ArrayList args;
MethodInfo mi;
- StaticCallExpr (MethodInfo m, ArrayList a, Location l)
+ public StaticCallExpr (MethodInfo m, ArrayList a, Location l)
{
mi = m;
args = a;
MethodBase method;
args = new ArrayList (1);
- args.Add (new Argument (e, Argument.AType.Expression));
+ Argument a = new Argument (e, Argument.AType.Expression);
+
+ // We need to resolve the arguments before sending them in !
+ if (!a.Resolve (ec, loc))
+ return null;
+
+ args.Add (a);
method = Invocation.OverloadResolve (ec, (MethodGroupExpr) mg, args, loc);
if (method == null)
return oper.ToString ();
}
- static string [] oper_names;
+ public static readonly string [] oper_names;
static Unary ()
{
static Expression TryReduceNegative (Constant expr)
{
Expression e = null;
-
+
if (expr is IntConstant)
e = new IntConstant (-((IntConstant) expr).Value);
else if (expr is UIntConstant){
if (value < 2147483649)
return new IntConstant (-(int)value);
else
- e = new LongConstant (value);
+ e = new LongConstant (-value);
}
else if (expr is LongConstant)
e = new LongConstant (-((LongConstant) expr).Value);
(expr_type == TypeManager.int64_type) ||
(expr_type == TypeManager.uint64_type) ||
(expr_type.IsSubclassOf (TypeManager.enum_type)))){
+
result = null;
- Error23 (expr_type);
- return false;
+ if (Convert.ImplicitConversionExists (ec, e, TypeManager.int32_type)){
+ result = new Cast (new TypeExpr (TypeManager.int32_type, loc), e, loc);
+ result = result.Resolve (ec);
+ } else if (Convert.ImplicitConversionExists (ec, e, TypeManager.uint32_type)){
+ result = new Cast (new TypeExpr (TypeManager.uint32_type, loc), e, loc);
+ result = result.Resolve (ec);
+ } else if (Convert.ImplicitConversionExists (ec, e, TypeManager.int64_type)){
+ result = new Cast (new TypeExpr (TypeManager.int64_type, loc), e, loc);
+ result = result.Resolve (ec);
+ } else if (Convert.ImplicitConversionExists (ec, e, TypeManager.uint64_type)){
+ result = new Cast (new TypeExpr (TypeManager.uint64_type, loc), e, loc);
+ result = result.Resolve (ec);
+ }
+
+ if (result == null || !(result is Constant)){
+ result = null;
+ Error23 (expr_type);
+ return false;
+ }
+
+ expr_type = result.Type;
+ e = (Constant) result;
}
if (e is EnumConstant){
switch (Oper){
case Operator.LogicalNot:
if (expr_type != TypeManager.bool_type) {
- Error23 (Expr.Type);
- return null;
+ Expr = ResolveBoolean (ec, Expr, loc);
+ if (Expr == null){
+ Error23 (expr_type);
+ return null;
+ }
}
type = TypeManager.bool_type;
(expr_type.IsSubclassOf (TypeManager.enum_type)))){
Expression e;
- e = ConvertImplicit (ec, Expr, TypeManager.int32_type, loc);
+ e = Convert.ImplicitConversion (ec, Expr, TypeManager.int32_type, loc);
if (e != null){
type = TypeManager.int32_type;
return this;
}
- e = ConvertImplicit (ec, Expr, TypeManager.uint32_type, loc);
+ e = Convert.ImplicitConversion (ec, Expr, TypeManager.uint32_type, loc);
if (e != null){
type = TypeManager.uint32_type;
return this;
}
- e = ConvertImplicit (ec, Expr, TypeManager.int64_type, loc);
+ e = Convert.ImplicitConversion (ec, Expr, TypeManager.int64_type, loc);
if (e != null){
type = TypeManager.int64_type;
return this;
}
- e = ConvertImplicit (ec, Expr, TypeManager.uint64_type, loc);
+ e = Convert.ImplicitConversion (ec, Expr, TypeManager.uint64_type, loc);
if (e != null){
type = TypeManager.uint64_type;
return this;
if (!TypeManager.VerifyUnManaged (Expr.Type, loc)){
return null;
}
-
- string ptr_type_name = Expr.Type.FullName + "*";
- type = TypeManager.LookupType (ptr_type_name);
-
+
+ type = TypeManager.GetPointerType (Expr.Type);
return this;
case Operator.Indirection:
}
if (!expr_type.IsPointer){
- Error (
- 193,
- "The * or -> operator can only be applied to pointers");
+ Error (193, "The * or -> operator can only be applied to pointers");
return null;
}
//
//
// The following is inneficient, because we call
- // ConvertImplicit too many times.
+ // ImplicitConversion too many times.
//
// It is also not clear if we should convert to Float
// or Double initially.
// bt wrote as a decimal interger literal
//
type = TypeManager.int64_type;
- Expr = ConvertImplicit (ec, Expr, type, loc);
+ Expr = Convert.ImplicitConversion (ec, Expr, type, loc);
return this;
}
return this;
}
- expr = ConvertImplicit (ec, Expr, TypeManager.int32_type, loc);
+ expr = Convert.ImplicitConversion (ec, Expr, TypeManager.int32_type, loc);
if (expr != null){
Expr = expr;
type = expr.Type;
return this;
}
- expr = ConvertImplicit (ec, Expr, TypeManager.int64_type, loc);
+ expr = Convert.ImplicitConversion (ec, Expr, TypeManager.int64_type, loc);
if (expr != null){
Expr = expr;
type = expr.Type;
return this;
}
- expr = ConvertImplicit (ec, Expr, TypeManager.double_type, loc);
+ expr = Convert.ImplicitConversion (ec, Expr, TypeManager.double_type, loc);
if (expr != null){
Expr = expr;
type = expr.Type;
public void EmitAssign (EmitContext ec, Expression source)
{
if (temporary != null){
- if (have_temporary){
+ if (have_temporary)
temporary.Emit (ec);
- return;
+ else {
+ expr.Emit (ec);
+ ec.ig.Emit (OpCodes.Dup);
+ temporary.Store (ec);
+ have_temporary = true;
}
- expr.Emit (ec);
- ec.ig.Emit (OpCodes.Dup);
- temporary.Store (ec);
- have_temporary = true;
- } else
+ } else
expr.Emit (ec);
source.Emit (ec);
{
temporary = new LocalTemporary (ec, type);
}
+
+ public override string ToString ()
+ {
+ return "*(" + expr + ")";
+ }
}
/// <summary>
return null;
} else {
- expr.Error118 ("variable, indexer or property access");
+ expr.Error_UnexpectedKind ("variable, indexer or property access");
return null;
}
//
void LoadOneAndEmitOp (EmitContext ec, Type t)
{
+ //
+ // Measure if getting the typecode and using that is more/less efficient
+ // that comparing types. t.GetTypeCode() is an internal call.
+ //
ILGenerator ig = ec.ig;
-
+
if (t == TypeManager.uint64_type || t == TypeManager.int64_type)
LongConstant.EmitLong (ig, 1);
else if (t == TypeManager.double_type)
else
ig.Emit (OpCodes.Add);
}
+
+ if (t == TypeManager.sbyte_type){
+ if (ec.CheckState)
+ ig.Emit (OpCodes.Conv_Ovf_I1);
+ else
+ ig.Emit (OpCodes.Conv_I1);
+ } else if (t == TypeManager.byte_type){
+ if (ec.CheckState)
+ ig.Emit (OpCodes.Conv_Ovf_U1);
+ else
+ ig.Emit (OpCodes.Conv_U1);
+ } else if (t == TypeManager.short_type){
+ if (ec.CheckState)
+ ig.Emit (OpCodes.Conv_Ovf_I2);
+ else
+ ig.Emit (OpCodes.Conv_I2);
+ } else if (t == TypeManager.ushort_type || t == TypeManager.char_type){
+ if (ec.CheckState)
+ ig.Emit (OpCodes.Conv_Ovf_U2);
+ else
+ ig.Emit (OpCodes.Conv_U2);
+ }
+
}
+ static EmptyExpression empty_expr;
+
void EmitCode (EmitContext ec, bool is_expr)
{
ILGenerator ig = ec.ig;
ia.CacheTemporaries (ec);
- if (temp_storage == null)
+ if (temp_storage == null){
+ //
+ // Temporary improvement: if we are dealing with something that does
+ // not require complicated instance setup, avoid using a temporary
+ //
+ // For now: only localvariables when not remapped
+ //
+
+ if (method == null &&
+ (expr is LocalVariableReference && ec.RemapToProxy == false) ||
+ (expr is FieldExpr && ((FieldExpr) expr).FieldInfo.IsStatic)){
+ if (empty_expr == null)
+ empty_expr = new EmptyExpression ();
+
+ switch (mode){
+ case Mode.PreIncrement:
+ case Mode.PreDecrement:
+ expr.Emit (ec);
+
+ LoadOneAndEmitOp (ec, expr_type);
+ if (is_expr)
+ ig.Emit (OpCodes.Dup);
+ ia.EmitAssign (ec, empty_expr);
+ break;
+
+ case Mode.PostIncrement:
+ case Mode.PostDecrement:
+ expr.Emit (ec);
+ if (is_expr)
+ ig.Emit (OpCodes.Dup);
+
+ LoadOneAndEmitOp (ec, expr_type);
+ ia.EmitAssign (ec, empty_expr);
+ break;
+ }
+ return;
+ }
temp_storage = new LocalTemporary (ec, expr_type);
+ }
switch (mode){
case Mode.PreIncrement:
return;
case Action.LeaveOnStack:
// the `e != null' rule.
