Trait bracket::helper::Helper

pub trait Helper: Send + Sync {
    pub fn call<'render, 'call>(
        &self, 
        rc: &mut Render<'render>, 
        ctx: &Context<'call>, 
        template: Option<&'render Node<'render>>
    ) -> HelperValue;
}

Trait for helpers.

Required methods

pub fn call<'render, 'call>(
    &self,
    rc: &mut Render<'render>,
    ctx: &Context<'call>,
    template: Option<&'render Node<'render>>
) -> HelperValue

Function that is called when this helper is resolved by the renderer for a statement or block.

The rc argument is the render context that can be used to render inner templates and write to the destination output.

The ctx argument provides access to the helper arguments and hash parameters. It also provides support for type assertions and some convenience functions for working with the Value type.

The template argument holds the inner template when the helper is invoked as a block.

For raw block helpers use the text() function on ctx to access the underlying string slice.

Loading content...

Implementors

impl Helper for Equal

pub fn call<'render, 'call>(
    &self,
    _rc: &mut Render<'render>,
    ctx: &Context<'call>,
    _template: Option<&'render Node<'render>>
) -> HelperValue

impl Helper for GreaterThan

pub fn call<'render, 'call>(
    &self,
    _rc: &mut Render<'render>,
    ctx: &Context<'call>,
    _template: Option<&'render Node<'render>>
) -> HelperValue

impl Helper for GreaterThanEqual

pub fn call<'render, 'call>(
    &self,
    _rc: &mut Render<'render>,
    ctx: &Context<'call>,
    _template: Option<&'render Node<'render>>
) -> HelperValue

impl Helper for LessThan

pub fn call<'render, 'call>(
    &self,
    _rc: &mut Render<'render>,
    ctx: &Context<'call>,
    _template: Option<&'render Node<'render>>
) -> HelperValue

impl Helper for LessThanEqual

pub fn call<'render, 'call>(
    &self,
    _rc: &mut Render<'render>,
    ctx: &Context<'call>,
    _template: Option<&'render Node<'render>>
) -> HelperValue

impl Helper for NotEqual

pub fn call<'render, 'call>(
    &self,
    _rc: &mut Render<'render>,
    ctx: &Context<'call>,
    _template: Option<&'render Node<'render>>
) -> HelperValue

impl Helper for Each

pub fn call<'render, 'call>(
    &self,
    rc: &mut Render<'render>,
    ctx: &Context<'call>,
    template: Option<&'render Node<'render>>
) -> HelperValue

impl Helper for If

pub fn call<'render, 'call>(
    &self,
    rc: &mut Render<'render>,
    ctx: &Context<'call>,
    template: Option<&'render Node<'render>>
) -> HelperValue

impl Helper for Json

pub fn call<'render, 'call>(
    &self,
    _rc: &mut Render<'render>,
    ctx: &Context<'call>,
    _template: Option<&'render Node<'render>>
) -> HelperValue

impl Helper for Log

pub fn call<'render, 'call>(
    &self,
    _rc: &mut Render<'render>,
    ctx: &Context<'call>,
    _template: Option<&'render Node<'render>>
) -> HelperValue

impl Helper for And

pub fn call<'render, 'call>(
    &self,
    _rc: &mut Render<'render>,
    ctx: &Context<'call>,
    _template: Option<&'render Node<'render>>
) -> HelperValue

impl Helper for Not

pub fn call<'render, 'call>(
    &self,
    _rc: &mut Render<'render>,
    ctx: &Context<'call>,
    _template: Option<&'render Node<'render>>
) -> HelperValue

impl Helper for Or

pub fn call<'render, 'call>(
    &self,
    _rc: &mut Render<'render>,
    ctx: &Context<'call>,
    _template: Option<&'render Node<'render>>
) -> HelperValue

impl Helper for Lookup

pub fn call<'render, 'call>(
    &self,
    _rc: &mut Render<'render>,
    ctx: &Context<'call>,
    _template: Option<&'render Node<'render>>
) -> HelperValue

impl Helper for Unless

pub fn call<'render, 'call>(
    &self,
    rc: &mut Render<'render>,
    ctx: &Context<'call>,
    template: Option<&'render Node<'render>>
) -> HelperValue

impl Helper for With

pub fn call<'render, 'call>(
    &self,
    rc: &mut Render<'render>,
    ctx: &Context<'call>,
    template: Option<&'render Node<'render>>
) -> HelperValue

Loading content...