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/* Title: Pure/PIDE/resources.scala
Author: Makarius
Resources for theories and auxiliary files.
*/
package isabelle
import scala.util.parsing.input.Reader
import java.io.{File => JFile}
object Resources
{
def empty: Resources =
new Resources(Sessions.Structure.empty, Sessions.Structure.empty.bootstrap)
}
class Resources(
val sessions_structure: Sessions.Structure,
val session_base: Sessions.Base,
val log: Logger = No_Logger,
command_timings: List[Properties.T] = Nil)
{
resources =>
/* init session */
def init_session_yxml: String =
{
import XML.Encode._
YXML.string_of_body(
pair(list(pair(string, properties)),
pair(list(pair(string, string)),
pair(list(pair(string, string)),
pair(list(pair(string, list(string))),
pair(list(properties),
pair(list(pair(string, properties)),
pair(list(pair(string, string)), list(string))))))))(
(sessions_structure.session_positions,
(sessions_structure.dest_session_directories,
(sessions_structure.session_chapters,
(sessions_structure.bibtex_entries,
(command_timings,
(Scala.functions.map(fun => (fun.name, fun.position)),
(session_base.global_theories.toList,
session_base.loaded_theories.keys)))))))))
}
/* file formats */
def make_theory_name(name: Document.Node.Name): Option[Document.Node.Name] =
File_Format.registry.get(name).flatMap(_.make_theory_name(resources, name))
def make_theory_content(thy_name: Document.Node.Name): Option[String] =
File_Format.registry.get_theory(thy_name).flatMap(_.make_theory_content(resources, thy_name))
def is_hidden(name: Document.Node.Name): Boolean =
!name.is_theory || name.theory == Sessions.root_name || File_Format.registry.is_theory(name)
def html_document(snapshot: Document.Snapshot): Option[Presentation.HTML_Document] =
File_Format.registry.get(snapshot.node_name).flatMap(_.html_document(snapshot))
/* file-system operations */
def append(dir: String, source_path: Path): String =
(Path.explode(dir) + source_path).expand.implode
def append(node_name: Document.Node.Name, source_path: Path): String =
append(node_name.master_dir, source_path)
def file_node(file: Path, dir: String = "", theory: String = ""): Document.Node.Name =
{
val node = append(dir, file)
val master_dir = append(dir, file.dir)
Document.Node.Name(node, master_dir, theory)
}
def loaded_theory_node(theory: String): Document.Node.Name =
Document.Node.Name(theory, "", theory)
/* source files of Isabelle/ML bootstrap */
def source_file(raw_name: String): Option[String] =
{
if (Path.is_wellformed(raw_name)) {
if (Path.is_valid(raw_name)) {
def check(p: Path): Option[Path] = if (p.is_file) Some(p) else None
val path = Path.explode(raw_name)
val path1 =
if (path.is_absolute || path.is_current) check(path)
else {
check(Path.explode("~~/src/Pure") + path) orElse
(if (Isabelle_System.getenv("ML_SOURCES") == "") None
else check(Path.explode("$ML_SOURCES") + path))
}
Some(File.platform_path(path1 getOrElse path))
}
else None
}
else Some(raw_name)
}
/* theory files */
def load_commands(syntax: Outer_Syntax, name: Document.Node.Name)
: () => List[Command_Span.Span] =
{
val (is_utf8, raw_text) =
with_thy_reader(name, reader => (Scan.reader_is_utf8(reader), reader.source.toString))
() =>
{
if (syntax.has_load_commands(raw_text)) {
val text = Symbol.decode(Scan.reader_decode_utf8(is_utf8, raw_text))
syntax.parse_spans(text).filter(_.is_load_command(syntax))
}
else Nil
}
}
def loaded_files(syntax: Outer_Syntax, name: Document.Node.Name, spans: List[Command_Span.Span])
: List[Path] =
{
val dir = name.master_dir_path
for { span <- spans; file <- span.loaded_files(syntax).files }
yield (dir + Path.explode(file)).expand
}
def pure_files(syntax: Outer_Syntax): List[Path] =
{
val pure_dir = Path.explode("~~/src/Pure")
for {
(name, theory) <- Thy_Header.ml_roots
path = (pure_dir + Path.explode(name)).expand
node_name = Document.Node.Name(path.implode, path.dir.implode, theory)
file <- loaded_files(syntax, node_name, load_commands(syntax, node_name)())
} yield file
}
def theory_name(qualifier: String, theory: String): String =
if (Long_Name.is_qualified(theory) || session_base.global_theories.isDefinedAt(theory))
theory
else Long_Name.qualify(qualifier, theory)
def find_theory_node(theory: String): Option[Document.Node.Name] =
{
val thy_file = Path.basic(Long_Name.base_name(theory)).thy
val session = session_base.theory_qualifier(theory)
val dirs =
sessions_structure.get(session) match {
case Some(info) => info.dirs
case None => Nil
}
dirs.collectFirst({
case dir if (dir + thy_file).is_file => file_node(dir + thy_file, theory = theory) })