+ ig.Emit (OpCodes.Ldnull);
+ ig.Emit (OpCodes.Ceq);
+ ig.Emit (OpCodes.Ldc_I4_0);
+ ig.Emit (OpCodes.Ceq);
return;
case Action.Probe:
ig.Emit (OpCodes.Isinst, probe_type);
// First case, if at compile time, there is an implicit conversion
// then e != null (objects) or true (value types)
//
- e = ConvertImplicitStandard (ec, expr, probe_type, loc);
+ e = Convert.ImplicitConversionStandard (ec, expr, probe_type, loc);
if (e != null){
expr = e;
if (etype.IsValueType)
action = Action.LeaveOnStack;
warning_always_matches = true;
- } else if (ExplicitReferenceConversionExists (etype, probe_type)){
+ } else if (Convert.ExplicitReferenceConversionExists (etype, probe_type)){
//
// Second case: explicit reference convresion
//
if (RootContext.WarningLevel >= 1){
if (warning_always_matches)
- Warning (
- 183,
- "The expression is always of type `" +
- TypeManager.CSharpName (probe_type) + "'");
+ Warning (183, "The expression is always of type `" +
+ TypeManager.CSharpName (probe_type) + "'");
else if (warning_never_matches){
if (!(probe_type.IsInterface || expr.Type.IsInterface))
- Warning (
- 184,
- "The expression is never of type `" +
- TypeManager.CSharpName (probe_type) + "'");
+ Warning (184,
+ "The expression is never of type `" +
+ TypeManager.CSharpName (probe_type) + "'");
}
}
}
- e = ConvertImplicit (ec, expr, probe_type, loc);
+ e = Convert.ImplicitConversion (ec, expr, probe_type, loc);
if (e != null){
expr = e;
do_isinst = false;
return this;
}
- if (ExplicitReferenceConversionExists (etype, probe_type)){
+ if (Convert.ExplicitReferenceConversionExists (etype, probe_type)){
do_isinst = true;
return this;
}
}
}
+ bool CheckRange (EmitContext ec, long value, Type type, long min, long max)
+ {
+ if (!ec.ConstantCheckState)
+ return true;
+
+ if ((value < min) || (value > max)) {
+ Error (221, "Constant value `" + value + "' cannot be converted " +
+ "to a `" + TypeManager.CSharpName (type) + "' (use `unchecked' " +
+ "syntax to override)");
+ return false;
+ }
+
+ return true;
+ }
+
+ bool CheckRange (EmitContext ec, ulong value, Type type, ulong max)
+ {
+ if (!ec.ConstantCheckState)
+ return true;
+
+ if (value > max) {
+ Error (221, "Constant value `" + value + "' cannot be converted " +
+ "to a `" + TypeManager.CSharpName (type) + "' (use `unchecked' " +
+ "syntax to override)");
+ return false;
+ }
+
+ return true;
+ }
+
+ bool CheckUnsigned (EmitContext ec, long value, Type type)
+ {
+ if (!ec.ConstantCheckState)
+ return true;
+
+ if (value < 0) {
+ Error (221, "Constant value `" + value + "' cannot be converted " +
+ "to a `" + TypeManager.CSharpName (type) + "' (use `unchecked' " +
+ "syntax to override)");
+ return false;
+ }
+
+ return true;
+ }
+
/// <summary>
/// Attempts to do a compile-time folding of a constant cast.
/// </summary>
Expression TryReduce (EmitContext ec, Type target_type)
{
- if (expr is ByteConstant){
- byte v = ((ByteConstant) expr).Value;
+ Expression real_expr = expr;
+ if (real_expr is EnumConstant)
+ real_expr = ((EnumConstant) real_expr).Child;
+
+ if (real_expr is ByteConstant){
+ byte v = ((ByteConstant) real_expr).Value;
- if (target_type == TypeManager.sbyte_type)
+ if (target_type == TypeManager.sbyte_type) {
+ if (!CheckRange (ec, v, target_type, SByte.MinValue, SByte.MaxValue))
+ return null;
return new SByteConstant ((sbyte) v);
+ }
if (target_type == TypeManager.short_type)
return new ShortConstant ((short) v);
if (target_type == TypeManager.ushort_type)
if (target_type == TypeManager.decimal_type)
return new DecimalConstant ((decimal) v);
}
- if (expr is SByteConstant){
- sbyte v = ((SByteConstant) expr).Value;
+ if (real_expr is SByteConstant){
+ sbyte v = ((SByteConstant) real_expr).Value;
- if (target_type == TypeManager.byte_type)
+ if (target_type == TypeManager.byte_type) {
+ if (!CheckUnsigned (ec, v, target_type))
+ return null;
return new ByteConstant ((byte) v);
+ }
if (target_type == TypeManager.short_type)
return new ShortConstant ((short) v);
- if (target_type == TypeManager.ushort_type)
+ if (target_type == TypeManager.ushort_type) {
+ if (!CheckUnsigned (ec, v, target_type))
+ return null;
return new UShortConstant ((ushort) v);
- if (target_type == TypeManager.int32_type)
+ } if (target_type == TypeManager.int32_type)
return new IntConstant ((int) v);
- if (target_type == TypeManager.uint32_type)
+ if (target_type == TypeManager.uint32_type) {
+ if (!CheckUnsigned (ec, v, target_type))
+ return null;
return new UIntConstant ((uint) v);
- if (target_type == TypeManager.int64_type)
+ } if (target_type == TypeManager.int64_type)
return new LongConstant ((long) v);
- if (target_type == TypeManager.uint64_type)
+ if (target_type == TypeManager.uint64_type) {
+ if (!CheckUnsigned (ec, v, target_type))
+ return null;
return new ULongConstant ((ulong) v);
+ }
if (target_type == TypeManager.float_type)
return new FloatConstant ((float) v);
if (target_type == TypeManager.double_type)
return new DoubleConstant ((double) v);
- if (target_type == TypeManager.char_type)
+ if (target_type == TypeManager.char_type) {
+ if (!CheckUnsigned (ec, v, target_type))
+ return null;
return new CharConstant ((char) v);
+ }
if (target_type == TypeManager.decimal_type)
return new DecimalConstant ((decimal) v);
}
- if (expr is ShortConstant){
- short v = ((ShortConstant) expr).Value;
+ if (real_expr is ShortConstant){
+ short v = ((ShortConstant) real_expr).Value;
- if (target_type == TypeManager.byte_type)
+ if (target_type == TypeManager.byte_type) {
+ if (!CheckRange (ec, v, target_type, Byte.MinValue, Byte.MaxValue))
+ return null;
return new ByteConstant ((byte) v);
- if (target_type == TypeManager.sbyte_type)
+ }
+ if (target_type == TypeManager.sbyte_type) {
+ if (!CheckRange (ec, v, target_type, SByte.MinValue, SByte.MaxValue))
+ return null;
return new SByteConstant ((sbyte) v);
- if (target_type == TypeManager.ushort_type)
+ }
+ if (target_type == TypeManager.ushort_type) {
+ if (!CheckUnsigned (ec, v, target_type))
+ return null;
return new UShortConstant ((ushort) v);
+ }
if (target_type == TypeManager.int32_type)
return new IntConstant ((int) v);
- if (target_type == TypeManager.uint32_type)
+ if (target_type == TypeManager.uint32_type) {
+ if (!CheckUnsigned (ec, v, target_type))
+ return null;
return new UIntConstant ((uint) v);
+ }
if (target_type == TypeManager.int64_type)
return new LongConstant ((long) v);
- if (target_type == TypeManager.uint64_type)
+ if (target_type == TypeManager.uint64_type) {
+ if (!CheckUnsigned (ec, v, target_type))
+ return null;
return new ULongConstant ((ulong) v);
+ }
if (target_type == TypeManager.float_type)
return new FloatConstant ((float) v);
if (target_type == TypeManager.double_type)
return new DoubleConstant ((double) v);
- if (target_type == TypeManager.char_type)
+ if (target_type == TypeManager.char_type) {
+ if (!CheckRange (ec, v, target_type, Char.MinValue, Char.MaxValue))
+ return null;
return new CharConstant ((char) v);
+ }
if (target_type == TypeManager.decimal_type)
return new DecimalConstant ((decimal) v);
}
- if (expr is UShortConstant){
- ushort v = ((UShortConstant) expr).Value;
+ if (real_expr is UShortConstant){
+ ushort v = ((UShortConstant) real_expr).Value;
- if (target_type == TypeManager.byte_type)
+ if (target_type == TypeManager.byte_type) {
+ if (!CheckRange (ec, v, target_type, Byte.MinValue, Byte.MaxValue))
+ return null;
return new ByteConstant ((byte) v);
- if (target_type == TypeManager.sbyte_type)
+ }
+ if (target_type == TypeManager.sbyte_type) {
+ if (!CheckRange (ec, v, target_type, SByte.MinValue, SByte.MaxValue))
+ return null;
return new SByteConstant ((sbyte) v);
- if (target_type == TypeManager.short_type)
+ }
+ if (target_type == TypeManager.short_type) {
+ if (!CheckRange (ec, v, target_type, Int16.MinValue, Int16.MaxValue))
+ return null;
return new ShortConstant ((short) v);
+ }
if (target_type == TypeManager.int32_type)
return new IntConstant ((int) v);
if (target_type == TypeManager.uint32_type)
return new FloatConstant ((float) v);
if (target_type == TypeManager.double_type)
return new DoubleConstant ((double) v);
- if (target_type == TypeManager.char_type)
+ if (target_type == TypeManager.char_type) {
+ if (!CheckRange (ec, v, target_type, Char.MinValue, Char.MaxValue))
+ return null;
return new CharConstant ((char) v);
+ }
if (target_type == TypeManager.decimal_type)
return new DecimalConstant ((decimal) v);
}
- if (expr is IntConstant){
- int v = ((IntConstant) expr).Value;
+ if (real_expr is IntConstant){
+ int v = ((IntConstant) real_expr).Value;
- if (target_type == TypeManager.byte_type)
+ if (target_type == TypeManager.byte_type) {
+ if (!CheckRange (ec, v, target_type, Byte.MinValue, Byte.MaxValue))
+ return null;
return new ByteConstant ((byte) v);
- if (target_type == TypeManager.sbyte_type)
+ }
+ if (target_type == TypeManager.sbyte_type) {
+ if (!CheckRange (ec, v, target_type, SByte.MinValue, SByte.MaxValue))
+ return null;
return new SByteConstant ((sbyte) v);
- if (target_type == TypeManager.short_type)
+ }
+ if (target_type == TypeManager.short_type) {
+ if (!CheckRange (ec, v, target_type, Int16.MinValue, Int16.MaxValue))
+ return null;
return new ShortConstant ((short) v);
- if (target_type == TypeManager.ushort_type)
+ }
+ if (target_type == TypeManager.ushort_type) {
+ if (!CheckRange (ec, v, target_type, UInt16.MinValue, UInt16.MaxValue))
+ return null;
return new UShortConstant ((ushort) v);
- if (target_type == TypeManager.uint32_type)
+ }
+ if (target_type == TypeManager.uint32_type) {
+ if (!CheckRange (ec, v, target_type, Int32.MinValue, Int32.MaxValue))
+ return null;
return new UIntConstant ((uint) v);
+ }
if (target_type == TypeManager.int64_type)
return new LongConstant ((long) v);
- if (target_type == TypeManager.uint64_type)
+ if (target_type == TypeManager.uint64_type) {
+ if (!CheckUnsigned (ec, v, target_type))
+ return null;
return new ULongConstant ((ulong) v);
+ }
if (target_type == TypeManager.float_type)
