fix(language-core): fault-tolerant complex export expression

johnsoncodehk · johnsoncodehk · commit fe687a63639a · 2025-12-09T09:13:45.000+08:00
diff --git a/packages/language-core/lib/codegen/script/index.ts b/packages/language-core/lib/codegen/script/index.ts
@@ -132,14 +132,14 @@ function* generateWorker(
 	}
 	// only <script>
 	else if (script && scriptRanges) {
-		const { exportDefault, componentOptions } = scriptRanges;
+		const { exportDefault } = scriptRanges;
 		if (exportDefault) {
-			const { expression } = componentOptions ?? exportDefault;
+			const { expression, isObjectLiteral } = exportDefault;
 
 			let wrapLeft: string | undefined;
 			let wrapRight: string | undefined;
 			if (
-				script.content[expression.start] === '{'
+				isObjectLiteral
 				&& vueCompilerOptions.optionsWrapper.length
 			) {
 				[wrapLeft, wrapRight] = vueCompilerOptions.optionsWrapper;
@@ -161,8 +161,7 @@ function* generateWorker(
 			}
 
 			yield* generateSfcBlockSection(script, 0, expression.start, codeFeatures.all);
-			yield exportExpression;
-			yield endOfLine;
+			yield `${exportExpression}${endOfLine}`;
 			yield* generateTemplate(options, ctx, names._export);
 			yield* generateExportDeclareEqual(script);
 			if (wrapLeft && wrapRight) {
diff --git a/packages/language-core/lib/parsers/scriptRanges.ts b/packages/language-core/lib/parsers/scriptRanges.ts
@@ -13,6 +13,7 @@ export function parseScriptRanges(
 	let exportDefault:
 		| TextRange & {
 			expression: TextRange;
+			isObjectLiteral: boolean;
 		}
 		| undefined;
 	let componentOptions:
@@ -35,6 +36,7 @@ export function parseScriptRanges(
 			exportDefault = {
 				..._getStartEnd(raw),
 				expression: _getStartEnd(raw.expression),
+				isObjectLiteral: ts.isObjectLiteralExpression(raw.expression),
 			};
 			const comment = getClosestMultiLineCommentRange(ts, raw, [], ast);
 			if (comment) {
diff --git a/test-workspace/tsc/passedFixtures/vue3/#3732/child2_nosetup.vue b/test-workspace/tsc/passedFixtures/vue3/#3732/child2_nosetup.vue
@@ -0,0 +1,3 @@
+<script lang="ts">
+export default ({}) as any as 1;
+</script>
diff --git a/test-workspace/tsc/passedFixtures/vue3/#3732/child_nosetup.vue b/test-workspace/tsc/passedFixtures/vue3/#3732/child_nosetup.vue
@@ -0,0 +1,3 @@
+<script lang="ts">
+export default {} as any as 1;
+</script>

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,3 @@`
	`1`	`+<script lang="ts">`
	`2`	`+export default ({}) as any as 1;`
	`3`	`+</script>`
Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,3 @@`
	`1`	`+<script lang="ts">`
	`2`	`+export default {} as any as 1;`
	`3`	`+</script>`