}
def import_name(qualifier: String, dir: String, s: String): Document.Node.Name =
{
val theory = theory_name(qualifier, Thy_Header.import_name(s))
def theory_node = file_node(Path.explode(s).thy, dir = dir, theory = theory)
if (!Thy_Header.is_base_name(s)) theory_node
else if (session_base.loaded_theory(theory)) loaded_theory_node(theory)
else {
find_theory_node(theory) match {
case Some(node_name) => node_name
case None => if (Long_Name.is_qualified(s)) loaded_theory_node(theory) else theory_node
}
}
}
def import_name(name: Document.Node.Name, s: String): Document.Node.Name =
import_name(session_base.theory_qualifier(name), name.master_dir, s)
def import_name(info: Sessions.Info, s: String): Document.Node.Name =
import_name(info.name, info.dir.implode, s)
def find_theory(file: JFile): Option[Document.Node.Name] =
{
for {
qualifier <- session_base.session_directories.get(File.canonical(file).getParentFile)
theory_base <- proper_string(Thy_Header.theory_name(file.getName))
theory = theory_name(qualifier, theory_base)
theory_node <- find_theory_node(theory)
if File.eq(theory_node.path.file, file)
} yield theory_node
}
def complete_import_name(context_name: Document.Node.Name, s: String): List[String] =
{
val context_session = session_base.theory_qualifier(context_name)
val context_dir =
try { Some(context_name.master_dir_path) }
catch { case ERROR(_) => None }
(for {
(session, (info, _)) <- sessions_structure.imports_graph.iterator
dir <- (if (session == context_session) context_dir.toList else info.dirs).iterator
theory <- Thy_Header.try_read_dir(dir).iterator
if Completion.completed(s)(theory)
} yield {
if (session == context_session || session_base.global_theories.isDefinedAt(theory)) theory
else Long_Name.qualify(session, theory)
}).toList.sorted
}
def with_thy_reader[A](name: Document.Node.Name, f: Reader[Char] => A): A =
{
val path = name.path
if (path.is_file) using(Scan.byte_reader(path.file))(f)
else if (name.node == name.theory)
error("Cannot load theory " + quote(name.theory))
else error ("Cannot load theory file " + path)
}
def check_thy(node_name: Document.Node.Name, reader: Reader[Char],
command: Boolean = true, strict: Boolean = true): Document.Node.Header =
{
if (node_name.is_theory && reader.source.length > 0) {
try {
val header = Thy_Header.read(node_name, reader, command = command, strict = strict)
val imports =
header.imports.map({ case (s, pos) =>
val name = import_name(node_name, s)
if (Sessions.exclude_theory(name.theory_base_name))
error("Bad theory name " + quote(name.theory_base_name) + Position.here(pos))
(name, pos)
})
Document.Node.Header(imports, header.keywords, header.abbrevs)
}
catch { case exn: Throwable => Document.Node.bad_header(Exn.message(exn)) }
}
else Document.Node.no_header
}
/* special header */
def special_header(name: Document.Node.Name): Option[Document.Node.Header] =
{
val imports =
if (name.theory == Sessions.root_name) List(import_name(name, Sessions.theory_name))
else if (Thy_Header.is_ml_root(name.theory)) List(import_name(name, Thy_Header.ML_BOOTSTRAP))
else if (Thy_Header.is_bootstrap(name.theory)) List(import_name(name, Thy_Header.PURE))
else Nil
if (imports.isEmpty) None
else Some(Document.Node.Header(imports.map((_, Position.none))))
}
/* blobs */
def undefined_blobs(nodes: Document.Nodes): List[Document.Node.Name] =
(for {
(node_name, node) <- nodes.iterator
if !session_base.loaded_theory(node_name)
cmd <- node.load_commands.iterator
name <- cmd.blobs_undefined.iterator
} yield name).toList
/* document changes */
def parse_change(
reparse_limit: Int,
previous: Document.Version,
doc_blobs: Document.Blobs,
edits: List[Document.Edit_Text],
consolidate: List[Document.Node.Name]): Session.Change =
Thy_Syntax.parse_change(resources, reparse_limit, previous, doc_blobs, edits, consolidate)
def commit(change: Session.Change) { }
/* theory and file dependencies */
def dependencies(
thys: List[(Document.Node.Name, Position.T)],
progress: Progress = new Progress): Dependencies[Unit] =
Dependencies.empty[Unit].require_thys((), thys, progress = progress)
def session_dependencies(info: Sessions.Info, progress: Progress = new Progress)
: Dependencies[Options] =
{
(Dependencies.empty[Options] /: info.theories)({ case (dependencies, (options, thys)) =>
dependencies.require_thys(options,
for { (thy, pos) <- thys } yield (import_name(info, thy), pos),
progress = progress)
})
}
object Dependencies
{
def empty[A]: Dependencies[A] = new Dependencies[A](Nil, Map.empty)
