55 lines
1.7 KiB
Swift
55 lines
1.7 KiB
Swift
//===----------------------------------------------------------------------===//
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//
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// This source file is part of the Hummingbird server framework project
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//
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// Copyright (c) 2021-2021 the Hummingbird authors
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// Licensed under Apache License v2.0
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//
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// See LICENSE.txt for license information
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// See hummingbird/CONTRIBUTORS.txt for the list of Hummingbird authors
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//
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// SPDX-License-Identifier: Apache-2.0
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//
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//===----------------------------------------------------------------------===//
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/// Context that current object inside a sequence is being rendered in. Only relevant when rendering a sequence
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struct HBMustacheSequenceContext: HBMustacheTransformable {
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var first: Bool
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var last: Bool
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var index: Int
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init(first: Bool = false, last: Bool = false) {
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self.first = first
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self.last = last
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self.index = 0
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}
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/// Transform `HBMustacheContext`. These are available when processing elements
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/// of a sequence.
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///
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/// Format your mustache as follows to accept them. They look like a function without any arguments
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/// ```
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/// {{#sequence}}{{index()}}{{/sequence}}
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/// ```
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///
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/// Transforms available are `first`, `last`, `index`, `even` and `odd`
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/// - Parameter name: transform name
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/// - Returns: Result
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func transform(_ name: String) -> Any? {
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switch name {
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case "first":
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return self.first
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case "last":
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return self.last
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case "index":
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return self.index
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case "even":
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return (self.index & 1) == 0
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case "odd":
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return (self.index & 1) == 1
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default:
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return nil
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}
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}
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}
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