Commit Graph

14 Commits

Author SHA1 Message Date
Alexander Shaposhnikov da4c312634 [clang] Fix format test
This diff makes the test FixIt/format.m more robust.
The issue was caught by the build bot clang-cmake-thumbv7-a15.

Test plan: make check-all

llvm-svn: 308073
2017-07-15 01:06:59 +00:00
Alexander Shaposhnikov 441c1d92df [clang] Fix handling of "%zd" format specifier
This diff addresses FIXME in lib/Analysis/PrintfFormatString.cpp
and makes PrintfSpecifier::getArgType return the correct type. 
In particular, this change enables Clang to emit a warning on 
incorrect using of "%zd"/"%zn" format specifiers.

Differential revision: https://reviews.llvm.org/D35427

Test plan: make check-all

llvm-svn: 308067
2017-07-14 22:57:00 +00:00
David Majnemer c10b8381f7 Update tests touched by r249656
These test updates almost exclusively around the change in behavior
around enum: enums without a definition are considered incomplete except
when targeting MSVC ABIs.  Since these tests are interested in the
'incomplete-enum' behavior, restrict them to %itanium_abi_triple.

llvm-svn: 249660
2015-10-08 06:31:22 +00:00
Benjamin Kramer 5b81765bfd Fix test on platforms where size_t is not 'unsigned long'.
llvm-svn: 209974
2014-05-31 15:06:33 +00:00
Jordan Rose bc53ed1ee6 Format strings: check against an enum's underlying type.
This allows us to be more careful when dealing with enums whose fixed
underlying type requires special handling in a format string, like
NSInteger.

A refinement of r163266 from a year and a half ago, which added the
special handling for NSInteger and friends in the first place.

<rdar://problem/16616623>

llvm-svn: 209966
2014-05-31 04:12:14 +00:00
Ted Kremenek da2f405b09 Special case '%C' handling in ObjC format strings to handle integer literals that can represent unicode characters
Fixes <rdar://problem/13991617>.

llvm-svn: 192673
2013-10-15 05:25:17 +00:00
Jordan Rose 1eb342920b Format strings: don't ever convert %+d to %lu.
Presumably, if the printf format has the sign explicitly requested, the user
wants to treat the data as signed.

This is a fix-up for r172739, and also includes several test changes that
didn't make it into that commit.

llvm-svn: 172762
2013-01-17 22:34:10 +00:00
Jordan Rose aa7a3b3e75 Format strings: correct signedness if already correcting width (%d,%u).
It is valid to do this:
  printf("%u", (int)x);

But if we see this:
  printf("%lu", (int)x);

...our fixit should suggest %d, not %u.

llvm-svn: 172739
2013-01-17 18:47:16 +00:00
Jordan Rose 0e5badd93b Format strings: offer a cast to 'unichar' for %C in Objective-C contexts.
For most cases where a conversion specifier doesn't match an argument,
we usually guess that the conversion specifier is wrong. However, if
the argument is an integer type and the specifier is %C, it's likely
the user really did mean to print the integer as a character.

(This is more common than %c because there is no way to specify a unichar
literal -- you have to write an integer literal, such as '0x2603',
and then cast it to unichar.)

This does not change the behavior of %S, since there are fewer cases
where printing a literal Unicode *string* is necessary, but this could
easily be changed in the future.

<rdar://problem/11982013>

llvm-svn: 169400
2012-12-05 18:44:49 +00:00
Jordan Rose 598ec0992d Format strings: a character literal should be printed with %c, not %d.
The type of a character literal is 'int' in C, but if the user writes a
character /as/ a literal, we should assume they meant it to be a
character and not a numeric value, and thus offer %c as a correction
rather than %d.

There's a special case for multi-character literals (like 'MooV'), which
have implementation-defined value and usually cannot be printed with %c.
These still use %d as the suggestion.

In C++, the type of a character literal is 'char', and so this problem
doesn't exist.

<rdar://problem/12282316>

llvm-svn: 169398
2012-12-05 18:44:40 +00:00
Jordan Rose 6aaa87e0d2 Format strings: the correct conversion for 'char' is %c, not %d or %hhd.
We tried to account for 'uint8_t' by saying that /typedefs/ of 'char'
should be corrected as %hhd rather than %c, but the condition was wrong.

llvm-svn: 169397
2012-12-05 18:44:37 +00:00
Jordan Rose 614e72bec7 Make suggestions for mismatched enum arguments to printf/scanf.
llvm-svn: 157962
2012-06-04 22:49:02 +00:00
Jordan Rose 95341bf4d4 Add a test for '%@' suggestion for classes.
llvm-svn: 157718
2012-05-30 22:41:32 +00:00
Jordan Rose 68f6d3b1a6 Suggest '%@' for Objective-C objects in ObjC format strings.
llvm-svn: 157716
2012-05-30 21:53:13 +00:00