DisableFlowAnalysis = 8,
// Set if this is resolving the first part of a MemberAccess.
- Intermediate = 16
+ Intermediate = 16,
+
+ // Disable control flow analysis _of struct_ while resolving the expression.
+ // This is used when resolving the instance expression of a field expression.
+ DisableStructFlowAnalysis = 32,
+
}
//
public void Error (int error, string s)
{
if (loc.IsNull)
- Report.Error (error, loc, s);
- else
Report.Error (error, s);
+ else
+ Report.Error (error, loc, s);
}
/// <summary>
Report.Error (122, loc, "`{0}' is inaccessible due to its protection level", name);
}
+ public virtual void Error_ValueCannotBeConverted (Location loc, Type t)
+ {
+ Convert.Error_CannotImplicitConversion (loc, Type, t);
+ }
+
+ protected static void Error_TypeDoesNotContainDefinition (Location loc, Type type, string name)
+ {
+ Report.Error (117, loc, "`{0}' does not contain a definition for `{1}'",
+ TypeManager.CSharpName (type), name);
+ }
+
ResolveFlags ExprClassToResolveFlags ()
{
switch (eclass) {
return ResolveAsTypeStep (ec, false);
bool old_do_flow_analysis = ec.DoFlowAnalysis;
+ bool old_omit_struct_analysis = ec.OmitStructFlowAnalysis;
if ((flags & ResolveFlags.DisableFlowAnalysis) != 0)
ec.DoFlowAnalysis = false;
+ if ((flags & ResolveFlags.DisableStructFlowAnalysis) != 0)
+ ec.OmitStructFlowAnalysis = true;
Expression e;
bool intermediate = (flags & ResolveFlags.Intermediate) == ResolveFlags.Intermediate;
e = DoResolve (ec);
ec.DoFlowAnalysis = old_do_flow_analysis;
+ ec.OmitStructFlowAnalysis = old_omit_struct_analysis;
if (e == null)
return null;
return e;
}
+ 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;
+ }
+ }
+ }
+
+ Const.Error_ExpressionMustBeConstant (loc, mc.GetSignatureForError ());
+ return null;
+ }
+
/// <summary>
/// Resolves an expression for LValue assignment
/// </summary>
/// <summary>
/// Returns a fully formed expression after a MemberLookup
/// </summary>
+ ///
+ // TODO: This can be heavily cached
public static Expression ExprClassFromMemberInfo (EmitContext ec, MemberInfo mi, Location loc)
{
if (mi is EventInfo)
Report.Error (103, loc, "The name `{0}' does not exist in the context of `{1}'",
name, class_name);
else
- Report.Error (
- 117, loc, "`" + TypeManager.CSharpName (queried_type) + "' does not contain a " +
- "definition for `" + name + "'");
+ Error_TypeDoesNotContainDefinition (loc, queried_type, name);
return;
}
{
Report.Error (214, loc, "Pointers and fixed size buffers may only be used in an unsafe context");
}
-
- /// <summary>
- /// Converts the IntConstant, UIntConstant, LongConstant or
- /// ULongConstant into the integral target_type. Notice
- /// that we do not return an `Expression' we do return
- /// a boxed integral type.
