8cd04da762
For persistent error handling, the methods of huffmanBitWriter have to be consistent about how they check errors. It must either consistently check error *before* every operation OR immediately *after* every operation. Since most of the current logic uses the previous approach, we apply the same style of error checking to writeBits and all calls to Write such that they only operate if w.err is already nil going into them. The error handling approach is brittle and easily broken by future commits to the code. In the near future, we should switch the logic to use panic at the lowest levels and a recover at the edge of the public API to ensure that errors are always persistent. Fixes #16749 Change-Id: Ie1d83e4ed8842f6911a31e23311cd3cbf38abe8c Reviewed-on: https://go-review.googlesource.com/27200 Reviewed-by: Matthew Dempsky <mdempsky@google.com> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> |
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