Emit (ec);
if (leave_copy) {
ec.ig.Emit (OpCodes.Dup);
- temporary = new LocalTemporary (ec, expr.Type);
+ temporary = new LocalTemporary (expr.Type);
temporary.Store (ec);
}
}
source.Emit (ec);
if (leave_copy) {
ec.ig.Emit (OpCodes.Dup);
- temporary = new LocalTemporary (ec, expr.Type);
+ temporary = new LocalTemporary (expr.Type);
temporary.Store (ec);
}
this.is_expr = is_expr;
((IAssignMethod) expr).EmitAssign (ec, this, is_expr && (mode == Mode.PreIncrement || mode == Mode.PreDecrement), true);
}
-
public override void Emit (EmitContext ec)
{
}
return this;
- }
+ }
}
/// <summary>
return null;
}
- public override bool GetAttributableValue (out object value)
+ public override bool GetAttributableValue (Type valueType, out object value)
{
- return expr.GetAttributableValue (out value);
+ return expr.GetAttributableValue (valueType, out value);
}
}
this.expr = expr;
this.loc = loc;
- if (target_type == TypeManager.system_void_expr) {
+ if (target_type == TypeManager.system_void_expr)
Report.Error (1547, loc, "Keyword `void' cannot be used in this context");
- }
}
public Expression TargetType {
- get {
- return target_type;
- }
+ get { return target_type; }
}
public Expression Expr {
- get {
- return expr;
- }
- set {
- expr = value;
- }
- }
-
- public override Expression DoResolveLValue (EmitContext ec, Expression right_side)
- {
- expr = expr.DoResolveLValue (ec, right_side);
- if (expr == null)
- return null;
-
- return ResolveRest (ec);
+ get { return expr; }
+ set { expr = value; }
}
public override Expression DoResolve (EmitContext ec)
if (expr == null)
return null;
- return ResolveRest (ec);
- }
-
- Expression ResolveRest (EmitContext ec)
- {
TypeExpr target = target_type.ResolveAsTypeTerminal (ec, false);
if (target == null)
return null;
public override void Emit (EmitContext ec)
{
- //
- // This one will never happen
- //
throw new Exception ("Should not happen");
}
}
+ "'");
}
- bool IsOfType (EmitContext ec, Type l, Type r, Type t, bool check_user_conversions)
+ static bool IsOfType (EmitContext ec, Type l, Type r, Type t, bool check_user_conversions)
{
if ((l == t) || (r == t))
return true;
if (ll >= 0)
right = new ULongConstant ((ulong) ll, right.Location);
} else {
- e = Convert.ImplicitNumericConversion (ec, right, l);
+ e = Convert.ImplicitNumericConversion (right, l);
if (e != null)
right = e;
}
if (ll > 0)
left = new ULongConstant ((ulong) ll, right.Location);
} else {
- e = Convert.ImplicitNumericConversion (ec, left, r);
+ e = Convert.ImplicitNumericConversion (left, r);
if (e != null)
left = e;
}
// Also, a standard conversion must exist from either one
//
bool left_to_right =
- Convert.ImplicitStandardConversionExists (ec, left, r);
+ Convert.ImplicitStandardConversionExists (left, r);
bool right_to_left = !left_to_right &&
- Convert.ImplicitStandardConversionExists (ec, right, l);
+ Convert.ImplicitStandardConversionExists (right, l);
if (!left_to_right && !right_to_left) {
Error_OperatorCannotBeApplied ();
// +, -, *, /, %, &, |, ^, ==, !=, <, >, <=, >=
//
if (oper == Operator.Addition || oper == Operator.Subtraction) {
- if (l.IsSubclassOf (TypeManager.delegate_type)){
+ if (TypeManager.IsDelegateType (l)){
if (((right.eclass == ExprClass.MethodGroup) ||
(r == TypeManager.anonymous_method_type))){
if ((RootContext.Version != LanguageVersion.ISO_1)){
r = right.Type;
}
}
-
- if (r.IsSubclassOf (TypeManager.delegate_type)){
+
+ if (TypeManager.IsDelegateType (r)){
MethodInfo method;
ArrayList args = new ArrayList (2);
-
+
args = new ArrayList (2);
args.Add (new Argument (left, Argument.AType.Expression));
args.Add (new Argument (right, Argument.AType.Expression));
-
+
if (oper == Operator.Addition)
method = TypeManager.delegate_combine_delegate_delegate;
else
Error_OperatorCannotBeApplied ();
return null;
}
-
+
return new BinaryDelegate (l, method, args);
}
}
-
+
//
// Pointer arithmetic:
//
return this;
}
- Constant EnumLiftUp (EmitContext ec, Constant left, Constant right)
+ Constant EnumLiftUp (Constant left, Constant right)
{
switch (oper) {
case Operator.BitwiseOr:
// The conversion rules are ignored in enum context but why
if (!ec.InEnumContext && lc != null && rc != null && (TypeManager.IsEnumType (left.Type) || TypeManager.IsEnumType (right.Type))) {
- left = lc = EnumLiftUp (ec, lc, rc);
+ left = lc = EnumLiftUp (lc, rc);
if (lc == null)
return null;
- right = rc = EnumLiftUp (ec, rc, lc);
+ right = rc = EnumLiftUp (rc, lc);
if (rc == null)
return null;
}
//
// Constant folding
//
- if (operand is StringConstant && operands.Count != 0) {
- StringConstant last_operand = operands [operands.Count - 1] as StringConstant;
- if (last_operand != null) {
- operands [operands.Count - 1] = new StringConstant (last_operand.Value + ((StringConstant) operand).Value, last_operand.Location);
- return;
+ StringConstant sc = operand as StringConstant;
+ if (sc != null) {
+// TODO: it will be better to do this silently as an optimalization
+// int i = 0;
+// string s = "" + i;
+// because this code has poor performace
+// if (sc.Value.Length == 0)
