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/* Title: Pure/Thy/export_theory.scala
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Author: Makarius
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Export foundational theory content.
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*/
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package isabelle
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object Export_Theory
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{
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/** session content **/
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sealed case class Session(name: String, theory_graph: Graph[String, Theory])
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{
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override def toString: String = name
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def theory(theory_name: String): Theory =
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if (theory_graph.defined(theory_name)) theory_graph.get_node(theory_name)
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else error("Bad theory " + quote(theory_name))
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def theories: List[Theory] =
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theory_graph.topological_order.map(theory_graph.get_node(_))
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}
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def read_session(session_name: String,
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system_mode: Boolean = false,
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types: Boolean = true,
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consts: Boolean = true): Session =
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{
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val store = Sessions.store(system_mode)
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val thys =
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using(SQLite.open_database(store.the_database(session_name)))(db =>
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{
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db.transaction {
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Export.read_theory_names(db, session_name).iterator.map(_._1).toSet.iterator.
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map((theory_name: String) =>
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read_theory(db, session_name, theory_name, types = types, consts = consts)).toList
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}
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})
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val graph0 =
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(Graph.string[Theory] /: thys) { case (g, thy) => g.new_node(thy.name, thy) }
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val graph1 =
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(graph0 /: thys) { case (g0, thy) =>
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(g0 /: thy.parents) { case (g1, parent) =>
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g1.default_node(parent, empty_theory(parent)).add_edge_acyclic(parent, thy.name) } }
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Session(session_name, graph1)
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}
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/** theory content **/
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sealed case class Theory(
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name: String, parents: List[String], types: List[Type], consts: List[Const])
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{
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override def toString: String = name
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}
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def empty_theory(name: String): Theory = Theory(name, Nil, Nil, Nil)
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def read_theory(db: SQL.Database, session_name: String, theory_name: String,
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types: Boolean = true,
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consts: Boolean = true): Theory =
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{
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val parents =
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Export.read_entry(db, session_name, theory_name, "theory/parents") match {
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case Some(entry) =>
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import XML.Decode._
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list(string)(entry.uncompressed_yxml())
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case None =>
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error("Missing theory export in session " + quote(session_name) + ": " +
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quote(theory_name))
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}
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Theory(theory_name, parents,
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if (types) read_types(db, session_name, theory_name) else Nil,
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if (consts) read_consts(db, session_name, theory_name) else Nil)
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}
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/* entities */
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sealed case class Entity(name: String, serial: Long, pos: Position.T)
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{
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override def toString: String = name
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}
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def decode_entity(tree: XML.Tree): (Entity, XML.Body) =
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{
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def err(): Nothing = throw new XML.XML_Body(List(tree))
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tree match {
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case XML.Elem(Markup(Markup.ENTITY, props), body) =>
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val name = Markup.Name.unapply(props) getOrElse err()
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val serial = Markup.Serial.unapply(props) getOrElse err()
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val pos = props.filter({ case (a, _) => Markup.POSITION_PROPERTIES(a) })
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(Entity(name, serial, pos), body)
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case _ => err()
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}
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}
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def read_entities[A](db: SQL.Database, session_name: String, theory_name: String,
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export_name: String, decode: XML.Tree => A): List[A] =
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{
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Export.read_entry(db, session_name, theory_name, "theory/" + export_name) match {
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case Some(entry) => entry.uncompressed_yxml().map(decode(_))
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case None => Nil
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}
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}
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/* types */
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sealed case class Type(entity: Entity, args: List[String], abbrev: Option[Term.Typ])
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def read_types(db: SQL.Database, session_name: String, theory_name: String): List[Type] =
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read_entities(db, session_name, theory_name, "types",
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(tree: XML.Tree) =>
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{
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val (entity, body) = decode_entity(tree)
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val (args, abbrev) =
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{
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import XML.Decode._
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pair(list(string), option(Term_XML.Decode.typ))(body)
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}
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Type(entity, args, abbrev)
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})
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/* consts */
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sealed case class Const(
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entity: Entity, typargs: List[String], typ: Term.Typ, abbrev: Option[Term.Term])
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def read_consts(db: SQL.Database, session_name: String, theory_name: String): List[Const] =
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read_entities(db, session_name, theory_name, "consts",
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(tree: XML.Tree) =>
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{
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val (entity, body) = decode_entity(tree)
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val (args, typ, abbrev) =
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{
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import XML.Decode._
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triple(list(string), Term_XML.Decode.typ, option(Term_XML.Decode.term))(body)
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}
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Const(entity, args, typ, abbrev)
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})
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}
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