Nobody made use of the ErrorOr return value and it just added more
chance of confusion, since it was not clear if failing to sniff an
image should return an error or false. The answer was false, if you
returned Error you'd crash the ImageDecoder.
This object is responsible for handling async functions in bytecode,
and this commit fully rewrites it, now it does:
* creates and keeps alive a top level promise, which callers can attach
their `then` clauses
* creates and clear a handle to itself, to assure that it does not get
garbage collected
* properly handles all possible ways a async function could halt and
when possible continues the execution immediately
We use generators in bytecode to approximate async functions, but the
code generated by AwaitExpressions did not have the value processing
paths that Yield requires, eg the `generator.throw()` path, which is
used by AsyncFunctionDriverWrapper to signal Promise rejections.
This uses a newly added instruction `ScheduleJump`
This instruction tells the finally proceeding it, that instead of
jumping to it's next block it should jump to the designated block.
To achieve this it now uses recursive descend, to make the state
managements easier.
With this we now correctly handle try-catch-finally blocks correctly,
modeling all possible controll flows between these blocks, which allows
analysis and optimization passes to make more accurate descisions about
accessibility of the enclosed blocks
The output of the DeprecatedString::bijective_base_from() is now
correct for numbers larger than base^2.
This makes column names display correctly in Spreadsheet.
Turns out extended-lossless-animated.webp did have a loop count of 0.
So I opened it in Hex Fiend and changed the byte at position 42
(which is the first byte of the little-endian u16 storing the loop
count) to 0x2A, so that the test can compare the loop count to something
not 0.
This commit adds a "Apply Mask" action which merges the active layer
mask with the layer bitmap. The option is only displayed if the active
layer is masked.
Imported functions in Wasm may throw JS exceptions, and we need to
preserve these exceptions so we can pass them to the calling JS code.
This also adds a `assert_wasm_result()` API to Result for cases where
only Wasm traps or values are expected (e.g. internal uses) to avoid
making LibWasm (pointlessly) handle JS exceptions that will never show
up in reality.
This is not related to the track controls and it may move into another
separate widget in the future. The move also allows to simplify the
octave slider callback logic.
This more generic name will better reflect the purpose of the widget in
the future, as this commit begins the long process of enhancing the
widget into a container for all controls of Piano's currently selected
track.
This adds the condition member.type->is_string() to the if statement, so
that we now conditionally check the dictionary member is a new string
and associated with an optional constructor parameter.
This reorganizes things so that:
* When initially decoding chunks, we only store pointers to
their data and don't look at the contents
* We allow pausing decoding after decoding the first chunk, since
that's where the dimensions are stored, and we don't need to read
more than that if we only care about dimensions. (Currently
inconsequential, but maybe we want to get dimensions after
receiving the first few bytes off the network in the future.)
* We then have separate methods to interpret chunk data
(only for the first few bytes which store the size, so far.)
Emoji sequences in the grapheme segmentation spec are a bit tricky:
\p{Extended_Pictographic} Extend* ZWJ × \p{Extended_Pictographic}
Our current strategy of tracking a boolean to indicate if we are in an
emoji sequence was causing us to break up emoji made of multiple sub-
sequences. For example, in the "family: man, woman, girl, boy" sequence:
U+1F468 U+200D U+1F469 U+200D U+1F467 U+200D U+1F466
We would break at indices 0 (correctly) and 6 (incorrectly).
Instead of tracking a boolean, it's quite a bit simpler to reason about
emoji sequences by just skipping past them entirely. Note that in cases
like the above emoji, we skip one sub-sequence at a time.
We briefly discussed this when adding the new String type but couldn't
settle on a name. However, having to use String::from_utf8() on every
literal string is a bit unwieldy, so let's have these options available!
Naming-wise '_string' is not as short as 'sv' but should be relatively
clear; it also matches '_bigint' and '_ubigint' in length.
'_short_string' may be longer than the actual string itself, but it's
still an improvement over the static function :^)
Since our C++ source files are UTF-8 encoded anyway, it should be
impossible to create a string literal with invalid UTF-8, so including
that in the name is not as important as in the function that can receive
arbitrary data.
