//
#define USE_OLD
-namespace Mono.CSharp {
+namespace Mono.MonoBASIC {
using System;
using System.Collections;
using System.Reflection;
{
Error (
23, "Operator " + OperName (Oper) +
- " cannot be applied to operand of type `" +
- TypeManager.CSharpName (t) + "'");
+ " cannot be applied to operand of type '" +
+ TypeManager.MonoBASIC_Name (t) + "'");
}
/// <remarks>
// <summary>
// This routine will attempt to simplify the unary expression when the
- // argument is a constant. The result is returned in `result' and the
+ // argument is a constant. The result is returned in 'result' and the
// function returns true or false depending on whether a reduction
// was performed or not
// </summary>
if (expr_type == TypeManager.uint64_type){
//
- // FIXME: Handle exception of `long value'
+ // FIXME: Handle exception of 'long value'
// -92233720368547758087 (-2^63) to be wrote as
// decimal integer literal.
//
}
Error (187, "No such operator '" + OperName (Oper) + "' defined for type '" +
- TypeManager.CSharpName (expr_type) + "'");
+ TypeManager.MonoBASIC_Name (expr_type) + "'");
return null;
}
}
/// <summary>
- /// This will emit the child expression for `ec' avoiding the logical
+ /// This will emit the child expression for 'ec' avoiding the logical
/// not. The parent will take care of changing brfalse/brtrue
/// </summary>
public void EmitLogicalNot (EmitContext ec)
/// classes (indexers require temporary access; overloaded require method)
///
/// Maybe we should have classes PreIncrement, PostIncrement, PreDecrement,
- /// PostDecrement, that way we could save the `Mode' byte as well.
+ /// PostDecrement, that way we could save the 'Mode' byte as well.
/// </remarks>
public class UnaryMutator : ExpressionStatement {
public enum Mode : byte {
{
Error (
23, "Operator " + OperName (mode) +
- " cannot be applied to operand of type `" +
- TypeManager.CSharpName (t) + "'");
+ " cannot be applied to operand of type '" +
+ TypeManager.MonoBASIC_Name (t) + "'");
}
/// <summary>
- /// Returns whether an object of type `t' can be incremented
+ /// Returns whether an object of type 't' can be incremented
/// or decremented with add/sub (ie, basically whether we can
/// use pre-post incr-decr operations on it, but it is not a
/// System.Decimal, which we require operator overloading to catch)
}
Error (187, "No such operator '" + OperName (mode) + "' defined for type '" +
- TypeManager.CSharpName (expr_type) + "'");
+ TypeManager.MonoBASIC_Name (expr_type) + "'");
return null;
}
}
/// <summary>
- /// Base class for the `Is' and `As' classes.
+ /// Base class for the 'Is' and 'As' classes.
/// </summary>
///
/// <remarks>
- /// FIXME: Split this in two, and we get to save the `Operator' Oper
+ /// FIXME: Split this in two, and we get to save the 'Operator' Oper
/// size.
/// </remarks>
public abstract class Probe : Expression {
}
/// <summary>
- /// Implementation of the `is' operator.
+ /// Implementation of the 'is' operator.
/// </summary>
public class Is : Probe {
public Is (Expression expr, Expression probe_type, Location l)
IntConstant.EmitInt (ig, 1);
return;
case Action.LeaveOnStack:
- // the `e != null' rule.
+ // the 'e != null' rule.
return;
case Action.Probe:
ig.Emit (OpCodes.Isinst, probe_type);
if (warning_always_matches)
Warning (
183,
- "The expression is always of type `" +
- TypeManager.CSharpName (probe_type) + "'");
+ "The expression is always of type '" +
+ TypeManager.MonoBASIC_Name (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) + "'");
+ "The expression is never of type '" +
+ TypeManager.MonoBASIC_Name (probe_type) + "'");
}
}
}
/// <summary>
- /// Implementation of the `as' operator.
+ /// Implementation of the 'as' operator.