+// Report.Warning (-300, 3, Location, "Appending an empty string has no effect. Did you intend to append a space string?");
+
+ if (operands.Count != 0) {
+ StringConstant last_operand = operands [operands.Count - 1] as StringConstant;
+ if (last_operand != null) {
+ operands [operands.Count - 1] = new StringConstant (last_operand.Value + ((StringConstant) operand).Value, last_operand.Location);
+ return;
+ }
}
}
return null;
}
- left_temp = new LocalTemporary (ec, type);
+ left_temp = new LocalTemporary (type);
ArrayList arguments = new ArrayList ();
arguments.Add (new Argument (left_temp, Argument.AType.Expression));
bool is_readonly;
bool prepared;
LocalTemporary temp;
-
+
public LocalVariableReference (Block block, string name, Location l)
{
Block = block;
}
public VariableInfo VariableInfo {
- get {
- return local_info.VariableInfo;
- }
+ get { return local_info.VariableInfo; }
}
public bool IsReadOnly {
- get {
- return is_readonly;
- }
+ get { return is_readonly; }
}
public bool VerifyAssigned (EmitContext ec)
return variable_info == null || variable_info.IsAssigned (ec, loc);
}
- protected Expression DoResolveBase (EmitContext ec, Expression lvalue_right_side)
+ void ResolveLocalInfo ()
{
if (local_info == null) {
local_info = Block.GetLocalInfo (Name);
-
- // is out param
- if (lvalue_right_side == EmptyExpression.OutAccess)
- local_info.Used = true;
-
is_readonly = local_info.ReadOnly;
}
+ }
+ protected Expression DoResolveBase (EmitContext ec)
+ {
type = local_info.VariableType;
- VariableInfo variable_info = local_info.VariableInfo;
- if (lvalue_right_side != null){
- if (is_readonly){
- if (lvalue_right_side is LocalVariableReference || lvalue_right_side == EmptyExpression.OutAccess)
- Report.Error (1657, loc, "Cannot pass `{0}' as a ref or out argument because it is a `{1}'",
- Name, local_info.GetReadOnlyContext ());
- else if (lvalue_right_side == EmptyExpression.LValueMemberAccess)
- Report.Error (1654, loc, "Cannot assign to members of `{0}' because it is a `{1}'",
- Name, local_info.GetReadOnlyContext ());
- else
- Report.Error (1656, loc, "Cannot assign to `{0}' because it is a `{1}'",
- Name, local_info.GetReadOnlyContext ());
- return null;
- }
-
- if (variable_info != null)
- variable_info.SetAssigned (ec);
- }
-
Expression e = Block.GetConstantExpression (Name);
- if (e != null) {
- local_info.Used = true;
- eclass = ExprClass.Value;
+ if (e != null)
return e.Resolve (ec);
- }
if (!VerifyAssigned (ec))
return null;
- if (lvalue_right_side == null)
- local_info.Used = true;
-
if (ec.CurrentAnonymousMethod != null){
//
// If we are referencing a variable from the external block
return this;
}
-
+
public override Expression DoResolve (EmitContext ec)
{
- return DoResolveBase (ec, null);
+ ResolveLocalInfo ();
+ local_info.Used = true;
+ return DoResolveBase (ec);
}
override public Expression DoResolveLValue (EmitContext ec, Expression right_side)
{
- return DoResolveBase (ec, right_side);
+ ResolveLocalInfo ();
+
+ if (is_readonly) {
+ int code;
+ string msg;
+ if (right_side == EmptyExpression.OutAccess) {
+ code = 1657; msg = "Cannot pass `{0}' as a ref or out argument because it is a `{1}'";
+ } else if (right_side == EmptyExpression.LValueMemberAccess) {
+ code = 1654; msg = "Cannot assign to members of `{0}' because it is a `{1}'";
+ } else if (right_side == EmptyExpression.LValueMemberOutAccess) {
+ code = 1655; msg = "Cannot pass members of `{0}' as ref or out arguments because it is a `{1}'";
+ } else {
+ code = 1656; msg = "Cannot assign to `{0}' because it is a `{1}'";
+ }
+ Report.Error (code, loc, msg, Name, local_info.GetReadOnlyContext ());
+ return null;
+ }
+
+ // is out param
+ if (right_side == EmptyExpression.OutAccess)
+ local_info.Used = true;
+
+ if (VariableInfo != null)
+ VariableInfo.SetAssigned (ec);
+
+ return DoResolveBase (ec);
}
public bool VerifyFixed ()
return true;
}
- public override int GetHashCode()
+ public override int GetHashCode ()
{
return Name.GetHashCode ();
}
if (leave_copy){
ec.ig.Emit (OpCodes.Dup);
if (local_info.FieldBuilder != null){
- temp = new LocalTemporary (ec, Type);
+ temp = new LocalTemporary (Type);
temp.Store (ec);
}
}
source.Emit (ec);
if (leave_copy){
ig.Emit (OpCodes.Dup);
- temp = new LocalTemporary (ec, Type);
+ temp = new LocalTemporary (Type);
temp.Store (ec);
}
ig.Emit (OpCodes.Stfld, local_info.FieldBuilder);
ec.CurrentBranching.SetAssigned (vi);
}
- public void SetFieldAssigned (EmitContext ec, string field_name)
+ public void SetFieldAssigned (EmitContext ec, string field_name)
{
if (is_out && ec.DoFlowAnalysis)
ec.CurrentBranching.SetFieldAssigned (vi, field_name);
ec.ig.Emit (OpCodes.Dup);
if (is_ref) {
- temp = new LocalTemporary (ec, type);
+ temp = new LocalTemporary (type);
temp.Store (ec);
}
}
if (is_ref) {
if (leave_copy) {
- temp = new LocalTemporary (ec, type);
+ temp = new LocalTemporary (type);
temp.Store (ec);
}
TypeManager.CSharpName (a.Expr.Type);
}
- public bool ResolveMethodGroup (EmitContext ec, Location loc)
+ public bool ResolveMethodGroup (EmitContext ec)
{
// FIXME: csc doesn't report any error if you try to use `ref' or
// `out' in a delegate creation expression.
