/*
* Higher-level prover communication: interactive document model
*
* @author Johannes Hölzl, TU Munich
* @author Fabian Immler, TU Munich
* @author Makarius
*/
package isabelle.prover
import scala.collection.mutable
import scala.collection.immutable.{TreeSet}
import scala.actors.Actor
import scala.actors.Actor._
import org.gjt.sp.util.Log
import isabelle.jedit.Isabelle
import isabelle.proofdocument.{StructureChange, ProofDocument, Text, Token}
import isabelle.IsarDocument
object ProverEvents {
case class Activate
}
class Prover(isabelle_system: Isabelle_System, logic: String) extends Actor
{
/* prover process */
private val process =
{
val results = new EventBus[Isabelle_Process.Result] + handle_result
results.logger = Log.log(Log.ERROR, null, _)
new Isabelle_Process(isabelle_system, results, "-m", "xsymbols", logic) with IsarDocument
}
def stop() { process.kill }
/* document state information */
private val states = new mutable.HashMap[IsarDocument.State_ID, Command] with
mutable.SynchronizedMap[IsarDocument.State_ID, Command]
private val commands = new mutable.HashMap[IsarDocument.Command_ID, Command] with
mutable.SynchronizedMap[IsarDocument.Command_ID, Command]
val document_0 =
ProofDocument.empty.set_command_keyword(command_decls.contains)
private var document_versions = List(document_0)
def command(id: IsarDocument.Command_ID): Option[Command] = commands.get(id)
def document(id: IsarDocument.Document_ID) = document_versions.find(_.id == id)
private var initialized = false
/* outer syntax keywords */
val decl_info = new EventBus[(String, String)]
private val keyword_decls =
new mutable.HashSet[String] with mutable.SynchronizedSet[String] {
override def +=(name: String) = {
decl_info.event(name, OuterKeyword.MINOR)
super.+=(name)
}
}
private val command_decls =
new mutable.HashMap[String, String] with mutable.SynchronizedMap[String, String] {
override def +=(entry: (String, String)) = {
decl_info.event(entry)
super.+=(entry)
}
}
/* completions */
private var _completion = Isabelle.completion
def completion = _completion
decl_info += (p => _completion += p._1)
/* event handling */
val output_info = new EventBus[String]
var change_receiver: Actor = null
private def handle_result(result: Isabelle_Process.Result)
{
def command_change(c: Command) = change_receiver ! c
val (state, command) =
result.props.find(p => p._1 == Markup.ID) match {
case None => (null, null)
case Some((_, id)) =>
if (commands.contains(id)) (null, commands(id))
else if (states.contains(id)) (id, states(id))
else (null, null)
}
if (result.kind == Isabelle_Process.Kind.STDOUT ||
result.kind == Isabelle_Process.Kind.STDIN)
output_info.event(result.toString)
else {
result.kind match {
case Isabelle_Process.Kind.WRITELN
| Isabelle_Process.Kind.PRIORITY
| Isabelle_Process.Kind.WARNING
| Isabelle_Process.Kind.ERROR =>
if (command != null) {
if (result.kind == Isabelle_Process.Kind.ERROR)
command.set_status(state, Command.Status.FAILED)
command.add_result(state, process.parse_message(result))
command_change(command)
} else {
output_info.event(result.toString)
}
case Isabelle_Process.Kind.STATUS =>
//{{{ handle all kinds of status messages here
process.parse_message(result) match {
case XML.Elem(Markup.MESSAGE, _, elems) =>
for (elem <- elems) {
elem match {
//{{{
// command and keyword declarations
case XML.Elem(Markup.COMMAND_DECL,
(Markup.NAME, name) :: (Markup.KIND, kind) :: _, _) =>
command_decls += (name -> kind)
case XML.Elem(Markup.KEYWORD_DECL, (Markup.NAME, name) :: _, _) =>
keyword_decls += name