/// </summary>
public class As : Probe {
public As (Expression expr, Expression probe_type, Location l)
static void Error_CannotConvertType (Type source, Type target, Location loc)
{
Report.Error (
- 39, loc, "as operator can not convert from `" +
- TypeManager.CSharpName (source) + "' to `" +
- TypeManager.CSharpName (target) + "'");
+ 39, loc, "as operator can not convert from '" +
+ TypeManager.MonoBASIC_Name (source) + "' to '" +
+ TypeManager.MonoBASIC_Name (target) + "'");
}
public override Expression DoResolve (EmitContext ec)
type = probe_type;
eclass = ExprClass.Value;
Type etype = expr.Type;
+
+ if (TypeManager.IsValueType (probe_type)){
+ Report.Error (77, loc, "The as operator should be used with a reference type only (" +
+ TypeManager.MonoBASIC_Name (probe_type) + " is a value type)");
+ return null;
+
+ }
e = ConvertImplicit (ec, expr, probe_type, loc);
if (e != null){
return new DoubleConstant ((double) v);
if (target_type == TypeManager.char_type)
return new CharConstant ((char) v);
+ if (target_type == TypeManager.decimal_type)
+ return new DecimalConstant ((decimal) v);
}
if (expr is SByteConstant){
sbyte v = ((SByteConstant) expr).Value;
return new DoubleConstant ((double) v);
if (target_type == TypeManager.char_type)
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;
return new DoubleConstant ((double) v);
if (target_type == TypeManager.char_type)
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;
return new DoubleConstant ((double) v);
if (target_type == TypeManager.char_type)
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;
return new DoubleConstant ((double) v);
if (target_type == TypeManager.char_type)
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;
return new DoubleConstant ((double) v);
if (target_type == TypeManager.char_type)
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;
return new DoubleConstant ((double) v);
if (target_type == TypeManager.char_type)
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;
return new DoubleConstant ((double) v);
if (target_type == TypeManager.char_type)
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;
return new DoubleConstant ((double) v);
if (target_type == TypeManager.char_type)
return new CharConstant ((char) v);
+ if (target_type == TypeManager.decimal_type)
+ return new DecimalConstant ((decimal) v);
}
if (expr is DoubleConstant){
double v = ((DoubleConstant) expr).Value;
return new FloatConstant ((float) v);
if (target_type == TypeManager.char_type)
return new CharConstant ((char) v);
+ if (target_type == TypeManager.decimal_type)
+ return new DecimalConstant ((decimal) v);
}
return null;
int errors = Report.Errors;
- target_type = target_type.Resolve (ec, ResolveFlags.Type);
+ type = ec.DeclSpace.ResolveType (target_type, false, Location);
- if (target_type == null){
- if (errors == Report.Errors)
- Error (-10, "Can not resolve type");
+ if (type == null)
return null;
- }
- type = target_type.Type;
eclass = ExprClass.Value;
- if (type == null)
- return null;
-
if (expr is Constant){
Expression e = TryReduce (ec, type);
if (expr.Type == target_type)
return expr;
- return ConvertImplicit (ec, expr, target_type, new Location (-1));
+ return ConvertImplicit (ec, expr, target_type, Location.Null);
}
public static void Error_OperatorAmbiguous (Location loc, Operator oper, Type l, Type r)
{
Report.Error (
- 34, loc, "Operator `" + OperName (oper)
- + "' is ambiguous on operands of type `"
- + TypeManager.CSharpName (l) + "' "
- + "and `" + TypeManager.CSharpName (r)
+ 34, loc, "Operator '" + OperName (oper)
+ + "' is ambiguous on operands of type '"
+ + TypeManager.MonoBASIC_Name (l) + "' "
+ + "and '" + TypeManager.MonoBASIC_Name (r)
+ "'");
}
left = ConvertImplicit (ec, left, TypeManager.int64_type, loc);
if (r != TypeManager.int64_type)
right = ConvertImplicit (ec, right, TypeManager.int64_type, loc);
-
+
type = TypeManager.int64_type;
} else if (l == TypeManager.uint32_type || r == TypeManager.uint32_type){
//
} else if (l == TypeManager.decimal_type || r == TypeManager.decimal_type){
if (l != TypeManager.decimal_type)
left = ConvertImplicit (ec, left, TypeManager.decimal_type, loc);
+
if (r != TypeManager.decimal_type)
right = ConvertImplicit (ec, right, TypeManager.decimal_type, loc);
-
type = TypeManager.decimal_type;
} else {
- Expression l_tmp, r_tmp;
+ left = ForceConversion (ec, left, TypeManager.int32_type);
+ right = ForceConversion (ec, right, TypeManager.int32_type);
- l_tmp = ForceConversion (ec, left, TypeManager.int32_type);
- if (l_tmp == null)
- return false;
-
- r_tmp = ForceConversion (ec, right, TypeManager.int32_type);
- if (r_tmp == null)
- return false;
-
- left = l_tmp;
- right = r_tmp;
-
type = TypeManager.int32_type;
}
- return true;
+ return (left != null) && (right != null);
}
static public void Error_OperatorCannotBeApplied (Location loc, string name, Type l, Type r)
{
Report.Error (19, loc,
- "Operator " + name + " cannot be applied to operands of type `" +
- TypeManager.CSharpName (l) + "' and `" +
- TypeManager.CSharpName (r) + "'");
+ "Operator " + name + " cannot be applied to operands of type '" +
+ TypeManager.MonoBASIC_Name (l) + "' and '" +
+ TypeManager.MonoBASIC_Name (r) + "'");
}
void Error_OperatorCannotBeApplied ()
method = TypeManager.string_concat_object_object;
right = ConvertImplicit (ec, right,
TypeManager.object_type, loc);
+ if (right == null){
+ Error_OperatorCannotBeApplied (loc, OperName (oper), l, r);
+ return null;
+ }
}
type = TypeManager.string_type;
method = TypeManager.string_concat_object_object;
left = ConvertImplicit (ec, left, TypeManager.object_type, loc);
+ if (left == null){
+ Error_OperatorCannotBeApplied (loc, OperName (oper), l, r);
+ return null;
+ }
Arguments = new ArrayList ();
Arguments.Add (new Argument (left, Argument.AType.Expression));
Arguments.Add (new Argument (right, Argument.AType.Expression));
if (lie || rie){
Expression temp;
+ // U operator - (E e, E f)
+ if (lie && rie && oper == Operator.Subtraction){
+ if (l == r){
+ type = TypeManager.EnumToUnderlying (l);
+ return this;
+ }
+ Error_OperatorCannotBeApplied ();
+ return null;
+ }
+
//
// operator + (E e, U x)
+ // operator - (E e, U x)
//
- if (oper == Operator.Addition){
- if (lie && rie){
- Error_OperatorCannotBeApplied ();
- return null;
- }
-
+ if (oper == Operator.Addition || oper == Operator.Subtraction){
Type enum_type = lie ? l : r;
Type other_type = lie ? r : l;
Type underlying_type = TypeManager.EnumToUnderlying (enum_type);
return null;
}
- if (!DoNumericPromotions (ec, l, r)){
- Error_OperatorCannotBeApplied ();
+ //
+ // This will leave left or right set to null if there is an error
+ //
+ DoNumericPromotions (ec, l, r);
+ if (left == null || right == null){
+ Error_OperatorCannotBeApplied (loc, OperName (oper), l, r);
return null;
}
- if (left == null || right == null)
- return null;
-
//
// reload our cached types if required
//
/// context of a conditional bool expression. This function will return
/// false if it is was possible to use EmitBranchable, or true if it was.