- ///
- /// FIXME: Since I added the new constants, we need to
- /// also support conversions from CharConstant, ByteConstant,
- /// SByteConstant, UShortConstant, ShortConstant
- ///
- /// This is used by the switch statement, so the domain
- /// of work is restricted to the literals above, and the
- /// targets are int32, uint32, char, byte, sbyte, ushort,
- /// short, uint64 and int64
- /// </summary>
- public static object ConvertIntLiteral (Constant c, Type target_type, Location loc)
- {
- if (!Convert.ImplicitStandardConversionExists (Convert.ConstantEC, c, target_type)){
- Convert.Error_CannotImplicitConversion (loc, c.Type, target_type);
- return null;
- }
-
- if (c.Type == target_type)
- return ((Constant) c).GetValue ();
-
- //
- // Make into one of the literals we handle, we dont really care
- // about this value as we will just return a few limited types
- //
- if (c is EnumConstant)
- c = ((EnumConstant)c).WidenToCompilerConstant ();
-
- if (c is IntConstant){
- int v = ((IntConstant) c).Value;
-
- if (target_type == TypeManager.uint32_type){
- if (v >= 0)
- return (uint) v;
- } else if (target_type == TypeManager.char_type){
- if (v >= Char.MinValue && v <= Char.MaxValue)
- return (char) v;
- } else if (target_type == TypeManager.byte_type){
- if (v >= Byte.MinValue && v <= Byte.MaxValue)
- return (byte) v;
- } else if (target_type == TypeManager.sbyte_type){
- if (v >= SByte.MinValue && v <= SByte.MaxValue)
- return (sbyte) v;
- } else if (target_type == TypeManager.short_type){
- if (v >= Int16.MinValue && v <= UInt16.MaxValue)
- return (short) v;
- } else if (target_type == TypeManager.ushort_type){
- if (v >= UInt16.MinValue && v <= UInt16.MaxValue)
- return (ushort) v;
- } else if (target_type == TypeManager.int64_type)
- return (long) v;
- else if (target_type == TypeManager.uint64_type){
- if (v > 0)
- return (ulong) v;
- }
-
- } else if (c is UIntConstant){
- uint v = ((UIntConstant) c).Value;
-
- if (target_type == TypeManager.int32_type){
- if (v <= Int32.MaxValue)
- return (int) v;
- } else if (target_type == TypeManager.char_type){
- if (v >= Char.MinValue && v <= Char.MaxValue)
- return (char) v;
- } else if (target_type == TypeManager.byte_type){
- if (v <= Byte.MaxValue)
- return (byte) v;
- } else if (target_type == TypeManager.sbyte_type){
- if (v <= SByte.MaxValue)
- return (sbyte) v;
- } else if (target_type == TypeManager.short_type){
- if (v <= UInt16.MaxValue)
- return (short) v;
- } else if (target_type == TypeManager.ushort_type){
- if (v <= UInt16.MaxValue)
- return (ushort) v;
- } else if (target_type == TypeManager.int64_type)
- return (long) v;
- else if (target_type == TypeManager.uint64_type)
- return (ulong) v;
- } else if (c is LongConstant){
- long v = ((LongConstant) c).Value;
-
- if (target_type == TypeManager.int32_type){
- if (v >= UInt32.MinValue && v <= UInt32.MaxValue)
- return (int) v;
- } else if (target_type == TypeManager.uint32_type){
- if (v >= 0 && v <= UInt32.MaxValue)
- return (uint) v;
- } else if (target_type == TypeManager.char_type){
- if (v >= Char.MinValue && v <= Char.MaxValue)
- return (char) v;
- } else if (target_type == TypeManager.byte_type){
- if (v >= Byte.MinValue && v <= Byte.MaxValue)
- return (byte) v;
- } else if (target_type == TypeManager.sbyte_type){
- if (v >= SByte.MinValue && v <= SByte.MaxValue)
- return (sbyte) v;
- } else if (target_type == TypeManager.short_type){
