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path: root/lib/Sema/SemaLookup.cpp
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2010-10-23C++ [basic.scope.hiding] allows an ordinary name to hide a non-tagDouglas Gregor
name *in the same scope*, but not across scopes. Implement the highlighted condition. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@117212 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-22In the presence of using declarations, we can find the same classDouglas Gregor
members in class subobjects of different types. So long as the underlying declaration sets are the same, and the declaration sets involve non-instance members, this is not an ambiguity. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@117163 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-20Fix handling of property and ivar lookup in typo correction; the twoDouglas Gregor
kinds of lookup into Objective-C classes were tangled together, a situation that was compounded by automatically synthesized ivars. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@116907 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-20Introduce a simple cache for unqualified typo corrections, so that weDouglas Gregor
don't repeatedly loop through identifiers, correcting the same typo'd identifier over and over again. We still bail out after 20 typo corrections, but this should help improve performance in the common case where we're typo-correcting because the user forgot to include a header. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@116901 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-20Eliminate another ordering dependency in typo correction. Re-enable typo.m, ↵Douglas Gregor
which seems to be working properly. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@116894 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-19Provide an upper bound to the edit-distance algorithm when performingDouglas Gregor
typo correction, to allow early exits. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@116868 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-19Improve the performance of typo correction, by using a simpleDouglas Gregor
computation to compute the lower bound of the edit distance, so that we can avoid computing the edit distance for names that will clearly be rejected later. Since edit distance is such an expensive algorithm (M x N), this leads to a 7.5x speedup when correcting NSstring -> NSString in the presence of a Cocoa PCH. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@116849 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-15When performing typo correction, keep track of whether the last lookupDouglas Gregor
we did was an acceptable lookup. If it is, then we can re-use that lookup result. If it isn't, we have to perform the lookup again. This is almost surely the cause behind the mysterious typo.m failures on some builders; we were getting the wrong lookup results returned. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@116586 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-15When we're in the context of an Objective-C message send's receiver,Douglas Gregor
typo correction prefers "super" over other, equivalent completions. I believe this will fix the regression on the buildbot. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@116574 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-14When performing typo correction, look through the set of knownDouglas Gregor
identifiers to determine good typo-correction candidates. Once we've identified those candidates, we perform name lookup on each of them and the consider the results. This optimization makes typo correction > 2x faster on a benchmark example using a single typo (NSstring) in a tiny file that includes Cocoa.h from a precompiled header, since we are deserializing far less information now during typo correction. There is a semantic change here, which is interesting. The presence of a similarly-named entity that is not visible can now affect typo correction. This is both good (you won't get weird corrections if the thing you wanted isn't in scope) and bad (you won't get good corrections if there is a similarly-named-but-completely-unrelated thing). Time will tell whether it was a good choice or not. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@116528 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-14Tweak the typo-correction implementation to determine correctionsDouglas Gregor
solely based on the names it sees, rather than actual declarations it gets. In essence, we determine the set of names that are "close enough" to the typo'd name. Then, we perform name lookup for each of those names, filtering out those that aren't actually visible, and typo-correct from the remaining results. Overall, there isn't much of a change in the behavior of typo correction here. The only test-suite change comes from the fact that we make good on our promise to require that the user type 3 characters for each 1 character corrected. The real intent behind this change is to set the stage for an optimization to typo correction (so that we don't need to deserialize all declarations in a translation unit) and future work in finding missing qualification ("'vector' isn't in scope; did you mean 'std::vector'?). Plus, the code is cleaner this way. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@116511 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-04zap more dead code.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113076 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-01Split ObjCInterfaceDecl::ReferencedProtocols into two lists: ↵Ted Kremenek
ReferencedProtocols and AllReferencedProtocols. ReferencedProtocols (and thus protocol_begin(), protocol_end()) now only contains the list of protocols that were directly referenced in an @interface declaration. 'all_referenced_protocol_[begin,end]()' now returns the set of protocols that were referenced in both the @interface and class extensions. The latter is needed for semantic analysis/codegen, while the former is needed to maintain the lexical information of the original source. Fixes <rdar://problem/8380046>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@112691 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-31Make inline namespace not be transparent after all. The concept simply ↵Sebastian Redl
doesn't fit. Instead, special-case the few places where transparent contexts have the desired behavior for inline namespaces. Fixes a redeclaration issue in inline namespaces. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@112637 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-25Split out a header to hold APIs meant for the Sema implementation from Sema.h.John McCall
Clients of Sema don't need to know (for example) the list of diagnostics we support. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@112093 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-25GCC didn't care for my attempt at API compatibility, so brute-force everythingJohn McCall
to the new constants. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@112047 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-25Split FunctionScopeInfo and BlockScopeInfo into their own header.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@112038 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-25Remove the DenseSet dependency from Sema.h.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@112030 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-25Move more stuff out of Sema.h.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@112026 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-24More header elimination. The goal of all this is to allow Parser toJohn McCall
#include Sema.h while keeping all the AST declarations opaque. That may not be reasonably attainable, though. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111907 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-21DeclPtrTy -> Decl *John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111733 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-20Another step in the process of making the parser depend on Sema:John McCall
- move DeclSpec &c into the Sema library - move ParseAST into the Parse library Reflect this change in a thousand different includes. Reflect this change in the link orders. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111667 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-15Extend the code-completion caching infrastructure to include globalDouglas Gregor
