Enum nu_json::value::Value [−][src]
Represents a Hjson/JSON value
Variants
Represents a JSON null value
Bool(bool)
Represents a JSON Boolean
I64(i64)
Represents a JSON signed integer
U64(u64)
Represents a JSON unsigned integer
F64(f64)
Represents a JSON floating point number
String(String)
Represents a JSON string
Represents a JSON array
Represents a JSON object
Implementations
impl Value
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pub fn find<'a>(&'a self, key: &str) -> Option<&'a Value>
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If the Value
is an Object, returns the value associated with the provided key.
Otherwise, returns None.
pub fn find_path<'a>(&'a self, keys: &[&str]) -> Option<&'a Value>
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Attempts to get a nested Value Object for each key in keys
.
If any key is found not to exist, find_path will return None.
Otherwise, it will return the Value
associated with the final key.
pub fn pointer<'a>(&'a self, pointer: &str) -> Option<&'a Value>
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Looks up a value by a JSON Pointer.
JSON Pointer defines a string syntax for identifying a specific value within a JavaScript Object Notation (JSON) document.
A Pointer is a Unicode string with the reference tokens separated by /
.
Inside tokens /
is replaced by ~1
and ~
is replaced by ~0
. The
addressed value is returned and if there is no such value None
is
returned.
For more information read RFC6901.
pub fn search<'a>(&'a self, key: &str) -> Option<&'a Value>
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If the Value
is an Object, performs a depth-first search until
a value associated with the provided key is found. If no value is found
or the Value
is not an Object, returns None.
pub fn is_object(&self) -> bool
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Returns true if the Value
is an Object. Returns false otherwise.
pub fn as_object(&self) -> Option<&Map<String, Value>>
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If the Value
is an Object, returns the associated Map.
Returns None otherwise.
pub fn as_object_mut(&mut self) -> Option<&mut Map<String, Value>>
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If the Value
is an Object, returns the associated mutable Map.
Returns None otherwise.
pub fn is_array(&self) -> bool
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Returns true if the Value
is an Array. Returns false otherwise.
pub fn as_array(&self) -> Option<&Vec<Value>>
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If the Value
is an Array, returns the associated vector.
Returns None otherwise.
pub fn as_array_mut(&mut self) -> Option<&mut Vec<Value>>
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If the Value
is an Array, returns the associated mutable vector.
Returns None otherwise.
pub fn is_string(&self) -> bool
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Returns true if the Value
is a String. Returns false otherwise.
pub fn as_str(&self) -> Option<&str>
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If the Value
is a String, returns the associated str.
Returns None otherwise.
pub fn is_number(&self) -> bool
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Returns true if the Value
is a Number. Returns false otherwise.
pub fn is_i64(&self) -> bool
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Returns true if the Value
is a i64. Returns false otherwise.
pub fn is_u64(&self) -> bool
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Returns true if the Value
is a u64. Returns false otherwise.
pub fn is_f64(&self) -> bool
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Returns true if the Value
is a f64. Returns false otherwise.
pub fn as_i64(&self) -> Option<i64>
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If the Value
is a number, return or cast it to a i64.
Returns None otherwise.
pub fn as_u64(&self) -> Option<u64>
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If the Value
is a number, return or cast it to a u64.
Returns None otherwise.
pub fn as_f64(&self) -> Option<f64>
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If the Value
is a number, return or cast it to a f64.
Returns None otherwise.
pub fn is_boolean(&self) -> bool
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Returns true if the Value
is a Boolean. Returns false otherwise.
pub fn as_bool(&self) -> Option<bool>
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If the Value
is a Boolean, returns the associated bool.
Returns None otherwise.
pub fn is_null(&self) -> bool
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Returns true if the Value
is a Null. Returns false otherwise.
pub fn as_null(&self) -> Option<()>
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If the Value
is a Null, returns ().
Returns None otherwise.
Trait Implementations
impl Clone for Value
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impl Debug for Value
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impl<'de> Deserialize<'de> for Value
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fn deserialize<D>(deserializer: D) -> Result<Value, D::Error> where
D: Deserializer<'de>,
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D: Deserializer<'de>,
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. Read more
fn deserialize_any<V>(self, visitor: V) -> Result<V::Value, Error> where
V: Visitor<'de>,
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V: Visitor<'de>,
fn deserialize_option<V>(self, visitor: V) -> Result<V::Value, Error> where
V: Visitor<'de>,
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V: Visitor<'de>,
fn deserialize_enum<V>(
self,
_name: &str,
_variants: &'static [&'static str],
visitor: V
) -> Result<V::Value, Error> where
V: Visitor<'de>,
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self,
_name: &str,
_variants: &'static [&'static str],
visitor: V
) -> Result<V::Value, Error> where
V: Visitor<'de>,
fn deserialize_newtype_struct<V>(
self,
_name: &'static str,
visitor: V
) -> Result<V::Value, Self::Error> where
V: Visitor<'de>,
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self,
_name: &'static str,
visitor: V
) -> Result<V::Value, Self::Error> where
V: Visitor<'de>,
fn deserialize_bool<V>(self, visitor: V) -> Result<V::Value, Self::Error> where
V: Visitor<'de>,
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V: Visitor<'de>,
fn deserialize_i8<V>(self, visitor: V) -> Result<V::Value, Self::Error> where
V: Visitor<'de>,
