errcheck

type Checker struct {
	// ignore is a map of package names to regular expressions. Identifiers from a package are
	// checked against its regular expressions and if any of the expressions match the call
	// is not checked.
	Ignore map[string]*regexp.Regexp

	// If blank is true then assignments to the blank identifier are also considered to be
	// ignored errors.
	Blank bool

	// If asserts is true then ignored type assertion results are also checked
	Asserts bool

	// build tags
	Tags []string

	Verbose bool

	// If true, checking of of _test.go files is disabled
	WithoutTests bool
}

type UncheckedError struct {
	Pos  token.Position
	Line string
}

type UncheckedErrors struct {
	// Errors is a list of all the unchecked errors in the package.
	// Printing an error reports its position within the file and the contents of the line.
	Errors []UncheckedError
}