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503 Commits

Author SHA1 Message Date
Chris Lattner
9b30ba0b2c refactor function body parsing+sema a bit. 
Swift SVN r126
 2010-08-01 04:55:49 +00:00
Chris Lattner
b3c9942644 Rework handling of sequence expressions and juxtaposition to eagerly bind arguments to functions. This means that in situations like: 
foo (_0)  bar (_0)

that _0 will be bound properly and individually to foo and bar when they are functions, but if they aren't, then this is just one big 4-element sequence.

Swift SVN r115
 2010-07-30 17:53:43 +00:00
Chris Lattner
667078650a Implement support for anonymous closure arguments. For example, we can now compile this: 
var func6 : ((int,int) -> int) -> ();  // Takes a function, returns nothing.
func funcdecl5() {
  func6(_0 + _1);         // Closure with two named anonymous arguments
}
into:

  (apply_expr type='()'
    (declref_expr type='(int, int) -> int -> ()' decl=func6)
    (closure_expr type='(int, int) -> int'
     (anondecl '_0' type='int')
     (anondecl '_1' type='int')
     (tuple_expr type='int'
      (binary_expr '+' type='int'
       (declref_expr type='int' decl=_0)
       (declref_expr type='int' decl=_1))))))))

However, there are still some problems with this (and we're definitely not doing type inference yet, all anon args are assumed 'int').

Swift SVN r111
 2010-07-28 06:25:16 +00:00
Chris Lattner
bb0fecffa6 fix an error recovery bug that lead to a crash. 
Swift SVN r110
 2010-07-27 21:46:09 +00:00
Chris Lattner
6d9d480d52 Allow optional = after func with a body. 
Swift SVN r106
 2010-07-27 20:21:04 +00:00
Chris Lattner
e842e93c89 improve error recovery for var decls and simplify parser code. 
Swift SVN r105
 2010-07-27 06:57:02 +00:00
Chris Lattner
4cba5da90e Improve error recovery (and clean up code!) on a malformed func decl 
Swift SVN r104
 2010-07-27 06:54:43 +00:00
Chris Lattner
ce55229f0f Allow arbitrary expressions as the body of a function, don't require brace-expr. 
Swift SVN r103
 2010-07-27 06:36:04 +00:00
Chris Lattner
874421d4ce Implement AST and Sema support for auto-closures. We now parse: 
var closure1 : () -> int = 4;  // Function producing 4 whenever it is called.
var closure2 : (int,int) -> int = 4; // Has some (dead) arguments.

into:

(vardecl 'closure1' type='() -> int'
 (closure_expr type='() -> int'
  (integer_literal type='int' value=4)))
(vardecl 'closure2' type='(int, int) -> int'
 (closure_expr type='(int, int) -> int'
  (integer_literal type='int' value=4)))


Swift SVN r101
 2010-07-27 06:27:02 +00:00
Chris Lattner
fef3e71b42 stub out parsing of func declarations. 
Swift SVN r95
 2010-07-27 05:32:16 +00:00
Chris Lattner
883efc284b various cleanups to fixmes. Move a parsing check from sema to parser. 
Swift SVN r91
 2010-07-25 22:48:47 +00:00
Chris Lattner
fa78da101b implement lazy construction of canonical types, ala clang. This only affect tuples at the moment, but will affect type aliases someday. 
Swift SVN r90
 2010-07-25 22:41:05 +00:00
Chris Lattner
4740573188 tidy up some dead code in parser, rearrange readme 
Swift SVN r89
 2010-07-25 22:15:45 +00:00
Chris Lattner
7e0123c768 Kill off add/sub/mul/div as special AST nodes. Instead, + is just yet-another identifier token and BinaryExpr is a generalized infix call expression. 
Swift SVN r88
 2010-07-25 19:16:45 +00:00
Chris Lattner
5562fc3cff Actually form ApplyExprs. We're not checking that the actual argument matches the formal argument for a function yet, but we can parse some nice stuff like: 
var func3 : () -> () -> ();     // Takes nothing, returns a function.
var call4 = func3()();

into:
(vardecl 'call4' type='()'
 (brace_expr type='()'
  (apply_expr type='()'
   (apply_expr type='() -> ()'
    (declref_expr type='() -> () -> ()' decl=func3)
    (tuple_expr type='()'))
   (tuple_expr type='()'))))


Swift SVN r86
 2010-07-25 05:57:53 +00:00
Chris Lattner
6c89184aee rework sequence handling, we still build an incorrect AST: this time we build a BraceExpr to represent it. 
Swift SVN r84
 2010-07-25 05:27:15 +00:00
Chris Lattner
cd99eee0c6 Add parser support and stub out a SemaExpr callback for sequence exprs, the foundation of function calls. 
Swift SVN r83
 2010-07-24 22:07:23 +00:00
Chris Lattner
9b42d1b273 enhance parenexpr to be tupleexpr. The grouping paren case is just a special case of a tuple literal with one child. 
Swift SVN r81
 2010-07-24 21:24:44 +00:00
Chris Lattner
4a2ea23b23 Enhance the parser to parse infix decls. The AST it constructs is still not correct though. We have no way to represent function calls yet! 
Swift SVN r80
 2010-07-24 20:59:00 +00:00
Chris Lattner
94110869e0 add support for parsing attribute lists, and add the first attribute, infix=42. It is now parsed and slammed into the AST, but not used. 
Swift SVN r79
 2010-07-24 20:44:56 +00:00
Chris Lattner
2bafb0e8fb Introduce new NamedDecl and FuncDecl classes. The difference between the two is syntactic sugar, so most clients want NamedDecl. This doesn't implement FuncDecl yet, which isn't a high prio for me in the short term. 
Swift SVN r77
 2010-07-24 19:09:09 +00:00
Chris Lattner
9a0d6c735a change the handling of nullable so that hte parser actually checks for the error and only invokes sema if the inputs are valid, tidying up some code. 
Swift SVN r76
 2010-07-24 18:52:46 +00:00
Chris Lattner
315107d5c6 Use the new NullablePtr<> class to allow better error recovery when parsing invalid expressions. 
Swift SVN r74
 2010-07-24 18:48:37 +00:00
Chris Lattner
1103ff5227 Implement basic parser support for brace expressions. 
Swift SVN r69
 2010-07-23 18:33:49 +00:00
Chris Lattner
58185415a1 now that we have name lookup, we can implement references to 
other values.  crazzay.


