Make Nix builds work

1 files changed, 64 insertions, 0 deletions

diff --git a/vendor/github.com/modern-go/reflect2/unsafe_iface.go b/vendor/github.com/modern-go/reflect2/unsafe_iface.go
new file mode 100644
index 0000000..b601955
--- /dev/null
+++ b/vendor/github.com/modern-go/reflect2/unsafe_iface.go
@@ -0,0 +1,64 @@
+package reflect2
+
+import (
+        "reflect"
+        "unsafe"
+)
+
+type iface struct {
+        itab *itab
+        data unsafe.Pointer
+}
+
+type itab struct {
+        ignore unsafe.Pointer
+        rtype  unsafe.Pointer
+}
+
+func IFaceToEFace(ptr unsafe.Pointer) interface{} {
+        iface := (*iface)(ptr)
+        if iface.itab == nil {
+                return nil
+        }
+        return packEFace(iface.itab.rtype, iface.data)
+}
+
+type UnsafeIFaceType struct {
+        unsafeType
+}
+
+func newUnsafeIFaceType(cfg *frozenConfig, type1 reflect.Type) *UnsafeIFaceType {
+        return &UnsafeIFaceType{
+                unsafeType: *newUnsafeType(cfg, type1),
+        }
+}
+
+func (type2 *UnsafeIFaceType) Indirect(obj interface{}) interface{} {
+        objEFace := unpackEFace(obj)
+        assertType("Type.Indirect argument 1", type2.ptrRType, objEFace.rtype)
+        return type2.UnsafeIndirect(objEFace.data)
+}
+
+func (type2 *UnsafeIFaceType) UnsafeIndirect(ptr unsafe.Pointer) interface{} {
+        return IFaceToEFace(ptr)
+}
+
+func (type2 *UnsafeIFaceType) IsNil(obj interface{}) bool {
+        if obj == nil {
+                return true
+        }
+        objEFace := unpackEFace(obj)
+        assertType("Type.IsNil argument 1", type2.ptrRType, objEFace.rtype)
+        return type2.UnsafeIsNil(objEFace.data)
+}
+
+func (type2 *UnsafeIFaceType) UnsafeIsNil(ptr unsafe.Pointer) bool {
+        if ptr == nil {
+                return true
+        }
+        iface := (*iface)(ptr)
+        if iface.itab == nil {
+                return true
+        }
+        return false
+}