explicit management of Session.Protocol_Handlers, with protocol state and functions;
more self-contained ML/Scala module Invoke_Scala;
/* Title: Pure/PIDE/protocol.scala
Author: Makarius
Protocol message formats for interactive proof documents.
*/
package isabelle
object Protocol
{
/* document editing */
object Assign
{
def unapply(text: String): Option[(Document.Version_ID, Document.Assign)] =
try {
import XML.Decode._
val body = YXML.parse_body(text)
Some(pair(long, list(pair(long, option(long))))(body))
}
catch {
case ERROR(_) => None
case _: XML.Error => None
}
}
object Removed
{
def unapply(text: String): Option[List[Document.Version_ID]] =
try {
import XML.Decode._
Some(list(long)(YXML.parse_body(text)))
}
catch {
case ERROR(_) => None
case _: XML.Error => None
}
}
/* command status */
object Status
{
val init = Status()
}
sealed case class Status(
private val touched: Boolean = false,
private val accepted: Boolean = false,
private val failed: Boolean = false,
forks: Int = 0,
runs: Int = 0)
{
def + (that: Status): Status =
Status(touched || that.touched, accepted || that.accepted, failed || that.failed,
forks + that.forks, runs + that.runs)
def is_unprocessed: Boolean = accepted && !failed && (!touched || (forks != 0 && runs == 0))
def is_running: Boolean = runs != 0
def is_finished: Boolean = !failed && touched && forks == 0 && runs == 0
def is_failed: Boolean = failed
}
val command_status_markup: Set[String] =
Set(Markup.ACCEPTED, Markup.FORKED, Markup.JOINED, Markup.RUNNING,
Markup.FINISHED, Markup.FAILED)
def command_status(status: Status, markup: Markup): Status =
markup match {
case Markup(Markup.ACCEPTED, _) => status.copy(accepted = true)
case Markup(Markup.FORKED, _) => status.copy(touched = true, forks = status.forks + 1)
case Markup(Markup.JOINED, _) => status.copy(forks = status.forks - 1)
case Markup(Markup.RUNNING, _) => status.copy(touched = true, runs = status.runs + 1)
case Markup(Markup.FINISHED, _) => status.copy(runs = status.runs - 1)
case Markup(Markup.FAILED, _) => status.copy(failed = true)
case _ => status
}
def command_status(markups: List[Markup]): Status =
(Status.init /: markups)(command_status(_, _))
/* command timing */
object Command_Timing
{
def unapply(props: Properties.T): Option[(Document.ID, isabelle.Timing)] =
props match {
case (Markup.FUNCTION, Markup.COMMAND_TIMING) :: args =>
(args, args) match {
case (Position.Id(id), Markup.Timing_Properties(timing)) => Some((id, timing))
case _ => None
}
case _ => None
}
}
/* node status */
sealed case class Node_Status(
unprocessed: Int, running: Int, finished: Int, warned: Int, failed: Int)
{
def total: Int = unprocessed + running + finished + warned + failed
}
def node_status(
state: Document.State, version: Document.Version, node: Document.Node): Node_Status =
{
var unprocessed = 0
var running = 0
var finished = 0
var warned = 0
var failed = 0
node.commands.foreach(command =>
{
val st = state.command_state(version, command)
val status = command_status(st.status)
if (status.is_running) running += 1
else if (status.is_finished) {
if (st.results.entries.exists(p => is_warning(p._2))) warned += 1
else finished += 1
}
else if (status.is_failed) failed += 1
else unprocessed += 1
})
Node_Status(unprocessed, running, finished, warned, failed)
}
/* node timing */
sealed case class Node_Timing(total: Double, commands: Map[Command, Double])
val empty_node_timing = Node_Timing(0.0, Map.empty)
def node_timing(
state: Document.State,
version: Document.Version,
node: Document.Node,
threshold: Double): Node_Timing =
{
var total = 0.0
var commands = Map.empty[Command, Double]
for {
command <- node.commands.iterator
st = state.command_state(version, command)
command_timing =
(0.0 /: st.status)({
case (timing, Markup.Timing(t)) => timing + t.elapsed.seconds
case (timing, _) => timing
})
} {
total += command_timing
if (command_timing >= threshold) commands += (command -> command_timing)
}
Node_Timing(total, commands)
}
/* result messages */
private val clean = Set(Markup.REPORT, Markup.NO_REPORT)
def clean_message(body: XML.Body): XML.Body =
body filter {
case XML.Wrapped_Elem(Markup(name, _), _, _) => !clean(name)
case XML.Elem(Markup(name, _), _) => !clean(name)
case _ => true
} map {
case XML.Wrapped_Elem(markup, body, ts) => XML.Wrapped_Elem(markup, body, clean_message(ts))
case XML.Elem(markup, ts) => XML.Elem(markup, clean_message(ts))
case t => t
}
def message_reports(props: Properties.T, body: XML.Body): List[XML.Elem] =
body flatMap {
case XML.Wrapped_Elem(Markup(Markup.REPORT, ps), body, ts) =>
List(XML.Wrapped_Elem(Markup(Markup.REPORT, props ::: ps), body, ts))
case XML.Elem(Markup(Markup.REPORT, ps), ts) =>
List(XML.Elem(Markup(Markup.REPORT, props ::: ps), ts))
case XML.Wrapped_Elem(_, _, ts) => message_reports(props, ts)
case XML.Elem(_, ts) => message_reports(props, ts)
case XML.Text(_) => Nil
}
/* specific messages */
def is_inlined(msg: XML.Tree): Boolean =
