510ab61fd3
Add optimization for identifier##identifier -> identifier, the most common case of token pasting.
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llvm-svn: 38747
2006-07-20 04:47:30 +00:00
0f1f50517b
Simplify identifier lookup in raw mode, implementing Preprocessor/macro_fn_lparen_scan2.c.
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llvm-svn: 38744
2006-07-20 04:16:23 +00:00
a7e2e74cef
Avoid testing / ## * in the lexer. This will cause an unhelpful error message
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to be emitted from the lexer. This fixes macro_paste_c_block_comment.c
llvm-svn: 38737
2006-07-19 06:32:35 +00:00
e8dcfef324
Fix test/Preprocessor/macro_paste_spacing.c
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llvm-svn: 38734
2006-07-19 05:45:55 +00:00
01ecf835c2
Implement basic token pasting (## operator). This implements
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test/Preprocessor/macro_paste_simple.c and macro_paste_bad.c. There are
several known bugs still.
llvm-svn: 38733
2006-07-19 05:42:48 +00:00
7e2e669080
Handle really simple expansion of ## formals. Do not handle the empty case
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yet though.
llvm-svn: 38729
2006-07-19 03:51:26 +00:00
2183a6e8f4
Make end-of-file handling much less recursive. This reduces the worst case
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stack depth sampled by shark from ~34 to ~17 frames when preprocessing <iostream>.
llvm-svn: 38726
2006-07-18 06:36:12 +00:00
7667d0d942
Implement support for lexing from a pre-constructed token stream.
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Use this support to implement function-like macro argument preexpansion.
This implements test/Preprocessor/macro_fn_preexpand.c
llvm-svn: 38724
2006-07-16 18:16:58 +00:00
203b4568e2
Implement basic argument substitution. This implements
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test/Preprocessor/macro_fn_disable_expand.c
llvm-svn: 38720
2006-07-15 21:07:40 +00:00
7c58149107
Clarify assertion
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llvm-svn: 38718
2006-07-15 07:56:31 +00:00
2ada5d3890
More changes from formals -> actuals.
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llvm-svn: 38717
2006-07-15 07:51:24 +00:00
ee8760b21b
Rename macroformalargs -> MacroArgs, as it represents the actual arguments,
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not the formal arguments, to a macro.
llvm-svn: 38716
2006-07-15 07:42:55 +00:00
6016169cb8
The leading space flag of a stringized string matches that of the # operator.
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llvm-svn: 38713
2006-07-15 06:48:02 +00:00
c783d1dff9
Implement the microsoft charize extension #@
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llvm-svn: 38712
2006-07-15 06:11:25 +00:00
f2781509f9
Add a comment giving an example of the error
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llvm-svn: 38710
2006-07-15 05:27:44 +00:00
0707bd3042
Implement stringification.
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llvm-svn: 38709
2006-07-15 05:23:58 +00:00
b935d8cd90
Set up infrastructure for function-like macro expansion with preexpansion
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stringizing, etc.
llvm-svn: 38707
2006-07-14 06:54:44 +00:00
d8aee0e81b
Implement "lparen scanning" for lexer buffers, by making "skipping lexing"
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completely reversible. This implements tests 3/4 of
test/Preprocessor/macro_fn_lparen_scan.c
llvm-svn: 38699
2006-07-11 05:04:55 +00:00
afe603fa7d
Implement scanning-for-( more correctly. This implements
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test/Preprocessor/macro_fn_lparen_scan.c, but is not yet complete.
Add some FIXME's about missing diagnostics on empty macro args. Improve some
comments.
llvm-svn: 38694
2006-07-11 04:02:46 +00:00
7818605f83
Read, remember, and validate the arguments provided the a function-style
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macro invocation.
llvm-svn: 38685
2006-07-09 00:45:31 +00:00
c673f905d8
Implement the __TIME__ and __DATE__ builtin macros.
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llvm-svn: 38597
2006-06-30 06:10:41 +00:00
67b07cb6fe
Implement Preprocessor/macro_expandloc.c by giving the optimized macro
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expansion case a correct source location.
llvm-svn: 38580
2006-06-26 02:03:42 +00:00
30709b038d
Implement a new type of FileID: FileIDInfo::MacroExpansion. For tokens that
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came from a macro expansion, this allows us to keep track of both where the
character data came from and where the logical position of the token is (at
the expansion site). This implements Preprocessor/indent_macro.c, and
reduces the number of cpp iostream -E diffs vs GCC from 2589 to 2297.
llvm-svn: 38557
2006-06-21 03:01:55 +00:00
50b497e072
Rename LexerToken::getSourceLocation -> getLocation
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llvm-svn: 38553
2006-06-18 16:32:35 +00:00
d01e291332
Make a fundamental change to the way we represent the location of LexerToken's.
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Now, instead of keeping a pointer to the start of the token in memory, we keep the
start of the token as a SourceLocation node. This means that each LexerToken knows
the full include stack it was created with, and means that the LexerToken isn't
reliant on a "CurLexer" member to be around (lexer tokens would previously go out of
scope when their lexers were deallocated).
This simplifies several things, and forces good cleanup elsewhere. Now the
Preprocessor is the one that knows how to dump tokens/macros and is the one that
knows how to get the spelling of a token (it has all the context).
llvm-svn: 38551
2006-06-18 16:22:51 +00:00
cb28334ea4
Remove manual conditional error handling code.
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llvm-svn: 38540
2006-06-18 06:48:37 +00:00
22eb972f38
Initial checkin of c-language parser
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llvm-svn: 38539
2006-06-18 05:43:12 +00:00
Chris Lattner