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ca/linter: Port safety checks from ceremony tool #7498
ca/linter: Port safety checks from ceremony tool #7498
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a) don't directly check for nil here, instead check
len(foo) == 0
b) no need for this since the anonymous function does the same check on line 673; pick one or the other
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What is the functional difference between checking for
nil
orlen 0
on a[]byte
? The zero value of a[]byte
is going to benil
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You're right, the true zero value of
[]byte
isnil
. But generally the purpose of checks like this is not simply to check for the zero value, but rather to check for obviously invalid inputs, so that more helpful error messages can be displayed and so that we can avoid doing expensive checks if we already know they're going to fail. So alen(foo) == 0
check also catches the case where the byte slice exists but has an obviously-invalid (zero) length.There was a problem hiding this comment.
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I can get rid of this because
tbs.Empty()
on line 670 is handling thelen(foo) == 0
case anyways.