turbo_tasks_fs/
virtual_fs.rs

1use anyhow::{Result, bail};
2use turbo_rcstr::RcStr;
3use turbo_tasks::{ValueDefault, ValueToString, Vc};
4
5use super::{FileContent, FileMeta, FileSystem, FileSystemPath, LinkContent};
6use crate::RawDirectoryContent;
7
8#[turbo_tasks::value]
9pub struct VirtualFileSystem {
10    pub name: RcStr,
11}
12
13impl VirtualFileSystem {
14    /// Creates a new [`Vc<VirtualFileSystem>`].
15    ///
16    /// NOTE: This function is not a `turbo_tasks::function` to avoid instances
17    /// being equivalent identity-wise. This ensures that a
18    /// [`Vc<FileSystemPath>`] created from this [`Vc<VirtualFileSystem>`]
19    /// will never be equivalent, nor be interoperable, with a
20    /// [`Vc<FileSystemPath>`] created from another
21    /// [`Vc<VirtualFileSystem>`].
22    pub fn new() -> Vc<Self> {
23        Self::cell(VirtualFileSystem {
24            name: "virtual file system".into(),
25        })
26    }
27
28    /// Creates a new [`Vc<VirtualFileSystem>`] with a name.
29    ///
30    /// NOTE: This function is not a `turbo_tasks::function` to avoid instances
31    /// being equivalent identity-wise. This ensures that a
32    /// [`Vc<FileSystemPath>`] created from this [`Vc<VirtualFileSystem>`]
33    /// will never be equivalent, nor be interoperable, with a
34    /// [`Vc<FileSystemPath>`] created from another
35    /// [`Vc<VirtualFileSystem>`].
36    pub fn new_with_name(name: RcStr) -> Vc<Self> {
37        Self::cell(VirtualFileSystem { name })
38    }
39}
40
41impl ValueDefault for VirtualFileSystem {
42    fn value_default() -> Vc<Self> {
43        Self::new()
44    }
45}
46
47#[turbo_tasks::value_impl]
48impl FileSystem for VirtualFileSystem {
49    #[turbo_tasks::function]
50    fn read(&self, _fs_path: Vc<FileSystemPath>) -> Result<Vc<FileContent>> {
51        bail!("Reading is not possible on the virtual file system")
52    }
53
54    #[turbo_tasks::function]
55    fn read_link(&self, _fs_path: Vc<FileSystemPath>) -> Result<Vc<LinkContent>> {
56        bail!("Reading is not possible on the virtual file system")
57    }
58
59    #[turbo_tasks::function]
60    fn raw_read_dir(&self, _fs_path: Vc<FileSystemPath>) -> Result<Vc<RawDirectoryContent>> {
61        bail!("Reading is not possible on the virtual file system")
62    }
63
64    #[turbo_tasks::function]
65    fn write(&self, _fs_path: Vc<FileSystemPath>, _content: Vc<FileContent>) -> Result<Vc<()>> {
66        bail!("Writing is not possible on the virtual file system")
67    }
68
69    #[turbo_tasks::function]
70    fn write_link(&self, _fs_path: Vc<FileSystemPath>, _target: Vc<LinkContent>) -> Result<Vc<()>> {
71        bail!("Writing is not possible on the virtual file system")
72    }
73
74    #[turbo_tasks::function]
75    fn metadata(&self, _fs_path: Vc<FileSystemPath>) -> Result<Vc<FileMeta>> {
76        bail!("Reading is not possible on the virtual file system")
77    }
78}
79
80#[turbo_tasks::value_impl]
81impl ValueToString for VirtualFileSystem {
82    #[turbo_tasks::function]
83    fn to_string(&self) -> Vc<RcStr> {
84        Vc::cell(self.name.clone())
85    }
86}
turbo_tasks_fs/virtual_fs.rs

turbo_tasks_fs/
virtual_fs.rs
