v0.0.276

.gitea/workflows/Dockerfile_tests

@@ -0,0 +1,9 @@
+FROM golang:latest
+
+RUN apt install -y make curl python3 && go install gotest.tools/gotestsum@latest
+
+COPY . /source
+
+WORKDIR /source
+
+CMD ["make", "test"]

.gitea/workflows/tests.yml

@@ -0,0 +1,30 @@
+
+# https://docs.gitea.com/next/usage/actions/quickstart
+# https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions
+# https://docs.github.com/en/actions/learn-github-actions/contexts#github-context
+
+name: Build Docker and Deploy
+run-name: Build & Deploy ${{ gitea.ref }} on ${{ gitea.actor }}
+
+on: [push]
+
+jobs:
+  run_tests:
+    name: Run goext test-suite
+    runs-on: bfb-cicd-latest
+    steps:
+
+      - name: Check out code
+        uses: actions/checkout@v3
+
+      - name: Build test docker
+        id: build_docker
+        run: echo "DOCKER_IMG_ID=$(docker build -q . -f .gitea/workflows/Dockerfile_tests || echo __err_build__)" >> $GITHUB_OUTPUT
+
+      - name: Run tests
+        run: docker run --rm "${{ steps.build_docker.outputs.DOCKER_IMG_ID }}"
+
+      - name: Cleanup
+        if: always()
+        run: docker image rm "${{ steps.build_docker.outputs.DOCKER_IMG_ID }}"
+

Makefile

@@ -5,7 +5,13 @@ run:
 test:
 	# go test ./...
 	which gotestsum || go install gotest.tools/gotestsum@latest
-	gotestsum --format "testname" -- -tags="timetzdata sqlite_fts5 sqlite_foreign_keys" "./test"
+	gotestsum --format "testname" -- -tags="timetzdata sqlite_fts5 sqlite_foreign_keys" "./..."
+
+test-in-docker:
+	tag="goext_temp_test_image:$(shell uuidgen | tr -d '-')";        \
+	docker build --tag $$tag . -f .gitea/workflows/Dockerfile_tests; \
+	docker run --rm $$tag;                                           \
+	docker rmi $$tag
 
 version:
 	_data/version.sh

TODO.md

@@ -2,12 +2,6 @@
 
  - cronext
 
- - cursortoken
-
- - typed/geenric mongo wrapper
-
- - error package
-
-- rfctime.DateOnly
-- rfctime.HMSTimeOnly
-- rfctime.NanoTimeOnly
+ - rfctime.DateOnly
+ - rfctime.HMSTimeOnly
+ - rfctime.NanoTimeOnly

bfcodegen/enum-generate.go

@@ -31,13 +31,13 @@ type EnumDef struct {
 	Values       []EnumDefVal
 }
 
-var rexPackage = rext.W(regexp.MustCompile(`^package\s+(?P<name>[A-Za-z0-9_]+)\s*$`))
+var rexEnumPackage = rext.W(regexp.MustCompile(`^package\s+(?P<name>[A-Za-z0-9_]+)\s*$`))
 
 var rexEnumDef = rext.W(regexp.MustCompile(`^\s*type\s+(?P<name>[A-Za-z0-9_]+)\s+(?P<type>[A-Za-z0-9_]+)\s*//\s*(@enum:type).*$`))
 
-var rexValueDef = rext.W(regexp.MustCompile(`^\s*(?P<name>[A-Za-z0-9_]+)\s+(?P<type>[A-Za-z0-9_]+)\s*=\s*(?P<value>("[A-Za-z0-9_:]+"|[0-9]+))\s*(//(?P<descr>.*))?.*$`))
+var rexEnumValueDef = rext.W(regexp.MustCompile(`^\s*(?P<name>[A-Za-z0-9_]+)\s+(?P<type>[A-Za-z0-9_]+)\s*=\s*(?P<value>("[A-Za-z0-9_:]+"|[0-9]+))\s*(//(?P<descr>.*))?.*$`))
 
-var rexChecksumConst = rext.W(regexp.MustCompile(`const ChecksumGenerator = "(?P<cs>[A-Za-z0-9_]*)"`))
+var rexEnumChecksumConst = rext.W(regexp.MustCompile(`const ChecksumEnumGenerator = "(?P<cs>[A-Za-z0-9_]*)"`))
 
 func GenerateEnumSpecs(sourceDir string, destFile string) error {
 
@@ -52,13 +52,14 @@ func GenerateEnumSpecs(sourceDir string, destFile string) error {
 		if err != nil {
 			return err
 		}
-		if m, ok := rexChecksumConst.MatchFirst(string(content)); ok {
+		if m, ok := rexEnumChecksumConst.MatchFirst(string(content)); ok {
 			oldChecksum = m.GroupByName("cs").Value()
 		}
 	}
 
 	files = langext.ArrFilter(files, func(v os.DirEntry) bool { return v.Name() != path.Base(destFile) })
 	files = langext.ArrFilter(files, func(v os.DirEntry) bool { return strings.HasSuffix(v.Name(), ".go") })
+	files = langext.ArrFilter(files, func(v os.DirEntry) bool { return !strings.HasSuffix(v.Name(), "_gen.go") })
 	langext.SortBy(files, func(v os.DirEntry) string { return v.Name() })
 
 	newChecksumStr := goext.GoextVersion
@@ -85,7 +86,7 @@ func GenerateEnumSpecs(sourceDir string, destFile string) error {
 
 	for _, f := range files {
 		fmt.Printf("========= %s =========\n\n", f.Name())
-		fileEnums, pn, err := processFile(sourceDir, path.Join(sourceDir, f.Name()))
+		fileEnums, pn, err := processEnumFile(sourceDir, path.Join(sourceDir, f.Name()))
 		if err != nil {
 			return err
 		}
@@ -103,7 +104,7 @@ func GenerateEnumSpecs(sourceDir string, destFile string) error {
 		return errors.New("no package name found in any file")
 	}
 
-	err = os.WriteFile(destFile, []byte(fmtOutput(newChecksum, allEnums, pkgname)), 0o755)
+	err = os.WriteFile(destFile, []byte(fmtEnumOutput(newChecksum, allEnums, pkgname)), 0o755)
 	if err != nil {
 		return err
 	}
@@ -125,7 +126,7 @@ func GenerateEnumSpecs(sourceDir string, destFile string) error {
 	return nil
 }
 
-func processFile(basedir string, fn string) ([]EnumDef, string, error) {
+func processEnumFile(basedir string, fn string) ([]EnumDef, string, error) {
 	file, err := os.Open(fn)
 	if err != nil {
 		return nil, "", err
@@ -149,7 +150,7 @@ func processFile(basedir string, fn string) ([]EnumDef, string, error) {
 			break
 		}
 
-		if match, ok := rexPackage.MatchFirst(line); i == 0 && ok {
+		if match, ok := rexEnumPackage.MatchFirst(line); i == 0 && ok {
 			pkgname = match.GroupByName("name").Value()
 			continue
 		}
@@ -172,7 +173,7 @@ func processFile(basedir string, fn string) ([]EnumDef, string, error) {
 			fmt.Printf("Found enum definition { '%s' -> '%s' }\n", def.EnumTypeName, def.Type)
 		}
 
-		if match, ok := rexValueDef.MatchFirst(line); ok {
+		if match, ok := rexEnumValueDef.MatchFirst(line); ok {
 			typename := match.GroupByName("type").Value()
 			def := EnumDefVal{
 				VarName:     match.GroupByName("name").Value(),
@@ -202,7 +203,7 @@ func processFile(basedir string, fn string) ([]EnumDef, string, error) {
 	return enums, pkgname, nil
 }
 
-func fmtOutput(cs string, enums []EnumDef, pkgname string) string {
+func fmtEnumOutput(cs string, enums []EnumDef, pkgname string) string {
 	str := "// Code generated by enum-generate.go DO NOT EDIT.\n"
 	str += "\n"
 	str += "package " + pkgname + "\n"
@@ -212,7 +213,7 @@ func fmtOutput(cs string, enums []EnumDef, pkgname string) string {
 	str += "import \"gogs.mikescher.com/BlackForestBytes/goext/enums\"" + "\n"
 	str += "\n"
 
-	str += "const ChecksumGenerator = \"" + cs + "\" // GoExtVersion: " + goext.GoextVersion + "\n"
+	str += "const ChecksumEnumGenerator = \"" + cs + "\" // GoExtVersion: " + goext.GoextVersion + "\n"
 	str += "\n"
 
 	for _, enumdef := range enums {

bfcodegen/enum-generate_test.go

@@ -1,15 +1,42 @@
 package bfcodegen
 
 import (
+	_ "embed"
+	"gogs.mikescher.com/BlackForestBytes/goext/cmdext"
+	"gogs.mikescher.com/BlackForestBytes/goext/langext"
+	"gogs.mikescher.com/BlackForestBytes/goext/tst"
+	"os"
+	"path/filepath"
 	"testing"
+	"time"
 )
 
-func TestApplyEnvOverridesSimple(t *testing.T) {
+//go:embed _test_example.tgz
+var ExampleModels []byte
 
-	err := GenerateEnumSpecs("/home/mike/Code/reiff/badennet/bnet-backend/models", "/home/mike/Code/reiff/badennet/bnet-backend/models/enums_gen.go")
-	if err != nil {
-		t.Error(err)
-		t.Fail()
-	}
+func TestGenerateEnumSpecs(t *testing.T) {
+
+	tmpFile := filepath.Join(t.TempDir(), langext.MustHexUUID()+".tgz")
+
+	tmpDir := filepath.Join(t.TempDir(), langext.MustHexUUID())
+
+	err := os.WriteFile(tmpFile, ExampleModels, 0o777)
+	tst.AssertNoErr(t, err)
+
+	t.Cleanup(func() { _ = os.Remove(tmpFile) })
+
+	err = os.Mkdir(tmpDir, 0o777)
+	tst.AssertNoErr(t, err)
+
+	t.Cleanup(func() { _ = os.RemoveAll(tmpFile) })
+
+	_, err = cmdext.Runner("tar").Arg("-xvzf").Arg(tmpFile).Arg("-C").Arg(tmpDir).FailOnExitCode().FailOnTimeout().Timeout(time.Minute).Run()
+	tst.AssertNoErr(t, err)
+
+	err = GenerateEnumSpecs(tmpDir, tmpDir+"/enums_gen.go")
+	tst.AssertNoErr(t, err)
+
+	err = GenerateEnumSpecs(tmpDir, tmpDir+"/enums_gen.go")
+	tst.AssertNoErr(t, err)
 
 }

bfcodegen/id-generate.go

@@ -0,0 +1,236 @@
+package bfcodegen
+
+import (
+	"errors"
+	"fmt"
+	"gogs.mikescher.com/BlackForestBytes/goext"
+	"gogs.mikescher.com/BlackForestBytes/goext/cmdext"
+	"gogs.mikescher.com/BlackForestBytes/goext/cryptext"
+	"gogs.mikescher.com/BlackForestBytes/goext/langext"
+	"gogs.mikescher.com/BlackForestBytes/goext/rext"
+	"io"
+	"os"
+	"path"
+	"path/filepath"
+	"regexp"
+	"strings"
+	"time"
+)
+
+type IDDef struct {
+	File         string
+	FileRelative string
+	Name         string
+}
+
+var rexIDPackage = rext.W(regexp.MustCompile(`^package\s+(?P<name>[A-Za-z0-9_]+)\s*$`))
+
+var rexIDDef = rext.W(regexp.MustCompile(`^\s*type\s+(?P<name>[A-Za-z0-9_]+)\s+string\s*//\s*(@id:type).*$`))
+
+var rexIDChecksumConst = rext.W(regexp.MustCompile(`const ChecksumIDGenerator = "(?P<cs>[A-Za-z0-9_]*)"`))
+
+func GenerateIDSpecs(sourceDir string, destFile string) error {
+
+	files, err := os.ReadDir(sourceDir)
+	if err != nil {
+		return err
+	}
+
+	oldChecksum := "N/A"
+	if _, err := os.Stat(destFile); !os.IsNotExist(err) {
+		content, err := os.ReadFile(destFile)
+		if err != nil {
+			return err
+		}
+		if m, ok := rexIDChecksumConst.MatchFirst(string(content)); ok {
+			oldChecksum = m.GroupByName("cs").Value()
+		}
+	}
+
+	files = langext.ArrFilter(files, func(v os.DirEntry) bool { return v.Name() != path.Base(destFile) })
+	files = langext.ArrFilter(files, func(v os.DirEntry) bool { return strings.HasSuffix(v.Name(), ".go") })
+	files = langext.ArrFilter(files, func(v os.DirEntry) bool { return !strings.HasSuffix(v.Name(), "_gen.go") })
+	langext.SortBy(files, func(v os.DirEntry) string { return v.Name() })
+
+	newChecksumStr := goext.GoextVersion
+	for _, f := range files {
+		content, err := os.ReadFile(path.Join(sourceDir, f.Name()))
+		if err != nil {
+			return err
+		}
+		newChecksumStr += "\n" + f.Name() + "\t" + cryptext.BytesSha256(content)
+	}
+
+	newChecksum := cryptext.BytesSha256([]byte(newChecksumStr))
+
+	if newChecksum != oldChecksum {
+		fmt.Printf("[IDGenerate] Checksum has changed ( %s -> %s ), will generate new file\n\n", oldChecksum, newChecksum)
+	} else {
+		fmt.Printf("[IDGenerate] Checksum unchanged ( %s ), nothing to do\n", oldChecksum)
+		return nil
+	}
+
+	allIDs := make([]IDDef, 0)
+
+	pkgname := ""
+
+	for _, f := range files {
+		fmt.Printf("========= %s =========\n\n", f.Name())
+		fileIDs, pn, err := processIDFile(sourceDir, path.Join(sourceDir, f.Name()))
+		if err != nil {
+			return err
+		}
+
+		fmt.Printf("\n")
+
+		allIDs = append(allIDs, fileIDs...)
+
+		if pn != "" {
+			pkgname = pn
+		}
+	}
+
+	if pkgname == "" {
+		return errors.New("no package name found in any file")
+	}
+
+	err = os.WriteFile(destFile, []byte(fmtIDOutput(newChecksum, allIDs, pkgname)), 0o755)
+	if err != nil {
+		return err
+	}
+
+	res, err := cmdext.RunCommand("go", []string{"fmt", destFile}, langext.Ptr(2*time.Second))
+	if err != nil {
+		return err
+	}
+
+	if res.CommandTimedOut {
+		fmt.Println(res.StdCombined)
+		return errors.New("go fmt timed out")
+	}
+	if res.ExitCode != 0 {
+		fmt.Println(res.StdCombined)
+		return errors.New("go fmt did not succeed")
+	}
+
+	return nil
+}
+
+func processIDFile(basedir string, fn string) ([]IDDef, string, error) {
+	file, err := os.Open(fn)
+	if err != nil {
+		return nil, "", err
+	}
+
+	defer func() { _ = file.Close() }()
+
+	bin, err := io.ReadAll(file)
+	if err != nil {
+		return nil, "", err
+	}
+
+	lines := strings.Split(string(bin), "\n")
+
+	ids := make([]IDDef, 0)
+
+	pkgname := ""
+
+	for i, line := range lines {
+		if i == 0 && strings.HasPrefix(line, "// Code generated by") {
+			break
+		}
+
+		if match, ok := rexIDPackage.MatchFirst(line); i == 0 && ok {
+			pkgname = match.GroupByName("name").Value()
+			continue
+		}
+
+		if match, ok := rexIDDef.MatchFirst(line); ok {
+
+			rfp, err := filepath.Rel(basedir, fn)
+			if err != nil {
+				return nil, "", err
+			}
+
+			def := IDDef{
+				File:         fn,
+				FileRelative: rfp,
+				Name:         match.GroupByName("name").Value(),
+			}
+			fmt.Printf("Found ID definition { '%s' }\n", def.Name)
+			ids = append(ids, def)
+		}
+	}
+
+	return ids, pkgname, nil
+}
+
+func fmtIDOutput(cs string, ids []IDDef, pkgname string) string {
+	str := "// Code generated by id-generate.go DO NOT EDIT.\n"
+	str += "\n"
+	str += "package " + pkgname + "\n"
+	str += "\n"
+
+	str += "import \"go.mongodb.org/mongo-driver/bson\"" + "\n"
+	str += "import \"go.mongodb.org/mongo-driver/bson/bsontype\"" + "\n"
+	str += "import \"go.mongodb.org/mongo-driver/bson/primitive\"" + "\n"
+	str += "import \"gogs.mikescher.com/BlackForestBytes/goext/exerr\"" + "\n"
+	str += "\n"
+
+	str += "const ChecksumIDGenerator = \"" + cs + "\" // GoExtVersion: " + goext.GoextVersion + "\n"
+	str += "\n"
+
+	anyDef := langext.ArrFirstOrNil(ids, func(def IDDef) bool { return def.Name == "AnyID" || def.Name == "AnyId" })
+
+	for _, iddef := range ids {
+
+		str += "// ================================ " + iddef.Name + " (" + iddef.FileRelative + ") ================================" + "\n"
+		str += "" + "\n"
+
+		str += "func (i " + iddef.Name + ") MarshalBSONValue() (bsontype.Type, []byte, error) {" + "\n"
+		str += "	if objId, err := primitive.ObjectIDFromHex(string(i)); err == nil {" + "\n"
+		str += "		return bson.MarshalValue(objId)" + "\n"
+		str += "	} else {" + "\n"
+		str += "		return 0, nil, exerr.New(exerr.TypeMarshalEntityID, \"Failed to marshal " + iddef.Name + "(\"+i.String()+\") to ObjectId\").Str(\"value\", string(i)).Type(\"type\", i).Build()" + "\n"
+		str += "	}" + "\n"
+		str += "}" + "\n"
+
+		str += "" + "\n"
+
+		str += "func (i " + iddef.Name + ") String() string {" + "\n"
+		str += "	return string(i)" + "\n"
+		str += "}" + "\n"
+
+		str += "" + "\n"
+
+		str += "func (i " + iddef.Name + ") ObjID() (primitive.ObjectID, error) {" + "\n"
+		str += "	return primitive.ObjectIDFromHex(string(i))" + "\n"
+		str += "}" + "\n"
+
+		str += "" + "\n"
+
+		str += "func (i " + iddef.Name + ") Valid() bool {" + "\n"
+		str += "	_, err := primitive.ObjectIDFromHex(string(i))" + "\n"
+		str += "	return err == nil" + "\n"
+		str += "}" + "\n"
+
+		str += "" + "\n"
+
+		if anyDef != nil {
+			str += "func (i " + iddef.Name + ") AsAny() " + anyDef.Name + " {" + "\n"
+			str += "	return " + anyDef.Name + "(i)" + "\n"
+			str += "}" + "\n"
+
+			str += "" + "\n"
+		}
+
+		str += "func New" + iddef.Name + "() " + iddef.Name + " {" + "\n"
+		str += "	return " + iddef.Name + "(primitive.NewObjectID().Hex())" + "\n"
+		str += "}" + "\n"
+
+		str += "" + "\n"
+
+	}
+
+	return str
+}

