if the index is a string and self is an array or a number. Also returns None if the given key does not exist in the map or the given index is not within the bounds of the array.

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pub fn as_integer(&self) -> Option<i64>

Extracts the integer value if it is an integer.

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pub fn is_integer(&self) -> bool

Tests whether this value is an integer.

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pub fn as_float(&self) -> Option<f64>

Extracts the float value if it is a float.

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pub fn is_float(&self) -> bool

Tests whether this value is a float.

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pub fn as_bool(&self) -> Option<bool>

Extracts the boolean value if it is a boolean.

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pub fn is_bool(&self) -> bool

Tests whether this value is a boolean.

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pub fn as_str(&self) -> Option<&str>

Extracts the string of this value if it is a string.

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pub fn is_str(&self) -> bool

Tests if this value is a string.

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pub fn as_datetime(&self) -> Option<&Datetime>

Extracts the datetime value if it is a datetime.

Note that a parsed TOML value will only contain ISO 8601 dates. An example date is:

1979-05-27T07:32:00Z
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pub fn is_datetime(&self) -> bool

Tests whether this value is a datetime.

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pub fn as_array(&self) -> Option<&Vec<Value>>

Extracts the array value if it is an array.

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pub fn as_array_mut(&mut self) -> Option<&mut Vec<Value>>

Extracts the array value if it is an array.

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pub fn is_array(&self) -> bool

Tests whether this value is an array.

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pub fn as_table(&self) -> Option<&Map<String, Value>>

Extracts the table value if it is a table.

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pub fn as_table_mut(&mut self) -> Option<&mut Map<String, Value>>

Extracts the table value if it is a table.

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pub fn is_table(&self) -> bool

Tests whether this value is a table.

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

Tests whether this and another value have the same type.

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pub fn type_str(&self) -> &'static str

Returns a human-readable representation of the type of this value.

Trait Implementations§

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impl Clone for Value

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fn clone(&self) -> Value

Returns a duplicate 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<(), Error>

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<Value, <D as Deserializer<'de>>::Error>
where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more
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impl<'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 as Visitor<'de>>::Value, 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_enum<V>( self, _name: &'static str, _variants: &'static [&'static str], visitor: V, ) -> Result<<V as Visitor<'de>>::Value, 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_option<V>( self, visitor: V, ) -> Result<<V as Visitor<'de>>::Value, 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 as Visitor<'de>>::Value, 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_bool<V>( self, visitor: V, ) -> Result<<V as Visitor<'de>>::Value, <Value as Deserializer<'de>>::Error>
where V: Visitor<'de>,

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

Hint that the Deserialize type is expecting a u8 value.
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fn deserialize_u16<V>( self, visitor: V, ) -> Result<<V as Visitor<'de>>::Value, <Value as Deserializer<'de>>::Error>
where V: Visitor<'de>,

Hint that the Deserialize type is expecting a u16 value.
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fn deserialize_u32<V>( self, visitor: V, ) -> Result<<V as Visitor<'de>>::Value, <Value as Deserializer<'de>>::Error>
where V: Visitor<'de>,

Hint that the Deserialize type is expecting a u32 value.
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fn deserialize_u64<V>( self, visitor: V, ) -> Result<<V as Visitor<'de>>::Value, <Value as Deserializer<'de>>::Error>
where V: Visitor<'de>,

Hint that the Deserialize type is expecting a u64 value.
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fn deserialize_i8<V>( self, visitor: V, ) -> Result<<V as Visitor<'de>>::Value, <Value as Deserializer<'de>>::Error>
where V: Visitor<'de>,

Hint that the Deserialize type is expecting an i8 value.
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fn deserialize_i16<V>( self, visitor: V, ) -> Result<<V as Visitor<'de>>::Value, <Value as Deserializer<'de>>::Error>
where V: Visitor<'de>,

Hint that the Deserialize type is expecting an i16 value.
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fn deserialize_i32<V>( self, visitor: V, ) -> Result<<V as Visitor<'de>>::Value, <Value as Deserializer<'de>>::Error>
where V: Visitor<'de>,

Hint that the Deserialize type is expecting an i32 value.
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fn deserialize_i64<V>( self, visitor: V, ) -> Result<<V as Visitor<'de>>::Value, <Value as Deserializer<'de>>::Error>
where V: Visitor<'de>,

Hint that the Deserialize type is expecting an i64 value.
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fn deserialize_f32<V>( self, visitor: V, ) -> Result<<V as Visitor<'de>>::Value, <Value 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 as Visitor<'de>>::Value, <Value 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 as Visitor<'de>>::Value, <Value as Deserializer<'de>>::Error>
where V: Visitor<'de>,