///
- /// The expression's code is generated, and we will generate a branch to `target'
+ /// The expression's code is generated, and we will generate a branch to 'target'
/// if the resulting expression value is equal to isTrue
/// </remarks>
public bool EmitBranchable (EmitContext ec, Label target, bool onTrue)
bool is_add;
//
- // We assume that `l' is always a pointer
+ // We assume that 'l' is always a pointer
//
public PointerArithmetic (bool is_addition, Expression l, Expression r, Type t,
Location loc)
{
expr = expr.Resolve (ec);
+ if (expr == null)
+ return null;
+
if (expr.Type != TypeManager.bool_type)
expr = Expression.ConvertImplicitRequired (
ec, expr, TypeManager.bool_type, loc);
trueExpr = trueExpr.Resolve (ec);
falseExpr = falseExpr.Resolve (ec);
- if (expr == null || trueExpr == null || falseExpr == null)
+ if (trueExpr == null || falseExpr == null)
return null;
eclass = ExprClass.Value;
if (ConvertImplicit (ec, falseExpr, true_type, loc) != null){
Error (172,
"Can not compute type of conditional expression " +
- "as `" + TypeManager.CSharpName (trueExpr.Type) +
- "' and `" + TypeManager.CSharpName (falseExpr.Type) +
+ "as '" + TypeManager.MonoBASIC_Name (trueExpr.Type) +
+ "' and '" + TypeManager.MonoBASIC_Name (falseExpr.Type) +
"' convert implicitly to each other");
return null;
}
} else {
Error (173, "The type of the conditional expression can " +
"not be computed because there is no implicit conversion" +
- " from `" + TypeManager.CSharpName (trueExpr.Type) + "'" +
- " and `" + TypeManager.CSharpName (falseExpr.Type) + "'");
+ " from '" + TypeManager.MonoBASIC_Name (trueExpr.Type) + "'" +
+ " and '" + TypeManager.MonoBASIC_Name (falseExpr.Type) + "'");
return null;
}
}
Label false_target = ig.DefineLabel ();
Label end_target = ig.DefineLabel ();
- expr.Emit (ec);
- ig.Emit (OpCodes.Brfalse, false_target);
+ Statement.EmitBoolExpression (ec, expr, false_target, false);
trueExpr.Emit (ec);
ig.Emit (OpCodes.Br, end_target);
ig.MarkLabel (false_target);
eclass = ExprClass.Variable;
}
- // Setting `is_readonly' to false will allow you to create a writable
+ // 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)
return null;
if (is_readonly){
- Error (1604, "cannot assign to `" + Name + "' because it is readonly");
+ Error (1604, "cannot assign to '" + Name + "' because it is readonly");
return null;
}
if (!ec.CurrentBranching.IsParameterAssigned (idx)) {
Report.Error (165, loc,
- "Use of unassigned local variable `" + name + "'");
+ "Use of unassigned local variable '" + name + "'");
return false;
}
if (!ec.CurrentBranching.IsParameterAssigned (idx, field_name)) {
Report.Error (170, loc,
- "Use of possibly unassigned field `" + field_name + "'");
+ "Use of possibly unassigned field '" + field_name + "'");
return false;
}
}
}
- /// <summary>
- /// Used for arguments to New(), Invocation()
- /// </summary>
- public class Argument {
- public enum AType : byte {
- Expression,
- Ref,
- Out
- };
-
- public readonly AType ArgType;
- public Expression Expr;
-
- public Argument (Expression expr, AType type)
- {
- this.Expr = expr;
- this.ArgType = type;
- }
-
- public Type Type {
- get {
- if (ArgType == AType.Ref || ArgType == AType.Out)
- return TypeManager.LookupType (Expr.Type.ToString () + "&");
- else
- return Expr.Type;
- }
- }
-
- public Parameter.Modifier GetParameterModifier ()
- {
- switch (ArgType) {
- case AType.Out:
- return Parameter.Modifier.OUT | Parameter.Modifier.ISBYREF;
-
- case AType.Ref:
- return Parameter.Modifier.REF | Parameter.Modifier.ISBYREF;
-
- default:
- return Parameter.Modifier.NONE;
- }
- }
-
- public static string FullDesc (Argument a)
- {
- return (a.ArgType == AType.Ref ? "ref " :
- (a.ArgType == AType.Out ? "out " : "")) +
- TypeManager.CSharpName (a.Expr.Type);
- }
-
- public bool ResolveMethodGroup (EmitContext ec, Location loc)
- {
- // FIXME: csc doesn't report any error if you try to use `ref' or
- // `out' in a delegate creation expression.
