/// The AddressOf method should generate code that loads
/// the address of the object and leaves it on the stack.
///
- /// The `mode' argument is used to notify the expression
+ /// The 'mode' argument is used to notify the expression
/// of whether this will be used to read from the address or
/// write to the address.
///
bool IsAssigned (EmitContext ec, Location loc);
/// <summary>
- /// Checks whether field `name' in this struct has been assigned.
+ /// Checks whether field 'name' in this struct has been assigned.
/// </summary>
bool IsFieldAssigned (EmitContext ec, string name, Location loc);
void SetAssigned (EmitContext ec);
/// <summary>
- /// Tells the flow analysis code that field `name' in this struct
+ /// Tells the flow analysis code that field 'name' in this struct
/// has already been assigned atthe current code position.
/// </summary>
void SetFieldAssigned (EmitContext ec, string name);
/// <summary>
/// Utility wrapper routine for Warning, only prints the warning if
- /// warnings of level `level' are enabled.
+ /// warnings of level 'level' are enabled.
/// </summary>
public void Warning (int warning, int level, string s)
{
/// There are two side effects expected from calling
/// Resolve(): the the field variable "eclass" should
/// be set to any value of the enumeration
- /// `ExprClass' and the type variable should be set
+ /// 'ExprClass' and the type variable should be set
/// to a valid type (this is the type of the
/// expression).
/// </remarks>
ec.ContainerType, ec.ContainerType, AllMemberTypes,
AllBindingFlags | BindingFlags.NonPublic, s.Name);
if (lookup != null)
- Error (122, "`" + s.Name + "' " +
+ Error (30390, "'" + s.Name + "' " +
"is inaccessible because of its protection level");
else
- Error (103, "The name `" + s.Name + "' could not be " +
- "found in `" + ec.DeclSpace.Name + "'");
+ Error (30451, "The name '" + s.Name + "' could not be " +
+ "found in '" + ec.DeclSpace.Name + "'");
return null;
}
SimpleName s = (SimpleName) e;
Report.Error (
- 103, loc,
- "The name `" + s.Name + "' could not be found in `" +
+ 30451, loc,
+ "The name '" + s.Name + "' could not be found in '" +
ec.DeclSpace.Name + "'");
return null;
}
// FIXME: Probably implement a cache for (t,name,current_access_set)?
//
// This code could use some optimizations, but we need to do some
- // measurements. For example, we could use a delegate to `flag' when
+ // measurements. For example, we could use a delegate to 'flag' when
// something can not any longer be a method-group (because it is something
// else).
//
//
// null on error.
//
- // FIXME: When calling MemberLookup inside an `Invocation', we should pass
+ // FIXME: When calling MemberLookup inside an 'Invocation', we should pass
// the arguments here and have MemberLookup return only the methods that
// match the argument count/type, unlike we are doing now (we delay this
// decision).
}
//
- // Lookup type `t' for code in class `invocation_type'. Note that it's important
- // to set `invocation_type' correctly since this method also checks whether the
- // invoking class is allowed to access the member in class `t'. When you want to
- // explicitly do a lookup in the base class, you must set both `t' and `invocation_type'
+ // Lookup type 't' for code in class 'invocation_type'. Note that it's important
+ // to set 'invocation_type' correctly since this method also checks whether the
+ // invoking class is allowed to access the member in class 't'. When you want to
+ // explicitly do a lookup in the base class, you must set both 't' and 'invocation_type'
// to the base class (although a derived class can access protected members of its base
// class it cannot do so through an instance of the base class (error CS1540)).
//
public static Expression MemberLookup (EmitContext ec, Type t, string name, Location loc)
{
- return MemberLookup (ec, ec.ContainerType, t, name,
- AllMemberTypes, AllBindingFlags, loc);
+ return MemberLookup (ec, ec.ContainerType, t, name, AllMemberTypes, AllBindingFlags, loc);
}
public static Expression MethodLookup (EmitContext ec, Type t, string name, Location loc)
AllBindingFlags | BindingFlags.NonPublic, loc);
if (e == null){
Report.Error (
- 117, loc, "`" + t + "' does not contain a definition " +
- "for `" + name + "'");
+ 30456, loc, "'" + t + "' does not contain a definition " +
+ "for '" + name + "'");
} else {
Report.Error (
- 122, loc, "`" + t + "." + name +
+ 30390, loc, "'" + t + "." + name +
"' is inaccessible due to its protection level");
}
//
// Attempt to do the implicit constant expression conversions
- if (expr is IntConstant){
+ if (expr is BoolConstant || expr is IntConstant || expr is LongConstant || expr is DoubleConstant || expr is FloatConstant){
Expression e;
- e = TryImplicitIntConversion (target_type, (IntConstant) expr);
+ e = TryImplicitNumericConversion (target_type, (Constant) expr);
if (e != null)
return e;
- } else if (expr is LongConstant && target_type == TypeManager.uint64_type){
+ if (target_type == TypeManager.byte_type ||
+ target_type == TypeManager.short_type ||
+ target_type == TypeManager.int32_type ||
+ target_type == TypeManager.int64_type ||
+ target_type == TypeManager.float_type) {
+
+ string val = null;
+ if (expr is IntConstant)
+ val = ((IntConstant) expr).Value.ToString();
+ if (expr is LongConstant)
+ val = ((LongConstant) expr).Value.ToString();
+ if (expr is FloatConstant)
+ val = ((FloatConstant) expr).Value.ToString();
+ if (expr is DoubleConstant)
+ val = ((DoubleConstant) expr).Value.ToString();
+ Error_ConstantValueCannotBeConverted(loc, val, target_type);
+ return null;
+ }
+ } else if (expr is LongConstant && target_type == TypeManager.uint64_type) {
//
// Try the implicit constant expression conversion
// from long to ulong, instead of a nice routine,
Type real_target_type = target_type;
- if (expr_type == TypeManager.sbyte_type){
+ if (target_type == TypeManager.bool_type) {
+
+ if (expr_type == TypeManager.decimal_type) {
+ return RTConversionExpression (ec, "System.Convert",".ToBoolean" , expr, loc);
+ }
+
+ if ((expr_type != TypeManager.char_type) &&
+ (expr_type != TypeManager.string_type))
+ return new NumericToBoolCast (expr, expr.Type);
+ }
+
+ if (expr_type == TypeManager.bool_type){
+ //
+ if (real_target_type == TypeManager.sbyte_type)
+ return new BoolToNumericCast (expr, target_type);
+ if (real_target_type == TypeManager.byte_type)
+ return new BoolToNumericCast (expr, target_type);
+ if (real_target_type == TypeManager.int32_type)
+ return new BoolToNumericCast (expr, target_type);
+ if (real_target_type == TypeManager.int64_type)
+ return new BoolToNumericCast (expr, target_type);
+ if (real_target_type == TypeManager.double_type)
+ return new BoolToNumericCast (expr, target_type);
+ if (real_target_type == TypeManager.float_type)
+ return new BoolToNumericCast (expr, target_type);
+ if (real_target_type == TypeManager.short_type)
+ return new BoolToNumericCast (expr, target_type);
+ if (real_target_type == TypeManager.decimal_type)
+ return RTConversionExpression(ec, "DecimalType.FromBoolean", expr, loc);
+ } else if (expr_type == TypeManager.sbyte_type){
//
// From sbyte to short, int, long, float, double.
