summaryrefslogtreecommitdiff
path: root/src/ghdl2hastabel/vhdl/Component.java
diff options
context:
space:
mode:
Diffstat (limited to 'src/ghdl2hastabel/vhdl/Component.java')
-rw-r--r--src/ghdl2hastabel/vhdl/Component.java449
1 files changed, 449 insertions, 0 deletions
diff --git a/src/ghdl2hastabel/vhdl/Component.java b/src/ghdl2hastabel/vhdl/Component.java
new file mode 100644
index 0000000..8c2d4fe
--- /dev/null
+++ b/src/ghdl2hastabel/vhdl/Component.java
@@ -0,0 +1,449 @@
+package ghdl2hastabel.vhdl;
+
+import ghdl2hastabel.Main;
+import ghdl2hastabel.Strings;
+import ghdl2hastabel.Waveforms;
+import ghdl2hastabel.Functions;
+import ghdl2hastabel.Predicates;
+import ghdl2hastabel.ParsableXML;
+import ghdl2hastabel.XMLManager;
+import ghdl2hastabel.IDs;
+
+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.Stack;
+
+public class Component extends ParsableXML
+{
+ private static final XPathExpression XPE_FIND_INST_UNIT;
+ private static final XPathExpression XPE_FIND_BASE_NAME;
+ private static final XPathExpression XPE_FIND_ENTITY_NAME;
+ private static final XPathExpression XPE_FIND_LIBRARY_NAME;
+
+ private static final XPathExpression XPE_FIND_PORT_MAPS;
+ private static final XPathExpression XPE_FIND_REAL_PORTS;
+ private static final XPathExpression XPE_FIND_ACTUAL_NE;
+ private static final XPathExpression XPE_FIND_FORMAL;
+
+ private static final XPathExpression XPE_FIND_GENERIC_MAPS;
+
+ static
+ {
+ XPE_FIND_INST_UNIT = XMLManager.compile_or_die("./instantiated_unit");
+ XPE_FIND_BASE_NAME = XMLManager.compile_or_die("./base_name");
+
+ XPE_FIND_ENTITY_NAME = XMLManager.compile_or_die
+ (
+ "./entity_name[@kind=\"selected_name\"]"
+ );
+
+ XPE_FIND_LIBRARY_NAME = XMLManager.compile_or_die
+ (
+ "./prefix[@kind=\"simple_name\"]"
+ );
+
+ XPE_FIND_PORT_MAPS =
+ XMLManager.compile_or_die
+ (
+ "./port_map_aspect_chain/el"
+ + "[@kind=\"association_element_by_expression\"]"
+ );
+
+ XPE_FIND_REAL_PORTS =
+ XMLManager.compile_or_die
+ (
+ "./port_chain/el[@kind=\"interface_signal_declaration\"]"
+ );
+
+ XPE_FIND_ACTUAL_NE = XMLManager.compile_or_die("./actual/named_entity");
+ XPE_FIND_FORMAL = XMLManager.compile_or_die("./formal");
+
+ XPE_FIND_GENERIC_MAPS = null; /* TODO */
+ }
+
+ public Component
+ (
+ final IDs parent_id,
+ final Node xml_node
+ )
+ {
+ super(parent_id, xml_node);
+ }
+
+ @Override
+ public void parse
+ (
+ final Stack<ParsableXML> waiting_list
+ )
+ throws XPathExpressionException
+ {
+ final String xml_id;
+ final IDs local_id;
+ final Node linked_entity;
+
+ xml_id = XMLManager.get_attribute(xml_node, "id");
+
+ local_id = IDs.get_id_from_xml_id(xml_id, "component");
+
+ /** Parent **************************************************************/
+ handle_link_to_architecture(local_id);
+ linked_entity = handle_link_to_entity(local_id);
+
+ /** Functions ***********************************************************/
+ handle_function_line(local_id);
+ handle_function_column(local_id);
+ handle_function_label(local_id);
+
+ /** Predicates **********************************************************/
+
+ if (linked_entity != (Node) null)
+ {
+ handle_predicate_port_maps(local_id, linked_entity);
+ handle_predicate_generic_maps(local_id, linked_entity);
+ }
+ }
+
+ /***************************************************************************/
+ /** Parents ****************************************************************/
+ /***************************************************************************/
+ private void handle_link_to_architecture
+ (
+ final IDs local_id
+ )
+ {
+ Predicates.add_entry("belongs_to_architecture", local_id, parent_id);
+ }
+
+ private Node find_entity_from_internal_ref (Node current_node)
+ throws XPathExpressionException
+ {
+ XPathExpression current_query;
+
+ /*
+ * Get the item containing the reference to the internal description
+ * of this component.
