Commit Graph

937 Commits

Author SHA1 Message Date
Chris Lattner
0dfb1ec790 introduce a new "IsDirectIVarAccess" bit to MemberRefExpr. Properties
that have both storage AND accessors are accessed by-default through
their accessors.  This bit indicates that a specific MRE should access
the storage instead.

Use this new bit in the synthesized getter/setter for "StorageObjC"
properties (it will also be used for other things in the future).
This also teaches SILGen about it.

One interesting aspect of this representation is that it makes it trivial
to add some expression syntax for directly accessing a store+computed 
property (e.g. ObjC properties, also someday didSet/willSet properties) 
someday if we care.  This would be analogous to the "self->ivar" syntax
in objc (vs self.ivar).  No, we will not use "->" for this. :-)

NFC since this is the use is still hidden under the -enable-new-objc-properties
staging option.



Swift SVN r12965
2014-01-26 06:08:53 +00:00
Chris Lattner
8fed381d46 the 'self' argument of SuperRefExpr and RebindSelfInConstructorExpr are always VarDecls,
use it instead of ValueDecl since it is more specific.


Swift SVN r12754
2014-01-22 18:25:19 +00:00
Chris Lattner
d2a33362dc Fix getRValueType() to not strip off @inout types, only @lvalue types.
- Introduce a new TypeBase::getInOutObjectType() that strips off @inout types
- Switch stuff that is calling getRValueType() to call getInOutObjectType()
  when they are stripping @inout, not @lvalue (this is primarily around
  stuff working with self)
- Update testcases, some diagnostics improve around & handling.

This fixes rdar://15708430 and rdar://15729093.



Swift SVN r11794
2014-01-01 18:56:44 +00:00
Chris Lattner
eb576ba2cd Now that lvalue types are more squared away, RequalifyExpr is completely
dead.  Remove it.


Swift SVN r11710
2013-12-29 05:06:54 +00:00
Chris Lattner
d3c91387e9 Substantially simplify the API to LValueType now that nonsettable is gone.
Swift SVN r11703
2013-12-28 22:48:44 +00:00
Chris Lattner
ea43a05ff4 now that non-modifiable isn't an lvalue qualifier, the basic invariants of
RequalifyExpr are being maintained properly.  Enable an assertion in the
ctor and take out a "terrible hack" in the verifier.


Swift SVN r11694
2013-12-28 16:04:21 +00:00
Joe Groff
017440165e Fix the weird capitalization of MetaTypeType.
Swift SVN r11475
2013-12-19 18:43:08 +00:00
Chris Lattner
23d740b740 The type checker is building RequalifyExpr's to strip off the @settable bit
in various unfortunate cases, which is really wrong and causing unpleasantness
for the new mutability model.  However, we can't fix this until the new 
mutability model lands.

To get from here to there, add some assertions to RequalifyExpr expr's ctor 
that are only enabled by the new model, to help me track down and purge these 
infractions.



Swift SVN r11445
2013-12-18 22:55:21 +00:00
John McCall
342a8b35db Parse default-argument expressions in an initializer context.
Swift SVN r11178
2013-12-12 03:36:27 +00:00
Doug Gregor
19759529db Allow delayed identifier expressions (.foo) with static variables and methods.
This allows expressions such as ".foo" and ".foo(1)" to refer to
static variables and static methods, respectively, as well as enum
cases. 

To get here, rework the parsing of delayed identifier expressions a
bit, so that the argument itself is part of the delayed argument
expression rather than a separate call expression. This simplifies
both the handling of patterns of this form and the type checker, which
can now user simpler constraints.

If we really want to support (.foo)(1), we can make that work, but it
seems unnecessary and perhaps confusing.


Swift SVN r10626
2013-11-21 06:24:06 +00:00
Joe Groff
19457c12ea Give Builtin.Word an abstract size.
Instead of hardcoding Builtin.Word to be an alias for Builtin.Int64, make it its own type of abstract pointer width.

- Change BuiltinIntegerType's width representation to accommodate abstract widths.

- In the AST and in SIL, store values of the types as the greatest supported size for the abstract width (64 bits for a pointer).

