v8::Object::GetAlignedPointerFromInternalField() returns a random value
if Wrap() hasn't been run on the object handle. Causing v8 to abort if
certain getters are accessed. It's possible to access these getters and
functions during class construction through the AsyncWrap init()
callback, and also possible in a subset of those scenarios while running
the persistent handle visitor.
Mitigate this issue by manually setting the internal aligned pointer
field to nullptr in the BaseObject constructor and add necessary logic
to return appropriate values when nullptr is encountered.
PR-URL: https://github.com/nodejs/node/pull/6184
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
To prevent `ARRAY_SIZE(&arg)` (i.e., taking the array size of a pointer)
from happening again.
PR-URL: https://github.com/nodejs/node/pull/5969
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
When the previous set of changes (bfff07b) it was possible to have the
context get garbage collected while sandbox was still live. We need to
tie the lifetime of the context to the lifetime of the sandbox.
This is a backport of #5786 to v5.x.
Ref: https://github.com/nodejs/node/pull/5786
PR-URL: https://github.com/nodejs/node/pull/5800
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Simplify how node_contextify was keeping a weak reference to the
sandbox object in order to prepare for new style phantom weakness V8
API. It is simpler (and more robust) for the context to hold a
reference to the sandbox in an embedder data field. Doing otherwise
meant that the sandbox could become weak while the context was still
alive. This wasn't a problem because we would make the reference
strong at that point.
Since the sandbox must live at least as long as the context, it
would be better for the context to hold onto the sandbox.
PR-URL: https://github.com/nodejs/node/pull/5392
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Cleanup how node_contextify keeps weak references in order to prepare
for new style phantom weakness API. We didn't need to keep a weak
reference to the context's global proxy, as the context holds it.
PR-URL: https://github.com/nodejs/node/pull/5392
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Because Node modules are wrapped, errors on the first line
of a file leak the wrapper to the user and report the wrong
column number. This commit adds a line break to the module
wrapper so that the first line is treated the same as all
other lines. To compensate for the additional line, a line
offset of -1 is also applied to errors.
Fixes: https://github.com/nodejs/node/issues/2860
PR-URL: https://github.com/nodejs/node/pull/2867
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
I was walking through the vm changes and saw this particular `if` check
interesting. In case `ctx` is empty it's going to fail later anyways.
So, instead of putting an `if` check there;
option a - use CHECK
option b - do nothing
Considering the developer wanted to make sure `ctx` is not empty,
`CHECK` option looked more convenient.
PR-URL: https://github.com/nodejs/node/pull/3125
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
The `context_` is not initialized until the `CreateV8Context` will
return. Make sure that it will be empty (by moving away initialization
from constructor) at start, and ignore getter callbacks until it will
have some value.
PR-URL: https://github.com/nodejs/io.js/pull/2091
Reviewed-By: Trevor Norris <trev.norris@gmail.com>
By using the new SetHandler API instead of SetNamedPropertyHandler, we can
intercept symbols now. This forces us to use Maybes and MaybeLocals more,
since this new API does not have a non-maybe variant.
Fixes: https://github.com/nodejs/io.js/issues/884
PR-URL: https://github.com/nodejs/io.js/pull/1773
Reviewed-By: Fedor Indutny <fedor@indutny.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
No reason to install access checks if they're always going to return
true.
PR-URL: https://github.com/nodejs/io.js/pull/1773
Reviewed-By: Fedor Indutny <fedor@indutny.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
The accessors run inside an implicit HandleScope, there is no need to
create a new one.
PR-URL: https://github.com/nodejs/io.js/pull/2001
Reviewed-By: Trevor Norris <trev.norris@gmail.com>
Ensure that the debug context has an Environment assigned in case
a fatal error is raised.
The fatal exception handler in node.cc is not equipped to deal with
contexts that don't have one and can't easily be taught that due to
a deficiency in the V8 API: there is no way for the embedder to tell
if the data index is in use.
Fixes: https://github.com/iojs/io.js/issues/1190
PR-URL: https://github.com/iojs/io.js/pull/1229
Reviewed-By: Fedor Indutny <fedor@indutny.com>
The copyright and license notice is already in the LICENSE file. There
is no justifiable reason to also require that it be included in every
file, since the individual files are not individually distributed except
as part of the entire package.
Due to a recent V8 upgrade, more methods require Isolate as an argument.
PR-URL: https://github.com/iojs/io.js/pull/244
Reviewed-by: Ben Noordhuis <info@bnoordhuis.nl>
The template class information is received via the type of the first
argument. So there is no need to use Wrap<T>(handle).
PR-URL: https://github.com/joyent/node/pull/8110
Signed-off-by: Trevor Norris <trev.norris@gmail.com>
Reviewed-by: Fedor Indutny <fedor@indutny.com>
Reviewed-by: Alexis Campailla <alexis@janeasystems.com>
Reviewed-by: Julien Gilli <julien.gilli@joyent.com>
The template class information is received via the type of the first
argument. So there is no need to use Wrap<T>(handle).
