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28382 Commits

Author SHA1 Message Date
Chris Lattner
4814530f79 rework validateType to be more conventional: not updating types in place. 
Swift SVN r516
 2011-08-12 05:54:44 +00:00
John McCall
9f2ca5e4cc Remove juxtaposition handling from the type-checker and put it 
in the parser.  Implement the grammar which permits this.
Enforce that binary operators have to, well, operators.



Swift SVN r515
 2011-08-12 05:49:30 +00:00
Chris Lattner
1dc200c973 introduce an official ErrorType. This is to be used when a type is incorrectly 
constructed.  When put on a decl, this should cause all uses of the decl to 
collapse away into badness during type checking.


Swift SVN r514
 2011-08-12 05:42:20 +00:00
Chris Lattner
10f5c2fc66 remove the UnresolvedType, representing it with a null Type() instead. There is no need to 
have two different ways to represent the same thing.  This has the pleasant bonus that stuff
crashes when you do things with unresolved types.


Swift SVN r513
 2011-08-12 05:19:52 +00:00
Chris Lattner
452308129e fix a case where Sema installed a non-null type. This isn't needed, we like null types 
coming out of the parser.


Swift SVN r512
 2011-08-12 04:57:50 +00:00
Chris Lattner
9e6817b3cd implement lexer, parser, and dox support for while loops, everything is hooked up now. 
Swift SVN r502
 2011-08-11 20:47:33 +00:00
Chris Lattner
ce6f6a83cd add AST support for WhileStmt. This isn't important, but is easy to add. 
Swift SVN r501
 2011-08-11 20:33:34 +00:00
Chris Lattner
433d6de807 implement AST and parser support for 'return'. We're still not doing a conversion 
to a return type yet though.  We happily diagnose thigns like this as an error:

func foo() -> int {
  return 4 5
}



Swift SVN r493
 2011-08-03 23:19:24 +00:00
Chris Lattner
ba773ca617 make unbound sequences of expressions that are not in a BraceStmt be an error. 
This makes (0 1) an error, since 0 is dead.



Swift SVN r489
 2011-08-03 22:18:14 +00:00
Chris Lattner
6e872fe562 when type checking of a sequence expr has completed, if that sequence expr is in 
a bracestmt context, inline the sequence into the brace.  No particular
behavior change other than an adapted AST.


Swift SVN r488
 2011-08-03 21:58:32 +00:00
Chris Lattner
c86e786ab5 switch langref to new func syntax, switch implementation to use FuncExpr instead of LambdaExpr. 
Swift SVN r487
 2011-08-03 00:32:15 +00:00
Chris Lattner
0265e3cbd1 make 'else if' a special case, disallowing things like "else ;". 
Swift SVN r482
 2011-08-02 21:31:31 +00:00
Chris Lattner
350b89e6e4 Represent assignments as their own AssignStmt, preserving the model we had 
before, but removing the hack where we'd represent them as a binary operator
with a null operator function.  We still have no clear semantics for what 
is valid or not.



Swift SVN r478
 2011-08-01 17:45:21 +00:00
Chris Lattner
ebc33d306f add AST support for semicolon statements and clean up the parser. While noone cares, it is trivial 
to support and good for completeness.


Swift SVN r475
 2011-07-31 21:09:23 +00:00
Chris Lattner
fb8621f53a introduce DeclVisitor, ExprVisitor, and StmtVisitor template typedefs. 
Swift SVN r472
 2011-07-31 20:46:12 +00:00
Chris Lattner
d5523fa257 rename ExprStmtVisitor to ASTVisitor. 
Swift SVN r471
 2011-07-31 20:41:11 +00:00
Chris Lattner
93ac2b3cb9 rename FuncExpr to LambdaExpr. 
Swift SVN r468
 2011-07-31 20:15:56 +00:00
Chris Lattner
a8e2788184 implement semantic analysis for FuncExpr and have the parser lower func decls 
to func exprs.  All the tests pass again.  Now we have a strict equality 
between:

  func foo(a : int) -> int { a+1 }

and 

  var foo = func(a : int) -> int { a+1 }

except we don't support the later syntax yet.  We also really need return, though
we're getting closer to being able to usefully support it.



