"friends cannot be members of the declaring class">;
def warn_cxx98_compat_friend_is_member : Warning<
"friend declaration naming a member of the declaring class is incompatible "
- "with C++98">, InGroup<CXX98Compat>, DefaultIgnore;
-def ext_unelaborated_friend_type : ExtWarn<
- "unelaborated friend declaration is a C++11 extension; specify "
- "'%select{struct|union|class|enum}0' to befriend %1">, InGroup<CXX11>;
-def warn_cxx98_compat_unelaborated_friend_type : Warning<
- "befriending %1 without '%select{struct|union|class|enum}0' keyword is "
- "incompatible with C++98">, InGroup<CXX98Compat>, DefaultIgnore;
-def err_qualified_friend_not_found : Error<
- "no function named %0 with type %1 was found in the specified scope">;
-def err_introducing_special_friend : Error<
+ "with C++98">, InGroup<CXX98Compat>, DefaultIgnore;\r
+def ext_unelaborated_friend_type : ExtWarn<\r
+ "unelaborated friend declaration is a C++11 extension; specify "\r
+ "'%select{struct|interface|union|class|enum}0' to befriend %1">,\r
+ InGroup<CXX11>;\r
+def warn_cxx98_compat_unelaborated_friend_type : Warning<\r
+ "befriending %1 without '%select{struct|interface|union|class|enum}0' "\r
+ "keyword is incompatible with C++98">, InGroup<CXX98Compat>, DefaultIgnore;\r
+def err_qualified_friend_not_found : Error<\r
+ "no function named %0 with type %1 was found in the specified scope">;\r
+def err_introducing_special_friend : Error<\r
"must use a qualified name when declaring a %select{constructor|"
"destructor|conversion operator}0 as a friend">;
def err_tagless_friend_type_template : Error<
def err_constructor_return_type : Error<
"constructor cannot have a return type">;
def err_constructor_redeclared : Error<"constructor cannot be redeclared">;
-def err_constructor_byvalue_arg : Error<
- "copy constructor must pass its first argument by reference">;
-def warn_no_constructor_for_refconst : Warning<
- "%select{struct|union|class|enum}0 %1 does not declare any constructor to "
- "initialize its non-modifiable members">;
-def note_refconst_member_not_initialized : Note<
- "%select{const|reference}0 member %1 will never be initialized">;
-def ext_ms_explicit_constructor_call : ExtWarn<
+def err_constructor_byvalue_arg : Error<\r
+ "copy constructor must pass its first argument by reference">;\r
+def warn_no_constructor_for_refconst : Warning<\r
+ "%select{struct|interface|union|class|enum}0 %1 does not declare any "\r
+ "constructor to initialize its non-modifiable members">;\r
+def note_refconst_member_not_initialized : Note<\r
+ "%select{const|reference}0 member %1 will never be initialized">;\r
+def ext_ms_explicit_constructor_call : ExtWarn<\r
"explicit constructor calls are a Microsoft extension">, InGroup<Microsoft>;
// C++ destructors
def err_illegal_decl_array_of_auto : Error<
"'%0' declared as array of %1">;
def err_new_array_of_auto : Error<
- "cannot allocate array of 'auto'">;
-def err_auto_not_allowed : Error<
- "'auto' not allowed %select{in function prototype|in non-static struct member"
- "|in non-static union member|in non-static class member|in exception declaration"
- "|in template parameter|in block literal|in template argument"
- "|in typedef|in type alias|in function return type|here}0">;
-def err_auto_var_requires_init : Error<
- "declaration of variable %0 with type %1 requires an initializer">;
-def err_auto_new_requires_ctor_arg : Error<
+ "cannot allocate array of 'auto'">;\r
+def err_auto_not_allowed : Error<\r
+ "'auto' not allowed %select{in function prototype|in non-static struct member"\r
+ "|in non-static union member|in non-static class member|in interface member"\r
+ "|in exception declaration|in template parameter|in block literal"\r
+ "|in template argument|in typedef|in type alias|in function return type"\r
+ "|here}0">;\r
+def err_auto_var_requires_init : Error<\r
+ "declaration of variable %0 with type %1 requires an initializer">;\r
+def err_auto_new_requires_ctor_arg : Error<\r
"new expression for type %0 requires a constructor argument">;
def err_auto_new_requires_parens : Error<
"new expression for type %0 cannot use list-initialization">;
"'constexpr' specifier is incompatible with C++98">,
InGroup<CXX98Compat>, DefaultIgnore;
def err_invalid_constexpr : Error<
- "%select{function parameter|typedef|non-static data member}0 "
- "cannot be constexpr">;
-def err_constexpr_tag : Error<
- "%select{class|struct|union|enum}0 cannot be marked constexpr">;
-def err_constexpr_dtor : Error<"destructor cannot be marked constexpr">;
-def err_constexpr_no_declarators : Error<
- "constexpr can only be used in variable and function declarations">;
+ "%select{function parameter|typedef|non-static data member}0 "\r
+ "cannot be constexpr">;\r
+def err_constexpr_tag : Error<\r
+ "%select{class|struct|interface|union|enum}0 cannot be marked constexpr">;\r
+def err_constexpr_dtor : Error<"destructor cannot be marked constexpr">;\r
+def err_constexpr_no_declarators : Error<\r
+ "constexpr can only be used in variable and function declarations">;\r
def err_invalid_constexpr_var_decl : Error<
"constexpr variable declaration must be a definition">;
def err_constexpr_static_mem_var_requires_init : Error<
def err_constexpr_redecl_mismatch : Error<
"%select{non-constexpr declaration of %0 follows constexpr declaration"
"|constexpr declaration of %0 follows non-constexpr declaration}1">;
-def err_constexpr_virtual : Error<"virtual function cannot be constexpr">;
-def err_constexpr_virtual_base : Error<
- "constexpr %select{member function|constructor}0 not allowed in "
- "%select{class|struct}1 with virtual base %plural{1:class|:classes}2">;
-def note_non_literal_incomplete : Note<
- "incomplete type %0 is not a literal type">;
-def note_non_literal_virtual_base : Note<"%select{class|struct}0 with virtual "
- "base %plural{1:class|:classes}1 is not a literal type">;
-def note_constexpr_virtual_base_here : Note<"virtual base class declared here">;
-def err_constexpr_non_literal_return : Error<
- "constexpr function's return type %0 is not a literal type">;
+def err_constexpr_virtual : Error<"virtual function cannot be constexpr">;\r
+def err_constexpr_virtual_base : Error<\r
+ "constexpr %select{member function|constructor}0 not allowed in "\r
+ "%select{struct|interface|class}1 with virtual base "\r
+ "%plural{1:class|:classes}2">;\r
+def note_non_literal_incomplete : Note<\r
+ "incomplete type %0 is not a literal type">;\r
+def note_non_literal_virtual_base : Note<"%select{struct|interface|class}0 "\r
+ "with virtual base %plural{1:class|:classes}1 is not a literal type">;\r
+def note_constexpr_virtual_base_here : Note<"virtual base class declared here">;\r
+def err_constexpr_non_literal_return : Error<\r
+ "constexpr function's return type %0 is not a literal type">;\r
def err_constexpr_non_literal_param : Error<
"constexpr %select{function|constructor}1's %ordinal0 parameter type %2 is "
"not a literal type">;
"__declspec attribute %0 is not supported">,
InGroup<IgnoredAttributes>;
def warn_attribute_invalid_on_stmt : Warning<
- "attribute %0 cannot be specified on a statement">,
- InGroup<IgnoredAttributes>;
-def warn_declspec_attribute_ignored : Warning<
- "attribute %0 is ignored, place it after \"%select{class|struct|union|enum}1\" to apply attribute to type declaration">, InGroup<IgnoredAttributes>;
-def warn_attribute_precede_definition : Warning<
- "attribute declaration must precede definition">,
- InGroup<IgnoredAttributes>;
+ "attribute %0 cannot be specified on a statement">,\r
+ InGroup<IgnoredAttributes>;\r
+def warn_declspec_attribute_ignored : Warning<\r
+ "attribute %0 is ignored, place it after "\r
+ "\"%select{class|struct|union|interface|enum}1\" to apply attribute to "\r
+ "type declaration">, InGroup<IgnoredAttributes>;\r
+def warn_attribute_precede_definition : Warning<\r
+ "attribute declaration must precede definition">,\r
+ InGroup<IgnoredAttributes>;\r
def warn_attribute_void_function_method : Warning<
"attribute %0 cannot be applied to "
"%select{functions|Objective-C method}1 without return value">,
def err_tag_reference_non_tag : Error<
"elaborated type refers to %select{a non-tag type|a typedef|a type alias|a template|a type alias template}0">;
def err_tag_reference_conflict : Error<
- "implicit declaration introduced by elaborated type conflicts with "
- "%select{a declaration|a typedef|a type alias|a template}0 of the same name">;
-def err_dependent_tag_decl : Error<
- "%select{declaration|definition}0 of %select{struct|union|class|enum}1 "
- "in a dependent scope">;
-def err_tag_definition_of_typedef : Error<
- "definition of type %0 conflicts with %select{typedef|type alias}1 of the same name">;
-def err_conflicting_types : Error<"conflicting types for %0">;
+ "implicit declaration introduced by elaborated type conflicts with "\r
+ "%select{a declaration|a typedef|a type alias|a template}0 of the same name">;\r
+def err_dependent_tag_decl : Error<\r
+ "%select{declaration|definition}0 of "\r
+ "%select{struct|interface|union|class|enum}1 in a dependent scope">;\r
+def err_tag_definition_of_typedef : Error<\r
+ "definition of type %0 conflicts with %select{typedef|type alias}1 of the same name">;\r
+def err_conflicting_types : Error<"conflicting types for %0">;\r
def err_nested_redefinition : Error<"nested redefinition of %0">;
-def err_use_with_wrong_tag : Error<
- "use of %0 with tag type that does not match previous declaration">;
-def warn_struct_class_tag_mismatch : Warning<
- "%select{struct|class}0%select{| template}1 %2 was previously declared "
- "as a %select{class|struct}0%select{| template}1">,
- InGroup<MismatchedTags>, DefaultIgnore;
-def warn_struct_class_previous_tag_mismatch : Warning<
- "%2 defined as a %select{struct|class}0%select{| template}1 here but "
- "previously declared as a %select{class|struct}0%select{| template}1">,
- InGroup<MismatchedTags>, DefaultIgnore;
-def note_struct_class_suggestion : Note<
- "did you mean %select{struct|class}0 here?">;
-def ext_forward_ref_enum : Extension<
