[Target] Hoist LanguageRuntime::GetDeclVendor

Summary:
It's possible that each LanguageRuntime could have its own DeclVendor,
so let's hoist that out of ObjCLanguageRuntime into LanguageRuntime.

Additionally, this gives the opportunity to remove SBTarget's dependency
on ObjCLanguageRuntime.

Reviewers: JDevlieghere, labath, compnerd, davide

Subscribers: lldb-commits

Differential Revision: https://reviews.llvm.org/D63622

llvm-svn: 364229

3 files changed, 23 insertions, 38 deletions

diff --git a/lldb/include/lldb/Target/LanguageRuntime.h b/lldb/include/lldb/Target/LanguageRuntime.h
index e3800616c48..54be5a75e98 100644
--- a/lldb/include/lldb/Target/LanguageRuntime.h
+++ b/lldb/include/lldb/Target/LanguageRuntime.h
@@ -16,6 +16,7 @@
 #include "lldb/Core/Value.h"
 #include "lldb/Core/ValueObject.h"
 #include "lldb/Expression/LLVMUserExpression.h"
+#include "lldb/Symbol/DeclVendor.h"
 #include "lldb/Target/ExecutionContextScope.h"
 #include "lldb/lldb-private.h"
 #include "lldb/lldb-public.h"
@@ -132,6 +133,8 @@ public:
 
   Target &GetTargetRef() { return m_process->GetTarget(); }
 
+  virtual DeclVendor *GetDeclVendor() { return nullptr; }
+
   virtual lldb::BreakpointResolverSP
   CreateExceptionResolver(Breakpoint *bkpt, bool catch_bp, bool throw_bp) = 0;
 
diff --git a/lldb/include/lldb/Target/ObjCLanguageRuntime.h b/lldb/include/lldb/Target/ObjCLanguageRuntime.h
index 4875650d90c..79737c925b7 100644
--- a/lldb/include/lldb/Target/ObjCLanguageRuntime.h
+++ b/lldb/include/lldb/Target/ObjCLanguageRuntime.h
@@ -20,7 +20,6 @@
 #include "lldb/Core/PluginInterface.h"
 #include "lldb/Core/ThreadSafeDenseMap.h"
 #include "lldb/Symbol/CompilerType.h"
-#include "lldb/Symbol/DeclVendor.h"
 #include "lldb/Symbol/Type.h"
 #include "lldb/Target/LanguageRuntime.h"
 #include "lldb/lldb-private.h"
@@ -276,8 +275,6 @@ public:
 
   virtual ObjCISA GetParentClass(ObjCISA isa);
 
-  virtual DeclVendor *GetDeclVendor() { return nullptr; }
-
   // Finds the byte offset of the child_type ivar in parent_type.  If it can't
   // find the offset, returns LLDB_INVALID_IVAR_OFFSET.
 
diff --git a/lldb/source/API/SBTarget.cpp b/lldb/source/API/SBTarget.cpp
index 0a408e7037b..b1ad0d8f58b 100644
--- a/lldb/source/API/SBTarget.cpp
+++ b/lldb/source/API/SBTarget.cpp
@@ -53,7 +53,6 @@
 #include "lldb/Target/ABI.h"
 #include "lldb/Target/Language.h"
 #include "lldb/Target/LanguageRuntime.h"
-#include "lldb/Target/ObjCLanguageRuntime.h"
 #include "lldb/Target/Process.h"
 #include "lldb/Target/StackFrame.h"
 #include "lldb/Target/Target.h"
@@ -1847,25 +1846,18 @@ lldb::SBType SBTarget::FindFirstType(const char *typename_cstr) {
       }
     }
 
-    // Didn't find the type in the symbols; try the Objective-C runtime if one
-    // is installed
-
-    ProcessSP process_sp(target_sp->GetProcessSP());
-
-    if (process_sp) {
-      ObjCLanguageRuntime *objc_language_runtime =
-          ObjCLanguageRuntime::Get(*process_sp);
-
-      if (objc_language_runtime) {
-        DeclVendor *objc_decl_vendor = objc_language_runtime->GetDeclVendor();
-
-        if (objc_decl_vendor) {
+    // Didn't find the type in the symbols; Try the loaded language runtimes
+    // FIXME: This depends on clang, but should be able to support any
+    // TypeSystem/compiler.
+    if (auto process_sp = target_sp->GetProcessSP()) {
+      for (auto *runtime : process_sp->GetLanguageRuntimes()) {
+        if (auto vendor = runtime->GetDeclVendor()) {
           std::vector<clang::NamedDecl *> decls;
-
-          if (objc_decl_vendor->FindDecls(const_typename, true, 1, decls) > 0) {
-            if (CompilerType type = ClangASTContext::GetTypeForDecl(decls[0])) {
+          if (vendor->FindDecls(const_typename, /*append*/ true,
+                                /*max_matches*/ 1, decls) > 0) {
+            if (CompilerType type =
+                    ClangASTContext::GetTypeForDecl(decls.front()))
               return LLDB_RECORD_RESULT(SBType(type));
-            }
           }
         }
       }
@@ -1918,25 +1910,18 @@ lldb::SBTypeList SBTarget::FindTypes(const char *typename_cstr) {
       }
     }
 
-    // Try the Objective-C runtime if one is installed
-
-    ProcessSP process_sp(target_sp->GetProcessSP());
-
-    if (process_sp) {
-      ObjCLanguageRuntime *objc_language_runtime =
-          ObjCLanguageRuntime::Get(*process_sp);
-
-      if (objc_language_runtime) {
-        DeclVendor *objc_decl_vendor = objc_language_runtime->GetDeclVendor();
-
-        if (objc_decl_vendor) {
+    // Try the loaded language runtimes
+    // FIXME: This depends on clang, but should be able to support any
+    // TypeSystem/compiler.
+    if (auto process_sp = target_sp->GetProcessSP()) {
+      for (auto *runtime : process_sp->GetLanguageRuntimes()) {
+        if (auto *vendor = runtime->GetDeclVendor()) {
           std::vector<clang::NamedDecl *> decls;
-
-          if (objc_decl_vendor->FindDecls(const_typename, true, 1, decls) > 0) {
-            for (clang::NamedDecl *decl : decls) {
-              if (CompilerType type = ClangASTContext::GetTypeForDecl(decl)) {
+          if (vendor->FindDecls(const_typename, /*append*/ true,
+                                /*max_matches*/ 1, decls) > 0) {
+            for (auto *decl : decls) {
+              if (CompilerType type = ClangASTContext::GetTypeForDecl(decl))
                 sb_type_list.Append(SBType(type));
-              }
             }
           }
         }