declarations (in addition to macros). Each kind of declaration maps to a certain set of completion contexts, and the ASTUnit completion logic introduces the completion strings for those declarations if the actual code-completion occurs in one of the contexts where it matters. There are a few new code-completion-context kinds. Without these, certain completions (e.g., after "using namespace") would need to suppress all global completions, which would be unfortunate. Note that we don't get the priorities right for global completions, because we don't have enough type information. We'll need a way to compare types in an ASTContext-agnostic way before this can be implemented. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111093 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-12Move Sema's headers into include/clang/Sema, renaming a few along the way.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110945 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-11Don't try to implicitly declare special members of an invalid class.John McCall
Fixes a crash in a rather large and difficult-to-reduce test case. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110882 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-11Added locations and type source info for DeclarationName.Abramo Bagnara
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110860 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-11If name lookup finds different type declarations in different scopesDouglas Gregor
that actually refer to the same underlying type, it is not an ambiguity; add uniquing support based on the canonical type of type declarations. Fixes <rdar://problem/8296180>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110806 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-09Introduce -f{no-}spell-checking options to enable/disableDouglas Gregor
spell-checking. By default, spell-checking is enabled for Clang (obviously) but disabled in CIndex for performance reasons. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107992 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-03Lazily declare default constructors. We now delay the construction ofDouglas Gregor
declarations for implicit default constructors, copy constructors, copy assignment operators, and destructors. On a "simple" translation unit that includes a bunch of C++ standard library headers, we generate relatively few of these implicit declarations now: 4/159 implicit default constructors created 18/236 implicit copy constructors created 70/241 implicit copy assignment operators created 0/173 implicit destructors created And, on this translation unit, this optimization doesn't really provide any benefit. I'll do some more performance measurements soon, but this completes the implementation work for <rdar://problem/8151045>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107551 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-02Lazily declare implicit copy constructors.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107543 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-02Introduce a new routine, LookupConstructors(), and use it for allDouglas Gregor
constructor-name lookup. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107536 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-02Lazily declare copy-assignment operators.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107521 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-02Lazily declare the implicitly-declared destructor in a C++ class.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107510 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-01Add a new routine Sema::LookupDestructor and make all destructor-lookup ↵Douglas Gregor
calls use that routine git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107444 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-01Be a bit more careful with undefined CXXRecordDecls. FixesDouglas Gregor
rdar://problem/8124080 and PR7118. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107358 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-28A more minimal fix for PR6762.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@104991 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-28Roll back r104941.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@104990 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-28Add a new attribute on records, __attribute__((adl_invisible)), and defineJohn McCall
the x86-64 __va_list_tag with this attribute. The attribute causes the affected type to behave like a fundamental type when considered by ADL. (x86-64 is the only target we currently provide with a struct-based __builtin_va_list) Fixes PR6762. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@104941 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-28Optimize and complete associated-class-and-namespace collection fromJohn McCall
a type. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@104938 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-20Reinstate r104117, Chandler Carruth's change that "[provides] a namingDouglas Gregor
class for UnresolvedLookupExprs, even when occuring on template names" along with a fix for an Objective-C++ crasher it introduced. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@104277 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-20Remove accidental commitDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@104207 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-20Various small fixes for construction/destruction of Objective-C++Douglas Gregor
instance variables: - Use isRecordType() rather than isa<RecordType>(), so that we see through typedefs in ivar types. - Mark the destructor as referenced - Perform C++ access control on the destructor git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@104206 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-19Revert r104117, "Provide a naming class for UnresolvedLookupExprs, even whenDaniel Dunbar
occuring on..." which breaks some Objective-C code. Working on getting a test case... git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@104150 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-19Provide a naming class for UnresolvedLookupExprs, even when occuring onChandler Carruth
template names. We were completely missing naming classes for many unqualified lookups, but this didn't trigger code paths that need it. This removes part of an optimization that re-uses the template name lookup done by the parser to determine if explicit template arguments actually form a template-id. Unfortunately the technique for avoiding the duplicate lookup lost needed data such as the class context in which the lookup succeeded. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@104117 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-18Give a slight edge to the context-sensitive keyword 'super' overDouglas Gregor
non-function-local declarations with names similar to what the user typed. For example, this allows us to correct 'supper' to 'super' in an Objective-C message send, even though the C function 'isupper' has the same edit distance. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@104023 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-18Tweak typo-correction logic a bit regarding "super", so that weDouglas Gregor
consider "super" as a candidate whenever we're parsing an expression within an Objective-C method in an interface that has a superclass. At some point, we'd like to give "super" a little edge over non-local names; that will come later. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@104022 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14Make sure to search semantic scopes and appropriate template-parameterDouglas Gregor
scopes during unqualified name lookup that has fallen out to namespace scope. Fixes PR7133. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103766 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-01It turns out that basically every caller to RequireCompleteDeclContextJohn McCall
already knows what context it's looking in. Just pass that context in instead of (questionably) recalculating it. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@102818 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-30Fix ADL for types declared in transparent decls, from Alp Toker!Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@102695 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-25When name lookup finds a single declaration that was imported via aDouglas Gregor
using declaration, look at its underlying declaration to determine the lookup result kind (e.g., overloaded, unresolved). Fixes at least one issue in Boost.Bimap. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@102317 91177308-0d34-0410-b5e6-96231b3b80d8
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