//
return new OpcodeCast (expr, target_type, OpCodes.Conv_R4);
if (real_target_type == TypeManager.double_type)
return new OpcodeCast (expr, target_type, OpCodes.Conv_R8);
+ } else if (expr_type == TypeManager.string_type){
+
+ if (real_target_type == TypeManager.bool_type)
+ return RTConversionExpression (ec, "BooleanType.FromString" , expr, loc);
+ if (real_target_type == TypeManager.decimal_type)
+ return RTConversionExpression (ec, "DecimalType.FromString" , expr, loc);
+ if (real_target_type == TypeManager.float_type)
+ return RTConversionExpression (ec, "SingleType.FromString" , expr, loc);
+ if (real_target_type == TypeManager.short_type)
+ return RTConversionExpression (ec, "ShortType.FromString" , expr, loc);
+ if (real_target_type == TypeManager.int64_type)
+ return RTConversionExpression (ec, "LongType.FromString" , expr, loc);
+ if (real_target_type == TypeManager.int32_type)
+ return RTConversionExpression (ec, "IntegerType.FromString" , expr, loc);
+ if (real_target_type == TypeManager.double_type)
+ return RTConversionExpression (ec, "DoubleType.FromString" , expr, loc);
+ if (real_target_type == TypeManager.byte_type)
+ return RTConversionExpression (ec, "ByteType.FromString" , expr, loc);
} else if (expr_type == TypeManager.float_type){
//
// float to double
//
+ if (real_target_type == TypeManager.decimal_type)
+ return RTConversionExpression (ec, "System.Convert", ".ToDecimal" , expr, loc);
if (real_target_type == TypeManager.double_type)
return new OpcodeCast (expr, target_type, OpCodes.Conv_R8);
- }
+
+ } else if (expr_type == TypeManager.double_type){
+
+ if (real_target_type == TypeManager.decimal_type)
+ return RTConversionExpression (ec, "System.Convert", ".ToDecimal" , expr, loc);
+ } else if (expr_type == TypeManager.decimal_type){
+
+ if (real_target_type == TypeManager.bool_type)
+ return RTConversionExpression (ec, "BooleanType.FromDecimal" , expr, loc);
+ if (real_target_type == TypeManager.short_type)
+ return RTConversionExpression(ec, "System.Convert", ".ToInt16", expr, loc);
+ if (real_target_type == TypeManager.byte_type)
+ return RTConversionExpression(ec, "System.Convert", ".ToByte", expr, loc);
+ if (real_target_type == TypeManager.int32_type)
+ return RTConversionExpression(ec, "System.Convert", ".ToInt32", expr, loc);
+ if (real_target_type == TypeManager.int64_type)
+ return RTConversionExpression(ec, "System.Convert", ".ToInt64", expr, loc);
+ if (real_target_type == TypeManager.float_type)
+ return RTConversionExpression(ec, "System.Convert", ".ToSingle", expr, loc);
+ if (real_target_type == TypeManager.double_type)
+ return RTConversionExpression(ec, "System.Convert", ".ToDouble", expr, loc);
+ if (real_target_type == TypeManager.char_type)
+ return RTConversionExpression(ec, "System.Convert", ".ToChar", expr, loc);
+ }
return null;
}
// Tests whether an implicit reference conversion exists between expr_type
// and target_type
//
- public static bool ImplicitReferenceConversionExists (Expression expr, Type target_type)
+ public static bool ImplicitReferenceConversionExists (Expression expr, Type expr_type, Type target_type)
{
- Type expr_type = expr.Type;
-
//
// This is the boxed case.
//
if (StandardConversionExists (expr, target_type) == true)
return true;
+#if false
Expression dummy = ImplicitUserConversion (ec, expr, target_type, Location.Null);
if (dummy != null)
return true;
+#endif
return false;
}
/// </summary>
public static bool StandardConversionExists (Expression expr, Type target_type)
{
- Type expr_type = expr.Type;
+ return WideningConversionExists (expr, expr.type, target_type);
+ }
+
+ public static bool WideningConversionExists (Type expr_type, Type target_type)
+ {
+ return WideningConversionExists (null, expr_type, target_type);
+ }
+
+ public static bool WideningConversionExists (Expression expr, Type target_type)
+ {
+ return WideningConversionExists (expr, expr.Type, target_type);
+ }
+
+ public static bool WideningConversionExists (Expression expr, Type expr_type, Type target_type)
+ {
if (expr_type == null || expr_type == TypeManager.void_type)
return false;
if (expr_type == target_type)
return true;
- // First numeric conversions
+ // Conversions from enum to underlying type are widening.
+ if (expr_type.IsSubclassOf (TypeManager.enum_type))
+ expr_type = TypeManager.EnumToUnderlying (expr_type);
+
+ if (expr_type == target_type)
+ return true;
+ // First numeric conversions
+
if (expr_type == TypeManager.sbyte_type){
//
// From sbyte to short, int, long, float, double.
// From byte to short, ushort, int, uint, long, ulong, float, double
//
if ((target_type == TypeManager.short_type) ||
+ (target_type == TypeManager.bool_type) ||
(target_type == TypeManager.ushort_type) ||
(target_type == TypeManager.int32_type) ||
(target_type == TypeManager.uint32_type) ||
// From short to int, long, float, double
//
if ((target_type == TypeManager.int32_type) ||
+ (target_type == TypeManager.bool_type) ||
(target_type == TypeManager.int64_type) ||
(target_type == TypeManager.double_type) ||
(target_type == TypeManager.float_type) ||
// From int to long, float, double
//
if ((target_type == TypeManager.int64_type) ||
+ (target_type == TypeManager.bool_type) ||
(target_type == TypeManager.double_type) ||
(target_type == TypeManager.float_type) ||
(target_type == TypeManager.decimal_type))
// From uint to long, ulong, float, double
//
if ((target_type == TypeManager.int64_type) ||
+ (target_type == TypeManager.bool_type) ||
(target_type == TypeManager.uint64_type) ||
(target_type == TypeManager.double_type) ||
(target_type == TypeManager.float_type) ||
// From long/ulong to float, double
//
if ((target_type == TypeManager.double_type) ||
+ (target_type == TypeManager.bool_type) ||
(target_type == TypeManager.float_type) ||
(target_type == TypeManager.decimal_type))
return true;
(target_type == TypeManager.int64_type) ||
(target_type == TypeManager.float_type) ||
(target_type == TypeManager.double_type) ||
+ (target_type == TypeManager.string_type) ||
(target_type == TypeManager.decimal_type))
return true;
+ } else if (expr_type == TypeManager.decimal_type) {
+ if (target_type == TypeManager.float_type ||
+ target_type == TypeManager.double_type)
+ return true;
} else if (expr_type == TypeManager.float_type){
//
- // float to double
+ // float to double, decimal
//
if (target_type == TypeManager.double_type)
return true;
- }
+ } else if (expr_type == TypeManager.double_type){
+
+ if ((target_type == TypeManager.bool_type))
+ return true;
+ }
- if (ImplicitReferenceConversionExists (expr, target_type))
+ if (ImplicitReferenceConversionExists (expr, expr_type, target_type))
return true;
if (expr is IntConstant){
//
// If any operator converts from S then Sx = S
//
- Type source_type = source.Type;
+ Type source_type= source.Type;
foreach (MethodBase mb in me.Methods){
ParameterData pd = Invocation.GetParameterData (mb);
Type param_type = pd.ParameterType (0);
/// <summary>
/// Computes the MethodGroup for the user-defined conversion
- /// operators from source_type to target_type. `look_for_explicit'
+ /// operators from source_type to target_type. 'look_for_explicit'
/// controls whether we should also include the list of explicit
/// operators
/// </summary>
}
/// <summary>
- /// Converts implicitly the resolved expression `expr' into the
- /// `target_type'. It returns a new expression that can be used
- /// in a context that expects a `target_type'.
