Commit Graph

12 Commits

Author SHA1 Message Date
David Blaikie 6df859d859 Bound member function diagnostic - suggest no-args calls and note overload candidates
Still missing cases for templates, but this is a step in the right
direction. Also omits suggestions that would be ambiguous (eg: void
func(int = 0); + void func(float = 0); func;)

llvm-svn: 183173
2013-06-04 00:28:46 +00:00
David Blaikie aeef2ae8f9 Unpluralize -Wfoo-conversions warnings for consistency.
Err on the side of brevity and rename (while providing aliases for the original
name) -Wbool-conversions, -Wint-conversions, and -Wvector-conversions for
consistency with constant, literal, string, and sign conversion warnings. And
name the diagnostic groups explicitly while I'm here rather than rewriting the
string in the groups and sema td files.

Curiously, vector-conversion is not under -Wconversion. Perhaps it should be.

llvm-svn: 152776
2012-03-15 05:09:31 +00:00
Richard Trieu 553b2b2e5d Modify how the -verify flag works. Currently, the verification string and
diagnostic message are compared.  If either is a substring of the other, then
no error is given.  This gives rise to an unexpected case:

  // expect-error{{candidate function has different number of parameters}}

will match the following error messages from Clang:

  candidate function has different number of parameters (expected 1 but has 2)
  candidate function has different number of parameters

It will also match these other error messages:

  candidate function
  function has different number of parameters
  number of parameters

This patch will change so that the verification string must be a substring of
the diagnostic message before accepting.  Also, all the failing tests from this
change have been corrected.  Some stats from this cleanup:

87 - removed extra spaces around verification strings
70 - wording updates to diagnostics
40 - extra leading or trailing characters (typos, unmatched parens or quotes)
35 - diagnostic level was included (error:, warning:, or note:)
18 - flag name put in the warning (-Wprotocol)

llvm-svn: 146619
2011-12-15 00:38:15 +00:00
David Blaikie 10eb4b67d8 Add notes for suppressing and (if it's a zero-arg function returning bool) fixing the function-to-bool conversion warning.
llvm-svn: 146280
2011-12-09 21:42:37 +00:00
Lang Hames df5c121f8e Add a warning for implicit conversion from function literals (and static
methods) to bool. E.g.

void foo() {}
if (f) { ... // <- Warns here.
}

Only applies to non-weak functions, and does not apply if the function address
is taken explicitly with the addr-of operator.

llvm-svn: 145849
2011-12-05 20:49:50 +00:00
John McCall 4124c4924d Teach the ARC compiler to not require __bridge casts when
passing/receiving CF objects at +0 to/from Objective-C methods
or audited C functions.

llvm-svn: 142219
2011-10-17 18:40:02 +00:00
John McCall 50a2c2c19d Catch placeholder types in DefaultLvalueConversion
and DefaultFunctionArrayLvalueConversion.  To prevent
significant regression for should-this-be-a-call fixits,
and to repair some such regression from the introduction of
bound member placeholders, make those placeholder checks
try to build calls appropriately.  Harden the build-a-call
logic while we're at it.

llvm-svn: 141738
2011-10-11 23:14:30 +00:00
John McCall 0009fcc39e Make yet another placeholder type, this one marking that an expression is a bound
member function, i.e. something of the form 'x.f' where 'f' is a non-static
member function.  Diagnose this in the general case.  Some of the new diagnostics
are probably worse than the old ones, but we now get this right much more
universally, and there's certainly room for improvement in the diagnostics.

llvm-svn: 130239
2011-04-26 20:42:42 +00:00
John McCall 3aef3d8713 Simplify calling CheckPlaceholderExpr, converge on it in a few places,
and move a vector-splat check to follow l-value conversion.

llvm-svn: 129254
2011-04-10 19:13:55 +00:00
Chandler Carruth ffce245700 Fix a bug in how we were resolving the address of overloaded functions
when the resolution took place due to a single template specialization
being named with an explicit template argument list. In this case, the
"resolution" doesn't take into account the target type at all, and
therefore can take place for functions, static member functions, and
*non-static* member functions. The latter weren't being properly checked
and their proper form enforced in this scenario. We now do so.

The result of this last form slipping through was some confusing logic
in IsStandardConversion handling of these resolved address-of
expressions which eventually exploded in an assert. Simplify this logic
a bit and add some more aggressive asserts to catch improperly formed
expressions getting into this routine.

Finally add systematic testing of member functions, both static and
non-static, in the various forms they can take. One of these is
essentially PR9563, and this commit fixes the crash in that PR. However,
the diagnostics for this are still pretty terrible. We at least are now
accepting the correct constructs and rejecting the invalid ones rather
than accepting invalid or crashing as before.

llvm-svn: 128456
2011-03-29 08:08:18 +00:00
Douglas Gregor 0ec210bc88 Produce a diagnostic for unused overloaded expressions, from Faisal Vali!
llvm-svn: 127148
2011-03-07 02:05:23 +00:00
Douglas Gregor b491ed36b4 Handle the resolution of a reference to a function template (which
includes explicitly-specified template arguments) to a function
template specialization in cases where no deduction is performed or
deduction fails. Patch by Faisal Vali, fixes PR7505!

llvm-svn: 126048
2011-02-19 21:32:49 +00:00