Sergiy/eng 5147 fix usage of fragments on a root query type

v2/pkg/ast/path.go

@@ -25,9 +25,10 @@ const (
 )
 
 type PathItem struct {
- Kind PathKind
- ArrayIndex int
- FieldName ByteSlice
+ Kind PathKind
+ ArrayIndex int
+ FieldName ByteSlice
+ FragmentRef int // only used for InlineFragmentName, allows to distinguish between multiple inline fragments on the same type
 }
 
 type Path []PathItem
@@ -42,7 +43,11 @@ func (p Path) Equals(another Path) bool {
  }
  if p[i].Kind == ArrayIndex && p[i].ArrayIndex != another[i].ArrayIndex {
  return false
- } else if !bytes.Equal(p[i].FieldName, another[i].FieldName) {
+ }
+ if !bytes.Equal(p[i].FieldName, another[i].FieldName) {
+ return false
+ }
+ if p[i].FragmentRef != another[i].FragmentRef {
  return false
  }
  }
@@ -89,6 +94,7 @@ func (p Path) String() string {
  }
  case InlineFragmentName:
  out += InlineFragmentPathPrefix
+ out += strconv.Itoa(p[i].FragmentRef)
  out += unsafebytes.BytesToString(p[i].FieldName)
  }
  }
@@ -128,6 +134,7 @@ func (p Path) DotDelimitedString() string {
  }
  case InlineFragmentName:
  builder.WriteString(InlineFragmentPathPrefix)
+ builder.WriteString(strconv.Itoa(p[i].FragmentRef))
  builder.WriteString(unsafebytes.BytesToString(p[i].FieldName))
  }
  }

v2/pkg/astvisitor/visitor.go

@@ -1411,8 +1411,9 @@ func (w *Walker) appendAncestor(ref int, kind ast.NodeKind) {
  }
  typeName = w.document.InlineFragmentTypeConditionName(ref)
  w.Path = append(w.Path, ast.PathItem{
- Kind: ast.InlineFragmentName,
- FieldName: typeName,
+ Kind: ast.InlineFragmentName,
+ FieldName: typeName,
+ FragmentRef: ref,
  })
  case ast.NodeKindFragmentDefinition:
  typeName = w.document.FragmentDefinitionTypeName(ref)