aboutsummaryrefslogtreecommitdiff
path: root/lib/Sema/SemaExpr.cpp
AgeCommit message (Collapse)Author
2009-11-18Simplify ActOnPostfixUnaryOp.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@89188 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-18Incremental progress on using declarations. Split UnresolvedUsingDecl intoJohn McCall
two classes, one for typenames and one for values; this seems to have some support from Doug if not necessarily from the extremely-vague-on-this-point standard. Track the location of the 'typename' keyword in a using-typename decl. Make a new lookup result for unresolved values and deal with it in most places. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@89184 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-18Eliminate some completely-redundant lookupsDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@89181 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-17Carry lookup configuration throughout lookup on the LookupResult. GiveJohn McCall
LookupResult RAII powers to diagnose ambiguity in the results. Other diagnostics (e.g. access control and deprecation) will be moved to automatically trigger during lookup as part of this same mechanism. This abstraction makes it much easier to encapsulate aliasing declarations (e.g. using declarations) inside the lookup system: eventually, lookup will just produce the aliases in the LookupResult, and the standard access methods will naturally strip the aliases off. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@89027 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-17PR5526: Make sure to set the right cast kinds for the inserted implicit casts.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@89023 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-16First part of changes to eliminate problems with cv-qualifiers andDouglas Gregor
sugared types. The basic problem is that our qualifier accessors (getQualifiers, getCVRQualifiers, isConstQualified, etc.) only look at the current QualType and not at any qualifiers that come from sugared types, meaning that we won't see these qualifiers through, e.g., typedefs: typedef const int CInt; typedef CInt Self; Self.isConstQualified() currently returns false! Various bugs (e.g., PR5383) have cropped up all over the front end due to such problems. I'm addressing this problem by splitting each qualifier accessor into two versions: - the "local" version only returns qualifiers on this particular QualType instance - the "normal" version that will eventually combine qualifiers from this QualType instance with the qualifiers on the canonical type to produce the full set of qualifiers. This commit adds the local versions and switches a few callers from the "normal" version (e.g., isConstQualified) over to the "local" version (e.g., isLocalConstQualified) when that is the right thing to do, e.g., because we're printing or serializing the qualifiers. Also, switch a bunch of Context.getCanonicalType(T1).getUnqualifiedType() == Context.getCanonicalType(T2).getQualifiedType() expressions over to Context.hasSameUnqualifiedType(T1, T2) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@88969 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-14Always build a builtin operator expression for the __extension__ unary operator.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@88811 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-14PR5462: Don't run off the edge of the argument array for vararg handlingEli Friedman
when there are more parameters in the prototype than arguments to the call. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@88759 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-13Don't bind arguments to temporaries if the argument has a reference type.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@88662 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-13Fix two bugs with temporaries:Anders Carlsson
1. For A f() { return A(); } we were incorrectly calling the A destructor on the returned object. 2. For void f(A); void g() { A a; f(a); } we were incorrectly not calling the copy constructor. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@87082 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-12Note to self: don't leave debugging statements in the code for four hours.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86931 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-12Add <foo> = [<bar> nextObject] to the -Widiomatic-parentheses category,John McCall
and give that category an explicit test. Generalize the internal diagnostic name. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86905 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-11Preserve source locations when building offsetof expressions featuringJohn McCall
anonymous members. Partial fix for PR 5390. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86796 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-11Apparently the following idiom is specifically encouraged:John McCall
if (self = [super init]) Recognize it and only warn if -Wparentheses is explicitly enabled. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86790 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-10Improve parsing of template arguments to lay the foundation forDouglas Gregor
handling template template parameters properly. This refactoring: - Parses template template arguments as id-expressions, representing the result of the parse as a template name (Action::TemplateTy) rather than as an expression (lame!). - Represents all parsed template arguments via a new parser-specific type, ParsedTemplateArgument, which stores the kind of template argument (type, non-type, template) along with all of the source information about the template argument. This replaces an ad hoc set of 3 vectors (one for a void*, which was either a type or an expression; one for a bit telling whether the first was a type or an expression; and one for a single source location pointing at the template argument). - Moves TemplateIdAnnotation into the new Parse/Template.h. It never belonged in the Basic library anyway. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86708 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-10When trying to assign a regular string literal to an Objective-C 'id' type ↵Anders Carlsson