- "ISO C forbids forward references to 'enum' types">;
-def err_forward_ref_enum : Error<
+def err_use_with_wrong_tag : Error<\r
+ "use of %0 with tag type that does not match previous declaration">;\r
+def warn_struct_class_tag_mismatch : Warning<\r
+ "%select{struct|interface|class}0%select{| template}1 %2 was previously "\r
+ "declared as a %select{struct|interface|class}3%select{| template}1">,\r
+ InGroup<MismatchedTags>, DefaultIgnore;\r
+def warn_struct_class_previous_tag_mismatch : Warning<\r
+ "%2 defined as %select{a struct|an interface|a class}0%select{| template}1 "\r
+ "here but previously declared as "\r
+ "%select{a struct|an interface|a class}3%select{| template}1">,\r
+ InGroup<MismatchedTags>, DefaultIgnore;\r
+def note_struct_class_suggestion : Note<\r
+ "did you mean %select{struct|interface|class}0 here?">;\r
+def ext_forward_ref_enum : Extension<\r
+ "ISO C forbids forward references to 'enum' types">;\r
+def err_forward_ref_enum : Error<\r
"ISO C++ forbids forward references to 'enum' types">;
def ext_ms_forward_ref_enum : Extension<
"forward references to 'enum' types are a Microsoft extension">, InGroup<Microsoft>;
def warn_array_new_too_large : Warning<"array is too large (%0 elements)">,
// FIXME PR11644: ", will throw std::bad_array_new_length at runtime"
InGroup<DiagGroup<"bad-array-new-length">>;
-
-// -Wpadded, -Wpacked
-def warn_padded_struct_field : Warning<
- "padding %select{struct|class}0 %1 with %2 %select{byte|bit}3%select{|s}4 "
- "to align %5">, InGroup<Padded>, DefaultIgnore;
-def warn_padded_struct_anon_field : Warning<
- "padding %select{struct|class}0 %1 with %2 %select{byte|bit}3%select{|s}4 "
- "to align anonymous bit-field">, InGroup<Padded>, DefaultIgnore;
-def warn_padded_struct_size : Warning<
- "padding size of %0 with %1 %select{byte|bit}2%select{|s}3 "
- "to alignment boundary">, InGroup<Padded>, DefaultIgnore;
+\r
+// -Wpadded, -Wpacked\r
+def warn_padded_struct_field : Warning<\r
+ "padding %select{struct|interface|class}0 %1 with %2 "\r
+ "%select{byte|bit}3%select{|s}4 to align %5">,\r
+ InGroup<Padded>, DefaultIgnore;\r
+def warn_padded_struct_anon_field : Warning<\r
+ "padding %select{struct|interface|class}0 %1 with %2 "\r
+ "%select{byte|bit}3%select{|s}4 to align anonymous bit-field">,\r
+ InGroup<Padded>, DefaultIgnore;\r
+def warn_padded_struct_size : Warning<\r
+ "padding size of %0 with %1 %select{byte|bit}2%select{|s}3 "\r
+ "to alignment boundary">, InGroup<Padded>, DefaultIgnore;\r
def warn_unnecessary_packed : Warning<
"packed attribute is unnecessary for %0">, InGroup<Packed>, DefaultIgnore;
def ext_flexible_array_in_array : Extension<
"%0 may not be used as an array element due to flexible array member">,
InGroup<FlexibleArrayExtensions>;
-def err_flexible_array_init : Error<
- "initialization of flexible array member is not allowed">;
-def ext_flexible_array_empty_aggregate_ms : Extension<
- "flexible array member %0 in otherwise empty %select{struct|class}1 "
- "is a Microsoft extension">, InGroup<Microsoft>;
-def ext_flexible_array_union_ms : Extension<
- "flexible array member %0 in a union is a Microsoft extension">,
- InGroup<Microsoft>;
-def ext_flexible_array_empty_aggregate_gnu : Extension<
- "flexible array member %0 in otherwise empty %select{struct|class}1 "
- "is a GNU extension">, InGroup<GNU>;
-def ext_flexible_array_union_gnu : Extension<
- "flexible array member %0 in a union is a GNU extension">, InGroup<GNU>;
-
+def err_flexible_array_init : Error<\r
+ "initialization of flexible array member is not allowed">;\r
+def ext_flexible_array_empty_aggregate_ms : Extension<\r
+ "flexible array member %0 in otherwise empty "\r
+ "%select{struct|interface|union|class|enum}1 is a Microsoft extension">,\r
+ InGroup<Microsoft>;\r
+def ext_flexible_array_union_ms : Extension<\r
+ "flexible array member %0 in a union is a Microsoft extension">,\r
+ InGroup<Microsoft>;\r
+def ext_flexible_array_empty_aggregate_gnu : Extension<\r
+ "flexible array member %0 in otherwise empty "\r
+ "%select{struct|interface|union|class|enum}1 is a GNU extension">,\r
+ InGroup<GNU>;\r
+def ext_flexible_array_union_gnu : Extension<\r
+ "flexible array member %0 in a union is a GNU extension">, InGroup<GNU>;\r
+\r
let CategoryName = "ARC Semantic Issue" in {
// ARC-mode diagnostics.
"because namespace %1 does not enclose namespace %2">;
def err_invalid_declarator_global_scope : Error<
"definition or redeclaration of %0 cannot name the global scope">;
-def err_invalid_declarator_in_function : Error<
- "definition or redeclaration of %0 not allowed inside a function">;
-def err_not_tag_in_scope : Error<
- "no %select{struct|union|class|enum}0 named %1 in %2">;
-
-def err_no_typeid_with_fno_rtti : Error<
- "cannot use typeid with -fno-rtti">;
+def err_invalid_declarator_in_function : Error<\r
+ "definition or redeclaration of %0 not allowed inside a function">;\r
+def err_not_tag_in_scope : Error<\r
+ "no %select{struct|interface|union|class|enum}0 named %1 in %2">;\r
+\r
+def err_no_typeid_with_fno_rtti : Error<\r
+ "cannot use typeid with -fno-rtti">;\r
def err_cannot_form_pointer_to_member_of_reference_type : Error<
"cannot form a pointer-to-member to member %0 of reference type %1">;
"%select{template|partial|member}0 specialization cannot be "
"declared __module_private__">;
def err_module_private_local : Error<
- "%select{local variable|parameter|typedef}0 %1 cannot be declared "
- "__module_private__">;
-def err_module_private_local_class : Error<
- "local %select{struct|union|class|enum}0 cannot be declared "
- "__module_private__">;
-def err_module_private_definition : Error<
- "definition of %0 must be imported before it is required">;
+ "%select{local variable|parameter|typedef}0 %1 cannot be declared "\r
+ "__module_private__">;\r
+def err_module_private_local_class : Error<\r
+ "local %select{struct|interface|union|class|enum}0 cannot be declared "\r
+ "__module_private__">;\r
+def err_module_private_definition : Error<\r
+ "definition of %0 must be imported before it is required">;\r
}
let CategoryName = "Documentation Issue" in {
-//===- CIndexUSR.cpp - Clang-C Source Indexing Library --------------------===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file implements the generation and use of USRs from CXEntities.
-//
-//===----------------------------------------------------------------------===//
-
-#include "CIndexer.h"
-#include "CXCursor.h"
-#include "CXString.h"
-#include "clang/AST/DeclTemplate.h"
-#include "clang/AST/DeclVisitor.h"
-#include "clang/Frontend/ASTUnit.h"
-#include "clang/Lex/PreprocessingRecord.h"
-#include "llvm/ADT/SmallString.h"
-#include "llvm/Support/raw_ostream.h"
-
-using namespace clang;
-using namespace clang::cxstring;
-
-//===----------------------------------------------------------------------===//
-// USR generation.
-//===----------------------------------------------------------------------===//
-
-namespace {
-class USRGenerator : public DeclVisitor<USRGenerator> {
- OwningPtr<SmallString<128> > OwnedBuf;
- SmallVectorImpl<char> &Buf;
- llvm::raw_svector_ostream Out;
- bool IgnoreResults;
- ASTContext *Context;
- bool generatedLoc;
-
- llvm::DenseMap<const Type *, unsigned> TypeSubstitutions;
-
-public:
- explicit USRGenerator(ASTContext *Ctx = 0, SmallVectorImpl<char> *extBuf = 0)
- : OwnedBuf(extBuf ? 0 : new SmallString<128>()),
- Buf(extBuf ? *extBuf : *OwnedBuf.get()),
- Out(Buf),
- IgnoreResults(false),
- Context(Ctx),
- generatedLoc(false)
- {
- // Add the USR space prefix.
- Out << "c:";
- }
-
- StringRef str() {
- return Out.str();
- }
-
- USRGenerator* operator->() { return this; }
-
- template <typename T>
- llvm::raw_svector_ostream &operator<<(const T &x) {
- Out << x;
- return Out;
- }
-
- bool ignoreResults() const { return IgnoreResults; }
-
- // Visitation methods from generating USRs from AST elements.
- void VisitDeclContext(DeclContext *D);
- void VisitFieldDecl(FieldDecl *D);
- void VisitFunctionDecl(FunctionDecl *D);
- void VisitNamedDecl(NamedDecl *D);
- void VisitNamespaceDecl(NamespaceDecl *D);
- void VisitNamespaceAliasDecl(NamespaceAliasDecl *D);
- void VisitFunctionTemplateDecl(FunctionTemplateDecl *D);
- void VisitClassTemplateDecl(ClassTemplateDecl *D);
- void VisitObjCContainerDecl(ObjCContainerDecl *CD);
- void VisitObjCMethodDecl(ObjCMethodDecl *MD);
- void VisitObjCPropertyDecl(ObjCPropertyDecl *D);
- void VisitObjCPropertyImplDecl(ObjCPropertyImplDecl *D);
- void VisitTagDecl(TagDecl *D);
- void VisitTypedefDecl(TypedefDecl *D);
- void VisitTemplateTypeParmDecl(TemplateTypeParmDecl *D);
- void VisitVarDecl(VarDecl *D);
- void VisitNonTypeTemplateParmDecl(NonTypeTemplateParmDecl *D);
- void VisitTemplateTemplateParmDecl(TemplateTemplateParmDecl *D);
- void VisitLinkageSpecDecl(LinkageSpecDecl *D) {
- IgnoreResults = true;
- }
- void VisitUsingDirectiveDecl(UsingDirectiveDecl *D) {
- IgnoreResults = true;
- }
- void VisitUsingDecl(UsingDecl *D) {
- IgnoreResults = true;
- }
- void VisitUnresolvedUsingValueDecl(UnresolvedUsingValueDecl *D) {
- IgnoreResults = true;
- }
- void VisitUnresolvedUsingTypenameDecl(UnresolvedUsingTypenameDecl *D) {
- IgnoreResults = true;
- }
-
- /// Generate the string component containing the location of the
- /// declaration.
- bool GenLoc(const Decl *D);
-
- /// String generation methods used both by the visitation methods
- /// and from other clients that want to directly generate USRs. These
- /// methods do not construct complete USRs (which incorporate the parents
- /// of an AST element), but only the fragments concerning the AST element
- /// itself.
-
- /// Generate a USR for an Objective-C class.
- void GenObjCClass(StringRef cls);
- /// Generate a USR for an Objective-C class category.
- void GenObjCCategory(StringRef cls, StringRef cat);
- /// Generate a USR fragment for an Objective-C instance variable. The
- /// complete USR can be created by concatenating the USR for the
- /// encompassing class with this USR fragment.
- void GenObjCIvar(StringRef ivar);
- /// Generate a USR fragment for an Objective-C method.
- void GenObjCMethod(StringRef sel, bool isInstanceMethod);
- /// Generate a USR fragment for an Objective-C property.
- void GenObjCProperty(StringRef prop);
- /// Generate a USR for an Objective-C protocol.
- void GenObjCProtocol(StringRef prot);
-
- void VisitType(QualType T);
- void VisitTemplateParameterList(const TemplateParameterList *Params);
- void VisitTemplateName(TemplateName Name);
- void VisitTemplateArgument(const TemplateArgument &Arg);
-
- /// Emit a Decl's name using NamedDecl::printName() and return true if
- /// the decl had no name.
- bool EmitDeclName(const NamedDecl *D);
-};
-
-} // end anonymous namespace
-
-//===----------------------------------------------------------------------===//
-// Generating USRs from ASTS.
-//===----------------------------------------------------------------------===//
-
-bool USRGenerator::EmitDeclName(const NamedDecl *D) {
- Out.flush();
- const unsigned startSize = Buf.size();
- D->printName(Out);
- Out.flush();
- const unsigned endSize = Buf.size();
- return startSize == endSize;
-}
-
-static bool InAnonymousNamespace(const Decl *D) {
- if (const NamespaceDecl *ND = dyn_cast<NamespaceDecl>(D->getDeclContext()))
- return ND->isAnonymousNamespace();
- return false;
-}
-
-static inline bool ShouldGenerateLocation(const NamedDecl *D) {
- return D->getLinkage() != ExternalLinkage && !InAnonymousNamespace(D);
-}
-
-void USRGenerator::VisitDeclContext(DeclContext *DC) {
- if (NamedDecl *D = dyn_cast<NamedDecl>(DC))
- Visit(D);
-}
-
-void USRGenerator::VisitFieldDecl(FieldDecl *D) {
- // The USR for an ivar declared in a class extension is based on the
- // ObjCInterfaceDecl, not the ObjCCategoryDecl.
- if (ObjCInterfaceDecl *ID = Context->getObjContainingInterface(D))
- Visit(ID);
- else
- VisitDeclContext(D->getDeclContext());
- Out << (isa<ObjCIvarDecl>(D) ? "@" : "@FI@");
- if (EmitDeclName(D)) {
- // Bit fields can be anonymous.
- IgnoreResults = true;
- return;
- }
-}
-
-void USRGenerator::VisitFunctionDecl(FunctionDecl *D) {
- if (ShouldGenerateLocation(D) && GenLoc(D))
- return;
-
- VisitDeclContext(D->getDeclContext());
- if (FunctionTemplateDecl *FunTmpl = D->getDescribedFunctionTemplate()) {
- Out << "@FT@";
- VisitTemplateParameterList(FunTmpl->getTemplateParameters());
- } else
- Out << "@F@";
- D->printName(Out);
-
- ASTContext &Ctx = *Context;
- if (!Ctx.getLangOpts().CPlusPlus || D->isExternC())
- return;
-
- if (const TemplateArgumentList *
- SpecArgs = D->getTemplateSpecializationArgs()) {
- Out << '<';
- for (unsigned I = 0, N = SpecArgs->size(); I != N; ++I) {
- Out << '#';
- VisitTemplateArgument(SpecArgs->get(I));
- }
- Out << '>';
- }
-
- // Mangle in type information for the arguments.
- for (FunctionDecl::param_iterator I = D->param_begin(), E = D->param_end();
- I != E; ++I) {
- Out << '#';
- if (ParmVarDecl *PD = *I)
- VisitType(PD->getType());
- }
- if (D->isVariadic())
- Out << '.';
- Out << '#';
- if (CXXMethodDecl *MD = dyn_cast<CXXMethodDecl>(D)) {
- if (MD->isStatic())
- Out << 'S';
- if (unsigned quals = MD->getTypeQualifiers())
- Out << (char)('0' + quals);
- }
-}
-
-void USRGenerator::VisitNamedDecl(NamedDecl *D) {
- VisitDeclContext(D->getDeclContext());
- Out << "@";
-
- if (EmitDeclName(D)) {
- // The string can be empty if the declaration has no name; e.g., it is
- // the ParmDecl with no name for declaration of a function pointer type,
- // e.g.: void (*f)(void *);
- // In this case, don't generate a USR.
- IgnoreResults = true;
- }
-}
-
-void USRGenerator::VisitVarDecl(VarDecl *D) {
- // VarDecls can be declared 'extern' within a function or method body,
- // but their enclosing DeclContext is the function, not the TU. We need
- // to check the storage class to correctly generate the USR.
- if (ShouldGenerateLocation(D) && GenLoc(D))
- return;
-
- VisitDeclContext(D->getDeclContext());
-
- // Variables always have simple names.
- StringRef s = D->getName();
-
- // The string can be empty if the declaration has no name; e.g., it is
- // the ParmDecl with no name for declaration of a function pointer type, e.g.:
- // void (*f)(void *);
- // In this case, don't generate a USR.
- if (s.empty())
- IgnoreResults = true;
- else
- Out << '@' << s;
-}
-
-void USRGenerator::VisitNonTypeTemplateParmDecl(NonTypeTemplateParmDecl *D) {
- GenLoc(D);
- return;
-}
-
-void USRGenerator::VisitTemplateTemplateParmDecl(TemplateTemplateParmDecl *D) {
- GenLoc(D);
- return;
-}
-
-void USRGenerator::VisitNamespaceDecl(NamespaceDecl *D) {
- if (D->isAnonymousNamespace()) {
- Out << "@aN";
- return;
- }
-
- VisitDeclContext(D->getDeclContext());
- if (!IgnoreResults)
- Out << "@N@" << D->getName();
-}
-
-void USRGenerator::VisitFunctionTemplateDecl(FunctionTemplateDecl *D) {
- VisitFunctionDecl(D->getTemplatedDecl());
-}
-
-void USRGenerator::VisitClassTemplateDecl(ClassTemplateDecl *D) {
- VisitTagDecl(D->getTemplatedDecl());
-}
-
-void USRGenerator::VisitNamespaceAliasDecl(NamespaceAliasDecl *D) {
- VisitDeclContext(D->getDeclContext());
- if (!IgnoreResults)
- Out << "@NA@" << D->getName();
-}
-
-void USRGenerator::VisitObjCMethodDecl(ObjCMethodDecl *D) {
- DeclContext *container = D->getDeclContext();
- if (ObjCProtocolDecl *pd = dyn_cast<ObjCProtocolDecl>(container)) {
- Visit(pd);
- }
- else {
- // The USR for a method declared in a class extension or category is based on
- // the ObjCInterfaceDecl, not the ObjCCategoryDecl.
- ObjCInterfaceDecl *ID = D->getClassInterface();
- if (!ID) {
- IgnoreResults = true;
- return;
- }
- Visit(ID);
- }
- // Ideally we would use 'GenObjCMethod', but this is such a hot path
- // for Objective-C code that we don't want to use
- // DeclarationName::getAsString().
- Out << (D->isInstanceMethod() ? "(im)" : "(cm)");
- DeclarationName N(D->getSelector());
- N.printName(Out);
-}
-
-void USRGenerator::VisitObjCContainerDecl(ObjCContainerDecl *D) {
- switch (D->getKind()) {
- default:
- llvm_unreachable("Invalid ObjC container.");
- case Decl::ObjCInterface:
- case Decl::ObjCImplementation:
- GenObjCClass(D->getName());
- break;
- case Decl::ObjCCategory: {
- ObjCCategoryDecl *CD = cast<ObjCCategoryDecl>(D);
- ObjCInterfaceDecl *ID = CD->getClassInterface();
- if (!ID) {
- // Handle invalid code where the @interface might not
- // have been specified.
- // FIXME: We should be able to generate this USR even if the
- // @interface isn't available.
- IgnoreResults = true;
- return;
- }
- // Specially handle class extensions, which are anonymous categories.
- // We want to mangle in the location to uniquely distinguish them.
- if (CD->IsClassExtension()) {
- Out << "objc(ext)" << ID->getName() << '@';
- GenLoc(CD);
- }
- else
- GenObjCCategory(ID->getName(), CD->getName());
-
- break;
- }
- case Decl::ObjCCategoryImpl: {
- ObjCCategoryImplDecl *CD = cast<ObjCCategoryImplDecl>(D);
- ObjCInterfaceDecl *ID = CD->getClassInterface();
- if (!ID) {
- // Handle invalid code where the @interface might not
- // have been specified.
- // FIXME: We should be able to generate this USR even if the
- // @interface isn't available.
- IgnoreResults = true;
- return;
- }
- GenObjCCategory(ID->getName(), CD->getName());
- break;
- }
- case Decl::ObjCProtocol:
- GenObjCProtocol(cast<ObjCProtocolDecl>(D)->getName());
- break;
- }
-}
-
-void USRGenerator::VisitObjCPropertyDecl(ObjCPropertyDecl *D) {
- // The USR for a property declared in a class extension or category is based
- // on the ObjCInterfaceDecl, not the ObjCCategoryDecl.
- if (ObjCInterfaceDecl *ID = Context->getObjContainingInterface(D))
- Visit(ID);
- else
- Visit(cast<Decl>(D->getDeclContext()));
- GenObjCProperty(D->getName());
-}
-
-void USRGenerator::VisitObjCPropertyImplDecl(ObjCPropertyImplDecl *D) {
- if (ObjCPropertyDecl *PD = D->getPropertyDecl()) {
- VisitObjCPropertyDecl(PD);
- return;
- }
-
- IgnoreResults = true;
-}
-
-void USRGenerator::VisitTagDecl(TagDecl *D) {
- // Add the location of the tag decl to handle resolution across
- // translation units.
- if (ShouldGenerateLocation(D) && GenLoc(D))
- return;
-
- D = D->getCanonicalDecl();
- VisitDeclContext(D->getDeclContext());
-
- bool AlreadyStarted = false;
- if (CXXRecordDecl *CXXRecord = dyn_cast<CXXRecordDecl>(D)) {
- if (ClassTemplateDecl *ClassTmpl = CXXRecord->getDescribedClassTemplate()) {
- AlreadyStarted = true;
-
- switch (D->getTagKind()) {
- case TTK_Struct: Out << "@ST"; break;
- case TTK_Class: Out << "@CT"; break;
- case TTK_Union: Out << "@UT"; break;
- case TTK_Enum: llvm_unreachable("enum template");
- }
- VisitTemplateParameterList(ClassTmpl->getTemplateParameters());
- } else if (ClassTemplatePartialSpecializationDecl *PartialSpec
- = dyn_cast<ClassTemplatePartialSpecializationDecl>(CXXRecord)) {
- AlreadyStarted = true;
-
- switch (D->getTagKind()) {
- case TTK_Struct: Out << "@SP"; break;
- case TTK_Class: Out << "@CP"; break;
- case TTK_Union: Out << "@UP"; break;
- case TTK_Enum: llvm_unreachable("enum partial specialization");
- }
- VisitTemplateParameterList(PartialSpec->getTemplateParameters());
- }
- }
-
- if (!AlreadyStarted) {
- switch (D->getTagKind()) {
- case TTK_Struct: Out << "@S"; break;
- case TTK_Class: Out << "@C"; break;
- case TTK_Union: Out << "@U"; break;
- case TTK_Enum: Out << "@E"; break;
- }
- }
-
- Out << '@';
- Out.flush();
- assert(Buf.size() > 0);
- const unsigned off = Buf.size() - 1;
-
- if (EmitDeclName(D)) {
- if (const TypedefNameDecl *TD = D->getTypedefNameForAnonDecl()) {
- Buf[off] = 'A';
- Out << '@' << *TD;
- }
- else
- Buf[off] = 'a';
- }
-
- // For a class template specialization, mangle the template arguments.
- if (ClassTemplateSpecializationDecl *Spec
- = dyn_cast<ClassTemplateSpecializationDecl>(D)) {
- const TemplateArgumentList &Args = Spec->getTemplateInstantiationArgs();
- Out << '>';
- for (unsigned I = 0, N = Args.size(); I != N; ++I) {
- Out << '#';
- VisitTemplateArgument(Args.get(I));
- }
- }
-}
-
-void USRGenerator::VisitTypedefDecl(TypedefDecl *D) {
- if (ShouldGenerateLocation(D) && GenLoc(D))
- return;
- DeclContext *DC = D->getDeclContext();
- if (NamedDecl *DCN = dyn_cast<NamedDecl>(DC))
- Visit(DCN);
- Out << "@T@";
- Out << D->getName();
-}
-
-void USRGenerator::VisitTemplateTypeParmDecl(TemplateTypeParmDecl *D) {
- GenLoc(D);
- return;
-}
-
-bool USRGenerator::GenLoc(const Decl *D) {
- if (generatedLoc)
- return IgnoreResults;
- generatedLoc = true;
-
- // Guard against null declarations in invalid code.
- if (!D) {
- IgnoreResults = true;
- return true;
- }
-
- // Use the location of canonical decl.
- D = D->getCanonicalDecl();
-
- const SourceManager &SM = Context->getSourceManager();
- SourceLocation L = D->getLocStart();
- if (L.isInvalid()) {
- IgnoreResults = true;
- return true;
- }
- L = SM.getExpansionLoc(L);
- const std::pair<FileID, unsigned> &Decomposed = SM.getDecomposedLoc(L);
- const FileEntry *FE = SM.getFileEntryForID(Decomposed.first);
- if (FE) {
- Out << llvm::sys::path::filename(FE->getName());
- }
- else {
- // This case really isn't interesting.
- IgnoreResults = true;
- return true;
- }
- // Use the offest into the FileID to represent the location. Using
- // a line/column can cause us to look back at the original source file,
- // which is expensive.
- Out << '@' << Decomposed.second;
- return IgnoreResults;
-}
-
-void USRGenerator::VisitType(QualType T) {
- // This method mangles in USR information for types. It can possibly
- // just reuse the naming-mangling logic used by codegen, although the
- // requirements for USRs might not be the same.
- ASTContext &Ctx = *Context;
-
- do {
- T = Ctx.getCanonicalType(T);
- Qualifiers Q = T.getQualifiers();
- unsigned qVal = 0;
- if (Q.hasConst())
- qVal |= 0x1;
- if (Q.hasVolatile())
- qVal |= 0x2;
- if (Q.hasRestrict())
- qVal |= 0x4;
- if(qVal)
- Out << ((char) ('0' + qVal));
-
- // Mangle in ObjC GC qualifiers?
-
- if (const PackExpansionType *Expansion = T->getAs<PackExpansionType>()) {
- Out << 'P';
- T = Expansion->getPattern();
- }
-
- if (const BuiltinType *BT = T->getAs<BuiltinType>()) {
- unsigned char c = '\0';
- switch (BT->getKind()) {
- case BuiltinType::Void:
- c = 'v'; break;
- case BuiltinType::Bool:
- c = 'b'; break;
- case BuiltinType::Char_U:
- case BuiltinType::UChar:
- c = 'c'; break;
- case BuiltinType::Char16:
- c = 'q'; break;
- case BuiltinType::Char32:
- c = 'w'; break;
- case BuiltinType::UShort:
- c = 's'; break;
- case BuiltinType::UInt:
- c = 'i'; break;
- case BuiltinType::ULong:
- c = 'l'; break;
- case BuiltinType::ULongLong:
- c = 'k'; break;
- case BuiltinType::UInt128:
- c = 'j'; break;
- case BuiltinType::Char_S:
- case BuiltinType::SChar:
- c = 'C'; break;
- case BuiltinType::WChar_S:
- case BuiltinType::WChar_U:
- c = 'W'; break;
- case BuiltinType::Short:
- c = 'S'; break;
- case BuiltinType::Int:
- c = 'I'; break;
- case BuiltinType::Long:
- c = 'L'; break;
- case BuiltinType::LongLong:
- c = 'K'; break;
- case BuiltinType::Int128:
- c = 'J'; break;
- case BuiltinType::Half:
- c = 'h'; break;
- case BuiltinType::Float:
- c = 'f'; break;
- case BuiltinType::Double:
- c = 'd'; break;
- case BuiltinType::LongDouble:
- c = 'D'; break;
- case BuiltinType::NullPtr:
- c = 'n'; break;
-#define BUILTIN_TYPE(Id, SingletonId)
-#define PLACEHOLDER_TYPE(Id, SingletonId) case BuiltinType::Id:
-#include "clang/AST/BuiltinTypes.def"
- case BuiltinType::Dependent:
- IgnoreResults = true;
- return;
- case BuiltinType::ObjCId:
- c = 'o'; break;
- case BuiltinType::ObjCClass:
- c = 'O'; break;
- case BuiltinType::ObjCSel:
- c = 'e'; break;
- }
- Out << c;
- return;
- }
-
- // If we have already seen this (non-built-in) type, use a substitution
- // encoding.
- llvm::DenseMap<const Type *, unsigned>::iterator Substitution
- = TypeSubstitutions.find(T.getTypePtr());
- if (Substitution != TypeSubstitutions.end()) {
- Out << 'S' << Substitution->second << '_';
- return;
- } else {
- // Record this as a substitution.
- unsigned Number = TypeSubstitutions.size();
- TypeSubstitutions[T.getTypePtr()] = Number;
- }
-
- if (const PointerType *PT = T->getAs<PointerType>()) {
- Out << '*';
- T = PT->getPointeeType();
- continue;
- }
- if (const ReferenceType *RT = T->getAs<ReferenceType>()) {
- Out << '&';
- T = RT->getPointeeType();
- continue;
- }
- if (const FunctionProtoType *FT = T->getAs<FunctionProtoType>()) {
- Out << 'F';
- VisitType(FT->getResultType());
- for (FunctionProtoType::arg_type_iterator
- I = FT->arg_type_begin(), E = FT->arg_type_end(); I!=E; ++I) {
- VisitType(*I);
- }
- if (FT->isVariadic())
- Out << '.';
- return;
- }
- if (const BlockPointerType *BT = T->getAs<BlockPointerType>()) {
- Out << 'B';
- T = BT->getPointeeType();
- continue;
- }
- if (const ComplexType *CT = T->getAs<ComplexType>()) {
- Out << '<';
- T = CT->getElementType();
- continue;
- }
- if (const TagType *TT = T->getAs<TagType>()) {
- Out << '$';
- VisitTagDecl(TT->getDecl());
- return;
- }
- if (const TemplateTypeParmType *TTP = T->getAs<TemplateTypeParmType>()) {
- Out << 't' << TTP->getDepth() << '.' << TTP->getIndex();
- return;
- }
- if (const TemplateSpecializationType *Spec
- = T->getAs<TemplateSpecializationType>()) {
- Out << '>';
- VisitTemplateName(Spec->getTemplateName());
- Out << Spec->getNumArgs();
- for (unsigned I = 0, N = Spec->getNumArgs(); I != N; ++I)
- VisitTemplateArgument(Spec->getArg(I));
- return;
- }
-
- // Unhandled type.
- Out << ' ';
- break;
- } while (true);
-}
-
-void USRGenerator::VisitTemplateParameterList(
- const TemplateParameterList *Params) {
- if (!Params)
- return;
- Out << '>' << Params->size();
- for (TemplateParameterList::const_iterator P = Params->begin(),
- PEnd = Params->end();
- P != PEnd; ++P) {
- Out << '#';
- if (isa<TemplateTypeParmDecl>(*P)) {
- if (cast<TemplateTypeParmDecl>(*P)->isParameterPack())
- Out<< 'p';
- Out << 'T';
- continue;
- }
-
- if (NonTypeTemplateParmDecl *NTTP = dyn_cast<NonTypeTemplateParmDecl>(*P)) {
- if (NTTP->isParameterPack())
- Out << 'p';
- Out << 'N';
- VisitType(NTTP->getType());
- continue;
- }
-
- TemplateTemplateParmDecl *TTP = cast<TemplateTemplateParmDecl>(*P);
- if (TTP->isParameterPack())
- Out << 'p';
- Out << 't';
- VisitTemplateParameterList(TTP->getTemplateParameters());
- }
-}
-
-void USRGenerator::VisitTemplateName(TemplateName Name) {
- if (TemplateDecl *Template = Name.getAsTemplateDecl()) {
- if (TemplateTemplateParmDecl *TTP
- = dyn_cast<TemplateTemplateParmDecl>(Template)) {
- Out << 't' << TTP->getDepth() << '.' << TTP->getIndex();
- return;
- }
-
- Visit(Template);
- return;
- }
-
- // FIXME: Visit dependent template names.
-}
-
-void USRGenerator::VisitTemplateArgument(const TemplateArgument &Arg) {
- switch (Arg.getKind()) {
- case TemplateArgument::Null:
- break;
-
- case TemplateArgument::Declaration:
- if (Decl *D = Arg.getAsDecl())
- Visit(D);
- break;
-
- case TemplateArgument::TemplateExpansion:
- Out << 'P'; // pack expansion of...
- // Fall through
- case TemplateArgument::Template:
- VisitTemplateName(Arg.getAsTemplateOrTemplatePattern());
- break;
-
- case TemplateArgument::Expression:
- // FIXME: Visit expressions.
- break;
-
- case TemplateArgument::Pack:
- Out << 'p' << Arg.pack_size();
- for (TemplateArgument::pack_iterator P = Arg.pack_begin(), PEnd = Arg.pack_end();
- P != PEnd; ++P)
- VisitTemplateArgument(*P);
- break;
-
- case TemplateArgument::Type:
- VisitType(Arg.getAsType());
- break;
-
- case TemplateArgument::Integral:
- Out << 'V';
- VisitType(Arg.getIntegralType());
- Out << Arg.getAsIntegral();
- break;
- }
-}
-
-//===----------------------------------------------------------------------===//
-// General purpose USR generation methods.
-//===----------------------------------------------------------------------===//
-
-void USRGenerator::GenObjCClass(StringRef cls) {
- Out << "objc(cs)" << cls;
-}
-
-void USRGenerator::GenObjCCategory(StringRef cls, StringRef cat) {
- Out << "objc(cy)" << cls << '@' << cat;
-}
-
-void USRGenerator::GenObjCIvar(StringRef ivar) {
- Out << '@' << ivar;
-}
-
-void USRGenerator::GenObjCMethod(StringRef meth, bool isInstanceMethod) {
- Out << (isInstanceMethod ? "(im)" : "(cm)") << meth;
-}
-
-void USRGenerator::GenObjCProperty(StringRef prop) {
- Out << "(py)" << prop;
-}
-
-void USRGenerator::GenObjCProtocol(StringRef prot) {
- Out << "objc(pl)" << prot;
-}
-
-//===----------------------------------------------------------------------===//
-// API hooks.
-//===----------------------------------------------------------------------===//
-
-static inline StringRef extractUSRSuffix(StringRef s) {
- return s.startswith("c:") ? s.substr(2) : "";
-}
-
-bool cxcursor::getDeclCursorUSR(const Decl *D, SmallVectorImpl<char> &Buf) {
- // Don't generate USRs for things with invalid locations.
- if (!D || D->getLocStart().isInvalid())
- return true;
-
- // Check if the cursor has 'NoLinkage'.
- if (const NamedDecl *ND = dyn_cast<NamedDecl>(D))
- switch (ND->getLinkage()) {
- case ExternalLinkage:
- // Generate USRs for all entities with external linkage.
- break;
- case NoLinkage:
- case UniqueExternalLinkage:
- // We allow enums, typedefs, and structs that have no linkage to
- // have USRs that are anchored to the file they were defined in
- // (e.g., the header). This is a little gross, but in principal
- // enums/anonymous structs/etc. defined in a common header file
- // are referred to across multiple translation units.
- if (isa<TagDecl>(ND) || isa<TypedefDecl>(ND) ||
- isa<EnumConstantDecl>(ND) || isa<FieldDecl>(ND) ||
- isa<VarDecl>(ND) || isa<NamespaceDecl>(ND))
- break;
- // Fall-through.
- case InternalLinkage:
- if (isa<FunctionDecl>(ND))
- break;
- }
-
- {
- USRGenerator UG(&D->getASTContext(), &Buf);
- UG->Visit(const_cast<Decl*>(D));
-
- if (UG->ignoreResults())
- return true;
- }
-
- return false;
-}
-
-extern "C" {
-
-CXString clang_getCursorUSR(CXCursor C) {
- const CXCursorKind &K = clang_getCursorKind(C);
-
- if (clang_isDeclaration(K)) {
- Decl *D = cxcursor::getCursorDecl(C);
- if (!D)
- return createCXString("");
-
- CXTranslationUnit TU = cxcursor::getCursorTU(C);
- if (!TU)
- return createCXString("");
-
- CXStringBuf *buf = cxstring::getCXStringBuf(TU);
- if (!buf)
- return createCXString("");
-
- bool Ignore = cxcursor::getDeclCursorUSR(D, buf->Data);
- if (Ignore) {
- disposeCXStringBuf(buf);
- return createCXString("");
- }
-
- // Return the C-string, but don't make a copy since it is already in
- // the string buffer.
- buf->Data.push_back('\0');
- return createCXString(buf);
- }
-
- if (K == CXCursor_MacroDefinition) {
- CXTranslationUnit TU = cxcursor::getCursorTU(C);
- if (!TU)
- return createCXString("");
-
- CXStringBuf *buf = cxstring::getCXStringBuf(TU);
- if (!buf)
- return createCXString("");
-
- {
- USRGenerator UG(&cxcursor::getCursorASTUnit(C)->getASTContext(),
- &buf->Data);
- UG << "macro@"
- << cxcursor::getCursorMacroDefinition(C)->getName()->getNameStart();
- }
- buf->Data.push_back('\0');
- return createCXString(buf);
- }
-
- return createCXString("");
-}
-
-CXString clang_constructUSR_ObjCIvar(const char *name, CXString classUSR) {
- USRGenerator UG;
- UG << extractUSRSuffix(clang_getCString(classUSR));
- UG->GenObjCIvar(name);
- return createCXString(UG.str(), true);
-}
-
-CXString clang_constructUSR_ObjCMethod(const char *name,
- unsigned isInstanceMethod,
- CXString classUSR) {
- USRGenerator UG;
- UG << extractUSRSuffix(clang_getCString(classUSR));
- UG->GenObjCMethod(name, isInstanceMethod);
- return createCXString(UG.str(), true);
-}
-
-CXString clang_constructUSR_ObjCClass(const char *name) {
- USRGenerator UG;
- UG->GenObjCClass(name);
- return createCXString(UG.str(), true);
-}
-
-CXString clang_constructUSR_ObjCProtocol(const char *name) {
- USRGenerator UG;
- UG->GenObjCProtocol(name);
- return createCXString(UG.str(), true);
-}
-
-CXString clang_constructUSR_ObjCCategory(const char *class_name,
- const char *category_name) {
- USRGenerator UG;
- UG->GenObjCCategory(class_name, category_name);
- return createCXString(UG.str(), true);
-}
-
-CXString clang_constructUSR_ObjCProperty(const char *property,
- CXString classUSR) {
- USRGenerator UG;
- UG << extractUSRSuffix(clang_getCString(classUSR));
- UG->GenObjCProperty(property);
- return createCXString(UG.str(), true);
-}
-
-} // end extern "C"
+//===- CIndexUSR.cpp - Clang-C Source Indexing Library --------------------===//\r
+//\r
+// The LLVM Compiler Infrastructure\r
+//\r
+// This file is distributed under the University of Illinois Open Source\r
+// License. See LICENSE.TXT for details.\r
+//\r
+//===----------------------------------------------------------------------===//\r
+//\r
+// This file implements the generation and use of USRs from CXEntities.\r
+//\r
+//===----------------------------------------------------------------------===//\r
+\r
+#include "CIndexer.h"\r
+#include "CXCursor.h"\r
+#include "CXString.h"\r
+#include "clang/AST/DeclTemplate.h"\r
+#include "clang/AST/DeclVisitor.h"\r
+#include "clang/Frontend/ASTUnit.h"\r
+#include "clang/Lex/PreprocessingRecord.h"\r
+#include "llvm/ADT/SmallString.h"\r
+#include "llvm/Support/raw_ostream.h"\r
+\r
+using namespace clang;\r
+using namespace clang::cxstring;\r
+\r
+//===----------------------------------------------------------------------===//\r
+// USR generation.\r
+//===----------------------------------------------------------------------===//\r
+\r
+namespace {\r
+class USRGenerator : public DeclVisitor<USRGenerator> {\r
+ OwningPtr<SmallString<128> > OwnedBuf;\r
+ SmallVectorImpl<char> &Buf;\r
+ llvm::raw_svector_ostream Out;\r
+ bool IgnoreResults;\r
+ ASTContext *Context;\r
+ bool generatedLoc;\r
+ \r
+ llvm::DenseMap<const Type *, unsigned> TypeSubstitutions;\r
+ \r
+public:\r
+ explicit USRGenerator(ASTContext *Ctx = 0, SmallVectorImpl<char> *extBuf = 0)\r
+ : OwnedBuf(extBuf ? 0 : new SmallString<128>()),\r
+ Buf(extBuf ? *extBuf : *OwnedBuf.get()),\r
+ Out(Buf),\r
+ IgnoreResults(false),\r
+ Context(Ctx),\r
+ generatedLoc(false)\r
+ {\r
+ // Add the USR space prefix.\r
+ Out << "c:";\r
+ }\r
+\r
+ StringRef str() {\r
+ return Out.str();\r
+ }\r
+\r
+ USRGenerator* operator->() { return this; }\r
+\r
+ template <typename T>\r
+ llvm::raw_svector_ostream &operator<<(const T &x) {\r
+ Out << x;\r
+ return Out;\r
+ }\r
+\r
+ bool ignoreResults() const { return IgnoreResults; }\r
+\r
+ // Visitation methods from generating USRs from AST elements.\r
+ void VisitDeclContext(DeclContext *D);\r
+ void VisitFieldDecl(FieldDecl *D);\r
+ void VisitFunctionDecl(FunctionDecl *D);\r
+ void VisitNamedDecl(NamedDecl *D);\r
+ void VisitNamespaceDecl(NamespaceDecl *D);\r
+ void VisitNamespaceAliasDecl(NamespaceAliasDecl *D);\r
+ void VisitFunctionTemplateDecl(FunctionTemplateDecl *D);\r
+ void VisitClassTemplateDecl(ClassTemplateDecl *D);\r
+ void VisitObjCContainerDecl(ObjCContainerDecl *CD);\r
+ void VisitObjCMethodDecl(ObjCMethodDecl *MD);\r
+ void VisitObjCPropertyDecl(ObjCPropertyDecl *D);\r
+ void VisitObjCPropertyImplDecl(ObjCPropertyImplDecl *D);\r
+ void VisitTagDecl(TagDecl *D);\r
+ void VisitTypedefDecl(TypedefDecl *D);\r
+ void VisitTemplateTypeParmDecl(TemplateTypeParmDecl *D);\r
+ void VisitVarDecl(VarDecl *D);\r
+ void VisitNonTypeTemplateParmDecl(NonTypeTemplateParmDecl *D);\r
+ void VisitTemplateTemplateParmDecl(TemplateTemplateParmDecl *D);\r
+ void VisitLinkageSpecDecl(LinkageSpecDecl *D) {\r
+ IgnoreResults = true;\r
+ }\r
+ void VisitUsingDirectiveDecl(UsingDirectiveDecl *D) {\r
+ IgnoreResults = true;\r
+ }\r
+ void VisitUsingDecl(UsingDecl *D) { \r
+ IgnoreResults = true;\r
+ }\r
+ void VisitUnresolvedUsingValueDecl(UnresolvedUsingValueDecl *D) { \r
+ IgnoreResults = true;\r
+ }\r
+ void VisitUnresolvedUsingTypenameDecl(UnresolvedUsingTypenameDecl *D) { \r
+ IgnoreResults = true;\r
+ }\r
+ \r
+ /// Generate the string component containing the location of the\r
+ /// declaration.\r
+ bool GenLoc(const Decl *D);\r
+\r
