update

Signed-off-by: hongming <talonwan@yunify.com>

vendor/github.com/open-policy-agent/opa/topdown/runtime.go

@@ -0,0 +1,20 @@
+// Copyright 2018 The OPA Authors.  All rights reserved.
+// Use of this source code is governed by an Apache2
+// license that can be found in the LICENSE file.
+
+package topdown
+
+import "github.com/open-policy-agent/opa/ast"
+
+func builtinOPARuntime(bctx BuiltinContext, _ []*ast.Term, iter func(*ast.Term) error) error {
+
+	if bctx.Runtime == nil {
+		return iter(ast.ObjectTerm())
+	}
+
+	return iter(bctx.Runtime)
+}
+
+func init() {
+	RegisterBuiltinFunc(ast.OPARuntime.Name, builtinOPARuntime)
+}