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

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

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

Hint that the Deserialize type is expecting a map of key-value pairs.
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fn deserialize_unit_struct<V>( self, name: &'static str, visitor: V, ) -> Result<<V as Visitor<'de>>::Value, <Value 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 as Visitor<'de>>::Value, <Value 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_struct<V>( self, name: &'static str, fields: &'static [&'static str], visitor: V, ) -> Result<<V as Visitor<'de>>::Value, <Value as Deserializer<'de>>::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_tuple<V>( self, len: usize, visitor: V, ) -> Result<<V as Visitor<'de>>::Value, <Value 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_ignored_any<V>( self, visitor: V, ) -> Result<<V as Visitor<'de>>::Value, <Value 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_identifier<V>( self, visitor: V, ) -> Result<<V as Visitor<'de>>::Value, <Value 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_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<(), Error>

Formats the value using the given formatter. Read more
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impl<'a> From<&'a str> for Value

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fn from(val: &'a str) -> Value

Converts to this type from the input type.
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impl<S, V> From<BTreeMap<S, V>> for Value
where S: Into<String>, V: Into<Value>,

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fn from(val: BTreeMap<S, V>) -> Value

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

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fn from(val: Datetime) -> Value

Converts to this type from the input type.
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impl<S, V> From<HashMap<S, V>> for Value
where S: Into<String> + Hash + Eq, V: Into<Value>,

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fn from(val: HashMap<S, V>) -> Value

Converts to this type from the input type.
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impl From<Map<String, Value>> for Value

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fn from(val: Map<String, Value>) -> Value

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

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fn from(val: String) -> Value

Converts to this type from the input type.
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impl<V> From<Vec<V>> for Value
where V: Into<Value>,

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fn from(val: Vec<V>) -> Value

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

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fn from(val: bool) -> Value

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

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fn from(val: f32) -> Value

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

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fn from(val: f64) -> Value

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

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fn from(val: i32) -> Value

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

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fn from(val: i64) -> Value

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

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fn from(val: i8) -> Value

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

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fn from(val: u32) -> Value

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

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fn from(val: u8) -> Value

Converts to this type from the input type.
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impl FromStr for Value

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type Err = Error

The associated error which can be returned from parsing.
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fn from_str(s: &str) -> Result<Value, <Value as FromStr>::Err>

Parses a string s to return a value of this type. Read more
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impl<I> Index<I> for Value
where I: Index,

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type Output = Value

The returned type after indexing.
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fn index(&self, index: I) -> &Value

Performs the indexing (container[index]) operation. Read more
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impl<I> IndexMut<I> for Value
where I: Index,

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fn index_mut(&mut self, index: I) -> &mut Value

Performs the mutable indexing (container[index]) operation. Read more
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impl IntoDeserializer<'_, Error> 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) -> Value

Convert this value into a deserializer.
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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 as Serializer>::Ok, <S as Serializer>::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

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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> Downcast for T
where T: Any,

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fn into_any(self: Box<T>) -> Box<dyn Any>

Convert Box<dyn Trait> (where Trait: Downcast) to Box<dyn Any>. Box<dyn Any> can then be further downcast into Box<ConcreteType> where ConcreteType implements Trait.
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fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>

Convert Rc<Trait> (where Trait: Downcast) to Rc<Any>. Rc<Any> can then be further downcast into Rc<ConcreteType> where ConcreteType implements Trait.
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fn as_any(&self) -> &(dyn Any + 'static)

Convert &Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &Any’s vtable from &Trait’s.
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Convert &mut Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &mut Any’s vtable from &mut Trait’s.
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impl<T> DowncastSync for T
where T: Any + Send + Sync,

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fn into_any_arc(self: Arc<T>) -> Arc<dyn Any + Sync + Send>

Convert Arc<Trait> (where Trait: Downcast) to Arc<Any>. Arc<Any> can then be further downcast into Arc<ConcreteType> where ConcreteType implements Trait.
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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> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self> ⓘ

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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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).

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where T: Any,

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Convert self into the appropriate boxed form.
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Convert self into the appropriate boxed form.
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Convert self into the appropriate boxed form.
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where A: Array<Item = T>,

Converts self into a collection.
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where F: FnMut(T) -> U, A: Array<Item = U>,

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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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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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👎Deprecated since 1.0.1: renamed to resetting() due to conflicts with Vec::clear(). The clear() method will be removed in a future release.

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Create a new Policy that returns Action::Follow only if self and other return Action::Follow. Read more
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