1 | | % (c) 2009-2022 Lehrstuhl fuer Softwaretechnik und Programmiersprachen, |
2 | | % Heinrich Heine Universitaet Duesseldorf |
3 | | % This software is licenced under EPL 1.0 (http://www.eclipse.org/org/documents/epl-v10.html) |
4 | | |
5 | | :- module(consistencycheck,[check_z_structure/3, |
6 | | check_z_structuret/3, |
7 | | check_z_substructure/4, |
8 | | check_z_substructuret/4]). |
9 | | |
10 | | :- use_module(probsrc(tools)). |
11 | | :- use_module(probsrc(error_manager)). |
12 | | :- use_module(library(lists)). |
13 | | :- use_module(library(terms)). |
14 | | :- use_module(prozsrc(z_tools)). |
15 | | |
16 | | :- use_module(probsrc(module_information)). |
17 | | :- module_info(group,proz). |
18 | | :- module_info(description,'This module provides functionality to check whether the internal data structures of ProZ are consistent.'). |
19 | | |
20 | | check_z_structure(Z,Comment,Assertions) :- check_z_substructure(Z,list(top),Comment,Assertions). |
21 | | check_z_structuret(Z,Comment,Assertions) :- check_z_substructuret(Z,list(top),Comment,Assertions). |
22 | | |
23 | | check_z_substructure(Z,Pos,Comment,Assertions) :- checkzstr(Z,untyped,Pos,Comment,Assertions). |
24 | | check_z_substructuret(Z,Pos,Comment,Assertions) :- checkzstr(Z,typed,Pos,Comment,Assertions). |
25 | | |
26 | | :- dynamic errorl/2. |
27 | | error(Msg,Expr) :- assertz(errorl(Msg,Expr)),fail. |
28 | | error(Msg1,Msg2,Expr) :- ajoin([Msg1,Msg2],Msg),error(Msg,Expr). |
29 | | |
30 | | checkzstr(Z,Mode,Pos,_,Assertions) :- retractall(errorl(_,_)),czstr(Z,Pos,Mode,Assertions),!. |
31 | | checkzstr(_,_,_,Comment,_) :- errorl(Msg,Expr), |
32 | | atom_concat(Comment,': ',M1),atom_concat(M1,Msg,M), |
33 | | add_error(consistencycheck,M,Expr),fail. |
34 | | |
35 | | %czstr1(Z,_,_,_) :- \+ ground(Z),!,error('specification not ground', Z). |
36 | | %czstr1(Z,Pos,Mode,Assertions) :- czstr(Z,Pos,Mode,Assertions). |
37 | | |
38 | | czstr([],list(_),_,_) :- !. |
39 | | czstr([E|Rest],list(Type),Mode,Assertions) :- |
40 | | !,czstr(E,Type,Mode,Assertions),czstr(Rest,list(Type),Mode,Assertions). |
41 | | |
42 | | czstr(Expr,number,_,_) :- !,(number(Expr) -> true; error('number expected:',Expr)). |
43 | | czstr(Expr,name,_,_) :- !,(Expr=name(N,D)->true;error('name expected:',Expr)),catom(N),catom(D). |
44 | | czstr(Expr,shead,M,Assertions) :- |
45 | | !,(Expr=shead(N,P)->true;error('shead expected:',Expr)), |
46 | | catom(N),czstr(P,list(name),M,Assertions). |
47 | | czstr(Expr,lhs,M,Assertions) :- |
48 | | !,(Expr=lhs(N,P)->true;error('lhs expected:',Expr)), |
49 | | czstr(N,name,M,Assertions),czstr(P,list(name),M,Assertions). |
50 | | czstr(Expr,token,_,_) :- !,catom(Expr). |
51 | | czstr(Expr,type,_,Assertions) :- |
52 | ? | !,(checktype(expr,Expr,Assertions)->true;error('invalid type:',Expr)). |
53 | | czstr(Expr,Type,untyped,Assertions) :- |
54 | | !,czstr2(Expr,Type,untyped,Assertions). |
55 | | czstr(ti(Expr,TypeExpr),Type,typed,Assertions) :- |
56 | | !, |
57 | ? | (checktype(Type,TypeExpr,Assertions)->true;error('invalid type in mode ',Type,TypeExpr)), |
58 | | czstr2(Expr,Type,typed,Assertions). |
59 | | czstr(Expr,_,typed,_) :- error('type info expected',Expr). |
60 | | |
61 | | catom(A) :- (atom(A) -> true; error('atom expected:',A)). |
