f4198b7598
C++1y literal suffix support:
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* Allow ns, us, ms, s, min, h as numeric ud-suffixes
* Allow s as string ud-suffix
llvm-svn: 186933
2013-07-23 08:14:48 +00:00
088d39afc6
Integers which are too large should be an error.
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Switch some warnings over to errors which should never have been warnings
in the first place. (Also, a minor fix to the preprocessor rules for
integer literals while I'm here.)
llvm-svn: 186903
2013-07-23 00:25:18 +00:00
c5c27f2a1f
Note that we support (and in fact have supported since the dawn of time itself)
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C++1y binary literals.
llvm-svn: 179883
2013-04-19 20:47:20 +00:00
a7d03840e6
Excise <cctype> from Clang (except clang-tblgen) in favor of CharInfo.h.
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Nearly all of these changes are one-to-one replacements; the few that
aren't have to do with custom identifier validation.
llvm-svn: 174768
2013-02-08 22:30:41 +00:00
9feeef40f5
Move UTF conversion routines from clang/lib/Basic to llvm/lib/Support
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This is required to use them in TableGen.
llvm-svn: 173924
2013-01-30 12:06:08 +00:00
c0cba27230
PR15067: Don't assert when a UCN appears in a C90 file.
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Unfortunately, we can't accept the UCN as an extension because we're
required to treat it as two tokens for preprocessing purposes.
llvm-svn: 173622
2013-01-27 20:12:04 +00:00
aa89cf1a66
Unify diagnostics for \x, \u, and \U without any following hex digits.
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llvm-svn: 173368
2013-01-24 20:50:13 +00:00
78ed86a7e5
Adopt llvm::hexDigitValue.
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llvm-svn: 172861
2013-01-18 22:33:58 +00:00
2bf7fdb723
s/CPlusPlus0x/CPlusPlus11/g
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llvm-svn: 171367
2013-01-02 11:42:31 +00:00
3a02247dc9
Sort all of Clang's files under 'lib', and fix up the broken headers
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uncovered.
This required manually correcting all of the incorrect main-module
headers I could find, and running the new llvm/utils/sort_includes.py
script over the files.
I also manually added quite a few missing headers that were uncovered by
shuffling the order or moving headers up to be main-module-headers.
llvm-svn: 169237
2012-12-04 09:13:33 +00:00
7d574e269d
LiteralSupport: Don't overflow the temporary buffer when decoding invalid string parts.
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Instead just use a dummy buffer, we're not going to use the decoded string anyways.
Fixes PR14292.
llvm-svn: 167594
2012-11-08 19:22:31 +00:00
f23a6e6f80
LiteralSupport: Clean up style violations. No functionality change.
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llvm-svn: 167593
2012-11-08 19:22:26 +00:00
a0613170b4
Handle string encoding diagnostics when there are too many invalid ranges.
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llvm-svn: 167059
2012-10-30 23:22:22 +00:00
4cfc817a9a
improve highlighting of invalid string encodings
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limit highlight to exactly the bad encoding, and highlight every
bad encoding in a string.
llvm-svn: 166900
2012-10-28 18:24:46 +00:00
de584de370
Rename CanFitInto64Bits to alwaysFitsInto64Bits per discussion on IRC.
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This makes the behavior clearer concerning literals with the maximum
number of digits. For a 32-bit example, 4,000,000,000 is a valid uint32_t,
but 5,000,000,000 is not, so we'd have to count 10-digit decimal numbers
as "unsafe" (meaning we have to check for overflow when parsing them,
just as we would for numbers with 11 digits or higher). This is the same,
only with 64 bits to play with.
No functionality change.
llvm-svn: 164639
2012-09-25 22:32:51 +00:00
511288b2b5
Optimize NumericLiteralParser::GetIntegerValue().
