This is just something I spotted looking around the code, previously
the PassPipelineExecutable was passed by value to
generate_cfg_for_block, which generated the CFG then just dropped it on
the floor. Making this a reference results in the CFG actually getting
generated.
We can delete for_each_bound_name() because there is more generic
version of this function called for_each_bound_identifier() that gives
you identifier using which you can get both name and check if it is
local/global.
Similar to the scoped continue and break, the only two differences
between these functions is the scope that is scanned for a matching
label, and the specific handling of a continue/break boundary.
Rather than splitting the Iterator type and its AOs into two files,
let's combine them into one file to match every other JS runtime object
that we have.
This is a normative change in the Set Methods proposal. See:
f3d5206
Note that this is normative due to an IsCallable check being deferred to
some time after its previous invocation in the GetKeysIterator.
This is an editorial change in the ECMA-262 spec. See:
784fc65
Note we were already doing this for a nicer error message. This is also
what lets GetIteratorFromMethod accept the method parameter as a nonnull
pointer.
This is an editorial change in the ECMA-262 spec. See:
ff60140
In doing so, as the new name implies, callsites are updated to pass in
an IteratorRecord themselves, rather than an iterable value.
This is an editorial change in the ECMA-262 spec. See:
956e5af
This splits the GetIterator AO into two AOs, to remove some recursion
and to (soon) remove optional parameters.
This is in preparation of implementing %IteratorHelperPrototype%.return.
That will invoke GeneratorResumeAbrupt, which will execute the generator
with an abrupt completion. At that time, we must take care to close the
current inner iterator.
This is required for %IteratorHelperPrototype%.return, which needs to
operate on the internal slots of the base GeneratorObject. Doing so also
provides us with the appropriate VM to be used in invocations to the
overridden IteratorHelper::execute.
In the Iterator Helpers proposal, we must create a generator object with
additional internal slots and behavior differences.
GeneratorObject is currently implemented assuming it wraps around an
ECMAScriptFunctionObject with generated bytecode. In this proposal, we
instead have "Abstract Closure" blocks. So this marks the `execute`
method as virtual, to allow the future subclass to essentially just
invoke those closures.
We will also require mutable access to the [[GeneratorState]] internal
slot.
This optional parameter is not currently set by any caller, but will be
for the Iterator Helpers proposal. In all specs, this parameter is a
static string, so we can just use a StringView rather than allocating a
(Deprecated)String on each invocation.
This also changes this optional parameter to be passed by const-ref, as
it does not need to be copied.
The dollar sign is a special character in POSIX shells and in the Ninja
build file format. If the file name contains a `$`, something goes wrong
in the escaping/unescaping of this symbol, and CMake/GCC/Clang generate
invalid dependency files where not all instances of `$` are escaped
properly. Because of this, Ninja fails to rebuild `$262Object.cpp` if
the headers included by it have changed.
Stale `$262Object.cpp.o` files have been the cause of mysterious crashes
multiple times which only go away after doing a clean build. Let's
prevent these from happening again by removing the `$` from the
filename.
We were implicitly converting the throw completion's value into a normal
completion in `AsyncFunctionDriverWrapper::continue_async_execution`,
which meant the routine generated by `generate_await` didn't know that
the value had to be thrown when execution resumed.
Without this change, we mistakenly pass 13 tests for `Array.fromAsync`,
which we do not implement yet. But even with that "regression", we pass
17 more test262 tests in total.
If an exception was thrown while evaluating the argument of an `await`
expression, we should jump to the continuation block instead of eagerly
rejecting the caller async function.
This restores the behavior prior to the addition of the separate `Await`
instruction in d66eb4e3.
If the exception from the `try` block has already been caught by
`catch`, we need to clear the saved exception before entering `finally`
so that ContinuePendingUnwind will not re-throw it.
9 new passes on test262 :^)
CreateVariable is not needed for locals because they are not stored in
environment and created binding will not be used. Also if all variables
in loop initialization sections are local then CreateLexicalEnvironment
and LeaveLexicalEnvironment can also be ommitted.