Swift SVN r466
 2011-07-31 19:33:27 +00:00
Chris Lattner
d232974df1 introduce a new FuncExpr AST node. No clients yet though. 
Swift SVN r465
 2011-07-31 18:10:24 +00:00
Chris Lattner
f7c873507b rename ExprVisitor to ExprStmtVisitor, since it can visit either kind. 
Swift SVN r464
 2011-07-31 17:46:16 +00:00
Chris Lattner
8148b8cd1d fix the expr side of the visitor to follow the naming convention. 
Swift SVN r463
 2011-07-31 17:43:47 +00:00
Chris Lattner
63ce0be641 make the big switch: {} are now statements, not expressions. This removes some 
annoying things from the grammar (like expr-non-brace), and makes it so that 
the body/else of an if is just a statement.

This patch has a fairly serious caveat that we just drop function bodies on the
floor now, since we have no "stmtexpr" sort of thing to represent the syntactic
sugar that is func.  We'll fix that soon.


Swift SVN r462
 2011-07-31 17:39:13 +00:00
Chris Lattner
72260c7cad add name binding support for statements at top-level. 
Swift SVN r461
 2011-07-31 17:36:26 +00:00
Chris Lattner
30b878c5d6 add support for walking statements properly, dissolving some hacks. 
Swift SVN r459
 2011-07-31 07:40:13 +00:00
Chris Lattner
382f33ec74 introduce statements, make if (and ;) a statement. This includes a 
few horrible hacks, but is the right direction to go.


Swift SVN r457
 2011-07-31 06:52:11 +00:00
Chris Lattner
0fc77abf5c Per discussion on swift-dev, unify 'meth' and 'func' syntax into just 'func' syntax 
where you can optionally declare a receiver type.  This is cleaner both conceptually
and in implementation, and eliminates drug references. :)


Swift SVN r444
 2011-07-24 20:11:35 +00:00
Chris Lattner
3a059605e7 convert TypeKind and WalkOrder to scoped enums 
Swift SVN r441
 2011-07-24 19:24:55 +00:00
Chris Lattner
e122365134 switch ExprKind to be a scoped enum. This required renaming 
IntegerLiteral to IntegerLiteralExpr, which is good for consistency anyway.


Swift SVN r440
 2011-07-24 18:49:23 +00:00
Chris Lattner
123c200953 switch more stuff to use enum class, C++'0x needs a :foo operator :) 
Swift SVN r438
 2011-07-24 18:28:52 +00:00
Chris Lattner
259fab4238 adopt a few more '0x features. 
Swift SVN r437
 2011-07-24 00:45:51 +00:00
Chris Lattner
096a3e16bc switch to range-based for loops where possible. I'm actually surprised how many 
places are blocked by needing an index exposed for other purposes.  Not having a
MutableArrayRef doesn't help either.


Swift SVN r434
 2011-07-23 20:47:13 +00:00
Chris Lattner
4f29cc0e8c convert TheUnresolvedType/TheDependentType and the empty tuple type 
to be accessors on their respective classes, for consistency.


Swift SVN r429
 2011-07-19 06:41:42 +00:00
Chris Lattner
c9ec409046 Context.getNewOneOfType -> OneOfType::getNew 
Swift SVN r428
 2011-07-19 06:28:36 +00:00
Chris Lattner
a39857ab85 migrate ASTContext::getTupleType -> TupleType::get 
Swift SVN r427
 2011-07-19 06:26:55 +00:00
Chris Lattner
649a577059 move from ASTContext::getArrayType -> ArrayType::get 
Swift SVN r426
 2011-07-19 06:22:04 +00:00
Chris Lattner
e106d336cb while I'm in a cleanup mood, move the factory functions from 
types off of ASTContext onto the types themselves.  This 
never made sense for clang, and makes the same amount of sense
for swift.  Start with function types.


