fix: optional transformation warning type

Author: privatenumber

src/transform/apply-transformers.ts

@@ -40,7 +40,7 @@ type AddSourceMap<T> = Omit<T, 'map'> & { map: RawSourceMap };
 export type Transformed = {
 	code: string;
 	map: RawSourceMap;
-	warnings: any[];
+	warnings?: any[];
 };
 
 export function applyTransformersSync<

src/transform/index.ts

@@ -62,7 +62,7 @@ export function transformSync(
 		cache.set(hash, transformed);
 	}
 
-	if (transformed.warnings.length > 0) {
+	if (transformed.warnings && transformed.warnings.length > 0) {
 		const { warnings } = transformed;
 		for (const warning of warnings) {
 			console.log(warning);
@@ -108,7 +108,7 @@ export async function transform(
 		cache.set(hash, transformed);
 	}
 
-	if (transformed.warnings.length > 0) {
+	if (transformed.warnings && transformed.warnings.length > 0) {
 		const { warnings } = transformed;
 		for (const warning of warnings) {
 			console.log(warning);