return gover.LocalToolchain()
		}
		if f.Toolchain != nil {
			return f.Toolchain.Name
		}
	}
	return "go" + mms.GoVersion()
}

func (mms *MainModuleSet) WorkFileReplaceMap() map[module.Version]module.Version {
	return mms.workFileReplaceMap
}

var MainModules *MainModuleSet

type Root int

const (
	// AutoRoot is the default for most commands. modload.Init will look for