builtin: Unable to print []byte alias function receiver #7081
Labels
Comments
This is documented and intended behaviour. Quoting http://golang.org/pkg/fmt: If the format (which is implicitly %v for Println etc.) is valid for a string (%s %q %v %x %X), the following two rules also apply: 1. If an operand implements the error interface, the Error method will be used to convert the object to a string, which will then be formatted as required by the verb (if any). 2. If an operand implements method String() string, that method will be used to convert the object to a string, which will then be formatted as required by the verb (if any). To avoid recursion in cases such as type X string func (x X) String() string { return Sprintf("<%s>", x) } convert the value before recurring: func (x X) String() string { return Sprintf("<%s>", string(x)) } Status changed to WorkingAsIntended. |
This issue was closed.
Sign up for free
to subscribe to this conversation on GitHub.
Already have an account?
Sign in.
by charlieandrews.cwa:
An alias of []byte cannot be printed with fmt.Printf("%x") when the alias is the receiver of the function. This is demonstrated here: http://play.golang.org/p/0sTP27XZa4 In go play, I get '[process took too long]', but on my local machine, the program containing this code compiles fine, but I get a stack overflow error when running it. If I cast the alias back to []byte it prints fine: http://play.golang.org/p/WOBMERNSV1The text was updated successfully, but these errors were encountered: