[Lldb-commits] [lldb] 8612e92 - [lldb][NFC] Remove GetASTContext call in ClangDeclVendor

Shafik Yaghmour via lldb-commits lldb-commits at lists.llvm.org
Thu Jan 2 16:20:33 PST 2020


Apologies, m_opaque_decl member of CompilerDecl and operator < in CompilerDecl.h 

> On Jan 2, 2020, at 3:54 PM, Raphael “Teemperor” Isemann <teemperor at gmail.com> wrote:
> 
> Not sure if I can follow. What variable should just be a Decl* and what operator<?
> 
> (Also yeah that reinterpret_cast could also be a static_cast)
> 
>> On Jan 3, 2020, at 12:38 AM, Shafik Yaghmour <syaghmour at apple.com> wrote:
>> 
>> I am not crazy about the reinterpret_cast although if we look inside CompilerDecl impl we can see that basically it is always assuming it is a Decl* and just C-style casts it as such. So why not just make it a Decl*
>> 
>> Also operator<(…) is super sketchy doing a < on void* 
>> 
>>> On Dec 28, 2019, at 6:52 AM, Raphael Isemann via lldb-commits <lldb-commits at lists.llvm.org> wrote:
>>> 
>>> 
>>> Author: Raphael Isemann
>>> Date: 2019-12-28T15:20:19+01:00
>>> New Revision: 8612e92ed590e615f9f56e4fb86a1fdaf3a39e15
>>> 
>>> URL: https://github.com/llvm/llvm-project/commit/8612e92ed590e615f9f56e4fb86a1fdaf3a39e15
>>> DIFF: https://github.com/llvm/llvm-project/commit/8612e92ed590e615f9f56e4fb86a1fdaf3a39e15.diff
>>> 
>>> LOG: [lldb][NFC] Remove GetASTContext call in ClangDeclVendor
>>> 
>>> Instead of returning NamedDecls and then calling GetASTContext
>>> to find back the ClangASTContext we used can just implement the
>>> FindDecl variant that returns CompilerDecls (and implement the
>>> other function by throwing away the ClangASTContext part of the
>>> compiler decl).
>>> 
>>> Added: 
>>> 
>>> 
>>> Modified: 
>>>  lldb/source/Plugins/ExpressionParser/Clang/ClangDeclVendor.cpp
>>>  lldb/source/Plugins/ExpressionParser/Clang/ClangDeclVendor.h
>>>  lldb/source/Plugins/ExpressionParser/Clang/ClangModulesDeclVendor.cpp
>>>  lldb/source/Plugins/LanguageRuntime/ObjC/AppleObjCRuntime/AppleObjCDeclVendor.cpp
>>>  lldb/source/Plugins/LanguageRuntime/ObjC/AppleObjCRuntime/AppleObjCDeclVendor.h
>>> 
>>> Removed: 
>>> 
>>> 
>>> 
>>> ################################################################################
>>> diff  --git a/lldb/source/Plugins/ExpressionParser/Clang/ClangDeclVendor.cpp b/lldb/source/Plugins/ExpressionParser/Clang/ClangDeclVendor.cpp
>>> index c59722b7b4f8..0c5796650d45 100644
>>> --- a/lldb/source/Plugins/ExpressionParser/Clang/ClangDeclVendor.cpp
>>> +++ b/lldb/source/Plugins/ExpressionParser/Clang/ClangDeclVendor.cpp
>>> @@ -15,16 +15,17 @@ using namespace lldb_private;
>>> 
>>> uint32_t ClangDeclVendor::FindDecls(ConstString name, bool append,
>>>                                   uint32_t max_matches,
>>> -                                    std::vector<CompilerDecl> &decls) {
>>> +                                    std::vector<clang::NamedDecl *> &decls) {
>>> if (!append)
>>>   decls.clear();
>>> 
>>> -  std::vector<clang::NamedDecl *> named_decls;
>>> -  uint32_t ret = FindDecls(name, /*append*/ false, max_matches, named_decls);
