//
// Author:
// Miguel de Icaza (miguel@ximian.com)
+// Marek Safar (marek.safar@seznam.cz)
//
// (C) 2001, 2002, 2003 Ximian, Inc.
//
/// </summary>
public void Error (int error, string s)
{
- if (loc.IsNull)
- Report.Error (error, s);
- else
- Report.Error (error, loc, s);
+ Report.Error (error, loc, s);
}
- // Not nice but we have broken hierarchy
- public virtual void CheckMarshallByRefAccess (Type container) {}
+ // Not nice but we have broken hierarchy.
+ public virtual void CheckMarshalByRefAccess ()
+ {
+ }
+
+ public virtual bool GetAttributableValue (Type valueType, out object value)
+ {
+ Attribute.Error_AttributeArgumentNotValid (loc);
+ value = null;
+ return false;
+ }
public virtual string GetSignatureForError ()
{
must_do_cs1540_check = false; // by default we do not check for this
+ if (ma == MethodAttributes.Public)
+ return true;
+
//
// If only accessible to the current class or children
//
if (ma == MethodAttributes.Private)
- return invocation_type == mi.DeclaringType ||
+ return TypeManager.IsPrivateAccessible (invocation_type, mi.DeclaringType) ||
TypeManager.IsNestedChildOf (invocation_type, mi.DeclaringType);
- if (mi.DeclaringType.Assembly == invocation_type.Assembly) {
+ if (mi.DeclaringType.Assembly == invocation_type.Assembly ||
+ TypeManager.IsFriendAssembly (mi.DeclaringType.Assembly)) {
if (ma == MethodAttributes.Assembly || ma == MethodAttributes.FamORAssem)
return true;
} else {
// Family and FamANDAssem require that we derive.
// FamORAssem requires that we derive if in different assemblies.
- if (ma == MethodAttributes.Family ||
- ma == MethodAttributes.FamANDAssem ||
- ma == MethodAttributes.FamORAssem) {
- if (!TypeManager.IsNestedFamilyAccessible (invocation_type, mi.DeclaringType))
- return false;
+ if (!TypeManager.IsNestedFamilyAccessible (invocation_type, mi.DeclaringType))
+ return false;
- if (!TypeManager.IsNestedChildOf (invocation_type, mi.DeclaringType))
- must_do_cs1540_check = true;
-
- return true;
- }
+ if (!TypeManager.IsNestedChildOf (invocation_type, mi.DeclaringType))
+ must_do_cs1540_check = true;
return true;
}
// This is used if the expression should be resolved as a type or namespace name.
// the default implementation fails.
//
- public virtual FullNamedExpression ResolveAsTypeStep (EmitContext ec, bool silent)
+ public virtual FullNamedExpression ResolveAsTypeStep (IResolveContext ec, bool silent)
{
return null;
}
// value will be returned if the expression is not a type
// reference
//
- public TypeExpr ResolveAsTypeTerminal (EmitContext ec, bool silent)
+ public virtual TypeExpr ResolveAsTypeTerminal (IResolveContext ec, bool silent)
+ {
+ TypeExpr te = ResolveAsBaseTerminal (ec, silent);
+ if (te == null)
+ return null;
+
+ if (!silent) {
+ ObsoleteAttribute obsolete_attr = AttributeTester.GetObsoleteAttribute (te.Type);
+ if (obsolete_attr != null && !ec.IsInObsoleteScope) {
+ AttributeTester.Report_ObsoleteMessage (obsolete_attr, te.GetSignatureForError (), Location);
+ }
+ }
+
+ // Constrains don't need to be checked for overrides
+ GenericMethod gm = ec.GenericDeclContainer as GenericMethod;
+ if (gm != null && (gm.ModFlags & Modifiers.OVERRIDE) != 0) {
+ te.loc = loc;
+ return te;
+ }
+
+ ConstructedType ct = te as ConstructedType;
+ if ((ct != null) && !ct.CheckConstraints (ec))
+ return null;
+
+ return te;
+ }
+
+ public TypeExpr ResolveAsBaseTerminal (IResolveContext ec, bool silent)
{
int errors = Report.Errors;
TypeExpr te = fne as TypeExpr;
- if (!te.CheckAccessLevel (ec.DeclSpace)) {
+ if (!te.CheckAccessLevel (ec.DeclContainer)) {
+ Report.SymbolRelatedToPreviousError (te.Type);
ErrorIsInaccesible (loc, TypeManager.CSharpName (te.Type));
return null;
}
protected static void Error_CannotAccessProtected (Location loc, MemberInfo m, Type qualifier, Type container)
{
- Report.Error (1540, loc, "Cannot access protected member `{0}' via a qualifier of type `{1}';"
- + " the qualifier must be of type `{2}' (or derived from it)",
+ Report.Error (1540, loc, "Cannot access protected member `{0}' via a qualifier of type `{1}'."
+ + " The qualifier must be of type `{2}' or derived from it",
TypeManager.GetFullNameSignature (m),
TypeManager.CSharpName (qualifier),
TypeManager.CSharpName (container));
}
+ protected void Error_CannotAssign (string to, string roContext)
+ {
+ Report.Error (1656, loc, "Cannot assign to `{0}' because it is a `{1}'",
+ to, roContext);
+ }
+
+ public static void Error_VoidInvalidInTheContext (Location loc)
+ {
+ Report.Error (1547, loc, "Keyword `void' cannot be used in this context");
+ }
+
public virtual void Error_ValueCannotBeConverted (Location loc, Type target, bool expl)
{
- if (Type.Name == target.Name){
+ if (Type.FullName == target.FullName){
Report.ExtraInformation (loc,
String.Format (
"The type {0} has two conflicting definitions, one comes from {1} and the other from {2}",
- Type.Name, Type.Assembly.FullName, target.Assembly.FullName));
+ Type.FullName, Type.Assembly.FullName, target.Assembly.FullName));
}
Expression e = (this is EnumConstant) ? ((EnumConstant)this).Child : this;
bool b = Convert.ExplicitNumericConversion (e, target) != null;
- if (b || Convert.ExplicitReferenceConversionExists (Type, target) || Convert.ExplicitUnsafe (e, target) != null) {
+ if (b || Convert.ExplicitReferenceConversionExists (Type, target) ||
+ Convert.ExplicitUnsafe (e, target) != null || Convert.UserDefinedConversion (null, this, target, Location.Null, true) != null) {
Report.Error (266, loc, "Cannot implicitly convert type `{0}' to `{1}'. An explicit conversion exists (are you missing a cast?)",
TypeManager.CSharpName (Type), TypeManager.CSharpName (target));
return;
}
- if (Type != TypeManager.string_type && this is Constant && !(this is NullCast)) {
+ if (Type != TypeManager.string_type && this is Constant && !(this is EmptyConstantCast)) {
Report.Error (31, loc, "Constant value `{0}' cannot be converted to a `{1}'",
- GetSignatureForError (), TypeManager.CSharpName (target));
+ ((Constant)(this)).GetValue ().ToString (), TypeManager.CSharpName (target));
return;
}
TypeManager.CSharpName (type), name);
}
- ResolveFlags ExprClassToResolveFlags ()
+ protected static void Error_ValueAssignment (Location loc)
+ {
+ Report.Error (131, loc, "The left-hand side of an assignment must be a variable, a property or an indexer");
+ }
+
+ ResolveFlags ExprClassToResolveFlags
{
- switch (eclass) {
- case ExprClass.Type:
- case ExprClass.Namespace:
- return ResolveFlags.Type;
+ get {
+ switch (eclass) {
+ case ExprClass.Type:
+ case ExprClass.Namespace:
+ return ResolveFlags.Type;
- case ExprClass.MethodGroup:
- return ResolveFlags.MethodGroup;
+ case ExprClass.MethodGroup:
+ return ResolveFlags.MethodGroup;
- case ExprClass.Value:
- case ExprClass.Variable:
- case ExprClass.PropertyAccess:
- case ExprClass.EventAccess:
- case ExprClass.IndexerAccess:
- return ResolveFlags.VariableOrValue;
+ case ExprClass.Value:
+ case ExprClass.Variable:
+ case ExprClass.PropertyAccess:
+ case ExprClass.EventAccess:
+ case ExprClass.IndexerAccess:
+ return ResolveFlags.VariableOrValue;
- default:
- throw new Exception ("Expression " + GetType () +
- " ExprClass is Invalid after resolve");
+ default:
+ throw new Exception ("Expression " + GetType () +
+ " ExprClass is Invalid after resolve");
+ }
}
-
}
/// <summary>
if ((flags & ResolveFlags.MaskExprClass) == ResolveFlags.Type)
return ResolveAsTypeStep (ec, false);
- bool old_do_flow_analysis = ec.DoFlowAnalysis;
- bool old_omit_struct_analysis = ec.OmitStructFlowAnalysis;
+ bool do_flow_analysis = ec.DoFlowAnalysis;
+ bool omit_struct_analysis = ec.OmitStructFlowAnalysis;
if ((flags & ResolveFlags.DisableFlowAnalysis) != 0)
- ec.DoFlowAnalysis = false;
+ do_flow_analysis = false;
if ((flags & ResolveFlags.DisableStructFlowAnalysis) != 0)
- ec.OmitStructFlowAnalysis = true;
+ omit_struct_analysis = true;
Expression e;
- bool intermediate = (flags & ResolveFlags.Intermediate) == ResolveFlags.Intermediate;
- if (this is SimpleName)
- e = ((SimpleName) this).DoResolve (ec, intermediate);
-
- else
- e = DoResolve (ec);
-
- ec.DoFlowAnalysis = old_do_flow_analysis;
- ec.OmitStructFlowAnalysis = old_omit_struct_analysis;
+ using (ec.WithFlowAnalysis (do_flow_analysis, omit_struct_analysis)) {
+ if (this is SimpleName) {
+ bool intermediate = (flags & ResolveFlags.Intermediate) == ResolveFlags.Intermediate;
+ e = ((SimpleName) this).DoResolve (ec, intermediate);
+ } else {
+ e = DoResolve (ec);
+ }
+ }
if (e == null)
return null;
- if ((flags & e.ExprClassToResolveFlags ()) == 0) {
+ if ((flags & e.ExprClassToResolveFlags) == 0) {
e.Error_UnexpectedKind (flags, loc);
return null;
}
public Constant ResolveAsConstant (EmitContext ec, MemberCore mc)
{
Expression e = Resolve (ec);
- if (e != null) {
- Constant c = e as Constant;
- if (c != null)
- return c;
-
- EmptyCast empty = e as EmptyCast;
- if (empty != null) {
- c = empty.Child as Constant;
- if (c != null) {
- // TODO: not sure about this maybe there is easier way how to use EmptyCast
- if (e.Type.IsEnum)
- c.Type = e.Type;
-
- return c;
- }
- }
- }
+ if (e == null)
+ return null;
+
+ Constant c = e as Constant;
+ if (c != null)
+ return c;
Const.Error_ExpressionMustBeConstant (loc, mc.GetSignatureForError ());
return null;
public Expression ResolveLValue (EmitContext ec, Expression right_side, Location loc)
{
int errors = Report.Errors;
+ bool out_access = right_side == EmptyExpression.OutAccess;
+
Expression e = DoResolveLValue (ec, right_side);
+ if (e != null && out_access && !(e is IMemoryLocation)) {
+ // FIXME: There's no problem with correctness, the 'Expr = null' handles that.
