public void AddEnablingConstraint(Program prog, ArmadaPC pc, Expression e)
{
if (!constraints.ContainsKey(pc))
{
constraints[pc] = new EnablingConstraintCollector(prog);
}
var constraintCollector = constraints[pc];
var context = new EnablingConstraintResolutionContext(constraintCollector, method.Name, symbols);
var rvalue = context.ResolveAsRValue(e);
constraintCollector.AddConjunct(rvalue.UndefinedBehaviorAvoidance);
constraintCollector.AddConjunct(rvalue.Val);
}
public void ParseMethodBody(ArmadaSymbolTable symbols)
{
var context = new ParseContext(prog, symbols, this);
parsedBody = ArmadaStatement.ParseStatement(context, method.Body);
var startPC = GenerateOnePC();
var endPC = parsedBody.AssignPCs(prog, symbols, this, startPC);
ArmadaStatement.CollectReturnPCs(parsedBody, returnPCs);
ArmadaStatement.ComputeNonyieldingPCs(parsedBody, nonyieldingPCs);
foreach (var statement in parsedBody)
{
if (statement is ArmadaAssumeStatement)
{
var s = (ArmadaAssumeStatement)statement;
var assumePC = s.StartPC;
if (!constraints.ContainsKey(assumePC))
{
constraints[assumePC] = new EnablingConstraintCollector(prog);
}
s.AddEnablingConstraint(symbols, this, constraints[assumePC]);
}
}
symbols.AssociateLabelWithPC("Start", startPC);
symbols.AssociateLabelWithPC("End", endPC);
foreach (var statement in parsedBody)
{
var stmt = statement.Stmt;
if (stmt != null)
{
for (var lbl = stmt.Labels; lbl != null; lbl = lbl.Next)
{
if (lbl.Data != null && lbl.Data.Name != null)
{
symbols.AssociateLabelWithPC(lbl.Data.Name, statement.StartPC);
}
}
}
}
}