- if (v >= Int16.MinValue && v <= UInt16.MaxValue)
- return (short) v;
- } else if (target_type == TypeManager.ushort_type){
- if (v >= UInt16.MinValue && v <= UInt16.MaxValue)
- return (ushort) v;
- } else if (target_type == TypeManager.uint64_type){
- if (v > 0)
- return (ulong) v;
- }
- } else if (c is ULongConstant){
- ulong v = ((ULongConstant) c).Value;
-
- if (target_type == TypeManager.int32_type){
- if (v <= Int32.MaxValue)
- return (int) v;
- } else if (target_type == TypeManager.uint32_type){
- if (v <= UInt32.MaxValue)
- return (uint) v;
- } else if (target_type == TypeManager.char_type){
- if (v >= Char.MinValue && v <= Char.MaxValue)
- return (char) v;
- } else if (target_type == TypeManager.byte_type){
- if (v >= Byte.MinValue && v <= Byte.MaxValue)
- return (byte) v;
- } else if (target_type == TypeManager.sbyte_type){
- if (v <= (int) SByte.MaxValue)
- return (sbyte) v;
- } else if (target_type == TypeManager.short_type){
- if (v <= UInt16.MaxValue)
- return (short) v;
- } else if (target_type == TypeManager.ushort_type){
- if (v <= UInt16.MaxValue)
- return (ushort) v;
- } else if (target_type == TypeManager.int64_type){
- if (v <= Int64.MaxValue)
- return (long) v;
- }
- } else if (c is ByteConstant){
- byte v = ((ByteConstant) c).Value;
-
- if (target_type == TypeManager.int32_type)
- return (int) v;
- else if (target_type == TypeManager.uint32_type)
- return (uint) v;
- else if (target_type == TypeManager.char_type)
- return (char) v;
- else if (target_type == TypeManager.sbyte_type){
- if (v <= SByte.MaxValue)
- return (sbyte) v;
- } else if (target_type == TypeManager.short_type)
- return (short) v;
- else if (target_type == TypeManager.ushort_type)
- return (ushort) v;
- else if (target_type == TypeManager.int64_type)
- return (long) v;
- else if (target_type == TypeManager.uint64_type)
- return (ulong) v;
- } else if (c is SByteConstant){
- sbyte v = ((SByteConstant) c).Value;
-
- if (target_type == TypeManager.int32_type)
- return (int) v;
- else if (target_type == TypeManager.uint32_type){
- if (v >= 0)
- return (uint) v;
- } else if (target_type == TypeManager.char_type){
- if (v >= 0)
- return (char) v;
- } else if (target_type == TypeManager.byte_type){
- if (v >= 0)
- return (byte) v;
- } else if (target_type == TypeManager.short_type)
- return (short) v;
- else if (target_type == TypeManager.ushort_type){
- if (v >= 0)
- return (ushort) v;
- } else if (target_type == TypeManager.int64_type)
- return (long) v;
- else if (target_type == TypeManager.uint64_type){
- if (v >= 0)
- return (ulong) v;
- }
- } else if (c is ShortConstant){
- short v = ((ShortConstant) c).Value;
-
- if (target_type == TypeManager.int32_type){
- return (int) v;
- } else if (target_type == TypeManager.uint32_type){
- if (v >= 0)
- return (uint) v;
- } else if (target_type == TypeManager.char_type){
- if (v >= 0)
- return (char) v;
- } else if (target_type == TypeManager.byte_type){
- if (v >= Byte.MinValue && v <= Byte.MaxValue)
- return (byte) v;
- } else if (target_type == TypeManager.sbyte_type){
- if (v >= SByte.MinValue && v <= SByte.MaxValue)
- return (sbyte) v;
- } else if (target_type == TypeManager.ushort_type){
- if (v >= 0)
- return (ushort) v;
- } else if (target_type == TypeManager.int64_type)
- return (long) v;
- else if (target_type == TypeManager.uint64_type)
- return (ulong) v;
- } else if (c is UShortConstant){
- ushort v = ((UShortConstant) c).Value;
-