+ // Enabling this 'throw' will "only" result in deleting useless code elsewhere,
+
+ //throw new InternalErrorException ("ResolveLValue didn't return an IMemoryLocation: " +
+ // e.GetType () + " " + e.GetSignatureForError ());
+ e = null;
+ }
+
if (e == null) {
- if (errors == Report.Errors)
- Report.Error (131, loc, "The left-hand side of an assignment or mutating operation must be a variable, property or indexer");
+ if (errors == Report.Errors) {
+ if (out_access)
+ Report.Error (1510, loc, "A ref or out argument must be an assignable variable");
+ else
+ Error_ValueAssignment (loc);
+ }
return null;
}
- if (e != null){
- if (e.eclass == ExprClass.Invalid)
- throw new Exception ("Expression " + e +
- " ExprClass is Invalid after resolve");
-
- if (e.eclass == ExprClass.MethodGroup) {
- ((MethodGroupExpr) e).ReportUsageError ();
- return null;
- }
+ if (e.eclass == ExprClass.Invalid)
+ throw new Exception ("Expression " + e + " ExprClass is Invalid after resolve");
- if (e.type == null)
- throw new Exception ("Expression " + e +
- " did not set its type after Resolve");
+ if (e.eclass == ExprClass.MethodGroup) {
+ ((MethodGroupExpr) e).ReportUsageError ();
+ return null;
}
+ if ((e.type == null) && !(e is ConstructedType))
+ throw new Exception ("Expression " + e + " did not set its type after Resolve");
+
return e;
}
-
+
/// <summary>
/// Emits the code for the expression
/// </summary>
/// Returns a fully formed expression after a MemberLookup
/// </summary>
///
- public static Expression ExprClassFromMemberInfo (EmitContext ec, MemberInfo mi, Location loc)
+ public static Expression ExprClassFromMemberInfo (Type containerType, MemberInfo mi, Location loc)
{
if (mi is EventInfo)
return new EventExpr ((EventInfo) mi, loc);
else if (mi is FieldInfo)
return new FieldExpr ((FieldInfo) mi, loc);
else if (mi is PropertyInfo)
- return new PropertyExpr (ec, (PropertyInfo) mi, loc);
+ return new PropertyExpr (containerType, (PropertyInfo) mi, loc);
else if (mi is Type){
return new TypeExpression ((System.Type) mi, loc);
}
// FIXME: Potential optimization, have a static ArrayList
//
- public static Expression MemberLookup (EmitContext ec, Type queried_type, string name,
+ public static Expression MemberLookup (Type container_type, Type queried_type, string name,
MemberTypes mt, BindingFlags bf, Location loc)
{
- return MemberLookup (ec, ec.ContainerType, null, queried_type, name, mt, bf, loc);
+ return MemberLookup (container_type, null, queried_type, name, mt, bf, loc);
}
//
// `qualifier_type' or null to lookup members in the current class.
//
- public static Expression MemberLookup (EmitContext ec, Type container_type,
+ public static Expression MemberLookup (Type container_type,
Type qualifier_type, Type queried_type,
string name, MemberTypes mt,
BindingFlags bf, Location loc)
if (mi == null)
return null;
- int count = mi.Length;
+ if (mi.Length > 1) {
+ bool is_interface = qualifier_type != null && qualifier_type.IsInterface;
+ MemberInfo non_method = null;
+ ArrayList methods = new ArrayList (2);
+
+ foreach (MemberInfo m in mi) {
+ if (m is MethodBase) {
+ methods.Add (m);
+ continue;
+ }
+
+ if (non_method == null) {
+ non_method = m;
+ continue;
+ }
+
+ Report.SymbolRelatedToPreviousError (m);
+ Report.SymbolRelatedToPreviousError (non_method);
+ Report.Error (229, loc, "Ambiguity between `{0}' and `{1}'",
+ TypeManager.GetFullNameSignature (m), TypeManager.GetFullNameSignature (non_method));
+ return null;
+ }
+
+ if (methods.Count == 0)
+ return null;
+
+ if (non_method != null) {
+ MethodBase method = (MethodBase) methods [0];
+
+ if (method.DeclaringType == non_method.DeclaringType) {
+ // Cannot happen with C# code, but is valid in IL
+ Report.SymbolRelatedToPreviousError (method);
+ Report.SymbolRelatedToPreviousError (non_method);
+ Report.Error (229, loc, "Ambiguity between `{0}' and `{1}'",
+ TypeManager.GetFullNameSignature (non_method),
+ TypeManager.CSharpSignature (method));
+ return null;
+ }
+
+ if (is_interface) {
+ Report.SymbolRelatedToPreviousError (method);
+ Report.SymbolRelatedToPreviousError (non_method);
+ Report.Warning (467, 2, loc, "Ambiguity between method `{0}' and non-method `{1}'. Using method `{0}'",
+ TypeManager.CSharpSignature (method), TypeManager.GetFullNameSignature (non_method));
+ }
+ }
+
+ return new MethodGroupExpr (methods, loc);
+ }
if (mi [0] is MethodBase)
return new MethodGroupExpr (mi, loc);
- if (count > 1)
- return null;
-
- return ExprClassFromMemberInfo (ec, mi [0], loc);
+ return ExprClassFromMemberInfo (container_type, mi [0], loc);
}
public const MemberTypes AllMemberTypes =
BindingFlags.Static |
BindingFlags.Instance;
- public static Expression MemberLookup (EmitContext ec, Type queried_type,
+ public static Expression MemberLookup (Type container_type, Type queried_type,
string name, Location loc)
{
- return MemberLookup (ec, ec.ContainerType, null, queried_type, name,
+ return MemberLookup (container_type, null, queried_type, name,
AllMemberTypes, AllBindingFlags, loc);
}
- public static Expression MemberLookup (EmitContext ec, Type qualifier_type,
+ public static Expression MemberLookup (Type container_type, Type qualifier_type,
Type queried_type, string name, Location loc)
{
- return MemberLookup (ec, ec.ContainerType, qualifier_type, queried_type,
+ return MemberLookup (container_type, qualifier_type, queried_type,
name, AllMemberTypes, AllBindingFlags, loc);
}
- public static Expression MethodLookup (EmitContext ec, Type queried_type,
+ public static Expression MethodLookup (Type container_type, Type queried_type,
string name, Location loc)
{
- return MemberLookup (ec, ec.ContainerType, null, queried_type, name,
+ return MemberLookup (container_type, null, queried_type, name,
MemberTypes.Method, AllBindingFlags, loc);
}
int errors = Report.Errors;
- e = MemberLookup (ec, ec.ContainerType, qualifier_type, queried_type, name, mt, bf, loc);
+ e = MemberLookup (ec.ContainerType, qualifier_type, queried_type, name, mt, bf, loc);
if (e == null && errors == Report.Errors)
// No errors were reported by MemberLookup, but there was an error.
- MemberLookupFailed (ec, qualifier_type, queried_type, name, null, true, loc);
+ MemberLookupFailed (ec.ContainerType, qualifier_type, queried_type, name, null, true, loc);
return e;
}
- public static void MemberLookupFailed (EmitContext ec, Type qualifier_type,
+ public static void MemberLookupFailed (Type container_type, Type qualifier_type,
Type queried_type, string name,
string class_name, bool complain_if_none_found,
Location loc)
if (qualifier_type == null) {
Report.Error (38, loc, "Cannot access a nonstatic member of outer type `{0}' via nested type `{1}'",
TypeManager.CSharpName (m.DeclaringType),
- TypeManager.CSharpName (ec.ContainerType));
+ TypeManager.CSharpName (container_type));
- } else if (qualifier_type != ec.ContainerType &&
- TypeManager.IsNestedFamilyAccessible (ec.ContainerType, declaring_type)) {
+ } else if (qualifier_type != container_type &&
+ TypeManager.IsNestedFamilyAccessible (container_type, declaring_type)) {
// Although a derived class can access protected members of
// its base class it cannot do so through an instance of the
// base class (CS1540). If the qualifier_type is a base of the
// ec.ContainerType and the lookup succeeds with the latter one,
// then we are in this situation.
