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* Cleanup: remove artificial division between lookup results and const lookupRichard Smith2015-02-211-1/+1
| | | | | | | results. No-one was ever modifying a lookup result, and it would not be reasonable to do so. llvm-svn: 230123
* Revert r167816 and replace it with a proper fix for the issue: do notRichard Smith2015-02-211-13/+17
| | | | | | | invalidate lookup_iterators and lookup_results for some name within a DeclContext if the lookup results for a *different* name change. llvm-svn: 230121
* [modules] When determining whether a name from a module replaces a name weRichard Smith2015-02-101-2/+2
| | | | | | | | | already have, check whether the name from the module is actually newer than the existing declaration. If it isn't, we might (say) replace a visible declaration with an injected friend, and thus make it invisible (or lose a default argument or an array bound). llvm-svn: 228661
* [modules] Treat friend declarations that are lexically within a dependentRichard Smith2015-02-071-0/+4
| | | | | | | context as anonymous for merging purposes. They can't be found by their names, so we merge them based on their position within the surrounding context. llvm-svn: 228485
* [modules] Don't accidentally trigger deserialization from ↵Richard Smith2015-02-071-6/+6
| | | | | | DeclContext::noload_lookup. llvm-svn: 228475
* Handle use of default member initializers before end of outermost classReid Kleckner2014-11-171-0/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Specifically, when we have this situation: struct A { template <typename T> struct B { int m1 = sizeof(A); }; B<int> m2; }; We can't parse m1's initializer eagerly because we need A to be complete. Therefore we wait until the end of A's class scope to parse it. However, we can trigger instantiation of B before the end of A, which will attempt to instantiate the field decls eagerly, and it would build a bad field decl instantiation that said it had an initializer but actually lacked one. Fixed by deferring instantiation of default member initializers until they are needed during constructor analysis. This addresses a long standing FIXME in the code. Fixes PR19195. Reviewed By: rsmith Differential Revision: http://reviews.llvm.org/D5690 llvm-svn: 222192
* Patch to wrap up '_' as separator in version numbersFariborz Jahanian2014-10-061-3/+9
| | | | | | | | | in availability attribute by preserving this info. in VersionTuple and using it in pretty printing of attributes and yet using '.' as separator when diagnosing unavailable message calls. rdar://18490958 llvm-svn: 219124
* [modules] When performing a lookup into a namespace, ensure that any laterRichard Smith2014-08-131-0/+5
| | | | | | | | | | redefinitions of that namespace have already been loaded. When writing out the names in a namespace, if we see a name that is locally declared and had imported declarations merged on top of it, export the local declaration as the lookup result, because it will be the most recent declaration of that entity in the redeclaration chain of an importer of the module. llvm-svn: 215518
* Move the logic for testing for namespace std into one location. This check canRichard Trieu2014-05-281-0/+20
| | | | | | be performed by using Decl::isInStdNamespace or DeclContext::isStdNamespace llvm-svn: 209708
* [C++11] Use 'nullptr'. AST edition.Craig Topper2014-05-121-18/+18
| | | | llvm-svn: 208517
* Make TypeDecl much less friendly.Richard Smith2014-04-231-8/+7
| | | | llvm-svn: 207007
* PR19411: Walk lexical parents, not semantic parents, when determining whether aRichard Smith2014-04-141-1/+1
| | | | | | DeclContext is (lexically) within a C language linkage specification. llvm-svn: 206204
* If a DeclContext's lookups need to be reconciled, and we're given external ↵Richard Smith2014-03-251-7/+15
| | | | | | declarations for a name, reconcile first. Otherwise, when we come to reconcile, we'll ask for external declarations for that name again. No functionality change intended. llvm-svn: 204692
