Trait value_trait::ValueAccess
source · [−]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>;
Show 78 methods
fn value_type(&self) -> ValueType;
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>;
fn try_as_bool(&self) -> Result<bool, TryTypeError> { ... }
fn as_i128(&self) -> Option<i128> { ... }
fn try_as_i128(&self) -> Result<i128, TryTypeError> { ... }
fn try_as_i64(&self) -> Result<i64, TryTypeError> { ... }
fn as_i32(&self) -> Option<i32> { ... }
fn try_as_i32(&self) -> Result<i32, TryTypeError> { ... }
fn as_i16(&self) -> Option<i16> { ... }
fn try_as_i16(&self) -> Result<i16, TryTypeError> { ... }
fn as_i8(&self) -> Option<i8> { ... }
fn try_as_i8(&self) -> Result<i8, TryTypeError> { ... }
fn as_u128(&self) -> Option<u128> { ... }
fn try_as_u128(&self) -> Result<u128, TryTypeError> { ... }
fn try_as_u64(&self) -> Result<u64, TryTypeError> { ... }
fn as_usize(&self) -> Option<usize> { ... }
fn try_as_usize(&self) -> Result<usize, TryTypeError> { ... }
fn as_u32(&self) -> Option<u32> { ... }
fn try_as_u32(&self) -> Result<u32, TryTypeError> { ... }
fn as_u16(&self) -> Option<u16> { ... }
fn try_as_u16(&self) -> Result<u16, TryTypeError> { ... }
fn as_u8(&self) -> Option<u8> { ... }
fn try_as_u8(&self) -> Result<u8, TryTypeError> { ... }
fn try_as_f64(&self) -> Result<f64, TryTypeError> { ... }
fn cast_f64(&self) -> Option<f64> { ... }
fn try_cast_f64(&self) -> Result<f64, TryTypeError> { ... }
fn as_f32(&self) -> Option<f32> { ... }
fn try_as_f32(&self) -> Result<f32, TryTypeError> { ... }
fn try_as_str(&self) -> Result<&str, TryTypeError> { ... }
fn as_char(&self) -> Option<char> { ... }
fn try_as_char(&self) -> Result<char, TryTypeError> { ... }
fn try_as_array(&self) -> Result<&Self::Array, TryTypeError> { ... }
fn try_as_object(&self) -> Result<&Self::Object, TryTypeError> { ... }
fn get<Q: ?Sized>(&self, k: &Q) -> Option<&Self::Target>
where
Self::Key: Borrow<Q> + Hash + Eq,
Q: Hash + Eq + Ord,
{ ... }
fn try_get<Q: ?Sized>(
&self,
k: &Q
) -> Result<Option<&Self::Target>, TryTypeError>
where
Self::Key: Borrow<Q> + Hash + Eq,
Q: Hash + Eq + Ord,
{ ... }
fn contains_key<Q: ?Sized>(&self, k: &Q) -> bool
where
Self::Key: Borrow<Q> + Hash + Eq,
Q: Hash + Eq + Ord,
{ ... }
fn get_idx(&self, i: usize) -> Option<&Self::Target> { ... }
fn try_get_idx(
&self,
i: usize
) -> Result<Option<&Self::Target>, TryTypeError> { ... }
fn get_bool<Q: ?Sized>(&self, k: &Q) -> Option<bool>
where
Self::Key: Borrow<Q> + Hash + Eq,
Q: Hash + Eq + Ord,
{ ... }
fn try_get_bool<Q: ?Sized>(