return true;
}
-
- void Error_LValueRequired (Location loc)
- {
- Report.Error (1510, loc, "A ref or out argument must be an assignable variable");
- }
public bool Resolve (EmitContext ec, Location loc)
{
bool old_do_flow_analysis = ec.DoFlowAnalysis;
ec.DoFlowAnalysis = true;
- if (ArgType == AType.Ref) {
- ec.InRefOutArgumentResolving = true;
+ // Verify that the argument is readable
+ if (ArgType != AType.Out)
Expr = Expr.Resolve (ec);
- ec.InRefOutArgumentResolving = false;
- if (Expr == null) {
- ec.DoFlowAnalysis = old_do_flow_analysis;
- return false;
- }
- int errors = Report.Errors;
- Expr = Expr.DoResolveLValue (ec, Expr);
- if (Expr == null && errors == Report.Errors)
- Error_LValueRequired (loc);
- } else if (ArgType == AType.Out) {
- int errors = Report.Errors;
- ec.InRefOutArgumentResolving = true;
- Expr = Expr.DoResolveLValue (ec, EmptyExpression.OutAccess);
- ec.InRefOutArgumentResolving = false;
-
- if (Expr == null && errors == Report.Errors)
- Error_LValueRequired (loc);
- }
- else
- Expr = Expr.Resolve (ec);
+ // Verify that the argument is writeable
+ if (Expr != null && (ArgType == AType.Out || ArgType == AType.Ref))
+ Expr = Expr.ResolveLValue (ec, EmptyExpression.OutAccess, loc);
ec.DoFlowAnalysis = old_do_flow_analysis;
- if (Expr == null)
- return false;
-
- if (ArgType == AType.Expression)
- return true;
- else {
- //
- // Catch errors where fields of a MarshalByRefObject are passed as ref or out
- // This is only allowed for `this'
- //
- FieldExpr fe = Expr as FieldExpr;
- if (fe != null && !fe.IsStatic){
- Expression instance = fe.InstanceExpression;
-
- if (instance.GetType () != typeof (This)){
- if (fe.InstanceExpression.Type.IsSubclassOf (TypeManager.mbr_type)){
- Report.SymbolRelatedToPreviousError (fe.InstanceExpression.Type);
- Report.Warning (197, 1, loc,
- "Passing `{0}' as ref or out or taking its address may cause a runtime exception because it is a field of a marshal-by-reference class",
- fe.GetSignatureForError ());
- return false;
- }
- }
- }
- }
-
- return true;
+ return Expr != null;
}
public void Emit (EmitContext ec)
{
- //
- // Ref and Out parameters need to have their addresses taken.
+ if (ArgType != AType.Ref && ArgType != AType.Out) {
+ Expr.Emit (ec);
+ return;
+ }
+
+ AddressOp mode = AddressOp.Store;
+ if (ArgType == AType.Ref)
+ mode |= AddressOp.Load;
+
+ IMemoryLocation ml = (IMemoryLocation) Expr;
+ ParameterReference pr = ml as ParameterReference;
+
//
// ParameterReferences might already be references, so we want
// to pass just the value
//
- if (ArgType == AType.Ref || ArgType == AType.Out){
- AddressOp mode = AddressOp.Store;
-
- if (ArgType == AType.Ref)
- mode |= AddressOp.Load;
-
- if (Expr is ParameterReference){
- ParameterReference pr = (ParameterReference) Expr;
-
- if (pr.IsRef)
- pr.EmitLoad (ec);
- else {
-
- pr.AddressOf (ec, mode);
- }
- } else {
- if (Expr is IMemoryLocation)
- ((IMemoryLocation) Expr).AddressOf (ec, mode);
- else {
- Error_LValueRequired (Expr.Location);
- return;
- }
- }
- } else
- Expr.Emit (ec);
+ if (pr != null && pr.IsRef)
+ pr.EmitLoad (ec);
+ else
+ ml.AddressOf (ec, mode);
}
}
/// q if a->q is better,
/// null if neither is better
/// </summary>
- static Type BetterConversion (EmitContext ec, Argument a, Type p, Type q, Location loc)
+ static Type BetterConversion (EmitContext ec, Argument a, Type p, Type q)
{
Type argument_type = a.Type;
Expression argument_expr = a.Expr;
/// and the current best match
/// </summary>
/// <remarks>
- /// Returns an integer indicating :
+ /// Returns a boolean indicating :
/// false if candidate ain't better
- /// true if candidate is better than the current best match
+ /// true if candidate is better than the current best match
/// </remarks>
static bool BetterFunction (EmitContext ec, ArrayList args, int argument_count,
MethodBase candidate, bool candidate_params,
- MethodBase best, bool best_params, Location loc)
+ MethodBase best, bool best_params)
{
ParameterData candidate_pd = TypeManager.GetParameterData (candidate);
ParameterData best_pd = TypeManager.GetParameterData (best);
continue;
same = false;
- Type better = BetterConversion (ec, a, ct, bt, loc);
+ Type better = BetterConversion (ec, a, ct, bt);
// for each argument, the conversion to 'ct' should be no worse than
// the conversion to 'bt'.