- if (target_type == TypeManager.int32_type)
- return (int) v;
- else if (target_type == TypeManager.uint32_type)
- return (uint) v;
- else if (target_type == TypeManager.char_type){
- if (v >= Char.MinValue && v <= Char.MaxValue)
- return (char) v;
- } else if (target_type == TypeManager.byte_type){
- if (v >= Byte.MinValue && v <= Byte.MaxValue)
- return (byte) v;
- } else if (target_type == TypeManager.sbyte_type){
- if (v <= SByte.MaxValue)
- return (byte) v;
- } else if (target_type == TypeManager.short_type){
- if (v <= Int16.MaxValue)
- return (short) v;
- } else if (target_type == TypeManager.int64_type)
- return (long) v;
- else if (target_type == TypeManager.uint64_type)
- return (ulong) v;
-
- } else if (c is CharConstant){
- char v = ((CharConstant) c).Value;
-
- if (target_type == TypeManager.int32_type)
- return (int) v;
- else if (target_type == TypeManager.uint32_type)
- return (uint) v;
- else if (target_type == TypeManager.byte_type){
- if (v >= Byte.MinValue && v <= Byte.MaxValue)
- return (byte) v;
- } else if (target_type == TypeManager.sbyte_type){
- if (v <= SByte.MaxValue)
- return (sbyte) v;
- } else if (target_type == TypeManager.short_type){
- if (v <= Int16.MaxValue)
- return (short) v;
- } else if (target_type == TypeManager.ushort_type)
- return (short) v;
- else if (target_type == TypeManager.int64_type)
- return (long) v;
- else if (target_type == TypeManager.uint64_type)
- return (ulong) v;
-
- }
- c.Error_ConstantValueCannotBeConverted (loc, target_type);
- return null;
- }
//
// Load the object from the pointer.
child.Emit (ec);
}
+ public override Constant Increment ()
+ {
+ throw new NotSupportedException ();
+ }
+
public override bool IsDefaultValue {
get {
throw new NotImplementedException ();
return Child.GetValue ();
}
- public object GetValueAsEnumType ()
+ public override object GetTypedValue ()
{
+ // FIXME: runtime is not ready to work with just emited enums
+ if (!RootContext.StdLib) {
+ return Child.GetValue ();
+ }
+
return System.Enum.ToObject (type, Child.GetValue ());
}
-
- //
- // Converts from one of the valid underlying types for an enumeration
- // (int32, uint32, int64, uint64, short, ushort, byte, sbyte) to
- // one of the internal compiler literals: Int/UInt/Long/ULong Literals.
- //
- public Constant WidenToCompilerConstant ()
+
+ public override void Error_ValueCannotBeConverted (Location loc, Type t)
{
- Type t = TypeManager.EnumToUnderlying (Child.Type);
- object v = ((Constant) Child).GetValue ();;
-
- if (t == TypeManager.int32_type)
- return new IntConstant ((int) v);
- if (t == TypeManager.uint32_type)
- return new UIntConstant ((uint) v);
- if (t == TypeManager.int64_type)
- return new LongConstant ((long) v);
- if (t == TypeManager.uint64_type)
- return new ULongConstant ((ulong) v);
- if (t == TypeManager.short_type)
- return new ShortConstant ((short) v);
- if (t == TypeManager.ushort_type)
- return new UShortConstant ((ushort) v);
- if (t == TypeManager.byte_type)
- return new ByteConstant ((byte) v);
- if (t == TypeManager.sbyte_type)
- return new SByteConstant ((sbyte) v);
-
- throw new Exception ("Invalid enumeration underlying type: " + t);
+ Convert.Error_CannotImplicitConversion (loc, Type, t);
}
- //
- // Extracts the value in the enumeration on its native representation
- //
- public object GetPlainValue ()
- {
- Type t = TypeManager.EnumToUnderlying (Child.Type);
- object v = ((Constant) Child).GetValue ();;
-
