Added back in logic required by vacuum.

And added test for it.

Signed-off-by: quobix <dave@quobix.com>

index/resolver.go

@@ -4,6 +4,7 @@
 package index
 
 import (
+	"errors"
 	"fmt"
 	"github.com/pb33f/libopenapi/utils"
 	"golang.org/x/exp/slices"
@@ -32,9 +33,15 @@ func (r *ResolvingError) Error() string {
 	errs := utils.UnwrapErrors(r.ErrorRef)
 	var msgs []string
 	for _, e := range errs {
+		var idxErr *IndexingError
+		if errors.As(e, &idxErr) {
+			msgs = append(msgs, fmt.Sprintf("%s: %s [%d:%d]", idxErr.Error(),
+				idxErr.Path, idxErr.Node.Line, idxErr.Node.Column))
+		} else {
 			msgs = append(msgs, fmt.Sprintf("%s: %s [%d:%d]", e.Error(),
 				r.Path, r.Node.Line, r.Node.Column))
 		}
+	}
 	return strings.Join(msgs, "\n")
 }
 

index/resolver_test.go

@@ -44,6 +44,43 @@ func TestResolvingError_Error(t *testing.T) {
 	assert.Equal(t, "test2: $.test2 [1:1]", errs[1].Error())
 }
 
+func TestResolvingError_Error_Index(t *testing.T) {
+
+	errs := []error{
+		&ResolvingError{
+			ErrorRef: errors.Join(&IndexingError{
+				Path: "$.test1",
+				Err:  errors.New("test1"),
+				Node: &yaml.Node{
+					Line:   1,
+					Column: 1,
+				},
+			}),
+			Node: &yaml.Node{
+				Line:   1,
+				Column: 1,
+			},
+		},
+		&ResolvingError{
+			ErrorRef: errors.Join(&IndexingError{
+				Path: "$.test2",
+				Err:  errors.New("test2"),
+				Node: &yaml.Node{
+					Line:   1,
+					Column: 1,
+				},
+			}),
+			Node: &yaml.Node{
+				Line:   1,
+				Column: 1,
+			},
+		},
+	}
+
+	assert.Equal(t, "test1: $.test1 [1:1]", errs[0].Error())
+	assert.Equal(t, "test2: $.test2 [1:1]", errs[1].Error())
+}
+
 func Benchmark_ResolveDocumentStripe(b *testing.B) {
 	baseDir := "../test_specs/stripe.yaml"
 	resolveFile, _ := os.ReadFile(baseDir)