Commit Graph

19 Commits

Author SHA1 Message Date
Alex Lorenz 56fb6fef50 [Sema] Improve the error diagnostic for dot destructor calls on pointer objects
This commit improves the mismatched destructor type error by detecting when the
destructor call has used a '.' instead of a '->' on a pointer to the destructed
type. The diagnostic now suggests to use '->' instead of '.', and adds a fixit
where appropriate.

rdar://28766702

Differential Revision: https://reviews.llvm.org/D25817

llvm-svn: 292615
2017-01-20 15:38:58 +00:00
Eric Christopher 6e11073b3e Unify warnings/errors from "maybe you meant" to "did you mean".
llvm-svn: 233981
2015-04-02 22:10:06 +00:00
David Majnemer ced8bdf74a Sema: Parenthesized bound destructor member expressions can be called
We would wrongfully reject (a.~A)() in both the destructor and
pseudo-destructor cases.

This fixes PR22668.

llvm-svn: 230512
2015-02-25 17:36:15 +00:00
Richard Smith af41696bc4 Per [basic.lookup.classref]p3, in an expression of the form p->~type-name, the
type-name is looked up in the context of the complete postfix-expression. Don't
forget to pass the scope into this lookup when the type-name is a template-id;
it might name an alias template which can't be found within the class itself.

Bug spotted by Johannes Schaub on #llvm.

llvm-svn: 168011
2012-11-15 00:31:27 +00:00
David Blaikie 1d578782fa Support decltype in pseudo destructors and dependent destructor calls.
Reviewed by Eli Friedman.

llvm-svn: 146738
2011-12-16 16:03:09 +00:00
Douglas Gregor f39a8dd445 Don't crash when transforming an ill-formed pseudo-destructor
expression. Fixes PR11339.

llvm-svn: 144159
2011-11-09 02:19:47 +00:00
Douglas Gregor 4cf85a725a When clearing a LookupResult structure, clear out the naming class,
too. Fixes PR7900.

While I'm in this area, improve the diagnostic when the type being
destroyed doesn't match either of the types we found.

llvm-svn: 127041
2011-03-04 22:32:08 +00:00
John McCall b86a6b830e Allow pseudo-destructors to be called on qualified pointers. Patch by
Troy Straszheim!

llvm-svn: 105823
2010-06-11 17:36:40 +00:00
Douglas Gregor 0d5b0a1e5e ActOnPseudoDestructorExpr now performs all semantic analysis for
pseudo-destructor expressions, and builds the CXXPseudoDestructorExpr
node directly. Currently, this only affects pseudo-destructor
expressions when they are parsed, but not after template
instantiation. That's coming next...

Improve parsing of pseudo-destructor-names. When parsing the
nested-name-specifier and we hit the sequence of tokens X :: ~, query
the actual module to determine whether X is a type-name (in which case
the X :: is part of the pseudo-destructor-name but not the
nested-name-specifier) or not (in which case the X :: is part of the
nested-name-specifier). 

llvm-svn: 97058
2010-02-24 21:29:12 +00:00
Douglas Gregor 46841e1bd9 Implement crazy destructor name lookup semantics differently in
C++98/03 and C++0x, since the '0x semantics break valid C++98/03
code. This new mess is tracked by core issue 399, which is still
unresolved.

Fixes PR6358 and PR6359.

llvm-svn: 96836
2010-02-23 00:15:22 +00:00
Douglas Gregor 90d554ecb3 Implement support for parsing pseudo-destructor expression with a nested-name-specifier, e.g.,
typedef int Int;
  int *p;
  p->Int::~Int();

This weakens the invariant that the only types in nested-name-specifiers are tag types (restricted to class types in C++98/03). However, we weaken this invariant as little as possible, accepting arbitrary types in nested-name-specifiers only when we're in a member access expression that looks like a pseudo-destructor expression.

llvm-svn: 96743
2010-02-21 18:36:56 +00:00
Chandler Carruth 8f2548112e Commiting a revert from dgregor of a bit of destructor logic until we can
figure out how not to break lots of code using this. See PR6358 and PR6359 for
motivating examples. FIXME's left in the code and the test.

llvm-svn: 96733
2010-02-21 10:19:54 +00:00
Douglas Gregor fe17d2550b Improve parsing and instantiation of destructor names, so that we can
now cope with the destruction of types named as dependent templates,
e.g.,

  y->template Y<T>::~Y()

Nominally, we implement C++0x [basic.lookup.qual]p6. However, we don't
follow the letter of the standard here because that would fail to
parse

  template<typename T, typename U>
  X0<T, U>::~X0() { }

properly. The problem is captured in core issue 339, which gives some
(but not enough!) guidance. I expect to revisit this code when the
resolution of 339 is clear, and/or we start capturing better source
information for DeclarationNames.

Fixes PR6152.

llvm-svn: 96367
2010-02-16 19:09:40 +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 a25d65d1b6 Implement C++ [basic.lookup.classref]p3, which states how the type
name 'T' is looked up in the expression

  t.~T()

Previously, we weren't looking into the type of "t", and therefore
would fail when T actually referred to an injected-class-name. Fixes
PR5530.

llvm-svn: 89493
2009-11-20 22:03:38 +00:00
Daniel Dunbar 8b57697954 Eliminate &&s in tests.
- 'for i in $(find . -type f); do sed -e 's#\(RUN:.*[^ ]\) *&& *$#\1#g' $i | FileUpdate $i; done', for the curious.

llvm-svn: 86430
2009-11-08 01:45:36 +00:00
Douglas Gregor bddb73fa1d If a destructor is referenced or a pseudo-destructor expression is
formed without a trailing '(', diagnose the error (these expressions
must be immediately called), emit a fix-it hint, and fix the code.

llvm-svn: 81015
2009-09-04 18:29:40 +00:00
Douglas Gregor ad8a336b40 Implement AST, semantics, and CodeGen for C++ pseudo-destructor
expressions, e.g.,

  p->~T()

when p is a pointer to a scalar type. 

We don't currently diagnose errors when pseudo-destructor expressions
are used in any way other than by forming a call.

llvm-svn: 81009
2009-09-04 17:36:40 +00:00
Anders Carlsson c24fc2949e More support for pseudo dtors.
llvm-svn: 80129
2009-08-26 19:22:42 +00:00