static internal bool IsAncestralType (Type first_type, Type second_type)
{
return first_type != second_type &&
- (second_type.IsSubclassOf (first_type) ||
+ (TypeManager.IsSubclassOf (second_type, first_type) ||
TypeManager.ImplementsInterface (second_type, first_type));
}
///
/// </summary>
public static MethodBase OverloadResolve (EmitContext ec, MethodGroupExpr me,
- ArrayList Arguments, bool may_fail,
+ ArrayList Arguments, bool may_fail,
Location loc)
{
MethodBase method = null;
if (BetterFunction (ec, Arguments, arg_count,
candidate, cand_params,
- method, method_params, loc)) {
+ method, method_params)) {
method = candidate;
method_params = cand_params;
}
bool cand_params = candidate_to_form != null && candidate_to_form.Contains (candidate);
if (!BetterFunction (ec, Arguments, arg_count,
method, method_params,
- candidate, cand_params,
- loc)) {
+ candidate, cand_params)) {
Report.SymbolRelatedToPreviousError (candidate);
ambiguous = candidate;
}
method_params, null, may_fail, loc))
return null;
- if (method != null) {
- IMethodData data = TypeManager.GetMethod (method);
- if (data != null)
- data.SetMemberIsUsed ();
- }
+ if (method == null)
+ return null;
+
+ IMethodData data = TypeManager.GetMethod (method);
+ if (data != null)
+ data.SetMemberIsUsed ();
+
return method;
}
Location loc)
{
ParameterData pd = TypeManager.GetParameterData (method);
- int pd_count = pd.Count;
-
- for (int j = 0; j < arg_count; j++) {
+ int j;
+ for (j = 0; j < arg_count; j++) {
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 ((pm & ~Parameter.Modifier.PARAMS) != a.Modifier) {
- if (!may_fail)
- Error_InvalidArguments (loc, j, method, delegate_type, a, pd);
- return false;
- }
+ Parameter.Modifier am = a.Modifier;
+ if (pm == Parameter.Modifier.ARGLIST) {
+ if (!(a.Expr is Arglist))
+ break;
+ continue;
+ }
+
+ if (pm == Parameter.Modifier.PARAMS) {
+ pm = Parameter.Modifier.NONE;
if (chose_params_expanded)
parameter_type = TypeManager.GetElementType (parameter_type);
- } else if (pm == Parameter.Modifier.ARGLIST) {
- if (!(a.Expr is Arglist)) {
- if (!may_fail)
- Error_InvalidArguments (loc, j, method, delegate_type, a, pd);
- return false;
- }
- continue;
- } else {
- //
- // Check modifiers
- //
- if (pd.ParameterModifier (j) != a.Modifier){
- if (!may_fail)
- Error_InvalidArguments (loc, j, method, delegate_type, a, pd);
- return false;
- }
}
- //
- // Check Type
- //
- if (!a.Type.Equals (parameter_type)){
- Expression conv;
-
- conv = Convert.ImplicitConversion (ec, a_expr, parameter_type, loc);
+ if (pm != am)
+ break;
+
+ if (!a.Type.Equals (parameter_type)) {
+ if (pm == Parameter.Modifier.OUT || pm == Parameter.Modifier.REF)
+ break;
+
+ Expression conv = Convert.ImplicitConversion (ec, a_expr, parameter_type, loc);
+ if (conv == null)
+ break;
- if (conv == null) {
- if (!may_fail)
- Error_InvalidArguments (loc, j, method, delegate_type, a, pd);
- return false;
- }
-
- //
// Update the argument with the implicit conversion
- //
if (a_expr != conv)
a.Expr = conv;
}
- if (parameter_type.IsPointer){
- if (!ec.InUnsafe){
- UnsafeError (loc);
- return false;
- }
- }
-
- Parameter.Modifier a_mod = a.Modifier &
- unchecked (~(Parameter.Modifier.OUT | Parameter.Modifier.REF));
- Parameter.Modifier p_mod = pd.ParameterModifier (j) &
- unchecked (~(Parameter.Modifier.OUT | Parameter.Modifier.REF));
-
- if (a_mod != p_mod &&
- pd.ParameterModifier (pd_count - 1) != Parameter.Modifier.PARAMS) {
- if (!may_fail) {
- Invocation.Error_InvalidArguments (loc, j, method, null, a, pd);
- }
-
+ if (parameter_type.IsPointer && !ec.InUnsafe) {
+ UnsafeError (loc);
return false;
}
}
- return true;
+ if (j == arg_count)
+ return true;
+
+ if (!may_fail)
+ Error_InvalidArguments (loc, j, method, delegate_type, (Argument) Arguments [j], pd);
+ return false;
}
private bool resolved = false;
}
if (mg.InstanceExpression != null)
- mg.InstanceExpression.CheckMarshallByRefAccess (ec.ContainerType);
+ mg.InstanceExpression.CheckMarshalByRefAccess ();
eclass = ExprClass.Value;
this.method = method;
a.Emit (ec);
if (dup_args) {
ec.ig.Emit (OpCodes.Dup);
- (temps [i] = new LocalTemporary (ec, a.Type)).Store (ec);
+ (temps [i] = new LocalTemporary (a.Type)).Store (ec);
}
}
}
}
- static Type[] GetVarargsTypes (EmitContext ec, MethodBase mb,
- ArrayList arguments)
+ static Type[] GetVarargsTypes (MethodBase mb, ArrayList arguments)
{
ParameterData pd = TypeManager.GetParameterData (mb);
if (oa != null)
AttributeTester.Report_ObsoleteMessage (oa, TypeManager.CSharpSignature (method), loc);
-
oa = AttributeTester.GetObsoleteAttribute (method.DeclaringType);
if (oa != null) {
AttributeTester.Report_ObsoleteMessage (oa, method.DeclaringType.FullName, loc);
this_call = instance_expr is This;
if (decl_type.IsValueType || (!this_call && instance_expr.Type.IsValueType))
struct_call = true;
-
+
+ //
+ // If this is ourselves, push "this"
+ //
if (!omit_args) {
Type t = null;
//
// Push the instance expression
//
- if (instance_expr.Type.IsValueType) {
+ if (TypeManager.IsValueType (instance_expr.Type)) {
//
// Special case: calls to a function declared in a
// reference-type with a value-type argument need
((IMemoryLocation)instance_expr).
