SourceKitten Class Inheritance JQ script

sourcekitten_class_inheritance.jq

# run with 
# jq -S -f sourcekitten_class_inheritance.jq sourcekitten_doc_output.json > output.json

def splitDotLast: split(".") | .[-1];

def isClassOrExtension(kind): 
	kind == "class" or kind == "extension" or kind == "protocol";

def isSelected:
	isClassOrExtension(.["key.kind"] | splitDotLast) 
  	and 
  	(."key.name" | endswith("ViewController"));

def removeWhitespace: gsub("\\s+";"");

[ 
  .. | select( isSelected )?  # recursive walk to pick out all sourcekit objects matching criteria
  | {
  	  "name":."key.name",
      "kind": ."key.kind" | splitDotLast,
      "inherits": [."key.inheritedtypes" | .[]."key.name" | removeWhitespace ] 
 	} 
] 

  # combine class/extension/protocol declaration based on name
  | group_by(.name) 
  | map({"name": .[0].name,
  	     #"kind": map(.kind) | unique,
  	     "inherits": (map(.inherits) | add) })