/// <summary>
///
/// </summary>
public override void TraverseChildren(IReturnStatement returnStatement)
{
Bpl.IToken tok = returnStatement.Token();
if (returnStatement.Expression != null)
{
ExpressionTraverser etrav = this.factory.MakeExpressionTraverser(this.sink, this, this.contractContext);
etrav.Traverse(returnStatement.Expression);
if (this.sink.ReturnVariable == null || etrav.TranslatedExpressions.Count < 1)
{
throw new TranslationException(String.Format("{0} returns a value that is not supported by the function", returnStatement.ToString()));
}
StmtBuilder.Add(Bpl.Cmd.SimpleAssign(tok,
new Bpl.IdentifierExpr(tok, this.sink.ReturnVariable), etrav.TranslatedExpressions.Pop()));
}
// FEEDBACK TODO extract into a method
if (PhoneCodeHelper.instance().PhoneFeedbackToggled)
{
IMethodDefinition methodTranslated = sink.getMethodBeingTranslated();
if (methodTranslated != null && PhoneCodeHelper.instance().isMethodInputHandlerOrFeedbackOverride(methodTranslated) &&
!PhoneCodeHelper.instance().isMethodIgnoredForFeedback(methodTranslated))
{
Bpl.AssertCmd falseAssertion = new Bpl.AssertCmd(Bpl.Token.NoToken, Bpl.LiteralExpr.False);
StmtBuilder.Add(falseAssertion);
}
}
StmtBuilder.Add(new Bpl.ReturnCmd(returnStatement.Token()));
}
private static void trackNavigationVariableName(IFieldDefinition fieldDefinition, Bpl.Variable fieldVar)
{
if (fieldDefinition.Name.Value.Equals(PhoneCodeHelper.IL_CURRENT_NAVIGATION_URI_VARIABLE))
{
PhoneCodeHelper.instance().setBoogieNavigationVariable(fieldVar.Name);
}
}
private void addPhoneTopLevelDeclarations()
{
if (PhoneCodeHelper.instance().PhoneNavigationToggled)
{
Bpl.Variable continueOnPageVar = sink.FindOrCreateGlobalVariable(PhoneCodeHelper.BOOGIE_CONTINUE_ON_PAGE_VARIABLE, Bpl.Type.Bool);
sink.TranslatedProgram.AddTopLevelDeclaration(continueOnPageVar);
Bpl.Variable navigationCheckVar = sink.FindOrCreateGlobalVariable(PhoneCodeHelper.BOOGIE_NAVIGATION_CHECK_VARIABLE, Bpl.Type.Bool);
sink.TranslatedProgram.AddTopLevelDeclaration(navigationCheckVar);
}
}
public override void TraverseChildren(IFieldDefinition fieldDefinition)
{
Bpl.Variable fieldVar = this.sink.FindOrCreateFieldVariable(fieldDefinition);
// if tracked by the phone plugin, we need to find out the bpl assigned name for future use
if (PhoneCodeHelper.instance().PhonePlugin != null)
{
trackControlVariableName(fieldDefinition, fieldVar);
trackNavigationVariableName(fieldDefinition, fieldVar);
}
}
private void trackPhoneApplicationClassname(ITypeDefinition typeDef)
{
if (PhoneCodeHelper.instance().PhonePlugin != null && typeDef.isPhoneApplicationClass(sink.host))
{
INamespaceTypeDefinition namedTypeDef = typeDef as INamespaceTypeDefinition;
// string fullyQualifiedName = namedTypeDef.ContainingNamespace.Name.Value + "." + namedTypeDef.Name.Value;
string fullyQualifiedName = namedTypeDef.ToString();
PhoneCodeHelper.instance().setMainAppTypeReference(typeDef);
PhoneCodeHelper.instance().setMainAppTypeName(fullyQualifiedName);
}
}
public virtual void TranslateAssemblies(IEnumerable <IUnit> assemblies)
{
if (PhoneCodeHelper.instance().PhonePlugin != null)
{
addPhoneTopLevelDeclarations();
}
foreach (var a in assemblies)