cmdext/cmdrunner.go

@@ -133,9 +133,6 @@ func run(opt CommandRunner) (CommandResult, error) {
 
 	case <-stderrFailChan:
 		_ = cmd.Process.Kill()
-		for _, lstr := range opt.listener {
-			lstr.Timeout()
-		}
 
 		if fallback, ok := syncext.ReadChannelWithTimeout(outputChan, 32*time.Millisecond); ok {
 			// most of the time the cmd.Process.Kill() should also have finished the pipereader
@@ -160,7 +157,8 @@ func run(opt CommandRunner) (CommandResult, error) {
 		}
 
 	case outobj := <-outputChan:
-		if exiterr, ok := outobj.err.(*exec.ExitError); ok {
+		var exiterr *exec.ExitError
+		if errors.As(outobj.err, &exiterr) {
 			excode := exiterr.ExitCode()
 			for _, lstr := range opt.listener {
 				lstr.Finished(excode)

cmdext/cmdrunner_test.go

@@ -33,7 +33,7 @@ func TestStdout(t *testing.T) {
 
 func TestStderr(t *testing.T) {
 
-	res1, err := Runner("python").Arg("-c").Arg("import sys; print(\"error\", file=sys.stderr, end='')").Run()
+	res1, err := Runner("python3").Arg("-c").Arg("import sys; print(\"error\", file=sys.stderr, end='')").Run()
 	if err != nil {
 		t.Errorf("%v", err)
 	}
@@ -56,7 +56,7 @@ func TestStderr(t *testing.T) {
 }
 
 func TestStdcombined(t *testing.T) {
-	res1, err := Runner("python").
+	res1, err := Runner("python3").
 		Arg("-c").
 		Arg("import sys; import time; print(\"1\", file=sys.stderr, flush=True); time.sleep(0.1); print(\"2\", file=sys.stdout, flush=True); time.sleep(0.1); print(\"3\", file=sys.stderr, flush=True)").
 		Run()
@@ -82,7 +82,7 @@ func TestStdcombined(t *testing.T) {
 }
 
 func TestPartialRead(t *testing.T) {
-	res1, err := Runner("python").
+	res1, err := Runner("python3").
 		Arg("-c").
 		Arg("import sys; import time; print(\"first message\", flush=True); time.sleep(5); print(\"cant see me\", flush=True);").
 		Timeout(100 * time.Millisecond).
@@ -106,7 +106,7 @@ func TestPartialRead(t *testing.T) {
 }
 
 func TestPartialReadStderr(t *testing.T) {
-	res1, err := Runner("python").
+	res1, err := Runner("python3").
 		Arg("-c").
 		Arg("import sys; import time; print(\"first message\", file=sys.stderr, flush=True); time.sleep(5); print(\"cant see me\", file=sys.stderr, flush=True);").
 		Timeout(100 * time.Millisecond).
@@ -131,7 +131,7 @@ func TestPartialReadStderr(t *testing.T) {
 
 func TestReadUnflushedStdout(t *testing.T) {
 
-	res1, err := Runner("python").Arg("-c").Arg("import sys; print(\"message101\", file=sys.stdout, end='')").Run()
+	res1, err := Runner("python3").Arg("-c").Arg("import sys; print(\"message101\", file=sys.stdout, end='')").Run()
 	if err != nil {
 		t.Errorf("%v", err)
 	}
@@ -155,7 +155,7 @@ func TestReadUnflushedStdout(t *testing.T) {
 
 func TestReadUnflushedStderr(t *testing.T) {
 
-	res1, err := Runner("python").Arg("-c").Arg("import sys; print(\"message101\", file=sys.stderr, end='')").Run()
+	res1, err := Runner("python3").Arg("-c").Arg("import sys; print(\"message101\", file=sys.stderr, end='')").Run()
 	if err != nil {
 		t.Errorf("%v", err)
 	}
@@ -180,7 +180,7 @@ func TestReadUnflushedStderr(t *testing.T) {
 func TestPartialReadUnflushed(t *testing.T) {
 	t.SkipNow()
 
-	res1, err := Runner("python").
+	res1, err := Runner("python3").
 		Arg("-c").
 		Arg("import sys; import time; print(\"first message\", end=''); time.sleep(5); print(\"cant see me\", end='');").
 		Timeout(100 * time.Millisecond).
@@ -206,7 +206,7 @@ func TestPartialReadUnflushed(t *testing.T) {
 func TestPartialReadUnflushedStderr(t *testing.T) {
 	t.SkipNow()
 
-	res1, err := Runner("python").
+	res1, err := Runner("python3").
 		Arg("-c").
 		Arg("import sys; import time; print(\"first message\", file=sys.stderr, end=''); time.sleep(5); print(\"cant see me\", file=sys.stderr, end='');").
 		Timeout(100 * time.Millisecond).
@@ -231,7 +231,7 @@ func TestPartialReadUnflushedStderr(t *testing.T) {
 
 func TestListener(t *testing.T) {
 
-	res1, err := Runner("python").
+	res1, err := Runner("python3").
 		Arg("-c").
 		Arg("import sys;" +
 			"import time;" +
@@ -264,7 +264,7 @@ func TestListener(t *testing.T) {
 
 func TestLongStdout(t *testing.T) {
 
-	res1, err := Runner("python").
+	res1, err := Runner("python3").
 		Arg("-c").
 		Arg("import sys; import time; print(\"X\" * 125001 + \"\\n\"); print(\"Y\" * 125001 + \"\\n\"); print(\"Z\" * 125001 + \"\\n\");").
 		Timeout(5000 * time.Millisecond).
@@ -298,7 +298,7 @@ func TestFailOnTimeout(t *testing.T) {
 
 func TestFailOnStderr(t *testing.T) {
 
-	res1, err := Runner("python").Arg("-c").Arg("import sys; print(\"error\", file=sys.stderr, end='')").FailOnStderr().Run()
+	res1, err := Runner("python3").Arg("-c").Arg("import sys; print(\"error\", file=sys.stderr, end='')").FailOnStderr().Run()
 	if err == nil {
 		t.Errorf("no err")
 	}

cmdext/pipereader.go

@@ -32,8 +32,8 @@ func (pr *pipeReader) Read(listener []CommandListener) (string, string, string,
 	stdout := ""
 	go func() {
 		buf := make([]byte, 128)
-		for true {
-			n, out := pr.stdout.Read(buf)
+		for {
+			n, err := pr.stdout.Read(buf)
 			if n > 0 {
 				txt := string(buf[:n])
 				stdout += txt
@@ -42,11 +42,11 @@ func (pr *pipeReader) Read(listener []CommandListener) (string, string, string,
 					lstr.ReadRawStdout(buf[:n])
 				}
 			}
-			if out == io.EOF {
+			if err == io.EOF {
 				break
 			}
-			if out != nil {
-				errch <- out
+			if err != nil {
+				errch <- err
 				break
 			}
 		}
@@ -61,7 +61,7 @@ func (pr *pipeReader) Read(listener []CommandListener) (string, string, string,
 	stderr := ""
 	go func() {
 		buf := make([]byte, 128)
-		for true {
+		for {
 			n, err := pr.stderr.Read(buf)
 
 			if n > 0 {

dataext/tuple.go

@@ -0,0 +1,170 @@
+package dataext
+
+type ValueGroup interface {
+	TupleLength() int
+	TupleValues() []any
+}
+
+// ----------------------------------------------------------------------------
+
+type Single[T1 any] struct {
+	V1 T1
+}
+
+func (s Single[T1]) TupleLength() int {
+	return 1
+}
+
+func (s Single[T1]) TupleValues() []any {
+	return []any{s.V1}
+}
+
+// ----------------------------------------------------------------------------
+
+type Tuple[T1 any, T2 any] struct {
+	V1 T1
+	V2 T2
+}
+
+func (t Tuple[T1, T2]) TupleLength() int {
+	return 2
+}
+
+func (t Tuple[T1, T2]) TupleValues() []any {
+	return []any{t.V1, t.V2}
+}
+
+// ----------------------------------------------------------------------------
+
+type Triple[T1 any, T2 any, T3 any] struct {
+	V1 T1
+	V2 T2
+	V3 T3
+}
+
+func (t Triple[T1, T2, T3]) TupleLength() int {
+	return 3
+}
+
+func (t Triple[T1, T2, T3]) TupleValues() []any {
+	return []any{t.V1, t.V2, t.V3}
+}
+
+// ----------------------------------------------------------------------------
+
+type Quadruple[T1 any, T2 any, T3 any, T4 any] struct {
+	V1 T1
+	V2 T2
+	V3 T3
+	V4 T4
+}
+
+func (t Quadruple[T1, T2, T3, T4]) TupleLength() int {
+	return 4
+}
+
+func (t Quadruple[T1, T2, T3, T4]) TupleValues() []any {
+	return []any{t.V1, t.V2, t.V3, t.V4}
+}
+
+// ----------------------------------------------------------------------------
+
+type Quintuple[T1 any, T2 any, T3 any, T4 any, T5 any] struct {
+	V1 T1
+	V2 T2
+	V3 T3
+	V4 T4
+	V5 T5
+}
+
+func (t Quintuple[T1, T2, T3, T4, T5]) TupleLength() int {
+	return 5
+}
+
+func (t Quintuple[T1, T2, T3, T4, T5]) TupleValues() []any {
+	return []any{t.V1, t.V2, t.V3, t.V4, t.V5}
+
+}
+
+// ----------------------------------------------------------------------------
+
+type Sextuple[T1 any, T2 any, T3 any, T4 any, T5 any, T6 any] struct {
+	V1 T1
+	V2 T2
+	V3 T3
+	V4 T4
+	V5 T5
+	V6 T6
+}
+
+func (t Sextuple[T1, T2, T3, T4, T5, T6]) TupleLength() int {
+	return 6
+}
+
+func (t Sextuple[T1, T2, T3, T4, T5, T6]) TupleValues() []any {
+	return []any{t.V1, t.V2, t.V3, t.V4, t.V5, t.V6}
+
+}
+
+// ----------------------------------------------------------------------------
+
+type Septuple[T1 any, T2 any, T3 any, T4 any, T5 any, T6 any, T7 any] struct {
+	V1 T1
+	V2 T2
+	V3 T3
+	V4 T4
+	V5 T5
+	V6 T6
+	V7 T7
+}
+
+func (t Septuple[T1, T2, T3, T4, T5, T6, T7]) TupleLength() int {
+	return 7
+}
+
+func (t Septuple[T1, T2, T3, T4, T5, T6, T7]) TupleValues() []any {
+	return []any{t.V1, t.V2, t.V3, t.V4, t.V5, t.V6, t.V7}
+}
+
+// ----------------------------------------------------------------------------
+
+type Octuple[T1 any, T2 any, T3 any, T4 any, T5 any, T6 any, T7 any, T8 any] struct {
+	V1 T1
+	V2 T2
+	V3 T3
+	V4 T4
+	V5 T5
+	V6 T6
+	V7 T7
+	V8 T8
+}
+
+func (t Octuple[T1, T2, T3, T4, T5, T6, T7, T8]) TupleLength() int {
+	return 8
+}
+
+func (t Octuple[T1, T2, T3, T4, T5, T6, T7, T8]) TupleValues() []any {
+	return []any{t.V1, t.V2, t.V3, t.V4, t.V5, t.V6, t.V7, t.V8}
+}
+
+// ----------------------------------------------------------------------------
+
+type Nonuple[T1 any, T2 any, T3 any, T4 any, T5 any, T6 any, T7 any, T8 any, T9 any] struct {
+	V1 T1
+	V2 T2
+	V3 T3
+	V4 T4
+	V5 T5
+	V6 T6
+	V7 T7
+	V8 T8
+	V9 T9
+}
+
+func (t Nonuple[T1, T2, T3, T4, T5, T6, T7, T8, T9]) TupleLength() int {
+	return 9
+}
+
+func (t Nonuple[T1, T2, T3, T4, T5, T6, T7, T8, T9]) TupleValues() []any {
+	return []any{t.V1, t.V2, t.V3, t.V4, t.V5, t.V6, t.V7, t.V8, t.V9}
+}

exerr/data.go

@@ -42,6 +42,11 @@ var (
 	TypePanic          = NewType("PANIC", langext.Ptr(500))
 	TypeNotImplemented = NewType("NOT_IMPLEMENTED", langext.Ptr(500))
 
+	TypeMongoQuery        = NewType("MONGO_QUERY", langext.Ptr(500))
+	TypeCursorTokenDecode = NewType("CURSOR_TOKEN_DECODE", langext.Ptr(500))
+	TypeMongoFilter       = NewType("MONGO_FILTER", langext.Ptr(500))
+	TypeMongoReflection   = NewType("MONGO_REFLECTION", langext.Ptr(500))
+
 	TypeWrap = NewType("Wrap", nil)
 
 	TypeBindFailURI      = NewType("BINDFAIL_URI", langext.Ptr(400))
@@ -50,10 +55,12 @@ var (
 	TypeBindFailFormData = NewType("BINDFAIL_FORMDATA", langext.Ptr(400))
 	TypeBindFailHeader   = NewType("BINDFAIL_HEADER", langext.Ptr(400))
 
+	TypeMarshalEntityID = NewType("MARSHAL_ENTITY_ID", langext.Ptr(400))
+
 	TypeUnauthorized = NewType("UNAUTHORIZED", langext.Ptr(401))
 	TypeAuthFailed   = NewType("AUTH_FAILED", langext.Ptr(401))
 
