From: Alexandre Terrasa <alexandre@moz-code.org>
Date: Wed, 8 Jun 2016 15:44:43 +0000 (-0400)
Subject: nitweb: add /api/inheritance/:id service
X-Git-Url: http://nitlanguage.org

nitweb: add /api/inheritance/:id service

Signed-off-by: Alexandre Terrasa <alexandre@moz-code.org>
---

diff --git a/src/nitweb.nit b/src/nitweb.nit
index a1a41a3..23d17a3 100644
--- a/src/nitweb.nit
+++ b/src/nitweb.nit
@@ -102,6 +102,7 @@ class APIRouter
 		use("/uml/:id", new APIEntityUML(model, mainmodule))
 		use("/linearization/:id", new APIEntityLinearization(model, mainmodule))
 		use("/defs/:id", new APIEntityDefs(model, mainmodule))
+		use("/inheritance/:id", new APIEntityInheritance(model, mainmodule))
 	end
 end
 
diff --git a/src/web/model_api.nit b/src/web/model_api.nit
index 0d4c205..a9f0c75 100644
--- a/src/web/model_api.nit
+++ b/src/web/model_api.nit
@@ -120,6 +120,22 @@ class APIEntity
 	end
 end
 
+# List ancestors, parents, child and descendants of MEntity
+#
+# Example: `GET /entity/core::Array/inheritance`
+class APIEntityInheritance
+	super APIHandler
+
+	redef fun get(req, res) do
+		var mentity = mentity_from_uri(req, res)
+		if mentity == null then
+			res.error 404
+			return
+		end
+		res.json mentity.hierarchy_poset(view)[mentity]
+	end
+end
+
 # Linearize super definitions of a MClassDef or a MPropDef if any.
 #
 # Example: `GET /entity/core::Array/linearization`
diff --git a/src/web/web_base.nit b/src/web/web_base.nit
index c84c784..0bdf0ad 100644
--- a/src/web/web_base.nit
+++ b/src/web/web_base.nit
@@ -241,3 +241,20 @@ end
 redef class MVirtualType
 	redef var web_url = mproperty.web_url is lazy
 end
+
+redef class POSetElement[E]
+	super Jsonable
+
+	# Return JSON representation of `self`.
+	fun json: JsonObject do
+		assert self isa POSetElement[MEntity]
+		var obj = new JsonObject
+		obj["greaters"] = to_mentity_refs(greaters)
+		obj["direct_greaters"] = to_mentity_refs(direct_greaters)
+		obj["direct_smallers"] = to_mentity_refs(direct_smallers)
+		obj["smallers"] = to_mentity_refs(smallers)
+		return obj
+	end
+
+	redef fun to_json do return json.to_json
+end