sourceafEfan::EfanViewHelpers.fan

** Contribute to 'EfanViewHelpers' to add view helper methods to your efan templates.
const mixin EfanViewHelpers { 
    abstract internal Type[] mixins()
}

internal const class EfanViewHelpersImpl : EfanViewHelpers {
    override internal const Type[]  mixins
    
    internal new make(Type[] mixins, |This|in) { 
        in(this)
        
        mixins.each { 
            if (!it.isMixin)
                throw EfanErr(ErrMsgs.viewHelperMixinIsNotMixin(it))
            if (!it.isConst)
                throw EfanErr(ErrMsgs.viewHelperMixinIsNotConst(it))
            if (!it.isPublic)
                throw EfanErr(ErrMsgs.viewHelperMixinIsNotPublic(it))
        }
        
        this.mixins = mixins.toImmutable
    }
}