+ /// Converts implicitly the resolved expression 'expr' into the
+ /// 'target_type'. It returns a new expression that can be used
+ /// in a context that expects a 'target_type'.
/// </summary>
static public Expression ConvertImplicit (EmitContext ec, Expression expr,
Type target_type, Location loc)
Type expr_type = expr.Type;
Expression e;
+
if (expr_type == target_type)
return expr;
e = ConvertImplicitStandard (ec, expr, target_type, loc);
if (e != null)
return e;
-
+
e = ImplicitUserConversion (ec, expr, target_type, loc);
+
if (e != null)
return e;
- e = RuntimeConversion (ec, expr, target_type, loc);
+ e = NarrowingConversion (ec, expr, target_type, loc);
if (e != null)
return e;
}
/// <summary>
- /// Converts the resolved expression `expr' into the
- /// `target_type' using the Microsoft.VisualBasic runtime.
+ /// Converts the resolved expression 'expr' into the
+ /// 'target_type' using the Microsoft.VisualBasic runtime.
/// It returns a new expression that can be used
- /// in a context that expects a `target_type'.
+ /// in a context that expects a 'target_type'.
/// </summary>
static private Expression RTConversionExpression (EmitContext ec, string s, Expression expr, Location loc)
{
e = e.Resolve(ec);
return (e);
}
+
+ static private Expression RTConversionExpression (EmitContext ec, string ns, string method, Expression expr, Location loc)
+ {
+ Expression etmp, e;
+ ArrayList args;
+ Argument arg;
+
+ etmp = Mono.MonoBASIC.Parser.DecomposeQI(ns+method, loc);
+ args = new ArrayList();
+ arg = new Argument (expr, Argument.AType.Expression);
+ args.Add (arg);
+ e = (Expression) new Invocation (etmp, args, loc);
+ e = e.Resolve(ec);
+ return (e);
+ }
+
- static public bool RuntimeConversionExists (EmitContext ec, Expression expr, Type target_type)
+ static public bool NarrowingConversionExists (EmitContext ec, Expression expr, Type target_type)
{
- return (RuntimeConversion (ec, expr, target_type,Location.Null)) != null;
+ Type expr_type = expr.Type;
+
+ if (target_type == TypeManager.sbyte_type){
+ //
+ // To sbyte from short, int, long, float, double.
+ //
+ if ((expr_type == TypeManager.int32_type) ||
+ (expr_type == TypeManager.int64_type) ||
+ (expr_type == TypeManager.double_type) ||
+ (expr_type == TypeManager.float_type) ||
+ (expr_type == TypeManager.short_type) ||
+ (expr_type == TypeManager.decimal_type))
+ return true;
+
+ } else if (target_type == TypeManager.byte_type){
+ //
+ // To byte from short, ushort, int, uint, long, ulong, float, double
+ //
+ if ((expr_type == TypeManager.short_type) ||
+ (expr_type == TypeManager.ushort_type) ||
+ (expr_type == TypeManager.int32_type) ||
+ (expr_type == TypeManager.uint32_type) ||
+ (expr_type == TypeManager.uint64_type) ||
+ (expr_type == TypeManager.int64_type) ||
+ (expr_type == TypeManager.float_type) ||
+ (expr_type == TypeManager.double_type) ||
+ (expr_type == TypeManager.decimal_type))
+ return true;
+
+ } else if (target_type == TypeManager.short_type){
+ //
+ // To short from int, long, float, double
+ //
+ if ((expr_type == TypeManager.int32_type) ||
+ (expr_type == TypeManager.int64_type) ||
+ (expr_type == TypeManager.double_type) ||
+ (expr_type == TypeManager.float_type) ||
+ (expr_type == TypeManager.decimal_type))
+ return true;
+
+ } else if (target_type == TypeManager.ushort_type){
+ //
+ // To ushort from int, uint, long, ulong, float, double
+ //
+ if ((expr_type == TypeManager.uint32_type) ||
+ (expr_type == TypeManager.uint64_type) ||
+ (expr_type == TypeManager.int32_type) ||
+ (expr_type == TypeManager.int64_type) ||
+ (expr_type == TypeManager.double_type) ||
+ (expr_type == TypeManager.float_type) ||
+ (expr_type == TypeManager.decimal_type))
+ return true;
+
+ } else if (target_type == TypeManager.int32_type){
+ //
+ // To int from long, float, double
+ //
+ if ((expr_type == TypeManager.int64_type) ||
+ (expr_type == TypeManager.double_type) ||
+ (expr_type == TypeManager.float_type) ||
+ (expr_type == TypeManager.decimal_type))
+ return true;
+
+ } else if (target_type == TypeManager.uint32_type){
+ //
+ // To uint from long, ulong, float, double
+ //
+ if ((expr_type == TypeManager.int64_type) ||
+ (expr_type == TypeManager.uint64_type) ||
+ (expr_type == TypeManager.double_type) ||
+ (expr_type == TypeManager.float_type) ||
+ (expr_type == TypeManager.decimal_type))
+ return true;
+
+ } else if ((target_type == TypeManager.uint64_type) ||
+ (target_type == TypeManager.int64_type)) {
+ //
+ // To long/ulong from float, double
+ //
+ if ((expr_type == TypeManager.double_type) ||
+ (expr_type == TypeManager.float_type) ||
+ (expr_type == TypeManager.decimal_type))
+ return true;
+
+ } else if (target_type == TypeManager.char_type){
+ //
+ // To char from ushort, int, uint, long, ulong, float, double, decimal,string
+ //
+ if ((expr_type == TypeManager.ushort_type) ||
+ (expr_type == TypeManager.int32_type) ||
+ (expr_type == TypeManager.uint32_type) ||
+ (expr_type == TypeManager.uint64_type) ||
+ (expr_type == TypeManager.int64_type) ||
+ (expr_type == TypeManager.float_type) ||
+ (expr_type == TypeManager.double_type) ||
+ (expr_type == TypeManager.decimal_type) ||
+ (expr_type == TypeManager.string_type))
+
+ return true;
+
+ } else if (target_type == TypeManager.float_type){
+ //
+ // To float from double
+ //
+ if (expr_type == TypeManager.double_type)
+ return true;
+ }
+
+ return (NarrowingConversion (ec, expr, target_type,Location.Null)) != null;
}
- static public Expression RuntimeConversion (EmitContext ec, Expression expr,
+ static public Expression NarrowingConversion (EmitContext ec, Expression expr,
Type target_type, Location loc)
{
Type expr_type = expr.Type;
+
+ if (target_type == TypeManager.sbyte_type){
+ //
+ // To sbyte from short, int, long, float, double.