* [C++11] Replacing DeclContext iterators using_directives_begin() and ↵Aaron Ballman2014-03-171-4/+4
| | | | | | using_directives_end() with iterator_range using_directives(). Updating all of the usages of the iterators with range-based for loops, and removing the no-longer-needed iterator versions. Also used as an opportunity to normalize the name from getUsingDirectives() to using_directives(). llvm-svn: 204061
* [C++11] Replacing Decl iterators attr_begin() and attr_end() with ↵Aaron Ballman2014-03-081-7/+7
| | | | | | | | iterator_range attrs(). Updating all of the usages of the iterators with range-based for loops. This is a reapplication of r203236 with modifications to the definition of attrs() and following the new style guidelines on auto usage. llvm-svn: 203362
* Reapplying r203299 in a slightly different manner. Now range APIs are ↵Aaron Ballman2014-03-081-14/+0
| | | | | | implemented in terms of iterator APIs. llvm-svn: 203351
* In my tests, I'm finding that declaring iterators in terms of ranges can ↵Aaron Ballman2014-03-071-0/+10
| | | | | | | | sometimes have dangerous side-effects where the range temporary is destroyed, taking the underlying iterators out with it. This changes the iterators so that they are no longer implemented in terms of ranges (so it's a very partial revert of the existing rangification efforts). llvm-svn: 203299
* [C++11] Replacing DeclBase iterators decls_begin() and decls_end() with ↵Aaron Ballman2014-03-071-5/+4
| | | | | | iterator_range decls(). The same is true for the noload versions of these APIs. Updating all of the usages of the iterators with range-based for loops. llvm-svn: 203278
* [C++11] Updating getUsingDirectives to use iterator_range instead of a ↵Aaron Ballman2014-03-071-2/+2
| | | | | | std::pair. llvm-svn: 203239
* Fully reverting r203236 -- it seems the only bots that are happy are the ↵Aaron Ballman2014-03-071-7/+7
| | | | | | MSVC bots. llvm-svn: 203237
* [C++11] Replacing iterators attr_begin() and attr_end() with iterator_range ↵Aaron Ballman2014-03-071-7/+7
| | | | | | attrs(). Updating all of the usages of the iterators with range-based for loops. llvm-svn: 203236
* [C++11] Replacing iterators redecls_begin() and redecls_end() with ↵Aaron Ballman2014-03-061-1/+1
| | | | | | iterator_range redecls(). Updating all of the usages of the iterators with range-based for loops, which allows the begin/end forms to be removed entirely. llvm-svn: 203179
* Fix typo that resulted in names at TU scope getting lost sometimes after aRichard Smith2014-03-041-1/+1
| | | | | | module import. llvm-svn: 202771
* [C++11] Replace llvm::tie with std::tie.Benjamin Kramer2014-03-021-2/+2
| | | | llvm-svn: 202639
* Introduce and use Decl::getAsFunction() to simplify templated function checksAlp Toker2014-01-221-5/+6
| | | | | | | | | | | | | | Lift the getFunctionDecl() utility out of the parser into a general Decl::getAsFunction() and use it to simplify other parts of the implementation. Reduce isFunctionOrFunctionTemplate() to a simple type check that works the same was as the other is* functions and move unwrapping of shadowed decls to callers so it doesn't get run twice. Shuffle around canSkipFunctionBody() to reduce virtual dispatch on ASTConsumer. There's no need to query when we already know the body can't be skipped. llvm-svn: 199794
* Factored some function-like type reasoning out of SemaDeclAttr and onto Decl ↵Aaron Ballman2014-01-161-0/+18
| | | | | | itself. This allows for more declarative subjects in attribute tablegen where the attribute appertains to something function-like, but not strictly a FunctionDecl. llvm-svn: 199387
* Assert that tag decls are never marked (in)valid after definition is completeAlp Toker2013-12-211-0/+1
| | | | | | | | Sema relies on this assumption. Follow-up to r197848. llvm-svn: 197850
* Eliminate the last trivial NDEBUG uses in clang headersAlp Toker2013-12-071-2/+3
| | | | | | assert(sanity()) reads so much better than preprocessor conditional blocks. llvm-svn: 196657
* Add class-specific operator new to Decl hierarchy. This guarantees that DeclsRichard Smith2013-11-221-8/+13
