Commit Graph

151 Commits

Author SHA1 Message Date
Sebastian Redl a2b5e31cb1 Diagnose declarations that don't declare anything, and fix PR3020.
Examples:
int;
typedef int;

llvm-svn: 61454
2008-12-28 15:28:59 +00:00
Douglas Gregor 1dc9826a46 Add support for out-of-line definitions of conversion functions and member operators
llvm-svn: 61442
2008-12-26 15:00:45 +00:00
Douglas Gregor 583540360c Correct the order in which we cope with end-of-class-definition
semantics and improve our handling of default arguments. Specifically,
we follow this order:

  - As soon as the see the '}' in the class definition, the class is
  complete and we add any implicit declarations (default constructor,
  copy constructor, etc.) to the class.
  - If there are any default function arguments, parse them
  - If there were any inline member function definitions, parse them

As part of this change, we now keep track of the the fact that we've
seen unparsed default function arguments within the AST. See the new
ParmVarDecl::hasUnparsedDefaultArg member. This allows us to properly
cope with calls inside default function arguments to other functions
where we're making use of the default arguments.

Made some C++ error messages regarding failed initializations more
specific. 

llvm-svn: 61406
2008-12-24 00:01:03 +00:00
Sebastian Redl ccd251b88f Merge pr-3188.cpp into constructor.cpp.
llvm-svn: 61370
2008-12-23 16:41:32 +00:00
Sebastian Redl 45f11a9b05 Guard against the return of PR3188
llvm-svn: 61348
2008-12-22 21:43:13 +00:00
Sebastian Redl 9b244a8797 Full AST support and better Sema support for C++ try-catch.
llvm-svn: 61346
2008-12-22 21:35:02 +00:00
Sebastian Redl 54c04d4700 Partial AST and Sema support for C++ try-catch.
llvm-svn: 61337
2008-12-22 19:15:10 +00:00
Douglas Gregor 97fd6e24c4 Add support for calls to overloaded member functions. Things to note:
- Overloading has to cope with having both static and non-static
    member functions in the overload set.
  - The call may or may not have an implicit object argument,
    depending on the syntax (x.f() vs. f()) and the context (static
    vs. non-static member function).
  - We now generate MemberExprs for implicit member access expression.
  - We now cope with mutable whenever we're building MemberExprs.

llvm-svn: 61329
2008-12-22 05:46:06 +00:00
Anders Carlsson 39def3adc8 Add codegen support for __null
llvm-svn: 61314
2008-12-21 22:39:40 +00:00
Douglas Gregor 2eedc3aa1c Add support for member references (E1.E2, E1->E2) with C++ semantics,
which can refer to static data members, enumerators, and member
functions as well as to non-static data members.

Implement correct lvalue computation for member references in C++. 
Compute the result type of non-static data members of reference type properly.

llvm-svn: 61294
2008-12-20 23:49:58 +00:00
Sebastian Redl e10c2c32af Implement checks for bool in increment and decrement.
llvm-svn: 61275
2008-12-20 09:35:34 +00:00
Douglas Gregor 55ad91fecb Ultrasimplistic sketch for the parsing of C++ template-ids. This won't
become useful or correct until we (1) parse template arguments
correctly, (2) have some way to turn template-ids into types,
declarators, etc., and (3) have a real representation of templates.

llvm-svn: 61208
2008-12-18 19:37:40 +00:00
Chris Lattner 0cb00d66ea This is valid in C++.
void foo() { return foo(); }

llvm-svn: 61188
2008-12-18 02:03:48 +00:00
Douglas Gregor 19b8c4fffa Delay semantic analysis of the C++ names casts when the subexpression is type-dependent or the destination type is dependent.
llvm-svn: 61165
2008-12-17 22:52:20 +00:00
Douglas Gregor ec8806e8ec Removed the warning
warning: statement was disambiguated as declaration

because it is currently firing in cases where the declaration would
not actually parse as a statement. We'd love to bring this warning
back if we can make it more accurate.

llvm-svn: 61137
2008-12-17 16:19:15 +00:00
Nuno Lopes 5773a1be41 fix PR 3222: allow one to get the address of a global function in C++
llvm-svn: 61111
2008-12-16 22:58:26 +00:00
Douglas Gregor 4d87df5853 Delay parsing of default arguments of member functions until the class
is completely defined (C++ [class.mem]p2).

Reverse the order in which we process the definitions of member
functions specified inline. This way, we'll get diagnostics in the
order in which the member functions were declared in the class.

llvm-svn: 61103
2008-12-16 21:30:33 +00:00
Douglas Gregor 195002917e Partial fix for qualified name lookup, such that the lookup of N in
N::X only skips those entities specified in C++ [basic.lookup.qual]p1.

