Handle jsdoc errors

utils/comment-parser.ts

@@ -1,4 +1,4 @@
-import { Spec, parse } from "comment-parser"
+import { Spec, parse, Problem } from "comment-parser"
 
 export const getTags = (source?: string): Spec[] => {
     if (!source) return []
@@ -8,4 +8,17 @@ export const getTags = (source?: string): Spec[] => {
         [] as Spec[]
     );
     return tags
+}
+
+export const getErrors = (source?: string): Error | undefined => {
+    if (!source) return undefined
+    const blocks = parse(source)
+    const probs = blocks.reduce(
+        (acc, block) => acc.concat(block.problems),
+        [] as Problem[]
+    );
+    if (!probs.length) return undefined
+    const errors = probs.map(prob => `[${prob.code}] on line ${prob.line}: ${prob.message}`)
+    const error = new Error(`The following error(s) occured while parsing JSDOC: \n${errors.join('\n')}`)
+    return error
 }