return new FloatConstant ((float) v);
if (target_type == TypeManager.double_type)
return new DoubleConstant ((double) v);
- if (target_type == TypeManager.char_type)
+ if (target_type == TypeManager.char_type) {
+ if (!CheckRange (ec, v, target_type, Char.MinValue, Char.MaxValue))
+ return null;
return new CharConstant ((char) v);
+ }
if (target_type == TypeManager.decimal_type)
return new DecimalConstant ((decimal) v);
}
- if (expr is UIntConstant){
- uint v = ((UIntConstant) expr).Value;
+ if (real_expr is UIntConstant){
+ uint v = ((UIntConstant) real_expr).Value;
- if (target_type == TypeManager.byte_type)
+ if (target_type == TypeManager.byte_type) {
+ if (!CheckRange (ec, v, target_type, Char.MinValue, Char.MaxValue))
+ return null;
return new ByteConstant ((byte) v);
- if (target_type == TypeManager.sbyte_type)
+ }
+ if (target_type == TypeManager.sbyte_type) {
+ if (!CheckRange (ec, v, target_type, SByte.MinValue, SByte.MaxValue))
+ return null;
return new SByteConstant ((sbyte) v);
- if (target_type == TypeManager.short_type)
+ }
+ if (target_type == TypeManager.short_type) {
+ if (!CheckRange (ec, v, target_type, Int16.MinValue, Int16.MaxValue))
+ return null;
return new ShortConstant ((short) v);
- if (target_type == TypeManager.ushort_type)
+ }
+ if (target_type == TypeManager.ushort_type) {
+ if (!CheckRange (ec, v, target_type, UInt16.MinValue, UInt16.MaxValue))
+ return null;
return new UShortConstant ((ushort) v);
- if (target_type == TypeManager.int32_type)
+ }
+ if (target_type == TypeManager.int32_type) {
+ if (!CheckRange (ec, v, target_type, Int32.MinValue, Int32.MaxValue))
+ return null;
return new IntConstant ((int) v);
+ }
if (target_type == TypeManager.int64_type)
return new LongConstant ((long) v);
if (target_type == TypeManager.uint64_type)
return new FloatConstant ((float) v);
if (target_type == TypeManager.double_type)
return new DoubleConstant ((double) v);
- if (target_type == TypeManager.char_type)
+ if (target_type == TypeManager.char_type) {
+ if (!CheckRange (ec, v, target_type, Char.MinValue, Char.MaxValue))
+ return null;
return new CharConstant ((char) v);
+ }
if (target_type == TypeManager.decimal_type)
return new DecimalConstant ((decimal) v);
}
- if (expr is LongConstant){
- long v = ((LongConstant) expr).Value;
+ if (real_expr is LongConstant){
+ long v = ((LongConstant) real_expr).Value;
- if (target_type == TypeManager.byte_type)
+ if (target_type == TypeManager.byte_type) {
+ if (!CheckRange (ec, v, target_type, Byte.MinValue, Byte.MaxValue))
+ return null;
return new ByteConstant ((byte) v);
- if (target_type == TypeManager.sbyte_type)
+ }
+ if (target_type == TypeManager.sbyte_type) {
+ if (!CheckRange (ec, v, target_type, SByte.MinValue, SByte.MaxValue))
+ return null;
return new SByteConstant ((sbyte) v);
- if (target_type == TypeManager.short_type)
+ }
+ if (target_type == TypeManager.short_type) {
+ if (!CheckRange (ec, v, target_type, Int16.MinValue, Int16.MaxValue))
+ return null;
return new ShortConstant ((short) v);
- if (target_type == TypeManager.ushort_type)
+ }
+ if (target_type == TypeManager.ushort_type) {
+ if (!CheckRange (ec, v, target_type, UInt16.MinValue, UInt16.MaxValue))
+ return null;
return new UShortConstant ((ushort) v);
- if (target_type == TypeManager.int32_type)
+ }
+ if (target_type == TypeManager.int32_type) {
+ if (!CheckRange (ec, v, target_type, Int32.MinValue, Int32.MaxValue))
+ return null;
return new IntConstant ((int) v);
- if (target_type == TypeManager.uint32_type)
+ }
+ if (target_type == TypeManager.uint32_type) {
+ if (!CheckRange (ec, v, target_type, UInt32.MinValue, UInt32.MaxValue))
+ return null;
return new UIntConstant ((uint) v);
- if (target_type == TypeManager.uint64_type)
+ }
+ if (target_type == TypeManager.uint64_type) {
+ if (!CheckUnsigned (ec, v, target_type))
+ return null;
return new ULongConstant ((ulong) v);
+ }
if (target_type == TypeManager.float_type)
return new FloatConstant ((float) v);
if (target_type == TypeManager.double_type)
return new DoubleConstant ((double) v);
- if (target_type == TypeManager.char_type)
+ if (target_type == TypeManager.char_type) {
+ if (!CheckRange (ec, v, target_type, Char.MinValue, Char.MaxValue))
+ return null;
return new CharConstant ((char) v);
+ }
if (target_type == TypeManager.decimal_type)
return new DecimalConstant ((decimal) v);
}
- if (expr is ULongConstant){
- ulong v = ((ULongConstant) expr).Value;
+ if (real_expr is ULongConstant){
+ ulong v = ((ULongConstant) real_expr).Value;
- if (target_type == TypeManager.byte_type)
+ if (target_type == TypeManager.byte_type) {
+ if (!CheckRange (ec, v, target_type, Byte.MaxValue))
+ return null;
return new ByteConstant ((byte) v);
- if (target_type == TypeManager.sbyte_type)
+ }
+ if (target_type == TypeManager.sbyte_type) {
+ if (!CheckRange (ec, v, target_type, (ulong) SByte.MaxValue))
+ return null;
return new SByteConstant ((sbyte) v);
- if (target_type == TypeManager.short_type)
+ }
+ if (target_type == TypeManager.short_type) {
+ if (!CheckRange (ec, v, target_type, (ulong) Int16.MaxValue))
+ return null;
return new ShortConstant ((short) v);
- if (target_type == TypeManager.ushort_type)
+ }
+ if (target_type == TypeManager.ushort_type) {
+ if (!CheckRange (ec, v, target_type, UInt16.MaxValue))
+ return null;
return new UShortConstant ((ushort) v);
- if (target_type == TypeManager.int32_type)
+ }
+ if (target_type == TypeManager.int32_type) {
+ if (!CheckRange (ec, v, target_type, Int32.MaxValue))
+ return null;
return new IntConstant ((int) v);
- if (target_type == TypeManager.uint32_type)
+ }
+ if (target_type == TypeManager.uint32_type) {
+ if (!CheckRange (ec, v, target_type, UInt32.MaxValue))
+ return null;
return new UIntConstant ((uint) v);
- if (target_type == TypeManager.int64_type)
+ }
+ if (target_type == TypeManager.int64_type) {
+ if (!CheckRange (ec, v, target_type, (ulong) Int64.MaxValue))
+ return null;
return new LongConstant ((long) v);
+ }
if (target_type == TypeManager.float_type)
return new FloatConstant ((float) v);
if (target_type == TypeManager.double_type)
return new DoubleConstant ((double) v);
- if (target_type == TypeManager.char_type)
+ if (target_type == TypeManager.char_type) {
+ if (!CheckRange (ec, v, target_type, Char.MaxValue))
+ return null;
return new CharConstant ((char) v);
+ }
if (target_type == TypeManager.decimal_type)
return new DecimalConstant ((decimal) v);
}
- if (expr is FloatConstant){
- float v = ((FloatConstant) expr).Value;
+ if (real_expr is FloatConstant){
+ float v = ((FloatConstant) real_expr).Value;
if (target_type == TypeManager.byte_type)
return new ByteConstant ((byte) v);
if (target_type == TypeManager.decimal_type)
return new DecimalConstant ((decimal) v);
}
- if (expr is DoubleConstant){
- double v = ((DoubleConstant) expr).Value;
+ if (real_expr is DoubleConstant){
+ double v = ((DoubleConstant) real_expr).Value;
if (target_type == TypeManager.byte_type)
return new ByteConstant ((byte) v);
return new DecimalConstant ((decimal) v);
}
+ if (real_expr is CharConstant){
+ char v = ((CharConstant) real_expr).Value;
+
+ if (target_type == TypeManager.byte_type) {
+ if (!CheckRange (ec, v, target_type, Byte.MinValue, Byte.MaxValue))
+ return null;
+ return new ByteConstant ((byte) v);
+ }
+ if (target_type == TypeManager.sbyte_type) {
+ if (!CheckRange (ec, v, target_type, SByte.MinValue, SByte.MaxValue))
+ return null;
+ return new SByteConstant ((sbyte) v);
+ }
+ if (target_type == TypeManager.short_type) {
+ if (!CheckRange (ec, v, target_type, Int16.MinValue, Int16.MaxValue))
+ return null;
+ return new ShortConstant ((short) v);
+ }
+ if (target_type == TypeManager.int32_type)
+ return new IntConstant ((int) v);
+ if (target_type == TypeManager.uint32_type)
+ return new UIntConstant ((uint) v);
+ if (target_type == TypeManager.int64_type)
+ return new LongConstant ((long) v);
+ if (target_type == TypeManager.uint64_type)
+ return new ULongConstant ((ulong) v);
+ if (target_type == TypeManager.float_type)
+ return new FloatConstant ((float) v);
+ if (target_type == TypeManager.double_type)
+ return new DoubleConstant ((double) v);
+ if (target_type == TypeManager.char_type) {
+ if (!CheckRange (ec, v, target_type, Char.MinValue, Char.MaxValue))
+ return null;
+ return new CharConstant ((char) v);
+ }
+ if (target_type == TypeManager.decimal_type)
+ return new DecimalConstant ((decimal) v);
+ }
+
return null;
}
return null;
eclass = ExprClass.Value;
-
+
if (expr is Constant){
Expression e = TryReduce (ec, type);
if (e != null)
return e;
}
-
- expr = ConvertExplicit (ec, expr, type, loc);
+
+ expr = Convert.ExplicitConversion (ec, expr, type, loc);
return expr;
}
bool DelegateOperation;
// This must be kept in sync with Operator!!!
- static string [] oper_names;
-
+ public static readonly string [] oper_names;
+
static Binary ()
{
oper_names = new string [(int) Operator.TOP];
if (expr.Type == target_type)
return expr;
- return ConvertImplicit (ec, expr, target_type, loc);
+ return Convert.ImplicitConversion (ec, expr, target_type, loc);
}
public static void Error_OperatorAmbiguous (Location loc, Operator oper, Type l, Type r)
if (!check_user_conversions)
return false;
- if (ImplicitUserConversionExists (ec, l, t))
+ if (Convert.ImplicitUserConversionExists (ec, l, t))
return true;
- else if (ImplicitUserConversionExists (ec, r, t))
+ else if (Convert.ImplicitUserConversionExists (ec, r, t))
return true;
else
return false;
// conveted to type double.
//
if (r != TypeManager.double_type)
- right = ConvertImplicit (ec, right, TypeManager.double_type, loc);
+ right = Convert.ImplicitConversion (ec, right, TypeManager.double_type, loc);
if (l != TypeManager.double_type)
- left = ConvertImplicit (ec, left, TypeManager.double_type, loc);
+ left = Convert.ImplicitConversion (ec, left, TypeManager.double_type, loc);
type = TypeManager.double_type;
} else if (IsOfType (ec, l, r, TypeManager.float_type, check_user_conv)){
// converted to type float.
