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Mar 17, 1998
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(* | ||
* connect.rml | ||
*) | ||
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module Connect : | ||
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with "exp.rml" | ||
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datatype Dir = IN | OUT | ||
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datatype Set = EQU of Exp.ComponentRef list | ||
| FLOW of (Exp.ComponentRef * Dir) list | ||
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type Sets = Set list | ||
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relation add_equ : (Sets, Exp.ComponentRef, Exp.ComponentRef) => Sets | ||
relation add_flow : (Sets, Exp.ComponentRef, Dir) => Sets | ||
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end | ||
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(********************************************************************** | ||
* Lookup | ||
**********************************************************************) | ||
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relation find_in_set_equ : (Exp.ComponentRef list, Exp.ComponentRef) => () = | ||
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rule Exp.eq_cref(c1,c2) | ||
------------------ | ||
find_in_set_equ(c1::_,c2) | ||
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rule find_in_set_equ(cs,c2) | ||
---------------------- | ||
find_in_set_equ(_::cs,c2) | ||
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end | ||
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relation find_in_set_flow : ((Exp.ComponentRef * Dir) list, Exp.ComponentRef) | ||
=> () = | ||
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rule Exp.eq_cref(c1,c2) | ||
------------------ | ||
find_in_set_flow((c1,_)::_,c2) | ||
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rule find_in_set_flow(cs,c2) | ||
---------------------- | ||
find_in_set_flow(_::cs,c2) | ||
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end | ||
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relation find_in_set : (Set, Exp.ComponentRef) => () = | ||
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rule find_in_set_equ(cs,c) | ||
--------------------- | ||
find_in_set(EQU(cs), c) | ||
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rule find_in_set_flow(cs, c) | ||
----------------------- | ||
find_in_set(FLOW(cs), c) | ||
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end | ||
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relation new_equ_set : Exp.ComponentRef => Set = | ||
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axiom new_equ_set c => EQU([c]) | ||
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end | ||
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relation new_flow_set : (Exp.ComponentRef,Dir) => Set = | ||
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axiom new_flow_set(c,d) => FLOW([(c,d)]) | ||
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end | ||
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relation find_equ_set : (Sets, Exp.ComponentRef) => Set = | ||
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rule new_equ_set c => s | ||
------------------ | ||
find_equ_set([],c) => s | ||
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rule find_in_set(s,c) | ||
---------------- | ||
find_equ_set(s::_,c) => s | ||
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rule find_equ_set(ss,c) => s | ||
------------------- | ||
find_equ_set(_::ss,c) => s | ||
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end | ||
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(********************************************************************** | ||
* Merge | ||
**********************************************************************) | ||
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relation remove_set : (Sets, Set) => Sets = | ||
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axiom remove_set([],_) => [] | ||
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rule s = s1 | ||
------ | ||
remove_set(s::ss, s1) => ss | ||
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rule remove_set(ss,s1) => ss' | ||
------------------------ | ||
remove_set(s::ss, s1) => s::ss' | ||
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end | ||
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relation remove_set2 : (Sets, Set, Set) => Sets = | ||
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axiom remove_set2([],_,_) => [] | ||
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rule s = s1 & | ||
remove_set(ss,s2) => ss' | ||
------------------------ | ||
remove_set2(s::ss, s1, s2) => ss' | ||
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rule s = s2 & | ||
remove_set(ss,s1) => ss' | ||
------------------------ | ||
remove_set2(s::ss, s1, s2) => ss' | ||
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rule remove_set2(ss,s1,s2) => ss' | ||
------------------------ | ||
remove_set2(s::ss, s1, s2) => s::ss' | ||
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end | ||
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relation merge : (Sets, Set, Set) => Sets = | ||
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rule s1 = s2 | ||
------- | ||
merge(ss,s1,s2) => ss | ||
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rule list_append(cs1,cs2) => cs & | ||
remove_set2(ss,s1,s2) => ss' | ||
---------------------------- | ||
merge(ss, s1 as EQU(cs1), s2 as EQU(cs2)) => EQU(cs)::ss' | ||
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rule list_append(cs1,cs2) => cs & | ||
remove_set2(ss,s1,s2) => ss' | ||
---------------------------- | ||
merge(ss, s1 as FLOW(cs1), s2 as FLOW(cs2)) => FLOW(cs)::ss' | ||
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end | ||
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(* Braindead *) | ||
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relation add_equ : (Sets, Exp.ComponentRef, Exp.ComponentRef) => Sets = | ||
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rule find_equ_set(ss,r1) => s1 & | ||
find_equ_set(ss,r2) => s2 & | ||
merge(ss,s1,s2) => ss' | ||
---------------------- | ||
add_equ(ss,r1,r2) => ss' | ||
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end | ||
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relation add_flow : (Sets, Exp.ComponentRef, Dir) => Sets = | ||
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axiom add_flow(s,r,d) => FLOW([(r,d)])::s | ||
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end |