Ruby: more def-node tests

Author: asgerf

ruby/ql/test/library-tests/dataflow/api-graphs/callbacks.rb

@@ -0,0 +1,34 @@
+Something.foo.withCallback do |a, b| #$ use=getMember("Something").getMethod("foo").getReturn().getMethod("withCallback").getReturn()
+    a.something #$ use=getMember("Something").getMethod("foo").getReturn().getMethod("withCallback").getBlock().getParameter(0).getMethod("something").getReturn()
+    b.somethingElse #$ use=getMember("Something").getMethod("foo").getReturn().getMethod("withCallback").getBlock().getParameter(1).getMethod("somethingElse").getReturn()
+end
+
+Something.withNamedArg do |a:, b: nil| #$ use=getMember("Something").getMethod("withNamedArg").getReturn()
+    a.something #$ use=getMember("Something").getMethod("withNamedArg").getBlock().getKeywordParameter("a").getMethod("something").getReturn()
+    b.somethingElse #$ use=getMember("Something").getMethod("withNamedArg").getBlock().getKeywordParameter("b").getMethod("somethingElse").getReturn()
+end
+
+Something.withLambda ->(a, b) {  #$ use=getMember("Something").getMethod("withLambda").getReturn()
+    a.something #$ use=getMember("Something").getMethod("withLambda").getParameter(0).getParameter(0).getMethod("something").getReturn()
+    b.something #$ use=getMember("Something").getMethod("withLambda").getParameter(0).getParameter(1).getMethod("something").getReturn()
+}
+
+Something.namedCallback( #$ use=getMember("Something").getMethod("namedCallback").getReturn()
+    onEvent: ->(a, b) {
+        a.something #$ use=getMember("Something").getMethod("namedCallback").getKeywordParameter("onEvent").getParameter(0).getMethod("something").getReturn()
+        b.something #$ use=getMember("Something").getMethod("namedCallback").getKeywordParameter("onEvent").getParameter(1).getMethod("something").getReturn()
+    }
+)
+
+Something.nestedCall1 do |a| #$ use=getMember("Something").getMethod("nestedCall1").getReturn()
+    a.nestedCall2 do |b:| #$ use=getMember("Something").getMethod("nestedCall1").getBlock().getParameter(0).getMethod("nestedCall2").getReturn()
+        b.something #$ use=getMember("Something").getMethod("nestedCall1").getBlock().getParameter(0).getMethod("nestedCall2").getBlock().getKeywordParameter("b").getMethod("something").getReturn()
+    end
+end
+
+def getCallback()
+    ->(x) {
+        x.something #$ use=getMember("Something").getMethod("indirectCallback").getParameter(0).getParameter(0).getMethod("something").getReturn()
+    }
+end
+Something.indirectCallback(getCallback()) #$ use=getMember("Something").getMethod("indirectCallback").getReturn()