32 lines
719 B
Go
32 lines
719 B
Go
//args: -Eerrorlint
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package testdata
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import (
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"errors"
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"fmt"
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"log"
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)
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var errLintFoo = errors.New("foo")
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type errLintBar struct{}
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func (*errLintBar) Error() string {
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return "bar"
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}
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func errorLintAll() {
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err := func() error { return nil }()
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if err == errLintFoo { // ERROR "comparing with == will fail on wrapped errors. Use errors.Is to check for a specific error"
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log.Println("errCompare")
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}
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err = errors.New("oops")
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fmt.Errorf("error: %v", err) // ERROR "non-wrapping format verb for fmt.Errorf. Use `%w` to format errors"
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switch err.(type) { // ERROR "type switch on error will fail on wrapped errors. Use errors.As to check for specific errors"
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case *errLintBar:
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log.Println("errLintBar")
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}
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}
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