openapi: fix jsdoc/operation matching

The script was considering that the operation
associated to a jsdoc was declared on the line
just after the end of the jsdoc.

Turns out that adding new lines makes the code
clearer, but the python script was then ignoring
some jsdocs.

Change the behaviour to consider that the jsdoc
associated with an operation is the last one
declared after the end of the previous operation.

Fixes #3169

openapi/generate_openapi.py

@@ -814,13 +814,21 @@ def parse_schemas(schemas_dir):
                                                        for d in data]
                                 entry_points.extend(schema_entry_points)
 
+                                end_of_previous_operation = -1
+
                                 # try to match JSDoc to the operations
                                 for entry_point in schema_entry_points:
                                     operation = entry_point.method  # POST/GET/PUT/DELETE
+
+                                    # find all jsdocs that end before the current operation,
+                                    # the last item in the list is the one we need
                                     jsdoc = [j for j in jsdocs
-                                             if j.loc.end.line + 1 == operation.loc.start.line]
+                                             if j.loc.end.line + 1 <= operation.loc.start.line and
+                                                j.loc.start.line > end_of_previous_operation]
                                     if bool(jsdoc):
-                                        entry_point.doc = jsdoc[0]
+                                        entry_point.doc = jsdoc[-1]
+
+                                    end_of_previous_operation = operation.loc.end.line
             except TypeError:
                 logger.warning(context.txt_for(statement))
                 logger.error('{}:{}-{} can not parse {}'.format(path,