// process ready (after initialization)
case XML.Elem(Markup.READY, _, _)
if !initialized =>
initialized = true
change_receiver ! ProverEvents.Activate
// document edits
case XML.Elem(Markup.EDITS, (Markup.ID, doc_id) :: _, edits)
if document_versions.exists(_.id == doc_id) =>
output_info.event(result.toString)
val doc = document_versions.find(_.id == doc_id).get
for {
XML.Elem(Markup.EDIT, (Markup.ID, cmd_id) :: (Markup.STATE, state_id) :: _, _)
<- edits
} {
if (commands.contains(cmd_id)) {
val cmd = commands(cmd_id)
states(state_id) = cmd
doc.states += (cmd -> state_id)
cmd.states += (state_id -> new Command_State(cmd))
command_change(cmd)
}
}
// command status
case XML.Elem(Markup.UNPROCESSED, _, _)
if command != null =>
output_info.event(result.toString)
command.set_status(state, Command.Status.UNPROCESSED)
command_change(command)
case XML.Elem(Markup.FINISHED, _, _)
if command != null =>
output_info.event(result.toString)
command.set_status(state, Command.Status.FINISHED)
command_change(command)
case XML.Elem(Markup.FAILED, _, _)
if command != null =>
output_info.event(result.toString)
command.set_status(state, Command.Status.FAILED)
command_change(command)
case XML.Elem(kind, attr, body)
if command != null =>
val (begin, end) = Position.offsets_of(attr)
if (begin.isDefined && end.isDefined) {
if (kind == Markup.ML_TYPING) {
val info = body.first.asInstanceOf[XML.Text].content
command.add_markup(state,
command.markup_node(begin.get - 1, end.get - 1, TypeInfo(info)))
} else if (kind == Markup.ML_REF) {
body match {
case List(XML.Elem(Markup.ML_DEF, attr, _)) =>
command.add_markup(state, command.markup_node(
begin.get - 1, end.get - 1,
RefInfo(
Position.file_of(attr),
Position.line_of(attr),
Position.id_of(attr),
Position.offset_of(attr))))
case _ =>
}
} else {
command.add_markup(state,
command.markup_node(begin.get - 1, end.get - 1, HighlightInfo(kind)))
}
}
command_change(command)
case XML.Elem(kind, attr, body)
if command == null =>
// TODO: This is mostly irrelevant information on removed commands, but it can
// also be outer-syntax-markup since there is no id in props (fix that?)
val (begin, end) = Position.offsets_of(attr)
val markup_id = Position.id_of(attr)
val outer = isabelle.jedit.DynamicTokenMarker.is_outer(kind)
if (outer && state == null && begin.isDefined && end.isDefined && markup_id.isDefined)
commands.get(markup_id.get).map (cmd => {
cmd.add_markup(state,
cmd.markup_node(begin.get - 1, end.get - 1, OuterInfo(kind)))
command_change(cmd)
})
case _ =>
//}}}
}
}
case _ =>
}
//}}}
case _ =>
}
}
}
def act() {
import ProverEvents._
loop {
react {
case change: Text.Change => {
val old = document(change.base.get.id).get
val (doc, structure_change) = old.text_changed(change)
document_versions ::= doc
edit_document(old, doc, structure_change)
}
case x => System.err.println("warning: ignored " + x)
}
}
}
def set_document(change_receiver: Actor, path: String) {
this.change_receiver = change_receiver
process.begin_document(document_0.id, path)
}
private def edit_document(old: ProofDocument, doc: ProofDocument, changes: StructureChange) = {
val removes =
for (cmd <- changes.removed_commands) yield {
commands -= cmd.id
changes.before_change.map(_.id).getOrElse(document_0.id) -> None
}
val inserts =
for (cmd <- changes.added_commands) yield {
commands += (cmd.id -> cmd)
process.define_command(cmd.id, isabelle_system.symbols.encode(cmd.content))
(doc.commands.prev(cmd).map(_.id).getOrElse(document_0.id)) -> Some(cmd.id)
}
process.edit_document(old.id, doc.id, removes.reverse ++ inserts)
}
}