- Add some type safety to the ([sz]ext|trunc)(OrBitCast)? builtins that they're used appropriately given the upper and lower bounds of the abstract sizes they're working with.

- Now that Builtin.Word is a distinct type, give it its own mangling.

- In IRGen, lower pointer-sized BuiltinIntegerType appropriately for the target, and truncate lowered SIL values if necessary.

Fixes <rdar://problem/15367913>.

Swift SVN r10467
2013-11-14 19:56:26 +00:00
Doug Gregor
731fe651e7 Teach OtherConstructorDeclRefExpr to track substitutions.
Eliminates another source of SpecializeExprs.


Swift SVN r9714
2013-10-28 18:35:49 +00:00
Joe Groff
054055973a Sema: Handle negative raw values for enum cases.
The keying and auto-incrementing logic need some patching up to correctly track and build negative IntegerLiteralExprs. Fixes <rdar://problem/15315340>.

Swift SVN r9676
2013-10-25 18:50:55 +00:00
Doug Gregor
8ea71f06a7 Teach ExistentialMemberRefExpr to handle all levels of substitutions.
Another SpecializeExpr usage bites the dust.


Swift SVN r9665
2013-10-25 00:02:36 +00:00
Doug Gregor
10164fa56c Teach ArchetypeMemberRefExpr to handle all levels of substitutions.
Eliminates another source of SpecializeExprs.


Swift SVN r9655
2013-10-24 21:44:45 +00:00
Doug Gregor
5269d99d0c Store substitutions within a DeclRefExpr.
Replace DeclRefExpr's stored ValueDecl* with a ConcreteDeclRef,
allowing it to store the complete set of substitutions applied to
the declaration. Start storing those substitutions (without using them
yet).


Swift SVN r9535
2013-10-21 14:36:23 +00:00
Doug Gregor
7d3472e9ec Separately convert each element in an array literal to the array element type.
Allows us to properly infer the type (Int, Int)[] from the array
literal [(1, 2)]. This is the last piece of functionality in
<rdar://problem/11293232>.


Swift SVN r9408
2013-10-16 14:32:49 +00:00
Dmitri Hrybenko
011284e9c9 Make minus sign part of IntegerLiteralExpr and make integers literals 136-bits
wide

Currently integer literals are 64-bit.  In order to allow checking for overflow
while converting an integer literal to swift.UInt/Int* types we need at least
65 bits.  But floating point numbers (Float32, Float64, Float80) are
BuiltinIntegerLiteralConvertible.  In order to allow spelling large floating
point constants, we allow 136-bit literals.

Rationale: 128 bits are enough to represent the absolute value of min/max IEEE
Binary32, and we need 1 bit to represent the sign.  136 is 129 rounded to the
next 8 bits.

The plan is to have builtins that do the overflow check and convert 136-bit
numbers to the required width.  We need these builtins for both integers and
floating point numbers to ensure that 136-bit numbers are folded into sane
constants in SIL and don’t escape to LLVM IR.


Swift SVN r9253
2013-10-12 04:52:11 +00:00
Doug Gregor
fba128e191 Axle: Implement Vec<T, N> syntactic sugar for the VecTxN structs.
Implements the first part of <rdar://problem/15100137>.


Swift SVN r9092
2013-10-09 21:12:19 +00:00
Argyrios Kyrtzidis
781dcf7b11 [AST] Store the TypeReprs of generic arguments used to specialize a decl reference in DeclRefExpr, to impove source fidelity.
Fixes rdar://15034958

Swift SVN r8880
2013-10-03 17:55:55 +00:00
Joe Groff
911929f1dd Parse and type check initializer closures after 'new T[n]' exprs.
Require that either T be default constructible or that the user provide a closure that maps indices to initial values. We don't actually call the closure yet to initialize the array; that's blocked on function abstraction difference <rdar://problem/13251236>.

Swift SVN r8801
2013-10-01 05:12:54 +00:00
Argyrios Kyrtzidis
e224667315 Refactor Implicit'ness of expressions.
Introduce a bit in Expr to indicate whether the expression is implicit and decouple the implicitness
of an expression from whether it has a source location or not.