private def show_path(names: List[Document.Node.Name]): String =
names.map(name => quote(name.theory)).mkString(" via ")
private def cycle_msg(names: List[Document.Node.Name]): String =
"Cyclic dependency of " + show_path(names)
private def required_by(initiators: List[Document.Node.Name]): String =
if (initiators.isEmpty) ""
else "\n(required by " + show_path(initiators.reverse) + ")"
}
final class Dependencies[A] private(
rev_entries: List[Document.Node.Entry],
seen: Map[Document.Node.Name, A])
{
private def cons(entry: Document.Node.Entry): Dependencies[A] =
new Dependencies[A](entry :: rev_entries, seen)
def require_thy(adjunct: A,
thy: (Document.Node.Name, Position.T),
initiators: List[Document.Node.Name] = Nil,
progress: Progress = new Progress): Dependencies[A] =
{
val (name, pos) = thy
def message: String =
"The error(s) above occurred for theory " + quote(name.theory) +
Dependencies.required_by(initiators) + Position.here(pos)
if (seen.isDefinedAt(name)) this
else {
val dependencies1 = new Dependencies[A](rev_entries, seen + (name -> adjunct))
if (session_base.loaded_theory(name)) dependencies1
else {
try {
if (initiators.contains(name)) error(Dependencies.cycle_msg(initiators))
progress.expose_interrupt()
val header =
try {
with_thy_reader(name, check_thy(name, _, command = false)).cat_errors(message)
}
catch { case ERROR(msg) => cat_error(msg, message) }
val entry = Document.Node.Entry(name, header)
dependencies1.require_thys(adjunct, header.imports_pos,
initiators = name :: initiators, progress = progress).cons(entry)
}
catch {
case e: Throwable =>
dependencies1.cons(Document.Node.Entry(name, Document.Node.bad_header(Exn.message(e))))
}
}
}
}
def require_thys(adjunct: A,
thys: List[(Document.Node.Name, Position.T)],
progress: Progress = new Progress,
initiators: List[Document.Node.Name] = Nil): Dependencies[A] =
(this /: thys)(_.require_thy(adjunct, _, progress = progress, initiators = initiators))
def entries: List[Document.Node.Entry] = rev_entries.reverse
def theories: List[Document.Node.Name] = entries.map(_.name)
def theories_adjunct: List[(Document.Node.Name, A)] = theories.map(name => (name, seen(name)))
def errors: List[String] = entries.flatMap(_.header.errors)
def check_errors: Dependencies[A] =
errors match {
case Nil => this
case errs => error(cat_lines(errs))
}
lazy val theory_graph: Document.Node.Name.Graph[Unit] =
{
val regular = theories.toSet
val irregular =
(for {
entry <- entries.iterator
imp <- entry.header.imports
if !regular(imp)
} yield imp).toSet
Document.Node.Name.make_graph(
irregular.toList.map(name => ((name, ()), Nil)) :::
entries.map(entry => ((entry.name, ()), entry.header.imports)))
}
lazy val loaded_theories: Graph[String, Outer_Syntax] =
(session_base.loaded_theories /: entries)({ case (graph, entry) =>
val name = entry.name.theory
val imports = entry.header.imports.map(_.theory)
val graph1 = (graph /: (name :: imports))(_.default_node(_, Outer_Syntax.empty))
val graph2 = (graph1 /: imports)(_.add_edge(_, name))
val syntax0 = if (name == Thy_Header.PURE) List(Thy_Header.bootstrap_syntax) else Nil
val syntax1 = (name :: graph2.imm_preds(name).toList).map(graph2.get_node)
val syntax = Outer_Syntax.merge(syntax0 ::: syntax1) + entry.header
graph2.map_node(name, _ => syntax)
})
def get_syntax(name: Document.Node.Name): Outer_Syntax =
loaded_theories.get_node(name.theory)
def load_commands: List[(Document.Node.Name, List[Command_Span.Span])] =
theories.zip(
Par_List.map((e: () => List[Command_Span.Span]) => e(),
theories.map(name => resources.load_commands(get_syntax(name), name))))
.filter(p => p._2.nonEmpty)
def loaded_files(name: Document.Node.Name, spans: List[Command_Span.Span])
: (String, List[Path]) =
{
val theory = name.theory
val syntax = get_syntax(name)
val files1 = resources.loaded_files(syntax, name, spans)
val files2 = if (theory == Thy_Header.PURE) pure_files(syntax) else Nil
(theory, files1 ::: files2)
}
def loaded_files: List[Path] =
for {
(name, spans) <- load_commands
file <- loaded_files(name, spans)._2
} yield file
def imported_files: List[Path] =
{
val base_theories =
loaded_theories.all_preds(theories.map(_.theory)).
filter(session_base.loaded_theories.defined)
base_theories.map(theory => session_base.known_theories(theory).name.path) :::
base_theories.flatMap(session_base.known_loaded_files.withDefaultValue(Nil))
}
lazy val overall_syntax: Outer_Syntax =
Outer_Syntax.merge(loaded_theories.maximals.map(loaded_theories.get_node))
override def toString: String = entries.toString
}
}
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