{
this.Traverse((IAssembly)a);
}
}
private void trackPhonePageNameVariableName(ITypeDefinition typeDef)
{
if (PhoneCodeHelper.instance().PhonePlugin != null && typeDef.isPhoneApplicationPageClass(sink.host))
{
INamespaceTypeDefinition namedTypeDef = typeDef as INamespaceTypeDefinition;
string fullyQualifiedName = namedTypeDef.ToString();
string xamlForClass = PhoneCodeHelper.instance().getXAMLForPage(fullyQualifiedName);
if (xamlForClass != null) // if not it is possibly an abstract page
{
string uriName = UriHelper.getURIBase(xamlForClass);
Bpl.Constant uriConstant = sink.FindOrCreateConstant(uriName);
PhoneCodeHelper.instance().setBoogieStringPageNameForPageClass(fullyQualifiedName, uriConstant.Name);
}
}
}
private static void trackControlVariableName(IFieldDefinition fieldDefinition, Bpl.Variable fieldVar)
{
INamespaceTypeReference namedContainerRef = fieldDefinition.ContainingType as INamespaceTypeReference;
if (namedContainerRef != null)
{
string containerName = namedContainerRef.ContainingUnitNamespace.Unit.Name.Value + "." + namedContainerRef.Name.Value;
IEnumerable <ControlInfoStructure> controls = PhoneCodeHelper.instance().PhonePlugin.getControlsForPage(containerName);
if (controls != null)
{
ControlInfoStructure ctrlInfo = controls.FirstOrDefault(ctrl => ctrl.Name == fieldDefinition.Name.Value);
if (ctrlInfo != null)
{
ctrlInfo.BplName = fieldVar.Name;
}
}
}
}
private void RaiseExceptionHelper(Bpl.StmtListBuilder builder)
{
int count = this.sink.nestedTryCatchFinallyStatements.Count;
if (count == 0)
{
// FEEDBACK TODO unfortunately return statements are created here too
// FEEDBACK TODO extract into a method
if (PhoneCodeHelper.instance().PhoneFeedbackToggled)
{
IMethodDefinition methodTranslated = sink.getMethodBeingTranslated();
if (methodTranslated != null && PhoneCodeHelper.instance().isMethodInputHandlerOrFeedbackOverride(methodTranslated) &&
!PhoneCodeHelper.instance().isMethodIgnoredForFeedback(methodTranslated))
{
Bpl.AssertCmd falseAssertion = new Bpl.AssertCmd(Bpl.Token.NoToken, Bpl.LiteralExpr.False);
builder.Add(falseAssertion);
}
}
builder.Add(new Bpl.ReturnCmd(Bpl.Token.NoToken));
}
else
{
Tuple <ITryCatchFinallyStatement, Sink.TryCatchFinallyContext> topOfStack = this.sink.nestedTryCatchFinallyStatements[count - 1];
string exceptionTarget;
if (topOfStack.Item2 == Sink.TryCatchFinallyContext.InTry)
{
exceptionTarget = this.sink.FindOrCreateCatchLabel(topOfStack.Item1);
}
else if (topOfStack.Item2 == Sink.TryCatchFinallyContext.InCatch)
{
builder.Add(TranslationHelper.BuildAssignCmd(Bpl.Expr.Ident(this.sink.LabelVariable), Bpl.Expr.Literal(-1)));
exceptionTarget = this.sink.FindOrCreateFinallyLabel(topOfStack.Item1);
}
else
{
exceptionTarget = this.sink.FindOrCreateContinuationLabel(topOfStack.Item1);
}
builder.Add(new Bpl.GotoCmd(Bpl.Token.NoToken, new List <string>(new string[] { exceptionTarget })));
}
}
/// <summary>
///
/// </summary>
public override void TraverseChildren(IMethodDefinition method)
{
if (method.IsStaticConstructor)
{
this.sawCctor = true;
}
bool isEventAddOrRemove = method.IsSpecialName && (method.Name.Value.StartsWith("add_") || method.Name.Value.StartsWith("remove_"));
