author | wenzelm |
Sun, 12 Nov 2017 16:38:13 +0100 | |
changeset 67056 | e35ae3eeec93 |
parent 67053 | 57c37ee49c39 |
child 67059 | df7d728103f1 |
permissions | -rw-r--r-- |
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/* Title: Pure/PIDE/resources.scala |
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Author: Makarius |
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Resources for theories and auxiliary files. |
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*/ |
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package isabelle |
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import scala.annotation.tailrec |
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import scala.util.parsing.input.Reader |
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import java.io.{File => JFile} |
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class Resources( |
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val session_base: Sessions.Base, |
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val log: Logger = No_Logger) |
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{ |
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resources => |
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/* theory files */ |
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def thy_path(path: Path): Path = path.ext("thy") |
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def thy_node_name(qualifier: String, file: JFile, bootstrap: Boolean = false) |
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: Document.Node.Name = |
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{ |
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session_base.known.get_file(file, bootstrap) getOrElse { |
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val node = file.getPath |
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theory_name(qualifier, Thy_Header.theory_name(node)) match { |
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case (true, theory) => Document.Node.Name.loaded_theory(theory) |
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case (false, theory) => |
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val master_dir = if (theory == "") "" else file.getParent |
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Document.Node.Name(node, master_dir, theory) |
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} |
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} |
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} |
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/* file-system operations */ |
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def append(dir: String, source_path: Path): String = |
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(Path.explode(dir) + source_path).expand.implode |
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def append(node_name: Document.Node.Name, source_path: Path): String = |
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append(node_name.master_dir, source_path) |
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/* source files of Isabelle/ML bootstrap */ |
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def source_file(raw_name: String): Option[String] = |
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{ |
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if (Path.is_wellformed(raw_name)) { |
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if (Path.is_valid(raw_name)) { |
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def check(p: Path): Option[Path] = if (p.is_file) Some(p) else None |
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val path = Path.explode(raw_name) |
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val path1 = |
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if (path.is_absolute || path.is_current) check(path) |
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else { |
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check(Path.explode("~~/src/Pure") + path) orElse |
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(if (Isabelle_System.getenv("ML_SOURCES") == "") None |
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else check(Path.explode("$ML_SOURCES") + path)) |
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} |
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Some(File.platform_path(path1 getOrElse path)) |
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} |
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else None |
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} |
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else Some(raw_name) |
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} |
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/* theory files */ |
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def loaded_files(syntax: Outer_Syntax, name: Document.Node.Name): () => List[Path] = |
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{ |
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val (is_utf8, raw_text) = |
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with_thy_reader(name, reader => (Scan.reader_is_utf8(reader), reader.source.toString)) |
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() => { |
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if (syntax.load_commands_in(raw_text)) { |
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val text = Symbol.decode(Scan.reader_decode_utf8(is_utf8, raw_text)) |
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val spans = syntax.parse_spans(text) |
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val dir = Path.explode(name.master_dir) |
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spans.iterator.map(Command.span_files(syntax, _)._1).flatten. |
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map(a => (dir + Path.explode(a)).expand).toList |
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} |
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else Nil |
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} |
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} |
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def pure_files(syntax: Outer_Syntax, dir: Path): List[Path] = |
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{ |
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val roots = |
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for { (name, _) <- Thy_Header.ml_roots } |
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yield (dir + Path.explode(name)).expand |
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val files = |
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for { |
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(path, (_, theory)) <- roots zip Thy_Header.ml_roots |
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file <- loaded_files(syntax, Document.Node.Name(path.implode, path.dir.implode, theory))() |
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} yield file |
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roots ::: files |
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} |
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def theory_name(qualifier: String, theory: String): (Boolean, String) = |
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if (session_base.loaded_theory(theory)) (true, theory) |