!(is_result(msg) || is_tracing(msg) || is_state(msg))
def is_result(msg: XML.Tree): Boolean =
msg match {
case XML.Elem(Markup(Markup.RESULT, _), _) => true
case _ => false
}
def is_tracing(msg: XML.Tree): Boolean =
msg match {
case XML.Elem(Markup(Markup.TRACING, _), _) => true
case XML.Elem(Markup(Markup.TRACING_MESSAGE, _), _) => true
case _ => false
}
def is_state(msg: XML.Tree): Boolean =
msg match {
case XML.Elem(Markup(Markup.WRITELN, _),
List(XML.Elem(Markup(Markup.STATE, _), _))) => true
case XML.Elem(Markup(Markup.WRITELN_MESSAGE, _),
List(XML.Elem(Markup(Markup.STATE, _), _))) => true
case _ => false
}
def is_warning(msg: XML.Tree): Boolean =
msg match {
case XML.Elem(Markup(Markup.WARNING, _), _) => true
case XML.Elem(Markup(Markup.WARNING_MESSAGE, _), _) => true
case _ => false
}
def is_error(msg: XML.Tree): Boolean =
msg match {
case XML.Elem(Markup(Markup.ERROR, _), _) => true
case XML.Elem(Markup(Markup.ERROR_MESSAGE, _), _) => true
case _ => false
}
/* dialogs */
object Dialog_Args
{
def unapply(props: Properties.T): Option[(Document.ID, Long, String)] =
(props, props, props) match {
case (Position.Id(id), Markup.Serial(serial), Markup.Result(result)) =>
Some((id, serial, result))
case _ => None
}
}
object Dialog
{
def unapply(tree: XML.Tree): Option[(Document.ID, Long, String)] =
tree match {
case XML.Elem(Markup(Markup.DIALOG, Dialog_Args(id, serial, result)), _) =>
Some((id, serial, result))
case _ => None
}
}
object Dialog_Result
{
def apply(id: Document.ID, serial: Long, result: String): XML.Elem =
{
val props = Position.Id(id) ::: Markup.Serial(serial)
XML.Elem(Markup(Markup.RESULT, props), List(XML.Text(result)))
}
def unapply(tree: XML.Tree): Option[String] =
tree match {
case XML.Elem(Markup(Markup.RESULT, _), List(XML.Text(result))) => Some(result)
case _ => None
}
}
/* reported positions */
private val include_pos = Set(Markup.BINDING, Markup.ENTITY, Markup.REPORT, Markup.POSITION)
def message_positions(command: Command, message: XML.Elem): Set[Text.Range] =
{
def elem_positions(raw_range: Text.Range, set: Set[Text.Range], body: XML.Body)
: Set[Text.Range] =
{
val range = command.decode(raw_range).restrict(command.range)
body.foldLeft(if (range.is_singularity) set else set + range)(positions)
}
def positions(set: Set[Text.Range], tree: XML.Tree): Set[Text.Range] =
tree match {
case XML.Wrapped_Elem(Markup(name, Position.Id_Range(id, range)), _, body)
if include_pos(name) && id == command.id => elem_positions(range, set, body)
case XML.Elem(Markup(name, Position.Id_Range(id, range)), body)
if include_pos(name) && id == command.id => elem_positions(range, set, body)
case XML.Wrapped_Elem(_, _, body) => body.foldLeft(set)(positions)
case XML.Elem(_, body) => body.foldLeft(set)(positions)
case _ => set
}
val set = positions(Set.empty, message)
if (set.isEmpty)
set ++ Position.Range.unapply(message.markup.properties).map(command.decode(_))
else set
}
}
trait Protocol extends Isabelle_Process
{
/* commands */
def define_command(command: Command): Unit =
input("Document.define_command",
Document.ID(command.id), encode(command.name), encode(command.source))
/* document versions */
def discontinue_execution() { input("Document.discontinue_execution") }
def cancel_execution() { input("Document.cancel_execution") }
def update(old_id: Document.Version_ID, new_id: Document.Version_ID,
edits: List[Document.Edit_Command])
{
val edits_yxml =
{ import XML.Encode._
def id: T[Command] = (cmd => long(cmd.id))
def encode_edit(name: Document.Node.Name)
: T[Document.Node.Edit[(Option[Command], Option[Command]), Command.Perspective]] =
variant(List(
{ case Document.Node.Clear() => (Nil, Nil) }, // FIXME unused !?
{ case Document.Node.Edits(a) => (Nil, list(pair(option(id), option(id)))(a)) },
{ case Document.Node.Deps(header) =>
val dir = Isabelle_System.posix_path(name.dir)
val imports = header.imports.map(_.node)
val keywords = header.keywords.map({ case (a, b, _) => (a, b) })
(Nil,
pair(Encode.string, pair(Encode.string, pair(list(Encode.string),
pair(list(pair(Encode.string,
option(pair(pair(Encode.string, list(Encode.string)), list(Encode.string))))),
list(Encode.string)))))(
(dir, (name.theory, (imports, (keywords, header.errors)))))) },
{ case Document.Node.Perspective(a) => (a.commands.map(c => long_atom(c.id)), Nil) }))
def encode_edits: T[List[Document.Edit_Command]] = list((node_edit: Document.Edit_Command) =>
{
val (name, edit) = node_edit
pair(string, encode_edit(name))(name.node, edit)
})
YXML.string_of_body(encode_edits(edits)) }
input("Document.update", Document.ID(old_id), Document.ID(new_id), edits_yxml)
}
def remove_versions(versions: List[Document.Version])
{
val versions_yxml =
{ import XML.Encode._
YXML.string_of_body(list(long)(versions.map(_.id))) }
input("Document.remove_versions", versions_yxml)
}
/* dialog via document content */
def dialog_result(serial: Long, result: String)
{
input("Document.dialog_result", Properties.Value.Long(serial), result)
}
}