Trait value_trait::ValueAccess

pub trait ValueAccess: Sized {
    type Target: ValueAccess;
    type Key: Hash + Eq;
    type Array: Array<Element = Self::Target>;
    type Object: Object<Key = Self::Key, Element = Self::Target>;

    // Required methods
    fn as_bool(&self) -> Option<bool>;
    fn as_i64(&self) -> Option<i64>;
    fn as_u64(&self) -> Option<u64>;
    fn as_f64(&self) -> Option<f64>;
    fn as_str(&self) -> Option<&str>;
    fn as_array(&self) -> Option<&Self::Array>;
    fn as_object(&self) -> Option<&Self::Object>;

    // Provided methods
    fn get<Q>(&self, k: &Q) -> Option<&Self::Target>
       where Self::Key: Borrow<Q> + Hash + Eq,
             Q: Hash + Eq + Ord + ?Sized { ... }
    fn contains_key<Q>(&self, k: &Q) -> bool
       where Self::Key: Borrow<Q> + Hash + Eq,
             Q: Hash + Eq + Ord + ?Sized { ... }
    fn get_idx(&self, i: usize) -> Option<&Self::Target> { ... }
    fn get_bool<Q>(&self, k: &Q) -> Option<bool>
       where Self::Key: Borrow<Q> + Hash + Eq,
             Q: Hash + Eq + Ord + ?Sized { ... }
    fn as_i128(&self) -> Option<i128> { ... }
    fn get_i128<Q>(&self, k: &Q) -> Option<i128>
       where Self::Key: Borrow<Q> + Hash + Eq,
             Q: Hash + Eq + Ord + ?Sized { ... }
    fn get_i64<Q>(&self, k: &Q) -> Option<i64>
       where Self::Key: Borrow<Q> + Hash + Eq,
             Q: Hash + Eq + Ord + ?Sized { ... }
    fn as_i32(&self) -> Option<i32> { ... }
    fn get_i32<Q>(&self, k: &Q) -> Option<i32>
       where Self::Key: Borrow<Q> + Hash + Eq,
             Q: Hash + Eq + Ord + ?Sized { ... }
    fn as_i16(&self) -> Option<i16> { ... }
    fn get_i16<Q>(&self, k: &Q) -> Option<i16>
       where Self::Key: Borrow<Q> + Hash + Eq,
             Q: Hash + Eq + Ord + ?Sized { ... }
    fn as_i8(&self) -> Option<i8> { ... }
    fn get_i8<Q>(&self, k: &Q) -> Option<i8>
       where Self::Key: Borrow<Q> + Hash + Eq,
             Q: Hash + Eq + Ord + ?Sized { ... }
    fn as_u128(&self) -> Option<u128> { ... }
    fn get_u128<Q>(&self, k: &Q) -> Option<u128>
       where Self::Key: Borrow<Q> + Hash + Eq,
             Q: Hash + Eq + Ord + ?Sized { ... }
    fn get_u64<Q>(&self, k: &Q) -> Option<u64>
       where Self::Key: Borrow<Q> + Hash + Eq,
             Q: Hash + Eq + Ord + ?Sized { ... }
    fn as_usize(&self) -> Option<usize> { ... }
    fn get_usize<Q>(&self, k: &Q) -> Option<usize>
       where Self::Key: Borrow<Q> + Hash + Eq,
             Q: Hash + Eq + Ord + ?Sized { ... }
    fn as_u32(&self) -> Option<u32> { ... }
    fn get_u32<Q>(&self, k: &Q) -> Option<u32>
       where Self::Key: Borrow<Q> + Hash + Eq,
             Q: Hash + Eq + Ord + ?Sized { ... }
    fn as_u16(&self) -> Option<u16> { ... }
    fn get_u16<Q>(&self, k: &Q) -> Option<u16>
       where Self::Key: Borrow<Q> + Hash + Eq,
             Q: Hash + Eq + Ord + ?Sized { ... }
    fn as_u8(&self) -> Option<u8> { ... }
    fn get_u8<Q>(&self, k: &Q) -> Option<u8>
       where Self::Key: Borrow<Q> + Hash + Eq,
             Q: Hash + Eq + Ord + ?Sized { ... }
    fn get_f64<Q>(&self, k: &Q) -> Option<f64>
       where Self::Key: Borrow<Q> + Hash + Eq,
             Q: Hash + Eq + Ord + ?Sized { ... }
    fn cast_f64(&self) -> Option<f64> { ... }
    fn as_f32(&self) -> Option<f32> { ... }
    fn get_f32<Q>(&self, k: &Q) -> Option<f32>
       where Self::Key: Borrow<Q> + Hash + Eq,
             Q: Hash + Eq + Ord + ?Sized { ... }
    fn as_char(&self) -> Option<char> { ... }
    fn get_str<Q>(&self, k: &Q) -> Option<&str>
       where Self::Key: Borrow<Q> + Hash + Eq,
             Q: Hash + Eq + Ord + ?Sized { ... }
    fn get_array<Q>(
        &self,
        k: &Q,
    ) -> Option<&<<Self as ValueAccess>::Target as ValueAccess>::Array>
       where Self::Key: Borrow<Q> + Hash + Eq,
             Q: Hash + Eq + Ord + ?Sized { ... }
    fn get_object<Q>(
        &self,
        k: &Q,
    ) -> Option<&<<Self as ValueAccess>::Target as ValueAccess>::Object>
       where Self::Key: Borrow<Q> + Hash + Eq,
             Q: Hash + Eq + Ord + ?Sized { ... }
}

