Add comment to describe WriteMode mask starting point

pietern · pietern · commit cf84dec670a3 · 2024-11-20T10:31:19.000+01:00
diff --git a/libs/filer/filer.go b/libs/filer/filer.go
@@ -18,6 +18,8 @@ type WriteMode int
 const writeModePerm = WriteMode(fs.ModePerm)
 
 const (
+	// Note: these constants are defined as powers of 2 to support combining them using a bit-wise OR.
+	// They starts from the 10th bit (permission mask + 1) to avoid conflicts with the permission bits.
 	OverwriteIfExists WriteMode = (writeModePerm + 1) << iota
 	CreateParentDirectories
 )

Original file line number	Diff line number	Diff line change
`@@ -18,6 +18,8 @@ type WriteMode int`
`18`	`18`	`const writeModePerm = WriteMode(fs.ModePerm)`
`19`	`19`
`20`	`20`	`const (`
	`21`	`+ // Note: these constants are defined as powers of 2 to support combining them using a bit-wise OR.`
	`22`	`+ // They starts from the 10th bit (permission mask + 1) to avoid conflicts with the permission bits.`
`21`	`23`	`OverwriteIfExists WriteMode = (writeModePerm + 1) << iota`
`22`	`24`	`CreateParentDirectories`
`23`	`25`	`)`