AddressOf (ec, AddressOp.LoadStore);
} else {
- LocalTemporary temp = new LocalTemporary (ec, instance_expr.Type);
+ LocalTemporary temp = new LocalTemporary (instance_expr.Type);
instance_expr.Emit (ec);
temp.Store (ec);
temp.AddressOf (ec, AddressOp.Load);
if (dup_args) {
ig.Emit (OpCodes.Dup);
if (Arguments != null && Arguments.Count != 0) {
- this_arg = new LocalTemporary (ec, t);
+ this_arg = new LocalTemporary (t);
this_arg.Store (ec);
}
}
call_op = OpCodes.Callvirt;
if ((method.CallingConvention & CallingConventions.VarArgs) != 0) {
- Type[] varargs_types = GetVarargsTypes (ec, method, Arguments);
+ Type[] varargs_types = GetVarargsTypes (method, Arguments);
ig.EmitCall (call_op, (MethodInfo) method, varargs_types);
return;
}
//
bool DoEmit (EmitContext ec, bool need_value_on_stack)
{
- bool is_value_type = type.IsValueType;
+ bool is_value_type = TypeManager.IsValueType (type);
ILGenerator ig = ec.ig;
if (is_value_type){
// We need to create a new LocalTemporary each time since
// you can't share LocalBuilders among ILGeneators.
if (!value_target_set)
- value_target = new LocalTemporary (ec, type);
+ value_target = new LocalTemporary (type);
ml = (IMemoryLocation) value_target;
ml.AddressOf (ec, AddressOp.Store);
}
if (!value_target_set)
- value_target = new LocalTemporary (ec, type);
+ value_target = new LocalTemporary (type);
IMemoryLocation ml = (IMemoryLocation) value_target;
ml.AddressOf (ec, AddressOp.Store);
ArrayList array_data;
- Hashtable bounds;
-
- //
- // The number of array initializers that we can handle
- // via the InitializeArray method - through EmitStaticInitializers
- //
- int num_automatic_initializers;
+ IDictionary bounds;
- const int max_automatic_initializers = 6;
+ // The number of constants in array initializers
+ int const_initializers_count;
public ArrayCreation (Expression requested_base_type, ArrayList exprs, string rank, ArrayList initializers, Location l)
{
Error (178, "Invalid rank specifier: expected `,' or `]'");
}
- public bool CheckIndices (EmitContext ec, ArrayList probe, int idx, bool specified_dims)
+ bool CheckIndices (EmitContext ec, ArrayList probe, int idx, bool specified_dims)
{
if (specified_dims) {
Argument a = (Argument) arguments [idx];
Error_IncorrectArrayInitializer ();
return false;
}
- if (specified_dims && (idx + 1 >= arguments.Count)){
+ if (idx + 1 >= dimensions){
Error (623, "Array initializers can only be used in a variable or field initializer. Try using a new expression instead");
return false;
}
Expression tmp = (Expression) o;
tmp = tmp.Resolve (ec);
- probe [i] = tmp;
if (tmp == null)
return false;
- // Console.WriteLine ("I got: " + tmp);
- // Handle initialization from vars, fields etc.
-
Expression conv = Convert.ImplicitConversionRequired (
ec, tmp, underlying_type, loc);
if (conv == null)
return false;
+
+ // Initializers with the default values can be ignored
+ Constant c = tmp as Constant;
+ if (c != null) {
+ if (c.IsDefaultInitializer (array_element_type)) {
+ conv = null;
+ }
+ else {
+ ++const_initializers_count;
+ }
+ } else {
+ // Used to invalidate static initializer
+ const_initializers_count = int.MinValue;
+ }
- if (conv is StringConstant || conv is DecimalConstant || conv is NullCast) {
- // These are subclasses of Constant that can appear as elements of an
- // array that cannot be statically initialized (with num_automatic_initializers
- // > max_automatic_initializers), so num_automatic_initializers should be left as zero.
