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go/build: inconsistency on whether NoGoError includes test files #31921

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bradfitz opened this issue May 8, 2019 · 1 comment

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commented May 8, 2019

The code & documentation disagree about whether go/build.NoGoError includes tests.

Code says:

        if len(p.GoFiles)+len(p.CgoFiles)+len(p.TestGoFiles)+len(p.XTestGoFiles) == 0 {
                return p, &NoGoError{p.Dir}
        }

But docs say:

// NoGoError is the error used by Import to describe a directory                                                                                                                                                                        
// containing no buildable Go source files. (It may still contain                                                                                                                                                                       
// test files, files hidden by build tags, and so on.)                                                                                                                                                                                  
type NoGoError struct {
        Dir string
}

(Notably, the "it may still contain test files" part, implying that a directory with only foo_test.go should be NoGoError).

/cc @bcmills @jayconrod @rsc @ianlancetaylor

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commented May 8, 2019

This is closely related to #29268, I think.

@bcmills bcmills added this to the Go1.13 milestone May 8, 2019

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