cuelang.org/go@v0.10.1/mod/module/versions.go (about)

     1  package module
     2  
     3  import (
     4  	"cuelang.org/go/internal/mod/semver"
     5  )
     6  
     7  // Versions implements mvs.Versions[Version].
     8  type Versions struct{}
     9  
    10  // New implements mvs.Versions[Version].Version.
    11  func (Versions) Version(v Version) string {
    12  	return v.Version()
    13  }
    14  
    15  // New implements mvs.Versions[Version].Path.
    16  func (Versions) Path(v Version) string {
    17  	return v.Path()
    18  }
    19  
    20  // New implements mvs.Versions[Version].New.
    21  func (Versions) New(p, v string) (Version, error) {
    22  	return NewVersion(p, v)
    23  }
    24  
    25  // Max implements mvs.Reqs.Max.
    26  //
    27  // It is consistent with semver.Compare except that as a special case,
    28  // the version "" is considered higher than all other versions. The main
    29  // module (also known as the target) has no version and must be chosen
    30  // over other versions of the same module in the module dependency
    31  // graph.
    32  //
    33  // See [mvs.Reqs] for more detail.
    34  func (Versions) Max(v1, v2 string) string {
    35  	if v1 == "none" || v2 == "" {
    36  		return v2
    37  	}
    38  	if v2 == "none" || v1 == "" {
    39  		return v1
    40  	}
    41  	if semver.Compare(v1, v2) > 0 {
    42  		return v1
    43  	}
    44  	return v2
    45  }