if (isEventAddOrRemove)
{
return;
}
Sink.ProcedureInfo procInfo;
IMethodDefinition stubMethod = null;
if (IsStubMethod(method, out stubMethod))
{
procInfo = this.sink.FindOrCreateProcedure(stubMethod);
}
else
{
procInfo = this.sink.FindOrCreateProcedure(method);
}
if (method.IsAbstract || method.IsExternal) // we're done, just define the procedure
{
return;
}
this.sink.BeginMethod(method);
var decl = procInfo.Decl;
var proc = decl as Bpl.Procedure;
var formalMap = procInfo.FormalMap;
if (this.entryPoint != null && method.InternedKey == this.entryPoint.InternedKey)
{
decl.AddAttribute("entrypoint");
}
// FEEDBACK inline handler methods to avoid more false alarms
if (PhoneCodeHelper.instance().PhoneFeedbackToggled&& PhoneCodeHelper.instance().isMethodInputHandlerOrFeedbackOverride(method) &&
!PhoneCodeHelper.instance().isMethodIgnoredForFeedback(method))
{
proc.AddAttribute("inline", new Bpl.LiteralExpr(Bpl.Token.NoToken, Microsoft.Basetypes.BigNum.ONE));
PhoneCodeHelper.instance().trackCallableMethod(proc);
}
try {
StatementTraverser stmtTraverser = this.Factory.MakeStatementTraverser(this.sink, this.PdbReader, false);
// FEEDBACK if this is a feedback method it will be plagued with false asserts. They will trigger if $Exception becomes other than null
// FEEDBACK for modular analysis we need it to be non-null at the start
// FEEDBACK also, callee is obviously non null
IMethodDefinition translatedMethod = sink.getMethodBeingTranslated();
if (PhoneCodeHelper.instance().PhoneFeedbackToggled&& translatedMethod != null &&
PhoneCodeHelper.instance().isMethodInputHandlerOrFeedbackOverride(translatedMethod))
{
// assign null to exception
List <Bpl.AssignLhs> assignee = new List <Bpl.AssignLhs>();
Bpl.AssignLhs exceptionAssignee = new Bpl.SimpleAssignLhs(Bpl.Token.NoToken, Bpl.Expr.Ident(this.sink.Heap.ExceptionVariable));
assignee.Add(exceptionAssignee);
List <Bpl.Expr> value = new List <Bpl.Expr>();
value.Add(Bpl.Expr.Ident(this.sink.Heap.NullRef));
Bpl.Cmd exceptionAssign = new Bpl.AssignCmd(Bpl.Token.NoToken, assignee, value);
stmtTraverser.StmtBuilder.Add(exceptionAssign);
}
#region Add assignments from In-Params to local-Params
foreach (MethodParameter mparam in formalMap)
{
if (mparam.inParameterCopy != null)
{
Bpl.IToken tok = method.Token();
stmtTraverser.StmtBuilder.Add(Bpl.Cmd.SimpleAssign(tok,
new Bpl.IdentifierExpr(tok, mparam.outParameterCopy),
new Bpl.IdentifierExpr(tok, mparam.inParameterCopy)));
}
}
#endregion
#region For non-deferring ctors and all cctors, initialize all fields to null-equivalent values
var inits = InitializeFieldsInConstructor(method);
if (0 < inits.Count)
{
foreach (var s in inits)
{
stmtTraverser.Traverse(s);
}
}
#endregion
#region Translate method attributes
// Don't need an expression translator because there is a limited set of things
// that can appear as arguments to custom attributes
// TODO: decode enum values
try {
foreach (var a in method.Attributes)
{
var attrName = TypeHelper.GetTypeName(a.Type);
if (attrName.EndsWith("Attribute"))
{
attrName = attrName.Substring(0, attrName.Length - 9);
}
var args = new List <object>();
foreach (var c in a.Arguments)
{
