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The scroller might be hidden or (in theory) non-opaque.
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The three major changes are:
- Parsing parameters, the function body, and then the full assembled
function source all separately. This is required by the spec, as
function parameters and body must be valid each on their own, which
cannot be guaranteed if we only ever parse the full function.
- Returning an ECMAScriptFunctionObject instead of a FunctionExpression
that needs to be evaluated separately. This vastly simplifies the
{Async,AsyncGenerator,Generator,}Function constructor implementations.
Drop '_node' from the function name accordingly.
- The prototype is now determined via GetPrototypeFromConstructor and
passed to OrdinaryFunctionCreate.
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This should have been the default as it roughly represents the
OrdinaryFunctionCreate AO.
For now, keep two overloads and continue to guess the required prototype
from the function kind in most cases. The prototype needs to be passed
in explicitly when it may be derived from user code, such as in the
CreateDynamicFunction AO.
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The parentheses are dealt with outside this function, so we shouldn't
use the (non)existence of one as the condition for consuming another
comma and then parameter. Just check for a comma instead. This becomes
relevant when parsing standalone function parameters as per the spec in
the CreateDynamicFunction AO.
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The curly braces are not part of the FunctionBody production. This
becomes relevant when parsing a standalone function body as per the spec
in the CreateDynamicFunction AO.
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This is what CreateDynamicFunction calls it.
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We need to wait up to CAP.TO units of 500ms when changing CC.EN to
enable or disable the controller.
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This results in a measurable (and free!) 2% improvement in test-js
run time.
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This will allow us to eventually switch dbgln in the kernel to an
allocation-free (although length-bounded) formatter.
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Since the inline capacity of the Vector return type was not specified
explicitly, the vector was automatically copied to a 0-length inline
capacity one, essentially eliminating the optimization.
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The delete key can now be used to erase the pixels on the active layer
contained within the selection rectangle.
Closes #11861
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In this particular case, auto is a footgun, because we are very
certain about the type that we want to return. const-correctness
could have been violated (as Vector did), because Iterator did not
enforce that the returned pointer was actually const if the Iterator
was an Iterator over a const container.
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Methods marked as const should always only return Foo const&, never
Foo&. Previously, this only worked correctly with Foo, but not with
Foo&: If someone fetched a T const&, this would have been expanded
to Foo& const& which is just Foo&. Therefore, they were able to modify
the elements of the Vector, even though it was marked as const.
This commit fixes that by introducing VisibleType as an alias for
RemoveReference<T> and using it throughout Vector.
There are also other cases where we don't require a mutable reference
to the underlying type, only a const reference (for example in a find
operation). In these cases, we now also correctly expand the type
to Foo const&.
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The point of a reference type is to behave just like the referred-to
type. So, a Foo& should behave just like a Foo.
In these cases, we had a const Vector. If it was a const Vector of Foo,
iterating over the Vector would only permit taking const references to
the individual Foos.
However, we had a const Vector of Foo&. The behavior should not
change. We should still only be permitted to take const references to
the individual Foos. Otherwise, we would be allowed to mutate the
individual Foos, which would mutate the elements of the const Vector.
This wouldn't modify the stored pointers, but it would modify the
objects that the references refer to. Since references should be
transparent, this should not be legal.
So it should be impossible to get mutable references into a const
Vector. Since we need mutable references in these cases to call the
mutating member functions, we need to mark the Vector as mutable as
well.
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If the Threading::BackgroundAction for filesystem indexing in
FileProvider hadn't finished by the time the main thread exited, it
would still try to access the FileProvider object that lived in the main
thread, thereby causing a segfault and crashing. This commit prevents
FileProvider from being destroyed while the background thread is still
running by giving the background thread a strong reference to its
FileProvider.
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This seems to have been missed when these functions were renamed.
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Given an empty file, unzip would try to create a zero-size memory
mapping of that file, which would fail with EINVAL. With this commit,
attempting to unzip an empty file of course still fails, since that's
not a valid PKZIP file, but it now fails for the correct reason and with
the correct error message.