- Expr = Expr.Resolve (ec, ResolveFlags.VariableOrValue | ResolveFlags.MethodGroup);
- if (Expr == null)
- return false;
-
- return true;
- }
-
- public bool Resolve (EmitContext ec, Location loc)
- {
- if (ArgType == AType.Ref) {
- Expr = Expr.Resolve (ec);
- if (Expr == null)
- return false;
-
- Expr = Expr.ResolveLValue (ec, Expr);
- } else if (ArgType == AType.Out)
- Expr = Expr.ResolveLValue (ec, new EmptyExpression ());
- else
- Expr = Expr.Resolve (ec);
-
- if (Expr == null)
- return false;
-
- if (ArgType == AType.Expression)
- return true;
-
- if (Expr.eclass != ExprClass.Variable){
- //
- // We just probe to match the CSC output
- //
- if (Expr.eclass == ExprClass.PropertyAccess ||
- Expr.eclass == ExprClass.IndexerAccess){
- Report.Error (
- 206, loc,
- "A property or indexer can not be passed as an out or ref " +
- "parameter");
- } else {
- Report.Error (
- 1510, loc,
- "An lvalue is required as an argument to out or ref");
- }
- return false;
- }
-
- return true;
- }
-
- public void Emit (EmitContext ec)
- {
- //
- // Ref and Out parameters need to have their addresses taken.
- //
- // 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.is_ref)
- pr.EmitLoad (ec);
- else {
-
- pr.AddressOf (ec, mode);
- }
- } else
- ((IMemoryLocation)Expr).AddressOf (ec, mode);
- } else
- Expr.Emit (ec);
- }
- }
-
+
/// <summary>
/// Invocation of methods or delegates.
/// </summary>
public class Invocation : ExpressionStatement {
- public readonly ArrayList Arguments;
+ public ArrayList Arguments;
- Expression expr;
+ public Expression expr;
MethodBase method = null;
bool is_base;
-
+ bool is_left_hand; // Needed for late bound calls
static Hashtable method_parameter_cache;
+ static MemberFilter CompareName;
static Invocation ()
{
this.expr = expr;
Arguments = arguments;
loc = l;
+ CompareName = new MemberFilter (compare_name_filter);
}
public Expression Expr {
/// <summary>
/// Returns the Parameters (a ParameterData interface) for the
- /// Method `mb'
+ /// Method 'mb'
/// </summary>
public static ParameterData GetParameterData (MethodBase mb)
{
if (argument_type == null)
throw new Exception ("Expression of type " + a.Expr + " does not resolve its type");
+ //
+ // This is a special case since csc behaves this way. I can't find
+ // it anywhere in the spec but oh well ...
+ //
+ if (argument_expr is NullLiteral && p == TypeManager.string_type && q == TypeManager.object_type)
+ return 1;
+ else if (argument_expr is NullLiteral && p == TypeManager.object_type && q == TypeManager.string_type)
+ return 0;
+
if (p == q)
return 0;
// An implicit constant expression conversion permits the following
// conversions:
//
- // * A constant-expression of type `int' can be converted to type
+ // * A constant-expression of type 'int' can be converted to type
// sbyte, byute, short, ushort, uint, ulong provided the value of
// of the expression is withing the range of the destination type.
//
string ret_type = "";
if (mb is MethodInfo)
- ret_type = TypeManager.CSharpName (((MethodInfo) mb).ReturnType);
+ ret_type = TypeManager.MonoBASIC_Name (((MethodInfo) mb).ReturnType) + " ";
- StringBuilder sb = new StringBuilder (ret_type + " " + mb.Name);
+ StringBuilder sb = new StringBuilder (ret_type + mb.Name);
ParameterData pd = GetParameterData (mb);
int count = pd.Count;
return true;
}
+ static bool CheckParameterAgainstArgument (EmitContext ec, ParameterData pd, int i, Argument a, Type ptype)
+ {
+ Parameter.Modifier a_mod = a.GetParameterModifier () &
+ ~(Parameter.Modifier.OUT | Parameter.Modifier.REF);
+ Parameter.Modifier p_mod = pd.ParameterModifier (i) &
+ ~(Parameter.Modifier.OUT | Parameter.Modifier.REF);
+
+ 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, ptype) || RuntimeConversionExists (ec, a.Expr, ptype)) )
+ return false;
+
+ if ((a_mod & Parameter.Modifier.ISBYREF) != 0) {
+ Type pt = pd.ParameterType (i);
+
+ if (!pt.IsByRef)
+ pt = TypeManager.LookupType (pt.FullName + "&");
+
+ if (pt != a.Type)
+ return false;
+ }
+ } else
+ return false;
+ return true;
+ }
+
/// <summary>
/// Determines if the candidate method is applicable (section 14.4.2.1)
/// to the given set of arguments
/// </summary>
- static bool IsApplicable (EmitContext ec, ArrayList arguments, MethodBase candidate)
+ static bool IsApplicable (EmitContext ec, ref ArrayList arguments, MethodBase candidate)
{
- int arg_count;
-
+ int arg_count, ps_count, po_count;
+ Type param_type;
+
if (arguments == null)
arg_count = 0;
else
arg_count = arguments.Count;
ParameterData pd = GetParameterData (candidate);
-
- int pd_count = pd.Count;
-
- if (arg_count != pd.Count)
- return false;
+ Parameters ps = GetFullParameters (candidate);
- for (int i = arg_count; i > 0; ) {
- i--;
-
- Argument a = (Argument) arguments [i];
-
- Parameter.Modifier a_mod = a.GetParameterModifier () &
- ~(Parameter.Modifier.OUT | Parameter.Modifier.REF);
- Parameter.Modifier p_mod = pd.ParameterModifier (i) &
- ~(Parameter.Modifier.OUT | Parameter.Modifier.REF);
+ if (ps == null) {
+ ps_count = 0;
+ po_count = 0;
+ }
+ else
+ {
+ ps_count = ps.CountStandardParams();
+ po_count = ps.CountOptionalParams();
