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path: root/lib/Sema/SemaInit.cpp
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2010-01-31Rework base and member initialization in constructors, with severalDouglas Gregor
(necessarily simultaneous) changes: - CXXBaseOrMemberInitializer now contains only a single initializer rather than a set of initialiation arguments + a constructor. The single initializer covers all aspects of initialization, including constructor calls as necessary but also cleanup of temporaries created by the initializer (which we never handled before!). - Rework + simplify code generation for CXXBaseOrMemberInitializers, since we can now just emit the initializer as an initializer. - Switched base and member initialization over to the new initialization code (InitializationSequence), so that it - Improved diagnostics for the new initialization code when initializing bases and members, to match the diagnostics produced by the previous (special-purpose) code. - Simplify the representation of type-checked constructor initializers in templates; instead of keeping the fully-type-checked AST, which is rather hard to undo at template instantiation time, throw away the type-checked AST and store the raw expressions in the AST. This simplifies instantiation, but loses a little but of information in the AST. - When type-checking implicit base or member initializers within a dependent context, don't add the generated initializers into the AST, because they'll look like they were explicit. - Record in CXXConstructExpr when the constructor call is to initialize a base class, so that CodeGen does not have to infer it from context. This ensures that we call the right kind of constructor. There are also a few "opportunity" fixes here that were needed to not regress, for example: - Diagnose default-initialization of a const-qualified class that does not have a user-declared default constructor. We had this diagnostic specifically for bases and members, but missed it for variables. That's fixed now. - When defining the implicit constructors, destructor, and copy-assignment operator, set the CurContext to that constructor when we're defining the body. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@94952 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-30Eliminate yet another old-school PerformCopyInitialization.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@94874 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-29Fix reference-binding when we have a reference to const volatile type;Douglas Gregor
previously, we were allowing this to bind to a temporary. Now, we don't; add test-cases and improve diagnostics. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@94831 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-29Fix reference binding of const lvalue references to bit-fields, whichDouglas Gregor
requires a temporary. Previously, we were building an initialization sequence that bound to the bit-field as if it were a real lvalue. Note that we previously (and still) diagnose binding of non-const references to bit-fields, as we should. There's no real way to test that this code is correct, since reference binding does not *currently* have any representation in the AST. This fix should make it easier for that to happen, so I've verified this fix with... Added InitializationSequence::dump(), to print an initialization sequence for debugging purposes. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@94826 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-29Simplify InitListChecker::CheckReferenceTypeAnders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@94793 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-26Pass access specifiers around in overload resolution.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@94485 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-25Code simplification; this should have no visible effects.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@94427 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-24Use new initialization code when dealing with [dcl.init.aggr]p12. This fixes ↵Anders Carlsson
the bug where array elements and member initializers weren't copied correctly. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@94340 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-23Change all InitializedEntity pointers over to be references.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@94335 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-23Start passing InitializedEntity to CheckDesignatedInitializer.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@94334 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-23More init work, adding more entity parameters.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@94332 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-23Use the new init code for member subobjects.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@94329 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-23Switch some array initialization over to the new init code.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@94327 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-23Baby steps towards migrating the InitListChecker over to the new ↵Anders Carlsson
initialization code. Pass an InitializedEntity pointer through to most init checker functions. Right now, it's ignored everywhere except when initializing vectors in C++. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@94325 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-23When an InitializedEntity is passed to CheckSingleInitializer, call the new ↵Anders Carlsson
Sema::PerformCopyInitialization overload. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@94324 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-23Change CheckSingleInitializer to take/return OwningExprResults instead. No ↵Anders Carlsson
functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@94316 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-23Separate EK_ArrayOrVectorElement into EK_ArrayElement and EK_VectorElement; ↵Anders Carlsson
arrays and vectors are pretty different beasts in C++. Doug, please review/comment. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@94279 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-20Give UnresolvedSet the ability to store access specifiers for each declaration.John McCall
Change LookupResult to use UnresolvedSet. Also extract UnresolvedSet into its own header and make it templated over an inline capacity. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@93959 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-12Fix the CodeGen half of PR5911 by changing reference initialization toChandler Carruth
correctly look through arrays to see cv-qualifiers. Also enhances the routine for doing this to preserve more type sugaring for diagnostics. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@93252 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-12So I was sitting around, trying vainly to think of something to commit, and thenJohn McCall
I said to myself, self, why don't you go add a couple of parameters to a method and then fail to use them, and I thought that sounded like a pretty good idea, so I did it. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@93233 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-12Introduce a specific representation for the ambiguous implicit conversionJohn McCall
sequence. Lots of small relevant changes. Fixes some serious problems with ambiguous conversions; also possibly improves associated diagnostics. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@93214 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-08Change the printing of OR_Deleted overload results to print all the candidates,John McCall
not just the viable ones. This is reasonable because the most common use of deleted functions is to exclude some implicit conversion during calls; users therefore will want to figure out why some other options were excluded. Started sorting overload results. Right now it just sorts by location in the translation unit (after putting viable functions first), but we can do better than that. Changed bool OnlyViable parameter to PrintOverloadCandidates to an enum for better self-documentation. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@92990 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-07Whenever we emit a typo-correction diagnostic, also emit a noteDouglas Gregor
pointing to the declaration that we found that has that name (if it is unique). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@92877 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-06Move the allocation of designators in DesignatedInitExpr to theDouglas Gregor
