Expression ResolveOperator (EmitContext ec)
{
- Type expr_type = Expr.Type;
+ //
+ // Step 1: Default operations on CLI native types.
+ //
+
+ // Attempt to use a constant folding operation.
+ if (Expr is Constant){
+ Expression result;
+
+ if (Reduce (ec, (Constant) Expr, out result))
+ return result;
+ }
//
- // Step 1: Perform Operator Overload location
+ // Step 2: Perform Operator Overload location
//
+ Type expr_type = Expr.Type;
Expression mg;
string op_name;
if (expr_type == null)
return null;
- //
- // Step 2: Default operations on CLI native types.
- //
-
- // Attempt to use a constant folding operation.
- if (Expr is Constant){
- Expression result;
-
- if (Reduce (ec, (Constant) Expr, out result))
- return result;
- }
-
switch (Oper){
case Operator.LogicalNot:
if (expr_type != TypeManager.bool_type) {
return null;
}
lr.local_info.AddressTaken = true;
+ lr.local_info.Used = true;
}
// According to the specs, a variable is considered definitely assigned if you take
warning_always_matches = true;
} else if (Convert.ExplicitReferenceConversionExists (etype, probe_type)){
+ if (etype.IsGenericParameter)
+ expr = new BoxedCast (expr, etype);
+
//
// Second case: explicit reference convresion
//
warning_never_matches = true;
}
- if (warning_always_matches)
+ if (warning_always_matches)
Warning (183, "The given expression is always of the provided ('{0}') type", TypeManager.CSharpName (probe_type));
- else if (warning_never_matches){
- if (!(probe_type.IsInterface || expr.Type.IsInterface))
+ else if (warning_never_matches){
+ if (!(probe_type.IsInterface || expr.Type.IsInterface))
Warning (184, "The given expression is never of the provided ('{0}') type", TypeManager.CSharpName (probe_type));
}
return this;
- }
+ }
}
/// <summary>
}
if (Convert.ExplicitReferenceConversionExists (etype, probe_type)){
+ if (etype.IsGenericParameter)
+ expr = new BoxedCast (expr, etype);
+
do_isinst = true;
return this;
}
}
} else
left = left.Resolve (ec);
- right = right.Resolve (ec);
- if (left == null || right == null)
+ if (left == null)
+ return null;
+
+ Constant lc = left as Constant;
+ if (lc != null && lc.Type == TypeManager.bool_type &&
+ ((oper == Operator.LogicalAnd && (bool)lc.GetValue () == false) ||
+ (oper == Operator.LogicalOr && (bool)lc.GetValue () == true))) {
+
+ // TODO: make a sence to resolve unreachable expression as we do for statement
+ Report.Warning (429, 4, loc, "Unreachable expression code detected");
+ return left;
+ }
+
+ right = right.Resolve (ec);
+ if (right == null)
return null;
eclass = ExprClass.Value;
Constant rc = right as Constant;
- Constant lc = left as Constant;
-
if (rc != null & lc != null){
Expression e = ConstantFold.BinaryFold (
ec, oper, lc, rc, loc);
{
if (local_info == null) {
local_info = Block.GetLocalInfo (Name);
+
+ // is out param
+ if (lvalue_right_side == EmptyExpression.Null)
+ local_info.Used = true;
+
is_readonly = local_info.ReadOnly;
}
if (instance.GetType () != typeof (This)){
if (fe.InstanceExpression.Type.IsSubclassOf (TypeManager.mbr_type)){
- Report.Error (197, loc,
- "Can not pass a type that derives from MarshalByRefObject with out or ref");
+ Report.SymbolRelatedToPreviousError (fe.InstanceExpression.Type);
+ Report.Error (197, loc, "Cannot pass '{0}' as ref or out or take its address because it is a member of a marshal-by-reference class",
+ fe.Name);
return false;
}
}
