Fix package with version alias detection

.gitignore

@@ -30,4 +30,5 @@ _testmain.go
 /bin
 /.gh_token
 
-.idea
+.idea
+.vscode

go.mod

@@ -11,6 +11,7 @@ require (
 )
 
 require (
+	github.com/gofrs/uuid/v5 v5.3.0
 	github.com/kr/text v0.2.0 // indirect
 	golang.org/x/mod v0.8.0 // indirect
 	golang.org/x/sys v0.15.0 // indirect

go.sum

@@ -1,6 +1,8 @@
 github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/gofrs/uuid/v5 v5.3.0 h1:m0mUMr+oVYUdxpMLgSYCZiXe7PuVPnI94+OMeVBNedk=
+github.com/gofrs/uuid/v5 v5.3.0/go.mod h1:CDOjlDMVAtN56jqyRUZh58JT31Tiw7/oQyEXZV+9bD8=
 github.com/golang/protobuf v1.5.0/go.mod h1:FsONVRAS9T7sI+LIUmWTfcYkHO4aIWwzhcaSAoJOfIk=
 github.com/google/go-cmp v0.5.5 h1:Khx7svrCpmxxtHBq5j2mp/xVjsi8hQMfNLvJFAlrGgU=
 github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=

internal/types/interface.go

@@ -97,17 +97,27 @@ func isExportedInterfaceAlias(typeSpec *ast.TypeSpec, fileImports []*ast.ImportS
 		return false
 	}
 
+	name := selector.Sel.Name
 	srcPkgPath := findSourcePackage(ident, fileImports)
-	srcAst, err := getPackageAst(srcPkgPath)
+	srcPackageAst, err := getPackageAst(srcPkgPath)
 	if err != nil {
 		return false
 	}
 
-	typeSpec, imports := findTypeSpecInPackage(srcAst, selector.Sel.Name)
+	for _, f := range srcPackageAst.Files {
+		if f == nil {
+			continue
+		}
+		types := findAllTypeSpecsInFile(f)
+		typeSpec, found := findTypeByName(types, name)
+		if found {
+			// we have to check recursively because checked typed might be
+			// another alias to other interface
+			return isInterface(typeSpec, f.Imports)
+		}
+	}
 
-	// we have to check recursively because checked typed might be
-	// another alias to other interface
-	return isInterface(typeSpec, imports)
+	return false
 }
 
 func getPackageAst(packagePath string) (*ast.Package, error) {
@@ -125,21 +135,6 @@ func getPackageAst(packagePath string) (*ast.Package, error) {
 	return srcAst, nil
 }
 
-func findTypeSpecInPackage(p *ast.Package, name string) (typeSpec *ast.TypeSpec, imports []*ast.ImportSpec) {
-	for _, f := range p.Files {
-		if f == nil {
-			continue
-		}
-		types := findAllTypeSpecsInFile(f)
-		typeSpec, found := findTypeByName(types, name)
-		if found {
-			return typeSpec, f.Imports
-		}
-	}
-
-	return
-}
-
 func findTypeByName(types []*ast.TypeSpec, name string) (*ast.TypeSpec, bool) {
 	for _, ts := range types {
 		if ts.Name.Name == name {
@@ -161,12 +156,22 @@ func findSourcePackage(ident *ast.Ident, imports []*ast.ImportSpec) string {
 			continue
 		}
 
-		slash := strings.LastIndex(cleanPath, "/")
-		if ident.Name == cleanPath[slash+1:] {
+		// try last segment, like in "github.com/my/package/identName"
+		lastSlash := strings.LastIndex(cleanPath, "/")
+		if ident.Name == cleanPath[lastSlash+1:] {
 			return cleanPath
 		}
+
+		// try prev segment, like in "github.com/my/package/identName/v5"
+		if cleanPath[lastSlash+1] == 'v' {
+			prevSlash := strings.LastIndex(cleanPath[:lastSlash], "/")
+			if ident.Name == cleanPath[prevSlash+1:lastSlash] {
+				return cleanPath
+			}
+		}
 	}
 
+	// todo: should not reach here?
 	return ""
 }
 

tests/types.go

@@ -5,10 +5,14 @@ import (
 	"context"
 	"io"
 
+	"github.com/gofrs/uuid/v5"
 	"google.golang.org/protobuf/proto"
 )
 
 type (
+	// Alias for package with version
+	gen = uuid.Gen
+
 	//Formatter interface is used to test code generated by minimock
 	Formatter interface {
 		formatter //to check if variadic functions are supported