ASTContext. Fixes <rdar://problem/7495428>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@92867 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-01Typo correction for C99 designated field initializers, e.g.,Douglas Gregor
test/FixIt/typo.c:19:4: error: field designator 'bunds' does not refer to any field in type 'struct Window'; did you mean 'bounds'? .bunds. ^~~~~ bounds git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@92376 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-22Switch parameter-passing for calls via function pointers (where weDouglas Gregor
don't have a FunctionDecl) over to InitializationSequence. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91906 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-22Switch InitializedEntity from TypeLoc down to just QualTypes, since we don't ↵Douglas Gregor
use the location information but we did spend a bunch of time building faked-up TypeLocs git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91905 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-22Switch initialization of parameters in a call over toDouglas Gregor
InitializationSequence (when a FunctionDecl is present). This required a few small fixes to initialization sequences: - Make sure to use the adjusted parameter type for initialization of function parameters. - Implement transparent union calling semantics in C git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91902 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-22Zap CheckInitializerTypes.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91884 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-22Switch compound literals over to InitializationSequence.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91882 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-22Switch file-scope assignment initialization over to InitializationSequence.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91881 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-22Eliminate the ASTContext argument to CXXConstructorDecl::isCopyConstructor, ↵Douglas Gregor
since the context is available in the Decl git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91862 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-22When filling in value initializations within an initializer list, beDouglas Gregor
sure to fill in the initialized member of a union when a member was explicitly designated. Fixes PR5843. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91858 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-20Fix review comment; no visible change.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91797 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-20Switch default-initialization of variables of class type (or array thereof) ↵Douglas Gregor
over to InitializationSequence. I could swear that this fixes a PR somewhere, but I couldn't figure out which one git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91796 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-19Initialization improvements: addition of string initialization and a fewEli Friedman
small bug fixes in SemaInit, switch over SemaDecl to use it more often, and change a bunch of diagnostics which are different with the new initialization code. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91767 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-19Switch more of Sema::CheckInitializerTypes over toDouglas Gregor
InitializationSequence. Specially, switch initialization of a C++ class type (either copy- or direct-initialization). Also, make sure that we create an elidable copy-construction when performing copy initialization of a C++ class variable. Fixes PR5826. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91750 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-18Switch the initialization required by return statements over to theDouglas Gregor
new InitializationSequence. This fixes some bugs (e.g., PR5808), changed some diagnostics, and caused more churn than expected. What's new: - InitializationSequence now has a "C conversion sequence" category and step kind, which falls back to - Changed the diagnostics for returns to always have the result type of the function first and the type of the expression second. CheckSingleAssignmentConstraints to peform checking in C. - Improved ASTs for initialization of return values. The ASTs now capture all of the temporaries we need to create, but intentionally do not bind the tempoary that is actually returned, so that it won't get destroyed twice. - Make sure to perform an (elidable!) copy of the class object that is returned from a class. - Fix copy elision in CodeGen to properly see through the subexpressions that occur with elidable copies. - Give "new" its own entity kind; as with return values and thrown objects, we don't bind the expression so we don't call a destructor for it. Note that, with this patch, I've broken returning move-only types in C++0x. We'll fix it later, when we tackle NRVO. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91669 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-16When value-initializing a class with no user-defined constructors butDouglas Gregor
with a non-trivial default constructor, zero-initialize the storage and then call the default constructor. Fixes PR5800. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91548 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-16In Sema::CheckInitializerTypes, replace a use of CheckReferenceInit with an ↵Douglas Gregor
InitializationSequence git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91542 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-16Eliminate Sema::CheckValueInitialization; its callers now useDouglas Gregor
InitializationSequence to perform the actual initialization. Also, introduced the notion of a tree of initialized entities, so that we can know where an initialization began when dealing with nested initializations (as occur when performing list initialization). This will, eventually, be useful for producing better diagnostics when list initialization fails, because we can show the path from the top-level object being initialized down to the actual subobject where initialization failed. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91516 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-16Fix semantic diagnostics that embed English works, from Nicola Gigante!Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91503 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-16Switch the C++ new expression over to InitializationSequence, ratherDouglas Gregor
than using its own partial implementation of initialization. Switched CheckInitializerTypes over to InitializedEntity/InitializationKind, to help move us closer to InitializationSequence. Added InitializedEntity::getName() to retrieve the name of the entity, for diagnostics that care about such things. Implemented support for default initialization in InitializationSequence. Clean up the determination of the "source expressions" for an initialization sequence in InitializationSequence::Perform. Taught CXXConstructExpr to store more location information. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91492 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-15Implement value initialization in InitializationSequence; untestedDouglas Gregor
WIP, yet again. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91368 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-14Minor cleanups for constructor initialization in InitializationSequenceDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91325 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-14Constructor initialization for InitializationSequence. Untested WIP.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91323 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-14Implement user-defined conversions in InitializationSequence. WPI thatDouglas Gregor
isn't turned on anyway yet, so it cannot be tested. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91294 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-13Silence some release build warnings.Chandler Carruth
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91234 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-12Un-namespace-qualify llvm_unreachable. It's a macro, so the qualification gaveJeffrey Yasskin
no extra safety anyway. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91207 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-11Fix a recent regression from the initialization changes.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91097 91177308-0d34-0410-b5e6-96231b3b80d8
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