[chore] remove vendor

8 files changed, 0 insertions, 641 deletions

diff --git a/vendor/github.com/ncruces/go-sqlite3/util/sql3util/README.md b/vendor/github.com/ncruces/go-sqlite3/util/sql3util/README.md
deleted file mode 100644
index 9f47f5a9f..000000000
--- a/vendor/github.com/ncruces/go-sqlite3/util/sql3util/README.md
+++ /dev/null
@@ -1,9 +0,0 @@
-# SQLite utility functions 
-
-This package implements assorted SQLite utilities
-useful to extension writers.
-
-It also wraps a [parser](https://github.com/marcobambini/sqlite-createtable-parser)
-for the [`CREATE`](https://sqlite.org/lang_createtable.html) and
-[`ALTER TABLE`](https://sqlite.org/lang_altertable.html) commands,
-created by [Marco Bambini](https://github.com/marcobambini).
\ No newline at end of file
diff --git a/vendor/github.com/ncruces/go-sqlite3/util/sql3util/arg.go b/vendor/github.com/ncruces/go-sqlite3/util/sql3util/arg.go
deleted file mode 100644
index 3e8c728b0..000000000
--- a/vendor/github.com/ncruces/go-sqlite3/util/sql3util/arg.go
+++ /dev/null
@@ -1,65 +0,0 @@
-package sql3util
-
-import "strings"
-
-// NamedArg splits an named arg into a key and value,
-// around an equals sign.
-// Spaces are trimmed around both key and value.
-func NamedArg(arg string) (key, val string) {
-	key, val, _ = strings.Cut(arg, "=")
-	key = strings.TrimSpace(key)
-	val = strings.TrimSpace(val)
-	return
-}
-
-// Unquote unquotes a string.
-//
-// https://sqlite.org/lang_keywords.html
-func Unquote(val string) string {
-	if len(val) < 2 {
-		return val
-	}
-	fst := val[0]
-	lst := val[len(val)-1]
-	rst := val[1 : len(val)-1]
-	if fst == '[' && lst == ']' {
-		return rst
-	}
-	if fst != lst {
-		return val
-	}
-	var old, new string
-	switch fst {
-	default:
-		return val
-	case '`':
-		old, new = "``", "`"
-	case '"':
-		old, new = `""`, `"`
-	case '\'':
-		old, new = `''`, `'`
-	}
-	return strings.ReplaceAll(rst, old, new)
-}
-
-// ParseBool parses a boolean.
-//
-// https://sqlite.org/pragma.html#syntax
-func ParseBool(s string) (b, ok bool) {
-	if len(s) == 0 {
-		return false, false
-	}
-	if s[0] == '0' {
-		return false, true
-	}
-	if '1' <= s[0] && s[0] <= '9' {
-		return true, true
-	}
-	switch strings.ToLower(s) {
-	case "true", "yes", "on":
-		return true, true
-	case "false", "no", "off":
-		return false, true
-	}
-	return false, false
-}
diff --git a/vendor/github.com/ncruces/go-sqlite3/util/sql3util/const.go b/vendor/github.com/ncruces/go-sqlite3/util/sql3util/const.go
deleted file mode 100644
index 10e8af35a..000000000
--- a/vendor/github.com/ncruces/go-sqlite3/util/sql3util/const.go
+++ /dev/null
@@ -1,61 +0,0 @@
-package sql3util
-
-const (
-	_NONE = iota
-	_MEMORY
-	_SYNTAX
-	_UNSUPPORTEDSQL
-)
-
-type ConflictClause uint32
-
-const (
-	CONFLICT_NONE ConflictClause = iota
-	CONFLICT_ROLLBACK
-	CONFLICT_ABORT
-	CONFLICT_FAIL
-	CONFLICT_IGNORE
-	CONFLICT_REPLACE
-)
-
-type OrderClause uint32
-
-const (
-	ORDER_NONE OrderClause = iota
-	ORDER_ASC
-	ORDER_DESC
-)
-
-type FKAction uint32
-
-const (
-	FKACTION_NONE FKAction = iota
-	FKACTION_SETNULL
-	FKACTION_SETDEFAULT
-	FKACTION_CASCADE
-	FKACTION_RESTRICT
-	FKACTION_NOACTION
-)
-
-type FKDefType uint32
-
-const (
-	DEFTYPE_NONE FKDefType = iota
-	DEFTYPE_DEFERRABLE
-	DEFTYPE_DEFERRABLE_INITIALLY_DEFERRED