+ //
+ if (expr_type == TypeManager.int32_type)
+ return new ConvCast (ec, expr, target_type, ConvCast.Mode.I4_I1);
+ if (expr_type == TypeManager.int64_type)
+ return new ConvCast (ec, expr, target_type, ConvCast.Mode.I8_I1);
+ if (expr_type == TypeManager.short_type)
+ return new ConvCast (ec, expr, target_type, ConvCast.Mode.I2_I1);
+
+ if (expr_type == TypeManager.float_type) {
+ Expression rounded_expr = RTConversionExpression(ec, "System.Math", ".Round", expr, loc);
+ return new ConvCast (ec, rounded_expr, target_type, ConvCast.Mode.R4_I1);
+ }
+ if (expr_type == TypeManager.double_type) {
+ Expression rounded_expr = RTConversionExpression(ec, "System.Math", ".Round", expr, loc);
+ return new ConvCast (ec, rounded_expr, target_type, ConvCast.Mode.R8_I1);
+ }
+
+ } else if (target_type == TypeManager.byte_type){
+ //
+ // To byte from short, ushort, int, uint, long, ulong, float, double
+ //
+ if (expr_type == TypeManager.short_type)
+ return new ConvCast (ec, expr, target_type, ConvCast.Mode.I2_U1);
+ if (expr_type == TypeManager.ushort_type)
+ return new ConvCast (ec, expr, target_type, ConvCast.Mode.U2_U1);
+ if (expr_type == TypeManager.int32_type)
+ return new ConvCast (ec, expr, target_type, ConvCast.Mode.I4_U1);
+ if (expr_type == TypeManager.uint32_type)
+ return new ConvCast (ec, expr, target_type, ConvCast.Mode.U4_U1);
+ if (expr_type == TypeManager.uint64_type)
+ return new ConvCast (ec, expr, target_type, ConvCast.Mode.U8_U1);
+ if (expr_type == TypeManager.int64_type)
+ return new ConvCast (ec, expr, target_type, ConvCast.Mode.I8_U1);
+
+ if (expr_type == TypeManager.float_type) {
+ Expression rounded_expr = RTConversionExpression(ec, "System.Math", ".Round", expr, loc);
+ return new ConvCast (ec, rounded_expr, target_type, ConvCast.Mode.R4_U1);
+ }
+ if (expr_type == TypeManager.double_type) {
+ Expression rounded_expr = RTConversionExpression(ec, "System.Math", ".Round", expr, loc);
+ return new ConvCast (ec, rounded_expr, target_type, ConvCast.Mode.R8_U1);
+ }
+
+ } else if (target_type == TypeManager.short_type) {
+ //
+ // To short from int, long, float, double
+ //
+ if (expr_type == TypeManager.int32_type)
+ return new ConvCast (ec, expr, target_type, ConvCast.Mode.I4_I2);
+ if (expr_type == TypeManager.int64_type)
+ return new ConvCast (ec, expr, target_type, ConvCast.Mode.I8_I2);
+
+ if (expr_type == TypeManager.float_type) {
+ Expression rounded_expr = RTConversionExpression(ec, "System.Math", ".Round", expr, loc);
+ return new ConvCast (ec, rounded_expr, target_type, ConvCast.Mode.R4_I2);
+ }
+ if (expr_type == TypeManager.double_type) {
+ Expression rounded_expr = RTConversionExpression(ec, "System.Math", ".Round", expr, loc);
+ return new ConvCast (ec, rounded_expr, target_type, ConvCast.Mode.R8_I2);
+ }
+
+ } else if (target_type == TypeManager.ushort_type) {
+ //
+ // To ushort from int, uint, long, ulong, float, double
+ //
+ if (expr_type == TypeManager.uint32_type)
+ return new ConvCast (ec, expr, target_type, ConvCast.Mode.U4_U2);
+ if (expr_type == TypeManager.uint64_type)
+ return new ConvCast (ec, expr, target_type, ConvCast.Mode.U8_U2);
+ if (expr_type == TypeManager.int32_type)
+ return new ConvCast (ec, expr, target_type, ConvCast.Mode.I4_U2);
+ if (expr_type == TypeManager.int64_type)
+ return new ConvCast (ec, expr, target_type, ConvCast.Mode.I8_U2);
+
+ if (expr_type == TypeManager.float_type) {
+ Expression rounded_expr = RTConversionExpression(ec, "System.Math", ".Round", expr, loc);
+ return new ConvCast (ec, rounded_expr, target_type, ConvCast.Mode.R4_U2);
+ }
+
+ if (expr_type == TypeManager.double_type) {
+ Expression rounded_expr = RTConversionExpression(ec, "System.Math", ".Round", expr, loc);
+ return new ConvCast (ec, rounded_expr, target_type, ConvCast.Mode.R8_U2);
+ }
+
+ } else if (target_type == TypeManager.int32_type){
+ //
+ // To int from long, float, double
+ //
+ if (expr_type == TypeManager.int64_type)
+ return new ConvCast (ec, expr, target_type, ConvCast.Mode.I8_I4);
+
+ if (expr_type == TypeManager.float_type) {
+ Expression rounded_expr = RTConversionExpression(ec, "System.Math", ".Round", expr, loc);
+ return new ConvCast (ec, rounded_expr, target_type, ConvCast.Mode.R4_I4);
+ }
+ if (expr_type == TypeManager.double_type) {
+ Expression rounded_expr = RTConversionExpression(ec, "System.Math", ".Round", expr, loc);
+ return new ConvCast (ec, rounded_expr, target_type, ConvCast.Mode.R8_I4);
+ }
+
+ } else if (target_type == TypeManager.uint32_type){
+ //
+ // To uint from long, ulong, float, double
+ //
+ if (expr_type == TypeManager.int64_type)
+ return new ConvCast (ec, expr, target_type, ConvCast.Mode.I8_U4);
+ if (expr_type == TypeManager.uint64_type)
+ return new ConvCast (ec, expr, target_type, ConvCast.Mode.U8_I4);
+ if (expr_type == TypeManager.float_type) {
+ Expression rounded_expr = RTConversionExpression(ec, "System.Math", ".Round", expr, loc);
+ return new ConvCast (ec, rounded_expr, target_type, ConvCast.Mode.R4_U4);
+ }
+ if (expr_type == TypeManager.double_type) {
+ Expression rounded_expr = RTConversionExpression(ec, "System.Math", ".Round", expr, loc);
+ return new ConvCast (ec, rounded_expr, target_type, ConvCast.Mode.R8_U4);
+ }
+
+ } else if (target_type == TypeManager.uint64_type) {
+ //
+ // To long/ulong from float, double
+ //
+ if (expr_type == TypeManager.float_type) {
+ Expression rounded_expr = RTConversionExpression(ec, "System.Math", ".Round", expr, loc);
+ return new ConvCast (ec, rounded_expr, target_type, ConvCast.Mode.R4_U8);
+ }
+ if (expr_type == TypeManager.double_type) {
+ Expression rounded_expr = RTConversionExpression(ec, "System.Math", ".Round", expr, loc);
+ return new ConvCast (ec, rounded_expr, target_type, ConvCast.Mode.R8_U8);
+ }
+
+ } else if (target_type == TypeManager.int64_type) {
+ //
+ // To long/ulong from float, double
+ //
+ if (expr_type == TypeManager.float_type) {
+ Expression rounded_expr = RTConversionExpression(ec, "System.Math", ".Round", expr, loc);
+ return new ConvCast (ec, rounded_expr, target_type, ConvCast.Mode.R4_I8);
+ }
+ if (expr_type == TypeManager.double_type) {
+ Expression rounded_expr = RTConversionExpression(ec, "System.Math", ".Round", expr, loc);
+ return new ConvCast (ec, rounded_expr, target_type, ConvCast.Mode.R8_I8);
+ }
+
+ } else if (target_type == TypeManager.char_type){
+ //
+ // To char from ushort, int, uint, long, ulong, float, double
+ //
+ if (expr_type == TypeManager.ushort_type)
+ return new ConvCast (ec, expr, target_type, ConvCast.Mode.U2_CH);
+ if (expr_type == TypeManager.int32_type)
+ return new ConvCast (ec, expr, target_type, ConvCast.Mode.I4_CH);
+ if (expr_type == TypeManager.uint32_type)
+ return new ConvCast (ec, expr, target_type, ConvCast.Mode.U4_CH);
+ if (expr_type == TypeManager.uint64_type)
+ return new ConvCast (ec, expr, target_type, ConvCast.Mode.U8_CH);
+ if (expr_type == TypeManager.int64_type)
+ return new ConvCast (ec, expr, target_type, ConvCast.Mode.I8_CH);
+
+ if (expr_type == TypeManager.float_type) {
+ Expression rounded_expr = RTConversionExpression(ec, "System.Math", ".Round", expr, loc);
+ return new ConvCast (ec, rounded_expr, target_type, ConvCast.Mode.R4_CH);