Note that both EDG and GCC currently get this wrong. EDG has confirmed
that the bug will be fixed in a future version.

llvm-svn: 61079
2008-12-16 06:37:47 +00:00
Douglas Gregor 29e174cc58 Make name lookup when we're inside a declarator's scope, such as ClassName::func, work with the new unqualified name lookup code. Test it with default arguments in out-of-line member definitions
llvm-svn: 61060
2008-12-16 00:38:16 +00:00
Douglas Gregor dd12c786a0 Added a test for default arguments added to out-of-line member
functions. They work except that name lookup within the default
arguments needs to be deferred until the class definition is complete
(see FIXME in the test).

llvm-svn: 61059
2008-12-16 00:08:34 +00:00
Douglas Gregor ad590506a7 Diagnose erroneous uses of out-of-line member definitions and scope
specifiers. Specifically: 
  * Determine when an out-of-line function definition does not match
    any declaration within the class or namespace (including coping
    with overloaded functions).
  * Complain about typedefs and parameters that have scope specifiers.
  * Complain about out-of-line declarations that aren't also
  definitions.
  * Complain about non-static data members being declared out-of-line.
  * Allow cv-qualifiers on out-of-line member function definitions.

llvm-svn: 61058
2008-12-15 23:53:10 +00:00
Douglas Gregor 1349b457ee Place constructors and destructors into the DeclContext of the class,
just like all other members, and remove the special variables in
CXXRecordDecl to store them. This eliminates a lot of special-case
code for constructors and destructors, including
ActOnConstructor/ActOnDeclarator and special lookup rules in
LookupDecl. The result is far more uniform and manageable.

Diagnose the redeclaration of member functions.

llvm-svn: 61048
2008-12-15 21:24:18 +00:00
Douglas Gregor 4287b37389 Enable out-of-line definitions of C++ constructors and destructors
llvm-svn: 60947
2008-12-12 08:25:50 +00:00
Douglas Gregor b9d2380204 Add test of enumerator types
llvm-svn: 60940
2008-12-12 07:27:10 +00:00
Douglas Gregor 1d248c53ab In C++, set the type of each of the enumerators in an enumeration to
the type of the enumeration once the enumeration has been defined.

Fix the overloading test-case to properly create enums that promote
the way we want them to.

Implement C++0x promotions from enumeration types to long
long/unsigned long long. We're using these promotions in Carbon.h
(since long long is a common extension).

Fixes PR clang/2954: http://llvm.org/bugs/show_bug.cgi?id=2954

llvm-svn: 60917
2008-12-12 02:00:36 +00:00
Douglas Gregor 91f84216f7 Unifies the name-lookup mechanisms used in various parts of the AST
and separates lexical name lookup from qualified name lookup. In
particular:
  * Make DeclContext the central data structure for storing and
    looking up declarations within existing declarations, e.g., members
    of structs/unions/classes, enumerators in C++0x enums, members of
    C++ namespaces, and (later) members of Objective-C
    interfaces/implementations. DeclContext uses a lazily-constructed
    data structure optimized for fast lookup (array for small contexts,
    hash table for larger contexts). 

  * Implement C++ qualified name lookup in terms of lookup into
    DeclContext.

  * Implement C++ unqualified name lookup in terms of
    qualified+unqualified name lookup (since unqualified lookup is not
    purely lexical in C++!)

  * Limit the use of the chains of declarations stored in
    IdentifierInfo to those names declared lexically.

  * Eliminate CXXFieldDecl, collapsing its behavior into
    FieldDecl. (FieldDecl is now a ScopedDecl).

  * Make RecordDecl into a DeclContext and eliminates its
    Members/NumMembers fields (since one can just iterate through the
    DeclContext to get the fields).

llvm-svn: 60878
2008-12-11 16:49:14 +00:00
Douglas Gregor 85970ca84c Added a warning when referencing an if's condition variable in the
"else" clause, e.g.,

  if (int X = foo()) {
  } else {
    if (X) { // warning: X is always zero in this context
    }
  }

Fixes rdar://6425550 and lets me think about something other than
DeclContext.

llvm-svn: 60858
2008-12-10 23:01:14 +00:00
Douglas Gregor 9aa8b55d10 Fix PR clang/3175: CheckAddressOfOperand does not handle references to class vars
llvm-svn: 60849
2008-12-10 21:26:49 +00:00
Douglas Gregor b0846b0f51 Add support for calls to dependent names within templates, e.g.,
template<typename T> void f(T x) {
    g(x); // g is a dependent name, so don't even bother to look it up
    g(); // error: g is not a dependent name
  }

Note that when we see "g(", we build a CXXDependentNameExpr. However,
if none of the call arguments are type-dependent, we will force the
resolution of the name "g" and replace the CXXDependentNameExpr with
its result.

GCC actually produces a nice error message when you make this
mistake, and even offers to compile your code with -fpermissive. I'll
do the former next, but I don't plan to do the latter.

llvm-svn: 60618
2008-12-06 00:22:45 +00:00
Douglas Gregor 4619e439b6 Introduce basic support for dependent types, type-dependent
expressions, and value-dependent expressions. This permits us to parse
some template definitions.

