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Commit Graph

24831 Commits

Author SHA1 Message Date
John McCall
15922d77b4 Go ahead and support outputting to .ll, .bc, .s, and .o. 
Swift SVN r546
 2011-08-13 22:01:51 +00:00
Chris Lattner
5d9e2e4a8d now that the Sema code is in the parse library, the Sema headers are all private, make it so. 
Swift SVN r544
 2011-08-13 21:15:17 +00:00
Chris Lattner
33f774f9b7 Rearrange a bunch of code for better layering: instead of Parser depending on Sema, 
just move the Sema code into the Parser library.  There is no way to use one without
the other.  The library formerly known as Sema will get renamed.


Swift SVN r542
 2011-08-13 21:06:10 +00:00
John McCall
42449b02bb Massively slow down link times by uselessly emitting empty modules. 
Swift SVN r538
 2011-08-13 07:40:45 +00:00
John McCall
bca041368d Structure for IR generation. 
Swift SVN r537
 2011-08-13 05:37:06 +00:00
Chris Lattner
b8fd157450 rip out the dead "isPrecededByIdentifier" logic from the AST and Lexer. 
Swift SVN r529
 2011-08-12 21:36:25 +00:00
John McCall
ddd134854e Rename ApplyExpr to CallExpr and change the signature of SemaCallExpr. 
Swift SVN r523
 2011-08-12 17:31:14 +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
36f5427de3 Make the lexer disambiguate between a ( that is the start of an expression and a ( that is the start of 
a call argument list.


Swift SVN r508
 2011-08-12 01:46:39 +00:00
Chris Lattner
0871b128f8 add support for /**/ comments to the lexer, allow nesting of them since we won't 
have the #if 0 hack to handle nesting.


Swift SVN r506
 2011-08-12 00:37:01 +00:00
Chris Lattner
abe344bef2 switch statements to use ParseResult, enhance ParseResult to map ParseResult<BraceStmt> 
convertible to ParseResult<Stmt>.


Swift SVN r505
 2011-08-12 00:16:41 +00:00
Chris Lattner
7a5e383c0b some localized cleanups for diagnostics. 
Swift SVN r504
 2011-08-11 23:38:30 +00:00
Chris Lattner
0e8a66ec9d Introduce a new ParseResult<T> helper class, which is effectively 
oneof { T*, Absent, ParseError, SemaError }.

This replaces the former convention used by the expression parsing
logic that used NullablePtr + bool to indicate all of these states,
in a way that I could never keep straight.

This should lead to better error recovery, but needs to be adopted by
more parts of the parser.  Sema still uses NullablePtr because it
either returns a valid AST node or has a semantic error, there is no
parse error possible in Sema.



Swift SVN r503
 2011-08-11 23:35:27 +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
John McCall
944183d985 Split tok::oper out of tok::identifier. No functionality change. 
The consumeToken(Tok.getKind()) is terrible, but will disappear when
most of these cases have operators stripped out.



Swift SVN r500
 2011-08-11 06:17:31 +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
39660b5017 add langref and lexer support for return stmt. 
Swift SVN r492
 2011-08-03 22:43:57 +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
a64c74ec94 Replace lambda keyword with func. One annoying aspect of this that I didn't 
think about will occur when/if we want to support attributes on func expression.
That should look like "func [attributes]{ ... }" but now that requires looking
beyond that attributes to know if this is a funcdecl or funcexpr.  Nothing that
more heroic lookahead can't handle.



Swift SVN r486
 2011-08-03 00:28:11 +00:00
Chris Lattner
23759c8624 rename Lex -> lex too. 
Swift SVN r484
 2011-08-03 00:08:21 +00:00
Chris Lattner
fdc2dcc7db rename lexer methods to follow the naming convention and add the ability to lookahead one token. 
Swift SVN r483
 2011-08-03 00:07:43 +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
9279ebe82b add Decl visition to ExprStmtVisitor.h, switch Decl.cpp to print the same way 
expr and stmt does.



Swift SVN r470
 2011-07-31 20:38:13 +00:00
Chris Lattner
93ac2b3cb9 rename FuncExpr to LambdaExpr. 
Swift SVN r468
 2011-07-31 20:15:56 +00:00
Chris Lattner
c3bbefcbaa add support for lambda expressions (anonymous functions), which are the thing that 
func is sugar for.  Unfortunately, we can't use 'func' without introducing ambiguity
since decls and exprs can exist in the same context, I'm not wed to 'lambda' as the
keyword, thoughts welcome.


Swift SVN r467
 2011-07-31 20:12:20 +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
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
c739c7955a fit in 80 cols 
Swift SVN r456
 2011-07-31 01:20:16 +00:00
Chris Lattner
4071deceb1 update whitepaper for new syntax. 
Swift SVN r445
 2011-07-24 21:19:22 +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
6f7c702321 disable copy and assignment of various types, and plain 'operator new' of others 
using the new '0x way.


Swift SVN r443
 2011-07-24 19:33:27 +00:00
Chris Lattner
6fbe70dd87 convert TokenKind to a scoped enum, eliminating the old c++'98 hackaround to 
emulate it.


Swift SVN r442
 2011-07-24 19:28:36 +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
f3c270fa06 convert DeclKind to an scoped enum 
Swift SVN r439
 2011-07-24 18:44:56 +00:00
Chris Lattner
f114a7ab79 close some declarations with shift right, adopting another killer '0x feature :) 
Swift SVN r436
 2011-07-24 00:37:18 +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