-	// other values come from pkgconfig
+	// other values come the used package
 )
 
 var registeredTypes = dataext.SyncSet[string]{}

exerr/errinit.go

@@ -16,11 +16,11 @@ type ErrorPackageConfig struct {
 }
 
 type ErrorPackageConfigInit struct {
-	ZeroLogErrTraces       bool
-	ZeroLogAllTraces       bool
-	RecursiveErrors        bool
-	ExtendedGinOutput      bool
-	IncludeMetaInGinOutput bool
+	ZeroLogErrTraces       *bool
+	ZeroLogAllTraces       *bool
+	RecursiveErrors        *bool
+	ExtendedGinOutput      *bool
+	IncludeMetaInGinOutput *bool
 	ExtendGinOutput        func(err *ExErr, json map[string]any)
 	ExtendGinDataOutput    func(err *ExErr, depth int, json map[string]any)
 }
@@ -56,11 +56,11 @@ func Init(cfg ErrorPackageConfigInit) {
 	}
 
 	pkgconfig = ErrorPackageConfig{
-		ZeroLogErrTraces:       cfg.ZeroLogErrTraces,
-		ZeroLogAllTraces:       cfg.ZeroLogAllTraces,
-		RecursiveErrors:        cfg.RecursiveErrors,
-		ExtendedGinOutput:      cfg.ExtendedGinOutput,
-		IncludeMetaInGinOutput: cfg.IncludeMetaInGinOutput,
+		ZeroLogErrTraces:       langext.Coalesce(cfg.ZeroLogErrTraces, pkgconfig.ZeroLogErrTraces),
+		ZeroLogAllTraces:       langext.Coalesce(cfg.ZeroLogAllTraces, pkgconfig.ZeroLogAllTraces),
+		RecursiveErrors:        langext.Coalesce(cfg.RecursiveErrors, pkgconfig.RecursiveErrors),
+		ExtendedGinOutput:      langext.Coalesce(cfg.ExtendedGinOutput, pkgconfig.ExtendedGinOutput),
+		IncludeMetaInGinOutput: langext.Coalesce(cfg.IncludeMetaInGinOutput, pkgconfig.IncludeMetaInGinOutput),
 		ExtendGinOutput:        ego,
 		ExtendGinDataOutput:    egdo,
 	}

exerr/exerr.go

@@ -164,7 +164,7 @@ func (ee *ExErr) FormatLog(lvl LogPrintLevel) string {
 }
 
 func (ee *ExErr) ShortLog(evt *zerolog.Event) {
-	ee.Meta.Apply(evt).Msg(ee.FormatLog(LogPrintShort))
+	ee.Meta.Apply(evt, langext.Ptr(240)).Msg(ee.FormatLog(LogPrintShort))
 }
 
 // RecursiveMessage returns the message to show

exerr/meta.go

@@ -217,23 +217,35 @@ func (v MetaValue) ShortString(lim int) string {
 	return "(err)"
 }
 
-func (v MetaValue) Apply(key string, evt *zerolog.Event) *zerolog.Event {
+func (v MetaValue) Apply(key string, evt *zerolog.Event, limitLen *int) *zerolog.Event {
 	switch v.DataType {
 	case MDTString:
+		if limitLen == nil {
 			return evt.Str(key, v.Value.(string))
+		} else {
+			return evt.Str(key, langext.StrLimit(v.Value.(string), *limitLen, "..."))
+		}
 	case MDTID:
 		return evt.Str(key, v.Value.(IDWrap).Value)
 	case MDTAny:
 		if v.Value.(AnyWrap).IsError {
 			return evt.Str(key, "(err)")
 		} else {
+			if limitLen == nil {
 				return evt.Str(key, v.Value.(AnyWrap).Json)
+			} else {
+				return evt.Str(key, langext.StrLimit(v.Value.(AnyWrap).Json, *limitLen, "..."))
+			}
 		}
 	case MDTStringPtr:
 		if langext.IsNil(v.Value) {
 			return evt.Str(key, "<<null>>")
 		}
+		if limitLen == nil {
 			return evt.Str(key, langext.CoalesceString(v.Value.(*string), "<<null>>"))
+		} else {
+			return evt.Str(key, langext.StrLimit(langext.CoalesceString(v.Value.(*string), "<<null>>"), *limitLen, "..."))
+		}
 	case MDTInt:
 		return evt.Int(key, v.Value.(int))
 	case MDTInt8:
@@ -612,7 +624,18 @@ func (v MetaValue) rawValueForJson() any {
 		if v.Value.(AnyWrap).IsNil {
 			return nil
 		}
-		return v.Value.(AnyWrap).Serialize()
+		if v.Value.(AnyWrap).IsError {
+			return bson.M{"@error": true}
+		}
+		jsonobj := primitive.M{}
+		jsonarr := primitive.A{}
+		if err := json.Unmarshal([]byte(v.Value.(AnyWrap).Json), &jsonobj); err == nil {
+			return jsonobj
+		} else if err := json.Unmarshal([]byte(v.Value.(AnyWrap).Json), &jsonarr); err == nil {
+			return jsonarr
+		} else {
+			return bson.M{"type": v.Value.(AnyWrap).Type, "data": v.Value.(AnyWrap).Json}
+		}
 	}
 	if v.DataType == MDTID {
 		if v.Value.(IDWrap).IsNil {
@@ -691,9 +714,9 @@ func (mm MetaMap) Any() bool {
 	return len(mm) > 0
 }
 
-func (mm MetaMap) Apply(evt *zerolog.Event) *zerolog.Event {
+func (mm MetaMap) Apply(evt *zerolog.Event, limitLen *int) *zerolog.Event {
 	for key, val := range mm {
-		evt = val.Apply(key, evt)
+		evt = val.Apply(key, evt, limitLen)
 	}
 	return evt
 }

ginext/preContext.go

@@ -116,7 +116,7 @@ func (pctx PreContext) Start() (*AppContext, *gin.Context, *HTTPResponse) {
 	}
 
 	if pctx.header != nil {
-		if err := pctx.ginCtx.ShouldBindHeader(pctx.query); err != nil {
+		if err := pctx.ginCtx.ShouldBindHeader(pctx.header); err != nil {
 			err = exerr.Wrap(err, "Failed to read header").
 				WithType(exerr.TypeBindFailHeader).
 				Str("struct_type", fmt.Sprintf("%T", pctx.query)).

go.mod

@@ -6,26 +6,26 @@ require (
 	github.com/gin-gonic/gin v1.9.1
 	github.com/jmoiron/sqlx v1.3.5
 	github.com/rs/xid v1.5.0
-	github.com/rs/zerolog v1.30.0
+	github.com/rs/zerolog v1.31.0
 	go.mongodb.org/mongo-driver v1.12.1
-	golang.org/x/crypto v0.12.0
-	golang.org/x/sys v0.11.0
-	golang.org/x/term v0.11.0
+	golang.org/x/crypto v0.13.0
+	golang.org/x/sys v0.12.0
+	golang.org/x/term v0.12.0
 )
 
 require (
-	github.com/bytedance/sonic v1.10.0 // indirect
+	github.com/bytedance/sonic v1.10.1 // indirect
 	github.com/chenzhuoyu/base64x v0.0.0-20230717121745-296ad89f973d // indirect
 	github.com/chenzhuoyu/iasm v0.9.0 // indirect
 	github.com/gabriel-vasile/mimetype v1.4.2 // indirect
 	github.com/gin-contrib/sse v0.1.0 // indirect
 	github.com/go-playground/locales v0.14.1 // indirect
 	github.com/go-playground/universal-translator v0.18.1 // indirect
-	github.com/go-playground/validator/v10 v10.15.0 // indirect
+	github.com/go-playground/validator/v10 v10.15.5 // indirect
 	github.com/goccy/go-json v0.10.2 // indirect
 	github.com/golang/snappy v0.0.4 // indirect
 	github.com/json-iterator/go v1.1.12 // indirect
-	github.com/klauspost/compress v1.16.7 // indirect
+	github.com/klauspost/compress v1.17.0 // indirect
 	github.com/klauspost/cpuid/v2 v2.2.5 // indirect
 	github.com/leodido/go-urn v1.2.4 // indirect
 	github.com/mattn/go-colorable v0.1.13 // indirect
@@ -33,7 +33,7 @@ require (
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
 	github.com/modern-go/reflect2 v1.0.2 // indirect
 	github.com/montanaflynn/stats v0.7.1 // indirect
-	github.com/pelletier/go-toml/v2 v2.0.9 // indirect
+	github.com/pelletier/go-toml/v2 v2.1.0 // indirect
 	github.com/pkg/errors v0.9.1 // indirect
 	github.com/twitchyliquid64/golang-asm v0.15.1 // indirect
 	github.com/ugorji/go/codec v1.2.11 // indirect
@@ -41,10 +41,10 @@ require (
 	github.com/xdg-go/scram v1.1.2 // indirect
 	github.com/xdg-go/stringprep v1.0.4 // indirect
 	github.com/youmark/pkcs8 v0.0.0-20201027041543-1326539a0a0a // indirect
-	golang.org/x/arch v0.4.0 // indirect
-	golang.org/x/net v0.14.0 // indirect
+	golang.org/x/arch v0.5.0 // indirect
+	golang.org/x/net v0.15.0 // indirect
 	golang.org/x/sync v0.3.0 // indirect
-	golang.org/x/text v0.12.0 // indirect
+	golang.org/x/text v0.13.0 // indirect
 	google.golang.org/protobuf v1.31.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )

go.sum

@@ -6,6 +6,8 @@ github.com/bytedance/sonic v1.10.0-rc3 h1:uNSnscRapXTwUgTyOF0GVljYD08p9X/Lbr9Mwe
 github.com/bytedance/sonic v1.10.0-rc3/go.mod h1:iZcSUejdk5aukTND/Eu/ivjQuEL0Cu9/rf50Hi0u/g4=
 github.com/bytedance/sonic v1.10.0 h1:qtNZduETEIWJVIyDl01BeNxur2rW9OwTQ/yBqFRkKEk=
 github.com/bytedance/sonic v1.10.0/go.mod h1:iZcSUejdk5aukTND/Eu/ivjQuEL0Cu9/rf50Hi0u/g4=
+github.com/bytedance/sonic v1.10.1 h1:7a1wuFXL1cMy7a3f7/VFcEtriuXQnUBhtoVfOZiaysc=
+github.com/bytedance/sonic v1.10.1/go.mod h1:iZcSUejdk5aukTND/Eu/ivjQuEL0Cu9/rf50Hi0u/g4=
 github.com/chenzhuoyu/base64x v0.0.0-20211019084208-fb5309c8db06/go.mod h1:DH46F32mSOjUmXrMHnKwZdA8wcEefY7UVqBKYGjpdQY=
 github.com/chenzhuoyu/base64x v0.0.0-20221115062448-fe3a3abad311/go.mod h1:b583jCggY9gE99b6G5LEC39OIiVsWj+R97kbl5odCEk=
 github.com/chenzhuoyu/base64x v0.0.0-20230717121745-296ad89f973d h1:77cEq6EriyTZ0g/qfRdp61a3Uu/AWrgIq2s0ClJV1g0=
@@ -30,6 +32,14 @@ github.com/go-playground/validator/v10 v10.14.1 h1:9c50NUPC30zyuKprjL3vNZ0m5oG+j
 github.com/go-playground/validator/v10 v10.14.1/go.mod h1:9iXMNT7sEkjXb0I+enO7QXmzG6QCsPWY4zveKFVRSyU=
 github.com/go-playground/validator/v10 v10.15.0 h1:nDU5XeOKtB3GEa+uB7GNYwhVKsgjAR7VgKoNB6ryXfw=
 github.com/go-playground/validator/v10 v10.15.0/go.mod h1:9iXMNT7sEkjXb0I+enO7QXmzG6QCsPWY4zveKFVRSyU=
+github.com/go-playground/validator/v10 v10.15.1 h1:BSe8uhN+xQ4r5guV/ywQI4gO59C2raYcGffYWZEjZzM=
+github.com/go-playground/validator/v10 v10.15.1/go.mod h1:9iXMNT7sEkjXb0I+enO7QXmzG6QCsPWY4zveKFVRSyU=
+github.com/go-playground/validator/v10 v10.15.3 h1:S+sSpunYjNPDuXkWbK+x+bA7iXiW296KG4dL3X7xUZo=
+github.com/go-playground/validator/v10 v10.15.3/go.mod h1:9iXMNT7sEkjXb0I+enO7QXmzG6QCsPWY4zveKFVRSyU=
+github.com/go-playground/validator/v10 v10.15.4 h1:zMXza4EpOdooxPel5xDqXEdXG5r+WggpvnAKMsalBjs=
+github.com/go-playground/validator/v10 v10.15.4/go.mod h1:9iXMNT7sEkjXb0I+enO7QXmzG6QCsPWY4zveKFVRSyU=
+github.com/go-playground/validator/v10 v10.15.5 h1:LEBecTWb/1j5TNY1YYG2RcOUN3R7NLylN+x8TTueE24=
+github.com/go-playground/validator/v10 v10.15.5/go.mod h1:9iXMNT7sEkjXb0I+enO7QXmzG6QCsPWY4zveKFVRSyU=
 github.com/go-sql-driver/mysql v1.6.0/go.mod h1:DCzpHaOWr8IXmIStZouvnhqoel9Qv2LBy8hT2VhHyBg=
 github.com/goccy/go-json v0.10.2 h1:CrxCmQqYDkv1z7lO7Wbh2HN93uovUHgrECaO5ZrCXAU=
 github.com/goccy/go-json v0.10.2/go.mod h1:6MelG93GURQebXPDq3khkgXZkazVtN9CRI+MGFi0w8I=
@@ -50,6 +60,8 @@ github.com/klauspost/compress v1.13.6 h1:P76CopJELS0TiO2mebmnzgWaajssP/EszplttgQ
 github.com/klauspost/compress v1.13.6/go.mod h1:/3/Vjq9QcHkK5uEr5lBEmyoZ1iFhe47etQ6QUkpK6sk=
 github.com/klauspost/compress v1.16.7 h1:2mk3MPGNzKyxErAw8YaohYh69+pa4sIQSC0fPGCFR9I=
 github.com/klauspost/compress v1.16.7/go.mod h1:ntbaceVETuRiXiv4DpjP66DpAtAGkEQskQzEyD//IeE=
+github.com/klauspost/compress v1.17.0 h1:Rnbp4K9EjcDuVuHtd0dgA4qNuv9yKDYKK1ulpJwgrqM=
+github.com/klauspost/compress v1.17.0/go.mod h1:ntbaceVETuRiXiv4DpjP66DpAtAGkEQskQzEyD//IeE=
 github.com/klauspost/cpuid/v2 v2.0.9/go.mod h1:FInQzS24/EEf25PyTYn52gqo7WaD8xa0213Md/qVLRg=
 github.com/klauspost/cpuid/v2 v2.2.5 h1:0E5MSMDEoAulmXNFquVs//DdoomxaoTY1kUhbc/qbZg=
 github.com/klauspost/cpuid/v2 v2.2.5/go.mod h1:Lcz8mBdAVJIBVzewtcLocK12l3Y+JytZYpaMropDUws=
@@ -81,6 +93,8 @@ github.com/montanaflynn/stats v0.7.1 h1:etflOAAHORrCC44V+aR6Ftzort912ZU+YLiSTuV8
 github.com/montanaflynn/stats v0.7.1/go.mod h1:etXPPgVO6n31NxCd9KQUMvCM+ve0ruNzt6R8Bnaayow=
 github.com/pelletier/go-toml/v2 v2.0.9 h1:uH2qQXheeefCCkuBBSLi7jCiSmj3VRh2+Goq2N7Xxu0=
 github.com/pelletier/go-toml/v2 v2.0.9/go.mod h1:tJU2Z3ZkXwnxa4DPO899bsyIoywizdUvyaeZurnPPDc=
+github.com/pelletier/go-toml/v2 v2.1.0 h1:FnwAJ4oYMvbT/34k9zzHuZNrhlz48GB3/s6at6/MHO4=
+github.com/pelletier/go-toml/v2 v2.1.0/go.mod h1:tJU2Z3ZkXwnxa4DPO899bsyIoywizdUvyaeZurnPPDc=
 github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
 github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
@@ -93,6 +107,8 @@ github.com/rs/zerolog v1.29.1 h1:cO+d60CHkknCbvzEWxP0S9K6KqyTjrCNUy1LdQLCGPc=
 github.com/rs/zerolog v1.29.1/go.mod h1:Le6ESbR7hc+DP6Lt1THiV8CQSdkkNrd3R0XbEgp3ZBU=
 github.com/rs/zerolog v1.30.0 h1:SymVODrcRsaRaSInD9yQtKbtWqwsfoPcRff/oRXLj4c=
 github.com/rs/zerolog v1.30.0/go.mod h1:/tk+P47gFdPXq4QYjvCmT5/Gsug2nagsFWBWhAiSi1w=
+github.com/rs/zerolog v1.31.0 h1:FcTR3NnLWW+NnTwwhFWiJSZr4ECLpqCm6QsEnyvbV4A=
+github.com/rs/zerolog v1.31.0/go.mod h1:/7mN4D5sKwJLZQ2b/znpjC3/GQWY/xaDXUM0kKWRHss=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw=
 github.com/stretchr/objx v0.5.0/go.mod h1:Yh+to48EsGEfYuaHDzXPcE3xhTkx73EhmCGUpEOglKo=
@@ -133,6 +149,8 @@ go.mongodb.org/mongo-driver v1.12.1/go.mod h1:/rGBTebI3XYboVmgz+Wv3Bcbl3aD0QF9zl
 golang.org/x/arch v0.0.0-20210923205945-b76863e36670/go.mod h1:5om86z9Hs0C8fWVUuoMHwpExlXzs5Tkyp9hOrfG7pp8=
 golang.org/x/arch v0.4.0 h1:A8WCeEWhLwPBKNbFi5Wv5UTCBx5zzubnXDlMOFAzFMc=
 golang.org/x/arch v0.4.0/go.mod h1:5om86z9Hs0C8fWVUuoMHwpExlXzs5Tkyp9hOrfG7pp8=
+golang.org/x/arch v0.5.0 h1:jpGode6huXQxcskEIpOCvrU+tzo81b6+oFLUYXWtH/Y=
+golang.org/x/arch v0.5.0/go.mod h1:5om86z9Hs0C8fWVUuoMHwpExlXzs5Tkyp9hOrfG7pp8=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20200302210943-78000ba7a073/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
 golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
@@ -143,6 +161,8 @@ golang.org/x/crypto v0.11.0 h1:6Ewdq3tDic1mg5xRO4milcWCfMVQhI4NkqWWvqejpuA=
 golang.org/x/crypto v0.11.0/go.mod h1:xgJhtzW8F9jGdVFWZESrid1U1bjeNy4zgy5cRr/CIio=
 golang.org/x/crypto v0.12.0 h1:tFM/ta59kqch6LlvYnPa0yx5a83cL2nHflFhYKvv9Yk=
 golang.org/x/crypto v0.12.0/go.mod h1:NF0Gs7EO5K4qLn+Ylc+fih8BSTeIjAP05siRnAh98yw=
+golang.org/x/crypto v0.13.0 h1:mvySKfSWJ+UKUii46M40LOvyWfN0s2U+46/jDd0e6Ck=
+golang.org/x/crypto v0.13.0/go.mod h1:y6Z2r+Rw4iayiXXAIxJIDAJ1zMW4yaTpebo8fPOliYc=
 golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4=
 golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
@@ -155,6 +175,8 @@ golang.org/x/net v0.13.0 h1:Nvo8UFsZ8X3BhAC9699Z1j7XQ3rsZnUUm7jfBEk1ueY=
 golang.org/x/net v0.13.0/go.mod h1:zEVYFnQC7m/vmpQFELhcD1EWkZlX69l4oqgmer6hfKA=
 golang.org/x/net v0.14.0 h1:BONx9s002vGdD9umnlX1Po8vOZmrgH34qlHcD1MfK14=
 golang.org/x/net v0.14.0/go.mod h1:PpSgVXXLK0OxS0F31C1/tv6XNguvCrnXIDrFMspZIUI=
+golang.org/x/net v0.15.0 h1:ugBLEUaxABaB5AJqW9enI0ACdci2RUd4eP51NTBvuJ8=
+golang.org/x/net v0.15.0/go.mod h1:idbUs1IY1+zTqbi8yxTbhexhEEk5ur9LInksu6HrEpk=
 golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20210220032951-036812b2e83c h1:5KslGYwFpkhGh+Q16bwMP3cOontH8FOep7tGV86Y7SQ=
 golang.org/x/sync v0.0.0-20210220032951-036812b2e83c/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
@@ -182,6 +204,8 @@ golang.org/x/sys v0.10.0 h1:SqMFp9UcQJZa+pmYuAKjd9xq1f0j5rLcDIk0mj4qAsA=
 golang.org/x/sys v0.10.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.11.0 h1:eG7RXZHdqOJ1i+0lgLgCpSXAp6M3LYlAo6osgSi0xOM=
 golang.org/x/sys v0.11.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.12.0 h1:CM0HF96J0hcLAwsHPJZjfdNzs0gftsLfgKt57wWHJ0o=
+golang.org/x/sys v0.12.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
 golang.org/x/term v0.1.0 h1:g6Z6vPFA9dYBAF7DWcH6sCcOntplXsDKcliusYijMlw=
@@ -192,6 +216,8 @@ golang.org/x/term v0.10.0 h1:3R7pNqamzBraeqj/Tj8qt1aQ2HpmlC+Cx/qL/7hn4/c=
 golang.org/x/term v0.10.0/go.mod h1:lpqdcUyK/oCiQxvxVrppt5ggO2KCZ5QblwqPnfZ6d5o=
 golang.org/x/term v0.11.0 h1:F9tnn/DA/Im8nCwm+fX+1/eBwi4qFjRT++MhtVC4ZX0=
 golang.org/x/term v0.11.0/go.mod h1:zC9APTIj3jG3FdV/Ons+XE1riIZXG4aZ4GTHiPZJPIU=
+golang.org/x/term v0.12.0 h1:/ZfYdc3zq+q02Rv9vGqTeSItdzZTSNDmfTi0mBAuidU=
+golang.org/x/term v0.12.0/go.mod h1:owVbMEjm3cBLCHdkQu9b1opXd4ETQWc3BhuQGKgXgvU=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
@@ -204,6 +230,8 @@ golang.org/x/text v0.11.0 h1:LAntKIrcmeSKERyiOh0XMV39LXS8IE9UL2yP7+f5ij4=
 golang.org/x/text v0.11.0/go.mod h1:TvPlkZtksWOMsz7fbANvkp4WM8x/WCo/om8BMLbz+aE=
 golang.org/x/text v0.12.0 h1:k+n5B8goJNdU7hSvEtMUz3d1Q6D/XW4COJSJR6fN0mc=
 golang.org/x/text v0.12.0/go.mod h1:TvPlkZtksWOMsz7fbANvkp4WM8x/WCo/om8BMLbz+aE=
+golang.org/x/text v0.13.0 h1:ablQoSUd0tRdKxZewP80B+BaqeKJuVhuRxj/dkrun3k=
+golang.org/x/text v0.13.0/go.mod h1:TvPlkZtksWOMsz7fbANvkp4WM8x/WCo/om8BMLbz+aE=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc=

