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path: root/lib/Sema/SemaInit.cpp
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2012-04-19Add missing -Wc++98-compat warnings for initializer list initializations whichRichard Smith
initialize references, create std::initializer_list objects, or call constructors. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@155105 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-10When we determine that an initialization sequence failed due to anDouglas Gregor
incomplete type, keep track of the actual type that was incomplete. Otherwise, we might fail to produce a diagnostic. Fixes PR12498. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154432 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-07Fix several problems with protected access control:John McCall
- The [class.protected] restriction is non-trivial for any instance member, even if the access lacks an object (for example, if it's a pointer-to-member constant). In this case, it is equivalent to requiring the naming class to equal the context class. - The [class.protected] restriction applies to accesses to constructors and destructors. A protected constructor or destructor can only be used to create or destroy a base subobject, as a direct result. - Several places were dropping or misapplying object information. The standard could really be much clearer about what the object type is supposed to be in some of these accesses. Usually it's easy enough to find a reasonable answer, but still, the standard makes a very confident statement about accesses to instance members only being possible in either pointer-to-member literals or member access expressions, which just completely ignores concepts like constructor and destructor calls, using declarations, unevaluated field references, etc. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154248 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-04Dependent-sequence initialization of a single element can be directDouglas Gregor
list-initialization. Loosen an over-eager assertion to fix PR12453. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@153995 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-02Silence -Wunused-variable in -Asserts buildMatt Beaumont-Gay
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@153885 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-01Properly handle explicit constructors in list-initialization. Fixes PR12120.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@153849 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-30PR10217: Provide diagnostics explaining why an implicitly-deleted specialRichard Smith
member function is deleted. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@153773 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-23Teach APValue printer to print boolean 0 and 1 as 'false' and 'true'. Fix upRichard Smith
some calling code to actually pass in a non-null type, to avoid a crash. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@153358 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-11Unify naming of LangOptions variable/get function across the Clang stack ↵David Blaikie
(Lex to AST). The member variable is always "LangOpts" and the member function is always "getLangOpts". Reviewed by Chris Lattner git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152536 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-10Remove BlockDeclRefExpr and introduce a bit on DeclRefExpr toJohn McCall
track whether the referenced declaration comes from an enclosing local context. I'm amenable to suggestions about the exact meaning of this bit. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152491 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-09[AST/Sema/libclang] Replace getSourceRange().getBegin() with getLocStart().Daniel Dunbar
- getSourceRange().getBegin() is about as awesome a pattern as .copy().size(). I already killed the hot paths so this doesn't seem to impact performance on my tests-of-the-day, but it is a much more sensible (and shorter) pattern. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152419 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-08Turn explicit construction of temporaries using initializer list syntax into ↵Sebastian Redl
CXXTemporaryObjectExprs, not just CXXConstructExprs, which have a worrying tendency to vanish. Fixes PR12167. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152340 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-07Be smarter in discovering list-initialization of temporaries. Fixes PR12182.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152231 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-05If the element type of an initializer list has a destructor, make sure we ↵Sebastian Redl
check it. Fixes PR12178. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152048 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-29Tentatively fix PR12117. The test case from the bug now passes, and all ↵Sebastian Redl
existing tests still pass, but there may still be corner cases. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151716 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-25ArrayRef'ize various functions in the AST/Parser/Sema.Ahmed Charles
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151447 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-24Implement C++11 [over.match.copy]p1b2, which allows the use ofDouglas Gregor
explicit conversion functions to initialize the argument to a copy/move constructor that itself is the subject of direct initialization. Since we don't have that much context in overload resolution, we end up threading more flags :(. Fixes <rdar://problem/10903741> / PR10456. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151409 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-24Sink variable into assertMatt Beaumont-Gay
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151356 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-24Kill a spurious use of hasTrivialDefaultConstructor()Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151353 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-23Replace the std::map in the init list checker with a DenseMap to reduce ↵Benjamin Kramer
