diff options
Diffstat (limited to 'src/expr/node_manager.cpp')
-rw-r--r-- | src/expr/node_manager.cpp | 26 |
1 files changed, 14 insertions, 12 deletions
diff --git a/src/expr/node_manager.cpp b/src/expr/node_manager.cpp index d2ac7e2a1..f7e76c06b 100644 --- a/src/expr/node_manager.cpp +++ b/src/expr/node_manager.cpp @@ -169,6 +169,8 @@ NodeManager::~NodeManager() { for(unsigned i = 0; i < unsigned(kind::LAST_KIND); ++i) { d_operators[i] = Node::null(); } + + d_unique_vars.clear(); //d_tupleAndRecordTypes.clear(); d_tt_cache.d_children.clear(); @@ -681,18 +683,18 @@ Node NodeManager::mkInstConstant(const TypeNode& type) { return n; } -Node NodeManager::mkSepNil(const TypeNode& type) { - Node n = NodeBuilder<0>(this, kind::SEP_NIL); - n.setAttribute(TypeAttr(), type); - n.setAttribute(TypeCheckedAttr(), true); - return n; -} - -Node* NodeManager::mkSepNilPtr(const TypeNode& type) { - Node* n = NodeBuilder<0>(this, kind::SEP_NIL).constructNodePtr(); - setAttribute(*n, TypeAttr(), type); - setAttribute(*n, TypeCheckedAttr(), true); - return n; +Node NodeManager::mkUniqueVar(const TypeNode& type, Kind k) { + std::map< TypeNode, Node >::iterator it = d_unique_vars[k].find( type ); + if( it==d_unique_vars[k].end() ){ + Node n = NodeBuilder<0>(this, k); + n.setAttribute(TypeAttr(), type); + n.setAttribute(TypeCheckedAttr(), true); + d_unique_vars[k][type] = n; + Assert( n.getMetaKind() == kind::metakind::VARIABLE ); + return n; + }else{ + return it->second; + } } Node NodeManager::mkAbstractValue(const TypeNode& type) { |