1 files changed, 28 insertions, 0 deletions
diff --git a/vendor/github.com/vektah/gqlparser/validator/rules/no_undefined_variables.go b/vendor/github.com/vektah/gqlparser/validator/rules/no_undefined_variables.go
new file mode 100644
index 00000000..505206be
--- /dev/null
+++ b/vendor/github.com/vektah/gqlparser/validator/rules/no_undefined_variables.go
@@ -0,0 +1,28 @@
+package validator
+
+import (
+	"github.com/vektah/gqlparser/ast"
+	. "github.com/vektah/gqlparser/validator"
+)
+
+func init() {
+	AddRule("NoUndefinedVariables", func(observers *Events, addError AddErrFunc) {
+		observers.OnValue(func(walker *Walker, value *ast.Value) {
+			if walker.CurrentOperation == nil || value.Kind != ast.Variable || value.VariableDefinition != nil {
+				return
+			}
+
+			if walker.CurrentOperation.Name != "" {
+				addError(
+					Message(`Variable "%s" is not defined by operation "%s".`, value, walker.CurrentOperation.Name),
+					At(walker.CurrentOperation.Position),
+				)
+			} else {
+				addError(
+					Message(`Variable "%s" is not defined.`, value),
+					At(value.Position),
+				)
+			}
+		})
+	})
+}