private BoogieStmtList GenerateHavocBlock(ContractDefinition contract, List <BoogieVariable> localVars)
{
BoogieStmtList stmtList = new BoogieStmtList();
foreach (BoogieVariable localVar in localVars)
{
string varName = localVar.TypedIdent.Name;
if (!varName.Equals("this"))
{
stmtList.AddStatement(new BoogieHavocCmd(new BoogieIdentifierExpr(varName)));
}
}
if (context.TranslateFlags.InstrumentGas)
{
TransUtils.havocGas(stmtList);
}
var nowVar = new BoogieIdentifierExpr("now");
var tmpNowVar = new BoogieIdentifierExpr("tmpNow");
stmtList.AddStatement(new BoogieAssignCmd(tmpNowVar, nowVar));
stmtList.AddStatement(new BoogieHavocCmd(nowVar));
stmtList.AddStatement(new BoogieAssumeCmd(new BoogieBinaryOperation(BoogieBinaryOperation.Opcode.GT, nowVar, tmpNowVar)));
stmtList.AddStatement(new BoogieAssumeCmd(new BoogieBinaryOperation(BoogieBinaryOperation.Opcode.NEQ, new BoogieIdentifierExpr("msgsender_MSG"), new BoogieIdentifierExpr("null"))));
if (context.TranslateFlags.NoTxnsFromContract)
{
foreach (var contractDef in context.ContractDefinitions)
{
BoogieIdentifierExpr contractIdent = new BoogieIdentifierExpr(contractDef.Name);
stmtList.AddStatement(new BoogieAssumeCmd(new BoogieBinaryOperation(
BoogieBinaryOperation.Opcode.NEQ,
new BoogieMapSelect(new BoogieIdentifierExpr("DType"),
new BoogieIdentifierExpr("msgsender_MSG")),
contractIdent)));
}
stmtList.AddStatement((new BoogieAssignCmd(new BoogieMapSelect(new BoogieIdentifierExpr("Alloc"), new BoogieIdentifierExpr("msgsender_MSG")), new BoogieLiteralExpr(true))));
}
return(stmtList);
}
private List <BoogieCmd> GenerateConstructorCall(ContractDefinition contract)
{
List <BoogieCmd> localStmtList = new List <BoogieCmd>();
string callee = TransUtils.GetCanonicalConstructorName(contract);
List <BoogieExpr> inputs = new List <BoogieExpr>()
{
new BoogieIdentifierExpr("this"),
new BoogieIdentifierExpr("msgsender_MSG"),
new BoogieIdentifierExpr("msgvalue_MSG"),
};
if (context.IsConstructorDefined(contract))
{
FunctionDefinition ctor = context.GetConstructorByContract(contract);
foreach (VariableDeclaration param in ctor.Parameters.Parameters)
{
string name = TransUtils.GetCanonicalLocalVariableName(param);
inputs.Add(new BoogieIdentifierExpr(name));
if (param.TypeName is ArrayTypeName array)
{
localStmtList.Add(new BoogieCallCmd(
"FreshRefGenerator",
new List <BoogieExpr>(), new List <BoogieIdentifierExpr>()
{
new BoogieIdentifierExpr(name)
}));
}
}
}
if (context.TranslateFlags.InstrumentGas)
{
TransUtils.havocGas(localStmtList);
}
localStmtList.Add(new BoogieCallCmd(callee, inputs, null));
return(localStmtList);
}