var mdc = c as IMetadataConstant;
if (mdc != null)
{
object o;
if (mdc.Type.IsEnum)
{
var lit = Bpl.Expr.Literal((int)mdc.Value);
lit.Type = Bpl.Type.Int;
o = lit;
}
else
{
switch (mdc.Type.TypeCode)
{
case PrimitiveTypeCode.Boolean:
o = (bool)mdc.Value ? Bpl.Expr.True : Bpl.Expr.False;
break;
case PrimitiveTypeCode.Int32:
var lit = Bpl.Expr.Literal((int)mdc.Value);
lit.Type = Bpl.Type.Int;
o = lit;
break;
case PrimitiveTypeCode.String:
o = mdc.Value;
break;
default:
throw new InvalidCastException("Invalid metadata constant type");
}
}
args.Add(o);
}
}
decl.AddAttribute(attrName, args.ToArray());
}
} catch (InvalidCastException) {
Console.WriteLine("Warning: Cannot translate custom attributes for method\n '{0}':",
MemberHelper.GetMethodSignature(method, NameFormattingOptions.None));
Console.WriteLine(" >>Skipping attributes, continuing with method translation");
}
#endregion
#region Translate body
var helperTypes = stmtTraverser.TranslateMethod(method);
if (helperTypes != null)
{
this.privateTypes.AddRange(helperTypes);
}
#endregion
#region Create Local Vars For Implementation
List <Bpl.Variable> vars = new List <Bpl.Variable>();
foreach (MethodParameter mparam in formalMap)
{
if (!mparam.underlyingParameter.IsByReference)
{
vars.Add(mparam.outParameterCopy);
}
}
foreach (Bpl.Variable v in this.sink.LocalVarMap.Values)
{
vars.Add(v);
}
// LocalExcVariable holds the exception thrown by any method called from this method, even if this method swallows all exceptions
if (0 < this.sink.Options.modelExceptions)
{
vars.Add(procInfo.LocalExcVariable);
}
vars.Add(procInfo.LabelVariable);
List <Bpl.Variable> vseq = new List <Bpl.Variable>(vars.ToArray());
#endregion
var translatedBody = stmtTraverser.StmtBuilder.Collect(Bpl.Token.NoToken);
#region Add implementation to Boogie program
if (proc != null)
{
Bpl.Implementation impl =
new Bpl.Implementation(method.Token(),
decl.Name,
new List <Bpl.TypeVariable>(),
decl.InParams,
decl.OutParams,
vseq,
translatedBody);
impl.Proc = proc;
this.sink.TranslatedProgram.AddTopLevelDeclaration(impl);
}
else // method is translated as a function
//var func = decl as Bpl.Function;
//Contract.Assume(func != null);
//var blocks = new List<Bpl.Block>();
//var counter = 0;
//var returnValue = decl.OutParams[0];
//foreach (var bb in translatedBody.BigBlocks) {
// var label = bb.LabelName ?? "L" + counter++.ToString();
// var newTransferCmd = (bb.tc is Bpl.ReturnCmd)
// ? new Bpl.ReturnExprCmd(bb.tc.tok, Bpl.Expr.Ident(returnValue))
// : bb.tc;
// var b = new Bpl.Block(bb.tok, label, bb.simpleCmds, newTransferCmd);
// blocks.Add(b);
//}
//var localVars = new List<Bpl.Variable>();
//localVars.Add(returnValue);
//func.Body = new Bpl.CodeExpr(localVars, blocks);
{
}
#endregion
} catch (TranslationException te) {
Console.WriteLine("Translation error in body of \n '{0}':",
MemberHelper.GetMethodSignature(method, NameFormattingOptions.None));
Console.WriteLine("\t" + te.Message);
} catch (Exception e) {
Console.WriteLine("Error encountered during translation of \n '{0}':",
MemberHelper.GetMethodSignature(method, NameFormattingOptions.None));
Console.WriteLine("\t>>" + e.Message);
} finally {
}
}