This commit adds support for [TC39 Decorator
Proposal](https://github.com/tc39/proposal-decorators).
These decorators are only available in transpiled sources - ie.
non-JavaScript files (because of lack of support in V8).
This entails that "experimental TypeScript decorators" are not available
by default
and require to be configured, with a configuration like this:
```
{
"compilerOptions": {
"experimentalDecorators": true
}
}
```
Closes https://github.com/denoland/deno/issues/19160
---------
Signed-off-by: Bartek Iwańczuk <biwanczuk@gmail.com>
Co-authored-by: crowlkats <crowlkats@toaxl.com>
Co-authored-by: Divy Srivastava <dj.srivastava23@gmail.com>
This commit adds `import.meta.filename` and `import.meta.dirname` APIs.
These APIs return string representation of filename and containing
dirname.
They are only defined for local modules (modules that have `file:///`
scheme).
Example:
```ts
console.log(import.meta.filename, import.meta.dirname)
```
Unix:
```
$ deno run /dev/my_module.ts
/dev/my_module.ts /dev/
```
Windows:
```
$ deno run C:\dev\my_module.ts
C:\dev\my_module.ts C:\
```
It appears the `--prompt` flag has done nothing for some time. Perhaps,
since #13650. Classifying this as a dead functionality removal for this
reason.
Did this while working on #22021.
This initially uses the new diagnostic printer in `deno lint`,
`deno doc` and `deno publish`. In the limit we should also update
`deno check` to use this printer.
This commit deprecates "--unstable" flag.
When "--unstable" flag is encountered a warning like this is printed:
```
The `--unstable` flag is deprecated, use granular `--unstable-*` flags instead.
Learn more at: https://docs.deno.com/runtime/manual/tools/unstable_flags
```
When "--unstable" flag is used and an unstable API is called an
additional warning like this is printed for each API call:
```
The `Deno.dlopen` API was used with `--unstable` flag. The `--unstable` flag is deprecated, use granular `--unstable-ffi` instead.
Learn more at: https://docs.deno.com/runtime/manual/tools/unstable_flags
```
When no "--unstable-*" flag is provided and an unstable API is called
following
warning is issued before exiting:
```
Unstable API 'Deno.dlopen'. The `--unstable-ffi` flag must be provided.
```
---------
Signed-off-by: Divy Srivastava <dj.srivastava23@gmail.com>
Signed-off-by: Bartek Iwańczuk <biwanczuk@gmail.com>
Co-authored-by: Divy Srivastava <dj.srivastava23@gmail.com>
Co-authored-by: Asher Gomez <ashersaupingomez@gmail.com>
Closes https://github.com/denoland/deno/issues/21828.
This API is a huge footgun. And given that "Deno.serveHttp" is a
deprecated API that is discouraged to use (use "Deno.serve()"
instead); it makes no sense to keep this API around.
This is a step towards fully migrating to Hyper 1.
This commit introduces deprecation warnings for "Deno.*" APIs.
This is gonna be quite noisy, but should tremendously help with user
code updates to ensure
smooth migration to Deno 2.0. The warning is printed at each unique call
site to help quickly
identify where code needs to be adjusted. There's some stack frame
filtering going on to
remove frames that are not useful to the user and would only cause
confusion.
The warning can be silenced using "--quiet" flag or
"DENO_NO_DEPRECATION_WARNINGS" env var.
"Deno.run()" API is now using this warning. Other deprecated APIs will
start warning
in follow up PRs.
Example:
```js
import { runEcho as runEcho2 } from "http://localhost:4545/run/warn_on_deprecated_api/mod.ts";
const p = Deno.run({
cmd: [
Deno.execPath(),
"eval",
"console.log('hello world')",
],
});
await p.status();
p.close();
async function runEcho() {
const p = Deno.run({
cmd: [
Deno.execPath(),
"eval",
"console.log('hello world')",
],
});
await p.status();
p.close();
}
await runEcho();
await runEcho();
for (let i = 0; i < 10; i++) {
await runEcho();
}
await runEcho2();
```
```
$ deno run --allow-read foo.js
Warning
├ Use of deprecated "Deno.run()" API.
│
├ This API will be removed in Deno 2.0. Make sure to upgrade to a stable API before then.
│
├ Suggestion: Use "Deno.Command()" API instead.
