remove ginext/mongoext (no-dep lib)

langext/coalesce.go

@@ -0,0 +1,62 @@
+package langext
+
+import (
+	"fmt"
+	"time"
+)
+
+func Coalesce[T any](v *T, def T) T {
+	if v == nil {
+		return def
+	} else {
+		return *v
+	}
+}
+
+func CoalesceString(s *string, def string) string {
+	if s == nil {
+		return def
+	} else {
+		return *s
+	}
+}
+
+func CoalesceInt(i *int, def int) int {
+	if i == nil {
+		return def
+	} else {
+		return *i
+	}
+}
+
+func CoalesceInt32(i *int32, def int32) int32 {
+	if i == nil {
+		return def
+	} else {
+		return *i
+	}
+}
+
+func CoalesceBool(b *bool, def bool) bool {
+	if b == nil {
+		return def
+	} else {
+		return *b
+	}
+}
+
+func CoalesceTime(t *time.Time, def time.Time) time.Time {
+	if t == nil {
+		return def
+	} else {
+		return *t
+	}
+}
+
+func CoalesceStringer(s fmt.Stringer, def string) string {
+	if IsNil(s) {
+		return def
+	} else {
+		return s.String()
+	}
+}