Enable -Wmismatched-tags

src/Makefile

@@ -203,7 +203,7 @@ CLANG_DEPS := $(CLANGPP_EXE) $(abspath $(dir $(CLANGPP_EXE))/../../built_release
 
 # settings to make clang and ccache play nicely:
 CLANG_CCACHE_FLAGS := -Qunused-arguments
-CLANG_EXTRA_FLAGS := -Wno-mismatched-tags -enable-tbaa -ferror-limit=$(ERROR_LIMIT) $(CLANG_CCACHE_FLAGS)
+CLANG_EXTRA_FLAGS := -enable-tbaa -ferror-limit=$(ERROR_LIMIT) $(CLANG_CCACHE_FLAGS)
 ifeq ($(COLOR),1)
 	CLANG_EXTRA_FLAGS += -fcolor-diagnostics
 else

src/asm_writing/icinfo.h

@@ -128,7 +128,7 @@ public:
 };
 
 class ICSetupInfo;
-class CompiledFunction;
+struct CompiledFunction;
 void registerCompiledPatchpoint(CompiledFunction* cf, uint8_t* start_addr, uint8_t* slowpath_start_addr,
                                 uint8_t* continue_addr, uint8_t* slowpath_rtn_addr, const ICSetupInfo*,
                                 StackInfo stack_info, std::unordered_set<int> live_outs);

src/asm_writing/rewriter.h

@@ -26,7 +26,7 @@ namespace pyston {
 class TypeRecorder;
 
 class ICInfo;
-class ICSlotInfo;
+struct ICSlotInfo;
 class ICSlotRewrite;
 class ICInvalidator;
 

src/codegen/entry.h

@@ -19,7 +19,6 @@ namespace pyston {
 
 class AST_Module;
 class BoxedModule;
-class CompiledFunction;
 
 void initCodegen();
 void teardownCodegen();

src/codegen/irgen/hooks.h

@@ -19,7 +19,7 @@
 
 namespace pyston {
 
-class CompiledFunction;
+struct CompiledFunction;
 class CLFunction;
 class OSRExit;
 

src/codegen/irgen/irgenerator.h

@@ -34,7 +34,7 @@ namespace pyston {
 
 class CFGBlock;
 class GCBuilder;
-class PatchpointInfo;
+struct PatchpointInfo;
 class ScopeInfo;
 class TypeAnalysis;
 

src/codegen/llvm_interpreter.h

@@ -27,7 +27,7 @@ class GCVisitor;
 
 class Box;
 class BoxedDict;
-class LineInfo;
+struct LineInfo;
 
 Box* interpretFunction(llvm::Function* f, int nargs, Box* closure, Box* generator, Box* arg1, Box* arg2, Box* arg3,
                        Box** args);

src/codegen/osrentry.h

@@ -24,7 +24,7 @@ class Function;
 
 namespace pyston {
 
-class StackMap;
+struct StackMap;
 
 class OSREntryDescriptor {
 private:

src/codegen/patchpoints.h

@@ -25,7 +25,7 @@
 
 namespace pyston {
 
-class CompiledFunction;
+struct CompiledFunction;
 class CompilerType;
 struct StackMap;
 class TypeRecorder;

src/core/types.h

@@ -121,7 +121,7 @@ class BoxedModule;
 class BoxedFunction;
 
 class ICGetattr;
-class ICSlotInfo;
+struct ICSlotInfo;
 
 class CFG;
 class AST;
@@ -253,7 +253,7 @@ public:
 };
 
 typedef std::vector<CompiledFunction*> FunctionList;
-class CallRewriteArgs;
+struct CallRewriteArgs;
 class CLFunction {
 public:
     int num_args;
@@ -386,9 +386,9 @@ public:
 class HiddenClass;
 extern HiddenClass* root_hcls;
 
-class SetattrRewriteArgs;
-class GetattrRewriteArgs;
-class DelattrRewriteArgs;
+struct SetattrRewriteArgs;
+struct GetattrRewriteArgs;
+struct DelattrRewriteArgs;
 
 struct HCAttrs {
 public:

src/gc/heap.h

@@ -103,7 +103,7 @@ constexpr const size_t sizes[] = {
 };
 #define NUM_BUCKETS (sizeof(sizes) / sizeof(sizes[0]))
 
-class LargeObj;
+struct LargeObj;
 class Heap {
 private:
     Block* heads[NUM_BUCKETS];
@@ -127,7 +127,7 @@ private:
         }
         ~ThreadBlockCache();
     };
-    friend class ThreadBlockCache;
+    friend struct ThreadBlockCache;
     // TODO only use thread caches if we're in GRWL mode?
     threading::PerThreadSet<ThreadBlockCache, Heap*> thread_caches;
 

src/runtime/objmodel.h

@@ -81,13 +81,13 @@ extern "C" bool isSubclass(BoxedClass* child, BoxedClass* parent);
 extern "C" BoxedClosure* createClosure(BoxedClosure* parent_closure);
 extern "C" Box* getiter(Box* o);
 
-class SetattrRewriteArgs;
+struct SetattrRewriteArgs;
 void setattrInternal(Box* obj, const std::string& attr, Box* val, SetattrRewriteArgs* rewrite_args);
 
-class BinopRewriteArgs;
+struct BinopRewriteArgs;
 extern "C" Box* binopInternal(Box* lhs, Box* rhs, int op_type, bool inplace, BinopRewriteArgs* rewrite_args);
 
-class CallRewriteArgs;
+struct CallRewriteArgs;
 Box* typeCallInternal(BoxedFunction* f, CallRewriteArgs* rewrite_args, ArgPassSpec argspec, Box* arg1, Box* arg2,
                       Box* arg3, Box** args, const std::vector<const std::string*>* keyword_names);