/*
* 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
case class SetEventBus(bus: EventBus[StructureChange])
case class SetIsCommandKeyword(is_command_keyword: String => Boolean)
}
class Prover(isabelle_system: IsabelleSystem, logic: String) extends Actor
{
/* prover process */
private val process =
{
val results = new EventBus[IsabelleProcess.Result] + handle_result
results.logger = Log.log(Log.ERROR, null, _)
new IsabelleProcess(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]
private var document_versions = List(ProofDocument.empty)
private val document_id0 = ProofDocument.empty.id
def document = document_versions.head
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 */
var _completions = new TreeSet[String]
def completions = _completions
/* // TODO: ask Makarius to make Interpretation.symbols public (here: read-only as 'symbol_map')
val map = isabelle.jedit.Isabelle.symbols.symbol_map
for (xsymb <- map.keys) {
_completions += xsymb
if (map(xsymb).get("abbrev").isDefined) _completions += map(xsymb)("abbrev")
}
*/
decl_info += (k_v => _completions += k_v._1)
/* event handling */
val activated = new EventBus[Unit]
val output_info = new EventBus[String]
var change_receiver = null: Actor
private def handle_result(result: IsabelleProcess.Result)
{
def command_change(c: Command) = this ! c
val (running, command) =
result.props.find(p => p._1 == Markup.ID) match {
case None => (false, null)
case Some((_, id)) =>
if (commands.contains(id)) (false, commands(id))
else if (states.contains(id)) (true, states(id))
else (false, null)
}
if (result.kind == IsabelleProcess.Kind.STDOUT || result.kind == IsabelleProcess.Kind.STDIN)
output_info.event(result.toString)
else if (result.kind == IsabelleProcess.Kind.WRITELN && !initialized) { // FIXME !?
initialized = true
Swing.now { this ! ProverEvents.Activate }
}
else {
result.kind match {
case IsabelleProcess.Kind.WRITELN | IsabelleProcess.Kind.PRIORITY
| IsabelleProcess.Kind.WARNING | IsabelleProcess.Kind.ERROR =>
if (command != null) {
if (result.kind == IsabelleProcess.Kind.ERROR)
command.status = Command.Status.FAILED
command.add_result(running, process.parse_message(result))
command_change(command)
} else {
output_info.event(result.toString)
}
case IsabelleProcess.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
// document edits
case XML.Elem(Markup.EDITS, (Markup.ID, doc_id) :: _, edits)
if document_versions.exists(dv => doc_id == dv.id) =>
output_info.event(result.toString)
for {
XML.Elem(Markup.EDIT, (Markup.ID, cmd_id) :: (Markup.STATE, state_id) :: _, _)
<- edits
} {
if (commands.contains(cmd_id)) {
val cmd = commands(cmd_id)
if (cmd.state_id != null) states -= cmd.state_id
states(state_id) = cmd
cmd.state_id = state_id
cmd.status = Command.Status.UNPROCESSED
command_change(cmd)
}
}
// command status
case XML.Elem(Markup.UNPROCESSED, _, _)
if command != null =>
output_info.event(result.toString)
command.status = Command.Status.UNPROCESSED
command_change(command)
case XML.Elem(Markup.FINISHED, _, _)
if command != null =>
output_info.event(result.toString)
command.status = Command.Status.FINISHED
command_change(command)
case XML.Elem(Markup.FAILED, _, _)
if command != null =>
output_info.event(result.toString)
command.status = Command.Status.FAILED
command_change(command)
// other markup
case XML.Elem(kind,
(Markup.OFFSET, offset) :: (Markup.END_OFFSET, end_offset) ::
(Markup.ID, markup_id) :: _, _) =>
val begin = offset.toInt - 1
val end = end_offset.toInt - 1
val cmd = // FIXME proper command version!? running!?
// outer syntax: no id in props
if (command == null) commands.getOrElse(markup_id, null)
// inner syntax: id from props
else command
if (cmd != null) {
cmd.root_node.insert(cmd.node_from(kind, begin, end))
command_change(cmd)
}
case _ =>
//}}}
}
}
case _ =>
}
//}}}
case _ =>
}
}
}
def act() {
import ProverEvents._
loop {
react {
case Activate => {
val old = document
val (doc, structure_change) = old.activate
document_versions ::= doc
edit_document(old.id, doc.id, structure_change)
}
case SetIsCommandKeyword(f) => {
val old = document
val doc = old.set_command_keyword(f)
document_versions ::= doc
edit_document(old.id, doc.id, StructureChange(None, Nil, Nil))
}
case change: Text.Change => {
val old = document
val (doc, structure_change) = old.text_changed(change)
document_versions ::= doc
edit_document(old.id, doc.id, structure_change)
}
case command: Command => {
//state of command has changed
change_receiver ! command
}
}
}
}
def set_document(change_receiver: Actor, path: String) {
this.change_receiver = change_receiver
this ! ProverEvents.SetIsCommandKeyword(command_decls.contains)
process.ML("()") // FIXME force initial writeln
process.begin_document(document_id0, path)
}
private def edit_document(old_id: String, document_id: String, changes: StructureChange) = Swing.now
{
val removes =
for (cmd <- changes.removed_commands) yield {
commands -= cmd.id
if (cmd.state_id != null) states -= cmd.state_id
(document.commands.prev(cmd).map(_.id).getOrElse(document_id0)) -> None
}
val inserts =
for (cmd <- changes.added_commands) yield {
commands += (cmd.id -> cmd)
process.define_command(cmd.id, isabelle_system.symbols.encode(cmd.content))
(document.commands.prev(cmd).map(_.id).getOrElse(document_id0)) -> Some(cmd.id)
}
process.edit_document(old_id, document_id, removes.reverse ++ inserts)
}
}