1 files changed, 68 insertions, 0 deletions
diff --git a/vendor/github.com/graphql-go/graphql/gqlerrors/error.go b/vendor/github.com/graphql-go/graphql/gqlerrors/error.go
new file mode 100644
index 00000000..1b289bbb
--- /dev/null
+++ b/vendor/github.com/graphql-go/graphql/gqlerrors/error.go
@@ -0,0 +1,68 @@
+package gqlerrors
+
+import (
+	"fmt"
+	"reflect"
+
+	"github.com/graphql-go/graphql/language/ast"
+	"github.com/graphql-go/graphql/language/location"
+	"github.com/graphql-go/graphql/language/source"
+)
+
+type Error struct {
+	Message       string
+	Stack         string
+	Nodes         []ast.Node
+	Source        *source.Source
+	Positions     []int
+	Locations     []location.SourceLocation
+	OriginalError error
+}
+
+// implements Golang's built-in `error` interface
+func (g Error) Error() string {
+	return fmt.Sprintf("%v", g.Message)
+}
+
+func NewError(message string, nodes []ast.Node, stack string, source *source.Source, positions []int, origError error) *Error {
+	if stack == "" && message != "" {
+		stack = message
+	}
+	if source == nil {
+		for _, node := range nodes {
+			// get source from first node
+			if node == nil || reflect.ValueOf(node).IsNil() {
+				continue
+			}
+			if node.GetLoc() != nil {
+				source = node.GetLoc().Source
+			}
+			break
+		}
+	}
+	if len(positions) == 0 && len(nodes) > 0 {
+		for _, node := range nodes {
+			if node == nil || reflect.ValueOf(node).IsNil() {
+				continue
+			}
+			if node.GetLoc() == nil {
+				continue
+			}
+			positions = append(positions, node.GetLoc().Start)
+		}
+	}
+	locations := []location.SourceLocation{}
+	for _, pos := range positions {
+		loc := location.GetLocation(source, pos)
+		locations = append(locations, loc)
+	}
+	return &Error{
+		Message:       message,
+		Stack:         stack,
+		Nodes:         nodes,
+		Source:        source,
+		Positions:     positions,
+		Locations:     locations,
+		OriginalError: origError,
+	}
+}