goextVersion.go

@@ -1,5 +1,5 @@
 package goext
 
-const GoextVersion = "0.0.241"
+const GoextVersion = "0.0.276"
 
-const GoextVersionTimestamp = "2023-08-14T15:54:50+0200"
+const GoextVersionTimestamp = "2023-10-05T10:59:20+0200"

gojson/encode.go

@@ -156,7 +156,6 @@ import (
 // an error.
 func Marshal(v any) ([]byte, error) {
 	e := newEncodeState()
-	defer encodeStatePool.Put(e)
 
 	err := e.marshal(v, encOpts{escapeHTML: true})
 	if err != nil {
@@ -164,6 +163,8 @@ func Marshal(v any) ([]byte, error) {
 	}
 	buf := append([]byte(nil), e.Bytes()...)
 
+	encodeStatePool.Put(e)
+
 	return buf, nil
 }
 
@@ -174,9 +175,9 @@ type IndentOpt struct {
 
 // MarshalSafeCollections is like Marshal except it will marshal nil maps and
 // slices as '{}' and '[]' respectfully instead of 'null'
-func MarshalSafeCollections(v interface{}, nilSafeSlices bool, nilSafeMaps bool, indent *IndentOpt) ([]byte, error) {
+func MarshalSafeCollections(v interface{}, nilSafeSlices bool, nilSafeMaps bool, indent *IndentOpt, filter *string) ([]byte, error) {
 	e := &encodeState{}
-	err := e.marshal(v, encOpts{escapeHTML: true, nilSafeSlices: nilSafeSlices, nilSafeMaps: nilSafeMaps})
+	err := e.marshal(v, encOpts{escapeHTML: true, nilSafeSlices: nilSafeSlices, nilSafeMaps: nilSafeMaps, filter: filter})
 	if err != nil {
 		return nil, err
 	}
@@ -393,6 +394,9 @@ type encOpts struct {
 	nilSafeSlices bool
 	// nilSafeMaps marshals a nil maps '{}' instead of 'null'
 	nilSafeMaps bool
+	// filter matches jsonfilter tag of struct
+	// marshals if no jsonfilter is set or otherwise if jsonfilter has the filter value
+	filter *string
 }
 
 type encoderFunc func(e *encodeState, v reflect.Value, opts encOpts)
@@ -777,6 +781,8 @@ FieldLoop:
 
 		if f.omitEmpty && isEmptyValue(fv) {
 			continue
+		} else if opts.filter != nil && len(f.jsonfilter) > 0 && !f.jsonfilter.Contains(*opts.filter) {
+			continue
 		}
 		e.WriteByte(next)
 		next = ','
@@ -1224,11 +1230,24 @@ type field struct {
 	index      []int
 	typ        reflect.Type
 	omitEmpty  bool
+	jsonfilter jsonfilter
 	quoted     bool
 
 	encoder encoderFunc
 }
 
+// jsonfilter stores the value of the jsonfilter struct tag
+type jsonfilter []string
+
+func (j jsonfilter) Contains(t string) bool {
+	for _, tag := range j {
+		if t == tag {
+			return true
+		}
+	}
+	return false
+}
+
 // byIndex sorts field by index sequence.
 type byIndex []field
 
@@ -1304,6 +1323,13 @@ func typeFields(t reflect.Type) structFields {
 				if !isValidTag(name) {
 					name = ""
 				}
+
+				var jsonfilter []string
+				jsonfilterTag := sf.Tag.Get("jsonfilter")
+				if isValidTag(jsonfilterTag) {
+					jsonfilter = strings.Split(jsonfilterTag, ",")
+				}
+
 				index := make([]int, len(f.index)+1)
 				copy(index, f.index)
 				index[len(f.index)] = i
@@ -1339,6 +1365,7 @@ func typeFields(t reflect.Type) structFields {
 						index:      index,
 						typ:        ft,
 						omitEmpty:  opts.Contains("omitempty"),
+						jsonfilter: jsonfilter,
 						quoted:     quoted,
 					}
 					field.nameBytes = []byte(field.name)

gojson/encode_test.go

@@ -1253,6 +1253,10 @@ func TestMarshalSafeCollections(t *testing.T) {
 		nilMapStruct struct {
 			NilMap map[string]interface{} `json:"nil_map"`
 		}
+		testWithFilter struct {
+			Test1 string `json:"test1" jsonfilter:"FILTERONE"`
+			Test2 string `json:"test2" jsonfilter:"FILTERTWO"`
+		}
 	)
 
 	tests := []struct {
@@ -1271,10 +1275,12 @@ func TestMarshalSafeCollections(t *testing.T) {
 		{map[string]interface{}{"1": 1, "2": 2, "3": 3}, "{\"1\":1,\"2\":2,\"3\":3}"},
 		{pNilMap, "null"},
 		{nilMapStruct{}, "{\"nil_map\":{}}"},
+		{testWithFilter{}, "{\"test1\":\"\"}"},
 	}
 
+	filter := "FILTERONE"
 	for i, tt := range tests {
-		b, err := MarshalSafeCollections(tt.in, true, true, nil)
+		b, err := MarshalSafeCollections(tt.in, true, true, nil, &filter)
 		if err != nil {
 			t.Errorf("test %d, unexpected failure: %v", i, err)
 		}

gojson/fold.go

@@ -97,7 +97,10 @@ func equalFoldRight(s, t []byte) bool {
 		t = t[size:]
 
 	}
-	return len(t) == 0
+	if len(t) > 0 {
+		return false
+	}
+	return true
 }
 
 // asciiEqualFold is a specialization of bytes.EqualFold for use when

gojson/fold_test.go

@@ -52,7 +52,9 @@ func TestFold(t *testing.T) {
 }
 
 func TestFoldAgainstUnicode(t *testing.T) {
-	var buf1, buf2 []byte
+	const bufSize = 5
+	buf1 := make([]byte, 0, bufSize)
+	buf2 := make([]byte, 0, bufSize)
 	var runes []rune
 	for i := 0x20; i <= 0x7f; i++ {
 		runes = append(runes, rune(i))
@@ -94,8 +96,12 @@ func TestFoldAgainstUnicode(t *testing.T) {
 				continue
 			}
 			for _, r2 := range runes {
-				buf1 = append(utf8.AppendRune(append(buf1[:0], 'x'), r), 'x')
-				buf2 = append(utf8.AppendRune(append(buf2[:0], 'x'), r2), 'x')
+				buf1 := append(buf1[:0], 'x')
+				buf2 := append(buf2[:0], 'x')
+				buf1 = buf1[:1+utf8.EncodeRune(buf1[1:bufSize], r)]
+				buf2 = buf2[:1+utf8.EncodeRune(buf2[1:bufSize], r2)]
+				buf1 = append(buf1, 'x')
+				buf2 = append(buf2, 'x')
 				want := bytes.EqualFold(buf1, buf2)
 				if got := ff.fold(buf1, buf2); got != want {
 					t.Errorf("%s(%q, %q) = %v; want %v", ff.name, buf1, buf2, got, want)

gojson/gionic.go

@@ -17,6 +17,7 @@ type GoJsonRender struct {
 	NilSafeSlices bool
 	NilSafeMaps   bool
 	Indent        *IndentOpt
+	Filter        *string
 }
 
 func (r GoJsonRender) Render(w http.ResponseWriter) error {
@@ -25,7 +26,7 @@ func (r GoJsonRender) Render(w http.ResponseWriter) error {
 		header["Content-Type"] = []string{"application/json; charset=utf-8"}
 	}
 
-	jsonBytes, err := MarshalSafeCollections(r.Data, r.NilSafeSlices, r.NilSafeMaps, r.Indent)
+	jsonBytes, err := MarshalSafeCollections(r.Data, r.NilSafeSlices, r.NilSafeMaps, r.Indent, r.Filter)
 	if err != nil {
 		panic(err)
 	}

gojson/number_test.go

@@ -116,3 +116,18 @@ func TestNumberIsValid(t *testing.T) {
 		}
 	}
 }
+
+func BenchmarkNumberIsValid(b *testing.B) {
+	s := "-61657.61667E+61673"
+	for i := 0; i < b.N; i++ {
+		isValidNumber(s)
+	}
+}
+
+func BenchmarkNumberIsValidRegexp(b *testing.B) {
+	var jsonNumberRegexp = regexp.MustCompile(`^-?(?:0|[1-9]\d*)(?:\.\d+)?(?:[eE][+-]?\d+)?$`)
+	s := "-61657.61667E+61673"
+	for i := 0; i < b.N; i++ {
+		jsonNumberRegexp.MatchString(s)
+	}
+}

gojson/scanner.go

@@ -594,7 +594,7 @@ func (s *scanner) error(c byte, context string) int {
 	return scanError
 }
 
-// quoteChar formats c as a quoted character literal.
+// quoteChar formats c as a quoted character literal
 func quoteChar(c byte) string {
 	// special cases - different from quoted strings
 	if c == '\'' {

gojson/stream.go

@@ -182,8 +182,6 @@ type Encoder struct {
 	w          io.Writer
 	err        error
 	escapeHTML bool
-	nilSafeSlices bool
-	nilSafeMaps   bool
 
 	indentBuf    *bytes.Buffer
 	indentPrefix string
@@ -204,11 +202,8 @@ func (enc *Encoder) Encode(v any) error {
 	if enc.err != nil {
 		return enc.err
 	}
-
 	e := newEncodeState()
-	defer encodeStatePool.Put(e)
-
-	err := e.marshal(v, encOpts{escapeHTML: enc.escapeHTML, nilSafeMaps: enc.nilSafeMaps, nilSafeSlices: enc.nilSafeSlices})
+	err := e.marshal(v, encOpts{escapeHTML: enc.escapeHTML})
 	if err != nil {
 		return err
 	}
@@ -236,6 +231,7 @@ func (enc *Encoder) Encode(v any) error {
 	if _, err = enc.w.Write(b); err != nil {
 		enc.err = err
 	}
+	encodeStatePool.Put(e)
 	return err
 }
 