| | | | | | | | | | | | | can't accidentally be allocated the wrong way (missing prefix data for decls from AST files, for instance) and simplifies the CreateDeserialized functions a little. An extra DeclContext* parameter to the not-from-AST-file operator new allows us to ensure that we don't accidentally call the wrong one when deserializing (when we don't have a DeclContext), allows some extra checks, and prepares for some planned modules-related changes to Decl allocation. No functionality change intended. llvm-svn: 195426
* Added warning on structures/unions that are empty or contain onlySerge Pavlov2013-11-141-0/+18
| | | | | | | | | | bit fields of zero size. Warnings are generated in C++ mode and if only such type is defined inside extern "C" block. The patch fixed PR5065. Differential Revision: http://llvm-reviews.chandlerc.com/D2151 llvm-svn: 194653
* C++ modules: fix a bug where loading a declaration with some name would preventRichard Smith2013-09-091-14/+20
| | | | | | | | | | | | | | | | | name lookup from lazily deserializing the other declarations with the same name, by tracking a bit to indicate whether a name in a DeclContext might have additional external results. This also allows lazier reconciling of the lookup table if a module import adds decls to a pre-existing DC. However, this exposes a pre-existing bug, which causes a regression in test/Modules/decldef.mm: if we have a reference to a declaration, and a later-imported module adds a redeclaration, nothing causes us to load that redeclaration when we use or emit the reference (which can manifest as a reference to an undefined inline function, a use of an incomplete type, and so on). decldef.mm has been extended with an additional testcase which fails with or without this change. llvm-svn: 190293
* Note when a decl is used in AST files.Eli Friedman2013-09-051-0/+10
| | | | | | | | | | | | | | | When an AST file is built based on another AST file, it can use a decl from the fist file, and therefore mark the "isUsed" bit. We need to note this in the AST file so that the bit is set correctly when the second AST file is loaded. This patch introduces the distinction between setIsUsed() and markUsed() so that we don't call into the ASTMutationListener callback when it wouldn't be appropriate. Fixes PR16635. llvm-svn: 190016
* Implement [class.friend]p11's special name lookup rules for friend declarationsRichard Smith2013-08-091-8/+1
| | | | | | | | of local classes. We were previously handling this by performing qualified lookup within a function declaration(!!); replace it with the proper scope lookup. llvm-svn: 188050
* Started implementing variable templates. Top level declarations should be ↵Larisse Voufo2013-08-061-0/+3
| | | | | | fully supported, up to some limitations documented as FIXMEs or TODO. Static data member templates work very partially. Static data member templates of class templates need particular attention... llvm-svn: 187762
* C++ modules: Don't call DeclContext::lookup when half-way through deserializingRichard Smith2013-07-131-3/+45
| | | | | | | decls. That can reenter deserialization and explode horribly by trying to merge a declaration that we've not got very far through deserializing yet. llvm-svn: 186236
* Delete dead code.Eli Friedman2013-06-271-26/+0
| | | | llvm-svn: 185103
* Avoid adding entries to the DeclContext lookup table multiple times when lazilyRichard Smith2013-06-241-1/+9
| | | | | | | | | | | | | | | | | constructing a lookup table. Previously, buildLookup would add lookup table entries for each item lexically within the DC, and adding the first entry with a given name would trigger the external source to add all its entries with that name. Then buildLookup would carry on and re-add those entries all over again. Instead, follow a simple rule: a declaration from an external source is only ever made visible by the external source. One exception to this: since we don't usually build a lookup table for the TU in C, and we never serialize one, we don't expect the external source to provide lookups in the TU in C, so we build those ones ourselves. llvm-svn: 184696