+ */
+ current_node =
+ (Node) XPE_FIND_BASE_NAME.evaluate
+ (
+ current_node,
+ XPathConstants.NODE
+ );
+
+ /* Get the referenced component declaration. */
+ current_query =
+ XMLManager.compile_or_die
+ (
+ "./../../declaration_chain/el[@kind=\"component_declaration\"]"
+ + "[@id=\""
+ + XMLManager.get_attribute(current_node, "ref")
+ + "\"]"
+ );
+ current_node =
+ (Node) current_query.evaluate
+ (
+ xml_node,
+ XPathConstants.NODE
+ );
+
+ /* Actually get the entity. */
+ current_query =
+ XMLManager.compile_or_die
+ (
+ ".//library_unit[@kind=\"entity_declaration\"][@identifier=\""
+ + XMLManager.get_attribute(current_node, "identifier")
+ + "\"]"
+ );
+
+ return
+ (Node) current_query.evaluate
+ (
+ Main.get_xml_root(),
+ XPathConstants.NODE
+ );
+ }
+
+ private Node find_entity_from_direct_ref (final Node source_node)
+ throws XPathExpressionException
+ {
+ final XPathExpression xpe_get_matching_entity;
+ final Node entity_ref, library_ref;
+
+ entity_ref =
+ (Node) XPE_FIND_ENTITY_NAME.evaluate
+ (
+ source_node,
+ XPathConstants.NODE
+ );
+
+ library_ref =
+ (Node) XPE_FIND_ENTITY_NAME.evaluate
+ (
+ entity_ref,
+ XPathConstants.NODE
+ );
+
+ xpe_get_matching_entity =
+ XMLManager.compile_or_die
+ (
+ "./el[@kind=\"library_declaration\"][@identifier=\""
+ + XMLManager.get_attribute(library_ref, "identifier")
+ + "\"]//library_unit[@kind=\"entity_declaration\"][@identifier=\""
+ + XMLManager.get_attribute(entity_ref, "identifier")
+ + "\"]"
+ );
+
+ return
+ (Node) xpe_get_matching_entity.evaluate
+ (
+ Main.get_xml_root(),
+ XPathConstants.NODE
+ );
+ }
+
+ private Node handle_link_to_entity
+ (
+ final IDs local_id
+ )
+ throws XPathExpressionException
+ {
+ final String kind;
+ Node current_node;
+
+ current_node =
+ (Node) XPE_FIND_INST_UNIT.evaluate
+ (
+ xml_node,
+ XPathConstants.NODE
+ );
+
+ kind = XMLManager.get_attribute(current_node, "kind");
+
+ if (kind.equals("simple_name"))
+ {
+ current_node = find_entity_from_internal_ref(current_node);
+ }
+ else if (kind.equals("entity_aspect_entity"))
+ {
+ current_node = find_entity_from_direct_ref(current_node);
+ }
+ else
+ {
+ System.err.println
+ (
+ "[E] Unsupported component instantiation type for element "
+ + local_id.get_value()
+ + " (XML_ID: "
+ + XMLManager.get_attribute(xml_node, "id")
+ + ")."
+ );
+
+ return null;
+ }
+
+ if (current_node == (Node) null)
+ {
+ System.err.println
+ (
+ "[E] Could not find any entity for the component instantiation "
+ + local_id.get_value()
+ + " (XML_ID: "
+ + XMLManager.get_attribute(xml_node, "id")
+ + ")."