@@ -247,13 +243,6 @@ func (enc *Encoder) SetIndent(prefix, indent string) {
 	enc.indentValue = indent
 }
 
-// SetNilSafeCollection specifies whether to represent nil slices and maps as
-// '[]' or '{}' respectfully (flag on) instead of 'null' (default) when marshaling json.
-func (enc *Encoder) SetNilSafeCollection(nilSafeSlices bool, nilSafeMaps bool) {
-	enc.nilSafeSlices = nilSafeSlices
-	enc.nilSafeMaps = nilSafeMaps
-}
-
 // SetEscapeHTML specifies whether problematic HTML characters
 // should be escaped inside JSON quoted strings.
 // The default behavior is to escape &, <, and > to \u0026, \u003c, and \u003e

gojson/stream_test.go

@@ -12,7 +12,6 @@ import (
 	"net/http"
 	"net/http/httptest"
 	"reflect"
-	"runtime/debug"
 	"strings"
 	"testing"
 )
@@ -42,7 +41,7 @@ false
 
 func TestEncoder(t *testing.T) {
 	for i := 0; i <= len(streamTest); i++ {
-		var buf strings.Builder
+		var buf bytes.Buffer
 		enc := NewEncoder(&buf)
 		// Check that enc.SetIndent("", "") turns off indentation.
 		enc.SetIndent(">", ".")
@@ -60,43 +59,6 @@ func TestEncoder(t *testing.T) {
 	}
 }
 
-func TestEncoderErrorAndReuseEncodeState(t *testing.T) {
-	// Disable the GC temporarily to prevent encodeState's in Pool being cleaned away during the test.
-	percent := debug.SetGCPercent(-1)
-	defer debug.SetGCPercent(percent)
-
-	// Trigger an error in Marshal with cyclic data.
-	type Dummy struct {
-		Name string
-		Next *Dummy
-	}
-	dummy := Dummy{Name: "Dummy"}
-	dummy.Next = &dummy
-
-	var buf bytes.Buffer
-	enc := NewEncoder(&buf)
-	if err := enc.Encode(dummy); err == nil {
-		t.Errorf("Encode(dummy) == nil; want error")
-	}
-
-	type Data struct {
-		A string
-		I int
-	}
-	data := Data{A: "a", I: 1}
-	if err := enc.Encode(data); err != nil {
-		t.Errorf("Marshal(%v) = %v", data, err)
-	}
-
-	var data2 Data
-	if err := Unmarshal(buf.Bytes(), &data2); err != nil {
-		t.Errorf("Unmarshal(%v) = %v", data2, err)
-	}
-	if data2 != data {
-		t.Errorf("expect: %v, but get: %v", data, data2)
-	}
-}
-
 var streamEncodedIndent = `0.1
 "hello"
 null
@@ -115,7 +77,7 @@ false
 `
 
 func TestEncoderIndent(t *testing.T) {
-	var buf strings.Builder
+	var buf bytes.Buffer
 	enc := NewEncoder(&buf)
 	enc.SetIndent(">", ".")
 	for _, v := range streamTest {
@@ -185,7 +147,7 @@ func TestEncoderSetEscapeHTML(t *testing.T) {
 			`{"bar":"\"<html>foobar</html>\""}`,
 		},
 	} {
-		var buf strings.Builder
+		var buf bytes.Buffer
 		enc := NewEncoder(&buf)
 		if err := enc.Encode(tt.v); err != nil {
 			t.Errorf("Encode(%s): %s", tt.name, err)
@@ -347,6 +309,21 @@ func TestBlocking(t *testing.T) {
 	}
 }
 
+func BenchmarkEncoderEncode(b *testing.B) {
+	b.ReportAllocs()
+	type T struct {
+		X, Y string
+	}
+	v := &T{"foo", "bar"}
+	b.RunParallel(func(pb *testing.PB) {
+		for pb.Next() {
+			if err := NewEncoder(io.Discard).Encode(v); err != nil {
+				b.Fatal(err)
+			}
+		}
+	})
+}
+
 type tokenStreamCase struct {
 	json      string
 	expTokens []any
@@ -495,45 +472,3 @@ func TestHTTPDecoding(t *testing.T) {
 		t.Errorf("err = %v; want io.EOF", err)
 	}
 }
-
-func TestEncoderSetNilSafeCollection(t *testing.T) {
-	var (
-		nilSlice  []interface{}
-		pNilSlice *[]interface{}
-		nilMap    map[string]interface{}
-		pNilMap   *map[string]interface{}
-	)
-	for _, tt := range []struct {
-		name        string
-		v           interface{}
-		want        string
-		rescuedWant string
-	}{
-		{"nilSlice", nilSlice, "null", "[]"},
-		{"nonNilSlice", []interface{}{}, "[]", "[]"},
-		{"sliceWithValues", []interface{}{1, 2, 3}, "[1,2,3]", "[1,2,3]"},
-		{"pNilSlice", pNilSlice, "null", "null"},
-		{"nilMap", nilMap, "null", "{}"},
-		{"nonNilMap", map[string]interface{}{}, "{}", "{}"},
-		{"mapWithValues", map[string]interface{}{"1": 1, "2": 2, "3": 3}, "{\"1\":1,\"2\":2,\"3\":3}", "{\"1\":1,\"2\":2,\"3\":3}"},
-		{"pNilMap", pNilMap, "null", "null"},
-	} {
-		var buf bytes.Buffer
-		enc := NewEncoder(&buf)
-		if err := enc.Encode(tt.v); err != nil {
-			t.Fatalf("Encode(%s): %s", tt.name, err)
-		}
-		if got := strings.TrimSpace(buf.String()); got != tt.want {
-			t.Errorf("Encode(%s) = %#q, want %#q", tt.name, got, tt.want)
-		}
-		buf.Reset()
-		enc.SetNilSafeCollection(true, true)
-		if err := enc.Encode(tt.v); err != nil {
-			t.Fatalf("SetNilSafeCollection(true) Encode(%s): %s", tt.name, err)
-		}
-		if got := strings.TrimSpace(buf.String()); got != tt.rescuedWant {
-			t.Errorf("SetNilSafeCollection(true) Encode(%s) = %#q, want %#q",
-				tt.name, got, tt.want)
-		}
-	}
-}

langext/array.go

@@ -400,7 +400,7 @@ func ArrCastErr[T1 any, T2 any](arr []T1) ([]T2, error) {
 		if vcast, ok := any(v).(T2); ok {
 			r[i] = vcast
 		} else {
-			return nil, errors.New(fmt.Sprintf("Cannot cast element %d of type %T to type %s", i, v, *new(T2)))
+			return nil, errors.New(fmt.Sprintf("Cannot cast element %d of type %T to type %v", i, v, *new(T2)))
 		}
 	}
 	return r, nil
@@ -412,7 +412,7 @@ func ArrCastPanic[T1 any, T2 any](arr []T1) []T2 {
 		if vcast, ok := any(v).(T2); ok {
 			r[i] = vcast
 		} else {
-			panic(fmt.Sprintf("Cannot cast element %d of type %T to type %s", i, v, *new(T2)))
+			panic(fmt.Sprintf("Cannot cast element %d of type %T to type %v", i, v, *new(T2)))
 		}
 	}
 	return r
@@ -476,4 +476,6 @@ func JoinString(arr []string, delimiter string) string {
 			str += delimiter
 		}
 	}
+
+	return str
 }

langext/array_test.go

@@ -0,0 +1,12 @@
+package langext
+
+import (
+	"gogs.mikescher.com/BlackForestBytes/goext/tst"
+	"testing"
+)
+
+func TestJoinString(t *testing.T) {
+	ids := []string{"1", "2", "3"}
+	res := JoinString(ids, ",")
+	tst.AssertEqual(t, res, "1,2,3")
+}

langext/base58_test.go

@@ -1,6 +1,7 @@
 package langext
 
 import (
+	"gogs.mikescher.com/BlackForestBytes/goext/tst"
 	"testing"
 )
 
@@ -59,9 +60,3 @@ func TestBase58FlickrDecoding(t *testing.T) {
 	tst.AssertEqual(t, _decStr(t, Base58FlickrEncoding, "9aJCVZR"), "Hello")
 	tst.AssertEqual(t, _decStr(t, Base58FlickrEncoding, "48638rmBiUzG5NKQoX4KcuE5C8paCFACnE28F7qDx13PRtennAmYSSJQ5gJSRihf5ZDyEQS4UimtihR7uARt4wbty2fW9duTQTM9n1DwUBevreyzGwu6W4YSgrvQgCPDxsiE1mCdZsF8VEBpuHHEiJyw"), "If debugging is the process of removing software bugs, then programming must be the process of putting them in.")
 }
-
-func tst.AssertEqual(t *testing.T, actual string, expected string) {
-	if actual != expected {
-		t.Errorf("values differ: Actual: '%v', Expected: '%v'", actual, expected)
-	}
-}

langext/panic.go

@@ -1,7 +1,10 @@
 package langext
 
+import "runtime/debug"
+
 type PanicWrappedErr struct {
 	panic any
+	Stack string
 }
 
 func (p PanicWrappedErr) Error() string {
@@ -15,7 +18,7 @@ func (p PanicWrappedErr) ReoveredObj() any {
 func RunPanicSafe(fn func()) (err error) {
 	defer func() {
 		if rec := recover(); rec != nil {
-			err = PanicWrappedErr{panic: rec}
+			err = PanicWrappedErr{panic: rec, Stack: string(debug.Stack())}
 		}
 	}()
 
@@ -27,7 +30,7 @@ func RunPanicSafe(fn func()) (err error) {
 func RunPanicSafeR1(fn func() error) (err error) {
 	defer func() {
 		if rec := recover(); rec != nil {
-			err = PanicWrappedErr{panic: rec}
+			err = PanicWrappedErr{panic: rec, Stack: string(debug.Stack())}
 		}
 	}()
 
@@ -38,7 +41,7 @@ func RunPanicSafeR2[T1 any](fn func() (T1, error)) (r1 T1, err error) {
 	defer func() {
 		if rec := recover(); rec != nil {
 			r1 = *new(T1)
-			err = PanicWrappedErr{panic: rec}
+			err = PanicWrappedErr{panic: rec, Stack: string(debug.Stack())}
 		}
 	}()
 
@@ -50,7 +53,7 @@ func RunPanicSafeR3[T1 any, T2 any](fn func() (T1, T2, error)) (r1 T1, r2 T2, er
 		if rec := recover(); rec != nil {
 			r1 = *new(T1)
 			r2 = *new(T2)
-			err = PanicWrappedErr{panic: rec}
+			err = PanicWrappedErr{panic: rec, Stack: string(debug.Stack())}
 		}
 	}()
 
@@ -63,7 +66,7 @@ func RunPanicSafeR4[T1 any, T2 any, T3 any](fn func() (T1, T2, T3, error)) (r1 T
 			r1 = *new(T1)
 			r2 = *new(T2)
 			r3 = *new(T3)
-			err = PanicWrappedErr{panic: rec}
+			err = PanicWrappedErr{panic: rec, Stack: string(debug.Stack())}
 		}
 	}()
 

rext/wrapper.go

@@ -13,6 +13,7 @@ type Regex interface {
 	ReplaceAllFunc(haystack string, repl func(string) string) string
 	RemoveAll(haystack string) string
 	GroupCount() int
+	String() string
 }
 
 type regexWrapper struct {
@@ -42,6 +43,7 @@ func W(rex *regexp.Regexp) Regex {
 
 // ---------------------------------------------------------------------------------------------------------------------
 
+// IsMatch reports whether the string s contains any match of the regular expression re.
 func (w *regexWrapper) IsMatch(haystack string) bool {
 	return w.rex.MatchString(haystack)
 }
@@ -88,6 +90,11 @@ func (w *regexWrapper) GroupCount() int {
 	return len(w.subnames) - 1
 }
 
+// String returns the source text used to compile the regular expression.
+func (w *regexWrapper) String() string {
+	return w.rex.String()
+}
+
 // ---------------------------------------------------------------------------------------------------------------------
 
 func (m RegexMatch) FullMatch() RegexMatchGroup {

rfctime/rfc3339.go

@@ -69,7 +69,7 @@ func (t *RFC3339Time) UnmarshalText(data []byte) error {
 }
 
 func (t *RFC3339Time) UnmarshalBSONValue(bt bsontype.Type, data []byte) error {
-	if bt == bsontype.Null {
+	if bt == bson.TypeNull {
 		// we can't set nil in UnmarshalBSONValue (so we use default(struct))
 		// Use mongoext.CreateGoExtBsonRegistry if you need to unmarsh pointer values
 		// https://stackoverflow.com/questions/75167597
@@ -77,7 +77,7 @@ func (t *RFC3339Time) UnmarshalBSONValue(bt bsontype.Type, data []byte) error {
 		*t = RFC3339Time{}
 		return nil
 	}
-	if bt != bsontype.DateTime {
+	if bt != bson.TypeDateTime {
 		return errors.New(fmt.Sprintf("cannot unmarshal %v into RFC3339Time", bt))
 	}
 	var tt time.Time

rfctime/rfc3339Nano.go

@@ -69,7 +69,7 @@ func (t *RFC3339NanoTime) UnmarshalText(data []byte) error {
 }
 
 func (t *RFC3339NanoTime) UnmarshalBSONValue(bt bsontype.Type, data []byte) error {
-	if bt == bsontype.Null {
+	if bt == bson.TypeNull {
 		// we can't set nil in UnmarshalBSONValue (so we use default(struct))
 		// Use mongoext.CreateGoExtBsonRegistry if you need to unmarsh pointer values
 		// https://stackoverflow.com/questions/75167597
@@ -77,7 +77,7 @@ func (t *RFC3339NanoTime) UnmarshalBSONValue(bt bsontype.Type, data []byte) erro
 		*t = RFC3339NanoTime{}
 		return nil
 	}
-	if bt != bsontype.DateTime {
+	if bt != bson.TypeDateTime {
 		return errors.New(fmt.Sprintf("cannot unmarshal %v into RFC3339NanoTime", bt))
 	}
 	var tt time.Time

rfctime/rfc3339Nano_test.go

@@ -2,6 +2,7 @@ package rfctime
 
 import (
 	"encoding/json"
+	"gogs.mikescher.com/BlackForestBytes/goext/timeext"
 	"gogs.mikescher.com/BlackForestBytes/goext/tst"
 	"testing"
 	"time"
@@ -13,7 +14,7 @@ func TestRoundtrip(t *testing.T) {
 		Value RFC3339NanoTime `json:"v"`
 	}
 
-	val1 := NewRFC3339Nano(time.Unix(0, 1675951556820915171))
+	val1 := NewRFC3339Nano(time.Unix(0, 1675951556820915171).In(timeext.TimezoneBerlin))
 	w1 := Wrap{val1}
 
 	jstr1, err := json.Marshal(w1)

syncext/atomic.go

@@ -27,10 +27,12 @@ func (a *AtomicBool) Get() bool {
 	return a.v
 }
 
-func (a *AtomicBool) Set(value bool) {
+func (a *AtomicBool) Set(value bool) bool {
 	a.lock.Lock()
 	defer a.lock.Unlock()
 