- Error_CannotAccessProtected (loc, m, qualifier_type, ec.ContainerType);
+ Error_CannotAccessProtected (loc, m, qualifier_type, container_type);
} else {
ErrorIsInaccesible (loc, TypeManager.GetFullNameSignature (m));
}
return;
}
- MemberInfo[] lookup = TypeManager.MemberLookup (queried_type, null, queried_type,
- AllMemberTypes, AllBindingFlags |
- BindingFlags.NonPublic, name, null);
+ MemberInfo[] lookup = null;
+ if (queried_type == null) {
+ class_name = "global::";
+ } else {
+ lookup = TypeManager.MemberLookup (queried_type, null, queried_type,
+ AllMemberTypes, AllBindingFlags |
+ BindingFlags.NonPublic, name, null);
+ }
if (lookup == null) {
if (!complain_if_none_found)
return;
}
+ if (TypeManager.MemberLookup (queried_type, null, queried_type,
+ AllMemberTypes, AllBindingFlags |
+ BindingFlags.NonPublic, name, null) == null) {
+ if ((lookup.Length == 1) && (lookup [0] is Type)) {
+ Type t = (Type) lookup [0];
+
+ Report.Error (305, loc,
+ "Using the generic type `{0}' " +
+ "requires {1} type arguments",
+ TypeManager.CSharpName (t),
+ TypeManager.GetNumberOfTypeArguments (t).ToString ());
+ return;
+ }
+ }
+
MemberList ml = TypeManager.FindMembers (queried_type, MemberTypes.Constructor,
- BindingFlags.Static | BindingFlags.Instance | BindingFlags.Public | BindingFlags.DeclaredOnly, null, null);
+ BindingFlags.Static | BindingFlags.Instance | BindingFlags.Public | BindingFlags.DeclaredOnly, null, null);
if (name == ".ctor" && ml.Count == 0)
{
- Report.Error (143, loc, String.Format ("The type `{0}' has no constructors defined", TypeManager.CSharpName (queried_type)));
+ Report.Error (143, loc, "The type `{0}' has no constructors defined", TypeManager.CSharpName (queried_type));
return;
}
+ Report.SymbolRelatedToPreviousError (lookup [0]);
ErrorIsInaccesible (loc, TypeManager.GetFullNameSignature (lookup [0]));
}
/// Returns an expression that can be used to invoke operator true
/// on the expression if it exists.
/// </summary>
- static public StaticCallExpr GetOperatorTrue (EmitContext ec, Expression e, Location loc)
+ static public Expression GetOperatorTrue (EmitContext ec, Expression e, Location loc)
{
return GetOperatorTrueOrFalse (ec, e, true, loc);
}
/// Returns an expression that can be used to invoke operator false
/// on the expression if it exists.
/// </summary>
- static public StaticCallExpr GetOperatorFalse (EmitContext ec, Expression e, Location loc)
+ static public Expression GetOperatorFalse (EmitContext ec, Expression e, Location loc)
{
return GetOperatorTrueOrFalse (ec, e, false, loc);
}
- static StaticCallExpr GetOperatorTrueOrFalse (EmitContext ec, Expression e, bool is_true, Location loc)
+ static Expression GetOperatorTrueOrFalse (EmitContext ec, Expression e, bool is_true, Location loc)
{
MethodBase method;
Expression operator_group;
- operator_group = MethodLookup (ec, e.Type, is_true ? "op_True" : "op_False", loc);
+#if GMCS_SOURCE
+ if (TypeManager.IsNullableType (e.Type))
+ return new Nullable.OperatorTrueOrFalse (e, is_true, loc).Resolve (ec);
+#endif
+
+ operator_group = MethodLookup (ec.ContainerType, e.Type, is_true ? "op_True" : "op_False", loc);
if (operator_group == null)
return null;
/// <summary>
/// Reports that we were expecting `expr' to be of class `expected'
/// </summary>
- public void Error_UnexpectedKind (EmitContext ec, string expected, Location loc)
+ public void Error_UnexpectedKind (DeclSpace ds, string expected, Location loc)
{
- Error_UnexpectedKind (ec, expected, ExprClassName, loc);
+ Error_UnexpectedKind (ds, expected, ExprClassName, loc);
}
- public void Error_UnexpectedKind (EmitContext ec, string expected, string was, Location loc)
+ public void Error_UnexpectedKind (DeclSpace ds, string expected, string was, Location loc)
{
string name = GetSignatureForError ();
- if (ec != null)
- name = ec.DeclSpace.GetSignatureForError () + '.' + name;
+ if (ds != null)
+ name = ds.GetSignatureForError () + '.' + name;
Report.Error (118, loc, "`{0}' is a `{1}' but a `{2}' was expected",
name, was, expected);
ig.Emit (OpCodes.Ldind_Ref);
else
LoadFromPtr (ig, TypeManager.EnumToUnderlying (t));
- } else if (t.IsValueType)
+ } else if (t.IsValueType || TypeManager.IsGenericParameter (t))
ig.Emit (OpCodes.Ldobj, t);
else if (t.IsPointer)
ig.Emit (OpCodes.Ldind_I);
- else
+ else
ig.Emit (OpCodes.Ldind_Ref);
}
ig.Emit (OpCodes.Stind_I1);
else if (type == TypeManager.intptr_type)
ig.Emit (OpCodes.Stind_I);
- else if (type.IsValueType)
+ else if (type.IsValueType || TypeManager.IsGenericParameter (type))
ig.Emit (OpCodes.Stobj, type);
else
ig.Emit (OpCodes.Stind_Ref);
{
Expression target;
- bool old_checked = ec.CheckState;
- ec.CheckState = true;
-
- target = Convert.ImplicitConversion (ec, source, TypeManager.int32_type, loc);
- if (target == null){
- target = Convert.ImplicitConversion (ec, source, TypeManager.uint32_type, loc);
- if (target == null){
+ using (ec.With (EmitContext.Flags.CheckState, true)) {
+ target = Convert.ImplicitConversion (ec, source, TypeManager.int32_type, loc);
+ if (target == null)
+ target = Convert.ImplicitConversion (ec, source, TypeManager.uint32_type, loc);
+ if (target == null)
target = Convert.ImplicitConversion (ec, source, TypeManager.int64_type, loc);
- if (target == null){
- target = Convert.ImplicitConversion (ec, source, TypeManager.uint64_type, loc);
- if (target == null)
- source.Error_ValueCannotBeConverted (loc, TypeManager.int32_type, false);
- }
+ if (target == null)
+ target = Convert.ImplicitConversion (ec, source, TypeManager.uint64_type, loc);
+
+ if (target == null) {
+ source.Error_ValueCannotBeConverted (loc, TypeManager.int32_type, false);
+ return null;
}
- }
- ec.CheckState = old_checked;
+ }
//
// Only positive constants are allowed at compile time
///
/// </summary>
public class EmptyCast : Expression {
- protected Expression child;
-
- public Expression Child {
- get {
- return child;
- }
- }
+ protected readonly Expression child;
public EmptyCast (Expression child, Type return_type)
{
{
child.Emit (ec);
}
+
+ public override bool GetAttributableValue (Type valueType, out object value)
+ {
+ return child.GetAttributableValue (valueType, out value);
+ }
+
}
+
+ /// <summary>
+ /// Performs a cast using an operator (op_Explicit or op_Implicit)
+ /// </summary>
+ public class OperatorCast : EmptyCast {
+ MethodInfo conversion_operator;
+ bool find_explicit;
+
+ public OperatorCast (Expression child, Type target_type) : this (child, target_type, false) {}
+
+ public OperatorCast (Expression child, Type target_type, bool find_explicit)
+ : base (child, target_type)
+ {
+ this.find_explicit = find_explicit;
+ }
+
+ // Returns the implicit operator that converts from
+ // 'child.Type' to our target type (type)
+ MethodInfo GetConversionOperator (bool find_explicit)
+ {
+ string operator_name = find_explicit ? "op_Explicit" : "op_Implicit";
+
+ MemberInfo [] mi;
+
+ mi = TypeManager.MemberLookup (child.Type, child.Type, child.Type, MemberTypes.Method,
+ BindingFlags.Static | BindingFlags.Public, operator_name, null);
+
+ if (mi == null){
+ mi = TypeManager.MemberLookup (type, type, type, MemberTypes.Method,
+ BindingFlags.Static | BindingFlags.Public, operator_name, null);
+ }
+
+ foreach (MethodInfo oper in mi) {
+ ParameterData pd = TypeManager.GetParameterData (oper);
+
+ if (pd.ParameterType (0) == child.Type && oper.ReturnType == type)
+ return oper;
+ }
+
+ return null;
+
+
+ }
+ public override void Emit (EmitContext ec)
+ {
+ ILGenerator ig = ec.ig;
+
+ child.Emit (ec);
+ conversion_operator = GetConversionOperator (find_explicit);
+
+ if (conversion_operator == null)
+ throw new InternalErrorException ("Outer conversion routine is out of sync");
+
+ ig.Emit (OpCodes.Call, conversion_operator);
+ }
+
+ }
+
/// <summary>
/// This is a numeric cast to a Decimal
/// </summary>
public class CastToDecimal : EmptyCast {
-
MethodInfo conversion_operator;
public CastToDecimal (Expression child)
}
}
- //
+
+ //
+ // Constant specialization of EmptyCast.
// We need to special case this since an empty cast of
- // a NullLiteral is still a Constant
+ // a constant is still a constant.
//
- public class NullCast : Constant {
- public Constant child;
-
- public NullCast (Constant child, Type return_type):
- base (Location.Null)
+ public class EmptyConstantCast : Constant
+ {
+ public readonly Constant child;
+
+ public EmptyConstantCast(Constant child, Type type)
+ : base (child.Location)
{
eclass = child.eclass;
- type = return_type;
this.child = child;
+ this.type = type;
}
- override public string AsString ()
+ public override string AsString ()
{
- return "null";
+ return child.AsString ();
}
public override object GetValue ()
{
- return null;
+ return child.GetValue ();
}
- public override Expression DoResolve (EmitContext ec)
+ public override Constant Reduce (bool inCheckedContext, Type target_type)
{
- // This should never be invoked, we are born in fully
- // initialized state.
