Struct PeekDynamicValue 

pub struct PeekDynamicValue<'mem, 'facet> { /* private fields */ }

Lets you read from a dynamic value (implements read-only operations for DynamicValue types)

This is used for types like facet_value::Value that can hold any of: null, bool, number, string, bytes, array, or object - determined at runtime.

Implementations

impl<'mem, 'facet> PeekDynamicValue<'mem, 'facet>

pub fn def(&self) -> DynamicValueDef

Returns the dynamic value definition

pub fn peek(&self) -> Peek<'mem, 'facet>

Returns the underlying peek value

pub fn kind(&self) -> DynValueKind

Returns the kind of value stored

pub fn is_null(&self) -> bool

Returns true if the value is null

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

Returns the boolean value if this is a bool, None otherwise

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

Returns the i64 value if representable, None otherwise

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

Returns the u64 value if representable, None otherwise

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

Returns the f64 value if this is a number, None otherwise

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

Returns the string value if this is a string, None otherwise

pub fn as_bytes(&self) -> Option<&'mem [u8]>

Returns the bytes value if this is bytes, None otherwise

pub fn as_datetime( &self, ) -> Option<(i32, u8, u8, u8, u8, u8, u32, DynDateTimeKind)>

Returns the datetime components if this is a datetime, None otherwise

Returns (year, month, day, hour, minute, second, nanos, kind).

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

Returns the length of the array if this is an array, None otherwise

pub fn array_get(&self, index: usize) -> Option<Peek<'mem, 'facet>>

Returns an element from the array by index, None if not an array or index out of bounds

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

Returns the length of the object if this is an object, None otherwise

pub fn object_get_entry( &self, index: usize, ) -> Option<(&'mem str, Peek<'mem, 'facet>)>

Returns a key-value pair from the object by index, None if not an object or index out of bounds

pub fn object_get(&self, key: &str) -> Option<Peek<'mem, 'facet>>

Returns a value from the object by key, None if not an object or key not found

pub fn array_iter(&self) -> Option<PeekDynamicValueArrayIter<'mem, 'facet>>

Returns an iterator over array elements if this is an array

pub fn object_iter(&self) -> Option<PeekDynamicValueObjectIter<'mem, 'facet>>

Returns an iterator over object entries if this is an object

pub fn structural_hash_inner<H: Hasher>(&self, hasher: &mut H)

Structurally hash the dynamic value’s contents.

This is called by Peek::structural_hash for dynamic values.

Trait Implementations

impl<'mem, 'facet> Clone for PeekDynamicValue<'mem, 'facet>

fn clone(&self) -> PeekDynamicValue<'mem, 'facet>

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for PeekDynamicValue<'_, '_>

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

Formats the value using the given formatter.

impl<'mem, 'facet> Copy for PeekDynamicValue<'mem, 'facet>