Changeset a172972 for src/SymTab

Timestamp:

Feb 23, 2016, 11:20:39 AM (9 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:

ae42f2a

Parents:

7528ba1 (diff), 6ce67ce (diff)
Note: this is a merge changeset, the changes displayed below correspond to the merge itself.
Use the (diff) links above to see all the changes relative to each parent.

Message:

Merge branch 'master' into ctor

Conflicts:

src/ResolvExpr/Resolver.cc

File:

• src/SymTab/Validate.cc (modified) (5 diffs)

src/SymTab/Validate.cc

@@ -396 +396 @@
                 // it's not a semantic error if the struct is not found, just an implicit forward declaration
                 if ( st ) {
-                        assert( ! structInst->get_baseStruct() || structInst->get_baseStruct()->get_members().empty() || ! st->get_members().empty() );
+                        //assert( ! structInst->get_baseStruct() || structInst->get_baseStruct()->get_members().empty() || ! st->get_members().empty() );
                         structInst->set_baseStruct( st );
                 } // if
@@ -673 +673 @@
         }
 
+        /// Creates a new type decl that's the same as src, but renamed and with only the ?=? assertion (for complete types only)
+        TypeDecl *cloneAndRename( TypeDecl *src, const std::string &name ) {
+                TypeDecl *dst = new TypeDecl( name, src->get_storageClass(), 0, src->get_kind() );
+
+                if ( src->get_kind() == TypeDecl::Any ) {
+                        // just include assignment operator assertion
+                        TypeInstType *assignParamType = new TypeInstType( Type::Qualifiers(), name, dst );
+                        FunctionType *assignFunctionType = new FunctionType( Type::Qualifiers(), false );
+                        assignFunctionType->get_returnVals().push_back(
+                                new ObjectDecl( "", DeclarationNode::NoStorageClass, LinkageSpec::Cforall, 0, assignParamType->clone(), 0 ) );
+                        assignFunctionType->get_parameters().push_back(
+                                new ObjectDecl( "", DeclarationNode::NoStorageClass, LinkageSpec::Cforall, 0, new PointerType( Type::Qualifiers(), assignParamType->clone() ), 0 ) );
+                        assignFunctionType->get_parameters().push_back(
+                                new ObjectDecl( "", DeclarationNode::NoStorageClass, LinkageSpec::Cforall, 0, assignParamType, 0 ) );
+                        FunctionDecl *assignAssert = new FunctionDecl( "?=?", DeclarationNode::NoStorageClass, LinkageSpec::Cforall, assignFunctionType, 0, false, false );
+                        dst->get_assertions().push_back( assignAssert );
+                }
+
+                return dst;
+        }
+
         Declaration *makeStructAssignment( StructDecl *aggregateDecl, StructInstType *refType, unsigned int functionNesting ) {
                 FunctionType *assignType = new FunctionType( Type::Qualifiers(), false );
@@ -680 +701 @@
                 std::list< TypeDecl* >& genericParams = aggregateDecl->get_parameters();
                 std::list< Expression* > structParams;  // List of matching parameters to put on types
+                TypeSubstitution genericSubs; // Substitutions to make to member types of struct
                 for ( std::list< TypeDecl* >::const_iterator param = genericParams.begin(); param != genericParams.end(); ++param ) {
                         isGeneric = true;
-                        TypeDecl *typeParam = (*param)->clone();
+                        TypeDecl *typeParam = cloneAndRename( *param, "_autoassign_" + aggregateDecl->get_name() + "_" + (*param)->get_name() );
                         assignType->get_forall().push_back( typeParam );
-                        structParams.push_back( new TypeExpr( new TypeInstType( Type::Qualifiers(), typeParam->get_name(), typeParam ) ) );
+                        TypeInstType *newParamType = new TypeInstType( Type::Qualifiers(), typeParam->get_name(), typeParam );
+                        genericSubs.add( (*param)->get_name(), newParamType );
+                        structParams.push_back( new TypeExpr( newParamType ) );
                 }
 
@@ -715 +739 @@
                                 }
 
-                                if ( ArrayType *array = dynamic_cast< ArrayType * >( dwt->get_type() ) ) {
-                                        makeArrayAssignment( srcParam, dstParam, dwt, array, back_inserter( assignDecl->get_statements()->get_kids() ) );
-                                        if ( isGeneric ) makeArrayAssignment( srcParam, returnVal, dwt, array, back_inserter( assignDecl->get_statements()->get_kids() ) );
+                                if ( isGeneric ) {
+                                        // rewrite member type in terms of the type variables on this operator
+                                        DeclarationWithType *fixedMember = dwt->clone();
+                                        genericSubs.apply( fixedMember );
+
+                                        // assign to both destination and return value
+                                        if ( ArrayType *array = dynamic_cast< ArrayType * >( fixedMember->get_type() ) ) {
+                                                makeArrayAssignment( srcParam, dstParam, fixedMember, array, back_inserter( assignDecl->get_statements()->get_kids() ) );
+                                                makeArrayAssignment( srcParam, returnVal, fixedMember, array, back_inserter( assignDecl->get_statements()->get_kids() ) );
+                                        } else {
+                                                makeScalarAssignment( srcParam, dstParam, fixedMember, back_inserter( assignDecl->get_statements()->get_kids() ) );
+                                                makeScalarAssignment( srcParam, returnVal, fixedMember, back_inserter( assignDecl->get_statements()->get_kids() ) );
+                                        } // if
                                 } else {
-                                        makeScalarAssignment( srcParam, dstParam, dwt, back_inserter( assignDecl->get_statements()->get_kids() ) );
-                                        if ( isGeneric ) makeScalarAssignment( srcParam, returnVal, dwt, back_inserter( assignDecl->get_statements()->get_kids() ) );
+                                        // assign to destination
+                                        if ( ArrayType *array = dynamic_cast< ArrayType * >( dwt->get_type() ) ) {
+                                                makeArrayAssignment( srcParam, dstParam, dwt, array, back_inserter( assignDecl->get_statements()->get_kids() ) );
+                                        } else {
+                                                makeScalarAssignment( srcParam, dstParam, dwt, back_inserter( assignDecl->get_statements()->get_kids() ) );
+                                        } // if
                                 } // if
                         } // if
@@ -799 +837 @@
                 for ( std::list< TypeDecl* >::const_iterator param = genericParams.begin(); param != genericParams.end(); ++param ) {
                         isGeneric = true;
-                        TypeDecl *typeParam = (*param)->clone();
+                        TypeDecl *typeParam = cloneAndRename( *param, "_autoassign_" + aggregateDecl->get_name() + "_" + (*param)->get_name() );
                         assignType->get_forall().push_back( typeParam );
                         unionParams.push_back( new TypeExpr( new TypeInstType( Type::Qualifiers(), typeParam->get_name(), typeParam ) ) );