[API] Change the param-pack unpacking order to start from left to right #3296
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Changes
The parameter pack sent to
EmitLogRecord
is unpacked from right to left, which are caused by passing them as function parameters to template functionIgnoreTraitResult
. This will send the rightmostattributes
parameter to the processor and then pass it to theRecordable
. It makes it a little hard to do serialization in theRecordable
interface, because the serialization usually needs to encode the data like event name or severity before encoding the attributes.This PR changes the unpack order to help do serialization in the
Recordable
interface in a straightforward way, without caching any attributes.For significant contributions please make sure you have completed the following items:
CHANGELOG.md
updated for non-trivial changes