- array_data.Add (conv);
- } else if (conv is Constant) {
- // These are the types of Constant that can appear in arrays that can be
- // statically allocated.
- array_data.Add (conv);
- num_automatic_initializers++;
- } else
- array_data.Add (conv);
+ array_data.Add (conv);
}
}
return true;
}
- public void UpdateIndices (EmitContext ec)
+ public void UpdateIndices ()
{
int i = 0;
for (ArrayList probe = initializers; probe != null;) {
arguments.Add (new Argument (e, Argument.AType.Expression));
bounds [i++] = probe.Count;
- probe = null;
+ return;
}
}
}
- public bool ValidateInitializers (EmitContext ec, Type array_type)
+ bool ResolveInitializers (EmitContext ec)
{
if (initializers == null) {
return !expect_initializers;
// will need to store them in the byte blob later
//
array_data = new ArrayList ();
- bounds = new Hashtable ();
+ bounds = new System.Collections.Specialized.HybridDictionary ();
- if (arguments != null) {
+ if (arguments != null)
return CheckIndices (ec, initializers, 0, true);
- } else {
- arguments = new ArrayList ();
- if (!CheckIndices (ec, initializers, 0, false))
- return false;
+ arguments = new ArrayList ();
+
+ if (!CheckIndices (ec, initializers, 0, false))
+ return false;
- UpdateIndices (ec);
+ UpdateIndices ();
- if (arguments.Count != dimensions) {
- Error_IncorrectArrayInitializer ();
- return false;
- }
-
- return true;
+ if (arguments.Count != dimensions) {
+ Error_IncorrectArrayInitializer ();
+ return false;
}
+
+ return true;
}
//
public override Expression DoResolve (EmitContext ec)
{
- int arg_count;
+ if (type != null)
+ return this;
if (!LookupType (ec))
return null;
+ array_element_type = TypeManager.GetElementType (type);
+ if (array_element_type.IsAbstract && array_element_type.IsSealed) {
+ Report.Error (719, loc, "`{0}': array elements cannot be of static type", TypeManager.CSharpName (array_element_type));
+ return null;
+ }
+
//
// First step is to validate the initializers and fill
// in any missing bits
//
- if (!ValidateInitializers (ec, type))
+ if (!ResolveInitializers (ec))
return null;
+ int arg_count;
if (arguments == null)
arg_count = 0;
else {
}
}
- array_element_type = TypeManager.GetElementType (type);
-
- if (array_element_type.IsAbstract && array_element_type.IsSealed) {
- Report.Error (719, loc, "`{0}': array elements cannot be of static type", TypeManager.CSharpName (array_element_type));
- return null;
- }
-
if (arg_count == 1) {
is_one_dimensional = true;
eclass = ExprClass.Value;
}
}
- public static byte [] MakeByteBlob (ArrayList array_data, Type underlying_type, Location loc)
+ byte [] MakeByteBlob ()
{
int factor;
byte [] data;
data = new byte [(count * factor + 4) & ~3];
int idx = 0;
-
+
for (int i = 0; i < count; ++i) {
object v = array_data [i];
FieldBuilder fb;
ILGenerator ig = ec.ig;
- byte [] data = MakeByteBlob (array_data, underlying_type, loc);
+ byte [] data = MakeByteBlob ();
fb = RootContext.MakeStaticData (data);
ILGenerator ig = ec.ig;
int dims = bounds.Count;
int [] current_pos = new int [dims];
- int top = array_data.Count;
MethodInfo set = null;
if (dims != 1){
- Type [] args;
- ModuleBuilder mb = null;
- mb = CodeGen.Module.Builder;
- args = new Type [dims + 1];
+ Type [] args = new Type [dims + 1];
- int j;
- for (j = 0; j < dims; j++)
+ for (int j = 0; j < dims; j++)
args [j] = TypeManager.int32_type;
-
- args [j] = array_element_type;
+ args [dims] = array_element_type;
- set = mb.GetArrayMethod (
+ set = CodeGen.Module.Builder.GetArrayMethod (
type, "Set",
CallingConventions.HasThis | CallingConventions.Standard,
TypeManager.void_type, args);
}
-
- for (int i = 0; i < top; i++){
- Expression e = null;
+ for (int i = 0; i < array_data.Count; i++){
- if (array_data [i] is Expression)
- e = (Expression) array_data [i];
+ Expression e = (Expression)array_data [i];
if (e != null) {
- //
- // Basically we do this for string literals and
- // other non-literal expressions
- //
- if (e is EnumConstant){
- e = ((EnumConstant) e).Child;
- }
-
- if (e is StringConstant || e is DecimalConstant || !(e is Constant) ||
- num_automatic_initializers <= max_automatic_initializers) {
- Type etype = e.Type;
+ Type etype = e.Type;
- ig.Emit (OpCodes.Dup);
+ ig.Emit (OpCodes.Dup);
- for (int idx = 0; idx < dims; idx++)
- IntConstant.EmitInt (ig, current_pos [idx]);
+ for (int idx = 0; idx < dims; idx++)
+ IntConstant.EmitInt (ig, current_pos [idx]);
- //
- // If we are dealing with a struct, get the
- // address of it, so we can store it.
- //
- if ((dims == 1) &&
- TypeManager.IsValueType (etype) &&
- (!TypeManager.IsBuiltinOrEnum (etype) ||
- etype == TypeManager.decimal_type)) {
- if (e is New){
- New n = (New) e;
-
- //
- // Let new know that we are providing
- // the address where to store the results
- //
- n.DisableTemporaryValueType ();
- }
+ //
+ // If we are dealing with a struct, get the
+ // address of it, so we can store it.
