Struct EngineBuilder 

pub struct EngineBuilder { /* private fields */ }

Builder for Engine.

Obtained via Engine::builder(). Call EngineBuilder::build to construct the engine after setting options.

Implementations

impl EngineBuilder

pub fn config(self, config: TemplateConfig) -> Self

Sets the template configuration.

If not called, TemplateConfig::default() is used.

pub fn function<N, F, Rv, Args>(self, name: N, f: F) -> Self

where N: Into<Cow<'static, str>> + Send + 'static, F: Function<Rv, Args> + Send + Sync + 'static, Rv: FunctionResult, Args: for<'a> FunctionArgs<'a>,

Registers a custom MiniJinja global function.

name is the name used in templates (e.g. "greet"), f is any value that implements minijinja::functions::Function.

pub fn filter<N, F, Rv, Args>(self, name: N, f: F) -> Self

where N: Into<Cow<'static, str>> + Send + 'static, F: Function<Rv, Args> + Send + Sync + 'static, Rv: FunctionResult, Args: for<'a> FunctionArgs<'a>,

Registers a custom MiniJinja filter.

name is the filter name used in templates (e.g. "shout"), f is any value that implements minijinja::functions::Function.

pub fn i18n(self, i18n: I18n) -> Self

Provide a shared I18n handle so templates can call {{ t("key") }}.

If omitted, the engine does not register the t() function — templates that reference it will fail to render.

pub fn build(self) -> Result<Engine>

Builds and returns the Engine.

The static-assets directory at TemplateConfig::static_path is walked once to compute SHA-256 content hashes used by the static_url() template function for cache busting. If the directory does not exist, an empty hash map is used and static_url() falls back to unversioned URLs.

Errors

Returns Error if any file under the static-assets directory cannot be read while computing content hashes.

Trait Implementations

impl Default for EngineBuilder

fn default() -> EngineBuilder

Returns the “default value” for a type.