- if (t == TypeManager.int32_type)
- return (int) v;
- if (t == TypeManager.uint32_type)
- return (uint) v;
- if (t == TypeManager.int64_type)
- return (long) v;
- if (t == TypeManager.uint64_type)
- return (ulong) v;
- if (t == TypeManager.short_type)
- return (short) v;
- if (t == TypeManager.ushort_type)
- return (ushort) v;
- if (t == TypeManager.byte_type)
- return (byte) v;
- if (t == TypeManager.sbyte_type)
- return (sbyte) v;
-
- return null;
- }
-
public override string AsString ()
{
return Child.AsString ();
return Child.ConvertToInt ();
}
+ public override Constant Increment()
+ {
+ return new EnumConstant (Child.Increment (), type);
+ }
+
public override bool IsDefaultValue {
get {
return Child.IsDefaultValue;
return Child.IsNegative;
}
}
+
+ public override Constant ToType (Type type, Location loc)
+ {
+ if (Type == type) {
+ // This is workaround of mono bug. It can be removed when the latest corlib spreads enough
+ if (TypeManager.IsEnumType (type.UnderlyingSystemType))
+ return this;
+
+ if (type.UnderlyingSystemType != Child.Type)
+ Child = Child.ToType (type.UnderlyingSystemType, loc);
+ return this;
+ }
+
+ if (!Convert.ImplicitStandardConversionExists (Convert.ConstantEC, this, type)){
+ Error_ValueCannotBeConverted (loc, type);
+ return null;
+ }
+
+ return Child.ToType (type, loc);
+ }
+
}
/// <summary>
/// </summary>
public class BoxedCast : EmptyCast {
- public BoxedCast (Expression expr)
- : base (expr, TypeManager.object_type)
- {
- eclass = ExprClass.Value;
- }
-
public BoxedCast (Expression expr, Type target_type)
: base (expr, target_type)
{
if (current_block != null){
LocalInfo vi = current_block.GetLocalInfo (Name);
if (vi != null){
- Expression var;
-
- var = new LocalVariableReference (ec.CurrentBlock, Name, loc);
-
- if (right_side != null)
+ LocalVariableReference var = new LocalVariableReference (ec.CurrentBlock, Name, loc);
+ if (right_side != null) {
return var.ResolveLValue (ec, right_side, loc);
- else
- return var.Resolve (ec);
+ } else {
+ ResolveFlags rf = ResolveFlags.VariableOrValue;
+ if (intermediate)
+ rf |= ResolveFlags.DisableFlowAnalysis;
+ return var.Resolve (ec, rf);
+ }
}
ParameterReference pref = current_block.Toplevel.GetParameterReference (Name, loc);
if (gen_params.Length != atypes.Length)
continue;
- list.Add (mi.BindGenericParameters (atypes));
+ list.Add (mi.MakeGenericMethod (atypes));
}
if (list.Count > 0) {
public override Expression ResolveMemberAccess (EmitContext ec, Expression left, Location loc,
SimpleName original)
{
- bool left_is_type = left is TypeExpr;
-
FieldInfo fi = FieldInfo.Mono_GetGenericFieldDefinition ();
- Type decl_type = fi.DeclaringType;
-
- bool is_emitted = fi is FieldBuilder;
- Type t = fi.FieldType;
-
- if (is_emitted) {
- Const c = TypeManager.LookupConstant ((FieldBuilder) fi);
-
- if (c != null) {
- object o;
- if (!c.LookupConstantValue (out o))
- return null;
-
- c.SetMemberIsUsed ();
- object real_value = ((Constant) c.Expr).GetValue ();
+ if (fi.IsLiteral) {
+ IConstant ic = TypeManager.GetConstant (fi);
+ if (ic == null) {
+ ic = new ExternalConstant (fi);
+ TypeManager.RegisterConstant (fi, ic);
+ }
- Expression exp = Constantify (real_value, t);
-
- if (!left_is_type &&
- (original == null || !original.IdenticalNameAndTypeName (ec, left, loc))) {
- Report.SymbolRelatedToPreviousError (c);
- error176 (loc, c.GetSignatureForError ());
- return null;
- }
-
- return exp;
