public void Extract(ArmadaSymbolTable symbols, DeclCollector declCollector, List <string> stepCtors)
{
if (!valid)
{
return;
}
ExtractInternal(symbols, declCollector, stepCtors, false);
if (hasUndefinedBehaviorAvoidanceConstraint)
{
ExtractInternal(symbols, declCollector, stepCtors, true);
}
}
private void ExtractInternal(ArmadaSymbolTable symbols, DeclCollector declCollector, List <string> stepCtors, bool ub)
{
var nameSuffix = MakeNameSuffix();
if (ub)
{
nameSuffix = "UB_" + nameSuffix;
}
if (formals.Any())
{
var paramsFormalsList = String.Join(", ", formals.Select(f => $"{f.LocalVarName}: {f.VarType}"));
var paramsTypeDecl = $"datatype Armada_StepParams_{nameSuffix} = Armada_StepParams_{nameSuffix}({paramsFormalsList})";
declCollector.AddItem(paramsTypeDecl);
}
stepCtors.Add($"Armada_Step_{nameSuffix}("
+ (formals.Any() ? $"params_{nameSuffix}: Armada_StepParams_{nameSuffix}" : "")
+ ")");
var extraParameterDecls = formals.Any() ? $", params: Armada_StepParams_{nameSuffix}" : "";
var extraParameterArgs = formals.Any() ? $", params" : "";
var paramDecls = String.Concat(formals.Select(f => $"var {f.LocalVarName} := params.{f.LocalVarName};\n"));
var validState = ub ? validUndefinedStepBuilder.Extract() : validDefinedStepBuilder.Extract();
var nextState = ub ? $"s.(stop_reason := Armada_StopReasonUndefinedBehavior)" : $"{paramDecls}{getNextStateBuilder.Extract()}";
declCollector.AddItem($@"
predicate Armada_ValidStep_{nameSuffix}(s: Armada_TotalState, tid: Armada_ThreadHandle{extraParameterDecls})
requires tid in s.threads
{{
var t := s.threads[tid];
var locv := Armada_GetThreadLocalView(s, tid);
{paramDecls}
{validState}
}}
");
declCollector.AddItem($@"
function Armada_GetNextState_{nameSuffix}(s: Armada_TotalState, tid: Armada_ThreadHandle{extraParameterDecls})
: Armada_TotalState
requires tid in s.threads
requires Armada_ValidStep_{nameSuffix}(s, tid{extraParameterArgs})
{{
var t := s.threads[tid];
var locv := Armada_GetThreadLocalView(s, tid);
{nextState}
}}
");
var stopping = (nextType == NextType.TerminateProcess || nextType == NextType.AssertFalse || ub);
var nextRoutine = new NextRoutine(prog, symbols, nextType, methodInfo, armadaStatement, stmt, startPC, endPC,
formals, nameSuffix, ub, stopping);
symbols.AddNextRoutine(nextRoutine);
if (ub)
{
undefinedBehaviorNextRoutine = nextRoutine;
}
else
{
definedBehaviorNextRoutine = nextRoutine;
}
}
