author | wenzelm |
Tue, 21 Aug 2012 14:54:29 +0200 | |
changeset 48872 | 6124e0d1120a |
parent 48871 | c82720f054c3 |
child 48873 | 18b17f15bc62 |
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(thy_load: Thy_Load) |
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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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type Dep = (Document.Node.Name, Document.Node.Header) |
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object Dependencies |
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{ |
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val empty = new Dependencies(Nil, Set.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 seen: Set[Document.Node.Name]) |
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{ |
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def :: (dep: Dep): Dependencies = new Dependencies(dep :: rev_deps, seen) |
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def + (name: Document.Node.Name): Dependencies = new Dependencies(rev_deps, seen = seen + name) |
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def deps: List[Dep] = rev_deps.reverse |
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def thy_load_commands: List[String] = |
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(for ((_, h) <- rev_deps; (cmd, Some(((Keyword.THY_LOAD, _), _))) <- h.keywords) yield cmd) ::: |
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thy_load.base_syntax.thy_load_commands |
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def loaded_theories: Set[String] = |
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(thy_load.loaded_theories /: rev_deps) { case (loaded, (name, _)) => loaded + name.theory } |
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def syntax: Outer_Syntax = |
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(thy_load.base_syntax /: rev_deps) { case (syn, (name, h)) => |
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val syn1 = syn.add_keywords(h) |
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// FIXME avoid hardwired stuff!? |
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// FIXME broken?! |
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if (name.theory == "Pure") |
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syn1 + |
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("hence", (Keyword.PRF_ASM_GOAL, Nil), "then have") + |
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("thus", (Keyword.PRF_ASM_GOAL, Nil), "then show") |
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else syn1 |
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} |
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} |
43651
511df47bcadc
some support for theory files within Isabelle/Scala session;
wenzelm
parents:
diff
changeset
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private def require_thys(initiators: List[Document.Node.Name], |
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required: Dependencies, names: List[Document.Node.Name]): Dependencies = |
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(required /: names)(require_thy(initiators, _, _)) |
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private def require_thy(initiators: List[Document.Node.Name], |
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required: Dependencies, name: Document.Node.Name): Dependencies = |
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{ |
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if (required.seen(name)) required |
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else if (thy_load.loaded_theories(name.theory)) required + name |
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wenzelm
parents:
diff
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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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wenzelm
parents:
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val header = |
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try { thy_load.check_thy(name) } |
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parents:
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catch { |
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case ERROR(msg) => |
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cat_error(msg, "The error(s) above occurred while examining theory " + |
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quote(name.theory) + required_by(initiators)) |
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wenzelm
parents:
diff
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} |
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(name, header) :: require_thys(name :: initiators, required + name, header.imports) |
43651
511df47bcadc
some support for theory files within Isabelle/Scala session;
wenzelm
parents:
diff
changeset
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} |
48707
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simplified Document.Node.Header -- internalized errors;
wenzelm
parents:
46737
diff
changeset
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catch { |
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case e: Throwable => |
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(name, Document.Node.bad_header(Exn.message(e))) :: (required + name) |
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simplified Document.Node.Header -- internalized errors;
wenzelm
parents:
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} |
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wenzelm
parents:
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} |
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parents:
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} |
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parents:
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def dependencies(names: List[Document.Node.Name]): Dependencies = |
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require_thys(Nil, Dependencies.empty, names) |
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wenzelm
parents:
diff
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} |