+ bool left_is_type = left is TypeExpr;
+ if (!left_is_type && (original == null || !original.IdenticalNameAndTypeName (ec, left, loc))) {
+ Report.SymbolRelatedToPreviousError (FieldInfo);
+ error176 (loc, TypeManager.GetFullNameSignature (FieldInfo));
+ return null;
}
+
+ if (ic.ResolveValue ())
+ ic.CheckObsoleteness (loc);
+
+ return ic.Value;
}
+ bool is_emitted = fi is FieldBuilder;
+ Type t = fi.FieldType;
+
//
// Decimal constants cannot be encoded in the constant blob, and thus are marked
// as IsInitOnly ('readonly' in C# parlance). We get its value from the
return new DecimalConstant (((System.Runtime.CompilerServices.DecimalConstantAttribute) attrs [0]).Value);
}
- if (fi.IsLiteral) {
- object o;
-
- if (is_emitted)
- o = TypeManager.GetValue ((FieldBuilder) fi);
- else
- o = fi.GetValue (fi);
-
- if (decl_type.IsSubclassOf (TypeManager.enum_type)) {
- if (!left_is_type &&
- (original == null || !original.IdenticalNameAndTypeName (ec, left, loc))) {
- error176 (loc, TypeManager.GetFullNameSignature (FieldInfo));
- return null;
- }
-
- Expression enum_member = MemberLookup (
- ec, decl_type, "value__", MemberTypes.Field,
- AllBindingFlags | BindingFlags.NonPublic, loc);
-
- Enum en = TypeManager.LookupEnum (decl_type);
-
- Constant c;
- if (en != null)
- c = Constantify (o, en.UnderlyingType);
- else
- c = Constantify (o, enum_member.Type);
-
- return new EnumConstant (c, decl_type);
- }
-
- Expression exp = Constantify (o, t);
-
- if (!left_is_type) {
- error176 (loc, TypeManager.GetFullNameSignature (FieldInfo));
- return null;
- }
-
- return exp;
- }
-
if (t.IsPointer && !ec.InUnsafe) {
UnsafeError (loc);
return null;
ObsoleteAttribute oa;
FieldBase f = TypeManager.GetField (FieldInfo);
if (f != null) {
- oa = f.GetObsoleteAttribute (f.Parent);
- if (oa != null)
- AttributeTester.Report_ObsoleteMessage (oa, f.GetSignatureForError (), loc);
+ f.CheckObsoleteness (loc);
// To be sure that type is external because we do not register generated fields
} else if (!(FieldInfo.DeclaringType is TypeBuilder)) {
oa = AttributeTester.GetMemberObsoleteAttribute (FieldInfo);
return true;
}
+
+ void Error_PropertyNotFound (MethodInfo mi, bool getter)
+ {
+ // TODO: correctly we should compare arguments but it will lead to bigger changes
+ if (mi is MethodBuilder) {
+ Error_TypeDoesNotContainDefinition (loc, PropertyInfo.DeclaringType, Name);
+ return;
+ }
+
+ StringBuilder sig = new StringBuilder (TypeManager.CSharpName (mi.DeclaringType));
+ sig.Append ('.');
+ ParameterData iparams = TypeManager.GetParameterData (mi);
+ sig.Append (getter ? "get_" : "set_");
+ sig.Append (Name);
+ sig.Append (iparams.GetSignatureForError ());
+
+ Report.SymbolRelatedToPreviousError (mi);
+ Report.Error (1546, loc, "Property `{0}' is not supported by the C# language. Try to call the accessor method `{1}' directly",
+ Name, sig.ToString ());
+ }
override public Expression DoResolve (EmitContext ec)
{
if (getter != null){
if (TypeManager.GetArgumentTypes (getter).Length != 0){
- Report.Error (
- 117, loc, "`{0}' does not contain a " +
- "definition for `{1}'.", getter.DeclaringType,
- Name);
+ Error_PropertyNotFound (getter, true);
return null;
}
}
}
if (TypeManager.GetArgumentTypes (setter).Length != 1){
- Report.Error (
- 117, loc, "`{0}' does not contain a " +
- "definition for `{1}'.", getter.DeclaringType,
- Name);
+ Error_PropertyNotFound (setter, false);
return null;
}
projects / mono.git / blobdiff