addr formatting

1 files changed, 25 insertions, 0 deletions

diff --git a/pkg/btrfs/internal/addr.go b/pkg/btrfs/internal/addr.go
new file mode 100644
index 0000000..7067982
--- /dev/null
+++ b/pkg/btrfs/internal/addr.go
@@ -0,0 +1,25 @@
+package internal
+
+import (
+	"fmt"
+
+	"lukeshu.com/btrfs-tools/pkg/util"
+)
+
+type (
+	PhysicalAddr int64
+	LogicalAddr  int64
+)
+
+func formatAddr(addr int64, f fmt.State, verb rune) {
+	switch verb {
+	case 'v', 's', 'q':
+		str := fmt.Sprintf("%#016x", addr)
+		fmt.Fprintf(f, util.FmtStateString(f, verb), str)
+	default:
+		fmt.Fprintf(f, util.FmtStateString(f, verb), addr)
+	}
+}
+
+func (a PhysicalAddr) Format(f fmt.State, verb rune) { formatAddr(int64(a), f, verb) }
+func (a LogicalAddr) Format(f fmt.State, verb rune)  { formatAddr(int64(a), f, verb) }