Swift SVN r425
 2011-07-19 06:17:26 +00:00
Chris Lattner
3af81cccbe raw_ostream and NullablePtr. While there are more types that 
could be handled in similar ways, this gets the most of them.


Swift SVN r424
 2011-07-19 06:09:31 +00:00
Chris Lattner
10017bef15 ArrayRef and SmallVector[Impl] 
Swift SVN r423
 2011-07-19 06:03:26 +00:00
Chris Lattner
7275ca527a pull in StringRef and Twine. 
Swift SVN r422
 2011-07-19 06:00:20 +00:00
Chris Lattner
19dbcaa171 pull the casting operators into LLVM.h 
Swift SVN r421
 2011-07-19 05:57:01 +00:00
Chris Lattner
e647b29339 stop the llvm-namespace-qualification-insanity by caving in and 
adding a new swift/AST/LLVM.h file which forward declares and imports
common llvm classes, starting with SMLoc.


Swift SVN r420
 2011-07-19 05:49:43 +00:00
Chris Lattner
d6cf48a22d add a "using llvm::SMLoc" to simplify some code, 
move "-> ()" inference into Sema.  The boundary
between Parser and Sema* is nebulous at best.


Swift SVN r419
 2011-07-19 05:39:06 +00:00
Chris Lattner
434f369023 fix a bunch of failing testcases. I didn't notice this because 
lit is not interacting with cmake properly.


Swift SVN r418
 2011-07-19 05:38:22 +00:00
Chris Lattner
79b312cfe3 reduce duplication in type checking. Vars/func/method's are all 
conceptually the same, vardecl just requires checking the name 
specifier.


Swift SVN r417
 2011-07-19 05:29:37 +00:00
Chris Lattner
9e8c82435a implement AST and sema support for methods. The example method in the 
testcase now AST's to:

   (methdecl 'print2' type='(this : rect) -> (os : ostream) -> ()'
      (closure_expr type='(this : rect) -> (os : ostream) -> ()'
        (closure_expr type='(os : ostream) -> ()'
          (brace_expr type='()'
            (apply_expr type='int'
              (declref_expr type='(r : rect) -> int' decl=area)
              (tuple_expr type='(r : rect)'
                (declref_expr type='rect' decl=this)))))))

which seems right.  Some cleanups are pending.



Swift SVN r416
 2011-07-19 05:26:51 +00:00
Chris Lattner
96103cab95 use the new llvm::TinyPtrVector class, which was derived from this code. 
Swift SVN r408
 2011-07-18 02:13:37 +00:00
Doug Gregor
50323196b3 Teach module lookup to look first in the directory where the importing 
module is located, and then fall back to the current directory if
nothing was found there. This allows us to run the Swift regression
tests from a directory other than "test" (e.g., in the build
directory, as is currently needed by CMake).

The implementation itself is a temporary hack that will eventually
need to be replaced with a proper virtual file system + module
manager.


Swift SVN r405
 2011-07-14 19:16:45 +00:00
Doug Gregor
86ab76d624 Introduce a CMake build system for Swift. 
This CMake-based build system is based on the one in Clang, simplified
and tweaked slightly to better support building a smaller Xcode
project that links against an existing LLVM (rather than importing all
of LLVM into this project).



Swift SVN r403
 2011-07-14 17:58:33 +00:00
Chris Lattner
f72055598a improve diagnostic from: 
error: invalid conversion from type 'int' to '__builtin_int1_type'

to:

error: expression of type 'int' is not legal in a condition



Swift SVN r398
 2011-06-05 04:09:56 +00:00
Chris Lattner
464d255a2d Implement AST building and type checking for if expressions, these now work per-documentation, though the diagnostics are awful. 
Swift SVN r397
 2011-06-05 04:02:24 +00:00