+ }
+ int pd_count = pd.Count;
- 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)))
- return false;
+ // Validate argument count
+ if (po_count == 0) {
+ if (arg_count != pd.Count)
+ return false;
+ }
+ else
+ {
+ if ((arg_count < ps_count) || (arg_count > pd_count))
+ return false;
+ }
+
+ if (arg_count > 0) {
+ for (int i = arg_count; i > 0 ; ) {
+ i--;
+
+ Argument a = (Argument) arguments [i];
+ if (a.ArgType == Argument.AType.NoArg)
+ {
+ Parameter p = (Parameter) ps.FixedParameters[i];
+ a = new Argument (p.ParameterInitializer, Argument.AType.Expression);
+ param_type = p.ParameterInitializer.Type;
+ }
+ else
+ {
+ param_type = pd.ParameterType (i);
+ if (ps != null) {
+ Parameter p = (Parameter) ps.FixedParameters[i];
+
+ if ((p.ModFlags & Parameter.Modifier.REF) != 0)
+ {
+ a = new Argument (a.Expr, Argument.AType.Ref);
+ if (!a.Resolve(ec,Location.Null))
+ return false;
+ }
+ }
+ }
+
+ if (!CheckParameterAgainstArgument (ec, pd, i, a, param_type))
+ return (false);
+ }
+ }
+ else
+ {
+ // If we have no arguments AND the first parameter is optional
+ // we must check for a candidate (the loop above wouldn't)
+ if (po_count > 0) {
+ ArrayList arglist = new ArrayList();
- if ((a_mod & Parameter.Modifier.ISBYREF) != 0) {
- Type pt = pd.ParameterType (i);
+ // Since we got so far, there's no need to check if
+ // arguments are optional; we simply retrieve
+ // parameter default values and build a brand-new
+ // argument list.
+
+ for (int i = 0; i < ps.FixedParameters.Length; i++) {
+ Parameter p = ps.FixedParameters[i];
+ Argument a = new Argument (p.ParameterInitializer, Argument.AType.Expression);
+ a.Resolve(ec, Location.Null);
+ arglist.Add (a);
+ }
+ arguments = arglist;
+ return true;
+ }
+ }
+ // We've found a candidate, so we exchange the dummy NoArg arguments
+ // with new arguments containing the default value for that parameter
+ ArrayList newarglist = new ArrayList();
+ for (int i = 0; i < arg_count; i++) {
+ Argument a = (Argument) arguments [i];
+ Parameter p = null;
- if (!pt.IsByRef)
- pt = TypeManager.LookupType (pt.FullName + "&");
+ if (ps != null)
+ p = (Parameter) ps.FixedParameters[i];
- if (pt != a.Type)
- return false;
+ if (a.ArgType == Argument.AType.NoArg){
+ a = new Argument (p.ParameterInitializer, Argument.AType.Expression);
+ a.Resolve(ec, Location.Null);
+ }
+
+ if ((p != null) && ((p.ModFlags & Parameter.Modifier.REF) != 0))
+ {
+ a.ArgType = Argument.AType.Ref;
+ a.Resolve(ec, Location.Null);
+ }
+ newarglist.Add(a);
+ int n = pd_count - arg_count;
+ if (n > 0)
+ {
+ for (int x = 0; x < n; x++)
+ {
+ Parameter op = (Parameter) ps.FixedParameters[x + arg_count];
+ Argument b = new Argument (op.ParameterInitializer, Argument.AType.Expression);
+ b.Resolve(ec, Location.Null);
+ newarglist.Add (b);
}
- } else
- return false;
+ }
}
-
+ arguments = newarglist;
return true;
}
-
+ static bool compare_name_filter (MemberInfo m, object filterCriteria)
+ {
+ return (m.Name == ((string) filterCriteria));
+ }
+ static Parameters GetFullParameters (MethodBase mb)
+ {
+ TypeContainer tc = TypeManager.LookupTypeContainer (mb.DeclaringType);
+ InternalParameters ip = TypeManager.LookupParametersByBuilder(mb);
+
+ return (ip != null) ? ip.Parameters : null;
+ }
+
+ // We need an overload for OverloadResolve because Invocation.DoResolve
+ // must pass Arguments by reference, since a later call to IsApplicable
+ // can change the argument list if optional parameters are defined
+ // in the method declaration
+ public static MethodBase OverloadResolve (EmitContext ec, MethodGroupExpr me,
+ ArrayList Arguments, Location loc)
+ {
+ ArrayList a = Arguments;
+ return OverloadResolve (ec, me, ref a, loc);
+ }
+
/// <summary>
/// Find the Applicable Function Members (7.4.2.1)
///
///
/// </summary>
public static MethodBase OverloadResolve (EmitContext ec, MethodGroupExpr me,
- ArrayList Arguments, Location loc)
+ ref ArrayList Arguments, Location loc)
{
ArrayList afm = new ArrayList ();
MethodBase method = null;
Type current_type = null;
int argument_count;
ArrayList candidates = new ArrayList ();
-
foreach (MethodBase candidate in me.Methods){
int x;
}
// Check if candidate is applicable (section 14.4.2.1)
- if (!IsApplicable (ec, Arguments, candidate))
+ if (!IsApplicable (ec, ref Arguments, candidate))
continue;
candidates.Add (candidate);
else
argument_count = Arguments.Count;
+
//
// Now we see if we can find params functions, applicable in their expanded form
// since if they were applicable in their normal form, they would have been selected
}
}
- if (method == null)
+ if (method == null) {
+ //
+ // Okay so we have failed to find anything so we
+ // return by providing info about the closest match
+ //
+ for (int i = 0; i < me.Methods.Length; ++i) {
+
+ MethodBase c = (MethodBase) me.Methods [i];
+ ParameterData pd = GetParameterData (c);
+
+ if (pd.Count != argument_count)
+ continue;
+
+ VerifyArgumentsCompat (ec, Arguments, argument_count, c, false,
+ null, loc);
+ }
+
return null;
+ }
//
// Now check that there are no ambiguities i.e the selected method
// so we debar the params method.