+ /// String generation methods used both by the visitation methods\r
+ /// and from other clients that want to directly generate USRs. These\r
+ /// methods do not construct complete USRs (which incorporate the parents\r
+ /// of an AST element), but only the fragments concerning the AST element\r
+ /// itself.\r
+\r
+ /// Generate a USR for an Objective-C class.\r
+ void GenObjCClass(StringRef cls);\r
+ /// Generate a USR for an Objective-C class category.\r
+ void GenObjCCategory(StringRef cls, StringRef cat);\r
+ /// Generate a USR fragment for an Objective-C instance variable. The\r
+ /// complete USR can be created by concatenating the USR for the\r
+ /// encompassing class with this USR fragment.\r
+ void GenObjCIvar(StringRef ivar);\r
+ /// Generate a USR fragment for an Objective-C method.\r
+ void GenObjCMethod(StringRef sel, bool isInstanceMethod);\r
+ /// Generate a USR fragment for an Objective-C property.\r
+ void GenObjCProperty(StringRef prop);\r
+ /// Generate a USR for an Objective-C protocol.\r
+ void GenObjCProtocol(StringRef prot);\r
+\r
+ void VisitType(QualType T);\r
+ void VisitTemplateParameterList(const TemplateParameterList *Params);\r
+ void VisitTemplateName(TemplateName Name);\r
+ void VisitTemplateArgument(const TemplateArgument &Arg);\r
+ \r
+ /// Emit a Decl's name using NamedDecl::printName() and return true if\r
+ /// the decl had no name.\r
+ bool EmitDeclName(const NamedDecl *D);\r
+};\r
+\r
+} // end anonymous namespace\r
+\r
+//===----------------------------------------------------------------------===//\r
+// Generating USRs from ASTS.\r
+//===----------------------------------------------------------------------===//\r
+\r
+bool USRGenerator::EmitDeclName(const NamedDecl *D) {\r
+ Out.flush();\r
+ const unsigned startSize = Buf.size();\r
+ D->printName(Out);\r
+ Out.flush();\r
+ const unsigned endSize = Buf.size();\r
+ return startSize == endSize;\r
+}\r
+\r
+static bool InAnonymousNamespace(const Decl *D) {\r
+ if (const NamespaceDecl *ND = dyn_cast<NamespaceDecl>(D->getDeclContext()))\r
+ return ND->isAnonymousNamespace();\r
+ return false;\r
+}\r
+\r
+static inline bool ShouldGenerateLocation(const NamedDecl *D) {\r
+ return D->getLinkage() != ExternalLinkage && !InAnonymousNamespace(D);\r
+}\r
+\r
+void USRGenerator::VisitDeclContext(DeclContext *DC) {\r
+ if (NamedDecl *D = dyn_cast<NamedDecl>(DC))\r
+ Visit(D);\r
+}\r
+\r
+void USRGenerator::VisitFieldDecl(FieldDecl *D) {\r
+ // The USR for an ivar declared in a class extension is based on the\r
+ // ObjCInterfaceDecl, not the ObjCCategoryDecl.\r
+ if (ObjCInterfaceDecl *ID = Context->getObjContainingInterface(D))\r
+ Visit(ID);\r
+ else\r
+ VisitDeclContext(D->getDeclContext());\r
+ Out << (isa<ObjCIvarDecl>(D) ? "@" : "@FI@");\r
+ if (EmitDeclName(D)) {\r
+ // Bit fields can be anonymous.\r
+ IgnoreResults = true;\r
+ return;\r
+ }\r
+}\r
+\r
+void USRGenerator::VisitFunctionDecl(FunctionDecl *D) {\r
+ if (ShouldGenerateLocation(D) && GenLoc(D))\r
+ return;\r
+\r
+ VisitDeclContext(D->getDeclContext());\r
+ if (FunctionTemplateDecl *FunTmpl = D->getDescribedFunctionTemplate()) {\r
+ Out << "@FT@";\r
+ VisitTemplateParameterList(FunTmpl->getTemplateParameters());\r
+ } else\r
+ Out << "@F@";\r
+ D->printName(Out);\r
+\r
+ ASTContext &Ctx = *Context;\r
+ if (!Ctx.getLangOpts().CPlusPlus || D->isExternC())\r
+ return;\r
+\r
+ if (const TemplateArgumentList *\r
+ SpecArgs = D->getTemplateSpecializationArgs()) {\r
+ Out << '<';\r
+ for (unsigned I = 0, N = SpecArgs->size(); I != N; ++I) {\r
+ Out << '#';\r
+ VisitTemplateArgument(SpecArgs->get(I));\r
+ }\r
+ Out << '>';\r
+ }\r
+\r
+ // Mangle in type information for the arguments.\r
+ for (FunctionDecl::param_iterator I = D->param_begin(), E = D->param_end();\r
+ I != E; ++I) {\r
+ Out << '#';\r
+ if (ParmVarDecl *PD = *I)\r
+ VisitType(PD->getType());\r
+ }\r
+ if (D->isVariadic())\r
+ Out << '.';\r
+ Out << '#';\r
+ if (CXXMethodDecl *MD = dyn_cast<CXXMethodDecl>(D)) {\r
+ if (MD->isStatic())\r
+ Out << 'S';\r
+ if (unsigned quals = MD->getTypeQualifiers())\r
+ Out << (char)('0' + quals);\r
+ }\r
+}\r
+\r
+void USRGenerator::VisitNamedDecl(NamedDecl *D) {\r
+ VisitDeclContext(D->getDeclContext());\r
+ Out << "@";\r
+\r
+ if (EmitDeclName(D)) {\r
+ // The string can be empty if the declaration has no name; e.g., it is\r
+ // the ParmDecl with no name for declaration of a function pointer type,\r
+ // e.g.: void (*f)(void *);\r
+ // In this case, don't generate a USR.\r
+ IgnoreResults = true;\r
+ }\r
+}\r
+\r
+void USRGenerator::VisitVarDecl(VarDecl *D) {\r
+ // VarDecls can be declared 'extern' within a function or method body,\r
+ // but their enclosing DeclContext is the function, not the TU. We need\r
+ // to check the storage class to correctly generate the USR.\r
+ if (ShouldGenerateLocation(D) && GenLoc(D))\r
+ return;\r
+\r
+ VisitDeclContext(D->getDeclContext());\r
+\r
+ // Variables always have simple names.\r
+ StringRef s = D->getName();\r
+\r
+ // The string can be empty if the declaration has no name; e.g., it is\r
+ // the ParmDecl with no name for declaration of a function pointer type, e.g.:\r
+ // void (*f)(void *);\r
+ // In this case, don't generate a USR.\r
+ if (s.empty())\r
+ IgnoreResults = true;\r
+ else\r
+ Out << '@' << s;\r
+}\r
+\r
+void USRGenerator::VisitNonTypeTemplateParmDecl(NonTypeTemplateParmDecl *D) {\r
+ GenLoc(D);\r
+ return;\r
+}\r
+\r
+void USRGenerator::VisitTemplateTemplateParmDecl(TemplateTemplateParmDecl *D) {\r
+ GenLoc(D);\r
+ return;\r
+}\r
+\r
+void USRGenerator::VisitNamespaceDecl(NamespaceDecl *D) {\r
+ if (D->isAnonymousNamespace()) {\r
+ Out << "@aN";\r
+ return;\r
+ }\r
+\r
+ VisitDeclContext(D->getDeclContext());\r
+ if (!IgnoreResults)\r
+ Out << "@N@" << D->getName();\r
+}\r
+\r
+void USRGenerator::VisitFunctionTemplateDecl(FunctionTemplateDecl *D) {\r
+ VisitFunctionDecl(D->getTemplatedDecl());\r
+}\r
+\r
+void USRGenerator::VisitClassTemplateDecl(ClassTemplateDecl *D) {\r
+ VisitTagDecl(D->getTemplatedDecl());\r
+}\r
+\r
+void USRGenerator::VisitNamespaceAliasDecl(NamespaceAliasDecl *D) {\r
+ VisitDeclContext(D->getDeclContext());\r
+ if (!IgnoreResults)\r
+ Out << "@NA@" << D->getName(); \r
+}\r
+\r
+void USRGenerator::VisitObjCMethodDecl(ObjCMethodDecl *D) {\r
+ DeclContext *container = D->getDeclContext();\r
+ if (ObjCProtocolDecl *pd = dyn_cast<ObjCProtocolDecl>(container)) {\r
+ Visit(pd);\r
+ }\r
+ else {\r
+ // The USR for a method declared in a class extension or category is based on\r
+ // the ObjCInterfaceDecl, not the ObjCCategoryDecl.\r
+ ObjCInterfaceDecl *ID = D->getClassInterface();\r
+ if (!ID) {\r
+ IgnoreResults = true;\r
+ return;\r
+ }\r
+ Visit(ID);\r
+ }\r
+ // Ideally we would use 'GenObjCMethod', but this is such a hot path\r
+ // for Objective-C code that we don't want to use\r
+ // DeclarationName::getAsString().\r
+ Out << (D->isInstanceMethod() ? "(im)" : "(cm)");\r
+ DeclarationName N(D->getSelector());\r
+ N.printName(Out);\r
+}\r
+\r
+void USRGenerator::VisitObjCContainerDecl(ObjCContainerDecl *D) {\r
+ switch (D->getKind()) {\r
+ default:\r
+ llvm_unreachable("Invalid ObjC container.");\r
+ case Decl::ObjCInterface:\r
+ case Decl::ObjCImplementation:\r
+ GenObjCClass(D->getName());\r
+ break;\r
+ case Decl::ObjCCategory: {\r
+ ObjCCategoryDecl *CD = cast<ObjCCategoryDecl>(D);\r
+ ObjCInterfaceDecl *ID = CD->getClassInterface();\r
+ if (!ID) {\r
+ // Handle invalid code where the @interface might not\r
+ // have been specified.\r
+ // FIXME: We should be able to generate this USR even if the\r
+ // @interface isn't available.\r
+ IgnoreResults = true;\r
+ return;\r
+ }\r
+ // Specially handle class extensions, which are anonymous categories.\r
+ // We want to mangle in the location to uniquely distinguish them.\r
+ if (CD->IsClassExtension()) {\r
+ Out << "objc(ext)" << ID->getName() << '@';\r
+ GenLoc(CD);\r
+ }\r
+ else\r
+ GenObjCCategory(ID->getName(), CD->getName());\r
+\r
+ break;\r
+ }\r
+ case Decl::ObjCCategoryImpl: {\r
+ ObjCCategoryImplDecl *CD = cast<ObjCCategoryImplDecl>(D);\r
+ ObjCInterfaceDecl *ID = CD->getClassInterface();\r
+ if (!ID) {\r
+ // Handle invalid code where the @interface might not\r
+ // have been specified.\r