This is not a complete solution; we're missing type- and
value-dependent computations for most of the expression types, and
we're missing checks for dependent types and type-dependent
expressions throughout Sema.

llvm-svn: 60615
2008-12-05 23:32:09 +00:00
Chris Lattner 2ca529ce61 instead of forcing blocks on by default, make them default to off, but let
specific targets default them to on.  Default blocks to on on 10.6 and later.
Add a -fblocks option that allows the user to override the target's default.
Use -fblocks in the various testcases that use blocks.

llvm-svn: 60563
2008-12-04 23:20:07 +00:00
Sebastian Redl 33a3101d43 Code cleanup in new handling.
llvm-svn: 60557
2008-12-04 22:20:51 +00:00
Sebastian Redl f84512a360 Fix some diagnostics and enhance test cases. Now tests member new and ambiguous overloads.
llvm-svn: 60542
2008-12-04 17:24:46 +00:00
Sebastian Redl faf6808e7a Overload resolution for the operator new function. Member version is still untested.
llvm-svn: 60503
2008-12-03 20:26:15 +00:00
Sebastian Redl db36b9b962 Make the parser handle ::new and ::delete correctly.
llvm-svn: 60421
2008-12-02 16:35:44 +00:00
Sebastian Redl 351bb78a10 Handle new by passing the Declaration to the Action, not a processed type.
llvm-svn: 60413
2008-12-02 14:43:59 +00:00
Douglas Gregor dce30aa0f9 Fix RUN line
llvm-svn: 60372
2008-12-01 21:17:52 +00:00
Douglas Gregor e912266bdb Test blocks in C++ mode
llvm-svn: 60367
2008-12-01 19:48:06 +00:00
Douglas Gregor 2dc61144cd Make sure __null test runs in both 32- and 64-bit. Thanks Anders
llvm-svn: 60360
2008-12-01 18:05:11 +00:00
Douglas Gregor 356513d7d0 Parse the exception-specification throw(...), a Microsoft extension
llvm-svn: 60359
2008-12-01 18:00:20 +00:00
Douglas Gregor dc37c81448 Add the test for __null
llvm-svn: 60357
2008-12-01 17:31:21 +00:00
Douglas Gregor 9ccbcdfb27 Test conversion from apointer to incomplete type to void* in C++
llvm-svn: 60131
2008-11-26 23:33:36 +00:00
Douglas Gregor 3ff3cf5f21 Test another error message, make sure to verify C++ new and delete tests
llvm-svn: 60007
2008-11-25 04:08:05 +00:00
Chris Lattner 1e5665e6be Change a whole lot of diagnostics to take QualType's directly
instead of converting them to strings first.  This also fixes a
bunch of minor inconsistencies in the diagnostics emitted by clang
and adds a bunch of FIXME's to DiagnosticKinds.def.

llvm-svn: 59948
2008-11-24 06:25:27 +00:00
Chris Lattner 03c4041cb5 make the 'to match this' diagnostic a note.
llvm-svn: 59921
2008-11-23 23:17:07 +00:00
Chris Lattner 0369c57ac6 Make all the 'redefinition' diagnostics more consistent, and make the
"previously defined here" diagnostics all notes.

llvm-svn: 59920
2008-11-23 23:12:31 +00:00
Chris Lattner e3d20d9545 Convert IdentifierInfo's to be printed the same as DeclarationNames
with implicit quotes around them.  This has a bunch of follow-on 
effects and requires tweaking to a whole lot of code.  This causes
a regression in two tests (xfailed) by causing it to emit things like:

  Line 10: duplicate interface declaration for category 'MyClass1' ('Category1')

instead of:

  Line 10: duplicate interface declaration for category 'MyClass1(Category1)'

I will fix this in a follow-up commit.

As part of this, I had to start switching stuff to use ->getDeclName() instead
of Decl::getName() for consistency.  This is good, but I was planning to do this
as an independent patch.  There will be several follow-on patches
to clean up some of the mess, but this patch is already too big.

llvm-svn: 59917
2008-11-23 21:45:46 +00:00
Chris Lattner f7e69d5a77 add support for inserting a DeclarationName into a diagnostic directly
without calling getAsString().  This implicitly puts quotes around the
name, so diagnostics need to be tweaked to accommodate this.

llvm-svn: 59916
2008-11-23 20:28:15 +00:00
Sebastian Redl 632ab20e1e Fix test cases broken by quote normalization in diagnostics.
llvm-svn: 59888
2008-11-22 22:39:41 +00:00
Sebastian Redl 15b02d2e62 Implement a %plural modifier for complex plural forms in diagnostics. Use it in the overload diagnostics.
llvm-svn: 59871
2008-11-22 13:44:36 +00:00