│
└ Stack trace:
└─ at file:///Users/ib/dev/deno/foo.js:3:16
hello world
Warning
├ Use of deprecated "Deno.run()" API.
│
├ This API will be removed in Deno 2.0. Make sure to upgrade to a stable API before then.
│
├ Suggestion: Use "Deno.Command()" API instead.
│
└ Stack trace:
├─ at runEcho (file:///Users/ib/dev/deno/foo.js:8:18)
└─ at file:///Users/ib/dev/deno/foo.js:13:7
hello world
Warning
├ Use of deprecated "Deno.run()" API.
│
├ This API will be removed in Deno 2.0. Make sure to upgrade to a stable API before then.
│
├ Suggestion: Use "Deno.Command()" API instead.
│
└ Stack trace:
├─ at runEcho (file:///Users/ib/dev/deno/foo.js:8:18)
└─ at file:///Users/ib/dev/deno/foo.js:14:7
hello world
Warning
├ Use of deprecated "Deno.run()" API.
│
├ This API will be removed in Deno 2.0. Make sure to upgrade to a stable API before then.
│
├ Suggestion: Use "Deno.Command()" API instead.
│
└ Stack trace:
├─ at runEcho (file:///Users/ib/dev/deno/foo.js:8:18)
└─ at file:///Users/ib/dev/deno/foo.js:17:9
hello world
hello world
hello world
hello world
hello world
hello world
hello world
hello world
hello world
hello world
Warning
├ Use of deprecated "Deno.run()" API.
│
├ This API will be removed in Deno 2.0. Make sure to upgrade to a stable API before then.
│
├ Suggestion: Use "Deno.Command()" API instead.
│
├ Suggestion: It appears this API is used by a remote dependency.
│ Try upgrading to the latest version of that dependency.
│
└ Stack trace:
├─ at runEcho (http://localhost:4545/run/warn_on_deprecated_api/mod.ts:2:18)
└─ at file:///Users/ib/dev/deno/foo.js:20:7
hello world
```
Closes #21839
This commit removes the requirement for `--unstable` flag in `deno
jupyter` subcommand. The process will no longer exit if this flag is not
provided, however the subcommand itself is still considered unstable
and might change in the future.
Required for https://github.com/denoland/deno/pull/21452
This commit adds support for [Stage 3 Temporal API
proposal](https://tc39.es/proposal-temporal/docs/).
The API is available when `--unstable-temporal` flag is passed.
---------
Signed-off-by: Bartek Iwańczuk <biwanczuk@gmail.com>
Co-authored-by: David Sherret <dsherret@gmail.com>
Co-authored-by: Kenta Moriuchi <moriken@kimamass.com>
This commit removes conditional type-checking of unstable APIs.
Before this commit `deno check` (or any other type-checking command and
the LSP) would error out if there was an unstable API in the code, but not
`--unstable` flag provided.
This situation hinders DX and makes it harder to configure Deno. Failing
during runtime unless `--unstable` flag is provided is enough in this case.
This commit adds support for "rejectionhandled" Web Event and
"rejectionHandled" Node event.
```js
import process from "node:process";
process.on("rejectionHandled", (promise) => {
console.log("rejectionHandled", reason, promise);
});
window.addEventListener("rejectionhandled", (event) => {
console.log("rejectionhandled", event.reason, event.promise);
});
```
---------
Co-authored-by: Matt Mastracci <matthew@mastracci.com>
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---------
Signed-off-by: Matt Mastracci <matthew@mastracci.com>
Co-authored-by: Matt Mastracci <matthew@mastracci.com>
This PR fixes #21658.
- `check` subcommand sees `exclude` option in `deno.json`. When some
paths passed with `check` command listed in `exclude`, they are ignored.
- When some files are listed in `exclude` and imported indirectly among
module graph, they are checked.
Harden the code that does permission checks to protect against
re-opening of stdin.
Code that runs FFI is vulnerable to an attack where fd 0 is closed
during a permission check and re-opened with a file that contains a
positive response (ie: `y` or `A`). While FFI code is dangerous in
general, we can make it more difficult for FFI-enabled code to bypass
additional permission checks.
- Checks to see if the underlying file for stdin has changed from the
start to the end of the permission check (detects races)
- Checks to see if the message is excessively long (lowering the window
for races)
- Checks to see if stdin and stderr are still terminals at the end of
the function (making races more difficult)