Trait to allow accessing data inside a Value

Required Associated Types

type Target: ValueAccess

The target for nested lookups

type Key: Hash + Eq

The type for Objects

type Array: Array<Element = Self::Target>

The array structure

type Object: Object<Key = Self::Key, Element = Self::Target>

The object structure

Required Methods

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

Tries to represent the value as a bool

fn as_i64(&self) -> Option<i64>

Tries to represent the value as an i64

fn as_u64(&self) -> Option<u64>

Tries to represent the value as an u64

fn as_f64(&self) -> Option<f64>

Tries to represent the value as a f64

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

Tries to represent the value as a &str

fn as_array(&self) -> Option<&Self::Array>

Tries to represent the value as an array and returns a refference to it

fn as_object(&self) -> Option<&Self::Object>

Tries to represent the value as an object and returns a refference to it

Provided Methods

fn get<Q>(&self, k: &Q) -> Option<&Self::Target>

where Self::Key: Borrow<Q> + Hash + Eq, Q: Hash + Eq + Ord + ?Sized,

Gets a ref to a value based on a key, returns None if the current Value isn’t an Object or doesn’t contain the key it was asked for.

fn contains_key<Q>(&self, k: &Q) -> bool

where Self::Key: Borrow<Q> + Hash + Eq, Q: Hash + Eq + Ord + ?Sized,

Checks if a Value contains a given key. This will return flase if Value isn’t an object

fn get_idx(&self, i: usize) -> Option<&Self::Target>

Gets a ref to a value based on n index, returns None if the current Value isn’t an Array or doesn’t contain the index it was asked for.