Swift SVN r67
 2010-07-23 05:48:20 +00:00
Chris Lattner
f248ffb53a Introduce a scope abstraction, the next step to implementing 
name lookup.


Swift SVN r65
 2010-07-23 04:37:16 +00:00
Chris Lattner
7ff4cc6e21 split the decl processing stuff in Sema out into a new 
SemaDecl class where it belongs.  Tidy up headers a bit.


Swift SVN r64
 2010-07-23 04:13:53 +00:00
Chris Lattner
d8c6da6a3c tweak comments. void is no longer in the AST, but it shouldn't even 
be a keyword



Swift SVN r61
 2010-07-22 06:51:03 +00:00
Chris Lattner
0380f7a073 fix inverted logic 
Swift SVN r59
 2010-07-22 06:34:08 +00:00
Chris Lattner
ac1200cda5 rename Token::getLocation() to Token::getLoc() 
Swift SVN r54
 2010-07-22 05:55:04 +00:00
Chris Lattner
49b3c52843 implement parser support for function types. 
Swift SVN r50
 2010-07-22 02:11:49 +00:00
Chris Lattner
b1d25371e3 type things as VarDecl instead of as Decl, return things by value from 
void parse methods.


Swift SVN r48
 2010-07-22 00:47:53 +00:00
Chris Lattner
aa126e87f9 add a new SemaType module, add parser support for tuples. 
Add lexer support for ->.  Expand the testcase.


Swift SVN r47
 2010-07-21 07:17:43 +00:00
Chris Lattner
f7c8e53359 implement isa/dyncast and dumping support for exprs. 
We can now parse and print this:
var x3 = 4+5*4+12/97;

into:
(vardecl 'x3'
 (binary_expr
  (binary_expr
   (integer_literal 4)
   (binary_expr
    (integer_literal 5)
    (integer_literal 4)))
  (binary_expr
   (integer_literal 12)
   (integer_literal 97))))




Swift SVN r46
 2010-07-19 06:52:08 +00:00
Chris Lattner
a3795e1540 actually invoke the ast consumer. 
Swift SVN r42
 2010-07-19 05:53:48 +00:00
Chris Lattner
669c129ab0 introduce new ASTConsumer interface, have parser invoke methods 
on it.


Swift SVN r41
 2010-07-19 05:50:41 +00:00
Chris Lattner
2264640f12 fix a fixme by sinking some sema into sema. 
Swift SVN r40
 2010-07-19 05:15:29 +00:00
Chris Lattner
2eeee5faca give ASTContext a SourceMgr reference, add diagnostic hooks to SemaBase. 
Swift SVN r39
 2010-07-19 05:13:55 +00:00
Chris Lattner
c5e54442b4 make the parser actually create VarDecl AST nodes. 
Swift SVN r38
 2010-07-19 05:08:21 +00:00
Chris Lattner
a3164a1a1a add void type. 
Swift SVN r35
 2010-07-19 04:40:47 +00:00
Chris Lattner
9e8489a042 make the parser build type asts. 
Swift SVN r34
 2010-07-19 04:37:51 +00:00
Chris Lattner
a63671f116 add binary expression ast node. 
Swift SVN r31
 2010-07-19 00:57:54 +00:00
Chris Lattner
a39a7ec6a2 make the sema methods be prefixed with ActOn 
Swift SVN r29
 2010-07-19 00:46:09 +00:00
Chris Lattner
d6edeb7a8b thread Expr* results through the parser and SemaExpr. 
Swift SVN r27
 2010-07-19 00:15:02 +00:00
Chris Lattner
910f84b6ae thread astcontext from the driver, down through Sema. 
Swift SVN r26
 2010-07-19 00:07:47 +00:00
Chris Lattner
b45fe8abf5 set up semaexpr and sema base. Give SemaExpr a couple trivial methods. 
Swift SVN r24
 2010-07-18 23:54:47 +00:00
Chris Lattner
c02e462b58 wire sema up to the Parser. 
Swift SVN r22
 2010-07-18 23:00:47 +00:00
Chris Lattner
66fe17ffdb parse some trivial binary expression, like: 
var x3 = 4+5*4+12/97;



Swift SVN r20
 2010-07-18 22:55:11 +00:00
Chris Lattner
3e53d83874 implement support for parenthesized expressions. 
Swift SVN r19
 2010-07-18 22:36:34 +00:00
Chris Lattner
9460c31203 implement enough parser support to parse: 
var x : int;
var x2 = 4;



Swift SVN r16
 2010-07-18 21:31:34 +00:00