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template specialization if there is no matching non-template function.
This exposed a couple of related bugs:
- we would sometimes substitute into a friend template instead of a
suitable non-friend declaration; this would now crash because we'd
decide the specialization of the friend is a redeclaration of itself
- ADL failed to properly handle the case where an invisible local
extern declaration redeclares an invisible friend
Both are fixed herein: in particular, we now never make invisible
friends or local extern declarations visible to name lookup unless
they are the only declaration of the entity. (We already mostly did
this for local extern declarations.)
llvm-svn: 350505
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24 tests have been updated for C++11 compatibility.
llvm-svn: 266387
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Unqualified templated constructors cannot be friended and our lack of a
diagnostic led to violated invariants. Instead, raise a diagnostic when
processing the friend declaration.
This fixes PR20251.
llvm-svn: 248953
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There was already an explicit check for that for the first decl. Move that
to a different place so that it's called for the following decls too. Also
don't randomly set the BitfieldSize ExprResult to true (this sets a pointer to
true internally).
Found by SLi's bot.
llvm-svn: 226306
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o Correct the handling of the restrictions on usage of cv-qualified and
ref-qualified function types.
o Fix a bug where such types were rejected in template type parameter default
arguments, due to such arguments not being treated as a template type arg
context.
o Remove the ExtWarn for usage of such types as template arguments; that was
a standard defect, not a GCC extension.
o Improve the wording and unify the code for diagnosing cv-qualifiers with the
code for diagnosing ref-qualifiers.
llvm-svn: 150244
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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
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llvm-svn: 116527
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therefore not creating ElaboratedTypes, which are still pretty-printed
with the written tag).
Most of these testcase changes were done by script, so don't feel too
sorry for my fingers.
llvm-svn: 98149
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- This is designed to make it obvious that %clang_cc1 is a "test variable"
which is substituted. It is '%clang_cc1' instead of '%clang -cc1' because it
can be useful to redefine what gets run as 'clang -cc1' (for example, to set
a default target).
llvm-svn: 91446
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unknown type name, e.g.,
foo::bar x;
when "bar" does not refer to a type in "foo".
With this change, the parser now calls into the action to perform
diagnostics and can try to recover by substituting in an appropriate
type. For example, this allows us to easily diagnose some missing
"typename" specifiers, which we now do:
test/SemaCXX/unknown-type-name.cpp:29:1: error: missing 'typename'
prior to dependent type name 'A<T>::type'
A<T>::type A<T>::f() { return type(); }
^~~~~~~~~~
typename
Fixes PR3990.
llvm-svn: 84053
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specifier
of any previous declaration in case we replace it in a class's declaration table.
Fixes bug 4858. This sort of thing makes me reconsider putting friend declarations in
declaration lists.
llvm-svn: 80750
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decl list, and remove some workarounds that were due to this. Thanks to Eli for
pointing this out and providing the test case.
llvm-svn: 80745
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declarations of same, introduce a single AST class and add appropriate bits
(encoded in the namespace) for whether a decl is "real" or not. Much hackery
about previously-declared / not-previously-declared, but it's essentially
mandated by the standard that friends alter lookup, and this is at least
fairly non-intrusive.
Refactor the Sema methods specific to friends for cleaner flow and less nesting.
Incidentally solve a few bugs, but I remain confident that we can put them back.
llvm-svn: 80353
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accurately. Prevents the assert from triggering incorrectly when friending
functions first declared in extern "C" contexts. Fixes bug 4757.
llvm-svn: 80016
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Permit a class to friend its class members in C++ 98, as long as extensions
are enabled (and even when they aren't, only give an extwarn about it).
llvm-svn: 78332
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llvm-svn: 78274
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