When allocating metadata for a generic class we would copy
any prefix matter from the superclass metadata, if the
superclass metadata's address point was greater than our
address point.
While we may use prefix matter for resilient metadata
in the future, I don't believe just copying bytes like
this will prove useful.
* [Foundation] Byte access and methods that funnel to byte access for slices of discontiguous data (ala backed by dispatch_data_t) should void heap corruption and walking off the ends of buffers
* add missing parens on test_byte_access_of_discontiguousData
* Use the proper byte count in testing
Proper evaluation of conditional conformances at runtime (e.g., as part of
dynamic casting) is too large to tackle in the Swift 4.1 timeframe. For now,
record that a conformance is conditional in the protocol conformance record,
and always return "does not conform" to such types.
Fixes rdar://problem/35761301.
Array, Set, Dictionary, and Optional all provide unconditional conformances
to Encodable & Decodable that dynamically check whether their type arguments
are Encodable/Decodable. Now that we have conditional conformances, make
these unconditional conformances properly conditional, removing all of
the Swift 4-era type-erasure hacks.
Fixes rdar://problem/34989162.
* Refactor Indices and Slice to use conditional conformance
* Replace ReversedRandomAccessCollection with a conditional extension
* Refactor some types into struct+extensions
* Revise Slice documentation
* Fix test cases for adoption of conditional conformances.
* [RangeReplaceableCollection] Eliminate unnecessary slicing subscript operator.
* Add -enable-experimental-conditional-conformances to test.
* Gruesome workaround for crasher in MutableSlice tests
ELF is segment mapped, where the segment which contains a particular
section may be mapped to an address which does not correspond to the
address on disk. Since the reflection dumper does not use the loader to
load the image into memory, we must manually account for any section
offsets. Calculate this value when we query the mmap'ed image and wire
it through to the relative direct pointer accesses.
When switching to the linker table approach for the ELF metadata
introspection, this was uncovered as the segment containing the orphaned
sections was coalesced into a separate PT_LOAD header which had a non-0
offset for the mapping.
* [SR-4005] Allow heterogenous comparisons in elementsEqual
When a user is supplying a predicate to compare the type equivalence
isn’t required
* elementsEqualWithPredicate tests
Compares a string of a number with an integer value by using the
elementsEqualPredicate closure
* Update test expectations to use new sequence element types
* Update hardcoded test to reference sequence