+	oldValue := a.v
+
 	a.v = value
 
 	for k, v := range a.listener {
@@ -42,6 +44,8 @@ func (a *AtomicBool) Set(value bool) {
 			delete(a.listener, k)
 		}
 	}
+
+	return oldValue
 }
 
 func (a *AtomicBool) Wait(waitFor bool) {

termext/termcolor_test.go

@@ -1,6 +1,7 @@
 package termext
 
 import (
+	"gogs.mikescher.com/BlackForestBytes/goext/tst"
 	"math/rand"
 	"testing"
 )
@@ -32,9 +33,3 @@ func TestColor(t *testing.T) {
 	tst.AssertEqual(t, CleanString(Gray("test")), "test")
 	tst.AssertEqual(t, CleanString(White("test")), "test")
 }
-
-func tst.AssertEqual(t *testing.T, actual string, expected string) {
-	if actual != expected {
-		t.Errorf("values differ: Actual: '%v', Expected: '%v'", actual, expected)
-	}
-}

timeext/calendarweek.go

@@ -0,0 +1,28 @@
+package timeext
+
+import "time"
+
+func WeekStart(year, week int) time.Time {
+
+	// https://stackoverflow.com/a/52303730/1761622
+
+	// Start from the middle of the year:
+	t := time.Date(year, 7, 1, 0, 0, 0, 0, time.UTC)
+
+	// Roll back to Monday:
+	if wd := t.Weekday(); wd == time.Sunday {
+		t = t.AddDate(0, 0, -6)
+	} else {
+		t = t.AddDate(0, 0, -int(wd)+1)
+	}
+
+	// Difference in weeks:
+	_, w := t.ISOWeek()
+	t = t.AddDate(0, 0, (week-w)*7)
+
+	return t
+}
+
+func WeekEnd(year, week int) time.Time {
+	return WeekStart(year, week).AddDate(0, 0, 7).Add(time.Duration(-1))
+}

timeext/calendarweek_test.go

@@ -0,0 +1,25 @@
+package timeext
+
+import (
+	"gogs.mikescher.com/BlackForestBytes/goext/tst"
+	"testing"
+	"time"
+)
+
+func TestWeekStart(t *testing.T) {
+
+	tst.AssertEqual(t, WeekStart(2018, 1).Format(time.RFC3339Nano), "2018-01-01T00:00:00Z")
+	tst.AssertEqual(t, WeekStart(2018, 2).Format(time.RFC3339Nano), "2018-01-08T00:00:00Z")
+	tst.AssertEqual(t, WeekStart(2019, 1).Format(time.RFC3339Nano), "2018-12-31T00:00:00Z")
+	tst.AssertEqual(t, WeekStart(2019, 2).Format(time.RFC3339Nano), "2019-01-07T00:00:00Z")
+
+}
+
+func TestWeekEnd(t *testing.T) {
+
+	tst.AssertEqual(t, WeekEnd(2018, 1).Format(time.RFC3339Nano), "2018-01-07T23:59:59.999999999Z")
+	tst.AssertEqual(t, WeekEnd(2018, 2).Format(time.RFC3339Nano), "2018-01-14T23:59:59.999999999Z")
+	tst.AssertEqual(t, WeekEnd(2019, 1).Format(time.RFC3339Nano), "2019-01-06T23:59:59.999999999Z")
+	tst.AssertEqual(t, WeekEnd(2019, 2).Format(time.RFC3339Nano), "2019-01-13T23:59:59.999999999Z")
+
+}

timeext/parser_test.go

@@ -7,56 +7,56 @@ import (
 
 func TestParseDurationShortString(t *testing.T) {
 
-	tst.AssertPDSSEqual(t, FromSeconds(1), "1s")
-	tst.AssertPDSSEqual(t, FromSeconds(1), "1sec")
-	tst.AssertPDSSEqual(t, FromSeconds(1), "1second")
-	tst.AssertPDSSEqual(t, FromSeconds(1), "1seconds")
-	tst.AssertPDSSEqual(t, FromSeconds(100), "100second")
-	tst.AssertPDSSEqual(t, FromSeconds(100), "100seconds")
-	tst.AssertPDSSEqual(t, FromSeconds(1883639.77), "1883639.77second")
-	tst.AssertPDSSEqual(t, FromSeconds(1883639.77), "1883639.77seconds")
-	tst.AssertPDSSEqual(t, FromSeconds(50), "50s")
-	tst.AssertPDSSEqual(t, FromSeconds(50), "50sec")
-	tst.AssertPDSSEqual(t, FromSeconds(1), "1second")
-	tst.AssertPDSSEqual(t, FromSeconds(50), "50seconds")
+	assertPDSSEqual(t, FromSeconds(1), "1s")
+	assertPDSSEqual(t, FromSeconds(1), "1sec")
+	assertPDSSEqual(t, FromSeconds(1), "1second")
+	assertPDSSEqual(t, FromSeconds(1), "1seconds")
+	assertPDSSEqual(t, FromSeconds(100), "100second")
+	assertPDSSEqual(t, FromSeconds(100), "100seconds")
+	assertPDSSEqual(t, FromSeconds(1883639.77), "1883639.77second")
+	assertPDSSEqual(t, FromSeconds(1883639.77), "1883639.77seconds")
+	assertPDSSEqual(t, FromSeconds(50), "50s")
+	assertPDSSEqual(t, FromSeconds(50), "50sec")
+	assertPDSSEqual(t, FromSeconds(1), "1second")
+	assertPDSSEqual(t, FromSeconds(50), "50seconds")
 
-	tst.AssertPDSSEqual(t, FromMinutes(10), "10m")
-	tst.AssertPDSSEqual(t, FromMinutes(10), "10min")
-	tst.AssertPDSSEqual(t, FromMinutes(1), "1minute")
-	tst.AssertPDSSEqual(t, FromMinutes(10), "10minutes")
-	tst.AssertPDSSEqual(t, FromMinutes(10.5), "10.5minutes")
+	assertPDSSEqual(t, FromMinutes(10), "10m")
+	assertPDSSEqual(t, FromMinutes(10), "10min")
+	assertPDSSEqual(t, FromMinutes(1), "1minute")
+	assertPDSSEqual(t, FromMinutes(10), "10minutes")
+	assertPDSSEqual(t, FromMinutes(10.5), "10.5minutes")
 
-	tst.AssertPDSSEqual(t, FromMilliseconds(100), "100ms")
-	tst.AssertPDSSEqual(t, FromMilliseconds(100), "100milliseconds")
-	tst.AssertPDSSEqual(t, FromMilliseconds(100), "100millisecond")
+	assertPDSSEqual(t, FromMilliseconds(100), "100ms")
+	assertPDSSEqual(t, FromMilliseconds(100), "100milliseconds")
+	assertPDSSEqual(t, FromMilliseconds(100), "100millisecond")
 
-	tst.AssertPDSSEqual(t, FromNanoseconds(99235), "99235ns")
-	tst.AssertPDSSEqual(t, FromNanoseconds(99235), "99235nanoseconds")
-	tst.AssertPDSSEqual(t, FromNanoseconds(99235), "99235nanosecond")
+	assertPDSSEqual(t, FromNanoseconds(99235), "99235ns")
+	assertPDSSEqual(t, FromNanoseconds(99235), "99235nanoseconds")
+	assertPDSSEqual(t, FromNanoseconds(99235), "99235nanosecond")
 
-	tst.AssertPDSSEqual(t, FromMicroseconds(99235), "99235us")
-	tst.AssertPDSSEqual(t, FromMicroseconds(99235), "99235microseconds")
-	tst.AssertPDSSEqual(t, FromMicroseconds(99235), "99235microsecond")
+	assertPDSSEqual(t, FromMicroseconds(99235), "99235us")
+	assertPDSSEqual(t, FromMicroseconds(99235), "99235microseconds")
+	assertPDSSEqual(t, FromMicroseconds(99235), "99235microsecond")
 
-	tst.AssertPDSSEqual(t, FromHours(1), "1h")
-	tst.AssertPDSSEqual(t, FromHours(1), "1hour")
-	tst.AssertPDSSEqual(t, FromHours(2), "2hours")
+	assertPDSSEqual(t, FromHours(1), "1h")
+	assertPDSSEqual(t, FromHours(1), "1hour")
+	assertPDSSEqual(t, FromHours(2), "2hours")
 
-	tst.AssertPDSSEqual(t, FromDays(1), "1d")
-	tst.AssertPDSSEqual(t, FromDays(1), "1day")
-	tst.AssertPDSSEqual(t, FromDays(10), "10days")
-	tst.AssertPDSSEqual(t, FromDays(1), "1days")
-	tst.AssertPDSSEqual(t, FromDays(10), "10day")
+	assertPDSSEqual(t, FromDays(1), "1d")
+	assertPDSSEqual(t, FromDays(1), "1day")
+	assertPDSSEqual(t, FromDays(10), "10days")
+	assertPDSSEqual(t, FromDays(1), "1days")
+	assertPDSSEqual(t, FromDays(10), "10day")
 
-	tst.AssertPDSSEqual(t, FromDays(1)+FromMinutes(10), "1d10m")
-	tst.AssertPDSSEqual(t, FromDays(1)+FromMinutes(10)+FromSeconds(200), "1d10m200sec")
-	tst.AssertPDSSEqual(t, FromDays(1)+FromMinutes(10), "1d:10m")
-	tst.AssertPDSSEqual(t, FromDays(1)+FromMinutes(10), "1d 10m")
-	tst.AssertPDSSEqual(t, FromDays(1)+FromMinutes(10), "1d,10m")
-	tst.AssertPDSSEqual(t, FromDays(1)+FromMinutes(10), "1d, 10m")
-	tst.AssertPDSSEqual(t, FromDays(1)+FromSeconds(1000), "1d   1000seconds")
+	assertPDSSEqual(t, FromDays(1)+FromMinutes(10), "1d10m")
+	assertPDSSEqual(t, FromDays(1)+FromMinutes(10)+FromSeconds(200), "1d10m200sec")
+	assertPDSSEqual(t, FromDays(1)+FromMinutes(10), "1d:10m")
+	assertPDSSEqual(t, FromDays(1)+FromMinutes(10), "1d 10m")
+	assertPDSSEqual(t, FromDays(1)+FromMinutes(10), "1d,10m")
+	assertPDSSEqual(t, FromDays(1)+FromMinutes(10), "1d, 10m")
+	assertPDSSEqual(t, FromDays(1)+FromSeconds(1000), "1d   1000seconds")
 
-	tst.AssertPDSSEqual(t, FromDays(1), "86400s")
+	assertPDSSEqual(t, FromDays(1), "86400s")
 }
 
 func assertPDSSEqual(t *testing.T, expected time.Duration, fmt string) {

timeext/time.go

@@ -22,6 +22,17 @@ func TimeToDatePart(t time.Time, tz *time.Location) time.Time {
 	return time.Date(t.Year(), t.Month(), t.Day(), 0, 0, 0, 0, t.Location())
 }
 
+// TimeToDayStart returns a timestamp at the start of the day which contains t (= 00:00:00)
+func TimeToDayStart(t time.Time, tz *time.Location) time.Time {
+	t = t.In(tz)
+	return time.Date(t.Year(), t.Month(), t.Day(), 0, 0, 0, 0, t.Location())
+}
+
+// TimeToDayEnd returns a timestamp at the end of the day which contains t (= 23:59:59)
+func TimeToDayEnd(t time.Time, tz *time.Location) time.Time {
+	return TimeToDayStart(t, tz).AddDate(0, 0, 1).Add(-1)
+}
+
 // TimeToWeekStart returns a timestamp at the start of the week which contains t (= Monday 00:00:00)
 func TimeToWeekStart(t time.Time, tz *time.Location) time.Time {
 	t = TimeToDatePart(t, tz)

tst/assertions.go

@@ -2,23 +2,59 @@ package tst
 
 import (
 	"encoding/hex"
+	"reflect"
 	"runtime/debug"
 	"testing"
 )
 
 func AssertEqual[T comparable](t *testing.T, actual T, expected T) {
+	t.Helper()
 	if actual != expected {
 		t.Errorf("values differ: Actual: '%v', Expected: '%v'", actual, expected)
 	}
 }
 
 func AssertNotEqual[T comparable](t *testing.T, actual T, expected T) {
+	t.Helper()
 	if actual == expected {
 		t.Errorf("values do not differ: Actual: '%v', Expected: '%v'", actual, expected)
 	}
 }
 
+func AssertDeepEqual[T any](t *testing.T, actual T, expected T) {
+	t.Helper()
+	if !reflect.DeepEqual(actual, expected) {
+		t.Errorf("values differ: Actual: '%v', Expected: '%v'", actual, expected)
+	}
+}
+
+func AssertSetDeepEqual[T any](t *testing.T, actual []T, expected []T) {
+	t.Helper()
+	if len(actual) != len(expected) {
+		t.Errorf("values differ in length: Actual (n=%d): '%v', Expected (n=%d): '%v'", len(actual), actual, len(expected), expected)
+	}
+
+	for _, a := range expected {
+		found := false
+		for _, b := range actual {
+			found = found || reflect.DeepEqual(a, b)
+		}
+		if !found {
+			t.Errorf("values differ: Element '%v' not found. Actual: '%v', Expected: '%v'", a, actual, expected)
+			return
+		}
+	}
+}
+
+func AssertNotDeepEqual[T any](t *testing.T, actual T, expected T) {
+	t.Helper()
+	if reflect.DeepEqual(actual, expected) {
+		t.Errorf("values do not differ: Actual: '%v', Expected: '%v'", actual, expected)
+	}
+}
+
 func AssertDeRefEqual[T comparable](t *testing.T, actual *T, expected T) {
+	t.Helper()
 	if actual == nil {
 		t.Errorf("values differ: Actual: NIL, Expected: '%v'", expected)
 	}
@@ -28,6 +64,7 @@ func AssertDeRefEqual[T comparable](t *testing.T, actual *T, expected T) {
 }
 
 func AssertPtrEqual[T comparable](t *testing.T, actual *T, expected *T) {
+	t.Helper()
 	if actual == nil && expected == nil {
 		return
 	}
@@ -47,6 +84,7 @@ func AssertPtrEqual[T comparable](t *testing.T, actual *T, expected *T) {
 }
 
 func AssertHexEqual(t *testing.T, expected string, actual []byte) {
+	t.Helper()
 	actualStr := hex.EncodeToString(actual)
 	if actualStr != expected {
 		t.Errorf("values differ: Actual: '%v', Expected: '%v'", actualStr, expected)
@@ -54,18 +92,21 @@ func AssertHexEqual(t *testing.T, expected string, actual []byte) {
 }
 
 func AssertTrue(t *testing.T, value bool) {
+	t.Helper()
 	if !value {
 		t.Error("value should be true\n" + string(debug.Stack()))
 	}
 }
 
 func AssertFalse(t *testing.T, value bool) {
+	t.Helper()
 	if value {
 		t.Error("value should be false\n" + string(debug.Stack()))
 	}
 }
 
 func AssertNoErr(t *testing.T, anerr error) {
+	t.Helper()
 	if anerr != nil {
 		t.Error("Function returned an error: " + anerr.Error() + "\n" + string(debug.Stack()))
 	}

wmo/collection.go

@@ -5,6 +5,7 @@ import (
 	"go.mongodb.org/mongo-driver/bson/bsontype"
 	"go.mongodb.org/mongo-driver/mongo"
 	ct "gogs.mikescher.com/BlackForestBytes/goext/cursortoken"
+	"gogs.mikescher.com/BlackForestBytes/goext/exerr"
 	"gogs.mikescher.com/BlackForestBytes/goext/langext"
 	"reflect"
 )
@@ -66,21 +67,25 @@ func (c *Coll[TData]) Indexes() mongo.IndexView {
 }
 
 func (c *Coll[TData]) Drop(ctx context.Context) error {
-	return c.coll.Drop(ctx)
+	err := c.coll.Drop(ctx)
+	if err != nil {
+		return exerr.Wrap(err, "failed to drop collection").Str("collection", c.Name()).Build()
+	}
+	return nil
 }
 
 func (c *Coll[TData]) createToken(fieldPrimary string, dirPrimary ct.SortDirection, fieldSecondary *string, dirSecondary *ct.SortDirection, lastEntity TData, pageSize *int) (ct.CursorToken, error) {
 
 	valuePrimary, err := c.getFieldValueAsTokenString(lastEntity, fieldPrimary)
 	if err != nil {
-		return ct.CursorToken{}, err
+		return ct.CursorToken{}, exerr.Wrap(err, "failed to get (primary) field-value as token-string").Type("lastEntity", lastEntity).Str("fieldPrimary", fieldPrimary).Build()
 	}
 
 	valueSeconary := ""
 	if fieldSecondary != nil && dirSecondary != nil {
 		valueSeconary, err = c.getFieldValueAsTokenString(lastEntity, *fieldSecondary)
 		if err != nil {
-			return ct.CursorToken{}, err
+			return ct.CursorToken{}, exerr.Wrap(err, "failed to get (secondary) field-value as token-string").Type("lastEntity", lastEntity).StrPtr("fieldSecondary", fieldSecondary).Build()
 		}
 	}
 

wmo/decoding.go

@@ -2,12 +2,17 @@ package wmo
 
 import (
 	"context"
+	"gogs.mikescher.com/BlackForestBytes/goext/exerr"
 )
 
 func (c *Coll[TData]) decodeSingle(ctx context.Context, dec Decodable) (TData, error) {
 	if c.customDecoder != nil {
 
-		return (*c.customDecoder)(ctx, dec)
+		res, err := (*c.customDecoder)(ctx, dec)
+		if err != nil {
+			return *new(TData), exerr.Wrap(err, "failed to decode single entity with custom-decoder").Type("decoder", *c.customDecoder).Build()
+		}
+		return res, nil
 