//
if (r != TypeManager.double_type)
- right = ConvertImplicit (ec, right, TypeManager.float_type, loc);
+ right = Convert.ImplicitConversion (ec, right, TypeManager.float_type, loc);
if (l != TypeManager.double_type)
- left = ConvertImplicit (ec, left, TypeManager.float_type, loc);
+ left = Convert.ImplicitConversion (ec, left, TypeManager.float_type, loc);
type = TypeManager.float_type;
} else if (IsOfType (ec, l, r, TypeManager.uint64_type, check_user_conv)){
Expression e;
if (right is IntConstant){
IntConstant ic = (IntConstant) right;
- e = TryImplicitIntConversion (l, ic);
+ e = Convert.TryImplicitIntConversion (l, ic);
if (e != null)
right = e;
} else if (right is LongConstant){
if (ll > 0)
right = new ULongConstant ((ulong) ll);
} else {
- e = ImplicitNumericConversion (ec, right, l, loc);
+ e = Convert.ImplicitNumericConversion (ec, right, l, loc);
if (e != null)
right = e;
}
other = right.Type;
} else {
if (left is IntConstant){
- e = TryImplicitIntConversion (r, (IntConstant) left);
+ e = Convert.TryImplicitIntConversion (r, (IntConstant) left);
if (e != null)
left = e;
} else if (left is LongConstant){
if (ll > 0)
left = new ULongConstant ((ulong) ll);
} else {
- e = ImplicitNumericConversion (ec, left, r, loc);
+ e = Convert.ImplicitNumericConversion (ec, left, r, loc);
if (e != null)
left = e;
}
// to type long.
//
if (l != TypeManager.int64_type)
- left = ConvertImplicit (ec, left, TypeManager.int64_type, loc);
+ left = Convert.ImplicitConversion (ec, left, TypeManager.int64_type, loc);
if (r != TypeManager.int64_type)
- right = ConvertImplicit (ec, right, TypeManager.int64_type, loc);
+ right = Convert.ImplicitConversion (ec, right, TypeManager.int64_type, loc);
type = TypeManager.int64_type;
} else if (IsOfType (ec, l, r, TypeManager.uint32_type, check_user_conv)){
}
} else if (l == TypeManager.decimal_type || r == TypeManager.decimal_type){
if (l != TypeManager.decimal_type)
- left = ConvertImplicit (ec, left, TypeManager.decimal_type, loc);
+ left = Convert.ImplicitConversion (ec, left, TypeManager.decimal_type, loc);
if (r != TypeManager.decimal_type)
- right = ConvertImplicit (ec, right, TypeManager.decimal_type, loc);
+ right = Convert.ImplicitConversion (ec, right, TypeManager.decimal_type, loc);
type = TypeManager.decimal_type;
} else {
left = ForceConversion (ec, left, TypeManager.int32_type);
}
right = e;
- if (((e = ConvertImplicit (ec, left, TypeManager.int32_type, loc)) != null) ||
- ((e = ConvertImplicit (ec, left, TypeManager.uint32_type, loc)) != null) ||
- ((e = ConvertImplicit (ec, left, TypeManager.int64_type, loc)) != null) ||
- ((e = ConvertImplicit (ec, left, TypeManager.uint64_type, loc)) != null)){
+ if (((e = Convert.ImplicitConversion (ec, left, TypeManager.int32_type, loc)) != null) ||
+ ((e = Convert.ImplicitConversion (ec, left, TypeManager.uint32_type, loc)) != null) ||
+ ((e = Convert.ImplicitConversion (ec, left, TypeManager.int64_type, loc)) != null) ||
+ ((e = Convert.ImplicitConversion (ec, left, TypeManager.uint64_type, loc)) != null)){
left = e;
type = e.Type;
bool overload_failed = false;
//
- // Step 1: Perform Operator Overload location
+ // Special cases: string comapred to null
//
- Expression left_expr, right_expr;
+ if (oper == Operator.Equality || oper == Operator.Inequality){
+ if ((l == TypeManager.string_type && (right is NullLiteral)) ||
+ (r == TypeManager.string_type && (left is NullLiteral))){
+ Type = TypeManager.bool_type;
+
+ return this;
+ }
+ }
+
+ //
+ // Do not perform operator overload resolution when both sides are
+ // built-in types
+ //
+ if (!(TypeManager.IsCLRType (l) && TypeManager.IsCLRType (r))){
+ //
+ // Step 1: Perform Operator Overload location
+ //
+ Expression left_expr, right_expr;
- string op = oper_names [(int) oper];
+ string op = oper_names [(int) oper];
- MethodGroupExpr union;
- left_expr = MemberLookup (ec, l, op, MemberTypes.Method, AllBindingFlags, loc);
- if (r != l){
- right_expr = MemberLookup (
- ec, r, op, MemberTypes.Method, AllBindingFlags, loc);
- union = Invocation.MakeUnionSet (left_expr, right_expr, loc);
- } else
- union = (MethodGroupExpr) left_expr;
-
- if (union != null) {
- Arguments = new ArrayList ();
- Arguments.Add (new Argument (left, Argument.AType.Expression));
- Arguments.Add (new Argument (right, Argument.AType.Expression));
+ MethodGroupExpr union;
+ left_expr = MemberLookup (ec, l, op, MemberTypes.Method, AllBindingFlags, loc);
+ if (r != l){
+ right_expr = MemberLookup (
+ ec, r, op, MemberTypes.Method, AllBindingFlags, loc);
+ union = Invocation.MakeUnionSet (left_expr, right_expr, loc);
+ } else
+ union = (MethodGroupExpr) left_expr;
- method = Invocation.OverloadResolve (ec, union, Arguments, loc);
- if (method != null) {
- MethodInfo mi = (MethodInfo) method;
+ if (union != null) {
+ Arguments = new ArrayList ();
+ Arguments.Add (new Argument (left, Argument.AType.Expression));
+ Arguments.Add (new Argument (right, Argument.AType.Expression));
- type = mi.ReturnType;
- return this;
- } else {
- overload_failed = true;
+ method = Invocation.OverloadResolve (ec, union, Arguments, Location.Null);
+ if (method != null) {
+ MethodInfo mi = (MethodInfo) method;
+
+ type = mi.ReturnType;
+ return this;
+ } else {
+ overload_failed = true;
+ }
}
- }
+ }
//
// Step 2: Default operations on CLI native types.
return new StringConstant (
ls.Value + rs.Value);
}
-
+
+ if (left is Binary){
+ Binary b = (Binary) left;
+
+ //
+ // Call String.Concat (string, string, string) or
+ // String.Concat (string, string, string, string)
+ // if possible.
+ //
+ if (b.oper == Operator.Addition &&
+ (b.method == TypeManager.string_concat_string_string_string ||
+ b.method == TypeManager.string_concat_string_string_string_string)){
+ ArrayList bargs = b.Arguments;
+ int count = bargs.Count;
+
+ if (count == 2){
+ Arguments = bargs;
+ Arguments.Add (new Argument (right, Argument.AType.Expression));
+ type = TypeManager.string_type;
+ method = TypeManager.string_concat_string_string_string;
+
+ return this;
+ } else if (count == 3){
+ Arguments = bargs;
+ Arguments.Add (new Argument (right, Argument.AType.Expression));
+ type = TypeManager.string_type;
+ method = TypeManager.string_concat_string_string_string_string;
+ return this;
+ }
+ }
+ }
+
// string + string
method = TypeManager.string_concat_string_string;
} else {
// string + object
method = TypeManager.string_concat_object_object;
- right = ConvertImplicit (ec, right,
- TypeManager.object_type, loc);
+ right = Convert.ImplicitConversion (
+ ec, right, TypeManager.object_type, loc);
if (right == null){
Error_OperatorCannotBeApplied (loc, OperName (oper), l, r);
return null;
}
method = TypeManager.string_concat_object_object;
- left = ConvertImplicit (ec, left, TypeManager.object_type, loc);
+ left = Convert.ImplicitConversion (ec, left, TypeManager.object_type, loc);
if (left == null){
Error_OperatorCannotBeApplied (loc, OperName (oper), l, r);
return null;
//
// Also, a standard conversion must exist from either one
//
- if (!(StandardConversionExists (left, r) ||
- StandardConversionExists (right, l))){
+ if (!(Convert.ImplicitStandardConversionExists (left, r) ||
+ Convert.ImplicitStandardConversionExists (right, l))){
Error_OperatorCannotBeApplied ();
return null;
}
}
if (!rie){
- temp = ConvertImplicit (ec, right, l, loc);
+ temp = Convert.ImplicitConversion (ec, right, l, loc);
if (temp != null)
right = temp;
else {
return null;
}
} if (!lie){
- temp = ConvertImplicit (ec, left, r, loc);
+ temp = Convert.ImplicitConversion (ec, left, r, loc);
if (temp != null){
left = temp;
l = r;
if (oper == Operator.Equality || oper == Operator.Inequality ||
oper == Operator.LessThanOrEqual || oper == Operator.LessThan ||
oper == Operator.GreaterThanOrEqual || oper == Operator.GreaterThan){
+ if (left.Type != right.Type){
+ Error_OperatorCannotBeApplied ();
+ return null;
+ }
type = TypeManager.bool_type;
return this;
}
if (left == null || right == null)
return null;
- if (left.Type == null)
- throw new Exception (
- "Resolve returned non null, but did not set the type! (" +
- left + ") at Line: " + loc.Row);
- if (right.Type == null)
- throw new Exception (
- "Resolve returned non null, but did not set the type! (" +
- right + ") at Line: "+ loc.Row);
-
eclass = ExprClass.Value;
- if (left is Constant && right is Constant){
+ Constant rc = right as Constant;
+ Constant lc = left as Constant;
+
+ if (rc != null & lc != null){
Expression e = ConstantFold.BinaryFold (
- ec, oper, (Constant) left, (Constant) right, loc);
- if (e != null)
- return e;
+ ec, oper, lc, rc, loc);
+ if (e != null)
+ return e;
}
return ResolveOperator (ec);
left.Emit (ec);
right.Emit (ec);
- bool isUnsigned = is_unsigned (left.Type);
+ Type t = left.Type;
+ bool isUnsigned = is_unsigned (t);
switch (oper){
case Operator.Equality:
break;
case Operator.LessThanOrEqual:
+ if (t == TypeManager.double_type || t == TypeManager.float_type)
+ isUnsigned = true;
+
if (onTrue)
if (isUnsigned)
ig.Emit (OpCodes.Ble_Un, target);
case Operator.GreaterThanOrEqual:
+ if (t == TypeManager.double_type || t == TypeManager.float_type)
+ isUnsigned = true;
if (onTrue)
if (isUnsigned)
ig.Emit (OpCodes.Bge_Un, target);
right.Emit (ec);
bool isUnsigned = is_unsigned (left.Type);
+
switch (oper){
case Operator.Multiply:
if (ec.CheckState){
break;
case Operator.LessThanOrEqual:
- if (isUnsigned)
+ Type lt = left.Type;
+
+ if (isUnsigned || (lt == TypeManager.double_type || lt == TypeManager.float_type))
ig.Emit (OpCodes.Cgt_Un);
else
ig.Emit (OpCodes.Cgt);
break;
case Operator.GreaterThanOrEqual:
- if (isUnsigned)
+ Type le = left.Type;
+
+ if (isUnsigned || (le == TypeManager.double_type || le == TypeManager.float_type))
ig.Emit (OpCodes.Clt_Un);
else
ig.Emit (OpCodes.Clt);
//
// We assume that `l' is always a pointer
//
- public PointerArithmetic (bool is_addition, Expression l, Expression r, Type t,
- Location loc)
+ public PointerArithmetic (bool is_addition, Expression l, Expression r, Type t, Location loc)
{
type = t;
eclass = ExprClass.Variable;
Type op_type = left.Type;
ILGenerator ig = ec.ig;
int size = GetTypeSize (op_type.GetElementType ());
+ Type rtype = right.Type;
- if (right.Type.IsPointer){
+ if (rtype.IsPointer){
//
// handle (pointer - pointer)
//
ig.Emit (OpCodes.Sizeof, op_type);
else
IntLiteral.EmitInt (ig, size);
+ if (rtype == TypeManager.int64_type)
+ ig.Emit (OpCodes.Conv_I8);
+ else if (rtype == TypeManager.uint64_type)
+ ig.Emit (OpCodes.Conv_U8);
ig.Emit (OpCodes.Mul);
+ ig.Emit (OpCodes.Conv_I);
}
if (is_add)
ig.Emit (OpCodes.Add);
if (expr == null)
return null;
- if (expr.Type != TypeManager.bool_type)
- expr = Expression.ConvertImplicitRequired (
- ec, expr, TypeManager.bool_type, loc);
+ if (expr.Type != TypeManager.bool_type){
+ expr = Expression.ResolveBoolean (
+ ec, expr, loc);
+
+ if (expr == null)
+ return null;
+ }
trueExpr = trueExpr.Resolve (ec);
falseExpr = falseExpr.Resolve (ec);
// First, if an implicit conversion exists from trueExpr
// to falseExpr, then the result type is of type falseExpr.Type
//
- conv = ConvertImplicit (ec, trueExpr, false_type, loc);
+ conv = Convert.ImplicitConversion (ec, trueExpr, false_type, loc);
if (conv != null){
//
// Check if both can convert implicitl to each other's type
//
- if (ConvertImplicit (ec, falseExpr, true_type, loc) != null){
+ if (Convert.ImplicitConversion (ec, falseExpr, true_type, loc) != null){
Error (172,
"Can not compute type of conditional expression " +
"as `" + TypeManager.CSharpName (trueExpr.Type) +
}
type = false_type;
trueExpr = conv;
- } else if ((conv = ConvertImplicit(ec, falseExpr, true_type,loc))!= null){
+ } else if ((conv = Convert.ImplicitConversion(ec, falseExpr, true_type,loc))!= null){
type = true_type;
falseExpr = conv;
} else {
public class LocalVariableReference : Expression, IAssignMethod, IMemoryLocation, IVariable {
public readonly string Name;
public readonly Block Block;
+ LocalInfo local_info;
VariableInfo variable_info;
bool is_readonly;
// Setting `is_readonly' to false will allow you to create a writable
// reference to a read-only variable. This is used by foreach and using.
