Test library github.com/gomodule/redigo/redis

vendor/github.com/gomodule/redigo/redis/reflect.go

@@ -0,0 +1,48 @@
+package redis
+
+import (
+	"reflect"
+	"runtime"
+)
+
+// methodName returns the name of the calling method,
+// assumed to be two stack frames above.
+func methodName() string {
+	pc, _, _, _ := runtime.Caller(2)
+	f := runtime.FuncForPC(pc)
+	if f == nil {
+		return "unknown method"
+	}
+	return f.Name()
+}
+
+// mustBe panics if f's kind is not expected.
+func mustBe(v reflect.Value, expected reflect.Kind) {
+	if v.Kind() != expected {
+		panic(&reflect.ValueError{Method: methodName(), Kind: v.Kind()})
+	}
+}
+
+// fieldByIndexCreate returns the nested field corresponding
+// to index creating elements that are nil when stepping through.
+// It panics if v is not a struct.
+func fieldByIndexCreate(v reflect.Value, index []int) reflect.Value {
+	if len(index) == 1 {
+		return v.Field(index[0])
+	}
+
+	mustBe(v, reflect.Struct)
+	for i, x := range index {
+		if i > 0 {
+			if v.Kind() == reflect.Ptr && v.Type().Elem().Kind() == reflect.Struct {
+				if v.IsNil() {
+					v.Set(reflect.New(v.Type().Elem()))
+				}
+				v = v.Elem()
+			}
+		}
+		v = v.Field(x)
+	}
+
+	return v
+}