Initial Pass at Attribute parsing

include/sta/ConcreteLibrary.hh

@@ -38,6 +38,7 @@ class LibertyCell;
 class LibertyPort;
 
 typedef Map<const char*, ConcreteCell*, CharPtrLess> ConcreteCellMap;
+typedef Map<std::string, const char*> AttributeMap;
 typedef Vector<ConcretePort*> ConcretePortSeq;
 typedef Map<const char*, ConcretePort*, CharPtrLess> ConcretePortMap;
 typedef ConcreteCellMap::ConstIterator ConcreteLibraryCellIterator;
@@ -105,6 +106,8 @@ public:
   ConcreteCellPortBitIterator *portBitIterator() const;
   bool isLeaf() const { return is_leaf_; }
   void setIsLeaf(bool is_leaf);
+  void setAttribute(const char *key, const char *value);
+  const char *getAttribute(const char *key) const;
 
   // Cell acts as port factory.
   ConcretePort *makePort(const char *name);
@@ -158,6 +161,7 @@ protected:
   // Port bit count (expanded buses).
   int port_bit_count_;
   bool is_leaf_;
+  AttributeMap attribute_map_;
 
 private:
   friend class ConcreteLibrary;

include/sta/ConcreteNetwork.hh

@@ -38,6 +38,7 @@ class ConcreteBindingTbl;
 class ConcreteLibertyLibraryIterator;
 
 typedef Vector<ConcreteLibrary*> ConcreteLibrarySeq;
+typedef Map<std::string, const char*> AttributeMap;
 typedef Map<const char*, ConcreteLibrary*, CharPtrLess> ConcreteLibraryMap;
 typedef ConcreteLibrarySeq::ConstIterator ConcreteLibraryIterator;
 typedef Map<const char *, ConcreteInstance*,
@@ -74,6 +75,7 @@ public:
                             const PatternMatch *pattern) const override;
 
   const char *name(const Cell *cell) const override;
+  const char *getAttribute(const Cell *cell, const char *key) const override;
   ObjectId id(const Cell *cell) const override;
   Library *library(const Cell *cell) const override;
   LibertyCell *libertyCell(Cell *cell) const override;
@@ -108,6 +110,7 @@ public:
   PortMemberIterator *memberIterator(const Port *port) const override;
 
   const char *name(const Instance *instance) const override;
+  const char *getAttribute(const Instance *inst, const char *key) const override;
   ObjectId id(const Instance *instance) const override;
   Cell *cell(const Instance *instance) const override;
   Instance *parent(const Instance *instance) const override;
@@ -175,6 +178,9 @@ public:
                const char *name) override;
   void setIsLeaf(Cell *cell,
                  bool is_leaf) override;
+  void setAttribute(Cell *cell,
+			 const char *key,
+       const char *value) override;
   Port *makePort(Cell *cell,
                  const char *name) override;
   Port *makeBusPort(Cell *cell,
@@ -206,6 +212,9 @@ public:
   Pin *connect(Instance *inst,
                LibertyPort *port,
                Net *net) override;
+  void setAttribute(Instance *inst,
+		       const char *key,
+		       const char *value) override;
   void disconnectPin(Pin *pin) override;
   void deletePin(Pin *pin) override;
   Net *makeNet(const char *name,
@@ -285,6 +294,8 @@ public:
   InstanceNetIterator *netIterator() const;
   Instance *findChild(const char *name) const;
   InstanceChildIterator *childIterator() const;
+  void setAttribute(const char *key, const char *value);
+  const char *getAttribute(const char *key) const;
   void addChild(ConcreteInstance *child);
   void deleteChild(ConcreteInstance *child);
   void addPin(ConcretePin *pin);
@@ -310,6 +321,7 @@ protected:
   ConcretePinSeq pins_;
   ConcreteInstanceChildMap *children_;
   ConcreteInstanceNetMap *nets_;
+  AttributeMap attribute_map_;
 
 private:
   friend class ConcreteNetwork;

include/sta/Network.hh

@@ -144,6 +144,8 @@ public:
   virtual Cell *cell(LibertyCell *cell) const = 0;
   // Filename may return null.
   virtual const char *filename(const Cell *cell) = 0;
+  // Attributes can be null
+  virtual const char *getAttribute(const Cell *cell, const char *key) const = 0;
   // Name can be a simple, bundle, bus, or bus bit name.
   virtual Port *findPort(const Cell *cell,
 			 const char *name) const = 0;
@@ -206,6 +208,7 @@ public:
                                             const PatternMatch *pattern) const;
   virtual InstanceSeq findInstancesHierMatching(const Instance *instance,
                                                 const PatternMatch *pattern) const;
+  virtual const char *getAttribute(const Instance *inst, const char *key) const = 0;
   // Hierarchical path name.
   virtual const char *pathName(const Instance *instance) const;
   bool pathNameLess(const Instance *inst1,
@@ -544,6 +547,12 @@ public:
 		       const char *name) = 0;
   virtual void setIsLeaf(Cell *cell,
 			 bool is_leaf) = 0;
+  virtual void setAttribute(Cell *cell,
+      const char *key,
+      const char *value) = 0;
+  virtual void setAttribute(Instance *instance,
+    const char *key,
+    const char *value) = 0;
   virtual Port *makePort(Cell *cell,
 			 const char *name) = 0;
   virtual Port *makeBusPort(Cell *cell,

include/sta/SdcNetwork.hh

@@ -45,6 +45,7 @@ public:
                             const PatternMatch *pattern) const override;
 
   const char *name(const Cell *cell) const override;
+  const char *getAttribute(const Cell *cell, const char* key) const override;
   ObjectId id(const Cell *cell) const override;
   Library *library(const Cell *cell) const override;
   LibertyCell *libertyCell(Cell *cell) const override;
@@ -80,6 +81,7 @@ public:
   bool hasMembers(const Port *port) const override;
 
   ObjectId id(const Instance *instance) const override;
+  const char *getAttribute(const Instance *inst, const char* key) const override;
   Instance *topInstance() const override;
   Cell *cell(const Instance *instance) const override;
   Instance *parent(const Instance *instance) const override;