fn get_bool<Q>(&self, k: &Q) -> Option<bool>

where Self::Key: Borrow<Q> + Hash + Eq, Q: Hash + Eq + Ord + ?Sized,

Tries to get an element of an object as a bool

fn as_i128(&self) -> Option<i128>

Tries to represent the value as an i128

fn get_i128<Q>(&self, k: &Q) -> Option<i128>

where Self::Key: Borrow<Q> + Hash + Eq, Q: Hash + Eq + Ord + ?Sized,

Tries to get an element of an object as a i128

fn get_i64<Q>(&self, k: &Q) -> Option<i64>

where Self::Key: Borrow<Q> + Hash + Eq, Q: Hash + Eq + Ord + ?Sized,

Tries to get an element of an object as a i64

fn as_i32(&self) -> Option<i32>

Tries to represent the value as an i32

fn get_i32<Q>(&self, k: &Q) -> Option<i32>

where Self::Key: Borrow<Q> + Hash + Eq, Q: Hash + Eq + Ord + ?Sized,

Tries to get an element of an object as a i32

fn as_i16(&self) -> Option<i16>

Tries to represent the value as an i16

fn get_i16<Q>(&self, k: &Q) -> Option<i16>

where Self::Key: Borrow<Q> + Hash + Eq, Q: Hash + Eq + Ord + ?Sized,

Tries to get an element of an object as a i16

fn as_i8(&self) -> Option<i8>

Tries to represent the value as an i8

fn get_i8<Q>(&self, k: &Q) -> Option<i8>

where Self::Key: Borrow<Q> + Hash + Eq, Q: Hash + Eq + Ord + ?Sized,

Tries to get an element of an object as a i8

fn as_u128(&self) -> Option<u128>

Tries to represent the value as an u128

fn get_u128<Q>(&self, k: &Q) -> Option<u128>

where Self::Key: Borrow<Q> + Hash + Eq, Q: Hash + Eq + Ord + ?Sized,

Tries to get an element of an object as a u128

fn get_u64<Q>(&self, k: &Q) -> Option<u64>

where Self::Key: Borrow<Q> + Hash + Eq, Q: Hash + Eq + Ord + ?Sized,

Tries to get an element of an object as a u64

fn as_usize(&self) -> Option<usize>

Tries to represent the value as an usize

fn get_usize<Q>(&self, k: &Q) -> Option<usize>

where Self::Key: Borrow<Q> + Hash + Eq, Q: Hash + Eq + Ord + ?Sized,

Tries to get an element of an object as a usize

fn as_u32(&self) -> Option<u32>

Tries to represent the value as an u32

fn get_u32<Q>(&self, k: &Q) -> Option<u32>

where Self::Key: Borrow<Q> + Hash + Eq, Q: Hash + Eq + Ord + ?Sized,

Tries to get an element of an object as a u32

fn as_u16(&self) -> Option<u16>

Tries to represent the value as an u16

fn get_u16<Q>(&self, k: &Q) -> Option<u16>

where Self::Key: Borrow<Q> + Hash + Eq, Q: Hash + Eq + Ord + ?Sized,

Tries to get an element of an object as a u16

fn as_u8(&self) -> Option<u8>

Tries to represent the value as an u8

fn get_u8<Q>(&self, k: &Q) -> Option<u8>

where Self::Key: Borrow<Q> + Hash + Eq, Q: Hash + Eq + Ord + ?Sized,

Tries to get an element of an object as a u8

fn get_f64<Q>(&self, k: &Q) -> Option<f64>

where Self::Key: Borrow<Q> + Hash + Eq, Q: Hash + Eq + Ord + ?Sized,

Tries to get an element of an object as a f64

fn cast_f64(&self) -> Option<f64>

Casts the current value to a f64 if possible, this will turn integer values into floats.

fn as_f32(&self) -> Option<f32>

Tries to represent the value as a f32

fn get_f32<Q>(&self, k: &Q) -> Option<f32>

where Self::Key: Borrow<Q> + Hash + Eq, Q: Hash + Eq + Ord + ?Sized,

Tries to get an element of an object as a f32

fn as_char(&self) -> Option<char>

Tries to represent the value as a Char

fn get_str<Q>(&self, k: &Q) -> Option<&str>

where Self::Key: Borrow<Q> + Hash + Eq, Q: Hash + Eq + Ord + ?Sized,

Tries to get an element of an object as a str

fn get_array<Q>( &self, k: &Q, ) -> Option<&<<Self as ValueAccess>::Target as ValueAccess>::Array>

where Self::Key: Borrow<Q> + Hash + Eq, Q: Hash + Eq + Ord + ?Sized,

Tries to get an element of an object as a array

fn get_object<Q>( &self, k: &Q, ) -> Option<&<<Self as ValueAccess>::Target as ValueAccess>::Object>

where Self::Key: Borrow<Q> + Hash + Eq, Q: Hash + Eq + Ord + ?Sized,

Tries to get an element of an object as a object

Object Safety

This trait is not object safe.

Implementations on Foreign Types

impl<V> ValueAccess for Option<V>

where V: ValueAccess,

type Target = <V as ValueAccess>::Target

type Key = <V as ValueAccess>::Key

type Array = <V as ValueAccess>::Array

type Object = <V as ValueAccess>::Object

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

fn as_i64(&self) -> Option<i64>

fn as_u64(&self) -> Option<u64>

fn as_f64(&self) -> Option<f64>

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

fn as_array(&self) -> Option<&Self::Array>

fn as_object(&self) -> Option<&Self::Object>

impl<V> ValueAccess for &V

where V: ValueAccess,

type Target = <V as ValueAccess>::Target

type Key = <V as ValueAccess>::Key

type Array = <V as ValueAccess>::Array

type Object = <V as ValueAccess>::Object

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

fn as_i64(&self) -> Option<i64>

fn as_u64(&self) -> Option<u64>

fn as_f64(&self) -> Option<f64>

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

fn as_array(&self) -> Option<&Self::Array>

fn as_object(&self) -> Option<&Self::Object>

impl<V, E> ValueAccess for Result<V, E>

where V: ValueAccess,

type Target = <V as ValueAccess>::Target

type Key = <V as ValueAccess>::Key

type Array = <V as ValueAccess>::Array

type Object = <V as ValueAccess>::Object

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

fn as_i64(&self) -> Option<i64>

fn as_u64(&self) -> Option<u64>

fn as_f64(&self) -> Option<f64>

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

fn as_array(&self) -> Option<&Self::Array>

fn as_object(&self) -> Option<&Self::Object>

Implementors

impl ValueAccess for StaticNode

type Target = StaticNode

type Key = String

type Array = Vec<StaticNode>

type Object = HashMap<String, StaticNode>