-
- return this;
+ return child.Reduce (inCheckedContext, target_type);
}
- public override void Emit (EmitContext ec)
+ public override Constant Increment ()
{
- child.Emit (ec);
+ return child.Increment ();
}
- public override Constant Increment ()
+ public override bool IsDefaultValue
{
- throw new NotSupportedException ();
+ get { return child.IsDefaultValue; }
}
- public override bool IsDefaultValue {
- get {
- throw new NotImplementedException ();
- }
+ public override bool IsNegative
+ {
+ get { return child.IsNegative; }
}
- public override bool IsNegative {
- get {
- return false;
- }
+ public override void Emit (EmitContext ec)
+ {
+ child.Emit (ec);
}
- public override Constant Reduce (EmitContext ec, Type target_type)
+ public override Constant ToType (Type type)
{
- if (type == target_type)
- return child.Reduce (ec, target_type);
-
- return null;
+ return child.ToType (type);
}
-
}
Child.Emit (ec);
}
+ public override bool GetAttributableValue (Type valueType, out object value)
+ {
+ value = GetTypedValue ();
+ return true;
+ }
+
public override string GetSignatureForError()
{
return TypeManager.CSharpName (Type);
}
}
- public override Constant Reduce(EmitContext ec, Type target_type)
+ public override Constant Reduce(bool inCheckedContext, Type target_type)
{
if (Child.Type == target_type)
return Child;
- return Child.Reduce (ec, target_type);
+ return Child.Reduce (inCheckedContext, target_type);
}
- public override Constant ToType (Type type, Location loc)
+ public override Constant ToType (Type type)
{
if (Type == type) {
// This is workaround of mono bug. It can be removed when the latest corlib spreads enough
return this;
if (type.UnderlyingSystemType != Child.Type)
- Child = Child.ToType (type.UnderlyingSystemType, loc);
+ Child = Child.ToType (type.UnderlyingSystemType);
return this;
}
- if (!Convert.ImplicitStandardConversionExists (Convert.ConstantEC, this, type)){
- Error_ValueCannotBeConverted (loc, type, false);
+ if (!Convert.ImplicitStandardConversionExists (this, type)){
return null;
}
- return Child.ToType (type, loc);
+ return Child.ToType (type);
}
}
return this;
}
+ public override Expression DoResolveLValue (EmitContext ec, Expression right_side)
+ {
+ if (right_side == EmptyExpression.LValueMemberAccess || right_side == EmptyExpression.LValueMemberOutAccess)
+ Report.Error (445, loc, "Cannot modify the result of an unboxing conversion");
+ return base.DoResolveLValue (ec, right_side);
+ }
+
public override void Emit (EmitContext ec)
{
Type t = type;
ILGenerator ig = ec.ig;
base.Emit (ec);
- ig.Emit (OpCodes.Unbox, t);
+#if GMCS_SOURCE
+ if (t.IsGenericParameter || t.IsGenericType && t.IsValueType)
+ ig.Emit (OpCodes.Unbox_Any, t);
+ else
+#endif
+ {
+ ig.Emit (OpCodes.Unbox, t);
- LoadFromPtr (ig, t);
+ LoadFromPtr (ig, t);
+ }
}
}
{
base.Emit (ec);
- ec.ig.Emit (OpCodes.Castclass, type);
- }
-
+ if (TypeManager.IsGenericParameter (child.Type))
+ ec.ig.Emit (OpCodes.Box, child.Type);
+
+#if GMCS_SOURCE
+ if (type.IsGenericParameter)
+ ec.ig.Emit (OpCodes.Unbox_Any, type);
+ else
+#endif
+ ec.ig.Emit (OpCodes.Castclass, type);
+ }
}
/// <summary>
/// </summary>
public class SimpleName : Expression {
public string Name;
+ public readonly TypeArguments Arguments;
bool in_transit;
public SimpleName (string name, Location l)
loc = l;
}
+ public SimpleName (string name, TypeArguments args, Location l)
+ {
+ Name = name;
+ Arguments = args;
+ loc = l;
+ }
+
+ public SimpleName (string name, TypeParameter[] type_params, Location l)
+ {
+ Name = name;
+ loc = l;
+
+ Arguments = new TypeArguments (l);
+ foreach (TypeParameter type_param in type_params)
+ Arguments.Add (new TypeParameterExpr (type_param, l));
+ }
+
+ public static string RemoveGenericArity (string name)
+ {
+ int start = 0;
+ StringBuilder sb = new StringBuilder ();
+ while (start < name.Length) {
+ int pos = name.IndexOf ('`', start);
+ if (pos < 0) {
+ sb.Append (name.Substring (start));
+ break;
+ }
+
+ sb.Append (name.Substring (start, pos-start));
+
+ pos++;
+ while ((pos < name.Length) && Char.IsNumber (name [pos]))
+ pos++;
+
+ start = pos;
+ }
+
+ return sb.ToString ();
+ }
+
+ public SimpleName GetMethodGroup ()
+ {
+ return new SimpleName (RemoveGenericArity (Name), Arguments, loc);
+ }
+
public static void Error_ObjectRefRequired (EmitContext ec, Location l, string name)
{
if (ec.IsFieldInitializer)
Report.Error (236, l,
"A field initializer cannot reference the nonstatic field, method, or property `{0}'",
name);
- else {
- if (name.LastIndexOf ('.') > 0)
- name = name.Substring (name.LastIndexOf ('.') + 1);
-
+ else
Report.Error (
120, l, "`{0}': An object reference is required for the nonstatic field, method or property",
name);
- }
}
public bool IdenticalNameAndTypeName (EmitContext ec, Expression resolved_to, Location loc)
{
return resolved_to != null && resolved_to.Type != null &&
resolved_to.Type.Name == Name &&
- (ec.DeclSpace.LookupType (Name, loc, /* ignore_cs0104 = */ true) != null);
+ (ec.DeclContainer.LookupType (Name, loc, /* ignore_cs0104 = */ true) != null);
}
public override Expression DoResolve (EmitContext ec)
return SimpleNameResolve (ec, null, intermediate);
}
- public override FullNamedExpression ResolveAsTypeStep (EmitContext ec, bool silent)
+ private bool IsNestedChild (Type t, Type parent)
{
- int errors = Report.Errors;
- FullNamedExpression fne = ec.DeclSpace.LookupType (Name, loc, /*ignore_cs0104=*/ false);
+ if (parent == null)
+ return false;
+
+ while (parent != null) {
+ parent = TypeManager.DropGenericTypeArguments (parent);
+ if (TypeManager.IsNestedChildOf (t, parent))
+ return true;
+
+ parent = parent.BaseType;
+ }
+
+ return false;
+ }
+
+ FullNamedExpression ResolveNested (IResolveContext ec, Type t)
+ {
+ if (!TypeManager.IsGenericTypeDefinition (t))
+ return null;
+
+ DeclSpace ds = ec.DeclContainer;
+ while (ds != null) {
+ if (IsNestedChild (t, ds.TypeBuilder))
+ break;
+
+ ds = ds.Parent;
+ }
+
+ if (ds == null)
+ return null;
+
+ Type[] gen_params = TypeManager.GetTypeArguments (t);
+
+ int arg_count = Arguments != null ? Arguments.Count : 0;
+
+ for (; (ds != null) && ds.IsGeneric; ds = ds.Parent) {
+ if (arg_count + ds.CountTypeParameters == gen_params.Length) {
+ TypeArguments new_args = new TypeArguments (loc);
+ foreach (TypeParameter param in ds.TypeParameters)
+ new_args.Add (new TypeParameterExpr (param, loc));
+
+ if (Arguments != null)
+ new_args.Add (Arguments);
+
+ return new ConstructedType (t, new_args, loc);
+ }
+ }
+
+ return null;
+ }
+
+ public override FullNamedExpression ResolveAsTypeStep (IResolveContext ec, bool silent)
+ {
+ FullNamedExpression fne = ec.GenericDeclContainer.LookupGeneric (Name, loc);
if (fne != null)
+ return fne.ResolveAsTypeStep (ec, silent);
+
+ int errors = Report.Errors;
+ fne = ec.DeclContainer.LookupType (Name, loc, /*ignore_cs0104=*/ false);
+
+ if (fne != null) {
+ if (fne.Type == null)
+ return fne;
+
+ FullNamedExpression nested = ResolveNested (ec, fne.Type);
+ if (nested != null)
+ return nested.ResolveAsTypeStep (ec, false);
+
+ if (Arguments != null) {
+ ConstructedType ct = new ConstructedType (fne, Arguments, loc);
+ return ct.ResolveAsTypeStep (ec, false);
+ }
+
return fne;
+ }
+
+ if (silent || errors != Report.Errors)
+ return null;
+
+ MemberCore mc = ec.DeclContainer.GetDefinition (Name);
+ if (mc != null) {
+ Error_UnexpectedKind (ec.DeclContainer, "type", GetMemberType (mc), loc);
+ return null;
+ }
+
+ string ns = ec.DeclContainer.NamespaceEntry.NS.Name;
+ string fullname = (ns.Length > 0) ? ns + "." + Name : Name;
+ foreach (Assembly a in RootNamespace.Global.Assemblies) {
+ Type type = a.GetType (fullname);
+ if (type != null) {
+ Report.SymbolRelatedToPreviousError (type);
+ Expression.ErrorIsInaccesible (loc, fullname);
+ return null;
+ }
+ }
- if (silent || errors != Report.Errors)
+ Type t = ec.DeclContainer.NamespaceEntry.NS.LookForAnyGenericType (Name);
+ if (t != null) {
+ Namespace.Error_InvalidNumberOfTypeArguments (t, loc);
return null;
-
- MemberCore mc = ec.DeclSpace.GetDefinition (Name);
- if (mc != null) {
- Error_UnexpectedKind (ec, "type", GetMemberType (mc), loc);
- } else {
- NamespaceEntry.Error_NamespaceNotFound (loc, Name);
}
+ NamespaceEntry.Error_NamespaceNotFound (loc, Name);
return null;
}
if (current_block != null){
LocalInfo vi = current_block.GetLocalInfo (Name);
if (vi != null){
+ if (Arguments != null) {
+ Report.Error (307, loc,
+ "The variable `{0}' cannot be used with type arguments",
+ Name);
+ return null;
+ }
+
LocalVariableReference var = new LocalVariableReference (ec.CurrentBlock, Name, loc);
if (right_side != null) {
return var.ResolveLValue (ec, right_side, loc);
ParameterReference pref = current_block.Toplevel.GetParameterReference (Name, loc);
if (pref != null) {
+ if (Arguments != null) {
+ Report.Error (307, loc,
+ "The variable `{0}' cannot be used with type arguments",
+ Name);
+ return null;
+ }
+
if (right_side != null)
return pref.ResolveLValue (ec, right_side, loc);
else
// Stage 2: Lookup members
//
- DeclSpace lookup_ds = ec.DeclSpace;
+ DeclSpace lookup_ds = ec.DeclContainer;
Type almost_matched_type = null;
ArrayList almost_matched = null;
do {
if (lookup_ds.TypeBuilder == null)
break;
- e = MemberLookup (ec, lookup_ds.TypeBuilder, Name, loc);
+ e = MemberLookup (ec.ContainerType, lookup_ds.TypeBuilder, Name, loc);
if (e != null)
break;
lookup_ds =lookup_ds.Parent;
} while (lookup_ds != null);
-
+
if (e == null && ec.ContainerType != null)
- e = MemberLookup (ec, ec.ContainerType, Name, loc);
+ e = MemberLookup (ec.ContainerType, ec.ContainerType, Name, loc);
if (e == null) {
if (almost_matched == null && almostMatchedMembers.Count > 0) {
almostMatchedMembers = almost_matched;
if (almost_matched_type == null)
almost_matched_type = ec.ContainerType;
- MemberLookupFailed (ec, null, almost_matched_type, ((SimpleName) this).Name, ec.DeclSpace.Name, true, loc);
+ MemberLookupFailed (ec.ContainerType, null, almost_matched_type, ((SimpleName) this).Name, ec.DeclContainer.Name, true, loc);
return null;
}
- if (e is TypeExpr)
- return e;
+ if (e is TypeExpr) {
+ if (Arguments == null)
+ return e;
+
+ ConstructedType ct = new ConstructedType (
+ (FullNamedExpression) e, Arguments, loc);
+ return ct.ResolveAsTypeStep (ec, false);
+ }
if (e is MemberExpr) {
MemberExpr me = (MemberExpr) e;
if (!me.IsStatic &&
(!intermediate || !IdenticalNameAndTypeName (ec, me, loc))) {
Error_ObjectRefRequired (ec, loc, me.GetSignatureForError ());
- return null;
+ return EmptyExpression.Null;
}
//
if (me == null)
return e;
- if (!me.IsStatic &&
+ if (Arguments != null) {
+ MethodGroupExpr mg = me as MethodGroupExpr;
+ if (mg == null)
+ return null;
+
+ return mg.ResolveGeneric (ec, Arguments);
+ }
+
+ if (!me.IsStatic && (me.InstanceExpression != null) &&
TypeManager.IsNestedFamilyAccessible (me.InstanceExpression.Type, me.DeclaringType) &&
me.InstanceExpression.Type != me.DeclaringType &&
- !me.InstanceExpression.Type.IsSubclassOf (me.DeclaringType) &&
+ !TypeManager.IsFamilyAccessible (me.InstanceExpression.Type, me.DeclaringType) &&
(!intermediate || !IdenticalNameAndTypeName (ec, e, loc))) {
Report.Error (38, loc, "Cannot access a nonstatic member of outer type `{0}' via nested type `{1}'",
TypeManager.CSharpName (me.DeclaringType), TypeManager.CSharpName (me.InstanceExpression.Type));
Error (103, "The name `" + Name +
"' does not exist in the class `" +
- ec.DeclSpace.Name + "'");
+ ec.DeclContainer.Name + "'");
}
public override string ToString ()
/// section 10.8.1 (Fully Qualified Names).
