Struct MemoryContentProvider 

pub struct MemoryContentProvider { /* private fields */ }

In-memory ContentProvider backed by a key→bytes map.

Suited to unit tests (no tempdir setup) and to the WASM Edge runtime where the JS host pre-loads a small set of source files before calling render_page_isr.

Examples

use ssg_core::{ContentProvider, MemoryContentProvider};

let mut mem = MemoryContentProvider::new();
mem.insert("a", b"1".to_vec());
assert!(mem.contains("a"));
assert_eq!(mem.fetch("a").unwrap(), b"1");

Implementations

impl MemoryContentProvider

pub fn new() -> Self

Constructs an empty MemoryContentProvider.

Examples

use ssg_core::MemoryContentProvider;

let mem = MemoryContentProvider::new();
assert!(mem.is_empty());

pub fn insert<K: Into<String>, V: Into<Vec<u8>>>( &mut self, key: K, value: V, ) -> Option<Vec<u8>>

Inserts a key/value pair, returning the previous value (if any).

Examples

use ssg_core::MemoryContentProvider;

let mut mem = MemoryContentProvider::new();
assert!(mem.insert("k", b"v1".to_vec()).is_none());
let prev = mem.insert("k", b"v2".to_vec());
assert_eq!(prev.as_deref(), Some(&b"v1"[..]));

pub fn len(&self) -> usize

Returns the number of keys currently stored.

Examples

use ssg_core::MemoryContentProvider;

let mut mem = MemoryContentProvider::new();
assert_eq!(mem.len(), 0);
mem.insert("a", b"x".to_vec());
mem.insert("b", b"y".to_vec());
assert_eq!(mem.len(), 2);

pub fn is_empty(&self) -> bool

Reports whether the provider holds no entries.

Examples

use ssg_core::MemoryContentProvider;

let mut mem = MemoryContentProvider::new();
assert!(mem.is_empty());
mem.insert("k", b"v".to_vec());
assert!(!mem.is_empty());

Trait Implementations

impl Clone for MemoryContentProvider

fn clone(&self) -> MemoryContentProvider

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl ContentProvider for MemoryContentProvider

fn fetch(&self, key: &str) -> ProviderResult<Vec<u8>>

Fetches the raw bytes for key, or returns an error.

fn contains(&self, key: &str) -> bool

Reports whether key exists without materialising the bytes.

fn fetch_string(&self, key: &str) -> ProviderResult<String>

Convenience: fetches key and decodes as UTF-8.

impl Debug for MemoryContentProvider

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

Formats the value using the given formatter.

impl Default for MemoryContentProvider

fn default() -> MemoryContentProvider

Returns the “default value” for a type.