Starting a Java implementation of ast-to-instr.

Keeping things clean, this time.

9 files changed, 886 insertions, 0 deletions

diff --git a/ast-to-instr/src/IDs.java b/ast-to-instr/src/IDs.java
new file mode 100644
index 0000000..e3b9db4
--- /dev/null
+++ b/ast-to-instr/src/IDs.java
@@ -0,0 +1,78 @@
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Map;
+import java.util.HashMap;
+
+public class IDs
+{
+   /** Static *****************************************************************/
+   private static final Map<String, IDs> FROM_XML;
+   private static final Collection<IDs> ALL_IDS;
+   private static int next_id;
+
+   static
+   {
+      next_id = 0;
+
+      FROM_XML = new HashMap<String, IDs>();
+      ALL_IDS = new ArrayList<IDs>();
+   }
+
+
+   public static IDs get_id_from_xml_id
+   (
+      final String xml_id,
+      final String type
+   )
+   {
+      IDs result;
+
+      result = FROM_XML.get(xml_id);
+
+      if (result == null)
+      {
+         result = new IDs(type);
+
+         FROM_XML.put(xml_id, result);
+      }
+
+      return result;
+   }
+
+   public static IDs generate_new_id
+   (
+      final String type
+   )
+   {
+      final IDs result;
+
+      result = new IDs(type);
+
+      ALL_IDS.add(result);
+
+      return result;
+   }
+
+   /** Non-Static *************************************************************/
+   private final String type;
+   private final int value;
+
+   private IDs (final String type)
+   {
+      this.type = type;
+
+      value = IDs.next_id;
+
+      IDs.next_id += 1;
+   }
+
+   public String get_type ()
+   {
+      return type;
+   }
+
+   public int get_value ()
+   {
+      return value;
+   }
+}
diff --git a/ast-to-instr/src/Main.java b/ast-to-instr/src/Main.java
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/ast-to-instr/src/Main.java
diff --git a/ast-to-instr/src/Parameters.java b/ast-to-instr/src/Parameters.java
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/ast-to-instr/src/Parameters.java
diff --git a/ast-to-instr/src/ParsableXML.java b/ast-to-instr/src/ParsableXML.java
new file mode 100644
index 0000000..b190b48
--- /dev/null
+++ b/ast-to-instr/src/ParsableXML.java
@@ -0,0 +1,28 @@
+import org.w3c.dom.Node;
+
+import java.util.ArrayList;
+import java.util.Collection;
+
+import javax.xml.xpath.XPathExpressionException;
+
+public abstract class ParsableXML
+{
+   protected final IDs parent_id;
+   protected final Node xml_node;
+
+   public ParsableXML
+   (
+      final IDs parent_id,
+      final Node xml_node
+   )
+   {
+      this.parent_id = parent_id;
+      this.xml_node = xml_node;
+   }
+
+   public Collection<ParsableXML> parse ()
+   throws XPathExpressionException
+   {
+      return new ArrayList<ParsableXML>();
+   }
+}
diff --git a/ast-to-instr/src/Strings.java b/ast-to-instr/src/Strings.java
new file mode 100644
index 0000000..bc1778f
--- /dev/null
+++ b/ast-to-instr/src/Strings.java
@@ -0,0 +1,30 @@
+import java.util.Map;
+import java.util.HashMap;
+
+public class Strings
+{
+   private static final Map<String, IDs> TO_ID;
+
+   static
+   {
+      TO_ID = new HashMap<String, IDs>();
+   }
+
+   private Strings () {} /* Utility class. */
+
+   public static IDs get_id_from_string (final String string)
+   {
+      IDs result;
+
+      result = TO_ID.get(string);
+
+      if (result == null)
+      {
+         result = IDs.generate_new_id("string");
+
+         TO_ID.put(string, result);
+      }
+
+      return result;
+   }
+}
diff --git a/ast-to-instr/src/VHDLArchitecture.java b/ast-to-instr/src/VHDLArchitecture.java
new file mode 100644
index 0000000..ec8aa2a
--- /dev/null
+++ b/ast-to-instr/src/VHDLArchitecture.java
@@ -0,0 +1,316 @@
+import org.w3c.dom.Node;
+import org.w3c.dom.NodeList;
+
+import javax.xml.xpath.XPathConstants;
+import javax.xml.xpath.XPathExpression;
+import javax.xml.xpath.XPathExpressionException;
+
+import java.util.ArrayList;
+import java.util.Collection;
+
+public class VHDLArchitecture extends ParsableXML
+{
+   private static final XPathExpression GET_ENTITIES;
+
+   static
+   {
+      GET_ENTITIES = null;
+      /* TODO
+         Main.get_xpath().compile
+         (
+         );
+      */
+       //     "./*/*/library_unit[@kind=\"entity_declaration\"]"
+   }
+
+   public VHDLArchitecture
+   (
+      final IDs parent_id,
