Struct DynamicValueVTable 

#[repr(C)]
pub struct DynamicValueVTable {

    pub set_null: unsafe fn(PtrUninit),
    pub set_bool: unsafe fn(PtrUninit, bool),
    pub set_i64: unsafe fn(PtrUninit, i64),
    pub set_u64: unsafe fn(PtrUninit, u64),
    pub set_f64: unsafe fn(PtrUninit, f64) -> bool,
    pub set_str: unsafe fn(PtrUninit, &str),
    pub set_bytes: Option<unsafe fn(PtrUninit, &[u8])>,
    pub set_datetime: Option<unsafe fn(PtrUninit, i32, u8, u8, u8, u8, u8, u32, DynDateTimeKind)>,
    pub begin_array: unsafe fn(PtrUninit),
    pub push_array_element: unsafe fn(PtrMut, PtrMut),
    pub end_array: Option<unsafe fn(PtrMut)>,
    pub begin_object: unsafe fn(PtrUninit),
    pub insert_object_entry: unsafe fn(PtrMut, &str, PtrMut),
    pub end_object: Option<unsafe fn(PtrMut)>,
    pub get_kind: unsafe fn(PtrConst) -> DynValueKind,
    pub get_bool: unsafe fn(PtrConst) -> Option<bool>,
    pub get_i64: unsafe fn(PtrConst) -> Option<i64>,
    pub get_u64: unsafe fn(PtrConst) -> Option<u64>,
    pub get_f64: unsafe fn(PtrConst) -> Option<f64>,
    pub get_str: unsafe fn(PtrConst) -> Option<&'static str>,
    pub get_bytes: Option<unsafe fn(PtrConst) -> Option<&'static [u8]>>,
    pub get_datetime: Option<unsafe fn(PtrConst) -> Option<(i32, u8, u8, u8, u8, u8, u32, DynDateTimeKind)>>,
    pub array_len: unsafe fn(PtrConst) -> Option<usize>,
    pub array_get: unsafe fn(PtrConst, usize) -> Option<PtrConst>,
    pub object_len: unsafe fn(PtrConst) -> Option<usize>,
    pub object_get_entry: unsafe fn(PtrConst, usize) -> Option<(&'static str, PtrConst)>,
    pub object_get: for<'a> unsafe fn(PtrConst, &str) -> Option<PtrConst>,
    pub object_get_mut: Option<for<'a> unsafe fn(PtrMut, &str) -> Option<PtrMut>>,
}

Virtual table for dynamic value types.

This provides all the operations needed to build and read dynamic values without knowing their concrete type at compile time.

Fields

set_null: unsafe fn(PtrUninit)

Set to null

set_bool: unsafe fn(PtrUninit, bool)

Set to boolean

set_i64: unsafe fn(PtrUninit, i64)

Set to i64

set_u64: unsafe fn(PtrUninit, u64)

Set to u64

set_f64: unsafe fn(PtrUninit, f64) -> bool

Set to f64 (returns false if value not representable)

set_str: unsafe fn(PtrUninit, &str)

Set to string

set_bytes: Option<unsafe fn(PtrUninit, &[u8])>

Set to bytes (optional - not all dynamic value types support bytes)

set_datetime: Option<unsafe fn(PtrUninit, i32, u8, u8, u8, u8, u8, u32, DynDateTimeKind)>

Set to datetime (optional - not all dynamic value types support datetime)

begin_array: unsafe fn(PtrUninit)

Initialize as empty array

push_array_element: unsafe fn(PtrMut, PtrMut)

Push element to array

end_array: Option<unsafe fn(PtrMut)>

Finalize array (optional)

begin_object: unsafe fn(PtrUninit)

Initialize as empty object

insert_object_entry: unsafe fn(PtrMut, &str, PtrMut)

Insert key-value pair

end_object: Option<unsafe fn(PtrMut)>

Finalize object (optional)

get_kind: unsafe fn(PtrConst) -> DynValueKind

Get the kind of value

get_bool: unsafe fn(PtrConst) -> Option<bool>

Get bool value

get_i64: unsafe fn(PtrConst) -> Option<i64>

Get i64 value

get_u64: unsafe fn(PtrConst) -> Option<u64>

Get u64 value

get_f64: unsafe fn(PtrConst) -> Option<f64>

Get f64 value

get_str: unsafe fn(PtrConst) -> Option<&'static str>

Get string reference

get_bytes: Option<unsafe fn(PtrConst) -> Option<&'static [u8]>>

Get bytes reference

get_datetime: Option<unsafe fn(PtrConst) -> Option<(i32, u8, u8, u8, u8, u8, u32, DynDateTimeKind)>>

Get datetime components

array_len: unsafe fn(PtrConst) -> Option<usize>

Get array length

array_get: unsafe fn(PtrConst, usize) -> Option<PtrConst>

Get array element by index

object_len: unsafe fn(PtrConst) -> Option<usize>

Get object length

object_get_entry: unsafe fn(PtrConst, usize) -> Option<(&'static str, PtrConst)>

Get object entry by index

object_get: for<'a> unsafe fn(PtrConst, &str) -> Option<PtrConst>

Get object value by key

object_get_mut: Option<for<'a> unsafe fn(PtrMut, &str) -> Option<PtrMut>>

Get mutable reference to object value by key (for navigating into existing entries)

Trait Implementations

impl Clone for DynamicValueVTable

fn clone(&self) -> DynamicValueVTable

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DynamicValueVTable

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

Formats the value using the given formatter.

impl Copy for DynamicValueVTable