@Override
public CmlProofObligationList caseATixeStmtAlternative(
ATixeStmtAlternative node, IPOContextStack question) throws AnalysisException {
CmlProofObligationList list = new CmlProofObligationList();
if (node.getPatternBind().getPattern() != null) {
// Nothing to do
} else if (node.getPatternBind().getBind() instanceof ATypeBind) {
// Nothing to do
} else if (node.getPatternBind().getBind() instanceof ASetBind) {
ASetBind bind = (ASetBind) node.getPatternBind().getBind();
list.addAll(bind.getSet().apply(this.expressionVisitor, question));
}
list.addAll(node.getStatement().apply(this.statementVisitor, question));
return list;
}
@Override
public CmlProofObligationList caseAModuleModules(AModuleModules node, IPOContextStack question)
throws AnalysisException {
IProofObligationList ovtpos =
assistantFactory
.createPDefinitionAssistant()
.getProofObligations(node.getDefs(), this.declAndDefVisitor, question);
CmlProofObligationList cmlpos = new CmlProofObligationList();
cmlpos.addAll(ovtpos);
return cmlpos;
}
@Override
public CmlProofObligationList caseACaseAlternative(
ACaseAlternative node, IPOContextStack question) throws AnalysisException {
CmlProofObligationList obligations = new CmlProofObligationList();
question.push(
new POCaseContext(node.getPattern(), node.getType(), node.getCexp(), assistantFactory));
obligations.addAll(node.getResult().apply(this.expressionVisitor, question));
question.pop();
question.push(
new PONotCaseContext(node.getPattern(), node.getType(), node.getCexp(), assistantFactory));
return obligations;
}
/**
* Run the proof obligation generator. The POs are placed in the return value but we may
* eventually want to switch them over to the registry
*
* @param sources The list of definition to generate obligations for
* @return - Returns CMLProofObligation list. This may need to change.
*/
public CmlProofObligationList generatePOs(List<PDefinition> sources) throws AnalysisException {
this.initialize();
CmlProofObligationList obligations = new CmlProofObligationList();
IPOContextStack ctxt = new POContextStack();
// for each CML paragraph
for (PDefinition paragraph : sources) {
try {
// process paragraph:
obligations.addAll(paragraph.apply(this, ctxt));
// obligations.addAll(paragraph.apply(overturePog, ctxt));
} catch (AnalysisException ae) {
// unexpected pog crash
throw ae;
}
}
obligations.renumber();
return obligations;
}