+      final Node xml_node
+   )
+   {
+      super(parent_id, xml_node);
+   }
+
+   @Override
+   public Collection<ParsableXML> parse ()
+   throws XPathExpressionException
+   {
+      final Collection<ParsableXML> result;
+      final String xml_id;
+      final IDs local_id;
+
+      result = new ArrayList<ParsableXML>();
+
+      xml_id = null; /* TODO: elem.attrib.get("id") */
+
+      local_id = IDs.get_id_from_xml_id(xml_id, "architecture");
+
+      /** Parent **************************************************************/
+      handle_link_to_file(local_id);
+      handle_link_to_entity(local_id);
+
+      /** Functions ***********************************************************/
+      handle_function_line(local_id);
+      handle_function_column(local_id);
+      handle_function_identifier(local_id);
+
+      /** Predicates **********************************************************/
+      handle_predicate_has_foreign_flag(local_id);
+      handle_predicate_has_visible_flag(local_id);
+      handle_predicate_is_withing_flag(local_id);
+      handle_predicate_end_has_reserved_id(local_id);
+      handle_predicate_end_has_identifier(local_id);
+
+      /** Children ************************************************************/
+      result.addAll(handle_child_signals(local_id));
+      result.addAll(handle_child_processes(local_id));
+      result.addAll(handle_child_components(local_id));
+
+      return null;
+   }
+
+   /***************************************************************************/
+   /** Parents ****************************************************************/
+   /***************************************************************************/
+   private void handle_link_to_file
+   (
+      final IDs local_id
+   )
+   {
+      final IDs params[];
+
+      params =
+         new IDs[]
+         {
+            local_id,
+            parent_id
+         };
+
+      /* TODO */
+   }
+
+   private void handle_link_to_entity
+   (
+      final IDs local_id
+   )
+   {
+      final IDs params[];
+
+      /* TODO */
+   }
+
+
+   /***************************************************************************/
+   /** Functions **************************************************************/
+   /***************************************************************************/
+   private void handle_function_line
+   (
+      final IDs local_id
+   )
+   {
+      final IDs params[];
+
+      params =
+         new IDs[]
+         {
+            local_id,
+            Strings.get_id_from_string
+            (
+               null /* TODO: get attribute */
+            )
+         };
+
+      /* Functions.add_entry("filename", params); */
+   }
+
+   private void handle_function_column
+   (
+      final IDs local_id
+   )
+   {
+      final IDs params[];
+
+      params =
+         new IDs[]
+         {
+            local_id,
+            Strings.get_id_from_string
+            (
+               null /* TODO: get attribute */
+            )
+         };
+
+      /* Functions.add_entry("filename", params); */
+   }
+
+   private void handle_function_identifier
+   (
+      final IDs local_id
+   )
+   {
+      final IDs params[];
+
+      params =
+         new IDs[]
+         {
+            local_id,
+            Strings.get_id_from_string
+            (
+               null /* TODO: get attribute */
+            )
+         };
+
+      /* Functions.add_entry("filename", params); */
+   }
+
+   /***************************************************************************/
+   /** Predicates *************************************************************/
+   /***************************************************************************/
+   private void handle_predicate_has_foreign_flag
+   (
+      final IDs local_id
+   )
+   {
+      final IDs params[];
+
+      params =
+         new IDs[]
+         {
+            local_id,
+            Strings.get_id_from_string
+            (
+               null /* TODO: get attribute */
+            )
+         };
+
+      /* Functions.add_entry("filename", params); */
+   }
+
+   private void handle_predicate_has_visible_flag
+   (
+      final IDs local_id
+   )
+   {
+      final IDs params[];
+
+      params =
+         new IDs[]
+         {
+            local_id,
+            Strings.get_id_from_string
