forked from Isabelle_DOF/Isabelle_DOF
Removed obsolete "extend" operation
This commit is contained in:
parent
bb5963c6e2
commit
a6c1a2baa4
|
@ -53,7 +53,6 @@ text\<open>
|
|||
\<open>structure Data = Generic_Data
|
||||
( type T = docobj_tab * docclass_tab * ...
|
||||
val empty = (initial_docobj_tab, initial_docclass_tab, ...)
|
||||
val extend = I
|
||||
fun merge((d1,c1,...),(d2,c2,...)) = (merge_docobj_tab (d1,d2,...),
|
||||
merge_docclass_tab(c1,c2,...))
|
||||
);\<close>}
|
||||
|
|
|
@ -364,7 +364,7 @@ subsection*[t213::example]\<open>Mechanism 2 : Extending the Global Context \<op
|
|||
|
||||
text\<open>A central mechanism for constructing user-defined data is by the \<^ML_functor>\<open>Generic_Data\<close>-functor.
|
||||
A plugin needing some data \<^verbatim>\<open>T\<close> and providing it with implementations for an
|
||||
\<^verbatim>\<open>empty\<close>, and operations \<^verbatim>\<open>merge\<close> and \<^verbatim>\<open>extend\<close>, can construct a lense with operations
|
||||
\<^verbatim>\<open>empty\<close>, and operation \<^verbatim>\<open>merge\<close>, can construct a lense with operations
|
||||
\<^verbatim>\<open>get\<close> and \<^verbatim>\<open>put\<close> that attach this data into the generic system context. Rather than using
|
||||
unsynchronized SML mutable variables, this is the mechanism to introduce component local
|
||||
data in Isabelle, which allows to manage this data for the necessary backtrack and synchronization
|
||||
|
@ -373,14 +373,12 @@ text\<open>A central mechanism for constructing user-defined data is by the \<^M
|
|||
ML \<open>
|
||||
datatype X = mt
|
||||
val init = mt;
|
||||
val ext = I
|
||||
fun merge (X,Y) = mt
|
||||
|
||||
structure Data = Generic_Data
|
||||
(
|
||||
type T = X
|
||||
val empty = init
|
||||
val extend = ext
|
||||
val merge = merge
|
||||
);
|
||||
\<close>
|
||||
|
|
|
@ -251,7 +251,6 @@ structure Data = Generic_Data
|
|||
docclass_eager_inv_tab = initial_docclass_eager_inv_tab,
|
||||
docclass_lazy_inv_tab = initial_docclass_lazy_inv_tab
|
||||
}
|
||||
val extend = I
|
||||
fun merge( {docobj_tab=d1,docclass_tab = c1,
|
||||
ISA_transformer_tab = e1, monitor_tab=m1,
|
||||
docclass_inv_tab = n1,
|
||||
|
|
Loading…
Reference in New Issue