public SatisfiabilityObligation(
AImplicitFunctionDefinition func, IPOContextStack ctxt, IPogAssistantFactory af)
throws AnalysisException {
super(func, POType.FUNC_SATISFIABILITY, ctxt, func.getLocation(), af);
/** f: A * B -> R [pre ...] post ... [pre_f(a, b) =>] exists r:R & post_f(a, b, r) */
List<PExp> arglist = new Vector<PExp>();
for (APatternListTypePair pltp : func.getParamPatterns()) {
for (PPattern pattern : pltp.getPatterns()) {
arglist.add(patternToExp(pattern));
}
}
AApplyExp preApply = null;
if (func.getPredef() != null) {
preApply =
getApplyExp(
getVarExp(func.getPredef().getName().clone(), func.getPredef().clone()), arglist);
preApply.setType(new ABooleanBasicType());
preApply.getRoot().setType(func.getPredef().getType().clone());
}
AExistsExp existsExp = new AExistsExp();
existsExp.setType(new ABooleanBasicType());
List<PExp> postArglist = new Vector<PExp>(arglist);
if (func.getResult().getPattern() instanceof AIdentifierPattern) {
AIdentifierPattern ip = (AIdentifierPattern) func.getResult().getPattern().clone();
postArglist.add(patternToExp(func.getResult().getPattern()));
existsExp.setBindList(
getMultipleTypeBindList(func.getResult().getType().clone(), ip.getName()));
} else {
throw new RuntimeException("Expecting identifier pattern in function result");
}
AApplyExp postApply =
getApplyExp(getVarExp(func.getPostdef().getName(), func.getPostdef()), postArglist);
postApply.setType(new ABooleanBasicType());
postApply.getRoot().setType(func.getPostdef().getType().clone());
existsExp.setPredicate(postApply);
if (preApply != null) {
AImpliesBooleanBinaryExp implies =
AstExpressionFactory.newAImpliesBooleanBinaryExp(preApply, existsExp);
stitch = implies;
valuetree.setPredicate(ctxt.getPredWithContext(implies));
} else {
stitch = existsExp;
valuetree.setPredicate(ctxt.getPredWithContext(existsExp));
}
// valuetree.setContext(ctxt.getContextNodeList());
}
@Override
public List<PDefinition> caseAImplicitFunctionDefinition(AImplicitFunctionDefinition node)
throws AnalysisException {
List<PDefinition> defs = new Vector<PDefinition>();
defs.add(node);
if (node.getPredef() != null) {
defs.add(node.getPredef());
}
if (node.getPostdef() != null) {
defs.add(node.getPostdef());
}
return defs;
}