-	DEFTYPE_DEFERRABLE_INITIALLY_IMMEDIATE
-	DEFTYPE_NOTDEFERRABLE
-	DEFTYPE_NOTDEFERRABLE_INITIALLY_DEFERRED
-	DEFTYPE_NOTDEFERRABLE_INITIALLY_IMMEDIATE
-)
-
-type StatementType uint32
-
-const (
-	CREATE_UNKNOWN StatementType = iota
-	CREATE_TABLE
-	ALTER_RENAME_TABLE
-	ALTER_RENAME_COLUMN
-	ALTER_ADD_COLUMN
-	ALTER_DROP_COLUMN
-)
diff --git a/vendor/github.com/ncruces/go-sqlite3/util/sql3util/parse.go b/vendor/github.com/ncruces/go-sqlite3/util/sql3util/parse.go
deleted file mode 100644
index 7dd76ceb1..000000000
--- a/vendor/github.com/ncruces/go-sqlite3/util/sql3util/parse.go
+++ /dev/null
@@ -1,210 +0,0 @@
-package sql3util
-
-import (
-	"context"
-	_ "embed"
-	"sync"
-
-	"github.com/tetratelabs/wazero"
-	"github.com/tetratelabs/wazero/api"
-
-	"github.com/ncruces/go-sqlite3/internal/util"
-)
-
-const (
-	errp = 4
-	sqlp = 8
-)
-
-var (
-	//go:embed wasm/sql3parse_table.wasm
-	binary   []byte
-	once     sync.Once
-	runtime  wazero.Runtime
-	compiled wazero.CompiledModule
-)
-
-// ParseTable parses a [CREATE] or [ALTER TABLE] command.
-//
-// [CREATE]: https://sqlite.org/lang_createtable.html
-// [ALTER TABLE]: https://sqlite.org/lang_altertable.html
-func ParseTable(sql string) (_ *Table, err error) {
-	once.Do(func() {
-		ctx := context.Background()
-		cfg := wazero.NewRuntimeConfigInterpreter()
-		runtime = wazero.NewRuntimeWithConfig(ctx, cfg)
-		compiled, err = runtime.CompileModule(ctx, binary)
-	})
-	if err != nil {
-		return nil, err
-	}
-
-	ctx := context.Background()
-	mod, err := runtime.InstantiateModule(ctx, compiled, wazero.NewModuleConfig().WithName(""))
-	if err != nil {
-		return nil, err
-	}
-	defer mod.Close(ctx)
-
-	if buf, ok := mod.Memory().Read(sqlp, uint32(len(sql))); ok {
-		copy(buf, sql)
-	}
-
-	stack := [...]util.Stk_t{sqlp, util.Stk_t(len(sql)), errp}
-	err = mod.ExportedFunction("sql3parse_table").CallWithStack(ctx, stack[:])
-	if err != nil {
-		return nil, err
-	}
-
-	c, _ := mod.Memory().ReadUint32Le(errp)
-	switch c {
-	case _MEMORY:
-		panic(util.OOMErr)
-	case _SYNTAX:
-		return nil, util.ErrorString("sql3parse: invalid syntax")
-	case _UNSUPPORTEDSQL:
-		return nil, util.ErrorString("sql3parse: unsupported SQL")
-	}
-
-	var tab Table
-	tab.load(mod, uint32(stack[0]), sql)
-	return &tab, nil
-}
-
-// Table holds metadata about a table.
-type Table struct {
-	Name           string
-	Schema         string
-	Comment        string
-	IsTemporary    bool
-	IsIfNotExists  bool
-	IsWithoutRowID bool
-	IsStrict       bool
-	Columns        []Column
-	Type           StatementType
-	CurrentName    string
-	NewName        string
-}
-
-func (t *Table) load(mod api.Module, ptr uint32, sql string) {
-	t.Name = loadString(mod, ptr+0, sql)
-	t.Schema = loadString(mod, ptr+8, sql)
-	t.Comment = loadString(mod, ptr+16, sql)
-
-	t.IsTemporary = loadBool(mod, ptr+24)
-	t.IsIfNotExists = loadBool(mod, ptr+25)
-	t.IsWithoutRowID = loadBool(mod, ptr+26)
-	t.IsStrict = loadBool(mod, ptr+27)
-
-	t.Columns = loadSlice(mod, ptr+28, func(ptr uint32, ret *Column) {
-		p, _ := mod.Memory().ReadUint32Le(ptr)
-		ret.load(mod, p, sql)
-	})
-
-	t.Type = loadEnum[StatementType](mod, ptr+44)
-	t.CurrentName = loadString(mod, ptr+48, sql)
-	t.NewName = loadString(mod, ptr+56, sql)
-}
-
-// Column holds metadata about a column.