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These infallible resource factory functions were only there to ease the
conversion to the new factory functions. Since all child classes of
VMObject now use the fallible resource factory functions, we don't
need the infallible versions anymore.
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This commit moves the allocation of the resources required for
SharedInodeVMObject from its constructors to its factory functions.
We're making this change to expose the fallibility of the allocation.
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This commit moves the allocation of the resources required for
PrivateInodeVMObject from its constructors to its factory functions.
We're making this change to expose the fallibility of the allocation.
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This commit moves the allocation of the resources required for
InodeVMObject from its constructors to the constructors of its child
classes.
We're making this change to give the child classes the chance to expose
the fallibility of the allocation.
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This commit moves the allocation of the resources required for
AnonymousVMObject from its constructors to its factory functions.
We're making this change to expose the fallibility of the allocation.
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This commit moves the allocation of the resources required for VMObject
from its constructors to the constructors of its child classes.
We're making this change to give the child classes the chance to expose
the fallibility of the allocation.
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This is particularly useful in the Kernel, where the physical pages of
a VMObject are stored as a FixedArray but often passed around as a Span
from which a new FixedArray should be cloned.
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We really want to be able to construct FixedArray from a list of
non-copyable but movable objects. This constructor is useful for
such things.
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Implementing years_to_days_since_epoch without a loop will be tricky.
The TimeFromYear AO gives a good enough approximation for MakeDay until
we figure that out.
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These are needed outside of the Date object .cpp file, so move them to
the header.
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First, this adds a constructor to the Date object to be created from a
plain double. This is a first step to removing Core::DateTime as the
basis for the Date object. A subsequent commit will remove the now-
unused data from the object.
Next, this implements the constructor in accordance to the spec. The
constructor when NewTarget is undefined no longer allocates a Date on
the heap. The other constructor properly uses recently created AOs to
handle time zone and ensure the created [[DateValue]] is valid. Other
methods on the constructor (Date.now) have not been touched yet.
Last, the prototype is reimplemented. Again, we use other AOs to handle
time zones and time clipping. Not all prototypes are fixed; most of them
are, but a few (e.g. Date.prototype.getTimezoneOffset) were not fixed,
but left in a mostly unimplemented state for another commit.
In all of the above, spec comments are added. This is a rather large
change; but it's tough to do any of these parts individually without
breaking everything else.
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It will be needed by the Date constructor.
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It is undefined behavior to cast from a double to an integer if the
value does not fit in the limits of the integer.
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In commmit 7d2834344a7635ec45aba28a0351feca8e5f1c17, I think I combined
the definitions of the LocalTZA and UTC AOs in my head, and thought the
offset should be negated within LocalTZA. Instead, the offset should be
left untouched, and the UTC AO is responsible for doing the subtraction.
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When viewing the code side-by-side with the spec, it's much nicer when
everything is in the same order.
Also fixes the spec link for Date.prototype.getMilliseconds (it pointed
at setMilliseconds by mistake).
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If the tzname is unknown, fall back to UTC for now. Unknown time zones
are most likely due to not parsing RULE entries yet, but at the very
least, it only makes sense for current_time_zone to return a time zone
that LibTimeZone actually knows about.
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The only purpose of the remap() in Region::try_clone() is to ensure
non-writable page table entries for CoW regions. If a region is already
non-writable, there's no need to waste time updating the page tables.
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When mapping or unmapping completely inaccessible memory regions,
we don't need to update the page tables at all. This saves a bunch of
time in some situations, most notably during dynamic linking, where we
make a large VM reservation and immediately throw it away. :^)
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There's no reason to make a private read-only mapping just for reading
(and validating) the ELF headers, and copying out the data segments.
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We were already only tracking kernel regions, this patch just makes it
more clear by having it reflected in the name of the registration
helpers.
We also stop calling them for userspace regions, avoiding some spinlock
action in such cases.
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This optimization was added when region lookup was O(n), before we had
the O(log n) RedBlackTree. Let's remove it to simplify the code, as we
have no evidence that it remains valuable.
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