>>> -  for (auto *named_decl : named_decls) {
>>> -    decls.push_back(CompilerDecl(
>>> -        ClangASTContext::GetASTContext(&named_decl->getASTContext()),
>>> -        named_decl));
>>> +  std::vector<CompilerDecl> compiler_decls;
>>> +  uint32_t ret = FindDecls(name, /*append*/ false, max_matches, compiler_decls);
>>> +  for (CompilerDecl compiler_decl : compiler_decls) {
>>> +    clang::Decl *d =
>>> +        reinterpret_cast<clang::Decl *>(compiler_decl.GetOpaqueDecl());
>>> +    clang::NamedDecl *nd = llvm::cast<clang::NamedDecl>(d);
>>> +    decls.push_back(nd);
>>> }
>>> return ret;
>>> }
>>> 
>>> diff  --git a/lldb/source/Plugins/ExpressionParser/Clang/ClangDeclVendor.h b/lldb/source/Plugins/ExpressionParser/Clang/ClangDeclVendor.h
>>> index 85a10400a201..0c888de08841 100644
>>> --- a/lldb/source/Plugins/ExpressionParser/Clang/ClangDeclVendor.h
>>> +++ b/lldb/source/Plugins/ExpressionParser/Clang/ClangDeclVendor.h
>>> @@ -21,12 +21,10 @@ class ClangDeclVendor : public DeclVendor {
>>> 
>>> virtual ~ClangDeclVendor() {}
>>> 
>>> -  uint32_t FindDecls(ConstString name, bool append, uint32_t max_matches,
>>> -                     std::vector<CompilerDecl> &decls) override;
>>> +  using DeclVendor::FindDecls;
>>> 
>>> -  virtual uint32_t FindDecls(ConstString name, bool append,
>>> -                             uint32_t max_matches,
>>> -                             std::vector<clang::NamedDecl *> &decls) = 0;
>>> +  uint32_t FindDecls(ConstString name, bool append, uint32_t max_matches,
>>> +                     std::vector<clang::NamedDecl *> &decls);
>>> 
>>> static bool classof(const DeclVendor *vendor) {
>>>   return vendor->GetKind() >= eClangDeclVendor &&
>>> 
>>> diff  --git a/lldb/source/Plugins/ExpressionParser/Clang/ClangModulesDeclVendor.cpp b/lldb/source/Plugins/ExpressionParser/Clang/ClangModulesDeclVendor.cpp
>>> index ff0905dda4ef..0696c669f2e2 100644
>>> --- a/lldb/source/Plugins/ExpressionParser/Clang/ClangModulesDeclVendor.cpp
>>> +++ b/lldb/source/Plugins/ExpressionParser/Clang/ClangModulesDeclVendor.cpp
>>> @@ -80,7 +80,7 @@ class ClangModulesDeclVendorImpl : public ClangModulesDeclVendor {
>>>                               Stream &error_stream) override;
>>> 
>>> uint32_t FindDecls(ConstString name, bool append, uint32_t max_matches,
>>> -                     std::vector<clang::NamedDecl *> &decls) override;
>>> +                     std::vector<CompilerDecl> &decls) override;
>>> 
>>> void ForEachMacro(const ModuleVector &modules,
>>>                   std::function<bool(const std::string &)> handler) override;
>>> @@ -356,7 +356,7 @@ bool ClangModulesDeclVendorImpl::AddModulesForCompileUnit(
>>> uint32_t
>>> ClangModulesDeclVendorImpl::FindDecls(ConstString name, bool append,
>>>                                     uint32_t max_matches,
>>> -                                      std::vector<clang::NamedDecl *> &decls) {
>>> +                                      std::vector<CompilerDecl> &decls) {
>>> if (!m_enabled) {
>>>   return 0;
>>> }