+            (
+               null /* TODO: get attribute */
+            )
+         };
+
+      /* Functions.add_entry("filename", params); */
+   }
+
+   private void handle_predicate_is_withing_flag
+   (
+      final IDs local_id
+   )
+   {
+      final IDs params[];
+
+      params =
+         new IDs[]
+         {
+            local_id,
+            Strings.get_id_from_string
+            (
+               null /* TODO: get attribute */
+            )
+         };
+
+      /* Functions.add_entry("filename", params); */
+   }
+
+   private void handle_predicate_end_has_reserved_id
+   (
+      final IDs local_id
+   )
+   {
+      final IDs params[];
+
+      params =
+         new IDs[]
+         {
+            local_id,
+            Strings.get_id_from_string
+            (
+               null /* TODO: get attribute */
+            )
+         };
+
+      /* Functions.add_entry("filename", params); */
+   }
+
+   private void handle_predicate_end_has_identifier
+   (
+      final IDs local_id
+   )
+   {
+      final IDs params[];
+
+      params =
+         new IDs[]
+         {
+            local_id,
+            Strings.get_id_from_string
+            (
+               null /* TODO: get attribute */
+            )
+         };
+
+      /* Functions.add_entry("filename", params); */
+   }
+
+   /***************************************************************************/
+   /** Children ***************************************************************/
+   /***************************************************************************/
+   private Collection<ParsableXML> handle_child_signals
+   (
+      final IDs local_id
+   )
+   throws XPathExpressionException
+   {
+      final Collection<ParsableXML> result;
+      final NodeList entities;
+
+      entities =
+         (NodeList) GET_ENTITIES.evaluate
+         (
+            xml_node,
+            XPathConstants.NODESET
+         );
+
+      /* TODO */
+      return null;
+   }
+
+   private Collection<ParsableXML> handle_child_processes
+   (
+      final IDs local_id
+   )
+   throws XPathExpressionException
+   {
+      final Collection<ParsableXML> result;
+
+      /* TODO */
+      return null;
+   }
+
+   private Collection<ParsableXML> handle_child_components
+   (
+      final IDs local_id
+   )
+   throws XPathExpressionException
+   {
+      final Collection<ParsableXML> result;
+
+      /* TODO */
+      return null;
+   }
+}
diff --git a/ast-to-instr/src/VHDLEntity.java b/ast-to-instr/src/VHDLEntity.java
new file mode 100644
index 0000000..f56355c
--- /dev/null
+++ b/ast-to-instr/src/VHDLEntity.java
@@ -0,0 +1,292 @@
+import org.w3c.dom.Node;
+import org.w3c.dom.NodeList;
+
+import javax.xml.xpath.XPathConstants;
+import javax.xml.xpath.XPathExpression;
+import javax.xml.xpath.XPathExpressionException;
+
+import java.util.ArrayList;
+import java.util.Collection;
+
+public class VHDLEntity extends ParsableXML
+{
+   private static final XPathExpression GET_ENTITIES;
+
+   static
+   {
+      GET_ENTITIES = null;
+      /* TODO
+         Main.get_xpath().compile
+         (
+         );
+      */
+       //     "./*/*/library_unit[@kind=\"entity_declaration\"]"
+   }
+
+   public VHDLEntity
+   (
+      final IDs parent_id,
+      final Node xml_node
+   )
+   {
+      super(parent_id, xml_node);
+   }
+
+   @Override
+   public Collection<ParsableXML> parse ()
+   throws XPathExpressionException
+   {
+      final Collection<ParsableXML> result;
+      final String xml_id;
+      final IDs local_id;
+
+      result = new ArrayList<ParsableXML>();
+
+      xml_id = null; /* TODO: elem.attrib.get("id") */
+
+      local_id = IDs.get_id_from_xml_id(xml_id, "entity");
+
+      /** Parent **************************************************************/
+      handle_link_to_file(local_id);
+
+      /** Functions ***********************************************************/
+      handle_function_line(local_id);
+      handle_function_column(local_id);
+      handle_function_identifier(local_id);
+
+      /** Predicates **********************************************************/
+      handle_predicate_has_begin(local_id);
+      handle_predicate_has_visible_flag(local_id);
+      handle_predicate_is_withing_flag(local_id);
+      handle_predicate_end_has_reserved_id(local_id);