public LocalVariableReference (Block block, string name, Location l,
- VariableInfo variable_info, bool is_readonly)
+ LocalInfo local_info, bool is_readonly)
: this (block, name, l)
{
- this.variable_info = variable_info;
+ this.local_info = local_info;
this.is_readonly = is_readonly;
}
public VariableInfo VariableInfo {
- get {
- if (variable_info == null) {
- variable_info = Block.GetVariableInfo (Name);
- is_readonly = variable_info.ReadOnly;
- }
- return variable_info;
- }
- }
-
- public bool IsAssigned (EmitContext ec, Location loc)
- {
- return VariableInfo.IsAssigned (ec, loc);
- }
-
- public bool IsFieldAssigned (EmitContext ec, string name, Location loc)
- {
- return VariableInfo.IsFieldAssigned (ec, name, loc);
- }
-
- public void SetAssigned (EmitContext ec)
- {
- VariableInfo.SetAssigned (ec);
- }
-
- public void SetFieldAssigned (EmitContext ec, string name)
- {
- VariableInfo.SetFieldAssigned (ec, name);
+ get { return variable_info; }
}
public bool IsReadOnly {
get {
- if (variable_info == null) {
- variable_info = Block.GetVariableInfo (Name);
- is_readonly = variable_info.ReadOnly;
- }
return is_readonly;
}
}
+
+ protected void DoResolveBase (EmitContext ec)
+ {
+ if (local_info == null) {
+ local_info = Block.GetLocalInfo (Name);
+ is_readonly = local_info.ReadOnly;
+ }
+
+ variable_info = Block.GetVariableInfo (local_info);
+ type = local_info.VariableType;
+ }
public override Expression DoResolve (EmitContext ec)
{
- VariableInfo vi = VariableInfo;
- Expression e;
-
- e = Block.GetConstantExpression (Name);
+ DoResolveBase (ec);
+
+ Expression e = Block.GetConstantExpression (Name);
if (e != null) {
- vi.Used = true;
+ local_info.Used = true;
+ eclass = ExprClass.Value;
return e;
}
- if (ec.DoFlowAnalysis && !IsAssigned (ec, loc))
+ if ((variable_info != null) && !variable_info.IsAssigned (ec, loc))
return null;
- type = vi.VariableType;
return this;
}
override public Expression DoResolveLValue (EmitContext ec, Expression right_side)
{
- VariableInfo vi = VariableInfo;
+ DoResolveBase (ec);
- if (ec.DoFlowAnalysis)
- ec.SetVariableAssigned (vi);
+ if (variable_info != null)
+ variable_info.SetAssigned (ec);
Expression e = DoResolve (ec);
public override void Emit (EmitContext ec)
{
- VariableInfo vi = VariableInfo;
ILGenerator ig = ec.ig;
- ig.Emit (OpCodes.Ldloc, vi.LocalBuilder);
- vi.Used = true;
+ if (local_info.LocalBuilder == null){
+ ec.EmitThis ();
+ ig.Emit (OpCodes.Ldfld, local_info.FieldBuilder);
+ } else
+ ig.Emit (OpCodes.Ldloc, local_info.LocalBuilder);
+
+ local_info.Used = true;
}
public void EmitAssign (EmitContext ec, Expression source)
{
ILGenerator ig = ec.ig;
- VariableInfo vi = VariableInfo;
- vi.Assigned = true;
+ local_info.Assigned = true;
- source.Emit (ec);
-
- ig.Emit (OpCodes.Stloc, vi.LocalBuilder);
+ if (local_info.LocalBuilder == null){
+ ec.EmitThis ();
+ source.Emit (ec);
+ ig.Emit (OpCodes.Stfld, local_info.FieldBuilder);
+ } else {
+ source.Emit (ec);
+ ig.Emit (OpCodes.Stloc, local_info.LocalBuilder);
+ }
}
public void AddressOf (EmitContext ec, AddressOp mode)
{
- VariableInfo vi = VariableInfo;
-
- ec.ig.Emit (OpCodes.Ldloca, vi.LocalBuilder);
+ if (local_info.LocalBuilder == null){
+ ec.EmitThis ();
+ ec.ig.Emit (OpCodes.Ldflda, local_info.FieldBuilder);
+ } else
+ ec.ig.Emit (OpCodes.Ldloca, local_info.LocalBuilder);
}
}
Parameters pars;
String name;
int idx;
+ Block block;
+ VariableInfo vi;
public Parameter.Modifier mod;
public bool is_ref, is_out;
- public ParameterReference (Parameters pars, int idx, string name, Location loc)
+ public ParameterReference (Parameters pars, Block block, int idx, string name, Location loc)
{
this.pars = pars;
+ this.block = block;
this.idx = idx;
this.name = name;
this.loc = loc;
eclass = ExprClass.Variable;
}
+ public VariableInfo VariableInfo {
+ get { return vi; }
+ }
+
public bool IsAssigned (EmitContext ec, Location loc)
{
- if (!is_out || !ec.DoFlowAnalysis)
+ if (!ec.DoFlowAnalysis || !is_out ||
+ ec.CurrentBranching.IsAssigned (vi))
return true;
- if (!ec.CurrentBranching.IsParameterAssigned (idx)) {
- Report.Error (165, loc,
- "Use of unassigned local variable `" + name + "'");
- return false;
- }
-
- return true;
+ Report.Error (165, loc,
+ "Use of unassigned parameter `" + name + "'");
+ return false;
}
public bool IsFieldAssigned (EmitContext ec, string field_name, Location loc)
{
- if (!is_out || !ec.DoFlowAnalysis)
+ if (!ec.DoFlowAnalysis || !is_out ||
+ ec.CurrentBranching.IsFieldAssigned (vi, field_name))
return true;
- if (ec.CurrentBranching.IsParameterAssigned (idx))
- return true;
-
- if (!ec.CurrentBranching.IsParameterAssigned (idx, field_name)) {
- Report.Error (170, loc,
- "Use of possibly unassigned field `" + field_name + "'");
- return false;
- }
-
- return true;
+ Report.Error (170, loc,
+ "Use of possibly unassigned field `" + field_name + "'");
+ return false;
}
public void SetAssigned (EmitContext ec)
{
if (is_out && ec.DoFlowAnalysis)
- ec.CurrentBranching.SetParameterAssigned (idx);
+ ec.CurrentBranching.SetAssigned (vi);
}
public void SetFieldAssigned (EmitContext ec, string field_name)
{
if (is_out && ec.DoFlowAnalysis)
- ec.CurrentBranching.SetParameterAssigned (idx, field_name);
+ ec.CurrentBranching.SetFieldAssigned (vi, field_name);
+ }
+
+ protected void DoResolveBase (EmitContext ec)
+ {
+ type = pars.GetParameterInfo (ec.DeclSpace, idx, out mod);
+ is_ref = (mod & Parameter.Modifier.ISBYREF) != 0;
+ is_out = (mod & Parameter.Modifier.OUT) != 0;
+ eclass = ExprClass.Variable;
+
+ if (is_out)
+ vi = block.ParameterMap [idx];
}
//
//
public override Expression DoResolve (EmitContext ec)
{
- type = pars.GetParameterInfo (ec.DeclSpace, idx, out mod);
- is_ref = (mod & Parameter.Modifier.ISBYREF) != 0;
- is_out = (mod & Parameter.Modifier.OUT) != 0;
- eclass = ExprClass.Variable;
+ DoResolveBase (ec);
if (is_out && ec.DoFlowAnalysis && !IsAssigned (ec, loc))
return null;
override public Expression DoResolveLValue (EmitContext ec, Expression right_side)
{
- type = pars.GetParameterInfo (ec.DeclSpace, idx, out mod);
- is_ref = (mod & Parameter.Modifier.ISBYREF) != 0;
- is_out = (mod & Parameter.Modifier.OUT) != 0;
- eclass = ExprClass.Variable;
+ DoResolveBase (ec);
- if (is_out && ec.DoFlowAnalysis)
- ec.SetParameterAssigned (idx);
+ SetAssigned (ec);
return this;
}
- static void EmitLdArg (ILGenerator ig, int x)
+ static public void EmitLdArg (ILGenerator ig, int x)
{
if (x <= 255){
switch (x){
public override void Emit (EmitContext ec)
{
ILGenerator ig = ec.ig;
+
+ if (ec.RemapToProxy){
+ ig.Emit (OpCodes.Ldarg_0);
+ ec.EmitArgument (idx);
+ return;
+ }
+
int arg_idx = idx;
if (!ec.IsStatic)
public void EmitAssign (EmitContext ec, Expression source)
{
ILGenerator ig = ec.ig;
+
+ if (ec.RemapToProxy){
+ ig.Emit (OpCodes.Ldarg_0);
+ source.Emit (ec);
+ ec.EmitStoreArgument (idx);
+ return;
+ }
+
int arg_idx = idx;
if (!ec.IsStatic)
public void AddressOf (EmitContext ec, AddressOp mode)
{
+ if (ec.RemapToProxy){
+ Report.Error (-1, "Report this: Taking the address of a remapped parameter not supported");
+ return;
+ }
+
int arg_idx = idx;
if (!ec.IsStatic)
public Type Type {
get {
if (ArgType == AType.Ref || ArgType == AType.Out)
- return TypeManager.LookupType (Expr.Type.ToString () + "&");
+ return TypeManager.GetReferenceType (Expr.Type);
else
return Expr.Type;
}
}
if (q == null) {
- Expression tmp = ConvertImplicit (ec, argument_expr, p, loc);
+ Expression tmp = Convert.ImplicitConversion (ec, argument_expr, p, loc);
if (tmp != null)
return 1;
Expression p_tmp = new EmptyExpression (p);
Expression q_tmp = new EmptyExpression (q);
- if (ImplicitConversionExists (ec, p_tmp, q) == true &&
- ImplicitConversionExists (ec, q_tmp, p) == false)