or a pointer to an NSString, emit a code insertion hint that turns it into an Objective-C string. For example: @class NSString; @interface Test + (void)test:(NSString *)string; @end void g(NSString *a); void f() { NSString *a = "Foo"; g("Foo"); [Test test:"Foo"]; } will produce t.m:10:17: warning: incompatible pointer types initializing 'char [4]', expected 'NSString *' NSString *a = "Foo"; ^~~~~ @ t.m:11:5: warning: incompatible pointer types passing 'char [4]', expected 'NSString *' g("Foo"); ^~~~~ @ t.m:12:14: warning: incompatible pointer types sending 'char [4]', expected 'NSString *' [Test test:"Foo"]; ^~~~~ @ 3 diagnostics generated. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86665 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-09Changed error for nested type qualifier mismatch toFariborz Jahanian
warning, to match gcc. It used to be warning, so better keep it a warning (it broke a certain project). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86597 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-08Test commit - minor terminology change to my recent patch suggested by John ↵Sean Hunt
McCall git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86442 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-07Patch to gives an error that at least points users in the direction of the ↵Fariborz Jahanian
error, rather than an error about incompatible types. Patch by Sean Hunt. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86402 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-06Don't warn -Wsign-compare if we're in an unevaluated context, and fixedJohn McCall
a typo pointed out by Fariborz. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86265 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-06compare.c also needs a target triple now, and improve some comments while we'reJohn McCall
at it. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86243 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-06Improve the -Wsign-compare heuristics:John McCall
* If the unsigned type is smaller than the signed type, never warn, because its value will not change when zero-extended to the larger type. * If we're testing for (in)equality, and the unsigned value is an integer constant whose sign bit is not set, never warn, because even though the signed value might change, it can't affect the result of the equality. Also make the comparison test cases much more rigorous, and have them expose the subtle differences between C and C++ here. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86242 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-06Rework the fix-it hint for code likeDouglas Gregor
get_origin->x where get_origin is actually a function and the user has forgotten the parentheses. Instead of giving a lame note for the fix-it, give a full-fledge error, early, then build the call expression to try to recover. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86238 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-05The signed/unsigned checker should not warn for value-dependent expressions, ↵Sebastian Redl
and should especially not try to evaluate them. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86173 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-05Eliminate some false positives due to a thinko in the "'blah' isDouglas Gregor
always zero in this context" warning logic. Also, make the diagnostic itself more precise when referring to pointer values ("NULL" vs. "zero"). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86143 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-05Implement the conditional-operator part of -Wsign-compare. TurnJohn McCall
DiagnoseSignCompare into Sema::CheckSignCompare and call it from more places. Add some enumerator tests. These seem to expose some oddities in the types we're converting C++ enumerators to; in particular, they're converting to unsigned before int, which seems to contradict 4.5 [conv.prom] p2. Note to self: stop baiting Doug in my commit messages. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86128 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-05When instantiating a UnaryOperator, allow the resulting expression toDouglas Gregor
still be dependent or invoke an overloaded operator. Previously, we only supported builtin operators. BinaryOperator/CompoundAssignOperator didn't have this issue because we always built a CXXOperatorCallExpr node, even when name lookup didn't find any functions to save until instantiation time. Now, that code builds a BinaryOperator or CompoundAssignOperator rather than a CXXOperatorCallExpr, to save some space. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86087 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-05Implement -Wsign-compare, or at least the actual comparison part of it.John McCall
Conditional operands are next. Fixes part of rdar://problem/7289584. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86083 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-04Preserve type source information in sizeof/alignof expressions, and pass itJohn McCall
through to indexing. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86018 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-04Diagnose __builtin_offsetof on incomplete types. FixesJohn McCall
rdar://problem/7222956 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@85999 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-04Change our basic strategy for avoiding deprecation warnings when the decl useJohn McCall
appears in a deprecated context. In the new strategy, we emit the warnings as usual unless we're currently parsing a declaration, where "declaration" is restricted to mean a decl group or a few special cases in Objective C. If we *are* parsing a declaration, we queue up the deprecation warnings until the declaration has been completely parsed, and then emit them only if the decl is not deprecated. We also standardize the bookkeeping for deprecation so as to avoid special cases. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@85998 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-04Implement support for parsing dependent template-ids that refer toDouglas Gregor