-type Column struct {
-	Name                  string
-	Type                  string
-	Length                string
-	ConstraintName        string
-	Comment               string
-	IsPrimaryKey          bool
-	IsAutoIncrement       bool
-	IsNotNull             bool
-	IsUnique              bool
-	PKOrder               OrderClause
-	PKConflictClause      ConflictClause
-	NotNullConflictClause ConflictClause
-	UniqueConflictClause  ConflictClause
-	CheckExpr             string
-	DefaultExpr           string
-	CollateName           string
-	ForeignKeyClause      *ForeignKey
-}
-
-func (c *Column) load(mod api.Module, ptr uint32, sql string) {
-	c.Name = loadString(mod, ptr+0, sql)
-	c.Type = loadString(mod, ptr+8, sql)
-	c.Length = loadString(mod, ptr+16, sql)
-	c.ConstraintName = loadString(mod, ptr+24, sql)
-	c.Comment = loadString(mod, ptr+32, sql)
-
-	c.IsPrimaryKey = loadBool(mod, ptr+40)
-	c.IsAutoIncrement = loadBool(mod, ptr+41)
-	c.IsNotNull = loadBool(mod, ptr+42)
-	c.IsUnique = loadBool(mod, ptr+43)
-
-	c.PKOrder = loadEnum[OrderClause](mod, ptr+44)
-	c.PKConflictClause = loadEnum[ConflictClause](mod, ptr+48)
-	c.NotNullConflictClause = loadEnum[ConflictClause](mod, ptr+52)
-	c.UniqueConflictClause = loadEnum[ConflictClause](mod, ptr+56)
-
-	c.CheckExpr = loadString(mod, ptr+60, sql)
-	c.DefaultExpr = loadString(mod, ptr+68, sql)
-	c.CollateName = loadString(mod, ptr+76, sql)
-
-	if ptr, _ := mod.Memory().ReadUint32Le(ptr + 84); ptr != 0 {
-		c.ForeignKeyClause = &ForeignKey{}
-		c.ForeignKeyClause.load(mod, ptr, sql)
-	}
-}
-
-type ForeignKey struct {
-	Table      string
-	Columns    []string
-	OnDelete   FKAction
-	OnUpdate   FKAction
-	Match      string
-	Deferrable FKDefType
-}
-
-func (f *ForeignKey) load(mod api.Module, ptr uint32, sql string) {
-	f.Table = loadString(mod, ptr+0, sql)
-
-	f.Columns = loadSlice(mod, ptr+8, func(ptr uint32, ret *string) {
-		*ret = loadString(mod, ptr, sql)
-	})
-
-	f.OnDelete = loadEnum[FKAction](mod, ptr+16)
-	f.OnUpdate = loadEnum[FKAction](mod, ptr+20)
-	f.Match = loadString(mod, ptr+24, sql)
-	f.Deferrable = loadEnum[FKDefType](mod, ptr+32)
-}
-
-func loadString(mod api.Module, ptr uint32, sql string) string {
-	off, _ := mod.Memory().ReadUint32Le(ptr + 0)
-	if off == 0 {
-		return ""
-	}
-	len, _ := mod.Memory().ReadUint32Le(ptr + 4)
-	return sql[off-sqlp : off+len-sqlp]
-}
-
-func loadSlice[T any](mod api.Module, ptr uint32, fn func(uint32, *T)) []T {
-	ref, _ := mod.Memory().ReadUint32Le(ptr + 4)
-	if ref == 0 {
-		return nil
-	}
-	len, _ := mod.Memory().ReadUint32Le(ptr + 0)
-	ret := make([]T, len)
-	for i := range ret {
-		fn(ref, &ret[i])
-		ref += 4
-	}
-	return ret
-}
-
-func loadEnum[T ~uint32](mod api.Module, ptr uint32) T {
-	val, _ := mod.Memory().ReadUint32Le(ptr)
-	return T(val)
-}
-
-func loadBool(mod api.Module, ptr uint32) bool {
-	val, _ := mod.Memory().ReadByte(ptr)
-	return val != 0
-}
diff --git a/vendor/github.com/ncruces/go-sqlite3/util/sql3util/sql3util.go b/vendor/github.com/ncruces/go-sqlite3/util/sql3util/sql3util.go
deleted file mode 100644
index f2e33c0b2..000000000
--- a/vendor/github.com/ncruces/go-sqlite3/util/sql3util/sql3util.go
+++ /dev/null
@@ -1,9 +0,0 @@
-// Package sql3util implements SQLite utilities.