&self,
k: &Q
) -> Result<Option<bool>, TryTypeError>
where
Self::Key: Borrow<Q> + Hash + Eq,
Q: Hash + Eq + Ord,
{ ... }
fn get_i128<Q: ?Sized>(&self, k: &Q) -> Option<i128>
where
Self::Key: Borrow<Q> + Hash + Eq,
Q: Hash + Eq + Ord,
{ ... }
fn try_get_i128<Q: ?Sized>(
&self,
k: &Q
) -> Result<Option<i128>, TryTypeError>
where
Self::Key: Borrow<Q> + Hash + Eq,
Q: Hash + Eq + Ord,
{ ... }
fn get_i64<Q: ?Sized>(&self, k: &Q) -> Option<i64>
where
Self::Key: Borrow<Q> + Hash + Eq,
Q: Hash + Eq + Ord,
{ ... }
fn try_get_i64<Q: ?Sized>(&self, k: &Q) -> Result<Option<i64>, TryTypeError>
where
Self::Key: Borrow<Q> + Hash + Eq,
Q: Hash + Eq + Ord,
{ ... }
fn get_i32<Q: ?Sized>(&self, k: &Q) -> Option<i32>
where
Self::Key: Borrow<Q> + Hash + Eq,
Q: Hash + Eq + Ord,
{ ... }
fn try_get_i32<Q: ?Sized>(&self, k: &Q) -> Result<Option<i32>, TryTypeError>
where
Self::Key: Borrow<Q> + Hash + Eq,
Q: Hash + Eq + Ord,
{ ... }
fn get_i16<Q: ?Sized>(&self, k: &Q) -> Option<i16>
where
Self::Key: Borrow<Q> + Hash + Eq,
Q: Hash + Eq + Ord,
{ ... }
fn try_get_i16<Q: ?Sized>(&self, k: &Q) -> Result<Option<i16>, TryTypeError>
where
Self::Key: Borrow<Q> + Hash + Eq,
Q: Hash + Eq + Ord,
{ ... }
fn get_i8<Q: ?Sized>(&self, k: &Q) -> Option<i8>
where
Self::Key: Borrow<Q> + Hash + Eq,
Q: Hash + Eq + Ord,
{ ... }
fn try_get_i8<Q: ?Sized>(&self, k: &Q) -> Result<Option<i8>, TryTypeError>
where
Self::Key: Borrow<Q> + Hash + Eq,
Q: Hash + Eq + Ord,
{ ... }
fn get_u128<Q: ?Sized>(&self, k: &Q) -> Option<u128>
where
Self::Key: Borrow<Q> + Hash + Eq,
Q: Hash + Eq + Ord,
{ ... }
fn try_get_u128<Q: ?Sized>(
&self,
k: &Q
) -> Result<Option<u128>, TryTypeError>
where
Self::Key: Borrow<Q> + Hash + Eq,
Q: Hash + Eq + Ord,
{ ... }
fn get_u64<Q: ?Sized>(&self, k: &Q) -> Option<u64>
where
Self::Key: Borrow<Q> + Hash + Eq,
Q: Hash + Eq + Ord,
{ ... }
fn try_get_u64<Q: ?Sized>(&self, k: &Q) -> Result<Option<u64>, TryTypeError>
where
Self::Key: Borrow<Q> + Hash + Eq,
Q: Hash + Eq + Ord,
{ ... }
fn get_usize<Q: ?Sized>(&self, k: &Q) -> Option<usize>
where
Self::Key: Borrow<Q> + Hash + Eq,
Q: Hash + Eq + Ord,
{ ... }
fn try_get_usize<Q: ?Sized>(
&self,
k: &Q
) -> Result<Option<usize>, TryTypeError>
where
Self::Key: Borrow<Q> + Hash + Eq,
Q: Hash + Eq + Ord,
{ ... }
fn get_u32<Q: ?Sized>(&self, k: &Q) -> Option<u32>
where
Self::Key: Borrow<Q> + Hash + Eq,
Q: Hash + Eq + Ord,
{ ... }
fn try_get_u32<Q: ?Sized>(&self, k: &Q) -> Result<Option<u32>, TryTypeError>
where
Self::Key: Borrow<Q> + Hash + Eq,
Q: Hash + Eq + Ord,
