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path: root/testdata/signature.go
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package main

import "errors"

func shouldDeclareErrInSignature() error { // want "return signature should be '\\(err error\\)'"
	var err error // Should use variable declared in signature

	err = nil
	if err != nil {
		return err
	}

	defer func() {
		err = errors.New("defer error")
	}()

	return nil // want "does not return 'err'"
}

func doesDeclareErrInSignature() (err error) {
	err = nil
	if err != nil {
		return err
	}

	defer func() {
		err = errors.New("defer error")
	}()

	return nil // want "does not return 'err'"
}

func good() (err error) {
	err = nil
	if err != nil {
		return err
	}

	defer func() {
		err = errors.New("defer error")
	}()

	return err
}