malloc thrashing. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151254 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-23Try to handle qualifiers more consistently for array InitListExprs. Fixes ↵Eli Friedman
<rdar://problem/10907510>, and makes the ASTs a bit more self-consistent. (I've chosen to keep the qualifiers, but it isn't a strong preference; if anyone prefers removing them, please yell.) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151229 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-19Add a testcase for using objects with list-constructors, and fix a Sema ↵Sebastian Redl
crash by repeating an old hack. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150925 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-19Fix a crash for nested initializer list initialization. Still does the wrong ↵Sebastian Redl
thing in CodeGen, in that it never destructs anything. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150922 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-17Basic code generation support for std::initializer_list.Sebastian Redl
We now generate temporary arrays to back std::initializer_list objects initialized with braces. The initializer_list is then made to point at the array. We support both ptr+size and start+end forms, although the latter is untested. Array lifetime is correct for temporary std::initializer_lists (e.g. call arguments) and local variables. It is untested for new expressions and member initializers. Things left to do: Massively increase the amount of testing. I need to write tests for start+end init lists, temporary objects created as a side effect of initializing init list objects, new expressions, member initialization, creation of temporary objects (e.g. std::vector) for initializer lists, and probably more. Get lifetime "right" for member initializers and new expressions. Not that either are very useful. Implement list-initialization of array new expressions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150803 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-15Support GCC's bug^Wextension allowing class array members to be initalized by aRichard Smith
parenthesized braced-init-list in the base/member initialization list. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150625 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-15When overload resolution picks an implicitly-deleted special memberDouglas Gregor
function, provide a specialized diagnostic that indicates the kind of special member function (default constructor, copy assignment operator, etc.) and that it was implicitly deleted. Add a hook where we can provide more detailed information later. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150611 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-15Introduce a new initialization entity for lambda captures, andDouglas Gregor
specialize location information and diagnostics for this entity. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150588 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-14PR11650: Implement resolution of core issue 1301. Value initialization can't beRichard Smith
used to construct an object of union type with a deleted default constructor (plus fixes for some related value-initialization corner cases). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150502 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-12Change the way we store initialization kinds so that all direct inits can ↵Sebastian Redl
distinguish between list and parens form. This allows us to correctly diagnose the last test cases from litb. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150343 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-12Employ DirectList initialized entities to properly sort through some ↵Sebastian Redl
initialization edge cases. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150342 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-11Represent C++ direct initializers as ParenListExprs before semantic analysisSebastian Redl
instead of having a special-purpose function. - ActOnCXXDirectInitializer, which was mostly duplication of AddInitializerToDecl (leading e.g. to PR10620, which Eli fixed a few days ago), is dropped completely. - MultiInitializer, which was an ugly hack I added, is dropped again. - We now have the infrastructure in place to distinguish between int x = {1}; int x({1}); int x{1}; -- VarDecl now has getInitStyle(), which indicates which of the above was used. -- CXXConstructExpr now has a flag to indicate that it represents list- initialization, although this is not yet used. - InstantiateInitializer was renamed to SubstInitializer and simplified. - ActOnParenOrParenListExpr has been replaced by ActOnParenListExpr, which always produces a ParenListExpr. Placed that so far failed to convert that back to a ParenExpr containing comma operators have been fixed. I'm pretty sure I could have made a crashing test case before this. The end result is a (I hope) considerably cleaner design of initializers. More importantly, the fact that I can now distinguish between the various initialization kinds means that I can get the tricky generalized initializer test cases Johannes Schaub supplied to work. (This is not yet done.) This commit passed self-host, with the resulting compiler passing the tests. I hope it doesn't break more complicated code. It's a pretty big change, but one that I feel is necessary. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150318 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-11Implement core issue 5: a temporary created for copy-initialization has aRichard Smith
cv-unqualified type. This is essential in order to allow move-only objects of const-qualified types to be copy-initialized via a converting constructor. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150309 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-09Switching to using dyn_cast_or_null, and fixing line endings in the test case.Aaron Ballman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150209 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-09Attempting to initialize a union member that does not exist no longer crashes.Aaron Ballman