+      handle_predicate_end_has_identifier(local_id);
+
+      /** Children ************************************************************/
+      result.addAll(handle_child_ports(local_id));
+      result.addAll(handle_child_generics(local_id));
+
+      return null;
+   }
+
+   /***************************************************************************/
+   /** Parents ****************************************************************/
+   /***************************************************************************/
+   private void handle_link_to_file
+   (
+      final IDs local_id
+   )
+   {
+      final IDs params[];
+
+      params =
+         new IDs[]
+         {
+            local_id,
+            parent_id
+         };
+
+      /* TODO */
+   }
+
+
+   /***************************************************************************/
+   /** Functions **************************************************************/
+   /***************************************************************************/
+   private void handle_function_line
+   (
+      final IDs local_id
+   )
+   {
+      final IDs params[];
+
+      params =
+         new IDs[]
+         {
+            local_id,
+            Strings.get_id_from_string
+            (
+               null /* TODO: get attribute */
+            )
+         };
+
+      /* Functions.add_entry("filename", params); */
+   }
+
+   private void handle_function_column
+   (
+      final IDs local_id
+   )
+   {
+      final IDs params[];
+
+      params =
+         new IDs[]
+         {
+            local_id,
+            Strings.get_id_from_string
+            (
+               null /* TODO: get attribute */
+            )
+         };
+
+      /* Functions.add_entry("filename", params); */
+   }
+
+   private void handle_function_identifier
+   (
+      final IDs local_id
+   )
+   {
+      final IDs params[];
+
+      params =
+         new IDs[]
+         {
+            local_id,
+            Strings.get_id_from_string
+            (
+               null /* TODO: get attribute */
+            )
+         };
+
+      /* Functions.add_entry("filename", params); */
+   }
+
+   /***************************************************************************/
+   /** Predicates *************************************************************/
+   /***************************************************************************/
+   private void handle_predicate_has_begin
+   (
+      final IDs local_id
+   )
+   {
+      final IDs params[];
+
+      params =
+         new IDs[]
+         {
+            local_id,
+            Strings.get_id_from_string
+            (
+               null /* TODO: get attribute */
+            )
+         };
+
+      /* Functions.add_entry("filename", params); */
+   }
+
+   private void handle_predicate_has_visible_flag
+   (
+      final IDs local_id
+   )
+   {
+      final IDs params[];
+
+      params =
+         new IDs[]
+         {
+            local_id,
+            Strings.get_id_from_string
+            (
+               null /* TODO: get attribute */
+            )
+         };
+
+      /* Functions.add_entry("filename", params); */
+   }
+
+   private void handle_predicate_is_withing_flag
+   (
+      final IDs local_id
+   )
+   {
+      final IDs params[];
+
+      params =
+         new IDs[]
+         {
+            local_id,
+            Strings.get_id_from_string
+            (
+               null /* TODO: get attribute */
+            )
+         };
+
+      /* Functions.add_entry("filename", params); */
+   }
+
+   private void handle_predicate_end_has_reserved_id
+   (
+      final IDs local_id
+   )
+   {
+      final IDs params[];
+
+      params =
+         new IDs[]
+         {
+            local_id,
+            Strings.get_id_from_string
+            (
+               null /* TODO: get attribute */
+            )
+         };
+
+      /* Functions.add_entry("filename", params); */
+   }
+
+   private void handle_predicate_end_has_identifier
+   (
+      final IDs local_id
+   )
+   {
+      final IDs params[];
+
+      params =
+         new IDs[]
+         {
+            local_id,
+            Strings.get_id_from_string
+            (
+               null /* TODO: get attribute */
+            )
+         };
+
+      /* Functions.add_entry("filename", params); */
+   }
+
