Struct Value 

pub struct Value<'a> { /* private fields */ }

A container for SCALE encoded data that can serialize types directly with the help of a type registry and without using an intermediate representation.

Implementations

impl<'a> Value<'a>

pub fn new(data: &'a [u8], ty_id: TypeId, registry: &'a Registry) -> Self

Wrap raw SCALE-encoded data as a typed value.

pub fn ty(&self) -> Option<&'a TypeDef>

The underlying type definition.

pub fn size(&self) -> Result<usize, Error>

Byte length of this value’s SCALE encoding.

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

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

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

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

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

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

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

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

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

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

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

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

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

pub fn is_u8(&self) -> bool

pub fn is_u16(&self) -> bool

pub fn is_u32(&self) -> bool

pub fn is_u64(&self) -> bool

pub fn is_u128(&self) -> bool

pub fn is_i8(&self) -> bool

pub fn is_i16(&self) -> bool

pub fn is_i32(&self) -> bool

pub fn is_i64(&self) -> bool

pub fn is_i128(&self) -> bool

pub fn is_bool(&self) -> bool

pub fn is_char(&self) -> bool

pub fn is_string(&self) -> bool

pub fn is_sequence(&self) -> bool

pub fn is_array(&self) -> bool

pub fn is_tuple(&self) -> bool

pub fn is_compact(&self) -> bool

pub fn is_variant(&self) -> bool

pub fn is_composite(&self) -> bool

pub fn sequence_len(&self) -> Option<usize>

pub fn sequence_get(&self, index: usize) -> Option<Value<'a>>

pub fn sequence_iter(&self) -> Option<SeqIter<'a>>

pub fn array_len(&self) -> Option<u32>

pub fn array_get(&self, index: u32) -> Option<Value<'a>>

pub fn field_count(&self) -> Option<usize>

pub fn field_at(&self, index: usize) -> Option<Value<'a>>

pub fn field(&self, name: &str) -> Option<Value<'a>>

pub fn fields_iter(&self) -> Option<FieldIter<'a>>

pub fn tuple_len(&self) -> Option<usize>

pub fn tuple_get(&self, index: usize) -> Option<Value<'a>>

pub fn tuple_iter(&self) -> Option<TupleIter<'a>>

pub fn variant_index(&self) -> Option<u8>

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

pub fn variant_data(&self) -> Option<Value<'a>>

Trait Implementations

impl AsRef<[u8]> for Value<'_>

fn as_ref(&self) -> &[u8]

Converts this type into a shared reference of the (usually inferred) input type.

impl Debug for Value<'_>

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

Formats the value using the given formatter.

impl Display for Value<'_>

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

Formats the value using the given formatter.

impl Serialize for Value<'_>

fn serialize<S>(&self, ser: S) -> Result<S::Ok, S::Error>

where S: Serializer,

Serialize this value into the given Serde serializer.

impl<'reg> TryFrom<Value<'reg>> for Value

Available on crate feature json only.

type Error = Error

The type returned in the event of a conversion error.

fn try_from(val: Value<'reg>) -> Result<Self, Self::Error>

Performs the conversion.