{ ... }
fn get_u16<Q: ?Sized>(&self, k: &Q) -> Option<u16>
where
Self::Key: Borrow<Q> + Hash + Eq,
Q: Hash + Eq + Ord,
{ ... }
fn try_get_u16<Q: ?Sized>(&self, k: &Q) -> Result<Option<u16>, TryTypeError>
where
Self::Key: Borrow<Q> + Hash + Eq,
Q: Hash + Eq + Ord,
{ ... }
fn get_u8<Q: ?Sized>(&self, k: &Q) -> Option<u8>
where
Self::Key: Borrow<Q> + Hash + Eq,
Q: Hash + Eq + Ord,
{ ... }
fn try_get_u8<Q: ?Sized>(&self, k: &Q) -> Result<Option<u8>, TryTypeError>
where
Self::Key: Borrow<Q> + Hash + Eq,
Q: Hash + Eq + Ord,
{ ... }
fn get_f64<Q: ?Sized>(&self, k: &Q) -> Option<f64>
where
Self::Key: Borrow<Q> + Hash + Eq,
Q: Hash + Eq + Ord,
{ ... }
fn try_get_f64<Q: ?Sized>(&self, k: &Q) -> Result<Option<f64>, TryTypeError>
where
Self::Key: Borrow<Q> + Hash + Eq,
Q: Hash + Eq + Ord,
{ ... }
fn get_f32<Q: ?Sized>(&self, k: &Q) -> Option<f32>
where
Self::Key: Borrow<Q> + Hash + Eq,
Q: Hash + Eq + Ord,
{ ... }
fn try_get_f32<Q: ?Sized>(&self, k: &Q) -> Result<Option<f32>, TryTypeError>
where
Self::Key: Borrow<Q> + Hash + Eq,
Q: Hash + Eq + Ord,
{ ... }
fn get_str<Q: ?Sized>(&self, k: &Q) -> Option<&str>
where
Self::Key: Borrow<Q> + Hash + Eq,
Q: Hash + Eq + Ord,
{ ... }
fn try_get_str<Q: ?Sized>(&self, k: &Q) -> Result<Option<&str>, TryTypeError>
where
Self::Key: Borrow<Q> + Hash + Eq,
Q: Hash + Eq + Ord,
{ ... }
fn get_array<Q: ?Sized>(
&self,
k: &Q
) -> Option<&<<Self as ValueAccess>::Target as ValueAccess>::Array>
where
Self::Key: Borrow<Q> + Hash + Eq,
Q: Hash + Eq + Ord,
{ ... }
fn try_get_array<Q: ?Sized>(
&self,
k: &Q
) -> Result<Option<&<<Self as ValueAccess>::Target as ValueAccess>::Array>, TryTypeError>
where
Self::Key: Borrow<Q> + Hash + Eq,
Q: Hash + Eq + Ord,
{ ... }
fn get_object<Q: ?Sized>(
&self,
k: &Q
) -> Option<&<<Self as ValueAccess>::Target as ValueAccess>::Object>
where
Self::Key: Borrow<Q> + Hash + Eq,
Q: Hash + Eq + Ord,
{ ... }
fn try_get_object<Q: ?Sized>(
&self,
k: &Q
) -> Result<Option<&<<Self as ValueAccess>::Target as ValueAccess>::Object>, TryTypeError>
where
Self::Key: Borrow<Q> + Hash + Eq,
Q: Hash + Eq + Ord,
{ ... }
}Expand description
Trait to allow accessing data inside a Value
Required Associated Types
type Target: ValueAccess
type Target: ValueAccess
The target for nested lookups
Required Methods
fn value_type(&self) -> ValueType
fn value_type(&self) -> ValueType
Gets the type of the current value
Tries to represent the value as an array and returns a refference to it
Provided Methods
fn try_as_bool(&self) -> Result<bool, TryTypeError>
