| 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). |