This patch extends the syntax with a new #line directive that is inspired
by the homonymous CPP directive. It can be specified in all locations a #if
is legal (Stmt, Decl).
Semantics
---------
#line 42 "file.swift"
This makes diagnostics and debug information behave as if the subsequent
lines came from file.swift+42.
#line // without arguments
This switches back to the main source file and the switches back to the
normal line numbering. Any previous #line directives will result in gaps
in the main file.
Rationale
---------
LLDB and the REPL need this for making expressions that are entered into
the expression evaluator or REPL debugable. For more info see
<rdar://problem/17441710> Need #line directive or something similar so we can enhance the debugging of expressions and REPL
Also, I believe the stdlib would benefit from this and it would allow us
to get rid of the line-directive wrapper script.
Swift SVN r19384
The @semantics attribute allows the stdlib to mark some functions as
having a specific semantics. The optimizer can use this information
to optimize the code.
Swift SVN r19328
We were working around this in several different places, which was
error-prone (see <rdar://problem/17479771>). This way, we always have
usable left/right delimiter locations.
Swift SVN r19292
This does no validation of the access control modifiers.
As part of this commit, note that "virtual" attributes may actually be
written in the source under another spelling. Update a few other parts of
the source to account for that.
Swift SVN r19140
...in preparation for non-source locations, i.e. locations that don't come
frome source buffers.
No functionality change, but a fair bit of SourceManager API and idioms have
changed.
Swift SVN r18942
Don't use spare bits on platforms that use ObjC tagged pointers when an enum payload involves a class-constrained existential, archetype, or ObjC-defined class type. If a payload is of a Swift-defined class type, we can still assume it's a real pointer and use its spare bits. Add an @unsafe_no_objc_tagged_pointer attribute that can be applied to protocols to denote that existentials bounded by that protocol can use spare bits; this is necessary to preserve the layout of bridged Array and Dictionary types, which should not be bound to tagged pointer types in practice (fingers crossed). Fixes <rdar://problem/16270219>.
Swift SVN r18781
Introduce the UIApplicationMain attribute, and check that it's only applied to nongeneric classes that conform to UIApplicationDelegate.
Swift SVN r18048
local contexts. Get the parser in consultation with the DebuggerClient
to handle moving persistent declarations from the debugger function to the
source file.
<rdar://problem/15302321> [ER] Define Swift classes in expressions
Swift SVN r17948
This hardcodes the list of platforms into unique identifiers, which
has tradeoffs to using strings. The reality is that various
logic in the compiler needs to be present to identify a given
platform, so hardcoding this list for now is ok. We can evaluate
in the future.
This change is motivated by some needed cleanup, supporting
App Extensions @availability, and unifying build configurations
with the platform names for @availability.
As part of this change, it introduces some slightly better
parser recovery for bad @availability attributes.
Moreover, the 'macosx' platform is renamed to 'osx'. We will need
to handle this mapping in the Clang Importer, but this is the
right thing to do.
Swift SVN r17767
- Mine conjunction constraints for constraint failure data. (rdar://problem/16833763)
- Rather than crash, add a diagnostic to signify a missing user constraint. (rdar://problem/16747055) I don't have a deterministic repro for this to include as a test, but users hit it from time to time, I'd like to address this issue holistically, and we're hoping that the new diagnostic will help us collect isolated repros.
- As promised, remove the temporary "compiler_submit_version" build configuration predicate in time for WWDC. (rdar://problem/16380797)
Swift SVN r17705
We were accidentally forcing all members of a class to be instantiated in two places:
- by trying to look up an existing destructor decl in the class, and
- by adding the implicit destructor to the class, because addMember needlessly called loadAllMembers.
Fix the former problem by adding a 'has destructor' bit to ClassDecl so we can track whether the implicit destructor needs to be added without querying its members. Fix the latter by making IterableDeclContext::addMember not call loadAllMembers, and making loadAllMembers not barf when it sees existing members in the context.
