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chore: support modernAst flag on repl #12225

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chore: support modernAst flag on repl #12225

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6 changes: 6 additions & 0 deletions sites/svelte-5-preview/src/lib/Output/CompilerOptions.svelte
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Original file line number Diff line number Diff line change
Expand Up @@ -23,6 +23,12 @@
<Checkbox bind:checked={$compile_options.dev} />
<span class="boolean">{$compile_options.dev}</span>,
</label>

<label class="option">
<span class="key">modernAst:</span>
<Checkbox bind:checked={$compile_options.modernAst} />
<span class="boolean">{$compile_options.modernAst}</span>,
</label>
});
</div>

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3 changes: 2 additions & 1 deletion sites/svelte-5-preview/src/lib/Repl.svelte
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Expand Up @@ -77,7 +77,8 @@
/** @type {import('svelte/compiler').CompileOptions} */
const DEFAULT_COMPILE_OPTIONS = {
generate: 'client',
dev: false
dev: false,
modernAst: true
};

/** @type {Map<string, import('@codemirror/state').EditorState>} */
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2 changes: 1 addition & 1 deletion sites/svelte-5-preview/src/lib/workers/compiler/index.js
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Expand Up @@ -70,7 +70,7 @@ function compile({ id, source, options, return_ast }) {

const { js, css, warnings, metadata } = compiled;

const ast = return_ast ? svelte.parse(source, { modern: true }) : undefined;
const ast = return_ast ? svelte.parse(source, { modern: options.modernAst }) : undefined;

return {
id,
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