private List<PExp> extractAssumptionsFromParameter(ProgParameterSymbol p) {
List<PExp> resultingAssumptions = new ArrayList<>();
if (p.getDeclaredType() instanceof ProgNamedType) {
// both PTFamily AND PTRepresentation are a PTNamed
ProgNamedType declaredType = (ProgNamedType) p.getDeclaredType();
PExp exemplar = declaredType.getExemplarAsPSymbol();
if (declaredType instanceof ProgFamilyType) {
PExp constraint = ((ProgFamilyType) declaredType).getConstraint();
constraint = constraint.substitute(getSpecializationsForFacility(p.getTypeQualifier()));
resultingAssumptions.add(
constraint.substitute(
declaredType.getExemplarAsPSymbol(),
p.asPSymbol())); // ASSUME TC (type constraint -- since we're conceptual)
} else if (declaredType instanceof PTRepresentation) {
ProgReprTypeSymbol repr = ((PTRepresentation) declaredType).getReprTypeSymbol();
PExp convention = repr.getConvention();
resultingAssumptions.add(
convention.substitute(declaredType.getExemplarAsPSymbol(), p.asPSymbol()));
// ASSUME RC (repr convention -- since we're a repr)
resultingAssumptions.add(repr.getCorrespondence());
}
} else { // PTGeneric
// resultingAssumptions.add(g.formInitializationPredicate(
// p.getDeclaredType(), p.getName()));
}
return resultingAssumptions;
}
private List<PExp> extractConsequentsFromParameter(ProgParameterSymbol p) {
List<PExp> result = new ArrayList<>();
PExp incParamExp = new PSymbolBuilder(p.asPSymbol()).incoming(true).build();
PExp paramExp = new PSymbolBuilder(p.asPSymbol()).incoming(false).build();
if (p.getDeclaredType() instanceof ProgNamedType) {
ProgNamedType t = (ProgNamedType) p.getDeclaredType();
PExp exemplar = new PSymbolBuilder(t.getExemplarName()).mathClssfctn(t.toMath()).build();
if (t instanceof PTRepresentation) {
ProgReprTypeSymbol repr = ((PTRepresentation) t).getReprTypeSymbol();
PExp convention = repr.getConvention();
PExp corrFnExp = repr.getCorrespondence();
result.add(convention.substitute(t.getExemplarAsPSymbol(), paramExp));
}
if (p.getMode() == ParameterMode.PRESERVES || p.getMode() == ParameterMode.RESTORES) {
PExp equalsExp =
g.formEquals(paramExp, incParamExp)
.withVCInfo(
p.getDefiningTree().getStart(),
"Ensure parameter " + p.getName() + " is restored");
result.add(equalsExp);
} else if (p.getMode() == ParameterMode.CLEARS) {
PExp init =
((ProgNamedType) p.getDeclaredType())
.getInitializationEnsures()
.substitute(exemplar, paramExp);
result.add(init);
}
}
return result;
}
private List<PExp> getAssertionsFromFormalParameters(
List<ProgParameterSymbol> parameters, Function<ProgParameterSymbol, List<PExp>> extract) {
List<PExp> result = new ArrayList<>();
for (ProgParameterSymbol p : parameters) {
result.addAll(extract.apply(p));
}
return result;
}
private List<PExp> getAssertionsFromModuleFormalParameters(
List<ModuleParameterSymbol> parameters, Function<ProgParameterSymbol, List<PExp>> extract) {
List<PExp> result = new ArrayList<>();
for (ModuleParameterSymbol p : parameters) {
// todo: For now.
if (p.getWrappedParamSymbol() instanceof ProgParameterSymbol) {
result.addAll(extract.apply((ProgParameterSymbol) p.getWrappedParamSymbol()));
}
}
return result;
}
public List<ModuleParameterSymbol> getAllModuleParameterSyms() {
List<ModuleParameterSymbol> result = moduleScope.getSymbolsOfType(ModuleParameterSymbol.class);
for (ModuleIdentifier e : moduleScope.getInheritedIdentifiers()) {
try {
ModuleScopeBuilder s = symtab.getModuleScope(e);
result.addAll(s.getSymbolsOfType(ModuleParameterSymbol.class));
} catch (NoSuchModuleException e1) { // should've been caught a long time ago
throw new RuntimeException(e1);
}
}
return result;
}
private List<PExp> reduceArgs(List<ParserRuleContext> args) {
List<PExp> result = new ArrayList<>();
for (ParserRuleContext arg : args) {
PExp argAsPExp = tr.getMathExpASTFor(g, arg);
if (argAsPExp instanceof PApply) { // i.e., we're dealing with a function application
PExp e = applyCallRuleToExp(arg, assertiveBlocks.peek(), (PApply) argAsPExp);
result.add(e);
} else {
result.add(argAsPExp);
}
}
return result;
}
private Set<PExp> getModuleLevelAssertionsOfType(ClauseType type) {
Set<PExp> result = new LinkedHashSet<>();
List<GlobalMathAssertionSymbol> assertions = new LinkedList<>();
List<FacilitySymbol> facilities = new LinkedList<>();
try {
assertions.addAll(
moduleScope
.query(
new SymbolTypeQuery<GlobalMathAssertionSymbol>(GlobalMathAssertionSymbol.class))
.stream()
.filter(e -> e.getClauseType() == type)
.collect(Collectors.toList()));
facilities.addAll(
moduleScope.query(new SymbolTypeQuery<FacilitySymbol>(FacilitySymbol.class)));
} catch (NoSuchModuleException | UnexpectedSymbolException e) {
}
return assertions
.stream()
.map(assertion -> substituteByFacilities(facilities, assertion))
.collect(Collectors.toSet());
}
@Override
public void exitProcedureDecl(ResolveParser.ProcedureDeclContext ctx) {
Scope scope = symtab.getScope(ctx);
List<ProgParameterSymbol> paramSyms = scope.getSymbolsOfType(ProgParameterSymbol.class);
VCAssertiveBlockBuilder block = assertiveBlocks.pop();
List<ProgParameterSymbol> formalParameters = new ArrayList<>();
try {
formalParameters =
scope.query(new SymbolTypeQuery<ProgParameterSymbol>(ProgParameterSymbol.class));
} catch (NoSuchModuleException | UnexpectedSymbolException e) {
e.printStackTrace();
}
List<PExp> corrFnExps =
paramSyms
.stream()
.filter(p -> p.getDeclaredType() instanceof PTRepresentation)
.map(p -> (PTRepresentation) p.getDeclaredType())
.map(p -> p.getReprTypeSymbol().getCorrespondence())
.collect(Collectors.toList());
PExp corrFnExpEnsures =
perParameterCorrFnExpSubstitute(paramSyms, currentProcOpSym.getEnsures())
.withVCInfo(ctx.getStart(), "Ensures clause of " + ctx.name.getText());
// postcondition[params 1..i <-- corr_fn_exp]
List<PExp> paramConsequents = new ArrayList<>();
Utils.apply(formalParameters, paramConsequents, this::extractConsequentsFromParameter);
block
.stats(Utils.collect(VCRuleBackedStat.class, ctx.stmt(), stats))
.assume(corrFnExps)
.confirm(ctx, g.formConjuncts(paramConsequents))
.finalConfirm(corrFnExpEnsures);
outputFile.addAssertiveBlock(block.build());
currentProcOpSym = null;
}