+   /***************************************************************************/
+   /** Children ***************************************************************/
+   /***************************************************************************/
+   private Collection<ParsableXML> handle_child_ports
+   (
+      final IDs local_id
+   )
+   throws XPathExpressionException
+   {
+      final Collection<ParsableXML> result;
+      final NodeList entities;
+
+      entities =
+         (NodeList) GET_ENTITIES.evaluate
+         (
+            xml_node,
+            XPathConstants.NODESET
+         );
+
+      /* TODO */
+      return null;
+   }
+
+   private Collection<ParsableXML> handle_child_generics
+   (
+      final IDs local_id
+   )
+   throws XPathExpressionException
+   {
+      final Collection<ParsableXML> result;
+
+      /* TODO */
+      return null;
+   }
+}
diff --git a/ast-to-instr/src/VHDLFile.java b/ast-to-instr/src/VHDLFile.java
new file mode 100644
index 0000000..beef2fe
--- /dev/null
+++ b/ast-to-instr/src/VHDLFile.java
@@ -0,0 +1,112 @@
+import org.w3c.dom.Node;
+import org.w3c.dom.NodeList;
+
+import javax.xml.xpath.XPathConstants;
+import javax.xml.xpath.XPathExpression;
+import javax.xml.xpath.XPathExpressionException;
+
+import java.util.ArrayList;
+import java.util.Collection;
+
+public class VHDLFile extends ParsableXML
+{
+   private static final XPathExpression GET_ENTITIES;
+
+   static
+   {
+      GET_ENTITIES = null;
+      /* TODO
+         Main.get_xpath().compile
+         (
+         );
+      */
+       //     "./*/*/library_unit[@kind=\"entity_declaration\"]"
+   }
+
+   public VHDLFile
+   (
+      final IDs parent_id,
+      final Node xml_node
+   )
+   {
+      super(parent_id, xml_node);
+   }
+
+   @Override
+   public Collection<ParsableXML> parse ()
+   throws XPathExpressionException
+   {
+      final Collection<ParsableXML> result;
+      final String xml_id;
+      final IDs local_id;
+
+      result = new ArrayList<ParsableXML>();
+
+      xml_id = null; /* TODO: elem.attrib.get("id") */
+
+      local_id = IDs.get_id_from_xml_id(xml_id, "file");
+
+      /** Functions ***********************************************************/
+      handle_function_filename(local_id);
+
+      /** Predicates **********************************************************/
+
+      /** Children ************************************************************/
+      result.addAll(handle_child_entities(local_id));
+      result.addAll(handle_child_architectures(local_id));
+
+      return null;
+   }
+
+   private void handle_function_filename
+   (
+      final IDs local_id
+   )
+   {
+      final IDs params[];
+
+      params =
+         new IDs[]
+         {
+            local_id,
+            Strings.get_id_from_string
+            (
+               null /* TODO: get attribute */
+            )
+         };
+
+      /* Functions.add_entry("filename", params); */
+   }
+
+   private Collection<ParsableXML> handle_child_entities
+   (
+      final IDs local_id
+   )
+   throws XPathExpressionException
+   {
+      final Collection<ParsableXML> result;
+      final NodeList entities;
+
+      entities =
+         (NodeList) GET_ENTITIES.evaluate
+         (
+            xml_node,
+            XPathConstants.NODESET
+         );
+
+      /* TODO */
+      return null;
+   }
+
+   private Collection<ParsableXML> handle_child_architectures
+   (
+      final IDs local_id
+   )
+   throws XPathExpressionException
+   {
+      final Collection<ParsableXML> result;
+
+      /* TODO */
+      return null;
+   }
+}
diff --git a/ast-to-instr/src/Waveforms.java b/ast-to-instr/src/Waveforms.java
new file mode 100644
index 0000000..753bae3
--- /dev/null
+++ b/ast-to-instr/src/Waveforms.java
@@ -0,0 +1,30 @@
+import java.util.Map;
+import java.util.HashMap;
+
+public class Waveforms
+{
+   private static final Map<IDs, IDs> TO_WAVEFORM;
+
+   static
+   {
+      TO_WAVEFORM = new HashMap<IDs, IDs>();
+   }
+
+   private Waveforms () {} /* Utility class. */
+
+   public static IDs get_associated_waveform_id (final IDs source)
+   {
+      IDs result;
+
+      result = TO_WAVEFORM.get(source);
+
+      if (result == null)
+      {
+         result = IDs.generate_new_id("waveform");
+
+         TO_WAVEFORM.put(source, result);
+      }
+
+      return result;
+   }
+}