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624 Commits

Author SHA1 Message Date
Chris Lattner
db0cd646fc lexer/parser/ast/sema support for do/while statements. irgen next. 
Swift SVN r2186
 2012-06-17 02:29:54 +00:00
John McCall
8c46c69efa Lexically distinguish prefix, postfix, and binary operators 
and use this information as cues in the language.  Right now,
we do not accept things like "-- *i" because the prefix
operator is not correctly right-bound;  instead you have to
write "--(*i)".  I'm okay with that;  I did add a specialized
diagnostic recognizing operator-binary in a place where we're
expecting a potential operator-prefix.

Swift SVN r2161
 2012-06-07 01:00:06 +00:00
Eli Friedman
75907029f1 Add parsing and semantic analysis for a basic ConstructorDecl. Still missing: no IRGen, and semantic analysis to actually call them. 
Swift SVN r2159
 2012-06-05 23:51:19 +00:00
Eli Friedman
27f8a5ab62 Teach the parser's handling of scopes to handle local types correctly. 
Swift SVN r2138
 2012-06-04 19:14:58 +00:00
Eli Friedman
c404598fcb Parsing and semantic analysis for 'break' and 'continue'. 
Swift SVN r2087
 2012-05-31 00:55:33 +00:00
Eli Friedman
a5a39860cd Basic parsing plus a bit more of the AST for ClassDecls. 
Swift SVN r1860
 2012-05-15 22:07:31 +00:00
Chris Lattner
46c94377f1 Add support for var decls in the initializer of a c-style for loop, 
implementing rdar://11360347 / 11349750.  C-style for loops could be
further enhanced by allowing a comma-separated list of statements in
the increment, but this isn't something I plan to do in the short term.


Swift SVN r1713
 2012-05-02 05:44:58 +00:00
Chris Lattner
8c478d1cb7 remove the foreach keyword, switching foreach loops to use 'for' instead. 
This uses one-token lookahead to distinguish between the two forms.


Swift SVN r1710
 2012-05-02 01:06:06 +00:00
Chris Lattner
e205e1d2da change the subset of for statements we support: instead of *requiring* parens, 
now we *do not allow* them.  This is progress towards unifying for and foreach.


Swift SVN r1709
 2012-05-02 00:43:24 +00:00
Chris Lattner
54c7c6ea74 Add some helper functions to help treat "spaced" lparen and lsquares uniformly. 
Swift SVN r1708
 2012-05-02 00:30:45 +00:00
Chris Lattner
ab0c800e62 fix rdar://11344875, where we would reject "return;" 
Swift SVN r1686
 2012-04-30 03:52:04 +00:00
Eli Friedman
e33b1aac24 Don't try to synthesize an expression for a return statement which doesn't have one. <rdar://problem/11315114>. 
Swift SVN r1639
 2012-04-25 22:58:06 +00:00
Doug Gregor
f997a781bf Parsing and basic AST representation for 'foreach' statement. 
Swift SVN r1594
 2012-04-24 18:12:44 +00:00
Chris Lattner
cbc1eac438 irgen parser and sema support for for statements. 
Swift SVN r1505
 2012-04-19 21:43:46 +00:00
Eli Friedman
d5e7784010 Get rid of isModuleScope bit, since we don't like scattering bits across the AST; as a replacement, introduce TopLevelCodeDecl, which provides a DeclContext for all expressions and statements at the top level. <rdar://problem/11259941>. 
Swift SVN r1503
 2012-04-19 21:22:12 +00:00
Chris Lattner
df74bc03c0 lang ref and parser support for for statements. AST and sema next. 
Swift SVN r1493
 2012-04-19 18:25:48 +00:00
Chris Lattner
44af5d13ef refactor some code to expose a new expr-or-stmt-assign production. 
Swift SVN r1492
 2012-04-19 17:57:22 +00:00
Doug Gregor
6897b6ab44 Add support for parsing a subscripting declaration, e.g., 
subscript (i : Int) -> Double {
    get { /* get ith element of something */ }
    set { /* set ith element of something to value*/ }
  }



Swift SVN r1476
 2012-04-18 21:43:54 +00:00
John McCall
e6d56fd718 Require an unspaced [ to start a subscript or array-type suffix. 
Per discussion, this should probably be "no newline since the last
token", but that decision should be made simultaneously for ( and [.

Swift SVN r1461
 2012-04-18 08:08:58 +00:00
Eli Friedman
ecb0f2bba4 Add a little bit of missing error-checking for libraries. 
Swift SVN r1455
 2012-04-18 01:50:24 +00:00
Eli Friedman
cf10f0096e Make the REPL allow mutually recursive functions spread across multiple lines, like we do in script mode. 
Swift SVN r1453
 2012-04-18 01:20:38 +00:00
Eli Friedman
37de44a35d Implement changes to parsing/sema/etc so that we can implement a REPL and the main module parses the same way as a REPL. 
Next step: implement an actual REPL.



Swift SVN r1441
 2012-04-16 23:52:01 +00:00
Chris Lattner
fbfb76a515 rename 'plus' methods to 'static' methods, resolving: 
<rdar://problem/10718220> Need a better name than 'plus' for "static" functions



Swift SVN r1340
 2012-04-06 17:50:43 +00:00
Eli Friedman
f477cf588e Introduce the notion of the "main" module, i.e. the module which defines main(). Disallow top-level statements in modules other than the main module. Fix IRGen to generate a main() function in the main module, and implement top-level statements. Get rid of the main() mangling hack. Part of <rdar://problem/11185451>. 
I haven't really carefully considered whether existing type-checking etc. is correct for the main module (I think the name-binding rules need to be a bit different?), but it seems to work well enough for the obvious cases.

