--- a/src/Pure/Thy/thy_load.scala Wed Feb 29 17:43:41 2012 +0100
+++ b/src/Pure/Thy/thy_load.scala Wed Feb 29 23:09:06 2012 +0100
@@ -29,11 +29,39 @@
def append(dir: String, source_path: Path): String =
(Path.explode(dir) + source_path).implode
- def check_thy(name: Document.Node.Name): Thy_Header =
+ def read_header(name: Document.Node.Name): Thy_Header =
{
val file = new File(name.node)
if (!file.exists || !file.isFile) error("No such file: " + quote(file.toString))
Thy_Header.read(file)
}
+
+
+ /* theory files */
+
+ def thy_path(path: Path): Path = path.ext("thy")
+
+ private def import_name(dir: String, s: String): Document.Node.Name =
+ {
+ val theory = Thy_Header.base_name(s)
+ if (is_loaded(theory)) Document.Node.Name(theory, "", theory)
+ else {
+ val path = Path.explode(s)
+ val node = append(dir, thy_path(path))
+ val dir1 = append(dir, path.dir)
+ Document.Node.Name(node, dir1, theory)
+ }
+ }
+
+ def check_thy(name: Document.Node.Name): Document.Node.Deps =
+ {
+ val header = read_header(name)
+ val name1 = header.name
+ val imports = header.imports.map(import_name(name.dir, _))
+ val uses = header.uses.map(p => (append(name.dir, Path.explode(p._1)), p._2))
+ if (name.theory != name1)
+ error("Bad file name " + thy_path(Path.basic(name.theory)) + " for theory " + quote(name1))
+ Document.Node.Deps(imports, uses)
+ }
}