+ // FIXME: We should be able to generate this USR even if the\r
+ // @interface isn't available.\r
+ IgnoreResults = true;\r
+ return;\r
+ }\r
+ GenObjCCategory(ID->getName(), CD->getName());\r
+ break;\r
+ }\r
+ case Decl::ObjCProtocol:\r
+ GenObjCProtocol(cast<ObjCProtocolDecl>(D)->getName());\r
+ break;\r
+ }\r
+}\r
+\r
+void USRGenerator::VisitObjCPropertyDecl(ObjCPropertyDecl *D) {\r
+ // The USR for a property declared in a class extension or category is based\r
+ // on the ObjCInterfaceDecl, not the ObjCCategoryDecl.\r
+ if (ObjCInterfaceDecl *ID = Context->getObjContainingInterface(D))\r
+ Visit(ID);\r
+ else\r
+ Visit(cast<Decl>(D->getDeclContext()));\r
+ GenObjCProperty(D->getName());\r
+}\r
+\r
+void USRGenerator::VisitObjCPropertyImplDecl(ObjCPropertyImplDecl *D) {\r
+ if (ObjCPropertyDecl *PD = D->getPropertyDecl()) {\r
+ VisitObjCPropertyDecl(PD);\r
+ return;\r
+ }\r
+\r
+ IgnoreResults = true;\r
+}\r
+\r
+void USRGenerator::VisitTagDecl(TagDecl *D) {\r
+ // Add the location of the tag decl to handle resolution across\r
+ // translation units.\r
+ if (ShouldGenerateLocation(D) && GenLoc(D))\r
+ return;\r
+\r
+ D = D->getCanonicalDecl();\r
+ VisitDeclContext(D->getDeclContext());\r
+\r
+ bool AlreadyStarted = false;\r
+ if (CXXRecordDecl *CXXRecord = dyn_cast<CXXRecordDecl>(D)) {\r
+ if (ClassTemplateDecl *ClassTmpl = CXXRecord->getDescribedClassTemplate()) {\r
+ AlreadyStarted = true;\r
+ \r
+ switch (D->getTagKind()) {\r
+ case TTK_Interface:\r
+ case TTK_Struct: Out << "@ST"; break;\r
+ case TTK_Class: Out << "@CT"; break;\r
+ case TTK_Union: Out << "@UT"; break;\r
+ case TTK_Enum: llvm_unreachable("enum template");\r
+ }\r
+ VisitTemplateParameterList(ClassTmpl->getTemplateParameters());\r
+ } else if (ClassTemplatePartialSpecializationDecl *PartialSpec\r
+ = dyn_cast<ClassTemplatePartialSpecializationDecl>(CXXRecord)) {\r
+ AlreadyStarted = true;\r
+ \r
+ switch (D->getTagKind()) {\r
+ case TTK_Interface:\r
+ case TTK_Struct: Out << "@SP"; break;\r
+ case TTK_Class: Out << "@CP"; break;\r
+ case TTK_Union: Out << "@UP"; break;\r
+ case TTK_Enum: llvm_unreachable("enum partial specialization");\r
+ } \r
+ VisitTemplateParameterList(PartialSpec->getTemplateParameters());\r
+ }\r
+ }\r
+ \r
+ if (!AlreadyStarted) {\r
+ switch (D->getTagKind()) {\r
+ case TTK_Interface:\r
+ case TTK_Struct: Out << "@S"; break;\r
+ case TTK_Class: Out << "@C"; break;\r
+ case TTK_Union: Out << "@U"; break;\r
+ case TTK_Enum: Out << "@E"; break;\r
+ }\r
+ }\r
+ \r
+ Out << '@';\r
+ Out.flush();\r
+ assert(Buf.size() > 0);\r
+ const unsigned off = Buf.size() - 1;\r
+\r
+ if (EmitDeclName(D)) {\r
+ if (const TypedefNameDecl *TD = D->getTypedefNameForAnonDecl()) {\r
+ Buf[off] = 'A';\r
+ Out << '@' << *TD;\r
+ }\r
+ else\r
+ Buf[off] = 'a';\r
+ }\r
+ \r
+ // For a class template specialization, mangle the template arguments.\r
+ if (ClassTemplateSpecializationDecl *Spec\r
+ = dyn_cast<ClassTemplateSpecializationDecl>(D)) {\r
+ const TemplateArgumentList &Args = Spec->getTemplateInstantiationArgs();\r
+ Out << '>';\r
+ for (unsigned I = 0, N = Args.size(); I != N; ++I) {\r
+ Out << '#';\r
+ VisitTemplateArgument(Args.get(I));\r
+ }\r
+ }\r
+}\r
+\r
+void USRGenerator::VisitTypedefDecl(TypedefDecl *D) {\r
+ if (ShouldGenerateLocation(D) && GenLoc(D))\r
+ return;\r
+ DeclContext *DC = D->getDeclContext();\r
+ if (NamedDecl *DCN = dyn_cast<NamedDecl>(DC))\r
+ Visit(DCN);\r
+ Out << "@T@";\r
+ Out << D->getName();\r
+}\r
+\r
+void USRGenerator::VisitTemplateTypeParmDecl(TemplateTypeParmDecl *D) {\r
+ GenLoc(D);\r
+ return;\r
+}\r
+\r
+bool USRGenerator::GenLoc(const Decl *D) {\r
+ if (generatedLoc)\r
+ return IgnoreResults;\r
+ generatedLoc = true;\r
+ \r
+ // Guard against null declarations in invalid code.\r
+ if (!D) {\r
+ IgnoreResults = true;\r
+ return true;\r
+ }\r
+\r
+ // Use the location of canonical decl.\r
+ D = D->getCanonicalDecl();\r
+\r
+ const SourceManager &SM = Context->getSourceManager();\r
+ SourceLocation L = D->getLocStart();\r
+ if (L.isInvalid()) {\r
+ IgnoreResults = true;\r
+ return true;\r
+ }\r
+ L = SM.getExpansionLoc(L);\r
+ const std::pair<FileID, unsigned> &Decomposed = SM.getDecomposedLoc(L);\r
+ const FileEntry *FE = SM.getFileEntryForID(Decomposed.first);\r
+ if (FE) {\r
+ Out << llvm::sys::path::filename(FE->getName());\r
+ }\r
+ else {\r
+ // This case really isn't interesting.\r
+ IgnoreResults = true;\r
+ return true;\r
+ }\r
+ // Use the offest into the FileID to represent the location. Using\r
+ // a line/column can cause us to look back at the original source file,\r
+ // which is expensive.\r
+ Out << '@' << Decomposed.second;\r
+ return IgnoreResults;\r
+}\r
+\r
+void USRGenerator::VisitType(QualType T) {\r
+ // This method mangles in USR information for types. It can possibly\r
+ // just reuse the naming-mangling logic used by codegen, although the\r
+ // requirements for USRs might not be the same.\r
+ ASTContext &Ctx = *Context;\r
+\r
+ do {\r
+ T = Ctx.getCanonicalType(T);\r
+ Qualifiers Q = T.getQualifiers();\r
+ unsigned qVal = 0;\r
+ if (Q.hasConst())\r
+ qVal |= 0x1;\r
+ if (Q.hasVolatile())\r
+ qVal |= 0x2;\r
+ if (Q.hasRestrict())\r
+ qVal |= 0x4;\r
+ if(qVal)\r
+ Out << ((char) ('0' + qVal));\r
+\r
+ // Mangle in ObjC GC qualifiers?\r
+\r
+ if (const PackExpansionType *Expansion = T->getAs<PackExpansionType>()) {\r
+ Out << 'P';\r
+ T = Expansion->getPattern();\r
+ }\r
+ \r
+ if (const BuiltinType *BT = T->getAs<BuiltinType>()) {\r
+ unsigned char c = '\0';\r
+ switch (BT->getKind()) {\r
+ case BuiltinType::Void:\r
+ c = 'v'; break;\r
+ case BuiltinType::Bool:\r
+ c = 'b'; break;\r
+ case BuiltinType::Char_U:\r
+ case BuiltinType::UChar:\r
+ c = 'c'; break;\r
+ case BuiltinType::Char16:\r
+ c = 'q'; break;\r
+ case BuiltinType::Char32:\r
+ c = 'w'; break;\r
+ case BuiltinType::UShort:\r
+ c = 's'; break;\r
+ case BuiltinType::UInt:\r
+ c = 'i'; break;\r
+ case BuiltinType::ULong:\r
+ c = 'l'; break;\r
+ case BuiltinType::ULongLong:\r
+ c = 'k'; break;\r
+ case BuiltinType::UInt128:\r
+ c = 'j'; break;\r
+ case BuiltinType::Char_S:\r
+ case BuiltinType::SChar:\r
+ c = 'C'; break;\r
+ case BuiltinType::WChar_S:\r
+ case BuiltinType::WChar_U:\r
+ c = 'W'; break;\r
+ case BuiltinType::Short:\r
+ c = 'S'; break;\r
+ case BuiltinType::Int:\r
+ c = 'I'; break;\r
+ case BuiltinType::Long:\r
+ c = 'L'; break;\r
+ case BuiltinType::LongLong:\r
+ c = 'K'; break;\r
+ case BuiltinType::Int128:\r
+ c = 'J'; break;\r
+ case BuiltinType::Half:\r
+ c = 'h'; break;\r
+ case BuiltinType::Float:\r
+ c = 'f'; break;\r
+ case BuiltinType::Double:\r
+ c = 'd'; break;\r
+ case BuiltinType::LongDouble:\r
+ c = 'D'; break;\r
+ case BuiltinType::NullPtr:\r
+ c = 'n'; break;\r
+#define BUILTIN_TYPE(Id, SingletonId)\r
+#define PLACEHOLDER_TYPE(Id, SingletonId) case BuiltinType::Id:\r
+#include "clang/AST/BuiltinTypes.def"\r
+ case BuiltinType::Dependent:\r
+ IgnoreResults = true;\r
+ return;\r
+ case BuiltinType::ObjCId:\r
+ c = 'o'; break;\r
+ case BuiltinType::ObjCClass:\r
+ c = 'O'; break;\r
+ case BuiltinType::ObjCSel:\r
+ c = 'e'; break;\r
+ }\r
+ Out << c;\r
+ return;\r
+ }\r
+\r
+ // If we have already seen this (non-built-in) type, use a substitution\r
+ // encoding.\r
+ llvm::DenseMap<const Type *, unsigned>::iterator Substitution\r
+ = TypeSubstitutions.find(T.getTypePtr());\r
+ if (Substitution != TypeSubstitutions.end()) {\r
+ Out << 'S' << Substitution->second << '_';\r
+ return;\r
+ } else {\r
+ // Record this as a substitution.\r
+ unsigned Number = TypeSubstitutions.size();\r
+ TypeSubstitutions[T.getTypePtr()] = Number;\r
+ }\r
+ \r
+ if (const PointerType *PT = T->getAs<PointerType>()) {\r
+ Out << '*';\r
+ T = PT->getPointeeType();\r
+ continue;\r
+ }\r
+ if (const ReferenceType *RT = T->getAs<ReferenceType>()) {\r
+ Out << '&';\r
+ T = RT->getPointeeType();\r
+ continue;\r
+ }\r
+ if (const FunctionProtoType *FT = T->getAs<FunctionProtoType>()) {\r
+ Out << 'F';\r
+ VisitType(FT->getResultType());\r
+ for (FunctionProtoType::arg_type_iterator\r
+ I = FT->arg_type_begin(), E = FT->arg_type_end(); I!=E; ++I) {\r
+ VisitType(*I);\r
+ }\r
+ if (FT->isVariadic())\r
+ Out << '.';\r
+ return;\r
+ }\r
+ if (const BlockPointerType *BT = T->getAs<BlockPointerType>()) {\r
+ Out << 'B';\r