62 | | |
63 | | czstr2(Expr,Type,Mode,Assertions) :- |
64 | | same_functor(Expr,TInfo), |
65 | ? | (zstrcheck(TInfo,Type,Labels) -> |
66 | | true;error('unexpected expression in mode ',Type,Expr)),!, |
67 | | check_labels(Assertions,Labels,Expr), |
68 | | Expr =.. [_|Args], |
69 | | TInfo =.. [_|ArgTypes], |
70 | | (same_length(Args,ArgTypes)->true;error('unexpected number of arguments',Expr)), |
71 | | czstr_l(Args,ArgTypes,Mode,Assertions). |
72 | | czstr_l([],[],_,_). |
73 | | czstr_l([E|ERest],[Type|TRest],Mode,Assertions) :- |
74 | | czstr(E,Type,Mode,Assertions), |
75 | | czstr_l(ERest,TRest,Mode,Assertions). |
76 | | |
77 | | zstrcheck(ref(name,list(expr)),expr,[]). |
78 | | zstrcheck(number(number),expr,[]). |
79 | | zstrcheck(apply(expr,expr),expr,[]). |
80 | | zstrcheck(inop(name,expr,expr),expr,[]). |
81 | | zstrcheck(ingen(name,expr,expr),expr,[]). |
82 | | zstrcheck(postop(name,expr),expr,[]). |
83 | | zstrcheck(pregen(name,expr),expr,[]). |
84 | | zstrcheck(inrel(name,expr,expr),pred,[]). |
85 | | zstrcheck(prerel(name,expr),pred,[]). |
86 | | zstrcheck(equal(expr,expr),pred,[]). |
87 | | zstrcheck(member(expr,expr),pred,[]). |
88 | | zstrcheck(power(expr),expr,[]). |
89 | | zstrcheck(cross(list(expr)),expr,[]). |
90 | | zstrcheck(tuple(list(expr)),expr,[]). |
91 | | zstrcheck(if(pred,expr,expr),expr,[]). |
92 | | zstrcheck(ext(list(expr)),expr,[]). |
93 | | zstrcheck(seq(list(expr)),expr,[]). |
94 | | zstrcheck(bag(list(expr)),expr,[]). |
95 | | zstrcheck(theta(token,token,list(rename)),expr,[]). |
96 | | zstrcheck(sexpr(sexpr),expr,[]). |
97 | | zstrcheck(select(expr,name),expr,[]). |
98 | | zstrcheck(lambda(body,expr),expr,[]). |
99 | | zstrcheck(comp(body,opt),expr,[]). |
100 | | zstrcheck(reclet(expr,expr),expr,[]). |
101 | | zstrcheck(just(expr),opt,[]). |
102 | | zstrcheck(nothing,opt,[]). |
103 | | zstrcheck(mu(body,opt),expr,[]). |
104 | | zstrcheck(falsity,pred,[]). |
105 | | zstrcheck(truth,pred,[]). |
106 | | zstrcheck(forall(body,pred),pred,[]). |
107 | | zstrcheck(exists(body,pred),pred,[]). |
108 | | zstrcheck(exists1(body,pred),pred,[]). |
109 | | zstrcheck(and(pred,pred),pred,[]). |
110 | | zstrcheck(or(pred,pred),pred,[]). |
111 | | zstrcheck(implies(pred,pred),pred,[]). |
112 | | zstrcheck(equiv(pred,pred),pred,[]). |
113 | | zstrcheck(not(pred),pred,[]). |
114 | | zstrcheck(spred(sexpr),pred,[]). |
115 | | zstrcheck(letexpr(list(letdef),expr),expr,[]). |
116 | | zstrcheck(letpred(list(letdef),pred),pred,[]). |
117 | | zstrcheck(letdef(name,expr),letdef,[]). |
118 | | zstrcheck(sref(token,token,list(expr),list(rename)),sexpr,[scalc]). |
119 | | zstrcheck(sand(sexpr,sexpr),sexpr,[scalc]). |
120 | | zstrcheck(sor(sexpr,sexpr),sexpr,[scalc]). |
121 | | zstrcheck(simplies(sexpr,sexpr),sexpr,[scalc]). |
122 | | zstrcheck(sequiv(sexpr,sexpr),sexpr,[scalc]). |
123 | | zstrcheck(snot(sexpr),sexpr,[scalc]). |
124 | | zstrcheck(sforall(body,sexpr),sexpr,[scalc]). |
125 | | zstrcheck(sexists(body,sexpr),sexpr,[scalc]). |
126 | | zstrcheck(sexists1(body,sexpr),sexpr,[scalc]). |
127 | | zstrcheck(hide(sexpr,list(name)),sexpr,[scalc]). |
128 | | zstrcheck(fatsemi(sexpr,sexpr),sexpr,[scalc]). |
129 | | zstrcheck(project(sexpr,sexpr),sexpr,[scalc]). |