overloaded operators, e.g., p->template operator+<T>() git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@85989 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-03We have to ensure we have the canonical type to do this. This is butMike Stump
one instance of a large problem. assert for non-canoical types would help track down these things. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@85956 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-03Replace the code that parses member access expressions after "." orDouglas Gregor
"->" with a use of ParseUnqualifiedId. Collapse ActOnMemberReferenceExpr, ActOnDestructorReferenceExpr (both of them), ActOnOverloadedOperatorReferenceExpr, ActOnConversionOperatorReferenceExpr, and ActOnMemberTemplateIdReferenceExpr into a single, new action ActOnMemberAccessExpr that does the same thing more cleanly (and can keep more source-location information). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@85930 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-03Use ParseUnqualifiedId when parsing id-expressions. This eliminatesDouglas Gregor
yet another copy of the unqualified-id parsing code. Also, use UnqualifiedId to simplify the Action interface for building id-expressions. ActOnIdentifierExpr, ActOnCXXOperatorFunctionIdExpr, ActOnCXXConversionFunctionExpr, and ActOnTemplateIdExpr have all been removed in favor of the new ActOnIdExpression action. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@85904 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-29Properly instantiate usage of overloaded operator []. Fixes PR5345.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@85524 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-29Track source information for template arguments and template specializationJohn McCall
types. Preserve it through template instantiation. Preserve it through PCH, although TSTs themselves aren't serializable, so that's pretty much meaningless. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@85500 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-28Diagnose use of data pointer member in a function callFariborz Jahanian
expression instead of crashing. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@85401 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-27Type of a conditional expression with two distinct objective-cFariborz Jahanian
class pointer is the most derived common class of the two. This is <rdar://problem/7334235>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@85337 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-27Explicit instantiation suppresses the instantiation of non-inlineDouglas Gregor
function template specializations and member functions of class template specializations. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@85300 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-27Implement Chris's suggestions for the precendence warnings. Reformat the ↵Sebastian Redl
code a bit. Test the fixits. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@85231 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-26Add fixit hint to bitwise precedence warning.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@85129 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-26Implement a warning for mixing bitwise logical with comparison ops. Fixes ↵Sebastian Redl
PR5297. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@85117 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-25Implement rdar://6756623 - use of deprecated type in deprecated typedef ↵Chris Lattner
should not warn git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@85073 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-25minor reorg: check both attributes before decl.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@85058 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-25Add support for vector shifts, pretty straight forward.Nate Begeman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@85033 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-23Migrate Sema::ActOnCallExpr to Sema::FixOverloadedFunctionReference,Douglas Gregor
so that we maintain better source information after template argument deduction and overloading resolves down to a specific declaration. Found and dealt with a few more cases that FixOverloadedFunctionReference didn't cope with. (Finally) added a test case that puts together this change with the DeclRefExpr change to (optionally) include nested-name-specifiers and explicit template argument lists. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@84974 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-23Apply the special enum restrictions from [over.match.oper]p3b2 in ↵Sebastian Redl
argument-dependent lookup too. This fixes PR5244. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@84963 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-23Eliminate QualifiedDeclRefExpr, which captured the notion of aDouglas Gregor
qualified reference to a declaration that is not a non-static data member or non-static member function, e.g., namespace N { int i; } int j = N::i; Instead, extend DeclRefExpr to optionally store the qualifier. Most clients won't see or care about the difference (since QualifierDeclRefExpr inherited DeclRefExpr). However, this reduces the number of top-level expression types that clients need to cope with, brings the implementation of DeclRefExpr into line with MemberExpr, and simplifies and unifies our handling of declaration references. Extended DeclRefExpr to (optionally) store explicitly-specified template arguments. This occurs when naming a declaration via a template-id (which will be stored in a TemplateIdRefExpr) that, following template argument deduction and (possibly) overload resolution, is replaced with a DeclRefExpr that refers to a template specialization but maintains the template arguments as written. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@84962 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-22Refactor our handling of implicit member reference expressions to get most ↵Douglas Gregor
of the logic out of BuildDeclarationNameExpr git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@84847 91177308-0d34-0410-b5e6-96231b3b80d8
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2025-05-05 06:21:34 +0000