public EnablingConstraintCollector(Program i_prog)
{
prog = i_prog;
builder = new PredicateBuilder(i_prog);
valid = true;
empty = true;
s = ReserveVariableName("s", "Armada_TotalState");
tid = ReserveVariableName("tid", "Armada_ThreadHandle");
var threads = AH.MakeExprDotName(s, "threads", AH.MakeThreadsType());
t = AddVariableDeclaration("t", AH.MakeSeqSelectExpr(threads, tid, "Armada_Thread"));
locv = AddVariableDeclaration("locv", AH.MakeApply2("Armada_GetThreadLocalView", s, tid, "Armada_SharedMemory"));
top = AH.MakeExprDotName(t, "top", "Armada_StackFrame");
ghosts = AH.MakeExprDotName(s, "ghosts", "Armada_Ghosts");
}
public NextRoutine(Program i_prog, ArmadaSymbolTable i_symbols, NextType i_nextType, MethodInfo methodInfo,
ArmadaStatement i_armadaStatement, Statement i_stmt, ArmadaPC i_pc, ArmadaPC i_endPC)
{
prog = i_prog;
symbols = i_symbols;
nextType = i_nextType;
validStepBuilder = new PredicateBuilder(i_prog);
crashAvoidanceBuilder = new PredicateBuilder(i_prog);
getNextStateBuilder = new ExpressionBuilder(i_prog);
method = methodInfo != null ? methodInfo.method : null;
armadaStatement = i_armadaStatement;
stmt = i_stmt;
pc = i_pc;
endPC = i_endPC;
formals = new List <NextFormal>();
valid = true;
s = ReserveVariableName("s", "Armada_TotalState");
tid = ReserveVariableName("tid", "Armada_ThreadHandle");
locv = null;
// s.stop_reason.Armada_NotStopped?
var stop_reason = AH.MakeExprDotName(s, "stop_reason", "Armada_StopReason");
var not_stopped = AH.MakeExprDotName(stop_reason, "Armada_NotStopped?", new BoolType());
AddConjunct(not_stopped);
// tid in s.threads
var threads = AH.MakeExprDotName(s, "threads", AH.MakeThreadsType());
var tid_in_threads = AH.MakeInExpr(tid, threads);
AddConjunct(tid_in_threads);
// var t := s.threads[tid];
t = AddVariableDeclaration("t", AH.MakeSeqSelectExpr(threads, tid, "Armada_Thread"));
// var locv := Armada_GetThreadLocalView(s, tid);
locv = AH.MakeApply2("Armada_GetThreadLocalView", s, tid, "Armada_SharedMemory");
locv = AddVariableDeclaration("locv", locv);
if (pc != null)
{
var current_pc = AH.MakeExprDotName(t, "pc", "Armada_PC");
var pc_correct = AH.MakeEqExpr(current_pc, AH.MakeNameSegment(pc.ToString(), "Armada_PC"));
AddConjunct(pc_correct);
// t.top.Armada_StackFrame_{methodName}?
var top = AH.MakeExprDotName(t, "top", "Armada_StackFrame");
var top_frame_correct = AH.MakeExprDotName(top, $"Armada_StackFrame_{pc.methodName}?", new BoolType());
AddConjunct(top_frame_correct);
if (methodInfo != null)
{
var constraints = methodInfo.GetEnablingConstraintCollector(pc);
if (constraints != null && !constraints.Empty)
{
var enabling_condition = AH.MakeApply2($"Armada_EnablingConditions_{pc}", s, tid, new BoolType());
AddConjunct(enabling_condition);
}
}
}
}