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4c6db7aa14
This commit further improves startup time by: - no relying on "JsRuntime::execute_script" for runtime bootstrapping, this is instead done using V8 APIs directly - registering error classes during the snapshot time, instead of on startup Further improvements can be made, mainly around removing "core.initializeAsyncOps()" which takes around 2ms. This commit should result in ~1ms startup time improvement. |
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| .. | ||
| 01_build.js | ||
| 01_errors.js | ||
| 01_version.ts | ||
| 06_util.js | ||
| 10_permissions.js | ||
| 11_workers.js | ||
| 12_io.js | ||
| 13_buffer.js | ||
| 30_fs.js | ||
| 30_os.js | ||
| 40_diagnostics.js | ||
| 40_files.js | ||
| 40_fs_events.js | ||
| 40_http.js | ||
| 40_process.js | ||
| 40_read_file.js | ||
| 40_signals.js | ||
| 40_spawn.js | ||
| 40_tty.js | ||
| 40_write_file.js | ||
| 41_prompt.js | ||
| 90_deno_ns.js | ||
| 98_global_scope.js | ||
| 99_main.js | ||
| README.md | ||
Runtime JavaScript Code
This directory contains Deno runtime code written in plain JavaScript.
Each file is a plain, old script, not ES modules. The reason is that snapshotting ES modules is much harder, especially if one needs to manipulate global scope (like in case of Deno).
Each file is prefixed with a number, telling in which order scripts should be loaded into V8 isolate. This is temporary solution and we're striving not to require specific order (though it's not 100% obvious if that's feasible).
Deno Web APIs
This directory facilities Web APIs that are available in Deno.
Please note, that some implementations might not be completely aligned with specification.
Some Web APIs are using ops under the hood, eg. console, performance.
Implemented Web APIs
- Blob: for representing opaque binary data.
- Console: for logging purposes.
- CustomEvent,
EventTarget
and
EventListener:
to work with DOM events.
- Implementation notes: There is no DOM hierarchy in Deno, so there is no tree for Events to bubble/capture through.
- fetch, Request, Response, Body and Headers: modern Promise-based HTTP Request API.
- location and Location.
- FormData: access
to a
multipart/form-dataserialization. - Performance: retrieving current time with a high precision.
- setTimeout, setInterval, clearTimeout: scheduling callbacks in future and clearInterval.
- Stream for creating, composing, and consuming streams of data.
- URL and URLSearchParams: to construct and parse URLSs.
- Worker: executing
additional code in a separate thread.
- Implementation notes: Blob URLs are not supported, object ownership cannot be transferred, posted data is serialized to JSON instead of structured cloning.