| author | wenzelm |
| Mon, 19 Dec 2022 15:29:24 +0100 | |
| changeset 76714 | 95a926d483c5 |
| parent 75393 | 87ebf5a50283 |
| child 80462 | 7a1f9e571046 |
| permissions | -rw-r--r-- |
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52530
99dd8b4ef3fe
explicit module Document_ID as source of globally unique identifiers across ML/Scala;
wenzelm
parents:
diff
changeset
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/* Title: Pure/PIDE/document_id.scala |
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99dd8b4ef3fe
explicit module Document_ID as source of globally unique identifiers across ML/Scala;
wenzelm
parents:
diff
changeset
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Author: Makarius |
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99dd8b4ef3fe
explicit module Document_ID as source of globally unique identifiers across ML/Scala;
wenzelm
parents:
diff
changeset
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99dd8b4ef3fe
explicit module Document_ID as source of globally unique identifiers across ML/Scala;
wenzelm
parents:
diff
changeset
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Unique identifiers for document structure. |
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99dd8b4ef3fe
explicit module Document_ID as source of globally unique identifiers across ML/Scala;
wenzelm
parents:
diff
changeset
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99dd8b4ef3fe
explicit module Document_ID as source of globally unique identifiers across ML/Scala;
wenzelm
parents:
diff
changeset
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NB: ML ticks forwards > 0, JVM ticks backwards < 0. |
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99dd8b4ef3fe
explicit module Document_ID as source of globally unique identifiers across ML/Scala;
wenzelm
parents:
diff
changeset
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*/ |
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99dd8b4ef3fe
explicit module Document_ID as source of globally unique identifiers across ML/Scala;
wenzelm
parents:
diff
changeset
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99dd8b4ef3fe
explicit module Document_ID as source of globally unique identifiers across ML/Scala;
wenzelm
parents:
diff
changeset
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package isabelle |
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99dd8b4ef3fe
explicit module Document_ID as source of globally unique identifiers across ML/Scala;
wenzelm
parents:
diff
changeset
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99dd8b4ef3fe
explicit module Document_ID as source of globally unique identifiers across ML/Scala;
wenzelm
parents:
diff
changeset
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object Document_ID {
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type Generic = Long |
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type Version = Generic |
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type Command = Generic |
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type Exec = Generic |
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52530
99dd8b4ef3fe
explicit module Document_ID as source of globally unique identifiers across ML/Scala;
wenzelm
parents:
diff
changeset
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val none: Generic = 0 |
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val make: Counter = Counter.make() |
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52530
99dd8b4ef3fe
explicit module Document_ID as source of globally unique identifiers across ML/Scala;
wenzelm
parents:
diff
changeset
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def apply(id: Generic): String = Value.Long.apply(id) |
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def unapply(s: String): Option[Generic] = Value.Long.unapply(s) |
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52530
99dd8b4ef3fe
explicit module Document_ID as source of globally unique identifiers across ML/Scala;
wenzelm
parents:
diff
changeset
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} |