3d5b6d609a
gojs: implements lstat This implements platform.Lstat and uses it in GOOS=js. Notably, directory listings need to run lstat on their entries to get the correct inodes back. In GOOS=js, directories are a fan-out of names, then lstat. This also fixes stat for inodes on directories. We were missing a test so we didn't know it was broken on windows. The approach used now is reliable on go 1.20, and we should suggest anyone using windows to compile with go 1.20. Signed-off-by: Takeshi Yoneda <takeshi@tetrate.io>
88 lines
2.1 KiB
Go
88 lines
2.1 KiB
Go
package sysfs
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import (
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"io/fs"
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"syscall"
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"github.com/tetratelabs/wazero/internal/platform"
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)
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// UnimplementedFS is an FS that returns syscall.ENOSYS for all functions,
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// This should be embedded to have forward compatible implementations.
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type UnimplementedFS struct{}
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// String implements fmt.Stringer
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func (UnimplementedFS) String() string {
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return "Unimplemented:/"
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}
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// Open implements the same method as documented on fs.FS
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func (UnimplementedFS) Open(name string) (fs.File, error) {
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return nil, &fs.PathError{Op: "open", Path: name, Err: syscall.ENOSYS}
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}
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// OpenFile implements FS.OpenFile
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func (UnimplementedFS) OpenFile(path string, flag int, perm fs.FileMode) (fs.File, error) {
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return nil, syscall.ENOSYS
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}
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// Lstat implements FS.Lstat
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func (UnimplementedFS) Lstat(path string, stat *platform.Stat_t) error {
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return syscall.ENOSYS
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}
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// Stat implements FS.Stat
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func (UnimplementedFS) Stat(path string, stat *platform.Stat_t) error {
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return syscall.ENOSYS
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}
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// Mkdir implements FS.Mkdir
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func (UnimplementedFS) Mkdir(path string, perm fs.FileMode) error {
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return syscall.ENOSYS
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}
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// Chmod implements FS.Chmod
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func (UnimplementedFS) Chmod(path string, perm fs.FileMode) error {
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return syscall.ENOSYS
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}
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// Rename implements FS.Rename
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func (UnimplementedFS) Rename(from, to string) error {
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return syscall.ENOSYS
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}
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// Rmdir implements FS.Rmdir
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func (UnimplementedFS) Rmdir(path string) error {
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return syscall.ENOSYS
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}
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// Readlink implements FS.Readlink
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func (UnimplementedFS) Readlink(string, []byte) (int, error) {
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return 0, syscall.ENOSYS
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}
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// Link implements FS.Link
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func (UnimplementedFS) Link(_, _ string) error {
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return syscall.ENOSYS
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}
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// Symlink implements FS.Symlink
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func (UnimplementedFS) Symlink(_, _ string) error {
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return syscall.ENOSYS
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}
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// Unlink implements FS.Unlink
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func (UnimplementedFS) Unlink(path string) error {
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return syscall.ENOSYS
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}
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// Utimes implements FS.Utimes
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func (UnimplementedFS) Utimes(path string, atimeNsec, mtimeNsec int64) error {
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return syscall.ENOSYS
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}
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// Truncate implements FS.Truncate
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func (UnimplementedFS) Truncate(string, int64) error {
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return syscall.ENOSYS
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}
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