-package sql3util
-
-// ValidPageSize returns true if s is a valid page size.
-//
-// https://sqlite.org/fileformat.html#pages
-func ValidPageSize(s int) bool {
-	return s&(s-1) == 0 && 512 <= s && s <= 65536
-}
diff --git a/vendor/github.com/ncruces/go-sqlite3/util/sql3util/wasm/sql3parse_table.wasm b/vendor/github.com/ncruces/go-sqlite3/util/sql3util/wasm/sql3parse_table.wasm
deleted file mode 100644
index 0d7c8810c..000000000
--- a/vendor/github.com/ncruces/go-sqlite3/util/sql3util/wasm/sql3parse_table.wasm
+++ /dev/null
diff --git a/vendor/github.com/ncruces/go-sqlite3/util/vfsutil/slice.go b/vendor/github.com/ncruces/go-sqlite3/util/vfsutil/slice.go
deleted file mode 100644
index b0fbe993c..000000000
--- a/vendor/github.com/ncruces/go-sqlite3/util/vfsutil/slice.go
+++ /dev/null
@@ -1,102 +0,0 @@
-package vfsutil
-
-import (
-	"io"
-
-	"github.com/ncruces/go-sqlite3"
-	"github.com/ncruces/go-sqlite3/vfs"
-)
-
-// SliceFile implements [vfs.File] with a byte slice.
-// It is suitable for temporary files (such as [vfs.OPEN_TEMP_JOURNAL]),
-// but not concurrency safe.
-type SliceFile []byte
-
-var (
-	// Ensure these interfaces are implemented:
-	_ vfs.FileSizeHint = &SliceFile{}
-)
-
-// ReadAt implements [io.ReaderAt].
-func (f *SliceFile) ReadAt(b []byte, off int64) (n int, err error) {
-	if d := *f; off < int64(len(d)) {
-		n = copy(b, d[off:])
-	}
-	if n < len(b) {
-		err = io.EOF
-	}
-	return
-}
-
-// WriteAt implements [io.WriterAt].
-func (f *SliceFile) WriteAt(b []byte, off int64) (n int, err error) {
-	d := *f
-	if off > int64(len(d)) {
-		d = append(d, make([]byte, off-int64(len(d)))...)
-	}
-	d = append(d[:off], b...)
-	if len(d) > len(*f) {
-		*f = d
-	}
-	return len(b), nil
-}
-
-// Size implements [vfs.File].
-func (f *SliceFile) Size() (int64, error) {
-	return int64(len(*f)), nil
-}
-
-// Truncate implements [vfs.File].
-func (f *SliceFile) Truncate(size int64) error {
-	if d := *f; size < int64(len(d)) {
-		*f = d[:size]
-	}
-	return nil
-}
-
-// SizeHint implements [vfs.FileSizeHint].
-func (f *SliceFile) SizeHint(size int64) error {
-	if d := *f; size > int64(len(d)) {
-		*f = append(d, make([]byte, size-int64(len(d)))...)
-	}
-	return nil
-}
-
-// Close implements [io.Closer].
-func (*SliceFile) Close() error { return nil }
-
-// Sync implements [vfs.File].
-func (*SliceFile) Sync(flags vfs.SyncFlag) error { return nil }
-
-// Lock implements [vfs.File].
-func (*SliceFile) Lock(lock vfs.LockLevel) error {
-	// notest // not concurrency safe
-	return sqlite3.IOERR_LOCK
-}
-
-// Unlock implements [vfs.File].