+ if (Convert.ImplicitConversionExists (ec, p_tmp, q) == true &&
+ Convert.ImplicitConversionExists (ec, q_tmp, p) == false)
return 1;
if (p == TypeManager.sbyte_type)
if (a_mod == p_mod) {
if (a_mod == Parameter.Modifier.NONE)
- if (!ImplicitConversionExists (ec, a.Expr, pd.ParameterType (i)))
+ if (!Convert.ImplicitConversionExists (ec, a.Expr, pd.ParameterType (i)))
return false;
if ((a_mod & Parameter.Modifier.ISBYREF) != 0) {
Type pt = pd.ParameterType (i);
if (!pt.IsByRef)
- pt = TypeManager.LookupType (pt.FullName + "&");
+ pt = TypeManager.GetReferenceType (pt);
if (pt != a.Type)
return false;
for (int i = pd_count - 1; i < arg_count; i++) {
Argument a = (Argument) arguments [i];
- if (!StandardConversionExists (a.Expr, element_type))
+ if (!Convert.ImplicitStandardConversionExists (a.Expr, element_type))
return false;
}
if (a_mod == p_mod ||
(a_mod == Parameter.Modifier.NONE && p_mod == Parameter.Modifier.PARAMS)) {
if (a_mod == Parameter.Modifier.NONE)
- if (!ImplicitConversionExists (ec, a.Expr, pd.ParameterType (i)))
+ if (!Convert.ImplicitConversionExists (ec, a.Expr, pd.ParameterType (i)))
return false;
if ((a_mod & Parameter.Modifier.ISBYREF) != 0) {
Type pt = pd.ParameterType (i);
if (!pt.IsByRef)
- pt = TypeManager.LookupType (pt.FullName + "&");
+ pt = TypeManager.GetReferenceType (pt);
if (pt != a.Type)
return false;
public static MethodBase OverloadResolve (EmitContext ec, MethodGroupExpr me,
ArrayList Arguments, Location loc)
{
- ArrayList afm = new ArrayList ();
MethodBase method = null;
Type current_type = null;
int argument_count;
return method;
}
+ static void Error_InvalidArguments (Location loc, int idx, MethodBase method,
+ Type delegate_type, string arg_sig, string par_desc)
+ {
+ if (delegate_type == null)
+ Report.Error (1502, loc,
+ "The best overloaded match for method '" +
+ FullMethodDesc (method) +
+ "' has some invalid arguments");
+ else
+ Report.Error (1594, loc,
+ "Delegate '" + delegate_type.ToString () +
+ "' has some invalid arguments.");
+ Report.Error (1503, loc,
+ String.Format ("Argument {0}: Cannot convert from '{1}' to '{2}'",
+ idx, arg_sig, par_desc));
+ }
+
public static bool VerifyArgumentsCompat (EmitContext ec, ArrayList Arguments,
int argument_count,
MethodBase method,
Argument a = (Argument) Arguments [j];
Expression a_expr = a.Expr;
Type parameter_type = pd.ParameterType (j);
+ Parameter.Modifier pm = pd.ParameterModifier (j);
+
+ if (pm == Parameter.Modifier.PARAMS){
+ if (chose_params_expanded)
+ parameter_type = TypeManager.TypeToCoreType (parameter_type.GetElementType ());
+ } else {
+ //
+ // Check modifiers
+ //
+ if (pd.ParameterModifier (j) != a.GetParameterModifier ()){
+ if (!Location.IsNull (loc))
+ Error_InvalidArguments (
+ loc, j, method, delegate_type,
+ Argument.FullDesc (a), pd.ParameterDesc (j));
+ return false;
+ }
+ }
- if (pd.ParameterModifier (j) == Parameter.Modifier.PARAMS &&
- chose_params_expanded)
- parameter_type = TypeManager.TypeToCoreType (parameter_type.GetElementType ());
-
+ //
+ // Check Type
+ //
if (a.Type != parameter_type){
Expression conv;
- conv = ConvertImplicit (ec, a_expr, parameter_type, loc);
+ conv = Convert.ImplicitConversion (ec, a_expr, parameter_type, loc);
if (conv == null) {
- if (!Location.IsNull (loc)) {
- if (delegate_type == null)
- Report.Error (1502, loc,
- "The best overloaded match for method '" +
- FullMethodDesc (method) +
- "' has some invalid arguments");
- else
- Report.Error (1594, loc,
- "Delegate '" + delegate_type.ToString () +
- "' has some invalid arguments.");
- Report.Error (1503, loc,
- "Argument " + (j+1) +
- ": Cannot convert from '" + Argument.FullDesc (a)
- + "' to '" + pd.ParameterDesc (j) + "'");
- }
-
+ if (!Location.IsNull (loc))
+ Error_InvalidArguments (
+ loc, j, method, delegate_type,
+ Argument.FullDesc (a), pd.ParameterDesc (j));
return false;
}
return true;
}
-
+
public override Expression DoResolve (EmitContext ec)
{
//
if (expr is BaseAccess)
is_base = true;
+ Expression old = expr;
+
expr = expr.Resolve (ec, ResolveFlags.VariableOrValue | ResolveFlags.MethodGroup);
if (expr == null)
return null;
}
if (!(expr is MethodGroupExpr)){
- expr.Error118 (ResolveFlags.MethodGroup);
+ expr.Error_UnexpectedKind (ResolveFlags.MethodGroup);
return null;
}
return null;
}
+ if ((method.Attributes & MethodAttributes.SpecialName) != 0){
+ if (TypeManager.IsSpecialMethod (method))
+ Report.Error (571, loc, method.Name + ": can not call operator or accessor");
+ }
+
eclass = ExprClass.Value;
return this;
}
{
MethodGroupExpr mg = (MethodGroupExpr) this.expr;
- EmitCall (
- ec, is_base, method.IsStatic, mg.InstanceExpression, method, Arguments, loc);
+ EmitCall (ec, is_base, method.IsStatic, mg.InstanceExpression, method, Arguments, loc);
}
public override void EmitStatement (EmitContext ec)
/// <summary>
/// Implements the new expression
/// </summary>
- public class New : ExpressionStatement {
+ public class New : ExpressionStatement, IMemoryLocation {
public readonly ArrayList Arguments;
public readonly Expression RequestedType;
// instead of Call + Push-temp on value types.
// value_target = MyEmptyExpression;
}
-
+
public override Expression DoResolve (EmitContext ec)
{
+ //
+ // The New DoResolve might be called twice when initializing field
+ // expressions (see EmitFieldInitializers, the call to
+ // GetInitializerExpression will perform a resolve on the expression,
+ // and later the assign will trigger another resolution
+ //
+ // This leads to bugs (#37014)
+ //
+ if (type != null)
+ return this;
+
type = ec.DeclSpace.ResolveType (RequestedType, false, loc);
if (type == null)
return (new NewDelegate (type, Arguments, loc)).Resolve (ec);
if (type.IsInterface || type.IsAbstract){
- Error (
- 144, "It is not possible to create instances of interfaces " +
- "or abstract classes");
+ Error (144, "It is not possible to create instances of interfaces or abstract classes");
return null;
}
if (! (ml is MethodGroupExpr)){
if (!is_struct){
- ml.Error118 ("method group");
+ ml.Error_UnexpectedKind ("method group");
return null;
}
}
if (method == null) {
if (!is_struct || Arguments.Count > 0) {
- Error (1501,
- "New invocation: Can not find a constructor for " +
- "this argument list");
- return null;
+ Error (1501, String.Format (
+ "New invocation: Can not find a constructor in `{0}' for this argument list",
+ TypeManager.CSharpName (type)));
+ return null;
}
}
return this;
if (DoEmit (ec, false))
ec.ig.Emit (OpCodes.Pop);
}
+
+ public void AddressOf (EmitContext ec, AddressOp Mode)
+ {
+ if (!type.IsValueType){
+ //
+ // We throw an exception. So far, I believe we only need to support
+ // value types:
+ // foreach (int j in new StructType ())
+ // see bug 42390
+ //
+ throw new Exception ("AddressOf should not be used for classes");
+ }
+
+ if (!value_target_set)
+ value_target = new LocalTemporary (ec, type);
+
+ IMemoryLocation ml = (IMemoryLocation) value_target;
+ ml.AddressOf (ec, AddressOp.Store);
+ if (method != null)
+ Invocation.EmitArguments (ec, method, Arguments);
+
+ if (method == null)
+ ec.ig.Emit (OpCodes.Initobj, type);
+ else
+ ec.ig.Emit (OpCodes.Call, (ConstructorInfo) method);
+
+ ((IMemoryLocation) value_target).AddressOf (ec, Mode);
+ }
}
/// <summary>
Error_IncorrectArrayInitializer ();
return false;
}
+ if (specified_dims && (idx + 1 >= arguments.Count)){
+ Error (623, "Array initializers can only be used in a variable or field initializer, try using the new expression");
+ return false;
+ }
+
bool ret = CheckIndices (ec, (ArrayList) o, idx + 1, specified_dims);
if (!ret)
return false;
// Console.WriteLine ("I got: " + tmp);
// Handle initialization from vars, fields etc.
