Struct StructureDesc 

pub struct StructureDesc {
    pub struct_id: Option<String>,
    pub fields: Vec<FieldDesc>,
}

Structure description with optional ID

Fields

struct_id: Option<String>

fields: Vec<FieldDesc>

Implementations

impl StructureDesc

pub fn new() -> Self

pub fn field(&self, name: &str) -> Option<&FieldDesc>

Look up a field by name.

pub fn heap_size(&self) -> usize

Bytes this description owns on the heap, walked recursively.

Introspection is the one term in the state tracker’s memory estimate that is both large and expensive to measure: an NTScalar carries thirty-odd nested FieldDesc nodes, each with its own name. Callers are expected to cache this at assignment rather than re-walk the tree on every accounting pass.

Trait Implementations

impl Clone for StructureDesc

fn clone(&self) -> StructureDesc

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for StructureDesc

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

Formats the value using the given formatter.

impl Default for StructureDesc

fn default() -> Self

Returns the “default value” for a type.

impl Display for StructureDesc

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

Formats the value using the given formatter.