-func (*SliceFile) Unlock(lock vfs.LockLevel) error {
-	// notest // not concurrency safe
-	return sqlite3.IOERR_UNLOCK
-}
-
-// CheckReservedLock implements [vfs.File].
-func (*SliceFile) CheckReservedLock() (bool, error) {
-	// notest // not concurrency safe
-	return false, sqlite3.IOERR_CHECKRESERVEDLOCK
-}
-
-// SectorSize implements [vfs.File].
-func (*SliceFile) SectorSize() int {
-	// notest // safe default
-	return 0
-}
-
-// DeviceCharacteristics implements [vfs.File].
-func (*SliceFile) DeviceCharacteristics() vfs.DeviceCharacteristic {
-	return vfs.IOCAP_ATOMIC |
-		vfs.IOCAP_SEQUENTIAL |
-		vfs.IOCAP_SAFE_APPEND |
-		vfs.IOCAP_POWERSAFE_OVERWRITE |
-		vfs.IOCAP_SUBPAGE_READ
-}
diff --git a/vendor/github.com/ncruces/go-sqlite3/util/vfsutil/wrap.go b/vendor/github.com/ncruces/go-sqlite3/util/vfsutil/wrap.go
deleted file mode 100644
index ad96547fa..000000000
--- a/vendor/github.com/ncruces/go-sqlite3/util/vfsutil/wrap.go
+++ /dev/null
@@ -1,185 +0,0 @@
-// Package vfsutil implements virtual filesystem utilities.
-package vfsutil
-
-import (
-	"github.com/ncruces/go-sqlite3"
-	"github.com/ncruces/go-sqlite3/vfs"
-)
-
-// UnwrapFile unwraps a [vfs.File],
-// possibly implementing [vfs.FileUnwrap],
-// to a concrete type.
-func UnwrapFile[T vfs.File](f vfs.File) (_ T, _ bool) {
-	for {
-		switch t := f.(type) {
-		default:
-			return
-		case T:
-			return t, true
-		case vfs.FileUnwrap:
-			f = t.Unwrap()
-		}
-	}
-}
-
-// WrapOpen helps wrap [vfs.VFS].
-func WrapOpen(f vfs.VFS, name string, flags vfs.OpenFlag) (file vfs.File, _ vfs.OpenFlag, err error) {
-	if f, ok := f.(vfs.VFSFilename); name == "" && ok {
-		return f.OpenFilename(nil, flags)
-	}
-	return f.Open(name, flags)
-}
-
-// WrapOpenFilename helps wrap [vfs.VFSFilename].
-func WrapOpenFilename(f vfs.VFS, name *vfs.Filename, flags vfs.OpenFlag) (file vfs.File, _ vfs.OpenFlag, err error) {
-	if f, ok := f.(vfs.VFSFilename); ok {
-		return f.OpenFilename(name, flags)
-	}
-	return f.Open(name.String(), flags)
-}
-
-// WrapLockState helps wrap [vfs.FileLockState].
-func WrapLockState(f vfs.File) vfs.LockLevel {
-	if f, ok := f.(vfs.FileLockState); ok {
-		return f.LockState()
-	}
-	return vfs.LOCK_EXCLUSIVE + 1 // UNKNOWN_LOCK
-}
-
-// WrapPersistWAL helps wrap [vfs.FilePersistWAL].
-func WrapPersistWAL(f vfs.File) bool {
-	if f, ok := f.(vfs.FilePersistWAL); ok {
-		return f.PersistWAL()
-	}
-	return false
-}
-
-// WrapSetPersistWAL helps wrap [vfs.FilePersistWAL].
-func WrapSetPersistWAL(f vfs.File, keepWAL bool) {
-	if f, ok := f.(vfs.FilePersistWAL); ok {
-		f.SetPersistWAL(keepWAL)
-	}
-}
-
-// WrapPowersafeOverwrite helps wrap [vfs.FilePowersafeOverwrite].
-func WrapPowersafeOverwrite(f vfs.File) bool {
-	if f, ok := f.(vfs.FilePowersafeOverwrite); ok {
-		return f.PowersafeOverwrite()
-	}
-	return false
-}
-
-// WrapSetPowersafeOverwrite helps wrap [vfs.FilePowersafeOverwrite].
-func WrapSetPowersafeOverwrite(f vfs.File, psow bool) {
-	if f, ok := f.(vfs.FilePowersafeOverwrite); ok {
-		f.SetPowersafeOverwrite(psow)
-	}
-}
-
-// WrapChunkSize helps wrap [vfs.FileChunkSize].