//
if (IsParamsMethodApplicable (ec, Arguments, candidate) &&
- IsApplicable (ec, Arguments, method))
+ IsApplicable (ec, ref Arguments, method))
continue;
int x = BetterFunction (ec, Arguments, method, candidate,
// And now check if the arguments are all compatible, perform conversions
// if necessary etc. and return if everything is all right
//
-
if (VerifyArgumentsCompat (ec, Arguments, argument_count, method,
chose_params_expanded, null, loc))
return method;
}
public static bool VerifyArgumentsCompat (EmitContext ec, ArrayList Arguments,
+ int argument_count,
+ MethodBase method,
+ bool chose_params_expanded,
+ Type delegate_type,
+ Location loc)
+ {
+ return (VerifyArgumentsCompat (ec, Arguments, argument_count,
+ method, chose_params_expanded, delegate_type, loc, null));
+ }
+
+ public static bool VerifyArgumentsCompat (EmitContext ec,
+ ArrayList Arguments,
int argument_count,
MethodBase method,
bool chose_params_expanded,
Type delegate_type,
- Location loc)
+ Location loc,
+ string InvokingProperty)
{
ParameterData pd = GetParameterData (method);
int pd_count = pd.Count;
-
+
for (int j = 0; j < argument_count; j++) {
Argument a = (Argument) Arguments [j];
Expression a_expr = a.Expr;
- Type parameter_type = pd.ParameterType (j);
-
+ Type parameter_type = pd.ParameterType(j);
+
+ if (parameter_type == null)
+ {
+ Error_WrongNumArguments(loc, (InvokingProperty == null)?((delegate_type == null)?FullMethodDesc (method):delegate_type.ToString ()):InvokingProperty, argument_count);
+ return false;
+ }
if (pd.ParameterModifier (j) == Parameter.Modifier.PARAMS &&
- chose_params_expanded)
- parameter_type = parameter_type.GetElementType ();
+ chose_params_expanded)
+ parameter_type = TypeManager.TypeToCoreType (parameter_type.GetElementType ());
if (a.Type != parameter_type){
Expression conv;
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");
+ if (InvokingProperty == null)
+ Report.Error (1502, loc,
+ "The best overloaded match for method '" +
+ FullMethodDesc (method) +
+ "' has some invalid arguments");
+ else
+ Report.Error (1502, loc,
+ "Property '" +
+ InvokingProperty +
+ "' has some invalid arguments");
else
Report.Error (1594, loc,
"Delegate '" + delegate_type.ToString () +
if (a_mod != p_mod &&
pd.ParameterModifier (pd_count - 1) != Parameter.Modifier.PARAMS) {
if (!Location.IsNull (loc)) {
- Console.WriteLine ("A:P: " + a.GetParameterModifier ());
- Console.WriteLine ("PP:: " + pd.ParameterModifier (j));
- Console.WriteLine ("PT: " + parameter_type.IsByRef);
Report.Error (1502, loc,
"The best overloaded match for method '" + FullMethodDesc (method)+
"' has some invalid arguments");
return true;
}
-
+
+ public override Expression DoResolveLValue (EmitContext ec, Expression right_side)
+ {
+ this.is_left_hand = true;
+ return DoResolve (ec);
+ }
+
public override Expression DoResolve (EmitContext ec)
{
//
// First, resolve the expression that is used to
// trigger the invocation
//
+ Expression expr_to_return = null;
+
if (expr is BaseAccess)
is_base = true;
- expr = expr.Resolve (ec, ResolveFlags.VariableOrValue | ResolveFlags.MethodGroup);
+ if ((ec.ReturnType != null) && (expr.ToString() == ec.BlockName)) {
+ ec.InvokingOwnOverload = true;
+ expr = expr.Resolve (ec, ResolveFlags.MethodGroup);
+ ec.InvokingOwnOverload = false;
+ }
+ else
+ {
+ ec.InvokingOwnOverload = false;
+ expr = expr.Resolve (ec, ResolveFlags.VariableOrValue | ResolveFlags.MethodGroup);
+ }
if (expr == null)
return null;
- if (!(expr is MethodGroupExpr)) {
+ if (expr is Invocation) {
+ // FIXME Calls which return an Array are not resolved (here or in the grammar)
+ expr = expr.Resolve(ec);
+ }
+
+ if (!(expr is MethodGroupExpr))
+ {
Type expr_type = expr.Type;
- if (expr_type != null){
+ if (expr_type != null)
+ {
bool IsDelegate = TypeManager.IsDelegateType (expr_type);
if (IsDelegate)
return (new DelegateInvocation (
}
}
- if (!(expr is MethodGroupExpr)){
- expr.Error118 (ResolveFlags.MethodGroup);
- return null;
- }
-
//
// Next, evaluate all the expressions in the argument list
//
- if (Arguments != null){
- foreach (Argument a in Arguments){
+ if (Arguments != null)
+ {
+ foreach (Argument a in Arguments)
+ {
+ if ((a.ArgType == Argument.AType.NoArg) && (!(expr is MethodGroupExpr)))
+ Report.Error (999, "This item cannot have empty arguments");
+
if (!a.Resolve (ec, loc))
- return null;
+ return null;
}
}
+
+ if (expr is MethodGroupExpr)
+ {
+ MethodGroupExpr mg = (MethodGroupExpr) expr;
+ method = OverloadResolve (ec, mg, ref Arguments, loc);
+
+ if (method == null)
+ {
+ Error (-6,
+ "Could not find any applicable function for this argument list");
+ return null;
+ }