This allows implicit expressions to be able to point at the source location where they originated from.
It also allows decoupling the implicitness of a parent from its children, so for example, an implicit CallExpr
can have an explicit parameter value.

Swift SVN r8600
2013-09-24 20:42:29 +00:00
Joe Groff
c4b4db732f Parse and check raw values on enum cases.
Iff an enum declares a raw type, its cases may declare raw values or else have them assigned to them implicitly by autoincrementing from zero, like in C. If the raw type is float-, string-, or char-literal-convertible, there is no autoincrement, and the raw values must all be explicit. The raw type is rejected if any cases have payloads.

We don't yet diagnose duplicate raw values. That'll come next. We also don't yet serialize or deserialize the raw values. We don't strictly need to do this, since the RawRepresentable protocol conformance will be exported from the module as API, but Jordan pointed out that, for fragile raw values, this would be good for documents/jump-to-definition purposes, so we have a plan for only serializing the literals without having to deal with fully general expression serialization.

Swift SVN r8545
2013-09-21 04:31:26 +00:00
Doug Gregor
8f3184ea9d Implicitly-defined default constructors for classes.
When a class definition contains no constructors, and all of the
instance variables are either default initializable or have initial
values in the class, and the superclass (if any) has a constructor
callable with the argument (), implicitly define a default
constructor.

Fixes <rdar://problem/14828518>.


Swift SVN r8487
2013-09-20 14:11:22 +00:00
Dmitri Hrybenko
f1f189f4e0 Rename PipeClosureExpr -> ClosureExpr
Swift SVN r8321
2013-09-17 01:37:36 +00:00
Dmitri Hrybenko
d26cc5bd2e Tighten verifier check and cast in AbstractClosureExpr::getResultType()
Closure can only have a FunctionType (not a PolymorphicFunctionType).


Swift SVN r8311
2013-09-17 00:04:09 +00:00
Dmitri Hrybenko
34a703a173 Move PipeClosureExpr::getResultType to AbstractClosureExpr
Swift SVN r8308
2013-09-16 23:45:45 +00:00
Dmitri Hrybenko
b18c38a322 Rename ImplicitClosureExpr -> AutoClosureExpr
Swift SVN r8304
2013-09-16 23:03:50 +00:00
Dmitri Hrybenko
f8bd657b2f ImplicitClosureExpr (AutoClosureExpr in future): store body as BraceStmt
This allows us to add AnyFunctionRef::getBody(), which returns the body
as a BraceStmt for every function-like AST node.


Swift SVN r8293
2013-09-16 20:52:12 +00:00
Dmitri Hrybenko
536ed954ad Remove FuncExpr. Add CaptureInfo to FuncDecl. Introduce AnyFunctionRef.
AnyFunctionRef is a universal function reference that can wrap all AST nodes
that represent functions and exposes a common interface to them.  Use it in two
places in SIL where CapturingExpr was used previously.

AnyFunctionRef allows further simplifications in other places, but these will
be done separately.


Swift SVN r8239
2013-09-14 02:15:48 +00:00
Dmitri Hrybenko
5ac875e5dc Add CaptureInfo class that manages capture lists
Swift SVN r8234
2013-09-14 00:22:44 +00:00
Dmitri Hrybenko
fb227e6da6 Remove CapturingExpr::getParamPatterns()
Swift SVN r8218
2013-09-13 22:19:20 +00:00
Dmitri Hrybenko
c69c79084a Move result typeloc and body result type from FuncExpr to FuncDecl
Swift SVN r8153
2013-09-12 18:40:57 +00:00
Dmitri Hrybenko
796eac4b3f Make SILLocation::dump() more informative
Swift SVN r8130
2013-09-12 00:25:32 +00:00
Dmitri Hrybenko
3cc01cf7d6 Introduce AbstractFunctionDecl -- a base class for ConstructorDecl,
DestructorDecl, FuncDecl -- and move some of the common concepts and logic
into it

No functionality change.