+ }
+ if (expr_type == TypeManager.double_type) {
+ Expression rounded_expr = RTConversionExpression(ec, "System.Math", ".Round", expr, loc);
+ return new ConvCast (ec, rounded_expr, target_type, ConvCast.Mode.R8_CH);
+ }
+
+ } else if (target_type == TypeManager.float_type){
+ //
+ // To float from double
+ //
+ if (expr_type == TypeManager.double_type)
+ return new ConvCast (ec, expr, target_type, ConvCast.Mode.R8_R4);
+ }
+
TypeCode dest_type = Type.GetTypeCode (target_type);
TypeCode src_type = Type.GetTypeCode (expr_type);
Expression e = null;
- // VB.NET Objects can be converted to anything by default
- // unless, that is, an exception at runtime blows it all
- if (src_type == TypeCode.Object) {
- Expression cast_type = Mono.MonoBASIC.Parser.DecomposeQI(target_type.ToString(), loc);
- Cast ce = new Cast (cast_type, expr, loc);
- return ce.Resolve (ec);
- }
-
switch (dest_type) {
case TypeCode.String:
switch (src_type) {
case TypeCode.Byte:
// Ok, this *is* broken
e = RTConversionExpression(ec, "ByteType.FromObject", expr, loc);
- break;
+ break;
+ case TypeCode.DateTime:
+ switch (src_type) {
+ case TypeCode.String:
+ e = RTConversionExpression(ec, "DateType.FromString", expr, loc);
+ break;
+ case TypeCode.Object:
+ e = RTConversionExpression(ec, "DateType.FromObject", expr, loc);
+ break;
+ }
+ break;
+ case TypeCode.Char:
+ switch (src_type) {
+
+ case TypeCode.String:
+ e = RTConversionExpression(ec, "CharType.FromString", expr, loc);
+ break;
+
+ }
+ break;
}
// We must examine separately some types that
if (expr_type == typeof(System.String) && target_type == typeof (System.Char[])) {
e = RTConversionExpression(ec, "CharArrayType.FromString", expr, loc);
}
-
- return e;
+ if (e != null)
+ return e;
+ // VB.NET Objects can be converted to anything by default
+ // unless, that is, an exception at runtime blows it all
+ if (src_type == TypeCode.Object) {
+ Expression cast_type = Mono.MonoBASIC.Parser.DecomposeQI(target_type.ToString(), loc);
+ Cast ce = new Cast (cast_type, expr, loc);
+ ce.IsRuntimeCast = true;
+ return ce.Resolve (ec);
+ }
+ return null;
+ }
+
+ static public Expression ConvertNothingToDefaultValues (EmitContext ec, Expression expr,
+ Type target_type, Location loc)
+ {
+ switch (Type.GetTypeCode (target_type)) {
+ case TypeCode.Boolean :
+ return new BoolConstant (false);
+ case TypeCode.Byte :
+ return new ByteConstant (0);
+ case TypeCode.Char :
+ return new CharConstant ((char)0);
+ case TypeCode.SByte :
+ return new SByteConstant (0);
+ case TypeCode.Int16 :
+ return new ShortConstant (0);
+ case TypeCode.Int32 :
+ return new IntConstant (0);
+ case TypeCode.Int64 :
+ return new LongConstant (0);
+ case TypeCode.Decimal :
+ return new DecimalConstant (System.Decimal.Zero);
+ case TypeCode.Single :
+ return new FloatConstant (0.0F);
+ case TypeCode.Double :
+ return new DoubleConstant (0.0);
+ }
+
+ return null;
}
/// <summary>
- /// Attempts to apply the `Standard Implicit
- /// Conversion' rules to the expression `expr' into
- /// the `target_type'. It returns a new expression
+ /// Attempts to apply the 'Standard Implicit
+ /// Conversion' rules to the expression 'expr' into
+ /// the 'target_type'. It returns a new expression
/// that can be used in a context that expects a
- /// `target_type'.
+ /// 'target_type'.
///
- /// This is different from `ConvertImplicit' in that the
+ /// This is different from 'ConvertImplicit' in that the
/// user defined implicit conversions are excluded.
/// </summary>
static public Expression ConvertImplicitStandard (EmitContext ec, Expression expr,
Type expr_type = expr.Type;
Expression e;
+ if (expr is NullLiteral) {
+ if (target_type == TypeManager.string_type)
+ return expr;
+ e = ConvertNothingToDefaultValues (ec, expr, target_type, loc);
+ if (e != null)
+ return e;
+ }
+
if (expr_type == target_type)
return expr;
e = ImplicitNumericConversion (ec, expr, target_type, loc);
+
if (e != null)
return e;
if (e != null)
return e;
- if (target_type.IsSubclassOf (TypeManager.enum_type) && expr is IntLiteral){
- IntLiteral i = (IntLiteral) expr;
-
- if (i.Value == 0)
- return new EmptyCast (expr, target_type);
+ if (expr.Type.IsSubclassOf (TypeManager.enum_type)) {
+ expr_type = TypeManager.EnumToUnderlying (expr.Type);
+ expr = new EmptyCast (expr, expr_type);
+ if (expr_type == target_type)
+ return expr;
+ e = ImplicitNumericConversion (ec, expr, target_type, loc);
+ if (e != null)
+ return e;
}
if (ec.InUnsafe) {
}
/// <summary>
- /// Attemps to perform an implict constant conversion of the IntConstant
+ /// Attemps to perform an implict constant conversion of the any Numeric Constant
/// into a different data type using casts (See Implicit Constant
/// Expression Conversions)
/// </summary>
- static protected Expression TryImplicitIntConversion (Type target_type, IntConstant ic)
- {
- int value = ic.Value;
+ static protected Expression TryImplicitNumericConversion (Type target_type, Constant ic)
+ {
+ double value = 0;
+ if (ic is BoolConstant) {
+ bool val = (bool) ((BoolConstant)ic).Value;
+ if (val) {
+ if (target_type == TypeManager.byte_type)
+ value = Byte.MaxValue;
+ else
+ value = -1;
+ }
+ }
+ if (ic is IntConstant)
+ value = (double)((IntConstant)ic).Value;
+
+ if (ic is LongConstant)
+ value = (double) ((LongConstant)ic).Value;
+
+ if (ic is FloatConstant) {
+ value = (double) ((FloatConstant)ic).Value;
+ }
+
+ if (ic is DoubleConstant) {
+ value = ((DoubleConstant)ic).Value;
+ }
//
// FIXME: This could return constants instead of EmptyCasts
//
- if (target_type == TypeManager.sbyte_type){
+ if (target_type == TypeManager.bool_type){
+ if (value != 0)
+ return new BoolConstant (true);
+ return new BoolConstant (false);
+ } else if (target_type == TypeManager.sbyte_type){
if (value >= SByte.MinValue && value <= SByte.MaxValue)
- return new SByteConstant ((sbyte) value);
+ return new SByteConstant ((sbyte) System.Math.Round (value));
} else if (target_type == TypeManager.byte_type){
- if (Byte.MinValue >= 0 && value <= Byte.MaxValue)
- return new ByteConstant ((byte) value);
+ if (value >= Byte.MinValue && value <= Byte.MaxValue)
+ return new ByteConstant ((byte) System.Math.Round (value));
} else if (target_type == TypeManager.short_type){
if (value >= Int16.MinValue && value <= Int16.MaxValue)
- return new ShortConstant ((short) value);
+ return new ShortConstant ((short) System.Math.Round (value));
} else if (target_type == TypeManager.ushort_type){
if (value >= UInt16.MinValue && value <= UInt16.MaxValue)
- return new UShortConstant ((ushort) value);
+ return new UShortConstant ((ushort) System.Math.Round (value));
+ } else if (target_type == TypeManager.int32_type){
+ if (value >= Int32.MinValue && value <= Int32.MaxValue)
+ return new IntConstant ((int) System.Math.Round (value));
} else if (target_type == TypeManager.uint32_type){
if (value >= 0)
- return new UIntConstant ((uint) value);
+ return new UIntConstant ((uint) System.Math.Round (value));
+ } else if (target_type == TypeManager.int64_type){
+ return new LongConstant ((long) System.Math.Round (value));
} else if (target_type == TypeManager.uint64_type){
//
// we can optimize this case: a positive int32
// to do it.
