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44 lines
1.2 KiB
Markdown
44 lines
1.2 KiB
Markdown
# Conventions
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This document will list conventions that this repo should follow. These are
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the guidelines, and if you believe that one should not be followed, please state
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why in your PR. If you believe that a piece of code does not follow one of the
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conventions listed, please open an issue before making any changes.
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When submitting a new convention, please open an issue for discussion, if
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possible please highlight parts in the code where this convention could help the
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code readability or simplicity.
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## Avoid named return parameters
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func example(test int) (num int) {
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a = test + 1
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num = a * test
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return
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}
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In the above function we have used a named return parameter, which allows you to
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include a simple return statement without the variables you are returning. This
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practice can cause confusion when functions become large or the logic becomes
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complex, so these should be avoided.
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## Use error wrapping
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Bad:
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```
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err = SomeAPI()
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if err != nil {
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return fmt.Errorf("something bad happened: %v", err)
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}
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```
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Good:
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```
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err = SomeAPI()
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if err != nil {
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return fmt.Errorf("something bad happened: %w", err)
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}
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```
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Error wrapping allows `errors.Is` and `errors.As` usage in upper layer
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functions which might be useful.
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