- Expression conv = ConvertImplicitRequired (
+ Expression conv = Convert.ImplicitConversionRequired (
ec, tmp, underlying_type, loc);
if (conv == null)
bool old_checked = ec.CheckState;
ec.CheckState = true;
- target = ConvertImplicit (ec, source, TypeManager.int32_type, loc);
+ target = Convert.ImplicitConversion (ec, source, TypeManager.int32_type, loc);
if (target == null){
- target = ConvertImplicit (ec, source, TypeManager.uint32_type, loc);
+ target = Convert.ImplicitConversion (ec, source, TypeManager.uint32_type, loc);
if (target == null){
- target = ConvertImplicit (ec, source, TypeManager.int64_type, loc);
+ target = Convert.ImplicitConversion (ec, source, TypeManager.int64_type, loc);
if (target == null){
- target = ConvertImplicit (ec, source, TypeManager.uint64_type, loc);
+ target = Convert.ImplicitConversion (ec, source, TypeManager.uint64_type, loc);
if (target == null)
- Expression.Error_CannotConvertImplicit (loc, source.Type, TypeManager.int32_type);
+ Convert.Error_CannotImplicitConversion (loc, source.Type, TypeManager.int32_type);
}
}
}
AllBindingFlags, loc);
if (!(ml is MethodGroupExpr)) {
- ml.Error118 ("method group");
+ ml.Error_UnexpectedKind ("method group");
return null;
}
//
n.DisableTemporaryValueType ();
}
-
+
ig.Emit (OpCodes.Ldelema, etype);
}
e.Emit (ec);
-
- if (dims == 1)
- ArrayAccess.EmitStoreOpcode (ig, array_element_type);
- else
- ig.Emit (OpCodes.Call, set);
- }
+
+ if (dims == 1)
+ ArrayAccess.EmitStoreOpcode (ig, array_element_type);
+ else
+ ig.Emit (OpCodes.Call, set);
+
+ }
}
//
{
DoEmit (ec, true);
}
-
+
+ public object EncodeAsAttribute ()
+ {
+ if (!is_one_dimensional){
+ Report.Error (-211, Location, "attribute can not encode multi-dimensional arrays");
+ return null;
+ }
+
+ if (array_data == null){
+ Report.Error (-212, Location, "array should be initialized when passing it to an attribute");
+ return null;
+ }
+
+ object [] ret = new object [array_data.Count];
+ int i = 0;
+ foreach (Expression e in array_data){
+ object v;
+
+ if (e is NullLiteral)
+ v = null;
+ else {
+ if (!Attribute.GetAttributeArgumentExpression (e, Location, out v))
+ return null;
+ }
+ ret [i++] = v;
+ }
+ return ret;
+ }
}
/// <summary>
public class This : Expression, IAssignMethod, IMemoryLocation, IVariable {
Block block;
- VariableInfo vi;
+ VariableInfo variable_info;
public This (Block block, Location loc)
{
this.loc = loc;
}
- public bool IsAssigned (EmitContext ec, Location loc)
- {
- if (vi == null)
- return true;
-
- return vi.IsAssigned (ec, loc);
+ public VariableInfo VariableInfo {
+ get { return variable_info; }
}
- public bool IsFieldAssigned (EmitContext ec, string field_name, Location loc)
+ public bool ResolveBase (EmitContext ec)
{
- if (vi == null)
- return true;
+ eclass = ExprClass.Variable;
+ type = ec.ContainerType;
- return vi.IsFieldAssigned (ec, field_name, loc);
- }
+ if (ec.IsStatic) {
+ Error (26, "Keyword this not valid in static code");
+ return false;
+ }
- public void SetAssigned (EmitContext ec)
- {
- if (vi != null)
- vi.SetAssigned (ec);
- }
+ if ((block != null) && (block.ThisVariable != null))
+ variable_info = block.GetVariableInfo (block.ThisVariable);
- public void SetFieldAssigned (EmitContext ec, string field_name)
- {
- if (vi != null)
- vi.SetFieldAssigned (ec, field_name);
+ return true;
}
public override Expression DoResolve (EmitContext ec)
{
- eclass = ExprClass.Variable;
- type = ec.ContainerType;
-
- if (ec.IsStatic){
- Error (26, "Keyword this not valid in static code");
+ if (!ResolveBase (ec))
return null;
+
+ if ((variable_info != null) && !variable_info.IsAssigned (ec)) {
+ Error (188, "The this object cannot be used before all " +
+ "of its fields are assigned to");
+ variable_info.SetAssigned (ec);
+ return this;
}
- if (block != null)
- vi = block.ThisVariable;
+ if (ec.IsFieldInitializer) {
+ Error (27, "Keyword `this' can't be used outside a constructor, " +
+ "a method or a property.");
+ return null;
+ }
return this;
}
override public Expression DoResolveLValue (EmitContext ec, Expression right_side)
{
- DoResolve (ec);
+ if (!ResolveBase (ec))
+ return null;
- VariableInfo vi = ec.CurrentBlock.ThisVariable;
- if (vi != null)
- vi.SetAssigned (ec);
+ if (variable_info != null)
+ variable_info.SetAssigned (ec);
if (ec.TypeContainer is Class){
Error (1604, "Cannot assign to `this'");
public override Expression DoResolve (EmitContext ec)
{
if (!ec.InUnsafe) {
- Error (233, "Sizeof may only be used in an unsafe context " +
- "(consider using System.Runtime.InteropServices.Marshal.Sizeof");
+ Report.Error (
+ 233, loc, "Sizeof may only be used in an unsafe context " +
+ "(consider using System.Runtime.InteropServices.Marshal.Sizeof");
return null;
}
return null;
if (!TypeManager.IsUnmanagedType (type_queried)){
- Report.Error (208, "Cannot take the size of an unmanaged type (" + TypeManager.CSharpName (type_queried) + ")");
+ Report.Error (208, loc, "Cannot take the size of an unmanaged type (" + TypeManager.CSharpName (type_queried) + ")");
return null;
}
/// <summary>
/// Implements the member access expression
/// </summary>
- public class MemberAccess : Expression, ITypeExpression {
+ public class MemberAccess : Expression {
public readonly string Identifier;
Expression expr;
- Expression member_lookup;
public MemberAccess (Expression expr, string id, Location l)
{
Const c = TypeManager.LookupConstant ((FieldBuilder) fi);
if (c != null) {
- object o = c.LookupConstantValue (ec);
+ object o = c.LookupConstantValue ();
+ if (o == null)
+ return null;
+
object real_value = ((Constant) c.Expr).GetValue ();
return Constantify (real_value, fi.FieldType);
return member_lookup;
}
- if (member_lookup is TypeExpr){
- member_lookup.Resolve (ec, ResolveFlags.Type);
- return member_lookup;
- }
-
Console.WriteLine ("Left is: " + left);
Report.Error (-100, loc, "Support for [" + member_lookup + "] is not present yet");
Environment.Exit (0);
{
if (type != null)
throw new Exception ();
+
//
// Resolve the expression with flow analysis turned off, we'll do the definite
// assignment checks later. This is because we don't know yet what the expression
Expression original = expr;
expr = expr.Resolve (ec, flags | ResolveFlags.DisableFlowAnalysis);
-
if (expr == null)
return null;
if (expr is SimpleName){
SimpleName child_expr = (SimpleName) expr;
-
- Expression new_expr = new SimpleName (child_expr.Name + "." + Identifier, loc);
+
+ Expression new_expr = new SimpleName (child_expr.Name, Identifier, loc);
return new_expr.Resolve (ec, flags);
}
int errors = Report.Errors;
Type expr_type = expr.Type;
- if ((expr is TypeExpr) && (expr_type.IsSubclassOf (TypeManager.enum_type))){
-
- Enum en = TypeManager.LookupEnum (expr_type);
-
- if (en != null) {
- object value = en.LookupEnumValue (ec, Identifier, loc);
-
- if (value != null){
- Constant c = Constantify (value, en.UnderlyingType);
- return new EnumConstant (c, expr_type);
+ if (expr is TypeExpr){
+ if (!ec.DeclSpace.CheckAccessLevel (expr_type)){
+ Error (122, "`" + expr_type + "' " +
+ "is inaccessible because of its protection level");
+ return null;
+ }
+
+ if (expr_type == TypeManager.enum_type || expr_type.IsSubclassOf (TypeManager.enum_type)){
+ Enum en = TypeManager.LookupEnum (expr_type);
+
+ if (en != null) {
+ object value = en.LookupEnumValue (ec, Identifier, loc);
+
+ if (value != null){
+ Constant c = Constantify (value, en.UnderlyingType);
+ return new EnumConstant (c, expr_type);
+ }
}
}
}
-
+
if (expr_type.IsPointer){
Error (23, "The `.' operator can not be applied to pointer operands (" +
TypeManager.CSharpName (expr_type) + ")");
return null;
}
+ Expression member_lookup;
member_lookup = MemberLookupFinal (ec, expr_type, expr_type, Identifier, loc);
if (member_lookup == null)
return null;
- if (member_lookup is TypeExpr){
- member_lookup.Resolve (ec, ResolveFlags.Type);
+ if (member_lookup is TypeExpr)
return member_lookup;
- } else if ((flags & ResolveFlags.MaskExprClass) == ResolveFlags.Type)
- return null;
member_lookup = ResolveMemberAccess (ec, member_lookup, expr, loc, original);
if (member_lookup == null)
ResolveFlags.SimpleName | ResolveFlags.Type);
}
- public Expression DoResolveType (EmitContext ec)
+ public override Expression ResolveAsTypeStep (EmitContext ec)
{
- return DoResolve (ec, null, ResolveFlags.Type);
+ Expression new_expr = expr.ResolveAsTypeStep (ec);
+
+ if (new_expr == null)
+ return null;
+
+ if (new_expr is SimpleName){
+ SimpleName child_expr = (SimpleName) new_expr;
+
+ new_expr = new SimpleName (child_expr.Name, Identifier, loc);
+
+ return new_expr.ResolveAsTypeStep (ec);
+ }
+
+ Type expr_type = new_expr.Type;
+
+ if (expr_type.IsPointer){
+ Error (23, "The `.' operator can not be applied to pointer operands (" +
+ TypeManager.CSharpName (expr_type) + ")");
+ return null;
+ }
+
+ Expression member_lookup;
+ member_lookup = MemberLookupFinal (ec, expr_type, expr_type, Identifier, loc);
+ if (member_lookup == null)
+ return null;
+
+ if (member_lookup is TypeExpr){
+ member_lookup.Resolve (ec, ResolveFlags.Type);
+ return member_lookup;
+ }
+
+ return null;
}
public override void Emit (EmitContext ec)
public override Expression DoResolve (EmitContext ec)
{
+ bool last_check = ec.CheckState;
bool last_const_check = ec.ConstantCheckState;
+ ec.CheckState = true;
ec.ConstantCheckState = true;
Expr = Expr.Resolve (ec);
+ ec.CheckState = last_check;
ec.ConstantCheckState = last_const_check;
if (Expr == null)
public override Expression DoResolve (EmitContext ec)
{
+ bool last_check = ec.CheckState;
bool last_const_check = ec.ConstantCheckState;
+ ec.CheckState = false;
ec.ConstantCheckState = false;
Expr = Expr.Resolve (ec);
+ ec.CheckState = last_check;
ec.ConstantCheckState = last_const_check;
if (Expr == null)
/// An Element Access expression.
///
/// During semantic analysis these are transformed into
- /// IndexerAccess or ArrayAccess
+ /// IndexerAccess, ArrayAccess or a PointerArithmetic.