PR-URL: https://github.com/joyent/node/pull/8110
Signed-off-by: Trevor Norris <trev.norris@gmail.com>
Reviewed-by: Fedor Indutny <fedor@indutny.com>
Reviewed-by: Alexis Campailla <alexis@janeasystems.com>
Reviewed-by: Julien Gilli <julien.gilli@joyent.com>
The previous commits fixed oversights in destructors that should have
been marked virtual but weren't. This commit marks destructors from
derived classes with the override keyword.
Now that we are building with C++11 features enabled, replace use
of NULL with nullptr.
The benefit of using nullptr is that it can never be confused for
an integral type because it does not support implicit conversions
to integral types except boolean - unlike NULL, which is defined
as a literal `0`.
Attach the per-context execution environment directly to API functions.
Rationale:
* Gets node one step closer to multi-isolate readiness.
* Avoids multi-context confusion, e.g. when the caller and callee live
in different contexts.
* Avoids expensive calls to pthread_getspecific() on platforms where
V8 does not know how to use the thread-local storage directly.
(Linux, the BSDs.)
PR-URL: https://github.com/node-forward/node/pull/18
Reviewed-By: Fedor Indutny <fedor@indutny.com>
Mechanically replace assert() statements with UNREACHABLE(), CHECK(),
or CHECK_{EQ,NE,LT,GT,LE,GE}() statements.
The exceptions are src/node.h and src/node_object_wrap.h because they
are public headers.
PR-URL: https://github.com/node-forward/node/pull/16
Reviewed-By: Fedor Indutny <fedor@indutny.com>
API callback functions don't need to create a v8::HandleScope instance
because V8 already creates one in the JS->C++ adapter frame.
PR-URL: https://github.com/node-forward/node/pull/16
Reviewed-By: Fedor Indutny <fedor@indutny.com>
Because of behavior change of some V8 APIs (they mostly became more
strict), following modules needed to be fixed:
* crypto: duplicate prototype methods are not allowed anymore
* contextify: some TryCatch trickery, the binding was using it
incorrectly
* util: maximum call stack error is now crashing in a different place
Reviewed-By: Trevor Norris <trevnorris@gmail.com>
PR-URL: https://github.com/joyent/node/pull/8476
Because of behavior change of some V8 APIs (they mostly became more
strict), following modules needed to be fixed:
* crypto: duplicate prototype methods are not allowed anymore
* contextify: some TryCatch trickery, the binding was using it
incorrectly
* util: maximum call stack error is now crashing in a different place
Reviewed-By: Trevor Norris <trevnorris@gmail.com>
PR-URL: https://github.com/joyent/node/pull/8476
Compiles and executes source code in V8's debugger context. Provides
a programmatic way to get access to the debug object by executing:
var Debug = vm.runInDebugContext('Debug');
Fixes#7886.
Reviewed-by: Trevor Norris <trev.norris@gmail.com>
Do not ever call `Delete()` on `proxy_global_`, it will invoke
`GlobalPropertyDeleteCallback` and cause crash because of the infinite
recursion.
fix#7529
This prevents segfaults when a native method is reassigned to a
different object (which corrupts args.This()). When unwrapping,
clients should use args.Holder() instead of args.This().
Closes#6690.
Signed-off-by: Trevor Norris <trev.norris@gmail.com>
The two biggest changes are that v8::Script::New() has been removed and
that a v8::Script object now has to be explicitly bound to a context if
you want to run it from another context.
We can accommodate both changes without breaking the vm module's public
API or even the internal JS API.
Make vm.runInContext() and vm.runInNewContext() stop copying the Proxy
object from the parent context into the new context when --harmony or
--harmony_proxies is in effect because it overwrites the new context's
native Proxy object.
This commit also adds a regression test for Harmony symbols. They work
okay in the current implementation and the test should ensure it stays
that way.
Try embedding the ` ... ^` lines inside the `SyntaxError` (or any other
native error) object before giving up and printing them to the stderr.
fix#6920fix#1310
Built-in modules should be automatically registered, replacing the
static module list. Add-on modules should also be automatically
registered via DSO constructors. This improves flexibility in adding
built-in modules and is also a prerequisite to pure-C addon modules.
BaseObject is a class that just handles the Persistent handle attached
to the class instance.
This also removed WeakObject. Reordering the inheritance chain helps
prevent unneeded calls on instances that don't call MakeCallback.
Create a HandleScope before calling the Environment::GetCurrent() that
takes a v8::Isolate* as an argument because it creates a handle with
the call to v8::Isolate::CurrentContext().
Trevor Norris
Ben Noordhuis
Anna Henningsen
Ali Ijaz Sheikh
Myles Borins
Tristian Flanagan
Oguz Bastemur
Michaël Zasso
Fedor Indutny
Domenic Denicola
isaacs
Denys Zariaiev
C. Scott Ananian
Fedor Indutny
Keith M Wesolowski