public override bool Visit(ModifierDefinition modifier)
{
//if (modifier.Parameters.Length() > 0)
//{
// throw new System.Exception("modifiers with parameters not implemented");
//}
var modifierInParams = TransUtils.GetDefaultInParams();
foreach (var parameter in modifier.Parameters.Parameters)
{
string name = null;
name = TransUtils.GetCanonicalLocalVariableName(parameter, context);
BoogieType type = TransUtils.GetBoogieTypeFromSolidityTypeName(parameter.TypeName);
modifierInParams.Add(new BoogieFormalParam(new BoogieTypedIdent(name, type)));
}
Block body = modifier.Body;
bool hasPre = false;
bool hasPost = false;
List <Statement> postlude = new List <Statement>();
// this list does not include locals introduced during translation
List <BoogieLocalVariable> localVarsDeclared = new List <BoogieLocalVariable>();
bool translatingPre = true;
foreach (Statement statement in body.Statements)
{
if (statement is VariableDeclarationStatement varDecls)
{
foreach (VariableDeclaration varDecl in varDecls.Declarations)
{
string name = TransUtils.GetCanonicalLocalVariableName(varDecl, context);
BoogieType type = TransUtils.GetBoogieTypeFromSolidityTypeName(varDecl.TypeName);
// Issue a warning for intXX variables in case /useModularArithemtic option is used:
if (context.TranslateFlags.UseModularArithmetic && varDecl.TypeDescriptions.IsInt())
{
Console.WriteLine($"Warning: signed integer arithmetic is not handled with /useModularArithmetic option");
}
var boogieVariable = new BoogieLocalVariable(new BoogieTypedIdent(name, type));
if (translatingPre)
{
localVarsDeclared.Add(boogieVariable); // don't add locals after placeholder
}
}
// throw new System.Exception("locals within modifiers not supported");
}
if (statement is PlaceholderStatement)
{
translatingPre = false;
// only capture those locals declared in the prefix, these are visible to postlude
context.AddPreludeLocalsToModifier(modifier.Name, localVarsDeclared);
continue;
}
if (translatingPre)
{
hasPre = true;
}
else
{
hasPost = true;
}
}
var attributes = new List <BoogieAttribute>();
attributes.Add(new BoogieAttribute("inline", 1));
if (hasPre)
{
List <BoogieVariable> inParams = new List <BoogieVariable>(modifierInParams);
List <BoogieVariable> outParams = new List <BoogieVariable>();
outParams.AddRange(localVarsDeclared.Select(x => new BoogieFormalParam(new BoogieTypedIdent("__out_mod_" + x.Name, x.TypedIdent.Type))));
BoogieProcedure preludeProc = new BoogieProcedure(modifier.Name + "_pre", inParams, outParams, attributes);
context.AddModiferToPreProc(modifier.Name, preludeProc);
BoogieImplementation preludeImpl = new BoogieImplementation(modifier.Name + "_pre",
inParams, outParams, new List <BoogieVariable>(), new BoogieStmtList());
context.AddModiferToPreImpl(modifier.Name, preludeImpl);
}
if (hasPost)
{
List <BoogieVariable> inParams = new List <BoogieVariable>(modifierInParams);
inParams.AddRange(localVarsDeclared);
List <BoogieVariable> outParams = new List <BoogieVariable>();
BoogieProcedure postludeProc = new BoogieProcedure(modifier.Name + "_post", inParams, outParams, attributes);
context.AddModiferToPostProc(modifier.Name, postludeProc);
BoogieImplementation postludeImpl = new BoogieImplementation(modifier.Name + "_post",
inParams, outParams, new List <BoogieVariable>(), new BoogieStmtList());
context.AddModiferToPostImpl(modifier.Name, postludeImpl);
}
return(false);
}
public override bool Visit(ModifierDefinition modifier)
{
//if (modifier.Parameters.Length() > 0)
//{
// throw new System.Exception("modifiers with parameters not implemented");
//}
var modifierInParams = TransUtils.GetDefaultInParams();
foreach (var parameter in modifier.Parameters.Parameters)
{
string name = null;
name = TransUtils.GetCanonicalLocalVariableName(parameter);
BoogieType type = TransUtils.GetBoogieTypeFromSolidityTypeName(parameter.TypeName);
modifierInParams.Add(new BoogieFormalParam(new BoogieTypedIdent(name, type)));
}
Block body = modifier.Body;
bool hasPre = false;
bool hasPost = false;
List <Statement> postlude = new List <Statement>();
bool translatingPre = true;
foreach (Statement statement in body.Statements)
{
if (statement is VariableDeclarationStatement)
{
throw new System.Exception("locals within modifiers not supported");
}
if (statement is PlaceholderStatement)
{
translatingPre = false;
continue;
}
if (translatingPre)
{
hasPre = true;
}
else
{
hasPost = true;
}
}
if (hasPre)
{
List <BoogieVariable> inParams = modifierInParams;
List <BoogieVariable> outParams = new List <BoogieVariable>();
BoogieProcedure preludeProc = new BoogieProcedure(modifier.Name + "_pre", inParams, outParams);
context.AddModiferToPreProc(modifier.Name, preludeProc);
BoogieImplementation preludeImpl = new BoogieImplementation(modifier.Name + "_pre",
inParams, outParams, new List <BoogieVariable>(), new BoogieStmtList());
context.AddModiferToPreImpl(modifier.Name, preludeImpl);
}
if (hasPost)
{
List <BoogieVariable> inParams = modifierInParams;
List <BoogieVariable> outParams = new List <BoogieVariable>();
BoogieProcedure postludeProc = new BoogieProcedure(modifier.Name + "_post", inParams, outParams);
context.AddModiferToPostProc(modifier.Name, postludeProc);
BoogieImplementation postludeImpl = new BoogieImplementation(modifier.Name + "_post",
inParams, outParams, new List <BoogieVariable>(), new BoogieStmtList());
context.AddModiferToPostImpl(modifier.Name, postludeImpl);
}
return(false);
}