Patch by Remi Gacogne git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150144 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-05Basic: import SmallString<> into clang namespaceDylan Noblesmith
(I was going to fix the TODO about DenseMap too, but that would break self-host right now. See PR11922.) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149799 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-04A useful approximation of initializer list constructors.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149792 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-04Factor out the actual overload resolution from TryConstructorInitialization, ↵Sebastian Redl
since it needs to be used again for list constructor resolution. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149791 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-04Don't unwrap initializer lists before calling TryConstructorInitialization, ↵Sebastian Redl
instead doing a little more work inside. This should make finding initializer list constructors easier, as well as fix one place where the ({}) vs {} issue was probably poorly handled. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149790 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-04Move a method from IdentifierTable.h out of line and remove the SmallString ↵Benjamin Kramer
include. Fix all the transitive include users. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149783 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-04In C++11 mode, when an integral constant expression is desired and we have aRichard Smith
value of class type, look for a unique conversion operator converting to integral or unscoped enumeration type and use that. Implements [expr.const]p5. Sema::VerifyIntegerConstantExpression now performs the conversion and returns the converted result. Some important callers of Expr::isIntegralConstantExpr have been switched over to using it (including all of those required for C++11 conformance); this switch brings a side-benefit of improved diagnostics and, in several cases, simpler code. However, some language extensions and attributes have not been moved across and will not perform implicit conversions on constant expressions of literal class type where an ICE is required. In passing, fix static_assert to perform a contextual conversion to bool on its argument. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149776 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-02Split Sema::MarkDeclarationReferenced into multiple functions; the ↵Eli Friedman
additional entry points are needed to implement C++11 odr-use marking correctly. No functional change in this patch; I'll actually make the change which fixes the odr-use marking in a followup patch. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149586 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-31Make the callback object to Sema::CorrectTypo mandatory.Kaelyn Uhrain
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149451 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-23Downgrade C++11 narrowing conversion errors to warnings default-mappedDouglas Gregor
to an error, so that users can turn them off if necessary. Note that this does *not* change the behavior of in a SFINAE context, where we still flag an error even if the warning is disabled. This matches GCC's behavior. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148701 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-18constexpr: converted constant expression handling for enumerator values, caseRichard Smith
values and non-type template arguments of integral and enumeration types. This change causes some legal C++98 code to no longer compile in C++11 mode, by enforcing the C++11 rule that narrowing integral conversions are not permitted in the final implicit conversion sequence for the above cases. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148439 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-18Move narrowing conversion detection code from SemaInit to SemaOverload, readyRichard Smith
for it to be used in converted constant expression checking, and fix a couple of issues: - Conversion operators implicitly invoked prior to the narrowing conversion were not being correctly handled when determining whether a constant value was narrowed. - For conversions from floating-point to integral types, the diagnostic text incorrectly always claimed that the source expression was not a constant expression. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148381 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-17Sema support for initialization of std::initializer_list from initializer lists.Sebastian Redl
This does not yet support CodeGen. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148349 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-17Re-add an over-zealously removed break.David Blaikie
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148296 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-17Remove unreachable code in Clang. (replace with llvm_unreachable where ↵David Blaikie
appropriate or when GCC requires it) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148292 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-17Remove unnecessary default cases in switches over enums.David Blaikie
This allows -Wswitch-enum to find switches that need updating when these enums are modified. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148281 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-12Convert SemaInit.cpp to pass a callback object to CorrectTypo.Kaelyn Uhrain
And once again improve the typo correction results in certain situations just by moving the existing checks on the correction. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148037 91177308-0d34-0410-b5e6-96231b3b80d8
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