Together with Jordan and JoeP's changes, this makes many interpreter tests now compile 3-20x faster.
Swift SVN r17562
Subscript declarations were still encoding the names of index
variables in the subscript type, which unintentionally made them
keyword arguments. Bring subscript declarations into the modern day,
using compound names to encode the subscript argument names, which
provides consistency for the keyword-argument world
<rdar://problem/14462349>. Note that arguments in subscripts default
to not being keyword arguments, which seems like the right default.
We now get keyword arguments for subscripts, so one can overload
subscripts on the names of the indices, and distinguish at the call
site. Under -strict-keyword-arguments, we require strictness here as well.
The IRGen/IDE/SILGen test updates are because the mangling of common
subscripts changed from accidentally having keyword arguments to not
having keyword arguments.
Swift SVN r17393
used on init decls, with the same semantics as "-> Self". Switch the ast
printer, and fixits to use it.
As driveby's, simplify verification of contextual keywords in declparsing,
and rename parseConstructor/Destructor to parseInit/Deinit.
Swift SVN r17356
pointing people to use the context sensitive keywords instead.
This completes:
<rdar://problem/16782966> make weak and unowned be context sensitive keywords
Swift SVN r17300
This is part of <rdar://problem/16782966> make weak and unowned be context sensitive keywords
The part still missing is where we ban the attribute with a fixit to use the
non-attribute syntax.
Swift SVN r17235
Introduce a model where an argument name is a keyword argument if:
- It is an argument to an initializer, or
- It is an argument to a method after the first argument, or
- It is preceded by a back-tick (`), or
- Both a keyword argument name and an internal parameter name are
specified.
Provide diagnostics Fix-Its to clean up cases where the user is
probably confused, i.e.,
- "_ x: Int" -> "x: Int" where "x" would not have been a keyword
argument anyway
- "x x: Int" -> "`x: Int"
This covers the compiler side of <rdar://problem/16741975> and
<rdar://problem/16742001>.
Update the AST printer to print in this form, never printing just
a type for a parameter name because we're also going to adopt
<rdar://problem/16737312> and it was easier to move the tests once
rather than twice.
Standard library and test updates coming separately.
Swift SVN r17056
This restructures IfConfigDecl/Stmt to be a list of clauses controlled
by a condition. This makes it straight-forward to drop in #elseif support.
While I'm in here, this patch moves checking for extraneous stuff at the
end of the #if line from the lexer to the parser. This means that you can
now put a comment on the same line as a #if/#else/#elseif/#endif.
Swift SVN r16912
- Change the parser to unconditionally reject @mutating and @!mutating with a fixit and
specific diagnostic to rewrite them into the [non]mutating keyword.
- Update tests.
This resolves <rdar://problem/16735619> introduce nonmutating CS keyword and remove the attribute form of mutating all together
Swift SVN r16892
This was part of the original weak design that
there was never any particular reason to rush the
implementation for. It's convenient to do this now
so that we can use it to implement Unmanaged<T> for
importing CF types.
Swift SVN r16693
This will represent the return convention of imported __attribute__((objc_returns_inner_pointer)) methods. Leave it unimplemented for now until we can autorelease things sanely.
Swift SVN r16628
The use of ASTContext-allocated arrays to store the members of nominal
type declarations and the extensions thereof is an
abomination. Instead, introduce the notion of an "iterable"
declaration context, which keeps track of the declarations within that
context (stored as a singly-linked list) and allows iteration over
them. When a member is added, it will also make sure that the member
goes into the lookup table for its context immediately.
This eliminates a ton of wasted memory when we have to reallocate the
members arrays for types and extensions, and moves us toward a much
more sane model. The only functionality change here is that the Clang
importer no longer puts subscript declarations into the wrong class,
nor does it nested a C struct within another C struct.
Swift SVN r16572
Introduce CtorInitializerKind to describe the kind of an enum, rather
than a bool, to make way for more initializer kinds in the future.
Swift SVN r16525
