This reverts commit r22829, because reverting r22828 depends on it.
Reverting r22828 because it
was apparently causing an assertion on the bot:
Swift SVN r22830
240 undocumented public non-operator APIs remain in core
Note: previous estimates were wrong because my regex was broken. The
previous commit, for example, had 260 undocumented APIs.
Swift SVN r22234
To limit user confusion when using conditional expressions of type Bool?, we've decided to remove the BooleanType (aka "LogicValue") conformance from optional types. (If users would like to use an expression of type Bool? as a conditional, they'll need to check against nil.)
Note: This change effectively regresses the "case is" pattern over types, since it currently demands a BooleanType conformance. I've filed rdar://problem/17791533 to track reinstating it if necessary.
Swift SVN r20637
Similar to nil-coalescing operators in other languages, this operator takes an optional on the left and a non-optional expression on the right, and if the optional is nil, evaluates the right side, otherwise returning the value from the optional itself. <rdar://problem/15247356>
Swift SVN r20593
To facilitate the removal of the BooleanType conformance from Optional<T>, we'll first need to support
equality comparisons between the 'nil' literal and optionals with non-equatable element types.
We can accomplish this via three changes:
- New overloads for "==" and "!=" that we can resolve against non-equatable optionals
- A tweak to our overload resolution algorithm that, when all other aspects of two overloads are
considered equal, would favor the overload with a more "constrained" type parameter. This allows
us to avoid ambiguities between generic overloads that are distinct, but whose parameters do not
share a pairwise subtype relationship.
- A gross hack to favor overloads that do not require bindings to 'nil' when presented with an
otherwise ambiguous set of solutions. (Essentially, in the face of a potential ambiguity, favor solutions
that do not require bindings to _OptionalNilComparisonType over those that do.)
The third change is only necessary because we currently lack the ability to specify "negative" or
otherwise more expressive constraints, so we'll want to rethink the hack post-1.0. (I've filed
rdar://problem/17769974 to cover its removal.)
Swift SVN r20346
Add a set of _preconditionOptionalHasValue intrinsics that merely test that an optional has a case. Emit an lvalue ForceValueExpr as a physical lvalue, first asserting the precondition then projecting out the Some payload.
Swift SVN r20188
eliminating the @'s from them when used on func's. This is progress towards
<rdar://problem/17527000> change operator declarations from "operator prefix" to "prefix operator" & make operator a keyword
This also consolidates rejection of custom operator definitions into one
place and makes it consistent, and adds postfix "?" to the list of rejected
operators.
This also changes the demangler to demangle weak/inout/postfix and related things
without the @.
Swift SVN r19929
Mechanically add "Type" to the end of any protocol names that don't end
in "Type," "ible," or "able." Also, drop "Type" from the end of any
associated type names, except for those of the *LiteralConvertible
protocols.
There are obvious improvements to make in some of these names, which can
be handled with separate commits.
Fixes <rdar://problem/17165920> Protocols `Integer` etc should get
uglier names.
Swift SVN r19883
Keep calm: remember that the standard library has many more public exports
than the average target, and that this contains ALL of them at once.
I also deliberately tried to tag nearly every top-level decl, even if that
was just to explicitly mark things @internal, to make sure I didn't miss
something.
This does export more than we might want to, mostly for protocol conformance
reasons, along with our simple-but-limiting typealias rule. I tried to also
mark things private where possible, but it's really going to be up to the
standard library owners to get this right. This is also only validated
against top-level access control; I haven't fully tested against member-level
access control yet, and none of our semantic restrictions are in place.
Along the way I also noticed bits of stdlib cruft; to keep this patch
understandable, I didn't change any of them.
Swift SVN r19145
We enable pattern matching against nil even if the T of an option type isn't comparable by implementing
a crazy new ~= operator. This approach would work to enable comparisons against nil as well, but I can't
make it happen without introducing ambiguities.
Swift SVN r18919
This is all goodness, and eliminates a major source of implicit conversions.
One thing this regresses on though, is that we now reject "x == nil" where
x is an option type and the element of the optional is not Equtatable. If
this is important, there are ways to enable this, but directly testing it as
a logic value is more straight-forward.
This does not include support for pattern matching against nil, that will be
a follow on patch.
Swift SVN r18918
- rdar://problem/16776273, wherein conversions between nil and .None were permitted
due to an implicit conversion between nil and COpaquePointer.
- rdar://problem/16877526, where we needed to add new equality overloads to handle
conversions between nil and .None given the supression of user conversions.
(Some minor tweaks this time around for better interoperability with AnyObject.)
Swift SVN r18498
- rdar://problem/16776273, wherein conversions between nil and .None were permitted
due to an implicit conversion between nil and COpaquePointer.
- rdar://problem/16877526, where we needed to add new equality overloads to handle
conversions between nil and .None given the supression of user conversions.
(Thanks to Ted for the overloads and test.)
Swift SVN r18473
assert() and fatalError()
These functions are meant to be used in user code. They are enabled in debug
mode and disabled in release or fast mode.
_precondition() and _preconditionFailure()
These functions are meant to be used in library code to check preconditions at
the api boundry. They are enabled in debug mode (with a verbose message) and
release mode (trap). In fast mode they are disabled.
_debugPrecondition() and _debugPreconditionFailure()
These functions are meant to be used in library code to check preconditions that
are not neccesarily comprehensive for safety (UnsafePointer can be null or an
invalid pointer but we can't check both). They are enabled only in debug mode.
_sanityCheck() and _fatalError()
These are meant to be used for internal consistency checks. They are only
enabled when the library is build with -DSWIFT_STDLIB_INTERNAL_CHECKS=ON.
I modified the code in the standard library to the best of my judgement.
rdar://16477198
Swift SVN r18212
The old ones were:
- print/println
- printAny
- printf
- Console
The new printing story is just print/println. Every object can be printed.
You can customize the way it is printed by adopting Printable protocol. Full
details in comments inside stdlib/core/OutputStream.swift.
Printing is not completely finished yet. We still have ReplPrintable, which
should be removed, string interpolation still uses String constructors, and
printing objects that don't conform to Printable will result in printing
mangled names.
Swift SVN r18001