- MethodGroupExpr mg = (MethodGroupExpr) expr;
- method = OverloadResolve (ec, mg, Arguments, loc);
+ if ((method as MethodInfo) != null)
+ {
+ MethodInfo mi = method as MethodInfo;
+ type = TypeManager.TypeToCoreType (mi.ReturnType);
+ if (!mi.IsStatic && !mg.IsExplicitImpl && (mg.InstanceExpression == null))
+ SimpleName.Error_ObjectRefRequired (ec, loc, mi.Name);
+ }
- if (method == null){
- Error (-6,
- "Could not find any applicable function for this argument list");
- return null;
+ if ((method as ConstructorInfo) != null)
+ {
+ ConstructorInfo ci = method as ConstructorInfo;
+ type = TypeManager.void_type;
+ if (!ci.IsStatic && !mg.IsExplicitImpl && (mg.InstanceExpression == null))
+ SimpleName.Error_ObjectRefRequired (ec, loc, ci.Name);
+ }
+
+ if (type.IsPointer)
+ {
+ if (!ec.InUnsafe)
+ {
+ UnsafeError (loc);
+ return null;
+ }
+ }
+ eclass = ExprClass.Value;
+ expr_to_return = this;
}
- MethodInfo mi = method as MethodInfo;
- if (mi != null) {
- type = TypeManager.TypeToCoreType (mi.ReturnType);
- if (!mi.IsStatic && !mg.IsExplicitImpl && (mg.InstanceExpression == null))
- SimpleName.Error_ObjectRefRequired (ec, loc, mi.Name);
+ if (expr is PropertyExpr)
+ {
+ PropertyExpr pe = ((PropertyExpr) expr);
+ pe.PropertyArgs = (ArrayList) Arguments.Clone();
+ Arguments.Clear();
+ Arguments = new ArrayList();
+ MethodBase mi = pe.PropertyInfo.GetGetMethod(true);
+
+ if(VerifyArgumentsCompat (ec, pe.PropertyArgs,
+ pe.PropertyArgs.Count, mi, false, null, loc, pe.Name))
+ {
+
+ expr_to_return = pe.DoResolve (ec);
+ expr_to_return.eclass = ExprClass.PropertyAccess;
+ }
+ else
+ {
+ throw new Exception("Error resolving Property Access expression\n" + pe.ToString());
+ }
}
- if (type.IsPointer){
- if (!ec.InUnsafe){
- UnsafeError (loc);
- return null;
+ if (expr is FieldExpr || expr is LocalVariableReference || expr is ParameterReference) {
+ if (expr.Type.IsArray) {
+ // If we are here, expr must be an ArrayAccess
+ ArrayList idxs = new ArrayList();
+ foreach (Argument a in Arguments)
+ {
+ idxs.Add (a.Expr);
+ }
+ ElementAccess ea = new ElementAccess (expr, idxs, expr.Location);
+ ArrayAccess aa = new ArrayAccess (ea, expr.Location);
+ expr_to_return = aa.DoResolve(ec);
+ expr_to_return.eclass = ExprClass.Variable;
+ }
+ else
+ {
+ // We can't resolve now, but we
+ // have to try to access the array with a call
+ // to LateIndexGet/Set in the runtime
+ Expression lig_call_expr;
+
+ if (!is_left_hand)
+ lig_call_expr = Mono.MonoBASIC.Parser.DecomposeQI("Microsoft.VisualBasic.CompilerServices.LateBinding.LateIndexGet", Location.Null);
+ else
+ lig_call_expr = Mono.MonoBASIC.Parser.DecomposeQI("Microsoft.VisualBasic.CompilerServices.LateBinding.LateIndexSet", Location.Null);
+ Expression obj_type = Mono.MonoBASIC.Parser.DecomposeQI("System.Object", Location.Null);
+ ArrayList adims = new ArrayList();
+
+ ArrayList ainit = new ArrayList();
+ foreach (Argument a in Arguments)
+ ainit.Add ((Expression) a.Expr);
+
+ adims.Add ((Expression) new IntLiteral (Arguments.Count));
+
+ Expression oace = new ArrayCreation (obj_type, adims, "", ainit, Location.Null);
+
+ ArrayList args = new ArrayList();
+ args.Add (new Argument(expr, Argument.AType.Expression));
+ args.Add (new Argument(oace, Argument.AType.Expression));
+ args.Add (new Argument(NullLiteral.Null, Argument.AType.Expression));
+
+ Expression lig_call = new Invocation (lig_call_expr, args, Location.Null);
+ expr_to_return = lig_call.Resolve(ec);
+ expr_to_return.eclass = ExprClass.Variable;
}
}
-
- eclass = ExprClass.Value;
- return this;
+
+ return expr_to_return;
}
+ static void Error_WrongNumArguments (Location loc, String name, int arg_count)
+ {
+ Report.Error (1501, loc, "No overload for method `" + name + "' takes `" +
+ arg_count + "' arguments");
+ }
+
// <summary>
// Emits the list of arguments as an array
// </summary>
///
/// The MethodBase argument might be null if the
/// emission of the arguments is known not to contain
- /// a `params' field (for example in constructors or other routines
+ /// a 'params' field (for example in constructors or other routines
/// that keep their arguments in this structure)
/// </summary>
public static void EmitArguments (EmitContext ec, MethodBase mb, ArrayList arguments)
IntConstant.EmitInt (ig, 0);
ig.Emit (OpCodes.Newarr, pd.ParameterType (0).GetElementType ());
}
-
return;
}
}
/// <remarks>
- /// is_base tells whether we want to force the use of the `call'
+ /// is_base tells whether we want to force the use of the 'call'
/// opcode instead of using callvirt. Call is required to call
/// a specific method, while callvirt will always use the most
/// recent method in the vtable.
