When formatting a currency style pattern with compact notation, we were
(trying to) doubly insert the currency symbol into the formatted string.
We would first look up the currency pattern in GetNumberFormatPattern
(for the en locale, this is "¤#,##0.00", which our generator transforms
to "{currency}{number}").
When we hit the "{number}" field, NumberFormat will do a second lookup
for the compact pattern to use for the number being formatted. By using
the currency compact patterns, we receive a second pattern that also has
the currency symbol (for the en locale, if formatting the number 1000,
this is "¤0K", which our generator transforms to
"{currency}{number}{compactIdentifier:0}". This second lookup is not
supposed to have currency symbols (or any other symbols), thus we hit a
VERIFY_NOT_REACHED().
Instead, we are meant to use the decimal compact pattern, and allow the
currency symbol to be handled by only the outer currency pattern.
This works by adding source start/end offset to every bytecode
instruction. In the future we can make this more efficient by keeping
a map of bytecode ranges to source ranges in the Executable instead,
but let's just get traces working first.
Co-Authored-By: Andrew Kaster <akaster@serenityos.org>
This is not we're supposed to do according to https://tc39.es/ecma262/#sec-runtime-semantics-propertydefinitionevaluation
Furthermore, this was observable by ToPrimitive looking up toString and
valueOf and potentially calling them if they exist. The big ticket
issue however is that for objects without toString and valueOf, such as
null-proto objects, this would unexpectedly throw.
When a substitution refers to a 2-digit capture group that doesn't exist
we need to check if the first digit refers to an existing capture group.
In other words, '$10' should be treated as capture group #1, followed by
the literal '0' if 1 is a valid capture group but 10 is not.
This makes the Dromaeo "dom-query" subtest run to completion.
When determining the precedence of the + and - operators, the parser
always returned the precedence using these operators in a binary
expression (lower than division!). The context of whether the operator
is used in a unary or binary expression must be taken into account.
The first test crashes in AST, and fails in bytecode, so the best thing
which we can do here without complicated test setup logic is to just
skip this test for now. Interestinglny, this crashing test is very
similar to the existing thenable test case, and only differs in the way
that the thenable is given to the async function.
The next two tests are effectively the same as the above two mentioned
tests, with the only different being that the thenable calls the fulfill
function. For the test case that crashes in AST mode, doing that appears
to fix the test case for AST mode (but both still fail in bytecode).
To allow us to add tests that are failing now, but can be enabled as
soon as a change is made to make it pass (without any opportunity to
forget about enabling it).
Additionally, support is added for `xfailIf`, for tests that are
expected to fail given a certain condition, but are expected to pass
otherwise. This is intended to be used for tests that fail in bytecode
mode, but pass in AST (and vice versa).
This fixes an issue where returning inside a `try` block and then
calling a function inside `finally` would clobber the saved return
value from the `try` block.
Note that we didn't need to change the base of register allocation,
since it was already 1 too high.
With this fixed, https://microsoft.com/edge loads in bytecode mode. :^)
Thanks to Luke for reducing the issue!
The Heap::uproot_cell() API was used to implement markAsGarbage() which
was used in 3 tests to forcibly destroy a value, even if it had
references on the stack or elsewhere.
This patch rewrites the 3 tests that used this mechanism to be
structured in a way that allows garbage collection to collect the values
as intended without hacks. And now that the uprooting mechanism is no
longer needed, it's uprooted as well.
This fixes 3 test-js tests in bytecode mode. :^)
Since we can't rely on shape identity (i.e its pointer address) for
unique shapes, give them a serial number that increments whenever a
mutation occurs.
Inline caches can then compare this serial number against what they
have seen before.
This change fixes an issue where identifiers used in default function
parameters were being "registered" in the function's parent scope
instead of its own scope. This bug resulted in incorrectly detected
local variables. (Variables used in the default function parameter
expression should be considered 'captured by nested function'.)
To resolve this issue, the function scope is now created before parsing
function parameters. Since function parameters can no longer be passed
in the constructor, a setter function has been introduced to set them
later, when they are ready.
These are not strictly unresolvable references. Treating them as such
fails an assertion in the `delete UnaryExpression` semantic (which is
Reference::delete_ in our implementation) - we enter the unresolvable,
branch, which then asserts that the [[Strict]] slot of the reference is
false.
This makes the behavior of `Symbol` correct in strict mode, wherein if
the receiver is a symbol primitive, assigning new properties should
throw a TypeError.
ECMA-262 implies that `MIN_VALUE` should be a denormalized value if
denormal arithmetic is supported. This is the case on x86-64 and AArch64
using standard GCC/Clang compilation settings.
test262 checks whether `Number.MIN_VALUE / 2.0` is equal to 0, which
only holds if `MIN_VALUE` is the smallest denormalized value.
This commit renames the existing `NumericLimits<FloatingPoint>::min()`
to `min_normal()` and adds a `min_denormal()` method to force users to
explicitly think about which one is appropriate for their use case. We
shouldn't follow the STL's confusingly designed interface in this
regard.
The valid range for temporal values (`nsMinInstant`/`nsMaxInstant`)
means performing nanosecond-valued integers could lead to an overflow.
NB: Only the `roundingMode: "day"` case was affected, as all others were
already performing the division on floating-point `fractional_second`
values. I'm adding `.0` suffixes everywhere to make this fact clearer.
This adds a few local tests as well, as those are tested with sanitizers
enabled by default, unlike test262.
This prototype is a bit tricky in that we need to maintain the iteration
state of the mapped iterator's inner iterator as we return values to the
caller. To do this, we create a FlatMapIterator helper to perform the
steps that apply to the current iteration state.
