Struct MetadataLimits 

pub struct MetadataLimits { /* private fields */ }

Domain-specific metadata limits composed with a shared JSON profile.

MetadataLimits deliberately keeps metadata-entry, schema-field, and key bounds separate from generic JSON map/key accounting. This preserves the protocol’s domain limits while the directional JSON limit types handle document traversal, payload lengths, and complete input/output bytes.

Examples

use qubit_metadata::MetadataLimits;

let limits = MetadataLimits::builder().max_key_bytes(128).build()?;
assert_eq!(limits.max_key_bytes(), 128);

Implementations

impl MetadataLimits

pub fn builder() -> MetadataLimitsBuilder

Creates a builder with the default JSON profile and domain limits.

Returns

A builder initialized with the protocol defaults.

pub const fn json_decode(&self) -> JsonDecodeLimits

Returns the JSON budgets used to decode an untrusted document.

The returned value is copied and can be used to inspect the profile without changing this limits value.

Returns

The decoding profile stored in this value.

pub const fn json_encode(&self) -> JsonEncodeLimits

Returns the JSON budgets used to encode a document.

The returned value is copied and can be used to inspect the profile without changing this limits value.

Returns

The encoding profile stored in this value.

pub const fn max_metadata_entries(&self) -> usize

Returns the maximum number of entries accepted in a metadata map.

This domain-specific bound is independent of generic JSON map accounting.

Returns

The metadata-entry limit stored in this value.

pub const fn max_schema_fields(&self) -> usize

Returns the maximum number of fields accepted in a metadata schema.

This domain-specific bound is independent of generic JSON traversal limits.

Returns

The schema-field limit stored in this value.

pub const fn max_key_bytes(&self) -> usize

Returns the maximum UTF-8 byte length accepted for one key.

The byte count applies to metadata and schema keys and is distinct from the generic JSON key budget.

Returns

The key-byte limit stored in this value.

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

Validates receiver-controlled domain limits against protocol hard caps.

Errors

Returns a JSON error when the metadata-entry, schema-field, or key-byte limit exceeds its corresponding protocol maximum.

Trait Implementations

impl Clone for MetadataLimits

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for MetadataLimits

impl Debug for MetadataLimits

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

Formats the value using the given formatter.

impl Default for MetadataLimits

fn default() -> Self

Creates the protocol’s default metadata and JSON limits.

The defaults satisfy the domain hard caps, so construction cannot fail.

Returns

A limits value containing the standard decoding, encoding, and domain profiles.

impl Eq for MetadataLimits

impl Hash for MetadataLimits

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for MetadataLimits

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for MetadataLimits