-func WrapChunkSize(f vfs.File, size int) {
-	if f, ok := f.(vfs.FileChunkSize); ok {
-		f.ChunkSize(size)
-	}
-}
-
-// WrapSizeHint helps wrap [vfs.FileSizeHint].
-func WrapSizeHint(f vfs.File, size int64) error {
-	if f, ok := f.(vfs.FileSizeHint); ok {
-		return f.SizeHint(size)
-	}
-	return sqlite3.NOTFOUND
-}
-
-// WrapHasMoved helps wrap [vfs.FileHasMoved].
-func WrapHasMoved(f vfs.File) (bool, error) {
-	if f, ok := f.(vfs.FileHasMoved); ok {
-		return f.HasMoved()
-	}
-	return false, sqlite3.NOTFOUND
-}
-
-// WrapOverwrite helps wrap [vfs.FileOverwrite].
-func WrapOverwrite(f vfs.File) error {
-	if f, ok := f.(vfs.FileOverwrite); ok {
-		return f.Overwrite()
-	}
-	return sqlite3.NOTFOUND
-}
-
-// WrapSyncSuper helps wrap [vfs.FileSync].
-func WrapSyncSuper(f vfs.File, super string) error {
-	if f, ok := f.(vfs.FileSync); ok {
-		return f.SyncSuper(super)
-	}
-	return sqlite3.NOTFOUND
-}
-
-// WrapCommitPhaseTwo helps wrap [vfs.FileCommitPhaseTwo].
-func WrapCommitPhaseTwo(f vfs.File) error {
-	if f, ok := f.(vfs.FileCommitPhaseTwo); ok {
-		return f.CommitPhaseTwo()
-	}
-	return sqlite3.NOTFOUND
-}
-
-// WrapBeginAtomicWrite helps wrap [vfs.FileBatchAtomicWrite].
-func WrapBeginAtomicWrite(f vfs.File) error {
-	if f, ok := f.(vfs.FileBatchAtomicWrite); ok {
-		return f.BeginAtomicWrite()
-	}
-	return sqlite3.NOTFOUND
-}
-
-// WrapCommitAtomicWrite helps wrap [vfs.FileBatchAtomicWrite].
-func WrapCommitAtomicWrite(f vfs.File) error {
-	if f, ok := f.(vfs.FileBatchAtomicWrite); ok {
-		return f.CommitAtomicWrite()
-	}
-	return sqlite3.NOTFOUND
-}
-
-// WrapRollbackAtomicWrite helps wrap [vfs.FileBatchAtomicWrite].
-func WrapRollbackAtomicWrite(f vfs.File) error {
-	if f, ok := f.(vfs.FileBatchAtomicWrite); ok {
-		return f.RollbackAtomicWrite()
-	}
-	return sqlite3.NOTFOUND
-}
-
-// WrapCheckpointStart helps wrap [vfs.FileCheckpoint].
-func WrapCheckpointStart(f vfs.File) {
-	if f, ok := f.(vfs.FileCheckpoint); ok {
-		f.CheckpointStart()
-	}
-}
-
-// WrapCheckpointDone helps wrap [vfs.FileCheckpoint].
-func WrapCheckpointDone(f vfs.File) {
-	if f, ok := f.(vfs.FileCheckpoint); ok {
-		f.CheckpointDone()
-	}
-}
-
-// WrapPragma helps wrap [vfs.FilePragma].
-func WrapPragma(f vfs.File, name, value string) (string, error) {
-	if f, ok := f.(vfs.FilePragma); ok {
-		return f.Pragma(name, value)
-	}
-	return "", sqlite3.NOTFOUND
-}
-
-// WrapBusyHandler helps wrap [vfs.FilePragma].
-func WrapBusyHandler(f vfs.File, handler func() bool) {
-	if f, ok := f.(vfs.FileBusyHandler); ok {
-		f.BusyHandler(handler)
-	}
-}
-
-// WrapSharedMemory helps wrap [vfs.FileSharedMemory].
-func WrapSharedMemory(f vfs.File) vfs.SharedMemory {
-	if f, ok := f.(vfs.FileSharedMemory); ok {
-		return f.SharedMemory()
-	}
-	return nil
-}