* When setting the external visible declarations for a decl context, checkRichard Smith2013-06-241-7/+32
| | | | | | | whether they replace any existing lookups in the context, rather than accumulating a bunch of lookup results referring to the same entity. llvm-svn: 184679
* Make all 'is in extern "C"' tests use the lexical context.Rafael Espindola2013-05-051-22/+0
| | | | | | | I was not able to find a case (other than the fix in r181163) where this makes a difference, but it is a more obviously correct API to have. llvm-svn: 181165
* Added a function to check whether a Decl is inSean Callanan2013-05-041-0/+5
| | | | | | | | the list of Decls for a given DeclContext. This is useful for LLDB's implementation of FindExternalLexicalDecls. llvm-svn: 181093
* Micro-optimization: check the overloaded operator kind beforeJohn McCall2013-05-031-2/+2
| | | | | | | | checking for a lambda. Thanks to Jordan for the pointer. llvm-svn: 181031
* Correctly emit certain implicit references to 'self' even withinJohn McCall2013-05-031-12/+28
| | | | | | | | | | | | | | | | | | a lambda. Bug #1 is that CGF's CurFuncDecl was "stuck" at lambda invocation functions. Fix that by generally improving getNonClosureContext to look through lambdas and captured statements but only report code contexts, which is generally what's wanted. Audit uses of CurFuncDecl and getNonClosureAncestor for correctness. Bug #2 is that lambdas weren't specially mapping 'self' when inside an ObjC method. Fix that by removing the requirement for that and using the normal EmitDeclRefLValue path in LoadObjCSelf. rdar://13800041 llvm-svn: 181000
* Sema for Captured StatementsTareq A. Siraj2013-04-161-0/+2
| | | | | | | | | | | | | Add CapturedDecl to be the DeclContext for CapturedStmt, and perform semantic analysis. Currently captures all variables by reference. TODO: templates Author: Ben Langmuir <ben.langmuir@intel.com> Differential Revision: http://llvm-reviews.chandlerc.com/D433 llvm-svn: 179618
* Basic support for Microsoft property declarations andJohn McCall2013-04-161-0/+1
| | | | | | | | references thereto. Patch by Tong Shen! llvm-svn: 179585
* Add 178663 back.Rafael Espindola2013-04-031-1/+1
| | | | | | | | | | | http://lab.llvm.org:8011/builders/clang-x86_64-darwin10-gdb went back green before it processed the reverted 178663, so it could not have been the culprit. Revert "Revert 178663." This reverts commit 4f8a3eb2ce5d4ba422483439e20c8cbb4d953a41. llvm-svn: 178682
* Revert 178663.Rafael Espindola2013-04-031-1/+1
| | | | | | | | | | Looks like it broke http://lab.llvm.org:8011/builders/clang-x86_64-darwin10-gdb Revert "Don't compute a patched/semantic storage class." This reverts commit 8f187f62cb0487d31bc4afdfcd47e11fe9a51d05. llvm-svn: 178681
* Don't compute a patched/semantic storage class.Rafael Espindola2013-04-031-1/+1
| | | | | | | | | | | For variables and functions clang used to store two storage classes. The one "as written" in the code and a patched one, which, for example, propagates static to the following decls. This apparently is from the days clang lacked linkage computation. It is now redundant and this patch removes it. llvm-svn: 178663
* OpenMP threadprivate directive parsing and semantic analysisAlexey Bataev2013-03-221-0/+2
| | | | llvm-svn: 177705
* Add streamed versions of getQualifiedNameAsString.Benjamin Kramer2013-02-231-2/+5
| | | | | | Move the cold virtual method getNameForDiagnostic out of line. llvm-svn: 175966
* [Sema] Semantic analysis for empty-declaration and attribute-declaration.Michael Han2013-02-221-0/+1
| | | | | | | | Introduce a new AST Decl node "EmptyDecl" to model empty-declaration. Have attributes from attribute-declaration appertain to the EmptyDecl node by creating the AST representations of these attributes and attach them to the EmptyDecl node so these attributes can be sema checked just as attributes attached to "normal" declarations. llvm-svn: 175900
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