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V: Visitor<'de>,
fn deserialize_i16<V>(self, visitor: V) -> Result<V::Value, Self::Error> where
V: Visitor<'de>,
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V: Visitor<'de>,
fn deserialize_i32<V>(self, visitor: V) -> Result<V::Value, Self::Error> where
V: Visitor<'de>,
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V: Visitor<'de>,
fn deserialize_i64<V>(self, visitor: V) -> Result<V::Value, Self::Error> where
V: Visitor<'de>,
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V: Visitor<'de>,
fn deserialize_i128<V>(self, visitor: V) -> Result<V::Value, Self::Error> where
V: Visitor<'de>,
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V: Visitor<'de>,
fn deserialize_u8<V>(self, visitor: V) -> Result<V::Value, Self::Error> where
V: Visitor<'de>,
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V: Visitor<'de>,
fn deserialize_u16<V>(self, visitor: V) -> Result<V::Value, Self::Error> where
V: Visitor<'de>,
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V: Visitor<'de>,
fn deserialize_u32<V>(self, visitor: V) -> Result<V::Value, Self::Error> where
V: Visitor<'de>,
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V: Visitor<'de>,
fn deserialize_u64<V>(self, visitor: V) -> Result<V::Value, Self::Error> where
V: Visitor<'de>,
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V: Visitor<'de>,
fn deserialize_u128<V>(self, visitor: V) -> Result<V::Value, Self::Error> where
V: Visitor<'de>,
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V: Visitor<'de>,
fn deserialize_f32<V>(self, visitor: V) -> Result<V::Value, Self::Error> where
V: Visitor<'de>,
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V: Visitor<'de>,
fn deserialize_f64<V>(self, visitor: V) -> Result<V::Value, Self::Error> where
V: Visitor<'de>,
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V: Visitor<'de>,
fn deserialize_char<V>(self, visitor: V) -> Result<V::Value, Self::Error> where
V: Visitor<'de>,
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V: Visitor<'de>,
fn deserialize_str<V>(self, visitor: V) -> Result<V::Value, Self::Error> where
V: Visitor<'de>,
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V: Visitor<'de>,
fn deserialize_string<V>(self, visitor: V) -> Result<V::Value, Self::Error> where
V: Visitor<'de>,
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V: Visitor<'de>,
fn deserialize_bytes<V>(self, visitor: V) -> Result<V::Value, Self::Error> where
V: Visitor<'de>,
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V: Visitor<'de>,
fn deserialize_byte_buf<V>(self, visitor: V) -> Result<V::Value, Self::Error> where
V: Visitor<'de>,
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V: Visitor<'de>,
fn deserialize_unit<V>(self, visitor: V) -> Result<V::Value, Self::Error> where
V: Visitor<'de>,
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V: Visitor<'de>,
fn deserialize_unit_struct<V>(
self,
name: &'static str,
visitor: V
) -> Result<V::Value, Self::Error> where
V: Visitor<'de>,
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self,
name: &'static str,
visitor: V
) -> Result<V::Value, Self::Error> where
V: Visitor<'de>,
fn deserialize_seq<V>(self, visitor: V) -> Result<V::Value, Self::Error> where
V: Visitor<'de>,
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V: Visitor<'de>,
fn deserialize_tuple<V>(
self,
len: usize,
visitor: V
) -> Result<V::Value, Self::Error> where
V: Visitor<'de>,
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self,
len: usize,
visitor: V
) -> Result<V::Value, Self::Error> where
V: Visitor<'de>,
fn deserialize_tuple_struct<V>(
self,
name: &'static str,
len: usize,
visitor: V
) -> Result<V::Value, Self::Error> where
V: Visitor<'de>,
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self,
name: &'static str,
len: usize,
visitor: V
) -> Result<V::Value, Self::Error> where
V: Visitor<'de>,
fn deserialize_map<V>(self, visitor: V) -> Result<V::Value, Self::Error> where
V: Visitor<'de>,
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V: Visitor<'de>,
fn deserialize_struct<V>(
self,
name: &'static str,
fields: &'static [&'static str],
visitor: V
) -> Result<V::Value, Self::Error> where
V: Visitor<'de>,
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self,
name: &'static str,
fields: &'static [&'static str],
visitor: V
) -> Result<V::Value, Self::Error> where
V: Visitor<'de>,
fn deserialize_identifier<V>(self, visitor: V) -> Result<V::Value, Self::Error> where
V: Visitor<'de>,
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V: Visitor<'de>,
fn deserialize_ignored_any<V>(self, visitor: V) -> Result<V::Value, Self::Error> where
V: Visitor<'de>,
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V: Visitor<'de>,
pub fn is_human_readable(&self) -> bool
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impl Display for Value
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impl FromStr for Value
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type Err = Error
The associated error which can be returned from parsing.
fn from_str(s: &str) -> Result<Value, Error>
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impl PartialEq<Value> for Value
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impl Serialize for Value
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impl StructuralPartialEq for Value
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Auto Trait Implementations
impl RefUnwindSafe for Value
impl Send for Value
impl Sync for Value
impl Unpin for Value
impl UnwindSafe for Value
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
pub fn borrow_mut(&mut self) -> &mut T
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impl<T> DeserializeOwned for T where
T: for<'de> Deserialize<'de>,
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T: for<'de> Deserialize<'de>,
impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T> ToJson for T where
T: Serialize + ?Sized,
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T: Serialize + ?Sized,
impl<T> ToOwned for T where
T: Clone,
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T: Clone,
type Owned = T
The resulting type after obtaining ownership.
pub fn to_owned(&self) -> T
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pub fn clone_into(&self, target: &mut T)
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impl<T> ToString for T where
T: Display + ?Sized,
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T: Display + ?Sized,
impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,