/// </summary>
public abstract class FullNamedExpression : Expression {
- public override FullNamedExpression ResolveAsTypeStep (EmitContext ec, bool silent)
+ public override FullNamedExpression ResolveAsTypeStep (IResolveContext ec, bool silent)
{
return this;
}
/// Expression that evaluates to a type
/// </summary>
public abstract class TypeExpr : FullNamedExpression {
- override public FullNamedExpression ResolveAsTypeStep (EmitContext ec, bool silent)
+ override public FullNamedExpression ResolveAsTypeStep (IResolveContext ec, bool silent)
{
TypeExpr t = DoResolveAsTypeStep (ec);
if (t == null)
return true;
}
- public abstract TypeExpr DoResolveAsTypeStep (EmitContext ec);
-
- public Type ResolveType (EmitContext ec)
- {
- TypeExpr t = ResolveAsTypeTerminal (ec, false);
- if (t == null)
- return null;
-
- if (ec.TestObsoleteMethodUsage) {
- ObsoleteAttribute obsolete_attr = AttributeTester.GetObsoleteAttribute (t.Type);
- if (obsolete_attr != null) {
- AttributeTester.Report_ObsoleteMessage (obsolete_attr, Name, Location);
- }
- }
-
- return t.Type;
- }
+ protected abstract TypeExpr DoResolveAsTypeStep (IResolveContext ec);
public abstract string Name {
get;
loc = l;
}
- public override TypeExpr DoResolveAsTypeStep (EmitContext ec)
+ protected override TypeExpr DoResolveAsTypeStep (IResolveContext ec)
+ {
+ return this;
+ }
+
+ public override TypeExpr ResolveAsTypeTerminal (IResolveContext ec, bool silent)
{
return this;
}
/// by the parser to setup the core types. A TypeLookupExpression is always
/// classified as a type.
/// </summary>
- public class TypeLookupExpression : TypeExpr {
- string name;
+ public sealed class TypeLookupExpression : TypeExpr {
+ readonly string name;
public TypeLookupExpression (string name)
{
this.name = name;
+ eclass = ExprClass.Type;
}
- static readonly char [] dot_array = { '.' };
- public override TypeExpr DoResolveAsTypeStep (EmitContext ec)
+ public override TypeExpr ResolveAsTypeTerminal (IResolveContext ec, bool silent)
{
- if (type != null)
- return this;
+ // It's null for corlib compilation only
+ if (type == null)
+ return DoResolveAsTypeStep (ec);
+ return this;
+ }
+
+ static readonly char [] dot_array = { '.' };
+ protected override TypeExpr DoResolveAsTypeStep (IResolveContext ec)
+ {
// If name is of the form `N.I', first lookup `N', then search a member `I' in it.
string rest = null;
string lookup_name = name;
lookup_name = name.Substring (0, pos);
}
- FullNamedExpression resolved = RootNamespace.Global.Lookup (ec.DeclSpace, lookup_name, Location.Null);
+ FullNamedExpression resolved = RootNamespace.Global.Lookup (ec.DeclContainer, lookup_name, Location.Null);
if (resolved != null && rest != null) {
// Now handle the rest of the the name.
Namespace ns = resolved as Namespace;
element = elements [i++];
lookup_name += "." + element;
- resolved = ns.Lookup (ec.DeclSpace, element, Location.Null);
+ resolved = ns.Lookup (ec.DeclContainer, element, Location.Null);
}
if (resolved != null && resolved is TypeExpr) {
Type t = ((TypeExpr) resolved).Type;
while (t != null) {
- if (!ec.DeclSpace.CheckAccessLevel (t)) {
+ if (!ec.DeclContainer.CheckAccessLevel (t)) {
resolved = null;
lookup_name = t.FullName;
break;
}
if (!(resolved is TypeExpr)) {
- resolved.Error_UnexpectedKind (ec, "type", loc);
+ resolved.Error_UnexpectedKind (ec.DeclContainer, "type", loc);
return null;
}
- type = ((TypeExpr) resolved).ResolveType (ec);
+ type = resolved.Type;
return this;
}
}
}
+ /// <summary>
+ /// Represents an "unbound generic type", ie. typeof (Foo<>).
+ /// See 14.5.11.
+ /// </summary>
+ public class UnboundTypeExpression : TypeExpr
+ {
+ MemberName name;
+
+ public UnboundTypeExpression (MemberName name, Location l)
+ {
+ this.name = name;
+ loc = l;
+ }
+
+ protected override TypeExpr DoResolveAsTypeStep (IResolveContext ec)
+ {
+ Expression expr;
+ if (name.Left != null) {
+ Expression lexpr = name.Left.GetTypeExpression ();
+ expr = new MemberAccess (lexpr, name.Basename);
+ } else {
+ expr = new SimpleName (name.Basename, loc);
+ }
+
+ FullNamedExpression fne = expr.ResolveAsTypeStep (ec, false);
+ if (fne == null)
+ return null;
+
+ type = fne.Type;
+ return new TypeExpression (type, loc);
+ }
+
+ public override string Name {
+ get { return name.FullName; }
+ }
+
+ public override string FullName {
+ get { return name.FullName; }
+ }
+ }
+
public class TypeAliasExpression : TypeExpr {
+ FullNamedExpression alias;
TypeExpr texpr;
+ TypeArguments args;
+ string name;
- public TypeAliasExpression (TypeExpr texpr, Location l)
+ public TypeAliasExpression (FullNamedExpression alias, TypeArguments args, Location l)
{
- this.texpr = texpr;
- loc = texpr.Location;
+ this.alias = alias;
+ this.args = args;
+ loc = l;
eclass = ExprClass.Type;
+ if (args != null)
+ name = alias.FullName + "<" + args.ToString () + ">";
+ else
+ name = alias.FullName;
}
public override string Name {
- get { return texpr.Name; }
+ get { return alias.FullName; }
}
public override string FullName {
- get { return texpr.FullName; }
+ get { return name; }
}
- public override TypeExpr DoResolveAsTypeStep (EmitContext ec)
+ protected override TypeExpr DoResolveAsTypeStep (IResolveContext ec)
{
- Type type = texpr.ResolveType (ec);
- if (type == null)
+ texpr = alias.ResolveAsTypeTerminal (ec, false);
+ if (texpr == null)
return null;
- return new TypeExpression (type, loc);
+ Type type = texpr.Type;
+ int num_args = TypeManager.GetNumberOfTypeArguments (type);
+
+ if (args != null) {
+ if (num_args == 0) {
+ Report.Error (308, loc,
+ "The non-generic type `{0}' cannot " +
+ "be used with type arguments.",
+ TypeManager.CSharpName (type));
+ return null;
+ }
+
+ ConstructedType ctype = new ConstructedType (type, args, loc);
+ return ctype.ResolveAsTypeTerminal (ec, false);
+ } else if (num_args > 0) {
+ Report.Error (305, loc,
+ "Using the generic type `{0}' " +
+ "requires {1} type arguments",
+ TypeManager.CSharpName (type), num_args.ToString ());
+ return null;
+ }
+
+ return texpr;
}
public override bool CheckAccessLevel (DeclSpace ds)
"with an instance reference, qualify it with a type name instead", name);
}
- protected bool CheckIntermediateModification ()
- {
- if (!InstanceExpression.Type.IsValueType)
- return true;
-
- if (InstanceExpression is UnboxCast) {
- Report.Error (445, loc, "Cannot modify the result of an unboxing conversion");
- return false;
- }
-
- if (!(InstanceExpression is IMemoryLocation)) {
- Report.Error (1612, loc, "Cannot modify the return value of `{0}' because it is not a variable",
- InstanceExpression.GetSignatureForError ());
- return false;
- }
-
- return true;
- }
-
// TODO: possible optimalization
// Cache resolved constant result in FieldBuilder <-> expression map
public virtual Expression ResolveMemberAccess (EmitContext ec, Expression left, Location loc,
if (left is TypeExpr) {
if (!IsStatic) {
- SimpleName.Error_ObjectRefRequired (ec, loc, Name);
+ SimpleName.Error_ObjectRefRequired (ec, loc, GetSignatureForError ());
return null;
}
return;
if (InstanceExpression == EmptyExpression.Null) {
- SimpleName.Error_ObjectRefRequired (ec, loc, Name);
+ SimpleName.Error_ObjectRefRequired (ec, loc, GetSignatureForError ());
return;
}
if (InstanceExpression is IMemoryLocation) {
((IMemoryLocation) InstanceExpression).AddressOf (ec, AddressOp.LoadStore);
} else {
- LocalTemporary t = new LocalTemporary (ec, InstanceExpression.Type);
+ LocalTemporary t = new LocalTemporary (InstanceExpression.Type);
InstanceExpression.Emit (ec);
t.Store (ec);
t.AddressOf (ec, AddressOp.Store);
/// </summary>
public class MethodGroupExpr : MemberExpr {
public MethodBase [] Methods;
- bool identical_type_name = false;
+ bool has_type_arguments = false;
+ bool identical_type_name = false;
bool is_base;