+ );
+
+ return null;
+ }
+
+ Predicates.add_entry
+ (
+ "is_component_of",
+ local_id,
+ IDs.get_id_from_xml_id
+ (
+ XMLManager.get_attribute(current_node, "id"),
+ "entity"
+ )
+ );
+
+ return current_node;
+ }
+
+ /***************************************************************************/
+ /** Functions **************************************************************/
+ /***************************************************************************/
+ private void handle_function_line
+ (
+ final IDs local_id
+ )
+ {
+ Functions.add_entry
+ (
+ "line",
+ local_id,
+ Strings.get_id_from_string
+ (
+ XMLManager.get_attribute(xml_node, "line")
+ )
+ );
+ }
+
+ private void handle_function_column
+ (
+ final IDs local_id
+ )
+ {
+ Functions.add_entry
+ (
+ "column",
+ local_id,
+ Strings.get_id_from_string
+ (
+ XMLManager.get_attribute(xml_node, "col")
+ )
+ );
+ }
+
+ private void handle_function_label
+ (
+ final IDs local_id
+ )
+ {
+ Functions.add_entry
+ (
+ "label",
+ local_id,
+ Strings.get_id_from_string
+ (
+ XMLManager.get_attribute(xml_node, "label")
+ )
+ );
+ }
+
+ /***************************************************************************/
+ /** Predicates *************************************************************/
+ /***************************************************************************/
+ private void handle_predicate_port_maps
+ (
+ final IDs local_id,
+ final Node linked_entity
+ )
+ throws XPathExpressionException
+ {
+ final NodeList port_maps, real_ports;
+ final int port_maps_length;
+
+ port_maps =
+ (NodeList) XPE_FIND_PORT_MAPS.evaluate
+ (
+ xml_node,
+ XPathConstants.NODESET
+ );
+
+ real_ports =
+ (NodeList) XPE_FIND_REAL_PORTS.evaluate
+ (
+ linked_entity,
+ XPathConstants.NODESET
+ );
+
+ port_maps_length = port_maps.getLength();
+
+ for (int i = 0; i < port_maps_length; ++i)
+ {
+ final Node mapping, formal_name, actual_waveform;
+
+ mapping = port_maps.item(i);
+
+ actual_waveform =
+ (Node) XPE_FIND_ACTUAL_NE.evaluate
+ (
+ mapping,
+ XPathConstants.NODE
+ );
+
+ formal_name =
+ (Node) XPE_FIND_FORMAL.evaluate
+ (
+ mapping,
+ XPathConstants.NODE
+ );
+
+ if (formal_name == null)
+ {
+ Predicates.add_entry
+ (
+ "port_maps",
+ local_id,
+ Waveforms.get_associated_waveform_id
+ (
+ IDs.get_id_from_xml_id
+ (
+ XMLManager.get_attribute(actual_waveform, "ref"),
+ null
+ )
+ ),
+ IDs.get_id_from_xml_id
+ (
+ XMLManager.get_attribute(real_ports.item(i), "id"),
+ "port"
+ )
+ );
+ }
+ else
+ {
+ final XPathExpression xpe_find_true_port;
+ final Node true_port;
+
+ xpe_find_true_port =
+ XMLManager.compile_or_die
+ (
+ "./port_chain/el[@identifier=\""
+ + XMLManager.get_attribute(formal_name, "identifier")
+ + "\"]"
+ );
+
+ true_port =
+ (Node) xpe_find_true_port.evaluate
+ (
+ linked_entity,
+ XPathConstants.NODE
+ );
+
+ Predicates.add_entry
+ (
+ "port_maps",
+ local_id,
+ Waveforms.get_associated_waveform_id
+ (
+ IDs.get_id_from_xml_id
+ (
+ XMLManager.get_attribute(actual_waveform, "ref"),
+ null
+ )
+ ),
+ IDs.get_id_from_xml_id
+ (
+ XMLManager.get_attribute(true_port, "id"),
+ "port"
+ )
+ );
+ }
+ }
+ }
+
+ private void handle_predicate_generic_maps
+ (
+ final IDs local_id,
+ final Node linked_entity
+ )
+ throws XPathExpressionException
+ {
+ /* TODO */
+ }
+}