Changeset 5070fe4 for src/SymTab

Timestamp:

Aug 5, 2016, 10:55:01 AM (8 years ago)

Author:

Aaron Moss <a3moss@…>

Branches:

ADT, aaron-thesis, arm-eh, ast-experimental, cleanup-dtors, ctor, deferred_resn, demangler, enum, forall-pointer-decay, jacob/cs343-translation, jenkins-sandbox, master, memory, new-ast, new-ast-unique-expr, new-env, no_list, persistent-indexer, pthread-emulation, qualifiedEnum, resolv-new, with_gc

Children:

c331406

Parents:

ea5daeb

Message:

Tweak autogen to treat static-layout generic types like normal structs

File:

• src/SymTab/Autogen.cc (modified) (12 diffs)

src/SymTab/Autogen.cc

@@ -203 +203 @@
         }
 
-        void makeStructMemberOp( ObjectDecl * dstParam, Expression * src, DeclarationWithType * field, FunctionDecl * func, TypeSubstitution & genericSubs, bool isGeneric, bool forward = true ) {
+        void makeStructMemberOp( ObjectDecl * dstParam, Expression * src, DeclarationWithType * field, FunctionDecl * func, TypeSubstitution & genericSubs, bool isGeneric, bool isDynamicLayout, bool forward = true ) {
                 if ( isGeneric ) {
                         // rewrite member type in terms of the type variables on this operator
@@ -226 +226 @@
 
                         makeArrayFunction( src, dstselect, array, func->get_name(), back_inserter( func->get_statements()->get_kids() ), forward );
-                        if ( isGeneric && returnVal ) {
+                        if ( isDynamicLayout && returnVal ) {
                                 UntypedExpr *derefRet = new UntypedExpr( new NameExpr( "*?" ) );
                                 derefRet->get_args().push_back( new VariableExpr( returnVal ) );
@@ -235 +235 @@
                 } else {
                         makeScalarFunction( src, dstParam, field, func->get_name(), back_inserter( func->get_statements()->get_kids() ) );
-                        if ( isGeneric && returnVal ) makeScalarFunction( src, returnVal, field, func->get_name(), back_inserter( func->get_statements()->get_kids() ) );
+                        if ( isDynamicLayout && returnVal ) makeScalarFunction( src, returnVal, field, func->get_name(), back_inserter( func->get_statements()->get_kids() ) );
                 } // if
         }
 
         template<typename Iterator>
-        void makeStructFunctionBody( Iterator member, Iterator end, FunctionDecl * func, TypeSubstitution & genericSubs, bool isGeneric, bool forward = true ) {
+        void makeStructFunctionBody( Iterator member, Iterator end, FunctionDecl * func, TypeSubstitution & genericSubs, bool isGeneric, bool isDynamicLayout, bool forward = true ) {
                 for ( ; member != end; ++member ) {
                         if ( DeclarationWithType *field = dynamic_cast< DeclarationWithType * >( *member ) ) { // otherwise some form of type declaration, e.g. Aggregate
@@ -276 +276 @@
 
                                 Expression *srcselect = srcParam ? new MemberExpr( field, new VariableExpr( srcParam ) ) : NULL;
-                                makeStructMemberOp( dstParam, srcselect, field, func, genericSubs, isGeneric, forward );
+                                makeStructMemberOp( dstParam, srcselect, field, func, genericSubs, isGeneric, isDynamicLayout, forward );
                         } // if
                 } // for
@@ -284 +284 @@
         /// void ?{}(A *, int) and void?{}(A *, int, int) for a struct A which has two int fields.
         template<typename Iterator>
-        void makeStructFieldCtorBody( Iterator member, Iterator end, FunctionDecl * func, TypeSubstitution & genericSubs, bool isGeneric ) {
+        void makeStructFieldCtorBody( Iterator member, Iterator end, FunctionDecl * func, TypeSubstitution & genericSubs, bool isGeneric, bool isDynamicLayout ) {
                 FunctionType * ftype = func->get_functionType();
                 std::list<DeclarationWithType*> & params = ftype->get_parameters();
@@ -310 +310 @@
                                         // matching parameter, initialize field with copy ctor
                                         Expression *srcselect = new VariableExpr(*parameter);
-                                        makeStructMemberOp( dstParam, srcselect, field, func, genericSubs, isGeneric );
+                                        makeStructMemberOp( dstParam, srcselect, field, func, genericSubs, isGeneric, isDynamicLayout );
                                         ++parameter;
                                 } else {
                                         // no matching parameter, initialize field with default ctor
-                                        makeStructMemberOp( dstParam, NULL, field, func, genericSubs, isGeneric );
+                                        makeStructMemberOp( dstParam, NULL, field, func, genericSubs, isGeneric, isDynamicLayout );
                                 }
                         }
@@ -325 +325 @@
                 // Make function polymorphic in same parameters as generic struct, if applicable
                 bool isGeneric = false;  // NOTE this flag is an incredibly ugly kludge; we should fix the assignment signature instead (ditto for union)
+                bool isDynamicLayout = false;  // NOTE see above re: kludge
                 std::list< TypeDecl* >& genericParams = aggregateDecl->get_parameters();
                 std::list< Expression* > structParams;  // List of matching parameters to put on types
@@ -330 +331 @@
                 for ( std::list< TypeDecl* >::const_iterator param = genericParams.begin(); param != genericParams.end(); ++param ) {
                         isGeneric = true;
+                        if ( (*param)->get_kind() == TypeDecl::Any ) isDynamicLayout = true;
                         TypeDecl *typeParam = cloneAndRename( *param, "_autoassign_" + aggregateDecl->get_name() + "_" + (*param)->get_name() );
                         assignType->get_forall().push_back( typeParam );
@@ -389 +391 @@
                         FunctionDecl * ctor = new FunctionDecl( "?{}", functionNesting > 0 ? DeclarationNode::NoStorageClass : DeclarationNode::Static, LinkageSpec::AutoGen, memCtorType->clone(), new CompoundStmt( noLabels ), true, false );
                         ctor->fixUniqueId();
-                        makeStructFieldCtorBody( aggregateDecl->get_members().begin(), aggregateDecl->get_members().end(), ctor, genericSubs, isGeneric );
+                        makeStructFieldCtorBody( aggregateDecl->get_members().begin(), aggregateDecl->get_members().end(), ctor, genericSubs, isGeneric, isDynamicLayout );
                         memCtors.push_back( ctor );
                 }
@@ -395 +397 @@
 