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It does a conservative estimate on the size of numbers that can fit into
uint64_t. This bound is improved.
llvm-svn: 164624
2012-09-25 19:09:15 +00:00
7ba91723e7
Small cleanup of literal semantic analysis: hiding 'char *' pointers behind
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StringRef makes code cleaner. Also, make the temporary buffer smaller:
512 characters is unreasonably large for integer literals.
llvm-svn: 164484
2012-09-24 09:53:54 +00:00
639b8d05dd
When a bad UTF-8 encoding or bogus escape sequence is encountered in a
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string literal, produce a diagnostic pointing at the erroneous character
range, not at the start of the literal.
llvm-svn: 163459
2012-09-08 07:16:20 +00:00
4b18c3ff40
Share ConvertUTF8toWide() between Lex and CodeGen.
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llvm-svn: 159634
2012-07-03 02:24:52 +00:00
99c193b3c0
Documentation cleanup: add \verbatim markup for grammar productions
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llvm-svn: 158740
2012-06-19 21:04:25 +00:00
1cc2203286
Documentation cleanup: added \verbatim...\verbatim markup to fix the
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formatting of Doxygen's output for StringLiteralParser::StringLiteralParser.
llvm-svn: 158616
2012-06-17 03:34:42 +00:00
0948d93b7f
Fix off-by-one error in UTF-16 encoding: don't try to use a surrogate pair for U+FFFF.
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llvm-svn: 158391
2012-06-13 05:41:29 +00:00
4060f77462
PR13099: Teach -Wformat about raw string literals, UTF-8 strings and Unicode escape sequences.
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llvm-svn: 158390
2012-06-13 05:37:23 +00:00
9933e3ac88
In StringLiteralParser::init, make sure we emit an error when
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failing to lex the string, as suggested by Eli.
Part of rdar://11305263.
llvm-svn: 156081
2012-05-03 17:50:32 +00:00
4e5b5c36f4
In StringLiteralParser::init(), fail gracefully if the string is
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not as we expect; it may be due to racing issue of a file coming from PCH
changing after the PCH is loaded.
rdar://11353109
llvm-svn: 156043
2012-05-03 01:01:56 +00:00
bbafb8a745
Unify naming of LangOptions variable/get function across the Clang stack (Lex to AST).
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The member variable is always "LangOpts" and the member function is always "getLangOpts".
Reviewed by Chris Lattner
llvm-svn: 152536
2012-03-11 07:00:24 +00:00
2a70e65436
Improve diagnostics for UCNs referring to control characters and members of the
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basic source character set in C++98. Add -Wc++98-compat diagnostics for same in
literals in C++11. Extend such support to cover string literals as well as
character literals, and mark N2170 as done.
This seems too minor to warrant a release note to me. Let me know if you disagree.
llvm-svn: 152444
2012-03-09 22:27:51 +00:00
812924502b
When checking the encoding of an 8-bit string literal, don't just check the
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first codepoint! Also, don't reject empty raw string literals for spurious
"encoding" issues. Also, don't rely on undefined behavior in ConvertUTF.c.
llvm-svn: 152344
2012-03-08 21:59:28 +00:00
39570d0020
Add support for cooked forms of user-defined-integer-literal and
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user-defined-floating-literal. Support for raw forms of these literals
to follow.
llvm-svn: 152302
2012-03-08 08:45:32 +00:00
75b67d6dc5
User-defined literal support for character literals.
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llvm-svn: 152277
2012-03-08 01:34:56 +00:00
e18f0faff2
Lexing support for user-defined literals. Currently these lex as the same token
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kinds as the underlying string literals, and we silently drop the ud-suffix;
those issues will be fixed by subsequent patches.
llvm-svn: 152012
2012-03-05 04:02:15 +00:00
9436352a82
Implement warning for non-wide string literals with an unexpected encoding. Downgrade error for non-wide character literals with an unexpected encoding to a warning for compatibility with gcc and older versions of clang. <rdar://problem/10837678>.
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llvm-svn: 150295
2012-02-11 05:08:10 +00:00
e1224a5067
Fixing hex floating literal support so that it handles 0x.2p2 properly.