public MethodGroupExpr (MemberInfo [] mi, Location l)
public override Type DeclaringType {
get {
//
- // The methods are arranged in this order:
- // derived type -> base type
+ // We assume that the top-level type is in the end
//
- return Methods [0].DeclaringType;
+ return Methods [Methods.Length - 1].DeclaringType;
+ //return Methods [0].DeclaringType;
+ }
+ }
+
+ public bool HasTypeArguments {
+ get {
+ return has_type_arguments;
+ }
+
+ set {
+ has_type_arguments = value;
}
}
identical_type_name = value;
}
}
-
+
public bool IsBase {
get {
return is_base;
{
return RemoveMethods (false);
}
+
+ public Expression ResolveGeneric (EmitContext ec, TypeArguments args)
+ {
+#if GMCS_SOURCE
+ if (args.Resolve (ec) == false)
+ return null;
+
+ Type[] atypes = args.Arguments;
+
+ int first_count = 0;
+ MethodInfo first = null;
+
+ ArrayList list = new ArrayList ();
+ foreach (MethodBase mb in Methods) {
+ MethodInfo mi = mb as MethodInfo;
+ if ((mi == null) || !mi.IsGenericMethod)
+ continue;
+
+ Type[] gen_params = mi.GetGenericArguments ();
+
+ if (first == null) {
+ first = mi;
+ first_count = gen_params.Length;
+ }
+
+ if (gen_params.Length != atypes.Length)
+ continue;
+
+ list.Add (mi.MakeGenericMethod (atypes));
+ }
+
+ if (list.Count > 0) {
+ MethodGroupExpr new_mg = new MethodGroupExpr (list, Location);
+ new_mg.InstanceExpression = InstanceExpression;
+ new_mg.HasTypeArguments = true;
+ new_mg.IsBase = IsBase;
+ return new_mg;
+ }
+
+ if (first != null)
+ Report.Error (
+ 305, loc, "Using the generic method `{0}' " +
+ "requires {1} type arguments", Name,
+ first_count.ToString ());
+ else
+ Report.Error (
+ 308, loc, "The non-generic method `{0}' " +
+ "cannot be used with type arguments", Name);
+
+ return null;
+#else
+ throw new NotImplementedException ();
+#endif
+ }
}
/// <summary>
public class FieldExpr : MemberExpr, IAssignMethod, IMemoryLocation, IVariable {
public readonly FieldInfo FieldInfo;
VariableInfo variable_info;
-
+
LocalTemporary temp;
bool prepared;
bool in_initializer;
{
FieldInfo = fi;
eclass = ExprClass.Variable;
- type = fi.FieldType;
+ type = TypeManager.TypeToCoreType (fi.FieldType);
loc = l;
}
public override Expression ResolveMemberAccess (EmitContext ec, Expression left, Location loc,
SimpleName original)
{
- Type t = FieldInfo.FieldType;
+ FieldInfo fi = TypeManager.GetGenericFieldDefinition (FieldInfo);
- if (FieldInfo.IsLiteral || (FieldInfo.IsInitOnly && t == TypeManager.decimal_type)) {
- IConstant ic = TypeManager.GetConstant (FieldInfo);
+ Type t = fi.FieldType;
+
+ if (fi.IsLiteral || (fi.IsInitOnly && t == TypeManager.decimal_type)) {
+ IConstant ic = TypeManager.GetConstant (fi);
if (ic == null) {
- if (FieldInfo.IsLiteral) {
- ic = new ExternalConstant (FieldInfo);
+ if (fi.IsLiteral) {
+ ic = new ExternalConstant (fi);
} else {
- ic = ExternalConstant.CreateDecimal (FieldInfo);
+ ic = ExternalConstant.CreateDecimal (fi);
if (ic == null) {
return base.ResolveMemberAccess (ec, left, loc, original);
}
}
- TypeManager.RegisterConstant (FieldInfo, ic);
+ TypeManager.RegisterConstant (fi, ic);
}
bool left_is_type = left is TypeExpr;
return null;
}
- if (ic.ResolveValue ())
- ic.CheckObsoleteness (loc);
+ if (ic.ResolveValue ()) {
+ if (!ec.IsInObsoleteScope)
+ ic.CheckObsoleteness (loc);
+ }
return ic.Value;
}
override public Expression DoResolve (EmitContext ec)
{
- if (ec.InRefOutArgumentResolving && FieldInfo.IsInitOnly && !ec.IsConstructor && FieldInfo.FieldType.IsValueType) {
- if (FieldInfo.FieldType is TypeBuilder) {
- if (FieldInfo.IsStatic)
- Report.Error (1651, loc, "Fields of static readonly field `{0}' cannot be passed ref or out (except in a static constructor)",
- GetSignatureForError ());
- else
- Report.Error (1649, loc, "Members of readonly field `{0}.{1}' cannot be passed ref or out (except in a constructor)",
- TypeManager.CSharpName (DeclaringType), Name);
- } else {
- if (FieldInfo.IsStatic)
- Report.Error (199, loc, "A static readonly field `{0}' cannot be passed ref or out (except in a static constructor)",
- Name);
- else
- Report.Error (192, loc, "A readonly field `{0}' cannot be passed ref or out (except in a constructor)",
- Name);
- }
- return null;
- }
+ return DoResolve (ec, false, false);
+ }
+ Expression DoResolve (EmitContext ec, bool lvalue_instance, bool out_access)
+ {
if (!FieldInfo.IsStatic){
if (InstanceExpression == null){
//
// This can happen when referencing an instance field using
// a fully qualified type expression: TypeName.InstanceField = xxx
//
- SimpleName.Error_ObjectRefRequired (ec, loc, FieldInfo.Name);
+ SimpleName.Error_ObjectRefRequired (ec, loc, GetSignatureForError ());
return null;
}
// Resolve the field's instance expression while flow analysis is turned
// off: when accessing a field "a.b", we must check whether the field
// "a.b" is initialized, not whether the whole struct "a" is initialized.
- InstanceExpression = InstanceExpression.Resolve (
- ec, ResolveFlags.VariableOrValue | ResolveFlags.DisableFlowAnalysis);
+
+ if (lvalue_instance) {
+ using (ec.With (EmitContext.Flags.DoFlowAnalysis, false)) {
+ Expression right_side =
+ out_access ? EmptyExpression.LValueMemberOutAccess : EmptyExpression.LValueMemberAccess;
+ InstanceExpression = InstanceExpression.ResolveLValue (ec, right_side, loc);
+ }
+ } else {
+ ResolveFlags rf = ResolveFlags.VariableOrValue | ResolveFlags.DisableFlowAnalysis;
+ InstanceExpression = InstanceExpression.Resolve (ec, rf);
+ }
+
if (InstanceExpression == null)
return null;
+
+ InstanceExpression.CheckMarshalByRefAccess ();
}
if (!in_initializer && !ec.IsFieldInitializer) {
ObsoleteAttribute oa;
FieldBase f = TypeManager.GetField (FieldInfo);
if (f != null) {
- f.CheckObsoleteness (loc);
+ if (!ec.IsInObsoleteScope)
+ f.CheckObsoleteness (loc);
// To be sure that type is external because we do not register generated fields
} else if (!(FieldInfo.DeclaringType is TypeBuilder)) {
"this");
return null;
}
- if ((am.ContainerAnonymousMethod == null) && (InstanceExpression is This))
- ec.CaptureField (this);
}
}
return this;
}
- void Report_AssignToReadonly (bool is_instance)
- {
- string msg;
-
- if (is_instance)
- msg = "A readonly field cannot be assigned to (except in a constructor or a variable initializer)";
- else
- msg = "A static readonly field cannot be assigned to (except in a static constructor or a variable initializer)";
+ static readonly int [] codes = {
+ 191, // instance, write access
+ 192, // instance, out access
+ 198, // static, write access
+ 199, // static, out access
+ 1648, // member of value instance, write access
+ 1649, // member of value instance, out access
+ 1650, // member of value static, write access
+ 1651 // member of value static, out access
+ };
+
+ static readonly string [] msgs = {
+ /*0191*/ "A readonly field `{0}' cannot be assigned to (except in a constructor or a variable initializer)",
+ /*0192*/ "A readonly field `{0}' cannot be passed ref or out (except in a constructor)",
+ /*0198*/ "A static readonly field `{0}' cannot be assigned to (except in a static constructor or a variable initializer)",
+ /*0199*/ "A static readonly field `{0}' cannot be passed ref or out (except in a static constructor)",
+ /*1648*/ "Members of readonly field `{0}' cannot be modified (except in a constructor or a variable initializer)",
+ /*1649*/ "Members of readonly field `{0}' cannot be passed ref or out (except in a constructor)",
+ /*1650*/ "Fields of static readonly field `{0}' cannot be assigned to (except in a static constructor or a variable initializer)",
+ /*1651*/ "Fields of static readonly field `{0}' cannot be passed ref or out (except in a static constructor)"
+ };
+
+ // The return value is always null. Returning a value simplifies calling code.