 	} else {
 
@@ -15,7 +20,7 @@ func (c *Coll[TData]) decodeSingle(ctx context.Context, dec Decodable) (TData, e
 
 		err := dec.Decode(&res)
 		if err != nil {
-			return *new(TData), err
+			return *new(TData), exerr.Wrap(err, "failed to decode single entity").Type("target-type", res).Build()
 		}
 
 		return res, nil
@@ -31,7 +36,7 @@ func (c *Coll[TData]) decodeAll(ctx context.Context, cursor Cursorable) ([]TData
 		for cursor.Next(ctx) {
 			entry, err := (*c.customDecoder)(ctx, cursor)
 			if err != nil {
-				return nil, err
+				return nil, exerr.Wrap(err, "failed to decode entity with custom-decoder").Type("decoder", *c.customDecoder).Build()
 			}
 			res = append(res, entry)
 		}
@@ -44,7 +49,7 @@ func (c *Coll[TData]) decodeAll(ctx context.Context, cursor Cursorable) ([]TData
 
 		err := cursor.All(ctx, &res)
 		if err != nil {
-			return nil, err
+			return nil, exerr.Wrap(err, "failed to batch-decode entity").Type("target-type", res).Build()
 		}
 
 		return res, nil

wmo/pagination.go

@@ -1,9 +1,9 @@
 package wmo
 
 import (
-	"errors"
 	"go.mongodb.org/mongo-driver/bson"
 	ct "gogs.mikescher.com/BlackForestBytes/goext/cursortoken"
+	"gogs.mikescher.com/BlackForestBytes/goext/exerr"
 )
 
 func CreatePagination[TData any](coll *Coll[TData], token ct.CursorToken, fieldPrimary string, sortPrimary ct.SortDirection, fieldSecondary *string, sortSecondary *ct.SortDirection, pageSize *int) ([]bson.D, error) {
@@ -13,7 +13,7 @@ func CreatePagination[TData any](coll *Coll[TData], token ct.CursorToken, fieldP
 
 	valuePrimary, err := coll.getTokenValueAsMongoType(token.ValuePrimary, fieldPrimary)
 	if err != nil {
-		return nil, err
+		return nil, exerr.Wrap(err, "failed to get (primary) token-value as mongo-type").Build()
 	}
 
 	if sortPrimary == ct.SortASC {
@@ -30,7 +30,7 @@ func CreatePagination[TData any](coll *Coll[TData], token ct.CursorToken, fieldP
 
 		valueSecondary, err := coll.getTokenValueAsMongoType(token.ValueSecondary, *fieldSecondary)
 		if err != nil {
-			return nil, err
+			return nil, exerr.Wrap(err, "failed to get (secondary) token-value as mongo-type").Build()
 		}
 
 		if *sortSecondary == ct.SortASC {
@@ -73,7 +73,7 @@ func CreatePagination[TData any](coll *Coll[TData], token ct.CursorToken, fieldP
 
 	} else {
 
-		return nil, errors.New("unknown ct mode: " + string(token.Mode))
+		return nil, exerr.New(exerr.TypeInternal, "unknown ct mode: "+string(token.Mode)).Any("token.Mode", token.Mode).Build()
 
 	}
 

wmo/queryAggregate.go

@@ -2,20 +2,20 @@ package wmo
 
 import (
 	"context"
-	"errors"
 	"go.mongodb.org/mongo-driver/mongo"
 	"go.mongodb.org/mongo-driver/mongo/options"
+	"gogs.mikescher.com/BlackForestBytes/goext/exerr"
 )
 
 func (c *Coll[TData]) Aggregate(ctx context.Context, pipeline mongo.Pipeline, opts ...*options.AggregateOptions) ([]TData, error) {
 	cursor, err := c.coll.Aggregate(ctx, pipeline, opts...)
 	if err != nil {
-		return nil, err
+		return nil, exerr.Wrap(err, "mongo-aggregation failed").Any("pipeline", pipeline).Any("options", opts).Str("collection", c.Name()).Build()
 	}
 
 	res, err := c.decodeAll(ctx, cursor)
 	if err != nil {
-		return nil, err
+		return nil, exerr.Wrap(err, "failed to decode values").Build()
 	}
 
 	return res, nil
@@ -24,13 +24,13 @@ func (c *Coll[TData]) Aggregate(ctx context.Context, pipeline mongo.Pipeline, op
 func (c *Coll[TData]) AggregateOneOpt(ctx context.Context, pipeline mongo.Pipeline, opts ...*options.AggregateOptions) (*TData, error) {
 	cursor, err := c.coll.Aggregate(ctx, pipeline, opts...)
 	if err != nil {
-		return nil, err
+		return nil, exerr.Wrap(err, "mongo-aggregation failed").Any("pipeline", pipeline).Any("options", opts).Str("collection", c.Name()).Build()
 	}
 
 	if cursor.Next(ctx) {
 		v, err := c.decodeSingle(ctx, cursor)
 		if err != nil {
-			return nil, err
+			return nil, exerr.Wrap(err, "failed to decode single value").Build()
 		}
 		return &v, nil
 	}
@@ -41,16 +41,16 @@ func (c *Coll[TData]) AggregateOneOpt(ctx context.Context, pipeline mongo.Pipeli
 func (c *Coll[TData]) AggregateOne(ctx context.Context, pipeline mongo.Pipeline, opts ...*options.AggregateOptions) (TData, error) {
 	cursor, err := c.coll.Aggregate(ctx, pipeline, opts...)
 	if err != nil {
-		return *new(TData), err
+		return *new(TData), exerr.Wrap(err, "mongo-aggregation failed").Any("pipeline", pipeline).Any("options", opts).Str("collection", c.Name()).Build()
 	}
 
 	if cursor.Next(ctx) {
 		v, err := c.decodeSingle(ctx, cursor)
 		if err != nil {
-			return *new(TData), err
+			return *new(TData), exerr.Wrap(err, "failed to decode single value").Build()
 		}
 		return v, nil
 	}
 
-	return *new(TData), errors.New("no document in result")
+	return *new(TData), exerr.Wrap(mongo.ErrNoDocuments, "no document in result").Build()
 }

wmo/queryDelete.go

@@ -4,12 +4,13 @@ import (
 	"context"
 	"go.mongodb.org/mongo-driver/bson"
 	"go.mongodb.org/mongo-driver/mongo"
+	"gogs.mikescher.com/BlackForestBytes/goext/exerr"
 )
 
 func (c *Coll[TData]) DeleteOneByID(ctx context.Context, id EntityID) error {
 	_, err := c.coll.DeleteOne(ctx, bson.M{"_id": id})
 	if err != nil {
-		return err
+		return exerr.Wrap(err, "mongo-query[delete-one-by-id] failed").Id("id", id).Str("collection", c.Name()).Build()
 	}
 
 	return nil
@@ -18,7 +19,7 @@ func (c *Coll[TData]) DeleteOneByID(ctx context.Context, id EntityID) error {
 func (c *Coll[TData]) DeleteOne(ctx context.Context, filterQuery bson.M) error {
 	_, err := c.coll.DeleteOne(ctx, filterQuery)
 	if err != nil {
-		return err
+		return exerr.Wrap(err, "mongo-query[delete-one] failed").Any("filterQuery", filterQuery).Str("collection", c.Name()).Build()
 	}
 
 	return nil
@@ -27,7 +28,7 @@ func (c *Coll[TData]) DeleteOne(ctx context.Context, filterQuery bson.M) error {
 func (c *Coll[TData]) DeleteMany(ctx context.Context, filterQuery bson.M) (*mongo.DeleteResult, error) {
 	res, err := c.coll.DeleteMany(ctx, filterQuery)
 	if err != nil {
-		return nil, err
+		return nil, exerr.Wrap(err, "mongo-query[delete-many] failed").Any("filterQuery", filterQuery).Str("collection", c.Name()).Build()
 	}
 
 	return res, nil

wmo/queryFind.go

@@ -2,13 +2,21 @@ package wmo
 
 import (
 	"context"
+	"errors"
 	"go.mongodb.org/mongo-driver/bson"
 	"go.mongodb.org/mongo-driver/mongo"
 	"go.mongodb.org/mongo-driver/mongo/options"
+	"gogs.mikescher.com/BlackForestBytes/goext/exerr"
 )
 
 func (c *Coll[TData]) FindOne(ctx context.Context, filter bson.M) (TData, error) {
 	mongoRes := c.coll.FindOne(ctx, filter)
+	if err := mongoRes.Err(); err != nil {
+		return *new(TData), exerr.Wrap(err, "mongo-query[find-one] failed").
+			Str("collection", c.Name()).
+			Any("filter", filter).
+			Build()
+	}
 
 	return c.decodeSingle(ctx, mongoRes)
 }
@@ -17,11 +25,11 @@ func (c *Coll[TData]) FindOneOpt(ctx context.Context, filter bson.M) (*TData, er
 	mongoRes := c.coll.FindOne(ctx, filter)
 
 	res, err := c.decodeSingle(ctx, mongoRes)
-	if err == mongo.ErrNoDocuments {
+	if errors.Is(err, mongo.ErrNoDocuments) {
 		return nil, nil
 	}
 	if err != nil {
-		return nil, err
+		return nil, exerr.Wrap(err, "mongo-query[find-one-opt] failed").Any("filter", filter).Str("collection", c.Name()).Build()
 	}
 
 	return &res, nil
@@ -29,6 +37,12 @@ func (c *Coll[TData]) FindOneOpt(ctx context.Context, filter bson.M) (*TData, er
 
 func (c *Coll[TData]) FindOneByID(ctx context.Context, id EntityID) (TData, error) {
 	mongoRes := c.coll.FindOne(ctx, bson.M{"_id": id})
+	if err := mongoRes.Err(); err != nil {
+		return *new(TData), exerr.Wrap(err, "mongo-query[find-one-by-id] failed").
+			Str("collection", c.Name()).
+			Id("id", id).
+			Build()
+	}
 
 	return c.decodeSingle(ctx, mongoRes)
 }
@@ -37,11 +51,11 @@ func (c *Coll[TData]) FindOneOptByID(ctx context.Context, id EntityID) (*TData,
 	mongoRes := c.coll.FindOne(ctx, bson.M{"_id": id})
 
 	res, err := c.decodeSingle(ctx, mongoRes)
-	if err == mongo.ErrNoDocuments {
+	if errors.Is(err, mongo.ErrNoDocuments) {
 		return nil, nil
 	}
 	if err != nil {
-		return nil, err
+		return nil, exerr.Wrap(err, "mongo-query[find-one-opt-by-id] failed").Id("id", id).Str("collection", c.Name()).Build()
 	}
 
 	return &res, nil
@@ -50,12 +64,12 @@ func (c *Coll[TData]) FindOneOptByID(ctx context.Context, id EntityID) (*TData,
 func (c *Coll[TData]) Find(ctx context.Context, filter bson.M, opts ...*options.FindOptions) ([]TData, error) {
 	cursor, err := c.coll.Find(ctx, filter, opts...)
 	if err != nil {
-		return nil, err
+		return nil, exerr.Wrap(err, "mongo-query[find-one-opt] failed").Any("filter", filter).Any("opts", opts).Str("collection", c.Name()).Build()
 	}
 
 	res, err := c.decodeAll(ctx, cursor)
 	if err != nil {
-		return nil, err
+		return nil, exerr.Wrap(err, "failed to decode values").Build()
 	}
 
 	return res, nil

wmo/queryInsert.go

@@ -4,13 +4,14 @@ import (
 	"context"
 	"go.mongodb.org/mongo-driver/bson"
 	"go.mongodb.org/mongo-driver/mongo"
+	"gogs.mikescher.com/BlackForestBytes/goext/exerr"
 	"gogs.mikescher.com/BlackForestBytes/goext/langext"
 )
 
 func (c *Coll[TData]) InsertOne(ctx context.Context, valueIn TData) (TData, error) {
 	insRes, err := c.coll.InsertOne(ctx, valueIn)
 	if err != nil {
-		return *new(TData), err
+		return *new(TData), exerr.Wrap(err, "mongo-query[insert-one] failed").Str("collection", c.Name()).Build()
 	}
 
 	mongoRes := c.coll.FindOne(ctx, bson.M{"_id": insRes.InsertedID})
@@ -19,5 +20,10 @@ func (c *Coll[TData]) InsertOne(ctx context.Context, valueIn TData) (TData, erro
 }
 
 func (c *Coll[TData]) InsertMany(ctx context.Context, valueIn []TData) (*mongo.InsertManyResult, error) {
-	return c.coll.InsertMany(ctx, langext.ArrayToInterface(valueIn))
+	insRes, err := c.coll.InsertMany(ctx, langext.ArrayToInterface(valueIn))
+	if err != nil {
+		return nil, exerr.Wrap(err, "mongo-query[insert-many] failed").Int("len(valueIn)", len(valueIn)).Str("collection", c.Name()).Build()
+	}
+
+	return insRes, nil
 }

wmo/queryList.go

@@ -5,6 +5,7 @@ import (
 	"go.mongodb.org/mongo-driver/bson"
 	"go.mongodb.org/mongo-driver/mongo"
 	ct "gogs.mikescher.com/BlackForestBytes/goext/cursortoken"
+	"gogs.mikescher.com/BlackForestBytes/goext/exerr"
 )
 
 func (c *Coll[TData]) List(ctx context.Context, filter ct.Filter, pageSize *int, inTok ct.CursorToken) ([]TData, ct.CursorToken, error) {
@@ -35,21 +36,31 @@ func (c *Coll[TData]) List(ctx context.Context, filter ct.Filter, pageSize *int,
 
 	paginationPipeline, err := CreatePagination(c, inTok, sortPrimary, sortDirPrimary, sortSecondary, sortDirSecondary, pageSize)
 	if err != nil {
-		return nil, ct.CursorToken{}, err
+		return nil, ct.CursorToken{}, exerr.
+			Wrap(err, "failed to create pagination").
+			WithType(exerr.TypeCursorTokenDecode).
+			Str("collection", c.Name()).
+			Any("inTok", inTok).
+			Any("sortPrimary", sortPrimary).
+			Any("sortDirPrimary", sortDirPrimary).
+			Any("sortSecondary", sortSecondary).
+			Any("sortDirSecondary", sortDirSecondary).
+			Any("pageSize", pageSize).
+			Build()
 	}
 
 	pipeline = append(pipeline, paginationPipeline...)
 
 	cursor, err := c.coll.Aggregate(ctx, pipeline)
 	if err != nil {
-		return nil, ct.CursorToken{}, err
+		return nil, ct.CursorToken{}, exerr.Wrap(err, "mongo-aggregation failed").Any("pipeline", pipeline).Str("collection", c.Name()).Build()
 	}
 
