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cases where an explicit instantiation requires a definition; the
remainder of these checks will come with the implementation of
paragraph 4 of [temp.explicit].
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most of the unsafe boilerplate out of TypeLoc. Create a QualifiedLoc class
to represent the idea that we *might* start representing source locations
of qualifiers. Dealing with qualifiers explicitly like this also lets us
efficiently ignore them in all the concrete cases.
This should make it obvious and easy to add new TypeLoc subclasses.
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instantiations, since the requirements are too different from those
for template specializations. Simplify it slightly.
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focusing on the scope- and qualifier-related semantic requirements in
C++ [temp.explicit]p2.
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class templates the proper linkage.
Daniel, please look over the CodeGenModule bits.
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template, make sure to get the template that corresponds to *this*
declaration of the class template or specialization, rather than the
canonical specialization. Fixes PR5187.
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to a member operator template. We missed updating this call site when
adding support for function templates; bug exposed by a test for
PR5072.
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to merge two diagnostics.
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things, this means we get a note on the declaration of the incomplete type when it is used in an exception specification.
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Removes a FIXME.
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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.
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in SemaCXX/overloaded-operator.cpp.
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what we found when we looked into <blah>", where <blah> is a
DeclContext*. We can now format DeclContext*'s in nice ways, e.g.,
"namespace N", "the global namespace", "'class Foo'".
This is part of PR3990, but we're not quite there yet.
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specialization. This completes C++ [temp.expl.spec]!
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template as a specialization. For example, this occurs with:
template<typename T>
struct X {
template<typename U> struct Inner { /* ... */ };
};
template<> template<typename T>
struct X<int>::Inner {
T member;
};
We need to treat templates that are member specializations as special
in two contexts:
- When looking for a definition of a member template, we look
through the instantiation chain until we hit the primary template
*or a member specialization*. This allows us to distinguish
between the primary "Inner" definition and the X<int>::Inner
definition, above.
- When computing all of the levels of template arguments needed to
instantiate a member template, don't add template arguments
from contexts outside of the instantiation of a member
specialization, since the user has already manually substituted
those arguments.
Fix up the existing test for p18, which was actually wrong (but we
didn't diagnose it because of our poor handling of member
specializations of templates), and add a new test for member
specializations of templates.
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function templates.
This commit ensures that friend function templates are constructed as
FunctionTemplateDecls rather than partial FunctionDecls (as they
previously were). It then implements template instantiation for friend
function templates, injecting the friend function template only when
no previous declaration exists at the time of instantiation.
Oh, and make sure that explicit specialization declarations are not
friends.
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about the reason, rdar://7186119.
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that the scope in which it is being declared is complete. Also, when
instantiating a member class template's ClassTemplateDecl, be sure to
delay type creation so that the resulting type is dependent. Ick.
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that are declarations (rather than definitions). Also, be sure to set
the access specifiers properly when instantiating the declarations of
member function templates.
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conditions. Add a fixit to insert the parentheses. Also fix a very minor
possible memory leak in 'for' conditions.
Fixes PR 4876 and rdar://problem/7289172
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instantiation has already been required. To do so, keep track of the
point of instantiation for anything that can be instantiated.
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wip - To prune excessive reporting.
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user-defined type conversions, issue list of ambiguites in addition
to the diagnostic. So, clang now issues the following:
b.cpp:19:19: error: left hand operand to ->* must be a pointer to class compatible with the right hand operand, but is 'struct C1'
int i = c1->*pmf;
~~^
b.cpp:19:19: note: because of ambiguity in conversion of 'struct C1' to 'struct E *'
b.cpp:5:5: note: candidate function
operator E*();
^
b.cpp:11:5: note: candidate function
operator E*();
^
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Along the way, use RequireCompleteType when testing exception spec types.
Separate all the ugly spec stuff into its own file.
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assignment and initialization.
The exception specification of the assignee must be the same or a subset of the target. In addition, exception specifications on arguments and return types must be equivalent, but this is not implemented yet.
This currently produces two diagnostics for every invalid assignment/initialization, due to the diagnostic produced outside PerformImplicitConversion, e.g. in CheckSingleInitializer. I don't know how to suppress this; in any case I think it is the wrong place for a diagnostic, since there are other diagnostics produced inside the function. So I'm leaving it as it is for the moment.
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Split the various ambiguous result enumerators into their own enum. Tests
for most of C++ [namespace.qual].
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This will improve error messages. For
struct B;
B f();
void g() {
f();
}
We now get
t.cpp:6:3: error: calling 'f' with incomplete return type 'struct B'
f();
^~~
t.cpp:3:3: note: 'f' declared here
B f();
^
t.cpp:1:8: note: forward declaration of 'struct B'
struct B;
^
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- Filter out unnamed declarations
- Filter out declarations whose names are reserved for the
implementation (e.g., __bar, _Foo)
- Place OVERLOAD: or COMPLETION: at the beginning of each
code-completion result, so we can easily separate them from other
compilation results.
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users to
pass a LookupResult reference to lookup routines. Call out uses which assume a single
result.
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injected-class-name (e.g., when we're referring to other
specializations of the current class template). Make sure that we see
the template rather than the injected-class-name. Fixes PR4768.
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Now we produce things like:
bug1.cpp:21:11: error: use of overloaded operator '->*' is ambiguous
int i = c->*pmf; // expected-error {{use of overloaded operator '->*' is ambiguous}} \
~^ ~~~
bug1.cpp:21:11: note: built-in candidate operator ->* ('struct A volatile *', 'int const struct A::*')
bug1.cpp:21:11: note: built-in candidate operator ->* ('struct A volatile *', 'int restrict struct A::*')
...
Still need to look at an issue (indicated as FIXME in the test case).
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operator's types.
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I still don't like it but it is improvement over what we had.
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(compare was system dependent). Worked on Linux, failed on Mac OS (which caused the recently added testcase to fail on Linux).
- Sort results in testcase.
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