- `Proxy/getOwnPropertyDescriptor/call-parameters.js`
Fixes a call to `Object.getOwnPropertyDescriptor` without the prop
param. Not actually a huge problem, as the test wasn't depending on
it.
- `Proxy/getOwnPropertyDescriptor/result-type-is-not-object-nor-undefined`
This test asserted that `function() {}` should throw with the
following spec step, which is incorrect, as functions are typed as
`Object` in the spec.
"""
1. If Type(trapResultObj) is neither Object nor Undefined, throw a
TypeError exception.
"""
Migrating all tests to this API is necessary to prevent tests from hanging indefinitely when a SAB is sent to a worker but the code in the worker attempts to create a non-sharable TypedArray (something that is not Int32Array or BigInt64Array). When that scenario occurs, an exception is thrown and the agent worker can no longer communicate with any other threads that control the SAB. If the main thread happens to be spinning in the $262.agent.waitUntil() while loop, it will never meet its termination condition and the test will hang indefinitely.
Because we've defined $262.agent.broadcast(SAB) in https://github.com/tc39/test262/blob/master/INTERPRETING.md, there are host implementations that assume compatibility, which must be maintained.
Migrating all tests to this API is necessary to prevent tests from hanging indefinitely when a SAB is sent to a worker but the code in the worker attempts to create a non-sharable TypedArray (something that is not Int32Array or BigInt64Array). When that scenario occurs, an exception is thrown and the agent worker can no longer communicate with any other threads that control the SAB. If the main thread happens to be spinning in the $262.agent.waitUntil() while loop, it will never meet its termination condition and the test will hang indefinitely.
Because we've defined $262.agent.broadcast(SAB) in https://github.com/tc39/test262/blob/master/INTERPRETING.md, there are host implementations that assume compatibility, which must be maintained.
Previously, these tests simply compared against an equivalent regular expression pattern by generating a large string containing either all code points up to U+FFFF or U+10FFFF, depending on the `u` flag, and then performing:
str.replace(re, '') === str.replace(otherRe, '');
These two `String#replace` calls can be optimized into a single `RegExp#test` call by following the pattern used in the property escapes tests at https://github.com/mathiasbynens/unicode-property-escapes-tests.
$262.agent.MAX_TIME_EPSILON was intended to be used for callers like `Atomics.wait(typedArray, indexNumber, valueNumber, timeoutNumber)` where all parameters with the `Number` suffix denote values which are already Number values. It should not be used for `Atomics.wait(typedArray, indexObject, valueObject, timeoutObject)` where all parameters with the `Object` suffix denote values which are Object values, because in that case we'd require that `ToNumber(objectValue)` (potentially invoked multiple times) completes in less than 100 milliseconds (the default value for MAX_TIME_EPSILON).
Also removes $262.agent.MAX_TIME_EPSILON because it is now no longer used.
Gus Caplan
Rick Waldron
Leo Balter
Kevin Gibbons
Adrian Heine
Kevin Gibbons
Mathias Bynens
Richard Gibson
André Bargull
Andrew McCreight
Ashley Hauck
rhuanjl