I've a lot of similar templates with a lot of common macros, I'd like to just have a c

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reusable macro templates about stencilswiftkit HOT 4 CLOSED

swiftgen commented on June 1, 2024

reusable macro templates

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Comments (4)

nferruzzi commented on June 1, 2024 3

I actually wrote the solution myself; maybe this can be useful for someone else ..
This is a simple import node, the rendered output is discarded as well so the macro file can have space and comments between macros blocks 💃

I use it at the top of my template files

{% import "Macros.swift" %}

import Foundation

class ImportNode : NodeType {
    let templateName: Variable

    class func parse(_ parser: TokenParser, token: Token) throws -> NodeType {
        let bits = token.components()

        guard bits.count == 2 else {
            throw TemplateSyntaxError("'import' tag requires one argument, the template file to be imported.")
        }

        return ImportNode(templateName: Variable(bits[1]))
    }

    init(templateName: Variable) {
        self.templateName = templateName
    }

    func render(_ context: Context) throws -> String {
        guard let templateName = try self.templateName.resolve(context) as? String else {
            throw TemplateSyntaxError("'\(self.templateName)' could not be resolved as a string")
        }

        let template = try context.environment.loadTemplate(name: templateName)

        _ = try template.render(context)
        return ""
    }
}

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