                 // generate appropriate calls to member ctor, assignment
-                makeStructFunctionBody( aggregateDecl->get_members().begin(), aggregateDecl->get_members().end(), assignDecl, genericSubs, isGeneric );
-                makeStructFunctionBody( aggregateDecl->get_members().begin(), aggregateDecl->get_members().end(), ctorDecl, genericSubs, isGeneric );
-                makeStructFunctionBody( aggregateDecl->get_members().begin(), aggregateDecl->get_members().end(), copyCtorDecl, genericSubs, isGeneric );
+                makeStructFunctionBody( aggregateDecl->get_members().begin(), aggregateDecl->get_members().end(), assignDecl, genericSubs, isGeneric, isDynamicLayout );
+                makeStructFunctionBody( aggregateDecl->get_members().begin(), aggregateDecl->get_members().end(), ctorDecl, genericSubs, isGeneric, isDynamicLayout );
+                makeStructFunctionBody( aggregateDecl->get_members().begin(), aggregateDecl->get_members().end(), copyCtorDecl, genericSubs, isGeneric, isDynamicLayout );
                 // needs to do everything in reverse, so pass "forward" as false
-                makeStructFunctionBody( aggregateDecl->get_members().rbegin(), aggregateDecl->get_members().rend(), dtorDecl, genericSubs, isGeneric, false );
+                makeStructFunctionBody( aggregateDecl->get_members().rbegin(), aggregateDecl->get_members().rend(), dtorDecl, genericSubs, isGeneric, isDynamicLayout, false );
 
                 if ( ! isGeneric ) assignDecl->get_statements()->get_kids().push_back( new ReturnStmt( noLabels, new VariableExpr( srcParam ) ) );
@@ -414 +416 @@
 
                 // Make function polymorphic in same parameters as generic union, if applicable
-                bool isGeneric = false;  // NOTE this flag is an incredibly ugly kludge; we should fix the assignment signature instead (ditto for struct)
+                bool isDynamicLayout = false; // NOTE this flag is an incredibly ugly kludge; we should fix the assignment signature instead (ditto for struct)
                 std::list< TypeDecl* >& genericParams = aggregateDecl->get_parameters();
                 std::list< Expression* > unionParams;  // List of matching parameters to put on types
                 for ( std::list< TypeDecl* >::const_iterator param = genericParams.begin(); param != genericParams.end(); ++param ) {
-                        isGeneric = true;
+                        if ( (*param)->get_kind() == TypeDecl::Any ) isDynamicLayout = true;
                         TypeDecl *typeParam = cloneAndRename( *param, "_autoassign_" + aggregateDecl->get_name() + "_" + (*param)->get_name() );
                         assignType->get_forall().push_back( typeParam );
@@ -454 +456 @@
 
                 makeUnionFieldsAssignment( srcParam, dstParam, cloneWithParams( refType, unionParams ), back_inserter( assignDecl->get_statements()->get_kids() ) );
-                if ( isGeneric ) makeUnionFieldsAssignment( srcParam, returnVal, cloneWithParams( refType, unionParams ), back_inserter( assignDecl->get_statements()->get_kids() ) );
-
-                if ( ! isGeneric ) assignDecl->get_statements()->get_kids().push_back( new ReturnStmt( noLabels, new VariableExpr( srcParam ) ) );
+                if ( isDynamicLayout ) makeUnionFieldsAssignment( srcParam, returnVal, cloneWithParams( refType, unionParams ), back_inserter( assignDecl->get_statements()->get_kids() ) );
+                else assignDecl->get_statements()->get_kids().push_back( new ReturnStmt( noLabels, new VariableExpr( srcParam ) ) );
 
                 // body of assignment and copy ctor is the same