+ Expression Report_AssignToReadonly (Expression right_side)
+ {
+ int i = 0;
+ if (right_side == EmptyExpression.OutAccess || right_side == EmptyExpression.LValueMemberOutAccess)
+ i += 1;
+ if (IsStatic)
+ i += 2;
+ if (right_side == EmptyExpression.LValueMemberAccess || right_side == EmptyExpression.LValueMemberOutAccess)
+ i += 4;
+ Report.Error (codes [i], loc, msgs [i], GetSignatureForError ());
- Report.Error (is_instance ? 191 : 198, loc, msg);
+ return null;
}
override public Expression DoResolveLValue (EmitContext ec, Expression right_side)
if ((var != null) && (var.VariableInfo != null))
var.VariableInfo.SetFieldAssigned (ec, FieldInfo.Name);
- Expression e = DoResolve (ec);
+ bool lvalue_instance = !FieldInfo.IsStatic && FieldInfo.DeclaringType.IsValueType;
+ bool out_access = right_side == EmptyExpression.OutAccess || right_side == EmptyExpression.LValueMemberOutAccess;
- if (e == null)
- return null;
+ Expression e = DoResolve (ec, lvalue_instance, out_access);
- if (!FieldInfo.IsStatic && !CheckIntermediateModification ())
+ if (e == null)
return null;
FieldBase fb = TypeManager.GetField (FieldInfo);
if (fb != null)
fb.SetAssigned ();
- if (!FieldInfo.IsInitOnly)
- return this;
-
- //
- // InitOnly fields can only be assigned in constructors
- //
-
- if (ec.IsConstructor){
- if (IsStatic && !ec.IsStatic)
- Report_AssignToReadonly (false);
+ if (FieldInfo.IsInitOnly) {
+ // InitOnly fields can only be assigned in constructors or initializers
+ if (!ec.IsFieldInitializer && !ec.IsConstructor)
+ return Report_AssignToReadonly (right_side);
+
+ if (ec.IsConstructor) {
+ Type ctype = ec.TypeContainer.CurrentType;
+ if (ctype == null)
+ ctype = ec.ContainerType;
+
+ // InitOnly fields cannot be assigned-to in a different constructor from their declaring type
+ if (!TypeManager.IsEqual (ctype, FieldInfo.DeclaringType))
+ return Report_AssignToReadonly (right_side);
+ // static InitOnly fields cannot be assigned-to in an instance constructor
+ if (IsStatic && !ec.IsStatic)
+ return Report_AssignToReadonly (right_side);
+ // instance constructors can't modify InitOnly fields of other instances of the same type
+ if (!IsStatic && !(InstanceExpression is This))
+ return Report_AssignToReadonly (right_side);
+ }
+ }
- if (ec.ContainerType == FieldInfo.DeclaringType)
- return this;
+ if (right_side == EmptyExpression.OutAccess &&
+ !IsStatic && !(InstanceExpression is This) && DeclaringType.IsSubclassOf (TypeManager.mbr_type)) {
+ Report.SymbolRelatedToPreviousError (DeclaringType);
+ Report.Warning (197, 1, loc,
+ "Passing `{0}' as ref or out or taking its address may cause a runtime exception because it is a field of a marshal-by-reference class",
+ GetSignatureForError ());
}
- Report_AssignToReadonly (!IsStatic);
-
- return null;
+ return this;
}
- public override void CheckMarshallByRefAccess (Type container)
+ public override void CheckMarshalByRefAccess ()
{
- if (!IsStatic && Type.IsValueType && !container.IsSubclassOf (TypeManager.mbr_type) && DeclaringType.IsSubclassOf (TypeManager.mbr_type)) {
+ if (!IsStatic && Type.IsValueType && !(InstanceExpression is This) && DeclaringType.IsSubclassOf (TypeManager.mbr_type)) {
Report.SymbolRelatedToPreviousError (DeclaringType);
- Report.Error (1690, loc, "Cannot call methods, properties, or indexers on `{0}' because it is a value type member of a marshal-by-reference class",
- GetSignatureForError ());
+ Report.Warning (1690, 1, loc, "Cannot call methods, properties, or indexers on `{0}' because it is a value type member of a marshal-by-reference class",
+ GetSignatureForError ());
}
}
return variable != null && InstanceExpression.Type.IsValueType && variable.VerifyFixed ();
}
- public override int GetHashCode()
+ public override int GetHashCode ()
{
return FieldInfo.GetHashCode ();
}
ILGenerator ig = ec.ig;
bool is_volatile = false;
- if (FieldInfo is FieldBuilder){
- FieldBase f = TypeManager.GetField (FieldInfo);
- if (f != null){
- if ((f.ModFlags & Modifiers.VOLATILE) != 0)
- is_volatile = true;
-
- f.SetMemberIsUsed ();
- }
- }
+ FieldBase f = TypeManager.GetField (FieldInfo);
+ if (f != null){
+ if ((f.ModFlags & Modifiers.VOLATILE) != 0)
+ is_volatile = true;
+
+ f.SetMemberIsUsed ();
+ }
if (FieldInfo.IsStatic){
if (is_volatile)
} else {
if (!prepared)
EmitInstance (ec, false);
-
+
if (is_volatile)
ig.Emit (OpCodes.Volatile);
}
}
- if (leave_copy) {
+ if (leave_copy) {
ec.ig.Emit (OpCodes.Dup);
if (!FieldInfo.IsStatic) {
- temp = new LocalTemporary (ec, this.Type);
+ temp = new LocalTemporary (this.Type);
temp.Store (ec);
}
}
}
-
+
public void EmitAssign (EmitContext ec, Expression source, bool leave_copy, bool prepare_for_load)
{
FieldAttributes fa = FieldInfo.Attributes;
prepared = prepare_for_load;
if (is_readonly && !ec.IsConstructor){
- Report_AssignToReadonly (!is_static);
+ Report_AssignToReadonly (source);
return;
}
if (leave_copy) {
ec.ig.Emit (OpCodes.Dup);
if (!FieldInfo.IsStatic) {
- temp = new LocalTemporary (ec, this.Type);
+ temp = new LocalTemporary (this.Type);
temp.Store (ec);
}
}
- if (FieldInfo is FieldBuilder){
- FieldBase f = TypeManager.GetField (FieldInfo);
- if (f != null){
- if ((f.ModFlags & Modifiers.VOLATILE) != 0)
- ig.Emit (OpCodes.Volatile);
+ FieldBase f = TypeManager.GetField (FieldInfo);
+ if (f != null){
+ if ((f.ModFlags & Modifiers.VOLATILE) != 0)
+ ig.Emit (OpCodes.Volatile);
- f.SetAssigned ();
- }
- }
+ f.SetAssigned ();
+ }
if (is_static)
ig.Emit (OpCodes.Stsfld, FieldInfo);
else
ig.Emit (OpCodes.Stfld, FieldInfo);
- if (temp != null)
+ if (temp != null) {
temp.Emit (ec);
+ temp.Release (ec);
+ }
}
public override void Emit (EmitContext ec)
public void AddressOf (EmitContext ec, AddressOp mode)
{
ILGenerator ig = ec.ig;
-
- if (FieldInfo is FieldBuilder){
- FieldBase f = TypeManager.GetField (FieldInfo);
- if (f != null){
- if ((f.ModFlags & Modifiers.VOLATILE) != 0){
- Report.Warning (420, 1, loc, "`{0}': A volatile fields cannot be passed using a ref or out parameter",
+
+ FieldBase f = TypeManager.GetField (FieldInfo);
+ if (f != null){
+ if ((f.ModFlags & Modifiers.VOLATILE) != 0){
+ Report.Warning (420, 1, loc, "`{0}': A volatile fields cannot be passed using a ref or out parameter",
f.GetSignatureForError ());
- return;
- }
-
- if ((mode & AddressOp.Store) != 0)
- f.SetAssigned ();
- if ((mode & AddressOp.Load) != 0)
- f.SetMemberIsUsed ();
+ return;
}
- }
+
+ if ((mode & AddressOp.Store) != 0)
+ f.SetAssigned ();
+ if ((mode & AddressOp.Load) != 0)
+ f.SetMemberIsUsed ();
+ }
//
// Handle initonly fields specially: make a copy and then
if (FieldInfo.IsStatic){
ig.Emit (OpCodes.Ldsflda, FieldInfo);
} else {
- EmitInstance (ec, false);
+ if (!prepared)
+ EmitInstance (ec, false);
ig.Emit (OpCodes.Ldflda, FieldInfo);
}
}
internal static PtrHashtable AccessorTable = new PtrHashtable ();
- public PropertyExpr (EmitContext ec, PropertyInfo pi, Location l)
+ public PropertyExpr (Type containerType, PropertyInfo pi, Location l)
{
PropertyInfo = pi;
eclass = ExprClass.PropertyAccess;
type = TypeManager.TypeToCoreType (pi.PropertyType);
- ResolveAccessors (ec);
+ ResolveAccessors (containerType);
}
public override string Name {
void FindAccessors (Type invocation_type)
{
- BindingFlags flags = BindingFlags.Public | BindingFlags.NonPublic |
+ const BindingFlags flags = BindingFlags.Public | BindingFlags.NonPublic |
BindingFlags.Static | BindingFlags.Instance |
BindingFlags.DeclaredOnly;
// We also perform the permission checking here, as the PropertyInfo does not
// hold the information for the accessibility of its setter/getter
//
- void ResolveAccessors (EmitContext ec)
+ // TODO: can use TypeManager.GetProperty to boost performance
+ void ResolveAccessors (Type containerType)
{
- FindAccessors (ec.ContainerType);
+ FindAccessors (containerType);
if (getter != null) {
- IMethodData md = TypeManager.GetMethod (getter);
+ MethodBase the_getter = TypeManager.DropGenericMethodArguments (getter);
+ IMethodData md = TypeManager.GetMethod (the_getter);
if (md != null)
md.SetMemberIsUsed ();
}
if (setter != null) {
- IMethodData md = TypeManager.GetMethod (setter);
+ MethodBase the_setter = TypeManager.DropGenericMethodArguments (setter);
+ IMethodData md = TypeManager.GetMethod (the_setter);
if (md != null)
md.SetMemberIsUsed ();
}
}
- bool InstanceResolve (EmitContext ec, bool must_do_cs1540_check)
