Svelte 5: bind:this no longer allows dynamic type on <input> #9709
Description
Describe the bug
In Svelte 4, you could use bind:this with a dynamic type..
<script>
let type = 'text';
let el;
</script>
<input {type} bind:this={el} />but in Svelte 5 (runes or non-runes mode), this throws a compiler error: 'type' attribute must be a static text value if input uses two-way binding
This was explicitly checked and allowed in Svelte 4, so likely a regression.
Reproduction
- Svelte 4 REPL (works)
- Svelte 5 REPL (error)
Logs
index-a870eda6.js:83 CompileError: 'type' attribute must be a static text value if input uses two-way binding
at sr ([email protected]:1:226153)
at BindDirective ([email protected]:1:502150)
at r ([email protected]:1:305770)
at o ([email protected]:1:305833)
at r ([email protected]:1:305770)
at o ([email protected]:1:305833)
at Object.next ([email protected]:1:112832)
at r ([email protected]:1:305753)
at next ([email protected]:1:305809)
at _ ([email protected]:1:305020)
### System Info
```shell
svelte: `5.0.0-next.15`
Severity
blocking an upgrade