130 | | zstrcheck(pre(sexpr),sexpr,[scalc]). |
131 | | zstrcheck(pipe(sexpr,sexpr),sexpr,[scalc]). |
132 | | zstrcheck(text(body),sexpr,[scalc]). |
133 | | |
134 | | zstrcheck(sdef(shead,body),top,[]). |
135 | | zstrcheck(defeq(shead,sexpr),top,[]). |
136 | | zstrcheck(eqeq(lhs,expr),top,[]). |
137 | | zstrcheck(define(list(name),body),top,[]). |
138 | | zstrcheck(axdef(body),top,[]). |
139 | | zstrcheck(pred(pred),top,[]). |
140 | | zstrcheck(given(list(name)),top,[]). |
141 | | zstrcheck(data(name,list(arm)),top,[]). |
142 | | zstrcheck(arm(name,opt),arm,[]). |
143 | | |
144 | | zstrcheck(body(list(decl),list(pred)),body,[]). |
145 | | zstrcheck(body(list(decl),list(pred)),sexpr,[]). |
146 | | zstrcheck(decl(list(name),expr),decl,[]). |
147 | | zstrcheck(sdecl(sexpr),decl,[]). |
148 | | |
149 | | zstrcheck(rename(name,name),rename,[]). |
150 | | |
151 | | % internal constructs |
152 | | zstrcheck(namedset(name,list(name)),top,[]). |
153 | | zstrcheck(binding(list(bfield)),expr,[]). |
154 | | zstrcheck(bindfield(name,expr),bfield,[]). |
155 | | |
156 | | zstrcheck(basetype(type),expr,[]). |
157 | | |
158 | | zstrcheck(ftconstant(name,name),expr,[]). |
159 | | zstrcheck(ftconstructor(name,name,expr),expr,[]). |
160 | | zstrcheck(ftdestructor(name,name,expr),expr,[]). |
161 | | zstrcheck(ftcase(name,name,expr),pred,[]). |
162 | | |
163 | | checktype(pred,bool,_). |
164 | | checktype(top,none,_). |
165 | | checktype(opt,none,_). |
166 | | checktype(arm,none,_). |
167 | | checktype(letdef,none,_). |
168 | | checktype(bfield,none,_). |
169 | ? | checktype(sexpr,set(schema(S)),Assertions) :- checkschematype(S,Assertions). |
170 | ? | checktype(body,set(schema(S)),Assertions) :- checkschematype(S,Assertions). |
171 | | checktype(decl,none,_). |
172 | | checktype(expr,num,_). |
173 | | checktype(expr,given(N),Assertions) :- czstr(N,name,typed,Assertions). |
174 | | checktype(expr,freetype(N),Assertions) :- czstr(N,name,typed,Assertions). |
175 | ? | checktype(expr,set(T),Assertions) :- checktype(expr,T,Assertions). |
176 | ? | checktype(expr,tuple(L),Assertions) :- checktype_l(L,Assertions). |
177 | | checktype(expr,schema(F),Assertions) :- checkschematype(F,Assertions). |
178 | | checktype(expr,param(_),_). |
179 | | |
180 | | checktype_l([],_). |
181 | | checktype_l([E|Rest],Assertions) :- |
182 | ? | checktype(expr,E,Assertions),checktype_l(Rest,Assertions). |
183 | | checkschematype([],_). |
184 | | checkschematype([field(N,T)|Rest],Assertions) :- |
185 | | czstr(N,name,typed,Assertions), |
186 | ? | checktype(expr,T,Assertions), |
187 | ? | checkschematype(Rest,Assertions). |
188 | | |
189 | | |
190 | | check_labels([],_,_). |
191 | | check_labels([label(L)|Rest],Labels,Expr) :- |
192 | | !,(member(L,Labels) -> |
193 | | !,check_labels(Rest,Labels,Expr); |
194 | | (atom_concat('label not present: ',L,Msg), |
195 | | error(Msg,Expr))). |
196 | | check_labels([nlabel(L)|Rest],Labels,Expr) :- |
197 | | !,(member(L,Labels) -> |
198 | | (!,atom_concat('label present: ',L,Msg), |
199 | | error(Msg,Expr)); |
200 | | check_labels(Rest,Labels,Expr)). |
201 | | check_labels([Assertion|_],_,Expr) :- |
202 | | atom_concat('unmatched assertion: ',Assertion,Msg), |
203 | | error(Msg,Expr). |