/// </summary>
public class ElementAccess : Expression {
public ArrayList Arguments;
Type t = Expr.Type;
if (t == TypeManager.void_ptr_type){
- Error (
- 242,
- "The array index operation is not valid for void pointers");
+ Error (242, "The array index operation is not valid for void pointers");
return null;
}
if (Arguments.Count != 1){
- Error (
- 196,
- "A pointer must be indexed by a single value");
+ Error (196, "A pointer must be indexed by a single value");
return null;
}
- Expression p = new PointerArithmetic (true, Expr, ((Argument)Arguments [0]).Expr,
- t, loc);
+ Expression p;
+
+ p = new PointerArithmetic (true, Expr, ((Argument)Arguments [0]).Expr, t, loc);
return new Indirection (p, loc);
}
// As long as the type is valid
if (!(eclass == ExprClass.Variable || eclass == ExprClass.PropertyAccess ||
eclass == ExprClass.Value)) {
- ea.Expr.Error118 ("variable or value");
+ ea.Expr.Error_UnexpectedKind ("variable or value");
return null;
}
#endif
/// </summary>
static public OpCode GetStoreOpcode (Type t, out bool is_stobj)
{
+ //Console.WriteLine (new System.Diagnostics.StackTrace ());
is_stobj = false;
t = TypeManager.TypeToCoreType (t);
if (TypeManager.IsEnumType (t) && t != TypeManager.enum_type)
return OpCodes.Stelem_R4;
else if (t == TypeManager.double_type)
return OpCodes.Stelem_R8;
- else if (t == TypeManager.intptr_type)
- return OpCodes.Stelem_I;
- else if (t.IsValueType) {
+ else if (t == TypeManager.intptr_type) {
+ is_stobj = true;
+ return OpCodes.Stobj;
+ } else if (t.IsValueType) {
is_stobj = true;
return OpCodes.Stobj;
} else
int arg_count = ea.Arguments.Count;
Type [] args = new Type [arg_count];
MethodInfo address;
- string ptr_type_name;
Type ret_type;
- ptr_type_name = type.FullName + "&";
- ret_type = Type.GetType (ptr_type_name);
+ ret_type = TypeManager.GetReferenceType (type);
- //
- // It is a type defined by the source code we are compiling
- //
- if (ret_type == null){
- ret_type = mb.GetType (ptr_type_name);
- }
-
for (int i = 0; i < arg_count; i++){
//args [i++] = a.Type;
args [i] = TypeManager.int32_type;
class Indexers {
- public ArrayList getters, setters;
+ public ArrayList properties;
static Hashtable map;
static Indexers ()
map = new Hashtable ();
}
- Indexers (MemberInfo [] mi)
+ Indexers ()
+ {
+ properties = new ArrayList ();
+ }
+
+ void Append (MemberInfo [] mi)
{
foreach (PropertyInfo property in mi){
MethodInfo get, set;
get = property.GetGetMethod (true);
- if (get != null){
- if (getters == null)
- getters = new ArrayList ();
-
- getters.Add (get);
- }
-
set = property.GetSetMethod (true);
- if (set != null){
- if (setters == null)
- setters = new ArrayList ();
- setters.Add (set);
- }
+ properties.Add (new Pair (get, set));
}
}
- static private Indexers GetIndexersForTypeOrInterface (Type caller_type, Type lookup_type)
+ static private MemberInfo [] GetIndexersForTypeOrInterface (Type caller_type, Type lookup_type)
{
- Indexers ix = (Indexers) map [lookup_type];
-
- if (ix != null)
- return ix;
-
string p_name = TypeManager.IndexerPropertyName (lookup_type);
MemberInfo [] mi = TypeManager.MemberLookup (
if (mi == null || mi.Length == 0)
return null;
- ix = new Indexers (mi);
- map [lookup_type] = ix;
-
- return ix;
+ return mi;
}
static public Indexers GetIndexersForType (Type caller_type, Type lookup_type, Location loc)
if (ix != null)
return ix;
- ix = GetIndexersForTypeOrInterface (caller_type, lookup_type);
- if (ix != null)
- return ix;
+ Type copy = lookup_type;
+ while (copy != TypeManager.object_type && copy != null){
+ MemberInfo [] mi = GetIndexersForTypeOrInterface (caller_type, copy);
+
+ if (mi != null){
+ if (ix == null)
+ ix = new Indexers ();
+
+ ix.Append (mi);
+ }
+
+ copy = copy.BaseType;
+ }
Type [] ifaces = TypeManager.GetInterfaces (lookup_type);
if (ifaces != null) {
foreach (Type itype in ifaces) {
- ix = GetIndexersForTypeOrInterface (caller_type, itype);
- if (ix != null)
- return ix;
+ MemberInfo [] mi = GetIndexersForTypeOrInterface (caller_type, itype);
+ if (mi != null){
+ if (ix == null)
+ ix = new Indexers ();
+
+ ix.Append (mi);
+ }
}
}
- return null;
+ return ix;
}
}
// Points to our "data" repository
//
MethodInfo get, set;
- Indexers ilist;
ArrayList set_arguments;
bool is_base_indexer;
public override Expression DoResolve (EmitContext ec)
{
+ ArrayList AllGetters = new ArrayList();
if (!CommonResolve (ec))
return null;
bool found_any = false, found_any_getters = false;
Type lookup_type = indexer_type;
- while (lookup_type != null) {
- ilist = Indexers.GetIndexersForType (current_type, lookup_type, loc);
-
- if (ilist == null) {
- lookup_type = lookup_type.BaseType;
- continue;
- }
+ Indexers ilist;
+ ilist = Indexers.GetIndexersForType (current_type, lookup_type, loc);
+ if (ilist != null) {
found_any = true;
-
- //
- // Step 2: find the proper match
- //
- if (ilist.getters != null && ilist.getters.Count > 0) {
- found_any_getters = true;
- get = (MethodInfo) Invocation.OverloadResolve (
- ec, new MethodGroupExpr (ilist.getters, loc), arguments, loc);
-
- if (get != null)
- break;
+ if (ilist.properties != null) {
+ foreach (Pair o in ilist.properties) {
+ if (o.First != null)
+ AllGetters.Add(o.First);
+ }
}
+ }
- lookup_type = lookup_type.BaseType;
+ if (AllGetters.Count > 0) {
+ found_any_getters = true;
+ get = (MethodInfo) Invocation.OverloadResolve (
+ ec, new MethodGroupExpr (AllGetters, loc), arguments, loc);
}
if (!found_any) {
public override Expression DoResolveLValue (EmitContext ec, Expression right_side)
{
+ ArrayList AllSetters = new ArrayList();
if (!CommonResolve (ec))
return null;
Type right_type = right_side.Type;
bool found_any = false, found_any_setters = false;
- Type lookup_type = indexer_type;
- while (lookup_type != null) {
- ilist = Indexers.GetIndexersForType (current_type, lookup_type, loc);
-
- if (ilist == null) {
- lookup_type = lookup_type.BaseType;
- continue;
- }
+ Indexers ilist = Indexers.GetIndexersForType (current_type, indexer_type, loc);
+ if (ilist != null) {
found_any = true;
-
- if (ilist.setters != null && ilist.setters.Count > 0) {
- found_any_setters = true;
-
- set_arguments = (ArrayList) arguments.Clone ();
- set_arguments.Add (new Argument (right_side, Argument.AType.Expression));
- set = (MethodInfo) Invocation.OverloadResolve (
- ec, new MethodGroupExpr (ilist.setters, loc), set_arguments, loc);
-
- if (set != null)
- break;
+ if (ilist.properties != null) {
+ foreach (Pair o in ilist.properties) {
+ if (o.Second != null)
+ AllSetters.Add(o.Second);
+ }
}
-
-
- lookup_type = lookup_type.BaseType;
+ }
+ if (AllSetters.Count > 0) {
+ found_any_setters = true;
+ set_arguments = (ArrayList) arguments.Clone ();
+ set_arguments.Add (new Argument (right_side, Argument.AType.Expression));
+ set = (MethodInfo) Invocation.OverloadResolve (
+ ec, new MethodGroupExpr (AllSetters, loc),
+ set_arguments, loc);
}
if (!found_any) {
Report.Error (205, loc, "Cannot call an abstract base indexer: " + Invocation.FullMethodDesc (set));
return null;
}
- type = TypeManager.void_type;
+
+ //
+ // Now look for the actual match in the list of indexers to set our "return" type
+ //
+ type = TypeManager.void_type; // default value
+ foreach (Pair t in ilist.properties){
+ if (t.Second == set){
+ if (t.First != null)
+ type = ((MethodInfo) t.First).ReturnType;
+ break;
+ }
+ }
+
eclass = ExprClass.IndexerAccess;
return this;
}
public override void Emit (EmitContext ec)
{
- Invocation.EmitCall (ec, false, false, instance_expr, get, arguments, loc);
+ Invocation.EmitCall (ec, is_base_indexer, false, instance_expr, get, arguments, loc);
}
//
//
public void EmitAssign (EmitContext ec, Expression source)
{
- Invocation.EmitCall (ec, false, false, instance_expr, set, set_arguments, loc);
+ Invocation.EmitCall (ec, is_base_indexer, false, instance_expr, set, set_arguments, loc);
}
}
//
// This is just because we might want to reuse this bad boy
// instead of creating gazillions of EmptyExpressions.
- // (CanConvertImplicit uses it)
+ // (CanImplicitConversion uses it)
//
public void SetType (Type t)
{
// the type specification, we just use this to construct the type
// one bit at a time.
// </summary>
- public class ComposedCast : Expression, ITypeExpression {
+ public class ComposedCast : Expression {
Expression left;
string dim;
loc = l;
}
- public Expression DoResolveType (EmitContext ec)
+ public override Expression ResolveAsTypeStep (EmitContext ec)
{
Type ltype = ec.DeclSpace.ResolveType (left, false, loc);
if (ltype == null)
public override Expression DoResolve (EmitContext ec)
{
- return DoResolveType (ec);
+ return ResolveAsTypeStep (ec);
}
public override void Emit (EmitContext ec)
Type array_type = array.Type.GetElementType ();
this.array = array;
-
- string array_ptr_type_name = array_type.FullName + "*";
-
- type = Type.GetType (array_ptr_type_name);
- if (type == null){
- ModuleBuilder mb = CodeGen.ModuleBuilder;
-
- type = mb.GetType (array_ptr_type_name);
- }
+ type = TypeManager.GetPointerType (array_type);
eclass = ExprClass.Value;
loc = l;
}
return null;
if (count.Type != TypeManager.int32_type){
- count = ConvertImplicitRequired (ec, count, TypeManager.int32_type, loc);
+ count = Convert.ImplicitConversionRequired (ec, count, TypeManager.int32_type, loc);
if (count == null)
return null;
}
if (!TypeManager.VerifyUnManaged (otype, loc))
return null;
- string ptr_name = otype.FullName + "*";
- type = Type.GetType (ptr_name);
- if (type == null){
- ModuleBuilder mb = CodeGen.ModuleBuilder;
-
- type = mb.GetType (ptr_name);
- }
+ type = TypeManager.GetPointerType (otype);
eclass = ExprClass.Value;
return this;
projects / mono.git / blobdiff