//
if (value >= 0)
- return new ULongConstant ((ulong) value);
+ return new ULongConstant ((ulong)System.Math.Round ( value));
+ } else if (target_type == TypeManager.float_type){
+ return new FloatConstant ((float) value);
+ } else if (target_type == TypeManager.double_type){
+ return new DoubleConstant ((double) value);
}
if (value == 0 && ic is IntLiteral && TypeManager.IsEnumType (target_type)){
static public void Error_CannotConvertImplicit (Location loc, Type source, Type target)
{
- string msg = "Cannot convert implicitly from `"+
- TypeManager.MonoBASIC_Name (source) + "' to `" +
+ string msg = "Cannot convert implicitly from '"+
+ TypeManager.MonoBASIC_Name (source) + "' to '" +
TypeManager.MonoBASIC_Name (target) + "'";
- Report.Error (29, loc, msg);
+ throw new Exception (msg);
+
+ Report.Error (30512, loc, msg);
}
/// <summary>
- /// Attemptes to implicityly convert `target' into `type', using
+ /// Attemptes to implicityly convert 'target' into 'type', using
/// ConvertImplicit. If there is no implicit conversion, then
/// an error is signaled
/// </summary>
Expression e;
e = ConvertImplicit (ec, source, target_type, loc);
+
if (e != null)
return e;
+
if (source is DoubleLiteral && target_type == TypeManager.float_type){
Report.Error (664, loc,
"Double literal cannot be implicitly converted to " +
// ushort, int, uint, long, ulong, char
// or decimal
//
+ Expression rounded_expr = RTConversionExpression(ec, "System.Math",".Round" , expr, loc);
if (real_target_type == TypeManager.sbyte_type)
- return new ConvCast (ec, expr, target_type, ConvCast.Mode.R4_I1);
+ return new ConvCast (ec, rounded_expr, target_type, ConvCast.Mode.R4_I1);
if (real_target_type == TypeManager.byte_type)
- return new ConvCast (ec, expr, target_type, ConvCast.Mode.R4_U1);
+ return new ConvCast (ec, rounded_expr, target_type, ConvCast.Mode.R4_U1);
if (real_target_type == TypeManager.short_type)
- return new ConvCast (ec, expr, target_type, ConvCast.Mode.R4_I2);
+ return new ConvCast (ec, rounded_expr, target_type, ConvCast.Mode.R4_I2);
if (real_target_type == TypeManager.ushort_type)
- return new ConvCast (ec, expr, target_type, ConvCast.Mode.R4_U2);
+ return new ConvCast (ec, rounded_expr, target_type, ConvCast.Mode.R4_U2);
if (real_target_type == TypeManager.int32_type)
- return new ConvCast (ec, expr, target_type, ConvCast.Mode.R4_I4);
+ return new ConvCast (ec, rounded_expr, target_type, ConvCast.Mode.R4_I4);
if (real_target_type == TypeManager.uint32_type)
- return new ConvCast (ec, expr, target_type, ConvCast.Mode.R4_U4);
+ return new ConvCast (ec, rounded_expr, target_type, ConvCast.Mode.R4_U4);
if (real_target_type == TypeManager.int64_type)
- return new ConvCast (ec, expr, target_type, ConvCast.Mode.R4_I8);
+ return new ConvCast (ec, rounded_expr, target_type, ConvCast.Mode.R4_I8);
if (real_target_type == TypeManager.uint64_type)
- return new ConvCast (ec, expr, target_type, ConvCast.Mode.R4_U8);
+ return new ConvCast (ec, rounded_expr, target_type, ConvCast.Mode.R4_U8);
if (real_target_type == TypeManager.char_type)
- return new ConvCast (ec, expr, target_type, ConvCast.Mode.R4_CH);
+ return new ConvCast (ec, rounded_expr, target_type, ConvCast.Mode.R4_CH);
} else if (expr_type == TypeManager.double_type){
//
// From double to byte, byte, short,
// ushort, int, uint, long, ulong,
// char, float or decimal
//
+ Expression rounded_expr = RTConversionExpression(ec, "System.Math",".Round" , expr, loc);
if (real_target_type == TypeManager.sbyte_type)
- return new ConvCast (ec, expr, target_type, ConvCast.Mode.R8_I1);
+ return new ConvCast (ec, rounded_expr, target_type, ConvCast.Mode.R8_I1);
if (real_target_type == TypeManager.byte_type)
- return new ConvCast (ec, expr, target_type, ConvCast.Mode.R8_U1);
+ return new ConvCast (ec, rounded_expr, target_type, ConvCast.Mode.R8_U1);
if (real_target_type == TypeManager.short_type)
- return new ConvCast (ec, expr, target_type, ConvCast.Mode.R8_I2);
+ return new ConvCast (ec, rounded_expr, target_type, ConvCast.Mode.R8_I2);
if (real_target_type == TypeManager.ushort_type)
- return new ConvCast (ec, expr, target_type, ConvCast.Mode.R8_U2);
+ return new ConvCast (ec, rounded_expr, target_type, ConvCast.Mode.R8_U2);
if (real_target_type == TypeManager.int32_type)
- return new ConvCast (ec, expr, target_type, ConvCast.Mode.R8_I4);
+ return new ConvCast (ec, rounded_expr, target_type, ConvCast.Mode.R8_I4);
if (real_target_type == TypeManager.uint32_type)
- return new ConvCast (ec, expr, target_type, ConvCast.Mode.R8_U4);
+ return new ConvCast (ec, rounded_expr, target_type, ConvCast.Mode.R8_U4);
if (real_target_type == TypeManager.int64_type)
- return new ConvCast (ec, expr, target_type, ConvCast.Mode.R8_I8);
+ return new ConvCast (ec, rounded_expr, target_type, ConvCast.Mode.R8_I8);
if (real_target_type == TypeManager.uint64_type)
- return new ConvCast (ec, expr, target_type, ConvCast.Mode.R8_U8);
+ return new ConvCast (ec, rounded_expr, target_type, ConvCast.Mode.R8_U8);
if (real_target_type == TypeManager.char_type)
- return new ConvCast (ec, expr, target_type, ConvCast.Mode.R8_CH);
+ return new ConvCast (ec, rounded_expr, target_type, ConvCast.Mode.R8_CH);
if (real_target_type == TypeManager.float_type)
- return new ConvCast (ec, expr, target_type, ConvCast.Mode.R8_R4);
+ return new ConvCast (ec, rounded_expr, target_type, ConvCast.Mode.R8_R4);
}
// decimal is taken care of by the op_Explicit methods.