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else { |
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val theory1 = |
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if (Long_Name.is_qualified(theory) || session_base.global_theories.isDefinedAt(theory)) |
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theory |
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else Long_Name.qualify(qualifier, theory) |
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(false, theory1) |
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} |
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def import_name(qualifier: String, dir: String, s: String): Document.Node.Name = |
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theory_name(qualifier, Thy_Header.import_name(s)) match { |
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case (true, theory) => Document.Node.Name.loaded_theory(theory) |
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case (false, theory) => |
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session_base.known_theory(theory) match { |
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case Some(node_name) => node_name |
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case None => |
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if (Thy_Header.is_base_name(s) && Long_Name.is_qualified(s)) |
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Document.Node.Name.loaded_theory(theory) |
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else { |
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val path = Path.explode(s) |
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val node = append(dir, thy_path(path)) |
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val master_dir = append(dir, path.dir) |
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Document.Node.Name(node, master_dir, theory) |
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} |
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} |
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} |
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def import_name(name: Document.Node.Name, s: String): Document.Node.Name = |
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import_name(session_base.theory_qualifier(name), name.master_dir, s) |
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def standard_import(base: Sessions.Base, qualifier: String, dir: String, s: String): String = |
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{ |
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val name = import_name(qualifier, dir, s) |
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val s1 = |
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if (session_base.loaded_theory(name)) name.theory |
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else { |
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(try { Some(name.path) } catch { case ERROR(_) => None }) match { |
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case None => s |
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case Some(path) => |
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session_base.known.get_file(path.file) match { |
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case Some(name1) if base.theory_qualifier(name1) != qualifier => |
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name1.theory |
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case Some(name1) if Thy_Header.is_base_name(s) => |
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name1.theory_base_name |
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case _ => s |
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} |
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} |
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} |
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val name2 = import_name(qualifier, dir, s1) |
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if (name.node == name2.node) s1 else s |
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} |
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def with_thy_reader[A](name: Document.Node.Name, f: Reader[Char] => A): A = |
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{ |
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val path = name.path |
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if (path.is_file) { |
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val reader = Scan.byte_reader(path.file) |
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try { f(reader) } finally { reader.close } |
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} |
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else if (name.node == name.theory) |
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error("Cannot load theory " + quote(name.theory)) |
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else error ("Cannot load theory file " + path) |
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} |
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def check_thy_reader(node_name: Document.Node.Name, reader: Reader[Char], |
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start: Token.Pos = Token.Pos.command, strict: Boolean = true): Document.Node.Header = |
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{ |
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if (node_name.is_theory && reader.source.length > 0) { |
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try { |
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val header = Thy_Header.read(reader, start, strict) |
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val base_name = node_name.theory_base_name |
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val (name, pos) = header.name |
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if (base_name != name) |
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error("Bad theory name " + quote(name) + |
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" for file " + thy_path(Path.basic(base_name)) + Position.here(pos) + |
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Completion.report_theories(pos, List(base_name))) |
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val imports = header.imports.map({ case (s, pos) => (import_name(node_name, s), pos) }) |
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Document.Node.Header(imports, header.keywords, header.abbrevs) |
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} |
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catch { case exn: Throwable => Document.Node.bad_header(Exn.message(exn)) } |
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} |
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else Document.Node.no_header |
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} |
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def check_thy(name: Document.Node.Name, start: Token.Pos = Token.Pos.command, |
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strict: Boolean = true): Document.Node.Header = |
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with_thy_reader(name, check_thy_reader(name, _, start, strict)) |
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/* special header */ |