 	// fast branch
 	if pageSize == nil {
 		entries, err := c.decodeAll(ctx, cursor)
 		if err != nil {
-			return nil, ct.CursorToken{}, err
+			return nil, ct.CursorToken{}, exerr.Wrap(err, "failed to all-decode entities").Build()
 		}
 		return entries, ct.End(), nil
 	}
@@ -59,7 +70,7 @@ func (c *Coll[TData]) List(ctx context.Context, filter ct.Filter, pageSize *int,
 		var entry TData
 		entry, err = c.decodeSingle(ctx, cursor)
 		if err != nil {
-			return nil, ct.CursorToken{}, err
+			return nil, ct.CursorToken{}, exerr.Wrap(err, "failed to decode entity").Build()
 		}
 		entities = append(entities, entry)
 	}
@@ -74,7 +85,7 @@ func (c *Coll[TData]) List(ctx context.Context, filter ct.Filter, pageSize *int,
 
 	nextToken, err := c.createToken(sortPrimary, sortDirPrimary, sortSecondary, sortDirSecondary, last, pageSize)
 	if err != nil {
-		return nil, ct.CursorToken{}, err
+		return nil, ct.CursorToken{}, exerr.Wrap(err, "failed to create (out)-token").Build()
 	}
 
 	return entities, nextToken, nil
@@ -91,17 +102,31 @@ func (c *Coll[TData]) Count(ctx context.Context, filter ct.Filter) (int64, error
 
 	cursor, err := c.coll.Aggregate(ctx, pipeline)
 	if err != nil {
-		return 0, err
+		return 0, exerr.Wrap(err, "mongo-aggregation failed").Any("pipeline", pipeline).Str("collection", c.Name()).Build()
 	}
 
 	if cursor.Next(ctx) {
 		v := countRes{}
 		err = cursor.Decode(&v)
 		if err != nil {
-			return 0, err
+			return 0, exerr.Wrap(err, "failed to decode entity").Build()
 		}
 		return v.Count, nil
 	}
 
 	return 0, nil
 }
+
+func (c *Coll[TData]) ListWithCount(ctx context.Context, filter ct.Filter, pageSize *int, inTok ct.CursorToken) ([]TData, ct.CursorToken, int64, error) {
+	// NOTE: Possible optimization: Cache count in CursorToken, then fetch count only on first page.
+	count, err := c.Count(ctx, filter)
+	if err != nil {
+		return nil, ct.CursorToken{}, 0, err
+	}
+
+	data, token, err := c.List(ctx, filter, pageSize, inTok)
+	if err != nil {
+		return nil, ct.CursorToken{}, 0, err
+	}
+	return data, token, count, nil
+}

wmo/queryUpdate.go

@@ -5,10 +5,18 @@ import (
 	"go.mongodb.org/mongo-driver/bson"
 	"go.mongodb.org/mongo-driver/mongo"
 	"go.mongodb.org/mongo-driver/mongo/options"
+	"gogs.mikescher.com/BlackForestBytes/goext/exerr"
 )
 
 func (c *Coll[TData]) FindOneAndUpdate(ctx context.Context, filterQuery bson.M, updateQuery bson.M) (TData, error) {
 	mongoRes := c.coll.FindOneAndUpdate(ctx, filterQuery, updateQuery, options.FindOneAndUpdate().SetReturnDocument(options.After))
+	if err := mongoRes.Err(); err != nil {
+		return *new(TData), exerr.Wrap(err, "mongo-query[find-one-and-update] failed").
+			Str("collection", c.Name()).
+			Any("filterQuery", filterQuery).
+			Any("updateQuery", updateQuery).
+			Build()
+	}
 
 	return c.decodeSingle(ctx, mongoRes)
 }
@@ -16,7 +24,11 @@ func (c *Coll[TData]) FindOneAndUpdate(ctx context.Context, filterQuery bson.M,
 func (c *Coll[TData]) UpdateOne(ctx context.Context, filterQuery bson.M, updateQuery bson.M) error {
 	_, err := c.coll.UpdateOne(ctx, filterQuery, updateQuery)
 	if err != nil {
-		return err
+		return exerr.Wrap(err, "mongo-query[update-one] failed").
+			Str("collection", c.Name()).
+			Any("filterQuery", filterQuery).
+			Any("updateQuery", updateQuery).
+			Build()
 	}
 
 	return nil
@@ -25,7 +37,11 @@ func (c *Coll[TData]) UpdateOne(ctx context.Context, filterQuery bson.M, updateQ
 func (c *Coll[TData]) UpdateOneByID(ctx context.Context, id EntityID, updateQuery bson.M) error {
 	_, err := c.coll.UpdateOne(ctx, bson.M{"_id": id}, updateQuery)
 	if err != nil {
-		return err
+		return exerr.Wrap(err, "mongo-query[update-one-by-id] failed").
+			Str("collection", c.Name()).
+			Id("id", id).
+			Any("updateQuery", updateQuery).
+			Build()
 	}
 
 	return nil
@@ -34,7 +50,11 @@ func (c *Coll[TData]) UpdateOneByID(ctx context.Context, id EntityID, updateQuer
 func (c *Coll[TData]) UpdateMany(ctx context.Context, filterQuery bson.M, updateQuery bson.M) (*mongo.UpdateResult, error) {
 	res, err := c.coll.UpdateMany(ctx, filterQuery, updateQuery)
 	if err != nil {
-		return nil, err
+		return nil, exerr.Wrap(err, "mongo-query[update-many] failed").
+			Str("collection", c.Name()).
+			Any("filterQuery", filterQuery).
+			Any("updateQuery", updateQuery).
+			Build()
 	}
 
 	return res, nil
@@ -43,14 +63,23 @@ func (c *Coll[TData]) UpdateMany(ctx context.Context, filterQuery bson.M, update
 func (c *Coll[TData]) ReplaceOne(ctx context.Context, filterQuery bson.M, value TData) error {
 	_, err := c.coll.UpdateOne(ctx, filterQuery, bson.M{"$set": value})
 	if err != nil {
-		return err
+		return exerr.Wrap(err, "mongo-query[replace-one] failed").
+			Str("collection", c.Name()).
+			Any("filterQuery", filterQuery).
+			Build()
 	}
 
 	return nil
 }
 
 func (c *Coll[TData]) FindOneAndReplace(ctx context.Context, filterQuery bson.M, value TData) (TData, error) {
-	mongoRes := c.coll.FindOneAndUpdate(ctx, filterQuery, bson.M{"$set": value}, options.FindOneAndUpdate().SetReturnDocument(options.After))
+	mongoRes := c.coll.FindOneAndReplace(ctx, filterQuery, value, options.FindOneAndReplace().SetReturnDocument(options.After))
+	if err := mongoRes.Err(); err != nil {
+		return *new(TData), exerr.Wrap(err, "mongo-query[find-one-and-update] failed").
+			Str("collection", c.Name()).
+			Any("filterQuery", filterQuery).
+			Build()
+	}
 
 	return c.decodeSingle(ctx, mongoRes)
 }

wmo/reflection.go

@@ -1,7 +1,7 @@
 package wmo
 
 import (
-	"errors"
+	"gogs.mikescher.com/BlackForestBytes/goext/exerr"
 	"gogs.mikescher.com/BlackForestBytes/goext/langext"
 	"gogs.mikescher.com/BlackForestBytes/goext/reflectext"
 	"reflect"
@@ -25,7 +25,7 @@ func (c *Coll[TData]) EnsureInitializedReflection(v TData) {
 
 	m := make(map[string]fullTypeRef)
 
-	c.initFields("", rval, m, make([]int, 0))
+	c.initFields("", rval.Type(), m, make([]int, 0), make([]reflect.Type, 0))
 
 	c.implDataTypeMap[rval.Type()] = m
 }
@@ -50,20 +50,16 @@ func (c *Coll[TData]) init() {
 		c.implDataTypeMap = make(map[reflect.Type]map[string]fullTypeRef)
 
 		v := reflect.ValueOf(example)
-		c.initFields("", v, c.dataTypeMap, make([]int, 0))
+		c.initFields("", v.Type(), c.dataTypeMap, make([]int, 0), make([]reflect.Type, 0))
 
 	}
 
 }
 
-func (c *Coll[TData]) initFields(prefix string, rval reflect.Value, m map[string]fullTypeRef, idxarr []int) {
-
-	rtyp := rval.Type()
-
+func (c *Coll[TData]) initFields(prefix string, rtyp reflect.Type, m map[string]fullTypeRef, idxarr []int, typesInPath []reflect.Type) {
 	for i := 0; i < rtyp.NumField(); i++ {
 
 		rsfield := rtyp.Field(i)
-		rvfield := rval.Field(i)
 
 		if !rsfield.IsExported() {
 			continue
@@ -91,21 +87,21 @@ func (c *Coll[TData]) initFields(prefix string, rval reflect.Value, m map[string
 		newIdxArr := langext.ArrCopy(idxarr)
 		newIdxArr = append(newIdxArr, i)
 
-		if langext.InArray("inline", bsontags) && rvfield.Kind() == reflect.Struct {
+		if langext.InArray("inline", bsontags) && rsfield.Type.Kind() == reflect.Struct {
 
 			// pass-through field
-			c.initFields(prefix, rvfield, m, newIdxArr)
+			c.initFields(prefix, rsfield.Type, m, newIdxArr, typesInPath)
 
 		} else {
 
-			if rvfield.Type().Kind() == reflect.Pointer {
+			if rsfield.Type.Kind() == reflect.Pointer {
 
 				m[fullKey] = fullTypeRef{
 					IsPointer:      true,
-					RealType:       rvfield.Type(),
-					Kind:           rvfield.Type().Elem().Kind(),
-					Type:           rvfield.Type().Elem(),
-					UnderlyingType: reflectext.Underlying(rvfield.Type().Elem()),
+					RealType:       rsfield.Type,
+					Kind:           rsfield.Type.Elem().Kind(),
+					Type:           rsfield.Type.Elem(),
+					UnderlyingType: reflectext.Underlying(rsfield.Type.Elem()),
 					Name:           rsfield.Name,
 					Index:          newIdxArr,
 				}
@@ -114,20 +110,37 @@ func (c *Coll[TData]) initFields(prefix string, rval reflect.Value, m map[string
 
 				m[fullKey] = fullTypeRef{
 					IsPointer:      false,
-					RealType:       rvfield.Type(),
-					Kind:           rvfield.Type().Kind(),
-					Type:           rvfield.Type(),
-					UnderlyingType: reflectext.Underlying(rvfield.Type()),
+					RealType:       rsfield.Type,
+					Kind:           rsfield.Type.Kind(),
+					Type:           rsfield.Type,
+					UnderlyingType: reflectext.Underlying(rsfield.Type),
 					Name:           rsfield.Name,
 					Index:          newIdxArr,
 				}
 
 			}
 
-			if rvfield.Kind() == reflect.Struct {
-				c.initFields(fullKey+".", rvfield, m, newIdxArr)
+			if rsfield.Type.Kind() == reflect.Struct {
+				c.initFields(fullKey+".", rsfield.Type, m, newIdxArr, typesInPath)
 			}
 
+			if rsfield.Type.Kind() == reflect.Pointer && rsfield.Type.Elem().Kind() == reflect.Struct {
+				innerType := rsfield.Type.Elem()
+
+				// check if there is recursion
+				recursion := false
+				for _, typ := range typesInPath {
+					recursion = recursion || (typ == innerType)
+				}
+
+				if !recursion {
+					// Store all seen types before that deref a pointer to prevent endless recursion
+					newTypesInPath := make([]reflect.Type, len(typesInPath))
+					copy(newTypesInPath, typesInPath)
+					newTypesInPath = append(newTypesInPath, rtyp)
+					c.initFields(fullKey+".", innerType, m, newIdxArr, newTypesInPath)
+				}
+			}
 		}
 
 	}
@@ -138,7 +151,7 @@ func (c *Coll[TData]) getTokenValueAsMongoType(value string, fieldName string) (
 
 	fref, err := c.getFieldType(fieldName)
 	if err != nil {
-		return nil, err
+		return nil, exerr.Wrap(err, "failed to get-field-type").Str("fieldName", fieldName).Build()
 	}
 
 	pss := reflectext.PrimitiveStringSerializer{}
@@ -151,7 +164,7 @@ func (c *Coll[TData]) getFieldValueAsTokenString(entity TData, fieldName string)
 
 	realValue, err := c.getFieldValue(entity, fieldName)
 	if err != nil {
-		return "", err
+		return "", exerr.Wrap(err, "failed to get-field-value").Str("fieldName", fieldName).Build()
 	}
 
 	pss := reflectext.PrimitiveStringSerializer{}
@@ -169,14 +182,14 @@ func (c *Coll[TData]) getFieldType(fieldName string) (fullTypeRef, error) {
 			}
 		}
 
-		return fullTypeRef{}, errors.New("unknown field: '" + fieldName + "' (in any impl)")
+		return fullTypeRef{}, exerr.New(exerr.TypeMongoReflection, "unknown field: '"+fieldName+"' (in any impl)").Str("fieldName", fieldName).Build()
 
 	} else {
 
 		if r, ok := c.dataTypeMap[fieldName]; ok {
 			return r, nil
 		} else {
-			return fullTypeRef{}, errors.New("unknown field: '" + fieldName + "'")
+			return fullTypeRef{}, exerr.New(exerr.TypeMongoReflection, "unknown field: '"+fieldName+"'").Str("fieldName", fieldName).Build()
 		}
 
 	}
@@ -196,10 +209,10 @@ func (c *Coll[TData]) getFieldValue(data TData, fieldName string) (any, error) {
 				rval := reflect.ValueOf(data)
 				return rval.FieldByIndex(fref.Index).Interface(), nil
 			} else {
-				return nil, errors.New("unknown bson field '" + fieldName + "' in type '" + rval.Type().String() + "'")
+				return nil, exerr.New(exerr.TypeMongoReflection, "unknown bson field '"+fieldName+"' in type '"+rval.Type().String()+"'").Str("fieldName", fieldName).Type("rval", rval).Build()
 			}
 		} else {
-			return nil, errors.New("unknown TData type: '" + rval.Type().String() + "'")
+			return nil, exerr.New(exerr.TypeMongoReflection, "unknown TData type: '"+rval.Type().String()+"'").Type("rval", rval).Build()
 		}
 
 	} else {
@@ -208,7 +221,7 @@ func (c *Coll[TData]) getFieldValue(data TData, fieldName string) (any, error) {
 			rval := reflect.ValueOf(data)
 			return rval.FieldByIndex(fref.Index).Interface(), nil
 		} else {
-			return nil, errors.New("unknown bson field '" + fieldName + "'")
+			return nil, exerr.New(exerr.TypeMongoReflection, "unknown bson field '"+fieldName+"'").Str("fieldName", fieldName).Build()
 		}
 
 	}

wmo/reflection_test.go

@@ -23,6 +23,9 @@ func TestReflectionGetFieldType(t *testing.T) {
 		Sub   struct {
 			A string `bson:"a"`
 		} `bson:"sub"`
+		SubPtr *struct {
+			A string `bson:"a"`
+		} `bson:"subPtr"`
 		Str   string                  `bson:"str"`
 		Ptr   *int                    `bson:"ptr"`
 		MDate rfctime.RFC3339NanoTime `bson:"mdate"`
@@ -43,6 +46,11 @@ func TestReflectionGetFieldType(t *testing.T) {
 		}{
 			A: "2",
 		},
+		SubPtr: &struct {
+			A string `bson:"a"`
+		}{
+			A: "4",
+		},
 		Str:   "3",
 		Ptr:   langext.Ptr(4),
 		MDate: t1,
@@ -82,6 +90,12 @@ func TestReflectionGetFieldType(t *testing.T) {
 	tst.AssertEqual(t, gft("sub.a").IsPointer, false)
 	tst.AssertEqual(t, gfv("sub.a").(string), "2")
 
+	tst.AssertEqual(t, gft("subPtr.a").Kind.String(), "string")
+	tst.AssertEqual(t, gft("subPtr.a").Type.String(), "string")
+	tst.AssertEqual(t, gft("subPtr.a").Name, "A")
+	tst.AssertEqual(t, gft("subPtr.a").IsPointer, false)
+	tst.AssertEqual(t, gfv("subPtr.a").(string), "4")
+
 	tst.AssertEqual(t, gft("str").Kind.String(), "string")
 	tst.AssertEqual(t, gft("str").Type.String(), "string")
 	tst.AssertEqual(t, gft("str").Name, "Str")
@@ -99,16 +113,25 @@ func TestReflectionGetTokenValueAsMongoType(t *testing.T) {
 
 	type IDType string
 
+	type RecurseiveType struct {
+		Other int             `bson:"other"`
+		Inner *RecurseiveType `bson:"inner"`
+	}
+
 	type TestData struct {
 		ID    IDType    `bson:"_id"`
 		CDate time.Time `bson:"cdate"`
 		Sub   struct {
 			A string `bson:"a"`
 		} `bson:"sub"`
+		SubPtr *struct {
+			A string `bson:"a"`
+		} `bson:"subPtr"`
 		Str   string                  `bson:"str"`
 		Ptr   *int                    `bson:"ptr"`
 		Num   int                     `bson:"num"`
 		MDate rfctime.RFC3339NanoTime `bson:"mdate"`
+		Rec   RecurseiveType          `bson:"rec"`
 	}
 
 	coll := W[TestData](&mongo.Collection{})
@@ -130,6 +153,9 @@ func TestReflectionGetTokenValueAsMongoType(t *testing.T) {
 	}
 
 	tst.AssertEqual(t, gtvasmt("hello", "str").(string), "hello")
+	tst.AssertEqual(t, gtvasmt("hello", "sub.a").(string), "hello")
+	tst.AssertEqual(t, gtvasmt("hello", "subPtr.a").(string), "hello")
+	tst.AssertEqual(t, gtvasmt("4", "rec.other").(int), 4)
 	tst.AssertEqual(t, gtvasmt("4", "num").(int), 4)
 	tst.AssertEqual(t, gtvasmt("asdf", "_id").(IDType), "asdf")
 	tst.AssertEqual(t, gtvasmt("", "ptr").(*int), nil)