Commit Graph

14 Commits

Author SHA1 Message Date
Alex Lorenz ddd279b90d [Sema] Fix an assert-on-invalid by avoiding function template specialisation
deduction for invalid functions

The fabricated template parameters cause an assertion because their depth
is invalid.

rdar://34109988

Differential Revision: https://reviews.llvm.org/D37341

llvm-svn: 316778
2017-10-27 18:13:31 +00:00
Richard Smith 77e9e84a8e Don't mark a member as a member specialization until we know we're keeping the specialization.
This improves our behavior in a few ways:

 * We now guarantee that if a member is marked as being a member
   specialization, there will actually be a member specialization declaration
   somewhere on its redeclaration chain. This fixes a crash in modules builds
   where we would try to check that there was a visible declaration of the
   member specialization and be surprised to not find any declaration of it at
   all.

 * We don't set the source location of the in-class declaration of the member
   specialization to the out-of-line declaration's location until we have
   actually finished merging them. This fixes some very silly looking
   diagnostics, where we'd point a "previous declaration is here" note at the
   same declaration we're complaining about. Ideally we wouldn't mess with the
   prior declaration's location at all, but too much code assumes that the
   first declaration of an entity is a reasonable thing to use as an indication
   of where it was declared, and that's not really true for a member
   specialization unless we fake it like this.

llvm-svn: 302596
2017-05-09 23:02:10 +00:00
Richard Smith 650e5b28d2 Speculatively revert r295118 to see if it's what's causing the modules selfhost buildbots to fail.
llvm-svn: 295146
2017-02-15 03:29:24 +00:00
Richard Smith 1d5f95f52f Do not implicitly instantiate the definition of a class template specialization
that has been explicitly specialized!

We assume in various places that we can tell the template specialization kind
of a class type by looking at the declaration produced by TagType::getDecl.
That was previously not quite true: for an explicit specialization, we could
have first seen a template-id denoting the specialization (with a use that does
not trigger an implicit instantiation of the defintiion) and then seen the
first explicit specialization declaration. TagType::getDecl would previously
return an arbitrary declaration when called on a not-yet-defined class; it
now consistently returns the most recent declaration in that case.

llvm-svn: 295118
2017-02-14 23:27:44 +00:00
Richard Smith 64e033f9c4 Fix crash-on-invalid and name lookup when recovering from ~X::X() typo.
llvm-svn: 226067
2015-01-15 00:48:52 +00:00
Richard Smith 11a80dcb42 PR19340: If we see a declaration of a member of an unspecialized class template
that looks like it might be an explicit specialization, don't recover as an
explicit specialization (bypassing the check that would reject that).

llvm-svn: 206444
2014-04-17 03:52:20 +00:00
Richard Smith 3298368de9 PR18246: When performing template argument deduction to decide which template
is specialized by an explicit specialization, start from the first declaration
in case we've got a member of a class template (redeclarations might not number
the template parameters the same way).

Our recover here is still far from ideal.

llvm-svn: 197305
2013-12-14 03:18:05 +00:00
Richard Smith 5001ec9190 Add regression test for PR12331.
llvm-svn: 185453
2013-07-02 18:08:50 +00:00
Douglas Gregor 869853eea1 Instantiate class member template partial specialization declarations
in the order they occur within the class template, delaying
out-of-line member template partial specializations until after the
class has been fully instantiated. This fixes a regression introduced
by r118454 (itself a fix for PR8001).

llvm-svn: 118704
2010-11-10 19:44:59 +00:00
Jeffrey Yasskin 4e150f8d35 Fix some redundant errors by changing CXXScopeSpec::isSet calls into
isNotEmpty calls.

llvm-svn: 100722
2010-04-07 23:29:58 +00:00
John McCall 1f476a1783 Fix an assertion-on-error during tentative constructor parsing by
propagating error conditions out of the various annotate-me-a-snowflake
routines.  Generally (but not universally) removes redundant diagnostics
as well as, you know, not crashing on bad code.  On the other hand,
I have just signed myself up to fix fiddly parser errors for the next
week.  Again.

llvm-svn: 97221
2010-02-26 08:45:28 +00:00
Douglas Gregor 71ad477ab3 Do not try to instantiate invalid declarations. It's a recipe for
disaster. Fixes PR6161.

llvm-svn: 96371
2010-02-16 19:28:15 +00:00
Daniel Dunbar 8fbe78f6fc Update tests to use %clang_cc1 instead of 'clang-cc' or 'clang -cc1'.
- 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
2009-12-15 20:14:24 +00:00
Douglas Gregor 5013a7e42d When entering the scope of a declarator, make sure that the scope is
complete (or, possibly causing template instantiation).

Test this via some explicit specializations of member functions.

llvm-svn: 82732
2009-09-24 23:39:01 +00:00