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llvm-svn: 150072
2012-02-08 13:36:33 +00:00
b97a5addd5
Hex literals without a significand no longer crash the lexer. Fixes bug 7910
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Patch by Eitan Adler
llvm-svn: 149984
2012-02-07 13:46:03 +00:00
2c1dd2716a
Basic: import SmallString<> into clang namespace
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(I was going to fix the TODO about DenseMap too, but
that would break self-host right now. See PR11922.)
llvm-svn: 149799
2012-02-05 02:13:05 +00:00
9c2d6f0279
stop claiming unicode escape sequences are too long in strings, because they never are
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llvm-svn: 148391
2012-01-18 12:27:08 +00:00
8b2b677f39
Improves support for Unicode in character literals
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Updates ProcessUCNExcape() for C++. C++11 allows UCNs in character
and string literals that represent control characters and basic
source characters. Also C++03 allows UCNs that refer to surrogate
codepoints.
UTF-8 sequences in character literals are now handled as single
c-chars.
Added error for multiple characters in Unicode character literals.
Added errors for when a the execution charset encoding of a c-char
cannot be represented as a single code unit in the associated
character type. Note that for the purposes of this error the asso-
ciated character type for a narrow character literal is char, not
int, even though in C narrow character literals have type int.
llvm-svn: 148389
2012-01-18 12:27:04 +00:00
d60b72f696
Fix a regression in wide character codegen. See PR11369.
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llvm-svn: 144521
2011-11-14 05:17:37 +00:00
20554708fb
Fix one last place where we weren't writing into a string literal consistently.
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llvm-svn: 143769
2011-11-05 00:41:04 +00:00
d1370791c2
Use native endianness for writing out character escapes to the result buffer for string literal parsing. No functional change on little-endian architectures; should fix test failures on PPC.
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llvm-svn: 143585
2011-11-02 23:06:23 +00:00
703e7153af
Perform proper conversion for strings encoded in the source file as UTF-8. (For now, we are assuming the source character set is always UTF-8; this can be easily extended if necessary.)
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Tests will be coming up in a subsequent commit.
Patch by Seth Cantrell.
llvm-svn: 143416
2011-11-01 02:14:50 +00:00
227c352bae
We do parse hexfloats in C++11; make it actually work.
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llvm-svn: 141798
2011-10-12 18:51:02 +00:00
4d68366b2f
When parsing a character literal, extract the characters from the
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buffer as an 'unsigned char', so that integer promotion doesn't
sign-extend character values > 127 into oblivion. Fixes
<rdar://problem/10188919>.
llvm-svn: 140608
2011-09-27 17:00:18 +00:00
9c902b5502
Rename Diagnostic to DiagnosticsEngine as per issue 5397
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llvm-svn: 140478
2011-09-25 23:23:43 +00:00
76bd3c80d4
Fix missing includes for llvm_unreachable
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llvm-svn: 140368
2011-09-23 05:35:21 +00:00
83d382b1ca
Switch assert(0/false) llvm_unreachable.
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llvm-svn: 140367
2011-09-23 05:06:16 +00:00
0706d203cf
Rename LangOptions::Microsoft to LangOptions::MicrosoftExt to make it clear that this flag must be used only for Microsoft extensions and not emulation; to avoid confusion with the new LangOptions::MicrosoftMode flag.
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Many of the code now under LangOptions::MicrosoftExt will eventually be moved under the LangOptions::MicrosoftMode flag.
llvm-svn: 139987
2011-09-17 17:15:52 +00:00
86325ad2b5
Allow C99 hexfloats in C++0x mode. This change resolves the standards
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collision between C99 hexfloats and C++0x user-defined literals by
giving C99 hexfloats precedence. Also, warning about user-defined
literals that conflict with hexfloats and those that have names that
are reserved by the implementation. Fixes <rdar://problem/9940194>.
llvm-svn: 138839
2011-08-30 22:40:35 +00:00
6eb2058a6a
Warn about and truncate UCNs that are too big for their character literal type.
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llvm-svn: 138031
2011-08-19 03:20:12 +00:00
9f8a02d34e
De-Unicode-ify.
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llvm-svn: 137430
2011-08-12 05:49:51 +00:00
Richard Smith