"method `{0}' cannot be infered from " +
"the usage. Try specifying the type " +
"arguments explicitly.", report_name);
- break;
+ return null;
}
Error_WrongNumArguments (
return true;
}
- static bool InferType (Type pt, Type at, ref Type[] infered)
+ static bool InferType (Type pt, Type at, Type[] infered)
{
if (pt.IsGenericParameter && (pt.DeclaringMethod != null)) {
int pos = pt.GenericParameterPosition;
return true;
}
- if (!pt.ContainsGenericParameters)
- return true;
+ if (!pt.ContainsGenericParameters) {
+ if (at.ContainsGenericParameters)
+ return InferType (at, pt, infered);
+ else
+ return true;
+ }
if (at.IsArray) {
if (!pt.IsArray ||
(at.GetArrayRank () != pt.GetArrayRank ()))
return false;
- return InferType (pt.GetElementType (), at.GetElementType (),
- ref infered);
+ return InferType (pt.GetElementType (), at.GetElementType (), infered);
}
if (pt.IsArray) {
(pt.GetArrayRank () != at.GetArrayRank ()))
return false;
- return InferType (pt.GetElementType (), at.GetElementType (),
- ref infered);
+ return InferType (pt.GetElementType (), at.GetElementType (), infered);
}
- if (!at.IsGenericInstance)
- return false;
+ if (pt.IsByRef && at.IsByRef)
+ return InferType (pt.GetElementType (), at.GetElementType (), infered);
+ ArrayList list = new ArrayList ();
+ if (at.IsGenericInstance)
+ list.Add (at);
+ else {
+ for (Type bt = at.BaseType; bt != null; bt = bt.BaseType)
+ list.Add (bt);
+
+ list.AddRange (TypeManager.GetInterfaces (at));
+ }
+
+ bool found_one = false;
+
+ foreach (Type type in list) {
+ if (!type.IsGenericInstance)
+ continue;
+
+ Type[] infered_types = new Type [infered.Length];
+
+ if (!InferGenericInstance (pt, type, infered_types))
+ continue;
+
+ for (int i = 0; i < infered_types.Length; i++) {
+ if (infered [i] == null) {
+ infered [i] = infered_types [i];
+ continue;
+ }
+ if (infered [i] != infered_types [i])
+ return false;
+ }
+
+ found_one = true;
+ }
+
+ return found_one;
+ }
+
+ static bool InferGenericInstance (Type pt, Type at, Type[] infered_types)
+ {
Type[] at_args = at.GetGenericArguments ();
Type[] pt_args = pt.GetGenericArguments ();
if (at_args.Length != pt_args.Length)
return false;
- Type[] infered_types = new Type [at_args.Length];
-
- for (int i = 0; i < at_args.Length; i++)
- if (!InferType (pt_args [i], at_args [i], ref infered_types))
- return false;
-
- for (int i = 0; i < infered_types.Length; i++)
- if (infered_types [i] == null)
+ for (int i = 0; i < at_args.Length; i++) {
+ if (!InferType (pt_args [i], at_args [i], infered_types))
return false;
+ }
for (int i = 0; i < infered_types.Length; i++) {
- if (infered [i] == null) {
- infered [i] = infered_types [i];
- continue;
- }
-
- if (infered [i] != infered_types [i])
+ if (infered_types [i] == null)
return false;
}
Type pt = pd.ParameterType (i);
Type at = a.Type;
- if (!InferType (pt, at, ref infered_types))
+ if (!InferType (pt, at, infered_types))
return false;
}
if ((a.Expr is NullLiteral) || (a.Expr is MethodGroupExpr))
continue;
- if (!InferType (element_type, a.Type, ref infered_types))
+ if (!InferType (element_type, a.Type, infered_types))
return false;
}
return true;
}
- public static bool InferTypeArguments (Type[] param_types, Type[] arg_types,
- ref Type[] infered_types)
+ public static bool InferTypeArguments (Type[] param_types, Type[] arg_types, Type[] infered_types)
{
if (infered_types == null)
return false;
