Changeset d0f8b19 for src/SymTab/Autogen.cc

Timestamp:

Jun 7, 2016, 4:51:26 PM (8 years ago)

Author:

Rob Schluntz <rschlunt@…>

Branches:

ADT, aaron-thesis, arm-eh, ast-experimental, cleanup-dtors, ctor, deferred_resn, demangler, enum, forall-pointer-decay, gc_noraii, 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:

8abfdb4

Parents:

a436947

Message:

generate ctor/dtors for enum types

File:

• src/SymTab/Autogen.cc (modified) (1 diff)

src/SymTab/Autogen.cc

@@ -102 +102 @@
                 FunctionType *assignType = new FunctionType( Type::Qualifiers(), false );
 
+                ObjectDecl *dstParam = new ObjectDecl( "_dst", DeclarationNode::NoStorageClass, LinkageSpec::Cforall, 0, new PointerType( Type::Qualifiers(), refType ), 0 );
+                assignType->get_parameters().push_back( dstParam );
+
+                // void ?{}(E *); void ^?{}(E *);
+                FunctionType * ctorType = assignType->clone();
+                FunctionType * dtorType = assignType->clone();
+
+                ObjectDecl *srcParam = new ObjectDecl( "_src", DeclarationNode::NoStorageClass, LinkageSpec::Cforall, 0, refType->clone(), 0 );
+                assignType->get_parameters().push_back( srcParam );
+                // void ?{}(E *, E);
+                FunctionType *copyCtorType = assignType->clone();
+
+                // T ?=?(E *, E);
                 ObjectDecl *returnVal = new ObjectDecl( "", DeclarationNode::NoStorageClass, LinkageSpec::Cforall, 0, refType->clone(), 0 );
                 assignType->get_returnVals().push_back( returnVal );
 
-                // need two assignment operators with different types
-                FunctionType * assignType2 = assignType->clone();
-
-                // E ?=?(E volatile *, E)
-                Type *etype = refType->clone();
-                // etype->get_qualifiers() += Type::Qualifiers(false, true, false, false, false, false);
-
-                ObjectDecl *dstParam = new ObjectDecl( "_dst", DeclarationNode::NoStorageClass, LinkageSpec::Cforall, 0, new PointerType( Type::Qualifiers(), etype ), 0 );
-                assignType->get_parameters().push_back( dstParam );
-
-                ObjectDecl *srcParam = new ObjectDecl( "_src", DeclarationNode::NoStorageClass, LinkageSpec::Cforall, 0, etype->clone(), 0 );
-                assignType->get_parameters().push_back( srcParam );
-
-                // E ?=?(E volatile *, int)
-                assignType2->get_parameters().push_back( dstParam->clone() );
-                BasicType * paramType = new BasicType(Type::Qualifiers(), BasicType::SignedInt);
-                ObjectDecl *srcParam2 = new ObjectDecl( "_src", DeclarationNode::NoStorageClass, LinkageSpec::Cforall, 0, paramType, 0 );
-                assignType2->get_parameters().push_back( srcParam2 );
+                // xxx - should we also generate void ?{}(E *, int) and E ?{}(E *, E)?
+                // right now these cases work, but that might change.
 
                 // Routines at global scope marked "static" to prevent multiple definitions is separate translation units
                 // because each unit generates copies of the default routines for each aggregate.
-
-                // since there is no definition, these should not be inline
-                // make these intrinsic so that the code generator does not make use of them
-                FunctionDecl *assignDecl = new FunctionDecl( "?=?", functionNesting > 0 ? DeclarationNode::NoStorageClass : DeclarationNode::Static, LinkageSpec::Intrinsic, assignType, 0, true, false );
+                // xxx - Temporary: make these functions intrinsic so they codegen as C assignment.
+                // Really they're something of a cross between instrinsic and autogen, so should
+                // probably make a new linkage type
+                FunctionDecl *assignDecl = new FunctionDecl( "?=?", functionNesting > 0 ? DeclarationNode::NoStorageClass : DeclarationNode::Static, LinkageSpec::Intrinsic, assignType, new CompoundStmt( noLabels ), true, false );
+                FunctionDecl *ctorDecl = new FunctionDecl( "?{}", functionNesting > 0 ? DeclarationNode::NoStorageClass : DeclarationNode::Static, LinkageSpec::Intrinsic, ctorType, new CompoundStmt( noLabels ), true, false );
+                FunctionDecl *copyCtorDecl = new FunctionDecl( "?{}", functionNesting > 0 ? DeclarationNode::NoStorageClass : DeclarationNode::Static, LinkageSpec::Intrinsic, copyCtorType, new CompoundStmt( noLabels ), true, false );
+                FunctionDecl *dtorDecl = new FunctionDecl( "^?{}", functionNesting > 0 ? DeclarationNode::NoStorageClass : DeclarationNode::Static, LinkageSpec::Intrinsic, dtorType, new CompoundStmt( noLabels ), true, false );
                 assignDecl->fixUniqueId();
-                FunctionDecl *assignDecl2 = new FunctionDecl( "?=?", functionNesting > 0 ? DeclarationNode::NoStorageClass : DeclarationNode::Static, LinkageSpec::Intrinsic, assignType2, 0, true, false );
-                assignDecl2->fixUniqueId();
-
-                // these should be built in the same way that the prelude
-                // functions are, so build a list containing the prototypes
-                // and allow MakeLibCfa to autogenerate the bodies.
-                std::list< Declaration * > assigns;
-                assigns.push_back( assignDecl );
-                assigns.push_back( assignDecl2 );
-
-                LibCfa::makeLibCfa( assigns );
-
-                // need to remove the prototypes, since this may be nested in a routine
-                for (int start = 0, end = assigns.size()/2; start < end; start++) {
-                        delete assigns.front();
-                        assigns.pop_front();
-                } // for
-
-                declsToAdd.insert( declsToAdd.begin(), assigns.begin(), assigns.end() );
+                ctorDecl->fixUniqueId();
+                copyCtorDecl->fixUniqueId();
+                dtorDecl->fixUniqueId();
+
+                // enum copy construct and assignment is just C-style assignment.
+                // this looks like a bad recursive call, but code gen will turn it into
+                // a C-style assignment.
+                // This happens before function pointer type conversion, so need to do it manually here
+                VariableExpr * assignVarExpr = new VariableExpr( assignDecl );
+                Type *& assignVarExprType = assignVarExpr->get_results().front();
+                assignVarExprType = new PointerType( Type::Qualifiers(), assignVarExprType );
+                ApplicationExpr * assignExpr = new ApplicationExpr( assignVarExpr );
+                assignExpr->get_args().push_back( new VariableExpr( dstParam ) );
+                assignExpr->get_args().push_back( new VariableExpr( srcParam ) );
+
+                // body is either return stmt or expr stmt
+                assignDecl->get_statements()->get_kids().push_back( new ReturnStmt( noLabels, assignExpr ) );
+                copyCtorDecl->get_statements()->get_kids().push_back( new ExprStmt( noLabels, assignExpr->clone() ) );
+
+                declsToAdd.push_back( assignDecl );
+                declsToAdd.push_back( ctorDecl );
+                declsToAdd.push_back( copyCtorDecl );
+                declsToAdd.push_back( dtorDecl );
         }