fn try_as_bool(&self) -> Result<bool, TryTypeError>
fn try_as_i128(&self) -> Result<i128, TryTypeError>
fn try_as_i128(&self) -> Result<i128, TryTypeError>
fn try_as_i64(&self) -> Result<i64, TryTypeError>
fn try_as_i64(&self) -> Result<i64, TryTypeError>
fn try_as_i32(&self) -> Result<i32, TryTypeError>
fn try_as_i32(&self) -> Result<i32, TryTypeError>
fn try_as_i16(&self) -> Result<i16, TryTypeError>
fn try_as_i16(&self) -> Result<i16, TryTypeError>
fn try_as_i8(&self) -> Result<i8, TryTypeError>
fn try_as_i8(&self) -> Result<i8, TryTypeError>
fn try_as_u128(&self) -> Result<u128, TryTypeError>
fn try_as_u128(&self) -> Result<u128, TryTypeError>
fn try_as_u64(&self) -> Result<u64, TryTypeError>
fn try_as_u64(&self) -> Result<u64, TryTypeError>
fn try_as_usize(&self) -> Result<usize, TryTypeError>
fn try_as_usize(&self) -> Result<usize, TryTypeError>
fn try_as_u32(&self) -> Result<u32, TryTypeError>
fn try_as_u32(&self) -> Result<u32, TryTypeError>
fn try_as_u16(&self) -> Result<u16, TryTypeError>
fn try_as_u16(&self) -> Result<u16, TryTypeError>
fn try_as_u8(&self) -> Result<u8, TryTypeError>
fn try_as_u8(&self) -> Result<u8, TryTypeError>
fn try_as_f64(&self) -> Result<f64, TryTypeError>
fn try_as_f64(&self) -> Result<f64, TryTypeError>
Casts the current value to a f64 if possible, this will turn integer values into floats.
fn try_cast_f64(&self) -> Result<f64, TryTypeError>
fn try_cast_f64(&self) -> Result<f64, TryTypeError>
Tries to Casts the current value to a f64 if possible, this will turn integer values into floats and error if it isn’t possible
Errors
if the requested type doesn’t match the actual type
fn try_as_f32(&self) -> Result<f32, TryTypeError>
fn try_as_f32(&self) -> Result<f32, TryTypeError>
fn try_as_str(&self) -> Result<&str, TryTypeError>
fn try_as_str(&self) -> Result<&str, TryTypeError>
fn try_as_char(&self) -> Result<char, TryTypeError>
fn try_as_char(&self) -> Result<char, TryTypeError>
fn try_as_array(&self) -> Result<&Self::Array, TryTypeError>
fn try_as_array(&self) -> Result<&Self::Array, TryTypeError>
Tries to represent the value as an array and returns a refference to it
Errors
if the requested type doesn’t match the actual type
fn try_as_object(&self) -> Result<&Self::Object, TryTypeError>
fn try_as_object(&self) -> Result<&Self::Object, TryTypeError>
Tries to represent the value as an object and returns a refference to it
Errors
if the requested type doesn’t match the actual type
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.