+ T = BT->getPointeeType();\r
+ continue;\r
+ }\r
+ if (const ComplexType *CT = T->getAs<ComplexType>()) {\r
+ Out << '<';\r
+ T = CT->getElementType();\r
+ continue;\r
+ }\r
+ if (const TagType *TT = T->getAs<TagType>()) {\r
+ Out << '$';\r
+ VisitTagDecl(TT->getDecl());\r
+ return;\r
+ }\r
+ if (const TemplateTypeParmType *TTP = T->getAs<TemplateTypeParmType>()) {\r
+ Out << 't' << TTP->getDepth() << '.' << TTP->getIndex();\r
+ return;\r
+ }\r
+ if (const TemplateSpecializationType *Spec\r
+ = T->getAs<TemplateSpecializationType>()) {\r
+ Out << '>';\r
+ VisitTemplateName(Spec->getTemplateName());\r
+ Out << Spec->getNumArgs();\r
+ for (unsigned I = 0, N = Spec->getNumArgs(); I != N; ++I)\r
+ VisitTemplateArgument(Spec->getArg(I));\r
+ return;\r
+ }\r
+ \r
+ // Unhandled type.\r
+ Out << ' ';\r
+ break;\r
+ } while (true);\r
+}\r
+\r
+void USRGenerator::VisitTemplateParameterList(\r
+ const TemplateParameterList *Params) {\r
+ if (!Params)\r
+ return;\r
+ Out << '>' << Params->size();\r
+ for (TemplateParameterList::const_iterator P = Params->begin(),\r
+ PEnd = Params->end();\r
+ P != PEnd; ++P) {\r
+ Out << '#';\r
+ if (isa<TemplateTypeParmDecl>(*P)) {\r
+ if (cast<TemplateTypeParmDecl>(*P)->isParameterPack())\r
+ Out<< 'p';\r
+ Out << 'T';\r
+ continue;\r
+ }\r
+ \r
+ if (NonTypeTemplateParmDecl *NTTP = dyn_cast<NonTypeTemplateParmDecl>(*P)) {\r
+ if (NTTP->isParameterPack())\r
+ Out << 'p';\r
+ Out << 'N';\r
+ VisitType(NTTP->getType());\r
+ continue;\r
+ }\r
+ \r
+ TemplateTemplateParmDecl *TTP = cast<TemplateTemplateParmDecl>(*P);\r
+ if (TTP->isParameterPack())\r
+ Out << 'p';\r
+ Out << 't';\r
+ VisitTemplateParameterList(TTP->getTemplateParameters());\r
+ }\r
+}\r
+\r
+void USRGenerator::VisitTemplateName(TemplateName Name) {\r
+ if (TemplateDecl *Template = Name.getAsTemplateDecl()) {\r
+ if (TemplateTemplateParmDecl *TTP\r
+ = dyn_cast<TemplateTemplateParmDecl>(Template)) {\r
+ Out << 't' << TTP->getDepth() << '.' << TTP->getIndex();\r
+ return;\r
+ }\r
+ \r
+ Visit(Template);\r
+ return;\r
+ }\r
+ \r
+ // FIXME: Visit dependent template names.\r
+}\r
+\r
+void USRGenerator::VisitTemplateArgument(const TemplateArgument &Arg) {\r
+ switch (Arg.getKind()) {\r
+ case TemplateArgument::Null:\r
+ break;\r
+\r
+ case TemplateArgument::Declaration:\r
+ if (Decl *D = Arg.getAsDecl())\r
+ Visit(D);\r
+ break;\r
+ \r
+ case TemplateArgument::TemplateExpansion:\r
+ Out << 'P'; // pack expansion of...\r
+ // Fall through\r
+ case TemplateArgument::Template:\r
+ VisitTemplateName(Arg.getAsTemplateOrTemplatePattern());\r
+ break;\r
+ \r
+ case TemplateArgument::Expression:\r
+ // FIXME: Visit expressions.\r
+ break;\r
+ \r
+ case TemplateArgument::Pack:\r
+ Out << 'p' << Arg.pack_size();\r
+ for (TemplateArgument::pack_iterator P = Arg.pack_begin(), PEnd = Arg.pack_end();\r
+ P != PEnd; ++P)\r
+ VisitTemplateArgument(*P);\r
+ break;\r
+ \r
+ case TemplateArgument::Type:\r
+ VisitType(Arg.getAsType());\r
+ break;\r
+ \r
+ case TemplateArgument::Integral:\r
+ Out << 'V';\r
+ VisitType(Arg.getIntegralType());\r
+ Out << Arg.getAsIntegral();\r
+ break;\r
+ }\r
+}\r
+\r
+//===----------------------------------------------------------------------===//\r
+// General purpose USR generation methods.\r
+//===----------------------------------------------------------------------===//\r
+\r
+void USRGenerator::GenObjCClass(StringRef cls) {\r
+ Out << "objc(cs)" << cls;\r
+}\r
+\r
+void USRGenerator::GenObjCCategory(StringRef cls, StringRef cat) {\r
+ Out << "objc(cy)" << cls << '@' << cat;\r
+}\r
+\r
+void USRGenerator::GenObjCIvar(StringRef ivar) {\r
+ Out << '@' << ivar;\r
+}\r
+\r
+void USRGenerator::GenObjCMethod(StringRef meth, bool isInstanceMethod) {\r
+ Out << (isInstanceMethod ? "(im)" : "(cm)") << meth;\r
+}\r
+\r
+void USRGenerator::GenObjCProperty(StringRef prop) {\r
+ Out << "(py)" << prop;\r
+}\r
+\r
+void USRGenerator::GenObjCProtocol(StringRef prot) {\r
+ Out << "objc(pl)" << prot;\r
+}\r
+\r
+//===----------------------------------------------------------------------===//\r
+// API hooks.\r
+//===----------------------------------------------------------------------===//\r
+\r
+static inline StringRef extractUSRSuffix(StringRef s) {\r
+ return s.startswith("c:") ? s.substr(2) : "";\r
+}\r
+\r
+bool cxcursor::getDeclCursorUSR(const Decl *D, SmallVectorImpl<char> &Buf) {\r
+ // Don't generate USRs for things with invalid locations.\r
+ if (!D || D->getLocStart().isInvalid())\r
+ return true;\r
+\r
+ // Check if the cursor has 'NoLinkage'.\r
+ if (const NamedDecl *ND = dyn_cast<NamedDecl>(D))\r
+ switch (ND->getLinkage()) {\r
+ case ExternalLinkage:\r
+ // Generate USRs for all entities with external linkage.\r
+ break;\r
+ case NoLinkage:\r
+ case UniqueExternalLinkage:\r
+ // We allow enums, typedefs, and structs that have no linkage to\r
+ // have USRs that are anchored to the file they were defined in\r
+ // (e.g., the header). This is a little gross, but in principal\r
+ // enums/anonymous structs/etc. defined in a common header file\r
+ // are referred to across multiple translation units.\r
+ if (isa<TagDecl>(ND) || isa<TypedefDecl>(ND) ||\r
+ isa<EnumConstantDecl>(ND) || isa<FieldDecl>(ND) ||\r
+ isa<VarDecl>(ND) || isa<NamespaceDecl>(ND))\r
+ break;\r
+ // Fall-through.\r
+ case InternalLinkage:\r
+ if (isa<FunctionDecl>(ND))\r
+ break;\r
+ }\r
+\r
+ {\r
+ USRGenerator UG(&D->getASTContext(), &Buf);\r
+ UG->Visit(const_cast<Decl*>(D));\r
+\r
+ if (UG->ignoreResults())\r
+ return true;\r
+ }\r
+\r
+ return false;\r
+}\r
+\r
+extern "C" {\r
+\r
+CXString clang_getCursorUSR(CXCursor C) {\r
+ const CXCursorKind &K = clang_getCursorKind(C);\r
+\r
+ if (clang_isDeclaration(K)) {\r
+ Decl *D = cxcursor::getCursorDecl(C);\r
+ if (!D)\r
+ return createCXString("");\r
+\r
+ CXTranslationUnit TU = cxcursor::getCursorTU(C);\r
+ if (!TU)\r
+ return createCXString("");\r
+\r
+ CXStringBuf *buf = cxstring::getCXStringBuf(TU);\r
+ if (!buf)\r
+ return createCXString("");\r
+\r
+ bool Ignore = cxcursor::getDeclCursorUSR(D, buf->Data);\r
+ if (Ignore) {\r
+ disposeCXStringBuf(buf);\r
+ return createCXString("");\r
+ }\r
+\r
+ // Return the C-string, but don't make a copy since it is already in\r
+ // the string buffer.\r
+ buf->Data.push_back('\0');\r
+ return createCXString(buf);\r
+ }\r
+\r
+ if (K == CXCursor_MacroDefinition) {\r
+ CXTranslationUnit TU = cxcursor::getCursorTU(C);\r
+ if (!TU)\r
+ return createCXString("");\r
+\r
+ CXStringBuf *buf = cxstring::getCXStringBuf(TU);\r
+ if (!buf)\r
+ return createCXString("");\r
+\r
+ {\r
+ USRGenerator UG(&cxcursor::getCursorASTUnit(C)->getASTContext(),\r
+ &buf->Data);\r
+ UG << "macro@"\r
+ << cxcursor::getCursorMacroDefinition(C)->getName()->getNameStart();\r
+ }\r
+ buf->Data.push_back('\0');\r
+ return createCXString(buf);\r
+ }\r
+\r
+ return createCXString("");\r
+}\r
+\r
+CXString clang_constructUSR_ObjCIvar(const char *name, CXString classUSR) {\r
+ USRGenerator UG;\r
+ UG << extractUSRSuffix(clang_getCString(classUSR));\r
+ UG->GenObjCIvar(name);\r
+ return createCXString(UG.str(), true);\r
+}\r
+\r
+CXString clang_constructUSR_ObjCMethod(const char *name,\r
+ unsigned isInstanceMethod,\r
+ CXString classUSR) {\r
+ USRGenerator UG;\r
+ UG << extractUSRSuffix(clang_getCString(classUSR));\r
+ UG->GenObjCMethod(name, isInstanceMethod);\r
+ return createCXString(UG.str(), true);\r
+}\r
+\r
+CXString clang_constructUSR_ObjCClass(const char *name) {\r
+ USRGenerator UG;\r
+ UG->GenObjCClass(name);\r
+ return createCXString(UG.str(), true);\r
+}\r
+\r
+CXString clang_constructUSR_ObjCProtocol(const char *name) {\r
+ USRGenerator UG;\r
+ UG->GenObjCProtocol(name);\r
+ return createCXString(UG.str(), true);\r
+}\r
+\r
+CXString clang_constructUSR_ObjCCategory(const char *class_name,\r
+ const char *category_name) {\r
+ USRGenerator UG;\r
+ UG->GenObjCCategory(class_name, category_name);\r
+ return createCXString(UG.str(), true);\r
+}\r
+\r
+CXString clang_constructUSR_ObjCProperty(const char *property,\r
+ CXString classUSR) {\r
+ USRGenerator UG;\r
+ UG << extractUSRSuffix(clang_getCString(classUSR));\r
+ UG->GenObjCProperty(property);\r
+ return createCXString(UG.str(), true);\r
+}\r
+\r
+} // end extern "C"\r
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