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For setreuid and setresuid syscalls, -1 means to set the current
uid/euid/gid/egid value, to be more convenient for programming.
However, for other syscalls where we pass only one argument, there's no
justification to specify -1.
This behavior is identical to how Linux handles the value -1, and is
influenced by the fact that the manual pages for the group of one
argument syscalls that handle ID operations is ambiguous about this
topic.
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The goal of this file is to enable C++ overloaded functions for
standard builtin functions that we use. It contains fallback
implementations for systems that do not have the builtins available.
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This unbreaks the /var/run/utmp system which starts out as an empty
string, and is then turned into an object by the first update.
This isn't necessarily the best way for this to work, but it's how
it used to work, so this just fixes the regression for now.
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The instructions can have dependencies (e.g. Repeat), so only unify
equal blocks instead of consecutive instructions.
Fixes #11247.
Also adds the minimal test case(s) from that issue.
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Fixes a crash that was caused by a syntax error which is difficult to
catch by the parser: usually identifiers are accepted in column lists,
but they are not in a list of column values to be inserted in an INSERT.
Fixed this by putting in a heuristic check; we probably need a better
way to do this.
Included tests for this case.
Also introduced a new SQL Error code, `NotYetImplemented`, and return
that instead of crashing when encountering unimplemented SQL.
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The handling of filesystem level errors was basically non-existing or
consisting of `VERIFY_NOT_REACHED` assertions. Addressed this by
* Adding `open` methods to `Heap` and `Database` which return errors.
* Changing the interface of methods of these classes and clients
downstream to propagate these errors.
The constructors of `Heap` and `Database` don't open the underlying
filesystem file anymore.
The SQL statement handlers return an `SQLErrorCode::InternalError`
error code if an error comes back from the lower levels. Note that some
of these errors are things like duplicate index entry errors that should
be caught before the SQL layer attempts to actually update the database.
Added tests to catch attempts to open weird or non-existent files as
databases.
Finally, in between me writing this patch and submitting the PR the
AK::Result<Foo, Bar> template got deprecated in favour of ErrorOr<Foo>.
This resulted in more busywork.
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For example, consider the following adjacent entries in UnicodeData.txt:
3400;<CJK Ideograph Extension A, First>;Lo;0;L;;;;;N;;;;;
4DBF;<CJK Ideograph Extension A, Last>;Lo;0;L;;;;;N;;;;;
Our current implementation would assign the display name "CJK Ideograph
Extension A" to code points U+3400 & U+4DBF, but not to the code points
in between. Not only should those code points be assigned a name, but
the Unicode spec also has formatting rules on what the names should be
(the names for these ranged code points are not as they appear in
UnicodeData.txt).
The spec also defines names for code point ranges that actually are
listed individually in UnicodeData.txt. For example:
2F800;CJK COMPATIBILITY IDEOGRAPH-2F800;Lo;0;L;4E3D;;;;N;;;;;
2F801;CJK COMPATIBILITY IDEOGRAPH-2F801;Lo;0;L;4E38;;;;N;;;;;
2F802;CJK COMPATIBILITY IDEOGRAPH-2F802;Lo;0;L;4E41;;;;N;;;;;
Code points are only coalesced into a range if all fields after the name
are equivalent. Our parser will insert the range and its name formatting
pattern when it comes across the first code point in that range, then
ignore other code points in that range. This reduces the number of names
we generated by nearly 2,000.
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The recently introduced read buffer in IODevice broke relative seeking.
The amount of data in the buffer wouldn't get taken into account.
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At the moment we just check if we *can* render a simple triangle, we do
not yet actually test if the image is indeed the triangle we wanted.
This test also outputs the rendered image when GL_DEBUG is enabled to a
file called "picture.bmp" for manual verification.
Co-authored-by: sunverwerth <s.unverwerth@serenityos.org>
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Since we no longer populate a Vector<String> the lifetime of the strings
in all of these tests is now messed up, as the Vector<StringView> now
points to free'd memory.
We attempt to fix this for the unit tests, by saving the results in a
RAII type that should live as long as the test wants to validate some
output of the ArgParser.
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...and remove the Vector<String> variant since there are no remaining
users of this API.
