private void SetupTypedLambdaParameters()
{
if (m_variableType == null)
{
throw new NotImplementedException();
}
else
{
if (m_variableType.Type != typeof(VarSpecifiedType))
{
if (m_variableType.Type.IsDelegate())
{
throw new NotSupportedException("TODO: Parser error");
}
m_lambdaDelegateTargetType = m_variableType.Type;
}
var scope = new ProcedureParsingScope(m_scopeStack.Peek(), "Lambda", ProcedureParsingScope.ScopeType.Lambda);
m_scopeStack.Push(scope);
foreach (var p in m_lambdaTypedParameters)
{
scope.AddLambdaExpressionParameter(p.Item1, p.Item2);
}
}
}
public override void EnterBlock([NotNull] SBP.BlockContext context)
{
if (m_scopeStack.Count > 0)
{
m_scopeStack.Push(new ProcedureParsingScope(m_scopeStack.Peek(), "Block", ProcedureParsingScope.ScopeType.Block));
}
else
{
m_procedureBaseScope = new ProcedureParsingScope(null, "Procedure", ProcedureParsingScope.ScopeType.Procedure);
m_scopeStack.Push(m_procedureBaseScope);
}
m_expressionData.PushStackLevel("Block"); // "Livrem og seler"
}
public void AddSubStatement(ProcedureParsingScope statementCode)
{
m_subStatements.Add(statementCode);
}
private void SetupUntypedLambdaParameters(params string[] parameterNames)
{
if (m_lambdaLeftExpression.IsMethodReference)
{
var possibleMethods = m_lambdaLeftExpression.GetMethods().ToArray();
var methods = new List <PrivateMethodInfoForLambdaResolver>();
var instance = m_lambdaLeftExpression.ExpressionCode;
// Find methods where this parameter is a delegate that have the right number of parameters.
foreach (var method in possibleMethods)
{
bool matching = false;
bool isExtension = method.IsExtension();
var parametersToSkip = (isExtension ? 1 : 0);
var parameters = method.GetParameters();
var parTypes = new List <Type>();
if (parameters.Length > parametersToSkip && ImplicitAttribute.IsImplicit(parameters[parametersToSkip]))
{
parametersToSkip++; // Skip this argument because it is implicit.
}
var parameterIndex = m_argumentIndex + parametersToSkip;
var resolverMethodData = new PrivateMethodInfoForLambdaResolver(method, parameterIndex);
if (parameterIndex < parameters.Length)
{
var parameter = parameters[parameterIndex];
var targetType = parameter.ParameterType;
if (targetType.IsDelegate())
{
var invokeMethod = targetType.GetMethod("Invoke");
var targetParameters = invokeMethod.GetParameters();
var returnType = invokeMethod.ReturnType;
resolverMethodData.DelegateReturnType = returnType;
if (parameterNames.Length == targetParameters.Length)
{
matching = true;
if (targetType.HasGenericArguments()) // Only possible if at the same time is an extension method. (!!)
{
var mga = method.GetGenericArguments().Select(t => new Tuple <string, Type>(t.Name, t)).ToList();
resolverMethodData.MethodGenericArguments = mga;
// Resolve those generic arguments from the instance.
var typedArgs = instance.Type.GetTypedGenericArguments(parameters[0].ParameterType);
foreach (var ti in typedArgs)
{
var index = mga.FindIndex(t => t.Item1 == ti.Item1);
mga[index] = new Tuple <string, Type>(mga[index].Item1, ti.Item2);
}
// Get types of delegate input parameters.
for (int i = 0; i < parameterNames.Length; i++)
{
var t = targetParameters[i].ParameterType;
if (t.IsGenericParameter)
{
var index = mga.FindIndex(tt => tt.Item1 == t.Name);
if (index >= 0)
{
t = mga[index].Item2;
}
else
{
// The type of this input parameter was not found.
matching = false;
break;
}
}
parTypes.Add(t);
}
if (matching && returnType.IsGenericParameter)
{
var nUnknownTypes = mga.Count(tt => tt.Item2.IsGenericParameter);
if (nUnknownTypes > 1)
{
matching = false;
}
else if (nUnknownTypes == 1)
{
matching = mga.Exists(tt => tt.Item2 == returnType);
}
}
resolverMethodData.LambdaParameterTypes = parTypes;
}
else
{
resolverMethodData.LambdaParameterTypes =
parameterNames.Select((n, i) => targetParameters[i].ParameterType).ToList();
resolverMethodData.DelegateType = targetType;
}
}
}
}
if (matching)
{
methods.Add(resolverMethodData);
}
else
{
m_lambdaLeftExpression.RemoveMethod(method); // Remove the method as a possible match, to avoid further processing.
}
}
if (methods.Count == 1)
{
var methodData = methods[0];
var method = methodData.Method;
var scope = new ProcedureParsingScope(m_scopeStack.Peek(), "Lambda", ProcedureParsingScope.ScopeType.Lambda);
m_scopeStack.Push(scope);
for (int i = 0; i < parameterNames.Length; i++)
{
scope.AddLambdaExpressionParameter(methodData.LambdaParameterTypes[i], parameterNames[i]);
}
m_lambdaDelegateTargetType = methodData.DelegateType;
m_lambdaDelegateReturnType = methodData.DelegateReturnType;
m_lambdaDelegateGenericArguments = methodData.MethodGenericArguments;
}
else
{
throw new NotImplementedException("Having more than one matching methods is not supported. Maybe it never will, and this should just be a parsing error.");
}
}
else
{
throw new NotImplementedException();
}
}
public override void EnterProcedureBody([NotNull] SBP.ProcedureBodyContext context)
{
m_scopeStack.Clear();
m_procedureBaseScope = null;
m_inFunctionScope = true;
}