This is enough to get the one-liner "println(10)" to print "10" in "swift -i" mode, although the path to swift.swift still needs to be explicitly provided with -I.



Swift SVN r1325
 2012-04-05 00:35:28 +00:00
Eli Friedman
862646c1dd Perform conversion to bool in conditionals by repeatedly calling ".getLogicValue()" on the value until we reach Builtin.Int1, instead of using convertToLogicValue(). <rdar://problem/10100856>. 
Swift SVN r1173
 2012-03-10 00:02:36 +00:00
Chris Lattner
601e401dfa document the forthcoming expr-anon-closure syntax, part of rdar://10666917 
Swift SVN r1151
 2012-03-02 01:30:18 +00:00
Chris Lattner
ce9d3c4398 remove Parser::isStartOfExpr, which is only used by one caller that can 
be done in a simpler way.


Swift SVN r1150
 2012-03-02 01:07:21 +00:00
Chris Lattner
58b4a5d7cc have the parser produce ErrorStmt nodes to handle semantic errors... 
except that it never produces semantic errors.  How about that.


Swift SVN r1143
 2012-03-01 22:54:41 +00:00
Chris Lattner
6692cba150 simplify expression parsing to return a NullablePtr<Expr> instead of a ParseError<Expr>. 
The later could represent semantic errors, but we'd rather represent those with an
ExprError node instead.  This simplifies the code and allows the parser to build a more
fully-formed AST that IDE clients will like.


Swift SVN r1141
 2012-03-01 22:34:32 +00:00
Chris Lattner
17ea0a6670 finish my pass over LangRef, updating it and changing it and the parser to keep the grammars in sync. 
Swift SVN r1132
 2012-03-01 16:55:09 +00:00
John McCall
2b65cf22d1 Make 'this' implicitly [byref] when the container type does 
not have reference semantics.  Deciding whether the container
type has reference semantics requires us to perform
some amount of limited name-binding and type-checking first,
which introduces a few complexities.

Also, fix a bug in uncurried call emission.

Methods work now.



Swift SVN r1112
 2012-02-11 07:37:57 +00:00
John McCall
d0f4d86f3e Use LValueType everywhere instead of the l-value value kind. 
Kill off TypeJudgement.  Various fixes and improvements.



Swift SVN r1107
 2012-02-06 22:47:08 +00:00
Chris Lattner
bab9ca384c switch TupleExpr to use MutableArrayRef. 
Swift SVN r1090
 2012-01-19 06:54:43 +00:00
Chris Lattner
27f47dd705 eliminate the concept of a singular expression, which is obsolete and not in lang ref. 
Swift SVN r1084
 2012-01-18 23:59:04 +00:00
John McCall
59bed696a5 Introduce a ParenExpr to represent the special case of 
a tuple with one element and no labels.  This form is
treated specially in essentially every case, so it might
as well be its own expression kind.



Swift SVN r1021
 2012-01-12 19:55:06 +00:00
Chris Lattner
17b11e9bbd implement parsing, AST, and LangRef support for 'plus' methods. Dot syntax will need some work though to actually use them. 
Swift SVN r949
 2011-12-21 23:21:58 +00:00
Chris Lattner
eef2f69637 improve AST modeling of dot syntax calls to follow the syntactic structure instead of being weird and broken and losing source loc info. 
Swift SVN r938
 2011-12-15 00:52:58 +00:00
Chris Lattner
3d4111475e fix a minor pasto. 
Swift SVN r912
 2011-12-07 00:10:42 +00:00
Chris Lattner
0b72409c9c ensure that extension members get the proper function type, and a 'this' argument. 
Swift SVN r908
 2011-12-06 20:23:53 +00:00
Chris Lattner
8d53c9f3b9 restrict 'extension' to only exist at file scope. 
Swift SVN r899
 2011-12-06 00:11:13 +00:00
Doug Gregor
1ed6cdbb09 Fix broken source-range information for expressions of the form "x.y". 
Swift SVN r861
 2011-11-10 17:25:08 +00:00
Doug Gregor
0223f3edf1 Implement Expr::getSourceRange() and introduce proper support for this 
function into all of the expression nodes. Re-implement
Expr::getStartLoc() in terms of this function, and add it's brother
Expr::getEndLoc(), removing the specialized implementations.

Clean up the source ranges of implicitly-created tuple expressions in
the process.


Swift SVN r855
 2011-11-10 00:25:48 +00:00
Chris Lattner
9e783adda1 introduce and use a new parseMatchingToken method. 
Swift SVN r841
 2011-11-09 01:09:07 +00:00
Chris Lattner
f02dc055d3 introduce a form of parseToken that returns the location of the parsed token 
on success, allowing simplifications in clients.


Swift SVN r840
 2011-11-09 00:56:52 +00:00
Chris Lattner
ffa9a55002 implement skeleton of extension body parsing. 
Swift SVN r839
 2011-11-09 00:49:54 +00:00
Chris Lattner
0b9b982758 rework parseDecl to do validation itself, allow decls in oneof's 
Swift SVN r837
 2011-11-08 22:41:27 +00:00
Chris Lattner
c872bb4782 improve error recovery in {}'s by using less hacky recovery. 
Swift SVN r836
 2011-11-08 21:09:28 +00:00
Chris Lattner
b5c6fa8e21 split error recovery behavior out of parseDecl, making it more 
conventional and allowing more appropriate recovery in various 
caller's contexts.


Swift SVN r835
 2011-11-08 21:05:10 +00:00
Chris Lattner
7e08140150 rearrange some code to use common predicates. 
Swift SVN r834
 2011-11-08 20:12:05 +00:00
Chris Lattner
bcd6f2f474 helper function-ize. 
Swift SVN r833
 2011-11-08 20:02:30 +00:00