if (arg_types [i] == null)
continue;
- if (!InferType (param_types [i], arg_types [i],
- ref infered_types))
+ if (!InferType (param_types [i], arg_types [i], infered_types))
return false;
}
return false;
Type[] method_args = method.GetGenericArguments ();
+
+ bool is_open = false;
+ for (int i = 0; i < method_args.Length; i++) {
+ if (method_args [i].IsGenericParameter) {
+ is_open = true;
+ break;
+ }
+ }
+ if (!is_open)
+ return true;
+
Type[] infered_types = new Type [method_args.Length];
Type[] param_types = new Type [pd.Count];
arg_types [i] = a.Type;
}
- if (!InferTypeArguments (param_types, arg_types, ref infered_types))
+ if (!InferTypeArguments (param_types, arg_types, infered_types))
return false;
method = method.BindGenericParameters (infered_types);
arg_types [i] = apd.ParameterType (i);
}
- if (!InferTypeArguments (param_types, arg_types, ref infered_types))
+ if (!InferTypeArguments (param_types, arg_types, infered_types))
return false;
method = method.BindGenericParameters (infered_types);
}
}
+ if (mg.InstanceExpression != null)
+ mg.InstanceExpression.CheckMarshallByRefAccess (ec.ContainerType);
+
eclass = ExprClass.Value;
return this;
}
if (IsDelegate){
RequestedType = (new NewDelegate (type, Arguments, loc)).Resolve (ec);
if (RequestedType != null)
- if (!(RequestedType is NewDelegate))
+ if (!(RequestedType is DelegateCreation))
throw new Exception ("NewDelegate.Resolve returned a non NewDelegate: " + RequestedType.GetType ());
return RequestedType;
}
return RootContext.LookupType (ec.DeclSpace, sn.Name, true, loc) != null;
}
+ // TODO: possible optimalization
+ // Cache resolved constant result in FieldBuilder <-> expresion map
public static Expression ResolveMemberAccess (EmitContext ec, Expression member_lookup,
Expression left, Location loc,
Expression left_original)
FieldInfo fi = fe.FieldInfo.Mono_GetGenericFieldDefinition ();
Type decl_type = fi.DeclaringType;
- if (fi is FieldBuilder) {
+ bool is_emitted = fi is FieldBuilder;
+ Type t = fi.FieldType;
+
+ if (is_emitted) {
Const c = TypeManager.LookupConstant ((FieldBuilder) fi);
if (c != null) {
object real_value = ((Constant) c.Expr).GetValue ();
- return Constantify (real_value, fi.FieldType);
+ return Constantify (real_value, t);
}
}
+ // IsInitOnly is because of MS compatibility, I don't know why but they emit decimal constant as InitOnly
+ if (fi.IsInitOnly && !is_emitted && t == TypeManager.decimal_type) {
+ object[] attrs = fi.GetCustomAttributes (TypeManager.decimal_constant_attribute_type, false);
+ if (attrs.Length == 1)
+ return new DecimalConstant (((System.Runtime.CompilerServices.DecimalConstantAttribute) attrs [0]).Value);
+ }
+
if (fi.IsLiteral) {
- Type t = fi.FieldType;
-
object o;
- if (fi is FieldBuilder)
+ if (is_emitted)
o = TypeManager.GetValue ((FieldBuilder) fi);
else
o = fi.GetValue (fi);
return exp;
}
- if (fi.FieldType.IsPointer && !ec.InUnsafe){
+ if (t.IsPointer && !ec.InUnsafe){
UnsafeError (loc);
return null;
}
UnsafeError (loc);
return null;
}
+
+ instance_expr.CheckMarshallByRefAccess (ec.ContainerType);
eclass = ExprClass.IndexerAccess;
return this;
}
}
+ instance_expr.CheckMarshallByRefAccess (ec.ContainerType);
+
eclass = ExprClass.IndexerAccess;
return this;
}
loc = l;
}
+ public Expression Source {
+ get {
+ return source;
+ }
+ }
+
public override Expression DoResolve (EmitContext ec)
{
//
projects / mono.git / blobdiff