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Co-authored-by: Levente Kurusa <lkurusa@kernelstuff.org>
Co-authored-by: Bartek Iwańczuk <biwanczuk@gmail.com>
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Relanding 4b6305f4f25fc76f974bbdcc9cdb139d5ab8f5f4
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This reverts commit 4b6305f4f25fc76f974bbdcc9cdb139d5ab8f5f4.
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This commit changes the build process in a way that preserves already
registered ops in the snapshot. This allows us to skip creating hundreds of
"v8::String" on each startup, but sadly there is still some op registration
going on startup (however we're registering 49 ops instead of >200 ops).
This situation could be further improved, by moving some of the ops
from "runtime/" to a separate extension crates.
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Co-authored-by: Divy Srivastava <dj.srivastava23@gmail.com>
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Co-authored-by: Bartek Iwańczuk <biwanczuk@gmail.com>
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This PR cleans up APIs related to snapshot creation and how ops are
initialized.
Prerequisite for #18080
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Co-authored-by: Divy Srivastava <dj.srivastava23@gmail.com>
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for snapshotted modules (#18041)
This commit renames "deno_core::InternalModuleLoader" to
"ExtModuleLoader" and changes the specifiers used by the
modules loaded from this loader to "ext:".
"internal:" scheme was really ambiguous and it's more characters than
"ext:", which should result in slightly smaller snapshot size.
Closes https://github.com/denoland/deno/issues/18020
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Runtime generation of async op wrappers contributed to increased startup
time and core became unusable with
`--disallow-code-generation-from-strings` flag. The optimization only
affects very small microbenchmarks so this revert will not cause any
regressions.
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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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Addressing Luca concerns from
https://github.com/denoland/deno/pull/17648#discussion_r1099352286
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This PR refactors all internal js files (except core) to be written as
ES modules.
`__bootstrap`has been mostly replaced with static imports in form in
`internal:[path to file from repo root]`.
To specify if files are ESM, an `esm` method has been added to
`Extension`, similar to the `js` method.
A new ModuleLoader called `InternalModuleLoader` has been added to
enable the loading of internal specifiers, which is used in all
situations except when a snapshot is only loaded, and not a new one is
created from it.
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Co-authored-by: Bartek Iwańczuk <biwanczuk@gmail.com>
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Co-authored-by: Bartek Iwańczuk <biwanczuk@gmail.com>
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This is a requirement before supporting modules in realms.
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pending_promise_rejection (#17441)
These are technically rejections - a rejection can then raise an
exception.
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`ContextState` (#17422)
The `JsRuntimeState` struct stores a number of JS callbacks that are
used either in the event loop or when interacting with V8. Some of these
callback fields are vectors of callbacks, and therefore could plausibly
store at least one callback per realm. However, some of those fields are
`Option<v8::Global<v8::Function>>`, which would make the callbacks set
by a realm override the one that might have been set by a different
realm.
As it turns out, all of the current such optional callbacks
(`js_promise_reject_cb`, `js_format_exception_cb` and
`js_wasm_streaming_cb`) are only used from inside a realm, and therefore
this change makes it so such callbacks can only be set from inside a
realm, and will only affect that realm.
This is a reland of #15599.
Towards #13239.
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This commit changes signature of "deno_core::ModuleLoader::resolve" to pass
an enum indicating whether or not we're resolving a specifier for dynamic import.
Additionally "CliModuleLoader" was changes to store both "parent permissions" (or
"root permissions") as well as "dynamic permissions" that allow to check for permissions
in top-level module load an dynamic imports.
Then all code paths that have anything to do with Node/npm compat are now checking
for permissions which are passed from module loader instance associated with given
worker.
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Explicitly get `console` object from V8 instead of relying on `console`
defined on the global object.
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Yearly tradition of creating extra noise in git.
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- refactor: remove JsRuntime::ensure_objs
- refactor: Replace JsRuntime::grab_global with JsRuntime::eval
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Reland https://github.com/denoland/deno/pull/16428
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V8's JIT can do a better job knowing the argument count and also enable
fast call path (in future).
This also lets us call async ops without `opAsync`:
```js
const { ops } = Deno.core;
await ops.op_void_async();
```
this patch: 4405286 ops/sec
main: 3508771 ops/sec
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This revert has been discussed at length out-of-band (including with
@andreubotella). The realms work in impeding ongoing event loop and
performance work. We very much want to land realms but it needs to wait
until these lower-level refactors are complete. We hope to bring realms
back in a couple weeks.
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(#15621)
Several functions used for handling of dynamic imports and "import.meta"
object were not registered as external references and caused V8 to crash
during snapshotting. These functions are now registered as external refs
and aborts are no longer happening.
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`ContextState` (#15599)
The `JsRuntimeState` struct stores a number of JS callbacks that are
used either in the event loop or when interacting with V8. Some of
these callback fields are vectors of callbacks, and therefore could
plausibly store at least one callback per realm. However, some of
those fields are `Option<v8::Global<v8::Function>>`, which would make
the callbacks set by a realm override the one that might have been set
by a different realm.
As it turns out, all of the current such optional callbacks
(`js_promise_reject_cb`, `js_format_exception_cb` and
`js_wasm_streaming_cb`) are only used from inside a realm, and
therefore this change makes it so such callbacks can only be set from
inside a realm, and will only affect that realm.
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Fixes an edge in "unhandledrejection" event that prevent synchronous
errors being surfaced when throw from a top-level scope.
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This reverts commit 03dc3b8972f460e40d0b75fc3207cae9fe4f60da.
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Co-authored-by: Bartek Iwańczuk <biwanczuk@gmail.com>
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Reland #15204
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This commit adds new "import.meta.resolve()" API which
allows to resolve specifiers relative to the module the API
is called in. This API supports resolving using import maps.
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This reverts commit 48a7312f3871e3b76c51eb0143ca1c48da43b20c.
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This reverts commit 1a7259b04b7229f6350a7a7c21b50497b5c80c17.
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Relanding #12994
This commit adds support for "unhandledrejection" event.
This event will trigger event listeners registered using:
"globalThis.addEventListener("unhandledrejection")
"globalThis.onunhandledrejection"
This is done by registering a default handler using
"Deno.core.setPromiseRejectCallback" that allows to
handle rejected promises in JavaScript instead of Rust.
This commit will make it possible to polyfill
"process.on("unhandledRejection")" in the Node compat
layer.
Co-authored-by: Colin Ihrig <cjihrig@gmail.com>
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Update "deno_core" to not forward rejection of top level module
if it was already handled by appropriate handlers.
Co-authored-by: Colin Ihrig cjihrig@gmail.com
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This reverts commit f7af0b01a59aaac91473e2f920137004d39a310a.
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This commit adds support for "unhandledrejection" event.
This event will trigger event listeners registered using:
"globalThis.addEventListener("unhandledrejection")
"globalThis.onunhandledrejection"
This is done by registering a default handler using
"Deno.core.setPromiseRejectCallback" that allows to
handle rejected promises in JavaScript instead of Rust.
This commit will make it possible to polyfill
"process.on("unhandledRejection")" in the Node compat
layer.
Co-authored-by: Colin Ihrig <cjihrig@gmail.com>
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Co-authored-by: Bartek Iwańczuk <biwanczuk@gmail.com>
Co-authored-by: Divy Srivastava <dj.srivastava23@gmail.com>
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