author | wenzelm |
Fri, 02 May 2014 13:52:45 +0200 | |
changeset 56823 | 37be55461dbe |
parent 56801 | 8dd9df88f647 |
child 59136 | c2b23cb8a677 |
permissions | -rw-r--r-- |
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/* Title: Pure/Thy/thy_info.scala |
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Author: Makarius |
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Theory and file dependencies. |
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*/ |
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package isabelle |
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class Thy_Info(resources: Resources) |
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{ |
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/* messages */ |
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private def show_path(names: List[Document.Node.Name]): String = |
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names.map(name => quote(name.theory)).mkString(" via ") |
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private def cycle_msg(names: List[Document.Node.Name]): String = |
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"Cyclic dependency of " + show_path(names) |
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private def required_by(initiators: List[Document.Node.Name]): String = |
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if (initiators.isEmpty) "" |
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else "\n(required by " + show_path(initiators.reverse) + ")" |
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/* dependencies */ |
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sealed case class Dep( |
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name: Document.Node.Name, |
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header: Document.Node.Header) |
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{ |
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def loaded_files(syntax: Prover.Syntax): List[String] = |
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{ |
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val string = resources.with_thy_reader(name, reader => Symbol.decode(reader.source.toString)) |
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resources.loaded_files(syntax, string) |
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} |
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} |
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object Dependencies |
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{ |
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val empty = new Dependencies(Nil, Nil, Multi_Map.empty, Multi_Map.empty) |
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} |
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final class Dependencies private( |
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rev_deps: List[Dep], |
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val keywords: Thy_Header.Keywords, |
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val seen_names: Multi_Map[String, Document.Node.Name], |
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val seen_positions: Multi_Map[String, Position.T]) |
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{ |
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def :: (dep: Dep): Dependencies = |
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new Dependencies(dep :: rev_deps, dep.header.keywords ::: keywords, |
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seen_names, seen_positions) |
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def + (thy: (Document.Node.Name, Position.T)): Dependencies = |
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{ |
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val (name, pos) = thy |
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new Dependencies(rev_deps, keywords, |
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seen_names + (name.theory -> name), |
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seen_positions + (name.theory -> pos)) |
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} |
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def deps: List[Dep] = rev_deps.reverse |
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||
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def errors: List[String] = |
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{ |
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val header_errors = deps.flatMap(dep => dep.header.errors) |
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val import_errors = |
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(for { |
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(theory, names) <- seen_names.iterator_list |
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if !resources.loaded_theories(theory) |
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if names.length > 1 |
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} yield |
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"Incoherent imports for theory " + quote(theory) + ":\n" + |
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cat_lines(names.flatMap(name => |
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seen_positions.get_list(theory).map(pos => |
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" " + quote(name.node) + Position.here(pos)))) |
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).toList |
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header_errors ::: import_errors |
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} |
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lazy val syntax: Prover.Syntax = resources.base_syntax.add_keywords(keywords) |
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def loaded_theories: Set[String] = |
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(resources.loaded_theories /: rev_deps) { case (loaded, dep) => loaded + dep.name.theory } |
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def loaded_files: List[Path] = |
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{ |
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val dep_files = |
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rev_deps.par.map(dep => |
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Exn.capture { |
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dep.loaded_files(syntax).map(a => Path.explode(dep.name.master_dir) + Path.explode(a)) |
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}).toList |
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((Nil: List[Path]) /: dep_files) { |
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case (acc_files, files) => Exn.release(files) ::: acc_files |
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} |
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} |
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} |
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private def require_thys(session: String, initiators: List[Document.Node.Name], |
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required: Dependencies, thys: List[(Document.Node.Name, Position.T)]): Dependencies = |
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(required /: thys)(require_thy(session, initiators, _, _)) |
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private def require_thy(session: String, initiators: List[Document.Node.Name], |
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required: Dependencies, thy: (Document.Node.Name, Position.T)): Dependencies = |
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{ |
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val (name, require_pos) = thy |
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val theory = name.theory |
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def message: String = |
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"The error(s) above occurred for theory " + quote(theory) + |
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required_by(initiators) + Position.here(require_pos) |
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val required1 = required + thy |
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if (required.seen_names.isDefinedAt(theory) || resources.loaded_theories(theory)) |
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required1 |
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else { |
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try { |
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if (initiators.contains(name)) error(cycle_msg(initiators)) |
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val header = |
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try { resources.check_thy(session, name).cat_errors(message) } |
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catch { case ERROR(msg) => cat_error(msg, message) } |
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val imports = header.imports.map((_, Position.File(name.node))) |
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Dep(name, header) :: require_thys(session, name :: initiators, required1, imports) |
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} |
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catch { |
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case e: Throwable => |
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Dep(name, Document.Node.bad_header(Exn.message(e))) :: required1 |
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} |
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} |
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} |
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def dependencies(session: String, thys: List[(Document.Node.Name, Position.T)]): Dependencies = |
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require_thys(session, Nil, Dependencies.empty, thys) |
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} |