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def special_header(name: Document.Node.Name): Option[Document.Node.Header] = |
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{ |
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val imports = |
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if (Thy_Header.is_ml_root(name.theory)) List(import_name(name, Thy_Header.ML_BOOTSTRAP)) |
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else if (Thy_Header.is_bootstrap(name.theory)) List(import_name(name, Thy_Header.PURE)) |
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else Nil |
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if (imports.isEmpty) None |
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else Some(Document.Node.Header(imports.map((_, Position.none)))) |
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} |
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/* blobs */ |
212 |
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213 |
def undefined_blobs(nodes: Document.Nodes): List[Document.Node.Name] = |
|
214 |
(for { |
|
215 |
(node_name, node) <- nodes.iterator |
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if !session_base.loaded_theory(node_name) |
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cmd <- node.load_commands.iterator |
218 |
name <- cmd.blobs_undefined.iterator |
|
219 |
} yield name).toList |
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220 |
||
221 |
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/* document changes */ |
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|
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def parse_change( |
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reparse_limit: Int, |
226 |
previous: Document.Version, |
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227 |
doc_blobs: Document.Blobs, |
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edits: List[Document.Edit_Text]): Session.Change = |
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66959 | 229 |
Thy_Syntax.parse_change(resources, reparse_limit, previous, doc_blobs, edits) |
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def commit(change: Session.Change) { } |
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|
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234 |
/* theory and file dependencies */ |
|
235 |
||
236 |
object Dependencies |
|
237 |
{ |
|
238 |
val empty = new Dependencies(Nil, Set.empty) |
|
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} |
|
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||
241 |
final class Dependencies private( |
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242 |
rev_entries: List[Document.Node.Entry], |
|
243 |
val seen: Set[Document.Node.Name]) |
|
244 |
{ |
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def :: (entry: Document.Node.Entry): Dependencies = |
|
246 |
new Dependencies(entry :: rev_entries, seen) |
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247 |
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248 |
def + (name: Document.Node.Name): Dependencies = |
|
249 |
new Dependencies(rev_entries, seen + name) |
|
250 |
||
251 |
def entries: List[Document.Node.Entry] = rev_entries.reverse |
|
252 |
def names: List[Document.Node.Name] = entries.map(_.name) |
|
253 |
||
254 |
def errors: List[String] = entries.flatMap(_.header.errors) |
|
255 |
||
67056 | 256 |
def check_errors: Dependencies = |
257 |
errors match { |
|
258 |
case Nil => this |
|
259 |
case errs => error(cat_lines(errs)) |
|
260 |
} |
|
261 |
||
66959 | 262 |
lazy val loaded_theories: Graph[String, Outer_Syntax] = |
263 |
(session_base.loaded_theories /: entries)({ case (graph, entry) => |
|
264 |
val name = entry.name.theory |
|
265 |
val imports = entry.header.imports.map(p => p._1.theory) |
|
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||
267 |
val graph1 = (graph /: (name :: imports))(_.default_node(_, Outer_Syntax.empty)) |
|
268 |
val graph2 = (graph1 /: imports)(_.add_edge(_, name)) |
|
269 |
||
270 |
val syntax0 = if (name == Thy_Header.PURE) List(Thy_Header.bootstrap_syntax) else Nil |
|
271 |
val syntax1 = (name :: graph2.imm_preds(name).toList).map(graph2.get_node(_)) |
|
272 |
val syntax = Outer_Syntax.merge(syntax0 ::: syntax1) + entry.header |
|
273 |
||
274 |
graph2.map_node(name, _ => syntax) |
|
275 |
}) |
|
276 |
||
277 |
def loaded_files: List[(String, List[Path])] = |
|
278 |
{ |
|
279 |
names.map(_.theory) zip |
|
280 |
Par_List.map((e: () => List[Path]) => e(), |
|
281 |
names.map(name => resources.loaded_files(loaded_theories.get_node(name.theory), name))) |
|
282 |
} |
|
283 |
||
284 |
def imported_files: List[Path] = |
|
285 |
{ |
|
286 |
val base_theories = |
|
287 |
loaded_theories.all_preds(names.map(_.theory)). |
|
288 |
filter(session_base.loaded_theories.defined(_)) |
|
289 |
||
290 |
base_theories.map(theory => session_base.known.theories(theory).path) ::: |
|
291 |
base_theories.flatMap(session_base.known.loaded_files(_)) |
|
292 |
} |
|
293 |
||
294 |
lazy val overall_syntax: Outer_Syntax = |
|
295 |
Outer_Syntax.merge(loaded_theories.maximals.map(loaded_theories.get_node(_))) |
|
296 |
||
297 |
override def toString: String = entries.toString |
|
298 |
} |
|
299 |
||
300 |
private def show_path(names: List[Document.Node.Name]): String = |
|
301 |
names.map(name => quote(name.theory)).mkString(" via ") |
|
302 |
||
303 |
private def cycle_msg(names: List[Document.Node.Name]): String = |
|
304 |
"Cyclic dependency of " + show_path(names) |
|
305 |
||
306 |
private def required_by(initiators: List[Document.Node.Name]): String = |
|
307 |
if (initiators.isEmpty) "" |
|
308 |
else "\n(required by " + show_path(initiators.reverse) + ")" |
|
309 |
||
310 |
private def require_thy(initiators: List[Document.Node.Name], required: Dependencies, |
|
311 |
thy: (Document.Node.Name, Position.T)): Dependencies = |
|
312 |
{ |
|
313 |
val (name, pos) = thy |
|
314 |
||
315 |
def message: String = |
|
316 |
"The error(s) above occurred for theory " + quote(name.theory) + |
|
317 |
required_by(initiators) + Position.here(pos) |
|
318 |
||
319 |
if (required.seen(name)) required |
|
320 |
else { |
|
67053 | 321 |
val required1 = required + name |
322 |
if (session_base.loaded_theory(name)) required1 |
|
323 |
else { |
|
324 |
try { |
|
325 |
if (initiators.contains(name)) error(cycle_msg(initiators)) |
|
326 |
val header = |
|
327 |
try { check_thy(name, Token.Pos.file(name.node)).cat_errors(message) } |
|
328 |
catch { case ERROR(msg) => cat_error(msg, message) } |
|
329 |
Document.Node.Entry(name, header) :: |
|
330 |
require_thys(name :: initiators, required1, header.imports) |
|
331 |
} |
|
332 |
catch { |
|
333 |
case e: Throwable => |
|
334 |
Document.Node.Entry(name, Document.Node.bad_header(Exn.message(e))) :: required1 |
|
335 |
} |
|
66959 | 336 |
} |
337 |
} |
|
338 |
} |
|
339 |
||
340 |
private def require_thys(initiators: List[Document.Node.Name], required: Dependencies, |
|
341 |
thys: List[(Document.Node.Name, Position.T)]): Dependencies = |
|
342 |
(required /: thys)(require_thy(initiators, _, _)) |
|
343 |
||
344 |
def dependencies(thys: List[(Document.Node.Name, Position.T)]): Dependencies = |
|
345 |
require_thys(Nil, Dependencies.empty, thys) |
|
43651
511df47bcadc
some support for theory files within Isabelle/Scala session;
wenzelm
parents:
diff
changeset
|
346 |
} |