38 lines
1.2 KiB
Swift
38 lines
1.2 KiB
Swift
|
|
/// Lambda function. Can add this to object being rendered to filter contents of objects.
|
|
///
|
|
/// See http://mustache.github.io/mustache.5.html for more details on
|
|
/// mustache lambdas. Lambdas work slightly differently in HummingbirdMustache though
|
|
/// as they are passed a template representing the contained text and not the raw text
|
|
/// e.g
|
|
/// ```
|
|
/// struct Object {
|
|
/// let name: String
|
|
/// let wrapped: HBMustacheLambda
|
|
/// }
|
|
/// let willy = Object(name: "Willy", wrapped: .init({ object, template in
|
|
/// return "<b>\(template.render(object))</b>"
|
|
/// }))
|
|
/// let mustache = "{{#wrapped}}{{name}} is awesome.{{/wrapped}}"
|
|
/// let template = try HBMustacheTemplate(string: mustache)
|
|
/// let output = template.render(willy)
|
|
/// print(output) // <b>Willy is awesome</b>
|
|
/// ```
|
|
///
|
|
public struct HBMustacheLambda {
|
|
/// lambda callback
|
|
public typealias Callback = (Any, HBMustacheTemplate) -> String
|
|
|
|
let callback: Callback
|
|
|
|
/// Initialize `HBMustacheLambda`
|
|
/// - Parameter cb: function to be called by lambda
|
|
public init(_ cb: @escaping Callback) {
|
|
callback = cb
|
|
}
|
|
|
|
internal func run(_ object: Any, _ template: HBMustacheTemplate) -> String {
|
|
return callback(object, template)
|
|
}
|
|
}
|