Struct Metadata 

pub struct Metadata {
    pub title: Option<String>,
    pub author: Option<String>,
    pub subject: Option<String>,
    pub keywords: Vec<String>,
    pub created: Option<String>,
    pub modified: Option<String>,
}

Document metadata: title, author, subject, keywords, timestamps.

All fields are optional. Default returns a fully empty metadata (all None / empty Vec).

Design Decision

Timestamps use Option<String> (ISO 8601) instead of chrono::DateTime. Rationale: chrono adds ~250KB compile weight for two fields that Core never does arithmetic on. Smithy crates parse and validate dates when reading from format-specific sources.

Examples

use hwpforge_core::Metadata;

let meta = Metadata::default();
assert!(meta.title.is_none());
assert!(meta.keywords.is_empty());

Fields

title: Option<String>

Document title.

author: Option<String>

Document author.

subject: Option<String>

Document subject or description.

keywords: Vec<String>

Searchable keywords.

created: Option<String>

Creation timestamp in ISO 8601 format (e.g. "2026-02-07T10:30:00Z").

modified: Option<String>

Last modification timestamp in ISO 8601 format.

Trait Implementations

impl Clone for Metadata

fn clone(&self) -> Metadata

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Metadata

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

Formats the value using the given formatter.

impl Default for Metadata

fn default() -> Metadata

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Metadata

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for Metadata

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

Formats the value using the given formatter.

impl JsonSchema for Metadata

fn schema_name() -> Cow<'static, str>

The name of the generated JSON Schema.

fn schema_id() -> Cow<'static, str>

Returns a string that uniquely identifies the schema produced by this type.

fn json_schema(generator: &mut SchemaGenerator) -> Schema

Generates a JSON Schema for this type.

fn inline_schema() -> bool

Whether JSON Schemas generated for this type should be included directly in parent schemas, rather than being re-used where possible using the $ref keyword.

impl PartialEq for Metadata

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for Metadata

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for Metadata

impl StructuralPartialEq for Metadata