Swift SVN r8090
2013-09-11 04:04:01 +00:00
Dmitri Hrybenko
e6bfc39e04 FuncExpr: use the function name as the primary source location
(used to be the 'func' keyword)


Swift SVN r8088
2013-09-11 03:09:21 +00:00
Chris Lattner
e48b3a4702 Rework how capture lists work in CaptureExpr: now we record
global variables used by functions in the capture list as well.

SILGen and other things that don't care about these (i.e., all 
current current clients) filter the list to get what they want.

This is needed for future definite init improvements, and unblocked
by Doug's patch in r8039 (thanks! :)

No functionality change.



Swift SVN r8045
2013-09-09 18:15:07 +00:00
Doug Gregor
0554c944a2 Fold GenericSubscriptExpr into SubscriptExpr.
Swift SVN r7845
2013-09-03 16:25:07 +00:00
Doug Gregor
786f9d299b Fold GenericMemberRefExpr into MemberRefExpr.
MemberRefExpr now uses ConcreteDeclRef to refer to its member, which
includes the substitutions and obviates the need for
GenericMemberRefExpr.


Swift SVN r7842
2013-09-03 15:49:19 +00:00
Dmitri Hrybenko
d9035426ed Rename RebindThisInConstructorExpr -> RebindSelfInConstructorExpr
Swift SVN r7658
2013-08-28 03:02:30 +00:00
Dmitri Hrybenko
69cfa73640 More 'this' -> 'self' replacements
Swift SVN r7657
2013-08-28 02:57:21 +00:00
Ted Kremenek
8f5b8ccb02 Rename "This" to "Self" and "this" to "self".
This was not likely an error-free change.  Where you see problems
please correct them.  This went through a fairly tedious audit
before committing, but comments might have been changed incorrectly,
not changed at all, etc.

Swift SVN r7631
2013-08-27 21:58:27 +00:00
Dmitri Hrybenko
9b8dcb9a79 FuncExpr::create: add an assertion that we always have at least one parameter
Swift SVN r7368
2013-08-20 20:59:31 +00:00
Argyrios Kyrtzidis
9d157e7dca [Parser] Record the end location of a function body when we skip it.
Swift SVN r6594
2013-07-25 14:42:08 +00:00
Argyrios Kyrtzidis
66d1e516c8 Refactor how multiple parsing passes and delayed parsing works.
-Introduce PersistentParserState to represent state persistent among multiple parsing passes.
  The advantage is that PersistentParserState is independent of a particular Parser or Lexer object.
-Use PersistentParserState to keep information about delayed function body parsing and eliminate parser-specific
  state from the AST (ParserTokenRange).
-Introduce DelayedParsingCallbacks to abstract out of the parser the logic about which functions should be delayed
  or skipped.

Many thanks to Dmitri for his valuable feedback!

Swift SVN r6580
2013-07-25 01:40:16 +00:00
Dmitri Hrybenko
c0096e9584 ASTDumper: don't crash when printing an integer literal that has ErrorType
Swift SVN r6569
2013-07-24 23:11:23 +00:00
Doug Gregor
6804b23564 Teach scalar-to-tuple conversions to use the resilient entry points for default arguments.
There is a bunch of copy-and-paste here from the tuple-shuffle
code. The expected trajectory is that ScalarToTupleExpr will grow into
a general TupleConversionExpr, obviating the need for TupleShuffleExpr
entirely and eliminating the redundancy.



Swift SVN r6347
2013-07-18 17:23:33 +00:00
Dmitri Hrybenko
f428683842 Remove unused 'Body' parameter in FuncExpr::create()
'nullptr' is only ever passed as the argument value.


Swift SVN r5966
2013-07-02 23:12:15 +00:00
Dmitri Hrybenko
1668a11d51 Pack bitfields in Expr. Pack FuncExpr::{Body, BodyTokenRange} in a union.
Swift SVN r5954
2013-07-01 23:05:20 +00:00
Joe Groff
b5d6103bfc AST: Add an UnresolvedPatternExpr to parse patterns in expr position.
Because of '~=' lookahead and precedence parsing, we need to be able to parse pattern productions in expression position and validate them after name binding. Add an unresolved Expr node that can hold a subpattern for this purpose.

Swift SVN r5825
2013-06-27 00:01:14 +00:00