}
/// <summary>
- /// Performs an explicit conversion of the expression `expr' whose
- /// type is expr.Type to `target_type'.
+ /// Performs an explicit conversion of the expression 'expr' whose
+ /// type is expr.Type to 'target_type'.
/// </summary>
static public Expression ConvertExplicit (EmitContext ec, Expression expr,
- Type target_type, Location loc)
+ Type target_type, bool runtimeconv, Location loc)
{
Type expr_type = expr.Type;
Expression ne = ConvertImplicitStandard (ec, expr, target_type, loc);
if (t != null)
return t;
- t = RuntimeConversion (ec, e, target_type, loc);
+ t = NarrowingConversion (ec, e, target_type, loc);
if (t != null)
return t;
ne = ExplicitUserConversion (ec, expr, target_type, loc);
if (ne != null)
return ne;
+
+ if (!(runtimeconv)) {
+ ne = NarrowingConversion (ec, expr, target_type, loc);
+ if (ne != null)
+ return ne;
- ne = RuntimeConversion (ec, expr, target_type, loc);
- if (ne != null)
- return ne;
-
- Error_CannotConvertType (loc, expr_type, target_type);
+ Error_CannotConvertType (loc, expr_type, target_type);
+ }
return null;
}
if (ne != null)
return ne;
- ne = RuntimeConversion (ec, expr, target_type, l);
+ ne = NarrowingConversion (ec, expr, target_type, l);
if (ne != null)
return ne;
}
/// <summary>
- /// Reports that we were expecting `expr' to be of class `expected'
+ /// Reports that we were expecting 'expr' to be of class 'expected'
/// </summary>
public void Error118 (string expected)
{
kind = ExprClassName (eclass);
- Error (118, "Expression denotes a `" + kind +
- "' where a `" + expected + "' was expected");
+ Error (118, "Expression denotes a '" + kind +
+ "' where a '" + expected + "' was expected");
}
public void Error118 (ResolveFlags flags)
string kind = ExprClassName (eclass);
- Error (119, "Expression denotes a `" + kind + "' where " +
- "a `" + sb.ToString () + "' was expected");
+ Error (119, "Expression denotes a '" + kind + "' where " +
+ "a '" + sb.ToString () + "' was expected");
}
static void Error_ConstantValueCannotBeConverted (Location l, string val, Type t)
{
- Report.Error (31, l, "Constant value `" + val + "' cannot be converted to " +
+ Report.Error (31, l, "Constant value '" + val + "' cannot be converted to " +
TypeManager.MonoBASIC_Name (t));
}
/// <summary>
/// Converts the IntConstant, UIntConstant, LongConstant or
/// ULongConstant into the integral target_type. Notice
- /// that we do not return an `Expression' we do return
+ /// that we do not return an 'Expression' we do return
/// a boxed integral type.
///
/// FIXME: Since I added the new constants, we need to
}
//
- // The stack contains the pointer and the value of type `type'
+ // The stack contains the pointer and the value of type 'type'
//
public static void StoreFromPtr (ILGenerator ig, Type type)
{
}
//
- // Returns the size of type `t' if known, otherwise, 0
+ // Returns the size of type 't' if known, otherwise, 0
//
public static int GetTypeSize (Type t)
{
}
//
- // Converts `source' to an int, uint, long or ulong.
+ // Converts 'source' to an int, uint, long or ulong.
//
public Expression ExpressionToArrayArgument (EmitContext ec, Expression source, Location loc)
{
public abstract class ExpressionStatement : Expression {
/// <summary>
- /// Requests the expression to be emitted in a `statement'
+ /// Requests the expression to be emitted in a 'statement'
/// context. This means that no new value is left on the
/// stack after invoking this method (constrasted with
/// Emit that will always leave a value on the stack).
}
}
+
+ public class NumericToBoolCast : EmptyCast
+ {
+ Type src_type;
+
+ public NumericToBoolCast (Expression src, Type src_type)
+ : base (src, TypeManager.bool_type)
+
+ {
+ this.src_type = src_type;
+ }
+
+ public override Expression DoResolve (EmitContext ec)
+ {
+ return this;
+ }
+
+ public override void Emit (EmitContext ec)
+ {
+ base.Emit (ec);
+
+ if (src_type == TypeManager.byte_type ||
+ src_type == TypeManager.short_type ||
+ src_type == TypeManager.int32_type) {
+
+ ec.ig.Emit (OpCodes.Ldc_I4_0);
+ ec.ig.Emit (OpCodes.Cgt_Un);
+ return;
+ }
+
+ if (src_type == TypeManager.int64_type) {
+ ec.ig.Emit (OpCodes.Ldc_I8, (long) 0);
+ ec.ig.Emit (OpCodes.Cgt_Un);
+ return;
+ }
+
+ if (src_type == TypeManager.float_type) {
+ ec.ig.Emit (OpCodes.Ldc_R4, (float) 0);
+ ec.ig.Emit (OpCodes.Ceq);
+ ec.ig.Emit (OpCodes.Ldc_I4_0);
+ ec.ig.Emit (OpCodes.Ceq);
+ return;
+ }
+
+ if (src_type == TypeManager.double_type) {
+ ec.ig.Emit (OpCodes.Ldc_R8, (double) 0);
+ ec.ig.Emit (OpCodes.Ceq);
+ ec.ig.Emit (OpCodes.Ldc_I4_0);
+ ec.ig.Emit (OpCodes.Ceq);
+ return;
+ }
+ }
+ }
+
+ public class BoolToNumericCast : EmptyCast
+ {
+ Expression src;
+ Type target_type;
+ OpCode conv;
+
+ public BoolToNumericCast (Expression src, Type target_type)
+ : base (src, target_type)
+
+ {
+ this.target_type = target_type;
+ }
+
+ public override Expression DoResolve (EmitContext ec)
+ {
+ return this;
+ }
+
+ public override void Emit (EmitContext ec)
+ {
+ base.Emit (ec);
+
+ if (target_type == TypeManager.byte_type) {
+ conv = OpCodes.Conv_U1;
+ } else if (target_type == TypeManager.short_type) {
+ conv = OpCodes.Conv_I2;
+ } else if (target_type == TypeManager.int32_type) {
+ conv = OpCodes.Conv_I4;
+ } else if (target_type == TypeManager.int64_type) {
+ conv = OpCodes.Conv_I8;
+ } else if (target_type == TypeManager.float_type) {
+ conv = OpCodes.Conv_R4;
+ } else if (target_type == TypeManager.double_type) {
+ conv = OpCodes.Conv_R8;
+ }
+
+ ec.ig.Emit (OpCodes.Ldc_I4_0);
+ ec.ig.Emit (OpCodes.Cgt_Un);
+ ec.ig.Emit (OpCodes.Neg);
+ ec.ig.Emit (conv);
+ return;
+ }
+ }
+
/// <summary>
/// This kind of cast is used to encapsulate a child and cast it
/// to the class requested
/// creating a namespace map from the assemblies, as that requires
/// the GetExportedTypes function to be called and a hashtable to
/// be constructed which reduces startup time. If later we find
- /// that this is slower, we should create a `NamespaceExpr' expression
+ /// that this is slower, we should create a 'NamespaceExpr' expression
/// that fully participates in the resolution process.