>>> @@ -382,7 +382,7 @@ ClangModulesDeclVendorImpl::FindDecls(ConstString name, bool append,
>>>   if (num_matches >= max_matches)
>>>     return num_matches;
>>> 
>>> -    decls.push_back(named_decl);
>>> +    decls.push_back(CompilerDecl(m_ast_context.get(), named_decl));
>>>   ++num_matches;
>>> }
>>> 
>>> 
>>> diff  --git a/lldb/source/Plugins/LanguageRuntime/ObjC/AppleObjCRuntime/AppleObjCDeclVendor.cpp b/lldb/source/Plugins/LanguageRuntime/ObjC/AppleObjCRuntime/AppleObjCDeclVendor.cpp
>>> index 54f8397e1dad..29930c303b07 100644
>>> --- a/lldb/source/Plugins/LanguageRuntime/ObjC/AppleObjCRuntime/AppleObjCDeclVendor.cpp
>>> +++ b/lldb/source/Plugins/LanguageRuntime/ObjC/AppleObjCRuntime/AppleObjCDeclVendor.cpp
>>> @@ -537,10 +537,9 @@ bool AppleObjCDeclVendor::FinishDecl(clang::ObjCInterfaceDecl *interface_decl) {
>>> return true;
>>> }
>>> 
>>> -uint32_t
>>> -AppleObjCDeclVendor::FindDecls(ConstString name, bool append,
>>> -                               uint32_t max_matches,
>>> -                               std::vector<clang::NamedDecl *> &decls) {
>>> +uint32_t AppleObjCDeclVendor::FindDecls(ConstString name, bool append,
>>> +                                        uint32_t max_matches,
>>> +                                        std::vector<CompilerDecl> &decls) {
>>> static unsigned int invocation_id = 0;
>>> unsigned int current_id = invocation_id++;
>>> 
>>> @@ -587,7 +586,7 @@ AppleObjCDeclVendor::FindDecls(ConstString name, bool append,
>>>                  current_id, result_iface_type.getAsString(), isa_value);
>>>       }
>>> 
>>> -        decls.push_back(result_iface_decl);
>>> +        decls.push_back(CompilerDecl(&m_ast_ctx, result_iface_decl));
>>>       ret++;
>>>       break;
>>>     } else {
>>> @@ -630,7 +629,7 @@ AppleObjCDeclVendor::FindDecls(ConstString name, bool append,
>>>              new_iface_type.getAsString(), (uint64_t)isa);
>>>   }
>>> 
>>> -    decls.push_back(iface_decl);
>>> +    decls.push_back(CompilerDecl(&m_ast_ctx, iface_decl));
>>>   ret++;
>>>   break;
>>> } while (false);
>>> 
>>> diff  --git a/lldb/source/Plugins/LanguageRuntime/ObjC/AppleObjCRuntime/AppleObjCDeclVendor.h b/lldb/source/Plugins/LanguageRuntime/ObjC/AppleObjCRuntime/AppleObjCDeclVendor.h
>>> index 311113a27735..f49ca3540c2c 100644
>>> --- a/lldb/source/Plugins/LanguageRuntime/ObjC/AppleObjCRuntime/AppleObjCDeclVendor.h
>>> +++ b/lldb/source/Plugins/LanguageRuntime/ObjC/AppleObjCRuntime/AppleObjCDeclVendor.h
>>> @@ -28,7 +28,7 @@ class AppleObjCDeclVendor : public ClangDeclVendor {
>>> }
>>> 
>>> uint32_t FindDecls(ConstString name, bool append, uint32_t max_matches,
>>> -                     std::vector<clang::NamedDecl *> &decls) override;
>>> +                     std::vector<CompilerDecl> &decls) override;
>>> 
>>> friend class AppleObjCExternalASTSource;
>>> 
>>> 
>>> 
>>> 
>>> _______________________________________________
>>> lldb-commits mailing list
>>> lldb-commits at lists.llvm.org
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>> 
> 



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