+ //
+ if ((dims == 1) &&
+ TypeManager.IsValueType (etype) &&
+ (!TypeManager.IsBuiltinOrEnum (etype) ||
+ etype == TypeManager.decimal_type)) {
+ if (e is New){
+ New n = (New) e;
- ig.Emit (OpCodes.Ldelema, etype);
+ //
+ // Let new know that we are providing
+ // the address where to store the results
+ //
+ n.DisableTemporaryValueType ();
}
- e.Emit (ec);
+ ig.Emit (OpCodes.Ldelema, etype);
+ }
+
+ e.Emit (ec);
- if (dims == 1) {
- bool is_stobj;
- OpCode op = ArrayAccess.GetStoreOpcode (etype, out is_stobj);
- if (is_stobj)
- ig.Emit (OpCodes.Stobj, etype);
- else
- ig.Emit (op);
- } else
- ig.Emit (OpCodes.Call, set);
+ if (dims == 1) {
+ bool is_stobj;
+ OpCode op = ArrayAccess.GetStoreOpcode (etype, out is_stobj);
+ if (is_stobj)
+ ig.Emit (OpCodes.Stobj, etype);
+ else
+ ig.Emit (op);
+ } else
+ ig.Emit (OpCodes.Call, set);
- }
}
//
ig.Emit (OpCodes.Newobj, (MethodInfo) new_method);
}
- if (initializers != null){
- //
- // FIXME: Set this variable correctly.
- //
- bool dynamic_initializers = true;
+ if (initializers == null)
+ return;
- // This will never be true for array types that cannot be statically
- // initialized. num_automatic_initializers will always be zero. See
- // CheckIndices.
- if (num_automatic_initializers > max_automatic_initializers)
- EmitStaticInitializers (ec);
-
- if (dynamic_initializers)
- EmitDynamicInitializers (ec);
+ // This is a treshold for static initializers
+ // I tried to make more accurate but it seems to me that Array.Initialize is
+ // always slower (managed -> unmanaged switch?)
+ const int max_automatic_initializers = 200;
+
+ if (const_initializers_count > max_automatic_initializers && TypeManager.IsPrimitiveType (array_element_type)) {
+ EmitStaticInitializers (ec);
+ return;
}
+
+ EmitDynamicInitializers (ec);
}
- public override bool GetAttributableValue (out object value)
+ public override bool GetAttributableValue (Type valueType, out object value)
{
if (!is_one_dimensional){
// Report.Error (-211, Location, "attribute can not encode multi-dimensional arrays");
- return base.GetAttributableValue (out value);
+ return base.GetAttributableValue (null, out value);
}
if (array_data == null) {
Constant c = (Constant)((Argument)arguments [0]).Expr;
if (c.IsDefaultValue) {
- value = new object [0];
+ value = Array.CreateInstance (array_element_type, 0);
return true;
}
// Report.Error (-212, Location, "array should be initialized when passing it to an attribute");
- return base.GetAttributableValue (out value);
+ return base.GetAttributableValue (null, out value);
}
- object [] ret = new object [array_data.Count];
+ Array ret = Array.CreateInstance (array_element_type, array_data.Count);
+ object element_value;
for (int i = 0; i < ret.Length; ++i)
{
- if (!((Expression)array_data [i]).GetAttributableValue (out ret [i])) {
+ Expression e = (Expression)array_data [i];
+ if (e == null) // Is null when initializer is optimized away
+ e = (Expression)initializers [i];
+
+ if (!e.GetAttributableValue (array_element_type, out element_value)) {
value = null;
return false;
}
+ ret.SetValue (element_value, i);
}
value = ret;
return true;
}
}
+ public sealed class CompilerGeneratedThis : This
+ {
+ public static This Instance = new CompilerGeneratedThis ();
+
+ private CompilerGeneratedThis ()
+ : base (Location.Null)
+ {
+ }
+
+ public override Expression DoResolve (EmitContext ec)
+ {
+ eclass = ExprClass.Variable;
+ type = ec.ContainerType;
+ return this;
+ }
+ }
+
/// <summary>
/// Represents the `this' construct
/// </summary>
LocalTemporary t = null;
if (leave_copy) {
- t = new LocalTemporary (ec, type);
+ t = new LocalTemporary (type);
ec.ig.Emit (OpCodes.Dup);
t.Store (ec);
}
this.loc = loc;
}
- public bool ResolveBase (EmitContext ec)
+ public override Expression DoResolve (EmitContext ec)
{
eclass = ExprClass.Variable;
type = TypeManager.runtime_argument_handle_type;
- return true;
- }
- public override Expression DoResolve (EmitContext ec)
- {
- if (!ResolveBase (ec))
- return null;
-
- if (ec.IsFieldInitializer || !ec.CurrentBlock.Toplevel.HasVarargs) {
+ if (ec.IsFieldInitializer || !ec.CurrentBlock.Toplevel.HasVarargs)
+ {
Error (190, "The __arglist construct is valid only within " +
"a variable argument method.");
return null;
ec.ig.Emit (OpCodes.Call, TypeManager.system_type_get_type_from_handle);
}
- public override bool GetAttributableValue (out object value)
+ public override bool GetAttributableValue (Type valueType, out object value)
{
+ if (valueType == TypeManager.object_type) {
+ value = (object)typearg;
+ return true;
+ }
value = typearg;