Trys to get a value based on a key, returns a TryTypeError if the
current Value isn’t an Object, returns None if the key isn’t in the object
Errors
if the value is not an object
Checks if a Value contains a given key. This will return flase if Value isn’t an object
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 try_get_idx(&self, i: usize) -> Result<Option<&Self::Target>, TryTypeError>
fn try_get_idx(&self, i: usize) -> Result<Option<&Self::Target>, TryTypeError>
Tries to get a value based on n index, returns a type error if the
current value isn’t an Array, returns None if the index is out of bouds
Errors
if the requested type doesn’t match the actual type or the value is not an object
Tries to get an element of an object as a bool
Tries to get an element of an object as a bool, returns an error if it isn’t bool
Errors
if the requested type doesn’t match the actual type or the value is not an object
Tries to get an element of an object as a i128
Tries to get an element of an object as a i128, returns an error if it isn’t i128
Errors
if the requested type doesn’t match the actual type or the value is not an object
Tries to get an element of an object as a i64
Tries to get an element of an object as a i64, returns an error if it isn’t a i64
Errors
if the requested type doesn’t match the actual type or the value is not an object
Tries to get an element of an object as a i32
Tries to get an element of an object as a i32, returns an error if it isn’t a i32
Errors
if the requested type doesn’t match the actual type or the value is not an object
Tries to get an element of an object as a i16
Tries to get an element of an object as a i16, returns an error if it isn’t a i16
Errors
if the requested type doesn’t match the actual type or the value is not an object
Tries to get an element of an object as a i8
Tries to get an element of an object as a i8, returns an error if it isn’t a i8
Errors
if the requested type doesn’t match the actual type or the value is not an object
Tries to get an element of an object as a u128
Tries to get an element of an object as a u128, returns an error if it isn’t a u128
Errors
if the requested type doesn’t match the actual type or the value is not an object
Tries to get an element of an object as a u64
Tries to get an element of an object as a u64, returns an error if it isn’t a u64
Errors
if the requested type doesn’t match the actual type or the value is not an object
Tries to get an element of an object as a usize
Tries to get an element of an object as a usize, returns an error if it isn’t a usize
Errors
if the requested type doesn’t match the actual type or the value is not an object
Tries to get an element of an object as a u32
Tries to get an element of an object as a u32, returns an error if it isn’t a u32
Errors
if the requested type doesn’t match the actual type or the value is not an object
Tries to get an element of an object as a u16
Tries to get an element of an object as a u16, returns an error if it isn’t a u16
Errors
if the requested type doesn’t match the actual type or the value is not an object
Tries to get an element of an object as a u8
Tries to get an element of an object as a u8, returns an error if it isn’t a u8
Errors
if the requested type doesn’t match the actual type or the value is not an object
Tries to get an element of an object as a f64
Tries to get an element of an object as a u8, returns an error if it isn’t a u8
Errors
if the requested type doesn’t match the actual type or the value is not an object
Tries to get an element of an object as a f32
Tries to get an element of an object as a f32, returns an error if it isn’t a f32
Errors
if the requested type doesn’t match the actual type or the value is not an object
Tries to get an element of an object as a str
Tries to get an element of an object as a str, returns an error if it isn’t a str
Errors
if the requested type doesn’t match the actual type or the value is not an object
Tries to get an element of an object as a array
fn try_get_array<Q: ?Sized>(
&self,
k: &Q
) -> Result<Option<&<<Self as ValueAccess>::Target as ValueAccess>::Array>, TryTypeError> where
Self::Key: Borrow<Q> + Hash + Eq,
Q: Hash + Eq + Ord,
fn try_get_array<Q: ?Sized>(
&self,
k: &Q
) -> Result<Option<&<<Self as ValueAccess>::Target as ValueAccess>::Array>, TryTypeError> where
Self::Key: Borrow<Q> + Hash + Eq,
Q: Hash + Eq + Ord,
Tries to get an element of an object as an array, returns an error if it isn’t a array
Errors
if the requested type doesn’t match the actual type or the value is not an object
Tries to get an element of an object as a object
fn try_get_object<Q: ?Sized>(
&self,
k: &Q
) -> Result<Option<&<<Self as ValueAccess>::Target as ValueAccess>::Object>, TryTypeError> where
Self::Key: Borrow<Q> + Hash + Eq,
Q: Hash + Eq + Ord,
fn try_get_object<Q: ?Sized>(
&self,
k: &Q
) -> Result<Option<&<<Self as ValueAccess>::Target as ValueAccess>::Object>, TryTypeError> where
Self::Key: Borrow<Q> + Hash + Eq,
Q: Hash + Eq + Ord,
Tries to get an element of an object as an object, returns an error if it isn’t an object
Errors
if the requested type doesn’t match the actual type or the value is not an object