+ bool InstanceResolve (EmitContext ec, bool lvalue_instance, bool must_do_cs1540_check)
{
if (is_static) {
InstanceExpression = null;
}
if (InstanceExpression == null) {
- SimpleName.Error_ObjectRefRequired (ec, loc, PropertyInfo.Name);
+ SimpleName.Error_ObjectRefRequired (ec, loc, GetSignatureForError ());
return false;
}
InstanceExpression = InstanceExpression.DoResolve (ec);
+ if (lvalue_instance && InstanceExpression != null)
+ InstanceExpression = InstanceExpression.ResolveLValue (ec, EmptyExpression.LValueMemberAccess, loc);
+
if (InstanceExpression == null)
return false;
-
- InstanceExpression.CheckMarshallByRefAccess (ec.ContainerType);
- if (must_do_cs1540_check && InstanceExpression != EmptyExpression.Null &&
- InstanceExpression.Type != ec.ContainerType &&
- ec.ContainerType.IsSubclassOf (PropertyInfo.DeclaringType) &&
- InstanceExpression.Type.IsSubclassOf (PropertyInfo.DeclaringType)) {
- Error_CannotAccessProtected (loc, PropertyInfo, InstanceExpression.Type, ec.ContainerType);
- return false;
+ InstanceExpression.CheckMarshalByRefAccess ();
+
+ if (must_do_cs1540_check && (InstanceExpression != EmptyExpression.Null) &&
+ !TypeManager.IsInstantiationOfSameGenericType (InstanceExpression.Type, ec.ContainerType) &&
+ !TypeManager.IsNestedChildOf (ec.ContainerType, InstanceExpression.Type) &&
+ !TypeManager.IsSubclassOf (InstanceExpression.Type, ec.ContainerType)) {
+ Report.SymbolRelatedToPreviousError (PropertyInfo);
+ Error_CannotAccessProtected (loc, PropertyInfo, InstanceExpression.Type, ec.ContainerType);
+ return false;
}
return true;
Report.Error (271, loc, "The property or indexer `{0}' cannot be used in this context because the get accessor is inaccessible",
TypeManager.CSharpSignature (getter));
}
- else
+ else {
+ Report.SymbolRelatedToPreviousError (getter);
ErrorIsInaccesible (loc, TypeManager.CSharpSignature (getter));
+ }
return null;
}
- if (!InstanceResolve (ec, must_do_cs1540_check))
+ if (!InstanceResolve (ec, false, must_do_cs1540_check))
return null;
//
override public Expression DoResolveLValue (EmitContext ec, Expression right_side)
{
+ if (right_side == EmptyExpression.OutAccess) {
+ Report.Error (206, loc, "A property or indexer `{0}' may not be passed as an out or ref parameter",
+ GetSignatureForError ());
+ return null;
+ }
+
+ if (right_side == EmptyExpression.LValueMemberAccess || right_side == EmptyExpression.LValueMemberOutAccess) {
+ Report.Error (1612, loc, "Cannot modify the return value of `{0}' because it is not a variable",
+ GetSignatureForError ());
+ return null;
+ }
+
if (setter == null){
//
// The following condition happens if the PropertyExpr was
//
if (getter == null)
return null;
-
- Report.Error (200, loc, " Property or indexer `{0}' cannot be assigned to (it is read only)",
- TypeManager.GetFullNameSignature (PropertyInfo));
+ Report.Error (200, loc, "Property or indexer `{0}' cannot be assigned to (it is read only)",
+ GetSignatureForError ());
return null;
}
Report.Error (272, loc, "The property or indexer `{0}' cannot be used in this context because the set accessor is inaccessible",
TypeManager.CSharpSignature (setter));
}
- else
+ else {
+ Report.SymbolRelatedToPreviousError (setter);
ErrorIsInaccesible (loc, TypeManager.CSharpSignature (setter));
+ }
return null;
}
- if (!InstanceResolve (ec, must_do_cs1540_check))
+ if (!InstanceResolve (ec, PropertyInfo.DeclaringType.IsValueType, must_do_cs1540_check))
return null;
//
return null;
}
- //
- // Check that we are not making changes to a temporary memory location
- //
- if (InstanceExpression != null && !CheckIntermediateModification ())
- return null;
-
return this;
}
if (leave_copy) {
ec.ig.Emit (OpCodes.Dup);
if (!is_static) {
- temp = new LocalTemporary (ec, this.Type);
+ temp = new LocalTemporary (this.Type);
temp.Store (ec);
}
}
if (leave_copy) {
ec.ig.Emit (OpCodes.Dup);
if (!is_static) {
- temp = new LocalTemporary (ec, this.Type);
+ temp = new LocalTemporary (this.Type);
temp.Store (ec);
}
}
} else if (leave_copy) {
source.Emit (ec);
if (!is_static) {
- temp = new LocalTemporary (ec, this.Type);
+ temp = new LocalTemporary (this.Type);
temp.Store (ec);
}
my_source = temp;
Invocation.EmitCall (ec, IsBase, IsStatic, InstanceExpression, setter, args, loc, false, prepared);
- if (temp != null)
+ if (temp != null) {
temp.Emit (ec);
+ temp.Release (ec);
+ }
}
}
bool is_static;
MethodInfo add_accessor, remove_accessor;
+
+ internal static PtrHashtable AccessorTable = new PtrHashtable ();
public EventExpr (EventInfo ei, Location loc)
{
add_accessor = TypeManager.GetAddMethod (ei);
remove_accessor = TypeManager.GetRemoveMethod (ei);
+ if (add_accessor != null)
+ AccessorTable [add_accessor] = ei;
+ if (remove_accessor != null)
+ AccessorTable [remove_accessor] = ei;
if (add_accessor.IsStatic || remove_accessor.IsStatic)
is_static = true;
MemberInfo mi = TypeManager.GetPrivateFieldOfEvent (EventInfo);
if (mi != null) {
- MemberExpr ml = (MemberExpr) ExprClassFromMemberInfo (ec, mi, loc);
+ MemberExpr ml = (MemberExpr) ExprClassFromMemberInfo (ec.ContainerType, mi, loc);
if (ml == null) {
Report.Error (-200, loc, "Internal error!!");
}
if (InstanceExpression == null) {
- SimpleName.Error_ObjectRefRequired (ec, loc, EventInfo.Name);
+ SimpleName.Error_ObjectRefRequired (ec, loc, GetSignatureForError ());
return false;
}
// This is using the same mechanism as the CS1540 check in PropertyExpr.
// However, in the Event case, we reported a CS0122 instead.
//
- if (must_do_cs1540_check && InstanceExpression != EmptyExpression.Null) {
- if ((InstanceExpression.Type != ec.ContainerType) &&
- ec.ContainerType.IsSubclassOf (InstanceExpression.Type)) {
- ErrorIsInaccesible (loc, TypeManager.CSharpSignature (EventInfo));
- return false;
- }
+ if (must_do_cs1540_check && InstanceExpression != EmptyExpression.Null &&
+ InstanceExpression.Type != ec.ContainerType &&
+ ec.ContainerType.IsSubclassOf (InstanceExpression.Type)) {
+ Report.SymbolRelatedToPreviousError (EventInfo);
+ ErrorIsInaccesible (loc, TypeManager.CSharpSignature (EventInfo));
+ return false;
}
return true;
bool must_do_cs1540_check;
if (!(IsAccessorAccessible (ec.ContainerType, add_accessor, out must_do_cs1540_check) &&
IsAccessorAccessible (ec.ContainerType, remove_accessor, out must_do_cs1540_check))) {
+ Report.SymbolRelatedToPreviousError (EventInfo);
ErrorIsInaccesible (loc, TypeManager.CSharpSignature (EventInfo));
return null;
}
}
}
-
public class TemporaryVariable : Expression, IMemoryLocation
{
LocalInfo li;
+ Variable var;
public TemporaryVariable (Type type, Location loc)
{
li = ec.CurrentBlock.AddTemporaryVariable (te, loc);
if (!li.Resolve (ec))
return null;
-
- AnonymousContainer am = ec.CurrentAnonymousMethod;
- if ((am != null) && am.IsIterator)
- ec.CaptureVariable (li);
+
+ if (ec.MustCaptureVariable (li)) {
+ ScopeInfo scope = li.Block.CreateScopeInfo ();
+ var = scope.AddLocal (li);
+ type = var.Type;
+ }
return this;
}
+
+ public Variable Variable {
+ get { return var != null ? var : li.Variable; }
+ }
public override void Emit (EmitContext ec)
{
- ILGenerator ig = ec.ig;
-
- if (li.FieldBuilder != null) {
- ig.Emit (OpCodes.Ldarg_0);
- ig.Emit (OpCodes.Ldfld, li.FieldBuilder);
- } else {
- ig.Emit (OpCodes.Ldloc, li.LocalBuilder);
- }
+ Variable.EmitInstance (ec);
+ Variable.Emit (ec);
}
public void EmitLoadAddress (EmitContext ec)
{
- ILGenerator ig = ec.ig;
-
- if (li.FieldBuilder != null) {
- ig.Emit (OpCodes.Ldarg_0);
- ig.Emit (OpCodes.Ldflda, li.FieldBuilder);
- } else {
- ig.Emit (OpCodes.Ldloca, li.LocalBuilder);
- }
+ Variable.EmitInstance (ec);
+ Variable.EmitAddressOf (ec);
}
public void Store (EmitContext ec, Expression right_side)
{
- if (li.FieldBuilder != null)
- ec.ig.Emit (OpCodes.Ldarg_0);
-
+ Variable.EmitInstance (ec);
right_side.Emit (ec);
- if (li.FieldBuilder != null) {
- ec.ig.Emit (OpCodes.Stfld, li.FieldBuilder);
- } else {
- ec.ig.Emit (OpCodes.Stloc, li.LocalBuilder);
- }
+ Variable.EmitAssign (ec);
}
public void EmitThis (EmitContext ec)
{
- if (li.FieldBuilder != null) {
- ec.ig.Emit (OpCodes.Ldarg_0);
- }
+ Variable.EmitInstance (ec);
}
- public void EmitStore (ILGenerator ig)
+ public void EmitStore (EmitContext ec)
{
- if (li.FieldBuilder != null)
- ig.Emit (OpCodes.Stfld, li.FieldBuilder);
- else
- ig.Emit (OpCodes.Stloc, li.LocalBuilder);
+ Variable.EmitAssign (ec);
}
public void AddressOf (EmitContext ec, AddressOp mode)
projects / mono.git / blobdiff