This is a bit of a hodge-podge of related changes that I decided
weren't quite worth teasing apart:
First, rename the weak{Retain,Release} entrypoints to
unowned{Retain,Release} to better reflect their actual use
from generated code.
Second, standardize the names of the rest of the entrypoints around
unowned{operation}.
Third, standardize IRGen's internal naming scheme and API for
reference-counting so that (1) there are generic functions for
emitting operations using a given reference-counting style and
(2) all operations explicitly call out the kind and style of
reference counting.
Finally, implement a number of new entrypoints for unknown unowned
reference-counting. These entrypoints use a completely different
and incompatible scheme for working with ObjC references. The
primary difference is that the new scheme abandons the flawed idea
(which I take responsibility for) that we can simulate an unowned
reference count for ObjC references, and instead moves towards an
address-only scheme when the reference might store an ObjC reference.
(The current implementation is still trivially takable, but that is
not something we should be relying on.) These will be tested in a
follow-up commit. For now, we still rely on the bad assumption of
reference-countability.
The code goes into its own sub-tree under 'tools' but tests go under 'test',
so that running 'check-swift' will also run all the SourceKit tests.
SourceKit is disabled on non-darwin platforms.
This is a WIP to make CompilerVersion more general.
- Rename CompilerVersion to just "Version"
- Make version comparison general and put _compiler_version special logic
with its second version component in a specialized parsing function
- Add a generic version parsing function
Swift SVN r32726
a ternary tree with a fixed-length per-node inline key buffer.
I plan to use this for metadata path caches, where it's useful to
be able to quickly find the most-derived point along a path that
you've already cached, but it should be useful for other things
in the compiler as well, like function-with-argument-label
lookups and possibly code completion.
This is quite a bit more space-efficient (and somewhat faster)
than doing scans after a lower_bound on a std::map<std::string, T>.
I haven't implemented balancing yet, and I don't need delete at
all for metadata paths, so I don't plan to work on that.
Swift SVN r32453
This configuration clause will suppress lex diagnostics and skip parsing
altogether if the code under the clause isn't active - the compiler must
have a repository version greater than or equal to the version given to
_compiler_version.
This option is only meant to be used sparingly and not to track the
Swift *language* version.
Example, if using a compiler versioned 700.0.28:
#if _compiler_version("700.0.23")
print("This code will compile for versions 700.0.23 and later.")
#else
This + code + will + not + be + parsed
#endif
Included are new diagnostics for checking that the version is formatted
correctly and isn't empty.
New tests:
- Compiler version comparison unit tests
- Build configuration diagnostics
- Skipping parsing of code under inactive clauses
rdar://problem/22730282
Swift SVN r32195
After this commit, swift_retain will return no reference and LLVMARCContract pass is modified NOT to rewrite
swift_retain_noresult to old swift_retain which forwarded the reference.
Swift SVN r32075
I asked that the patches were split up so I could do post commit review.
This reverts commit r32059.
This reverts commit r32058.
This reverts commit r32056.
This reverts commit r32055.
Swift SVN r32060
to remove reference forwarding for some of the ARC entry points. rdar://22724641. After this
commit, swift_retain will be the same as swift_retain_noresult, returning no reference.
LLVMARCContract pass is also modified NOT to rewrite swift_retain_noresult to the
old swift_retain which forwards the reference.
Swift SVN r32055
Following Jordan's advice, replace "join" with "union" and "meet" with
"intersect" in VersionRange to make it clear which direction these operations
go in the lattice of ranges.
Swift SVN r31640
Add a join (least upper bound) operation to the availability version range
lattice. A later commit will use this to reason about the disjunctive
else-branch flow for conditions with multiple conjunctive statement conditions.
This is part of rdar://problem/22307360.
Swift SVN r31610
This way they can be used from other projects, like LLDB. The downside
is we now have to make sure the header is included consistently in all
the places we care about, but I think in practice that won't be a problem,
especially not with tests.
rdar://problem/22240127
Swift SVN r31173
It didn't properly set "withInlineStorage(false)" on the test value witness table, causing it to pick direct-storage value witnesses that overflow a fixed-size buffer and crash on the ASan bot. Fix the test, and add a check for a canary that fails even without ASan.
Swift SVN r30462
If file A extends a common type (say, Dictionary), but only adds new members,
other files using Dictionary don't need to be recompiled if they definitively
don't use those members. That should be working now.
Swift SVN r30286
- (depends|provides)-top-level for top-level names.
- (depends|provides)-nominal for access into nominal types.
- (depends|provides)-dynamic-lookup for @objc members available on AnyObject.
- depends-external for cross-module file-based dependencies.
No functionality change.
Swift SVN r30283
These will be used for reflection, and eventually to speed up generic
operations on single payload enums as well.
Progress on <rdar://problem/21739870>.
Swift SVN r30214
We incorrectly tested the uninitialized "next" pointer against MAP_FAILED, instead of the real result of mmap. Fixes rdar://problem/21659505.
Swift SVN r30030
sequence which can be read with a forward iterator.
This will be useful for storing access paths to metadata or
protocol conformance values, which are typically very short.
Now with a fix to directly include <climits> for CHAR_BIT.
This was being transitively included on Darwin, but that's
not portable.
Swift SVN r29485
sequence which can be read with a forward iterator.
This will be useful for storing access paths to metadata or
protocol conformance values, which are typically very short.
Swift SVN r29458
Equivalent to llvm::sys::fs::rename, except that if the destination file
exists and has the same contents as the source file, the source file is
simply deleted and the destination file is not touched.
Used in next commit.
Swift SVN r28041
