diff options
Diffstat (limited to 'include/clang')
| -rw-r--r-- | include/clang/AST/DeclBase.h | 15 | ||||
| -rw-r--r-- | include/clang/Basic/DiagnosticGroups.td | 9 | ||||
| -rw-r--r-- | include/clang/Basic/DiagnosticSemaKinds.td | 6 |
3 files changed, 27 insertions, 3 deletions
diff --git a/include/clang/AST/DeclBase.h b/include/clang/AST/DeclBase.h index 1656240bc4..0473d1ca1f 100644 --- a/include/clang/AST/DeclBase.h +++ b/include/clang/AST/DeclBase.h @@ -227,6 +227,12 @@ private: /// required. unsigned Used : 1; + /// \brief Whether this declaration was "referenced". + /// The difference with 'Used' is whether the reference appears in a + /// evaluated context or not, e.g. functions used in uninstantiated templates + /// are regarded as "referenced" but not "used". + unsigned Referenced : 1; + protected: /// Access - Used by C++ decls for the access specifier. // NOTE: VC++ treats enums as signed, avoid using the AccessSpecifier enum @@ -261,7 +267,7 @@ protected: Decl(Kind DK, DeclContext *DC, SourceLocation L) : NextDeclInContext(0), DeclCtx(DC), Loc(L), DeclKind(DK), InvalidDecl(0), - HasAttrs(false), Implicit(false), Used(false), + HasAttrs(false), Implicit(false), Used(false), Referenced(false), Access(AS_none), PCHLevel(0), ChangedAfterLoad(false), IdentifierNamespace(getIdentifierNamespaceForKind(DK)), HasCachedLinkage(0) @@ -271,7 +277,7 @@ protected: Decl(Kind DK, EmptyShell Empty) : NextDeclInContext(0), DeclKind(DK), InvalidDecl(0), - HasAttrs(false), Implicit(false), Used(false), + HasAttrs(false), Implicit(false), Used(false), Referenced(false), Access(AS_none), PCHLevel(0), ChangedAfterLoad(false), IdentifierNamespace(getIdentifierNamespaceForKind(DK)), HasCachedLinkage(0) @@ -408,6 +414,11 @@ public: void setUsed(bool U = true) { Used = U; } + /// \brief Whether this declaration was referenced. + bool isReferenced() const; + + void setReferenced(bool R = true) { Referenced = R; } + /// \brief Determine the availability of the given declaration. /// /// This routine will determine the most restrictive availability of diff --git a/include/clang/Basic/DiagnosticGroups.td b/include/clang/Basic/DiagnosticGroups.td index c8465508c8..15f3dbd464 100644 --- a/include/clang/Basic/DiagnosticGroups.td +++ b/include/clang/Basic/DiagnosticGroups.td @@ -154,6 +154,8 @@ def UnusedLabel : DiagGroup<"unused-label">; def UnusedParameter : DiagGroup<"unused-parameter">; def UnusedValue : DiagGroup<"unused-value">; def UnusedVariable : DiagGroup<"unused-variable">; +def UnneededInternalDecl : DiagGroup<"unneeded-internal-declaration">; +def UnneededMemberFunction : DiagGroup<"unneeded-member-function">; def UsedButMarkedUnused : DiagGroup<"used-but-marked-unused">; def ReadOnlySetterAttrs : DiagGroup<"readonly-setter-attrs">; def Reorder : DiagGroup<"reorder">; @@ -198,11 +200,16 @@ def Conversion : DiagGroup<"conversion", BoolConversions]>, DiagCategory<"Value Conversion Issue">; +def Unneeded : DiagGroup<"unneeded", + [UnneededInternalDecl + //,UnneededMemberFunction (clean-up llvm before enabling) + ]>; + def Unused : DiagGroup<"unused", [UnusedArgument, UnusedFunction, UnusedLabel, // UnusedParameter, (matches GCC's behavior) // UnusedMemberFunction, (clean-up llvm before enabling) - UnusedValue, UnusedVariable]>, + UnusedValue, UnusedVariable, Unneeded]>, DiagCategory<"Unused Entity Issue">; // Format settings. diff --git a/include/clang/Basic/DiagnosticSemaKinds.td b/include/clang/Basic/DiagnosticSemaKinds.td index 3ca45d4cf3..ce592a3c95 100644 --- a/include/clang/Basic/DiagnosticSemaKinds.td +++ b/include/clang/Basic/DiagnosticSemaKinds.td @@ -116,6 +116,12 @@ def warn_unused_member_function : Warning<"unused member function %0">, InGroup<UnusedMemberFunction>, DefaultIgnore; def warn_used_but_marked_unused: Warning<"%0 was marked unused but was used">, InGroup<UsedButMarkedUnused>, DefaultIgnore; +def warn_unneeded_internal_decl : Warning< + "%select{function|variable}0 %1 is not needed and will not be emitted">, + InGroup<UnneededInternalDecl>, DefaultIgnore; +def warn_unneeded_member_function : Warning< + "member function %0 is not needed and will not be emitted">, + InGroup<UnneededMemberFunction>, DefaultIgnore; def warn_parameter_size: Warning< "%0 is a large (%1 bytes) pass-by-value argument; " |