return true;
}
public override FullNamedExpression ResolveAsTypeStep (IResolveContext ec, bool silent)
{
if (alias == "global")
- return new MemberAccess (RootNamespace.Global, identifier, loc).ResolveAsTypeStep (ec, silent);
+ return new MemberAccess (RootNamespace.Global, identifier).ResolveAsTypeStep (ec, silent);
int errors = Report.Errors;
FullNamedExpression fne = ec.DeclContainer.NamespaceEntry.LookupAlias (alias);
Report.Error (431, loc, "`{0}' cannot be used with '::' since it denotes a type", alias);
return null;
}
- return new MemberAccess (fne, identifier, loc).ResolveAsTypeStep (ec, silent);
+ return new MemberAccess (fne, identifier).ResolveAsTypeStep (ec, silent);
}
public override Expression DoResolve (EmitContext ec)
}
}
- Expression retval = new MemberAccess (fne, identifier, loc).DoResolve (ec);
+ Expression retval = new MemberAccess (fne, identifier).DoResolve (ec);
if (retval == null)
return null;
public readonly string Identifier;
Expression expr;
- // TODO: Location can be removed
- public MemberAccess (Expression expr, string id, Location l)
+ public MemberAccess (Expression expr, string id)
{
this.expr = expr;
Identifier = id;
if (leave_copy) {
ec.ig.Emit (OpCodes.Dup);
- temp = new LocalTemporary (ec, this.type);
+ temp = new LocalTemporary (this.type);
temp.Store (ec);
}
}
source.Emit (ec);
if (leave_copy) {
ec.ig.Emit (OpCodes.Dup);
- temp = new LocalTemporary (ec, this.type);
+ temp = new LocalTemporary (this.type);
temp.Store (ec);
}
StoreFromPtr (ec.ig, t);
source.Emit (ec);
if (leave_copy) {
ec.ig.Emit (OpCodes.Dup);
- temp = new LocalTemporary (ec, this.type);
+ temp = new LocalTemporary (this.type);
temp.Store (ec);
}
source.Emit (ec);
if (leave_copy) {
ec.ig.Emit (OpCodes.Dup);
- temp = new LocalTemporary (ec, this.type);
+ temp = new LocalTemporary (this.type);
temp.Store (ec);
}
BindingFlags.DeclaredOnly, p_name, null);
}
- static public Indexers GetIndexersForType (Type caller_type, Type lookup_type, Location loc)
+ static public Indexers GetIndexersForType (Type caller_type, Type lookup_type)
{
Indexers ix = empty;
bool found_any = false, found_any_getters = false;
Type lookup_type = indexer_type;
- Indexers ilist = Indexers.GetIndexersForType (current_type, lookup_type, loc);
+ Indexers ilist = Indexers.GetIndexersForType (current_type, lookup_type);
if (ilist.Properties != null) {
found_any = true;
foreach (Indexers.Indexer ix in ilist.Properties) {
return null;
}
- instance_expr.CheckMarshallByRefAccess (ec.ContainerType);
+ instance_expr.CheckMarshalByRefAccess ();
eclass = ExprClass.IndexerAccess;
return this;
}
// if the indexer returns a value type, and we try to set a field in it
- if (right_side == EmptyExpression.LValueMemberAccess) {
+ if (right_side == EmptyExpression.LValueMemberAccess || right_side == EmptyExpression.LValueMemberOutAccess) {
Report.Error (1612, loc, "Cannot modify the return value of `{0}' because it is not a variable",
GetSignatureForError ());
return null;
bool found_any = false, found_any_setters = false;
- Indexers ilist = Indexers.GetIndexersForType (current_type, indexer_type, loc);
+ Indexers ilist = Indexers.GetIndexersForType (current_type, indexer_type);
if (ilist.Properties != null) {
found_any = true;
foreach (Indexers.Indexer ix in ilist.Properties) {
}
}
- instance_expr.CheckMarshallByRefAccess (ec.ContainerType);
+ instance_expr.CheckMarshalByRefAccess ();
eclass = ExprClass.IndexerAccess;
return this;
Invocation.EmitCall (ec, is_base_indexer, false, instance_expr, get, arguments, loc, prepared, false);
if (leave_copy) {
ec.ig.Emit (OpCodes.Dup);
- temp = new LocalTemporary (ec, Type);
+ temp = new LocalTemporary (Type);
temp.Store (ec);
}
}
source.Emit (ec);
if (leave_copy) {
ec.ig.Emit (OpCodes.Dup);
- temp = new LocalTemporary (ec, Type);
+ temp = new LocalTemporary (Type);
temp.Store (ec);
}
} else if (leave_copy) {
- temp = new LocalTemporary (ec, Type);
+ temp = new LocalTemporary (Type);
source.Emit (ec);
temp.Store (ec);
a.Expr = temp;
public static readonly EmptyExpression OutAccess = new EmptyExpression ();
public static readonly EmptyExpression LValueMemberAccess = new EmptyExpression ();
+ public static readonly EmptyExpression LValueMemberOutAccess = new EmptyExpression ();
static EmptyExpression temp = new EmptyExpression ();
public static EmptyExpression Grab ()
loc = l;
}
- public override TypeExpr DoResolveAsTypeStep (IResolveContext ec)
+ protected override TypeExpr DoResolveAsTypeStep (IResolveContext ec)
{
TypeExpr lexpr = left.ResolveAsTypeTerminal (ec, false);
if (lexpr == null)
projects / mono.git / blobdiff