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Commitc785178

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fix: always mark props as stateful (#16504)
1 parentd0ebd42 commitc785178

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7 files changed

+56
-1
lines changed

7 files changed

+56
-1
lines changed

‎.changeset/gorgeous-jeans-begin.md‎

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---
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'svelte':patch
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---
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fix: always mark props as stateful

‎packages/svelte/src/compiler/phases/2-analyze/visitors/Identifier.js‎

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@@ -93,7 +93,10 @@ export function Identifier(node, context) {
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context.state.expression.references.add(binding);
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context.state.expression.has_state||=
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binding.kind!=='static'&&
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!binding.is_function()&&
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(binding.kind==='prop'||
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binding.kind==='bindable_prop'||
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binding.kind==='rest_prop'||
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!binding.is_function())&&
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!context.state.scope.evaluate(node).is_known;
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}
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import{flushSync}from'svelte';
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import{test}from'../../test';
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exportdefaulttest({
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mode:['client'],
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test({ assert, target}){
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constbtn=target.querySelector('button');
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assert.htmlEqual(target.innerHTML,`<button>inc</button> Inner: 0 Inner: 0`);
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btn?.click();
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flushSync();
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assert.htmlEqual(target.innerHTML,`<button>inc</button> Inner: 1 Inner: 1`);
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}
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});
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<script>
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let { getter }=$props()
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</script>
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Inner: {getter()}
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<script>
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importWrapper1from"./wrapper.svelte"
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importWrapper2from"./wrapper2.svelte"
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let count=$state(0);
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let getter=$derived.by(()=> {
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constcopy= count;
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return ()=> copy;
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});
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</script>
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<buttononclick={()=>count++}>inc</button>
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<Wrapper1 {getter}/>
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<Wrapper2 {getter}/>
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<script >
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importInnerfrom"./inner.svelte";
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const {getter= ()=>-1}=$props();
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</script>
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<Inner {getter} />
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<script >
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importInnerfrom"./inner.svelte";
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const {getter=$bindable(()=>-1)}=$props();
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</script>
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<Inner {getter} />

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