39 lines
1.1 KiB
Swift
39 lines
1.1 KiB
Swift
import PathKit
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open class IncludeNode : NodeType {
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open let templateName: Variable
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open class func parse(_ parser: TokenParser, token: Token) throws -> NodeType {
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let bits = token.components()
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guard bits.count == 2 else {
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throw TemplateSyntaxError("'include' tag takes one argument, the template file to be included")
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}
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return IncludeNode(templateName: Variable(bits[1]))
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}
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public init(templateName: Variable) {
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self.templateName = templateName
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}
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open func render(_ context: Context) throws -> String {
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guard let loader = context["loader"] as? TemplateLoader else {
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throw TemplateSyntaxError("Template loader not in context")
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}
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guard let templateName = try self.templateName.resolve(context) as? String else {
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throw TemplateSyntaxError("'\(self.templateName)' could not be resolved as a string")
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}
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guard let template = loader.loadTemplate(templateName) else {
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let paths = loader.paths.map { $0.description }.joined(separator: ", ")
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throw TemplateSyntaxError("'\(templateName)' template not found in \(paths)")
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}
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return try template.render(context)
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}
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}
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