1 files changed, 19 insertions, 0 deletions
diff --git a/vendor/github.com/vektah/gqlparser/validator/rules/known_fragment_names.go b/vendor/github.com/vektah/gqlparser/validator/rules/known_fragment_names.go
new file mode 100644
index 00000000..ec91588c
--- /dev/null
+++ b/vendor/github.com/vektah/gqlparser/validator/rules/known_fragment_names.go
@@ -0,0 +1,19 @@
+package validator
+
+import (
+	"github.com/vektah/gqlparser/ast"
+	. "github.com/vektah/gqlparser/validator"
+)
+
+func init() {
+	AddRule("KnownFragmentNames", func(observers *Events, addError AddErrFunc) {
+		observers.OnFragmentSpread(func(walker *Walker, fragmentSpread *ast.FragmentSpread) {
+			if fragmentSpread.Definition == nil {
+				addError(
+					Message(`Unknown fragment "%s".`, fragmentSpread.Name),
+					At(fragmentSpread.Position),
+				)
+			}
+		})
+	})
+}