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MappedFile is strictly a userspace thing, so it doesn't belong in AK
(which is supposed to be user/kernel agnostic.)
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This is a first step towards better error propagation from image codecs.
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As noted by ECMA-402, if a supported locale contains all of a language,
script, and region subtag, then the implementation must also support the
locale without the script subtag. The most complicated example of this
is the zh-TW locale.
The list of locales in the CLDR database does not include zh-TW or its
maximized zh-Hant-TW variant. Instead, it inlcudes the zh-Hant locale.
However, zh-Hant-TW is listed in the default-content locale list in the
cldr-core package. This defines an alias from zh-Hant-TW to zh-Hant. We
must then also support the zh-Hant-TW alias without the script subtag:
zh-TW. This transitively maps zh-TW to zh-Hant, which is a case quite
heavily tested by test262.
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This is a naive implementation based on the symmetry with `asin`.
Before, I'm not really sure what we were doing, but it was returning
wildly incorrect results.
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The initial `ForkStay` is only needed if the looping block has a
following block, if there's no following block or the following block
does not attempt to match anything, we should not insert the ForkStay,
otherwise we would be rewriting `a+` as `a*` by allowing the 'end' to be
executed.
Fixes #10952.
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This isn't a complete conversion to ErrorOr<void>, but a good chunk.
The end goal here is to propagate buffer allocation failures to the
caller, and allow the use of TRY() with formatting functions.
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Also add slightly richer parse errors now that we can include a string
literal with returned errors.
This will allow us to use TRY() when working with JSON data.
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Currently, we get the following results
-1 - -2 = -1
-2 - -1 = 1
Correct would be:
-1 - -2 = 1
-2 - -1 = -1
This was already attempted to be fixed in 7ed8970, but that change was
incorrect. This directly translates to LibJS BigInts having the same
incorrect behavior - it even was tested.
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We were passing raw Gfx::Bitmap objects into the various image decoders
instead of encoded image data. This made all of them fail, but the test
expectations were set up in a way that aligned with this outcome.
With this patch, we now test the codecs for real. Except ICO, since we
don't have an ICO file handy. That's a FIXME.
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Same as Vector, ByteBuffer now also signals allocation failure by
returning an ENOMEM Error instead of a bool, allowing us to use the
TRY() and MUST() patterns.
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Preparation for using Error.h from Vector.h. This required moving some
things out of line.
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This patch introduces table joins. It uses a pretty dumb algorithm-
starting with a singleton '__unity__' row consisting of a single boolean
value, a cartesian product of all tables in the 'FROM' clause is built.
This cartesian product is then filtered through the 'WHERE' clause,
again without any smarts just using brute force.
This patch required a bunch of busy work to allow for example the
ColumnNameExpression having to deal with multiple tables potentially
having columns with the same name.
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Because SQL is the craptastic language that it is, sometimes expressions
need to know details about the calling statement. For example the tables
in the 'FROM' clause may be needed to determine which columns are
referenced in 'WHERE' expressions. So the current statement is added
to the ExecutionContext and a new 'execute' overload on Statement is
created which takes the Database and the Statement and builds an
ExecutionContaxt from those.
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These are needed to distinguish columns from different tables with the
same column name in one and the same (joined) Tuple. Not quite happy
yet with this API; I think some sort of hierarchical structure would be
better but we'll burn that bridge when we get there :^)
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This file contains the list of locales which default to their parent
locale's values. In the core CLDR dataset, these locales have their own
files, but they are empty (except for identity data). For example:
https://github.com/unicode-org/cldr/blob/main/common/main/en_US.xml
In the JSON export, these files are excluded, so we currently are not
recognizing these locales just by iterating the locale files.
This is a prerequisite for upgrading to CLDR version 40. One of these
default-content locales is the popular "en-US" locale, which defaults to
"en" values. We were previously inferring the existence of this locale
from the "en-US-POSIX" locale (many implementations, including ours,
strip variants such as POSIX). However, v40 removes the "en-US-POSIX"
locale entirely, meaning that without this change, we wouldn't know that
"en-US" exists (we would default to "en").
For more detail on this and other v40 changes, see:
https://cldr.unicode.org/index/downloads/cldr-40#h.nssoo2lq3cba
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Another one that was used in a fajillion places.
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