35 lines
1.3 KiB
Go
35 lines
1.3 KiB
Go
/*
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Package errors implements custom error interfaces for cosmos-sdk.
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Error declarations should be generic and cover broad range of cases. Each
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returned error instance can wrap a generic error declaration to provide more
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details.
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This package provides a broad range of errors declared that fits all common
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cases. If an error is very specific for an extension it can be registered outside
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of the errors package. If it will be needed my many extensions, please consider
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registering it in the errors package. To create a new error instance use Register
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function. You must provide a unique, non zero error code and a short description, for example:
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var ErrZeroDivision = errors.Register(9241, "zero division")
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When returning an error, you can attach to it an additional context
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information by using Wrap function, for example:
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func safeDiv(val, div int) (int, err) {
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if div == 0 {
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return 0, errors.Wrapf(ErrZeroDivision, "cannot divide %d", val)
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}
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return val / div, nil
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}
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The first time an error instance is wrapped a stacktrace is attached as well.
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Stacktrace information can be printed using %+v and %v formats.
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%s is just the error message
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%+v is the full stack trace
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%v appends a compressed [filename:line] where the error was created
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*/
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package errors
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