Struct MetaTable 

pub struct MetaTable { /* private fields */ }

The rows a writer intends to seal into the archive’s META_MODULE section.

A MetaTable that exists but holds no rows is a real, meaningful thing: it seals a present, empty index, which reads back as ArchiveMeta::Index(_) with is_empty() == true — “I searched, and this archive genuinely records nothing”, as opposed to NoMetadata.

Implementations

impl MetaTable

pub fn new() -> Self

pub fn from_rows(rows: Vec<MetaEntry>) -> Self

pub fn insert( &mut self, relative_path: impl Into<String>, key: impl Into<String>, value: impl Into<MetaValue>, ) -> &mut Self

Attach a typed fact to one archive entry.

pub fn insert_archive( &mut self, key: impl Into<String>, value: impl Into<MetaValue>, ) -> &mut Self

Attach a typed fact to the archive as a whole.

pub fn extend(&mut self, rows: impl IntoIterator<Item = MetaEntry>) -> &mut Self

pub fn rows(&self) -> &[MetaEntry]

pub fn len(&self) -> usize

pub fn is_empty(&self) -> bool

Trait Implementations

impl Clone for MetaTable

fn clone(&self) -> MetaTable

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MetaTable

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

Formats the value using the given formatter.

impl Default for MetaTable

fn default() -> MetaTable

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for MetaTable

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for MetaTable

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for MetaTable

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for MetaTable