Cannot use $$restProps in runes mode (Svelte 5)

[kvangrae]

When using svelte-time as a dependency in my project and compiling in runes mode using Svelte 5:

svelte.config.js

export default {
    compilerOptions: {
        runes: true
    }
};

I get the following error:

✘ [ERROR] node_modules/svelte-time/Time.svelte:65:18 Cannot use `$$restProps` in runes mode [plugin vite-plugin-svelte:optimize-svelte]                                                                 
                                                                                                                                                                                                        
    node_modules/svelte-time/Time.svelte:65:18:                                                                                                                                                         
      65 │ time {title} {...$$restProps} datetime={timestamp}>                                                                                                                                          
         ╵                   ^                                                                                                                                                                          
                                                                                                                                                                                                        
  The plugin "vite-plugin-svelte:optimize-svelte" was triggered by this import                                                                                                                          
                                                                                                                                                                                                        
    node_modules/svelte-time/index.js:3:24:                                                                                                                                                             
      3 │ export { default } from "./Time.svelte";                                                                                                                                                      
        ╵                         ~~~~~~~~~~~~~~~                                                                                                                                                       

This is a limitation for other projects that are using Svelte 5 and runes.

[kvangrae]

When upgrading to support Svelte 5 and runes, you can replace $$restProps with $props.

Example:

<script>
    ...
    const props = $props();
    ...
</script>

<time {title} {...props} datetime={timestamp}>
    {formatted}
</time>

[niemyjski]

$: is also not allowed

https://github.com/metonym/svelte-time/blob/master/src/Time.svelte#L51C1-L62

[niemyjski]

@kvangrae any chance you could submit a pr for this?

[kvangrae]

@kvangrae any chance you could submit a pr for this?

Sure, no problem. Let me get back to you.

[kvangrae]

@niemyjski have a look at pull request #51 and let me know what you think.

[niemyjski]

@kvangrae looks good, left one comment. @metonym can we get this merged and a release going.

[metonym]

Is there a rough estimation as to how many Svelte users explicitly opt-in to Runes mode?

If runes mode is not the default in Svelte 5, is it possible that this user base is smaller than Svelte 3/4/5 (non-runes mode)?