///
- /// For example `System.Console.WriteLine' is decomposed into
+ /// For example 'System.Console.WriteLine' is decomposed into
/// MemberAccess (MemberAccess (SimpleName ("System"), "Console"), "WriteLine")
///
/// The first SimpleName wont produce a match on its own, so it will
///
/// System.Console will produce a TypeExpr match.
///
- /// The downside of this is that we might be hitting `LookupType' too many
+ /// The downside of this is that we might be hitting 'LookupType' too many
/// times with this scheme.
/// </remarks>
public class SimpleName : Expression, ITypeExpression {
Report.Error (
236, l,
"A field initializer cannot reference the non-static field, " +
- "method or property `"+name+"'");
+ "method or property '"+name+"'");
else
Report.Error (
120, l,
"An object reference is required " +
- "for the non-static field `"+name+"'");
+ "for the non-static field '"+name+"'");
}
//
/// Local Variables and Parameters are handled at
/// parse time, so they never occur as SimpleNames.
///
- /// The `allow_static' flag is used by MemberAccess only
+ /// The 'allow_static' flag is used by MemberAccess only
/// and it is used to inform us that it is ok for us to
/// avoid the static check, because MemberAccess might end
/// up resolving the Name as a Type name and the access as
Expression SimpleNameResolve (EmitContext ec, Expression right_side, bool allow_static)
{
Expression e = null;
-
+
//
// Stage 1: Performed by the parser (binding to locals or parameters).
//
// #52067 - Start - Trying to solve
if (e == null) {
+
+ ArrayList lookups = new ArrayList();
+ ArrayList typelookups = new ArrayList();
+
+ int split = Name.LastIndexOf('.');
+ if (split != -1) {
+ String nameSpacePart = Name.Substring(0, split);
+ String memberNamePart = Name.Substring(split + 1);
+ foreach(Type type in TypeManager.GetPertinentStandardModules(nameSpacePart)) {
+ e = MemberLookup(ec, type, memberNamePart, loc);
+ if (e != null) {
+ lookups.Add(e);
+ typelookups.Add(type);
+ }
+ }
+ }
+
string[] NamespacesInScope = RootContext.SourceBeingCompiled.GetNamespacesInScope(ec.DeclSpace.Namespace.Name);
-
foreach(Type type in TypeManager.GetPertinentStandardModules(NamespacesInScope)) {
e = MemberLookup(ec, type, Name, loc);
- if (e != null) // FIXME! Must Output Ambiguity Error Messages
- break;
+ if (e != null) {
+ lookups.Add(e);
+ typelookups.Add(type);
+ }
+ }
+ if (lookups.Count == 1) {
+ e = (Expression)lookups[0];
+ } else {
+ if (lookups.Count > 1) {
+ StringBuilder sb = new StringBuilder();
+ foreach(Type type in typelookups)
+ sb.Append("'" + type.FullName + "'");
+ Error (-1, "The name '" + Name + "' can be resolved to a member of more than one standard module: " + sb.ToString() + ". Please fully qualify it.");
+ return null;
+ }
}
}
if (!me.IsStatic &&
TypeManager.IsNestedChildOf (me.InstanceExpression.Type, me.DeclaringType)) {
- Error (38, "Cannot access nonstatic member `" + me.Name + "' of " +
- "outer type `" + me.DeclaringType + "' via nested type `" +
+ Error (38, "Cannot access nonstatic member '" + me.Name + "' of " +
+ "outer type '" + me.DeclaringType + "' via nested type '" +
me.InstanceExpression.Type + "'");
return null;
}
else
e = e.DoResolve (ec);
- return e;
+ return e;
}
if (ec.IsStatic || ec.IsFieldInitializer){
// find the name as a namespace
//
- Error (103, "The name `" + Name +
- "' does not exist in the class `" +
+ Error (30451, "The name '" + Name +
+ "' does not exist in the class '" +
ec.DeclSpace.Name + "'");
}
}
//
- // `A method group may have associated an instance expression'
+ // 'A method group may have associated an instance expression'
//
public Expression InstanceExpression {
get {
public void ReportUsageError ()
{
- Report.Error (654, loc, "Method `" + Methods [0].DeclaringType + "." +
+ Report.Error (654, loc, "Method '" + Methods [0].DeclaringType + "." +
Methods [0].Name + "()' is referenced without parentheses");
}
/// <summary>
/// Expression that evaluates to a Property. The Assign class
- /// might set the `Value' expression if we are in an assignment.
+ /// might set the 'Value' expression if we are in an assignment.
///
/// This is not an LValue because we need to re-write the expression, we
/// can not take data from the stack and store it.
{
PropertyInfo = pi;
eclass = ExprClass.PropertyAccess;
- PropertyArgs = new ArrayList();
+ PropertyArgs = null;
is_static = false;
loc = l;
{
if (!PropertyInfo.CanWrite){
Report.Error (200, loc,
- "The property `" + PropertyInfo.Name +
+ "The property '" + PropertyInfo.Name +
"' can not be assigned to, as it has not set accessor");
return false;
}
override public Expression DoResolve (EmitContext ec)
{
if (getter == null){
- Report.Error (154, loc,
- "The property `" + PropertyInfo.Name +
+ Report.Error (30524, loc,
+ "The property '" + PropertyInfo.Name +
"' can not be used in " +
"this context because it lacks a get accessor");
return null;
override public Expression DoResolveLValue (EmitContext ec, Expression right_side)
{
if (setter == null){
- Report.Error (154, loc,
- "The property `" + PropertyInfo.Name +
+ Report.Error (30526, loc,
+ "The property '" + PropertyInfo.Name +
"' can not be used in " +
"this context because it lacks a set accessor");
return null;
return;
}
}
+ if (PropertyArgs == null)
+ PropertyArgs = new ArrayList ();
Invocation.EmitCall (ec, IsBase, IsStatic, instance_expr, getter, null, PropertyArgs, loc);
}
}
}
+ Expression field_expr = null;
+
public override Expression DoResolve (EmitContext ec)
{
if (instance_expr != null) {
return null;
}
+ if (this.DeclaringType == ec.ContainerType) {
+ MemberInfo mi = GetFieldFromEvent (this);
+ if (mi == null)
+ return null;
+ field_expr = ExprClassFromMemberInfo (ec, mi, loc);
+ ((FieldExpr) field_expr).InstanceExpression = instance_expr;
+ field_expr = field_expr.DoResolve (ec);
+ if (field_expr == null)
+ return null;
+ }
+
return this;
}
public override void Emit (EmitContext ec)
{
- Report.Error (70, loc, "The event `" + Name + "' can only appear on the left hand side of += or -= (except on the defining type)");
+ if (field_expr != null)
+ field_expr.Emit (ec);
}
public void EmitAddOrRemove (EmitContext ec, Expression source)
projects / mono.git / blobdiff