public override TranslationResult Translate(TranslationContext context)
{
var symbol = context.Semantics.GetDeclaredSymbol(this.variable);
var identifier = context.Process.IdentifierTranslator.RegisterAndGetIdentifier(symbol);
Error err;
List <Error> errors = new List <Error>();
VarStatementSilvernode intro =
new VarStatementSilvernode(identifier,
TypeTranslator.TranslateType(
context.Semantics.GetSymbolInfo(this.typeSyntax).Symbol as ITypeSymbol, this.typeSyntax,
out err), this.OriginalNode);
if (err != null)
{
errors.Add(err);
}
if (this.initialValue == null)
{
return(TranslationResult.FromSilvernode(intro, errors));
}
// Add assignment if there is an initial value.
var res = this.initialValue.Translate(context.ChangePurityContext(PurityContext.Purifiable));
AssignmentSilvernode assignmentSilvernode =
new AssignmentSilvernode(new IdentifierSilvernode(identifier), res.Silvernode, this.OriginalNode);
errors.AddRange(res.Errors);
return(TranslationResult.FromSilvernode(new StatementsSequenceSilvernode(this.OriginalNode,
intro,
new StatementsSequenceSilvernode(null, res.PrependTheseSilvernodes.ToArray()),
assignmentSilvernode), errors));
}
public override void CollectTypesInto(TranslationProcess translationProcess, SemanticModel semantics)
{
var classSymbol = semantics.GetDeclaredSymbol(this.OriginalNode as ClassDeclarationSyntax);
// Should translate at all?
var attributes = classSymbol.GetAttributes();
switch (VerificationSettings.ShouldVerify(attributes, translationProcess.Configuration.VerifyUnmarkedItems))
{
case VerificationSetting.DoNotVerify:
return;
case VerificationSetting.Contradiction:
return;
}
this.TypeIfCollected = translationProcess.AddToCollectedTypes(this, semantics);
foreach (Sharpnode node in this.children)
{
// Collect fields
if (node is FieldDeclarationSharpnode)
{
FieldDeclarationSharpnode fieldDeclaration = (FieldDeclarationSharpnode)node;
var fieldSymbol = fieldDeclaration.GetSymbol(semantics);
if (fieldSymbol.IsConst)
{
continue; // Constants are inlined.
}
if (fieldSymbol.IsStatic)
{
translationProcess.AddError(new Error(Diagnostics.SSIL108_FeatureNotSupported,
node.OriginalNode, "static fields"));
continue;
}
var typeSymbol = fieldSymbol.Type;
Error error;
this.TypeIfCollected.InstanceFields.Add(
new CollectedField(
translationProcess.IdentifierTranslator.RegisterAndGetIdentifier(((FieldDeclarationSharpnode)node).GetSymbol(semantics)),
TypeTranslator.TranslateType(typeSymbol, node.OriginalNode, out error)
));
if (error != null)
{
translationProcess.AddError(error);
}
}
}
}
public override void Run(List <ExpressionSharpnode> arguments, SyntaxNode originalNode, TranslationContext context)
{
// Get the symbol
var methodSymbol = this._method.Symbol as IMethodSymbol;
var identifier = context.Process.IdentifierTranslator.GetIdentifierReference(this._method.Symbol as IMethodSymbol);
IMethodSymbol theMethod = (this._method.Symbol as IMethodSymbol);
// Determine purity
this.Impure = !(ContractsTranslator.IsMethodPureOrPredicate(theMethod));
// Add the receiver
if (!theMethod.IsStatic)
{
if (this.methodGroupSharpnode is IdentifierExpressionSharpnode)
{
arguments.Insert(0, new DirectSilvercodeExpressionSharpnode(Constants.SilverThis, this.methodGroup));
}
else if (this.methodGroupSharpnode is MemberAccessExpressionSharpnode)
{
arguments.Insert(0, ((MemberAccessExpressionSharpnode)this.methodGroupSharpnode).Container);
}
else
{
this.Errors.Add(new Error(Diagnostics.SSIL102_UnexpectedNode, this.methodGroup, this.methodGroup.Kind()));
}
}
// Determine return type
Error error;
this.SilverType = TypeTranslator.TranslateType(methodSymbol.ReturnType, this.methodGroup, out error);
if (error != null)
{
this.Errors.Add(error);
}
// Translate arguments
var expressions = ConvertToSilver(arguments, context);
// Put it together
this.Silvernode = new CallSilvernode(
identifier,
expressions, this.SilverType,
originalNode
);
}
/// <summary>
/// Prepares for insertion into quantifier.
/// Returns true if this lambda expression is valid for translation inside a ForAll or Exists call; false otherwise.
/// </summary>
/// <param name="context">The context.</param>
public bool PrepareForInsertionIntoQuantifier(TranslationContext context)
{
if (this.errorneousResult != null)
{
this.failedResult = TranslationResult.Error(this.errorneousResult.Node, this.errorneousResult.Diagnostic, this.errorneousResult.DiagnosticArguments);
return(false);
}
// Translate the single parameter's type
var parameterSymbol = context.Semantics.GetDeclaredSymbol(this.parameter.ParameterSyntax);
this.VariableIdentifier = context.Process.IdentifierTranslator.RegisterAndGetIdentifier(parameterSymbol);
this.VariableSilverType = TypeTranslator.TranslateType(parameterSymbol.Type, this.parameter.OriginalNode,
out this.errorneousResult);
if (this.errorneousResult != null)
{
this.failedResult = TranslationResult.Error(this.errorneousResult.Node, this.errorneousResult.Diagnostic, this.errorneousResult.DiagnosticArguments);
return(false);
}
// Translate the lambda's body
TranslationResult res = this.body.Translate(context.ChangePurityContext(PurityContext.PureOrFail));
if (res.WasTranslationSuccessful)
{
this.BodySilvernode = res.Silvernode;
}
else
{
this.failedResult = res;
return(false);
}
// Nothing went wrong.
return(true);
}
public TranslationResult Translate(TranslationContext context, IParameterSymbol symbol)
{
Error err;
ISymbol parameterSymbol = context.Semantics.GetDeclaredSymbol(this.ParameterSyntax);
Identifier identifier = context.Process.IdentifierTranslator.RegisterAndGetIdentifier(parameterSymbol);
ParameterSilvernode ps = new ParameterSilvernode(identifier,
new TypeSilvernode(this.Type.TypeSyntax, TypeTranslator.TranslateType(symbol.Type, this.Type.TypeSyntax, out err)), this.OriginalNode);
var errlist = new List <Error>();
if (err != null)
{
errlist.Add(err);
}
return(TranslationResult.FromSilvernode(ps, errlist));
}