encoding/openapi: record path in error
The path is added to a new openapiError type
that implements cue/errors.Error.
Even though failf panics, usage of failf is followed
by a return make clear that the function exits,
if necessary.
Change-Id: I2c8ab2ab7ff0c41221e519da48feb1b598c3a472
Reviewed-on: https://cue-review.googlesource.com/c/cue/+/2348
Reviewed-by: Marcel van Lohuizen <mpvl@golang.org>
diff --git a/encoding/openapi/errors.go b/encoding/openapi/errors.go
new file mode 100644
index 0000000..6201613
--- /dev/null
+++ b/encoding/openapi/errors.go
@@ -0,0 +1,41 @@
+// Copyright 2019 CUE Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package openapi
+
+import (
+ "cuelang.org/go/cue/errors"
+ "cuelang.org/go/cue/token"
+)
+
+var _ errors.Error = &openapiError{}
+
+// implements cue/Error
+type openapiError struct {
+ errors.Message
+ path []string
+ pos token.Pos
+}
+
+func (e *openapiError) Position() token.Pos {
+ return e.pos
+}
+
+func (e *openapiError) InputPositions() []token.Pos {
+ return nil
+}
+
+func (e *openapiError) Path() []string {
+ return e.path
+}