public static void EmitCall (EmitContext ec, bool is_base,
bool is_static, Expression instance_expr,
MethodBase method, ArrayList Arguments, Location loc)
+ {
+ EmitCall (ec, is_base, is_static, instance_expr, method, Arguments, null, loc);
+ }
+
+ public static void EmitCall (EmitContext ec, bool is_base,
+ bool is_static, Expression instance_expr,
+ MethodBase method, ArrayList Arguments, ArrayList prop_args, Location loc)
{
ILGenerator ig = ec.ig;
bool struct_call = false;
Type decl_type = method.DeclaringType;
- if (!RootContext.StdLib) {
+ if (!RootContext.StdLib)
+ {
// Replace any calls to the system's System.Array type with calls to
// the newly created one.
if (method == TypeManager.system_int_array_get_length)
}
//
- // This checks the `ConditionalAttribute' on the method, and the
+ // This checks the 'ConditionalAttribute' on the method, and the
// ObsoleteAttribute
//
TypeManager.MethodFlags flags = TypeManager.GetMethodFlags (method, loc);
if ((flags & TypeManager.MethodFlags.ShouldIgnore) != 0)
return;
- if (!is_static){
+ if (!is_static)
+ {
if (decl_type.IsValueType)
struct_call = true;
//
// If this is ourselves, push "this"
//
- if (instance_expr == null){
+ if (instance_expr == null)
+ {
ig.Emit (OpCodes.Ldarg_0);
- } else {
+ }
+ else
+ {
//
// Push the instance expression
//
- if (instance_expr.Type.IsValueType){
+ if (instance_expr.Type.IsValueType)
+ {
//
// Special case: calls to a function declared in a
// reference-type with a value-type argument need
// to have their value boxed.
struct_call = true;
- if (decl_type.IsValueType){
+ if (decl_type.IsValueType)
+ {
//
// If the expression implements IMemoryLocation, then
// we can optimize and use AddressOf on the
//
// If not we have to use some temporary storage for
// it.
- if (instance_expr is IMemoryLocation){
+ if (instance_expr is IMemoryLocation)
+ {
((IMemoryLocation)instance_expr).
AddressOf (ec, AddressOp.LoadStore);
}
- else {
+ else
+ {
Type t = instance_expr.Type;
instance_expr.Emit (ec);
ig.Emit (OpCodes.Stloc, temp);
ig.Emit (OpCodes.Ldloca, temp);
}
- } else {
+ }
+ else
+ {
instance_expr.Emit (ec);
ig.Emit (OpCodes.Box, instance_expr.Type);
}
- } else
+ }
+ else
instance_expr.Emit (ec);
}
}
+
+ if (prop_args != null && prop_args.Count > 0)
+ {
+ if (Arguments == null)
+ Arguments = new ArrayList();
+
+ for (int i = prop_args.Count-1; i >=0 ; i--)
+ {
+ Arguments.Insert (0,prop_args[i]);
+ }
+
+ }
EmitArguments (ec, method, Arguments);
- if (is_static || struct_call || is_base){
- if (method is MethodInfo) {
+ if (is_static || struct_call || is_base)
+ {
+ if (method is MethodInfo)
+ {
ig.Emit (OpCodes.Call, (MethodInfo) method);
- } else
+ }
+ else
ig.Emit (OpCodes.Call, (ConstructorInfo) method);
- } else {
+ }
+ else
+ {
if (method is MethodInfo)
ig.Emit (OpCodes.Callvirt, (MethodInfo) method);
else
}
}
+ static void EmitPropertyArgs (EmitContext ec, ArrayList prop_args)
+ {
+ int top = prop_args.Count;
+
+ for (int i = 0; i < top; i++)
+ {
+ Argument a = (Argument) prop_args [i];
+ a.Emit (ec);
+ }
+ }
+
public override void Emit (EmitContext ec)
{
MethodGroupExpr mg = (MethodGroupExpr) this.expr;
// To enable this, look into:
// test-34 and test-89 and self bootstrapping.
//
- // For instance, we can avoid a copy by using `newobj'
+ // For instance, we can avoid a copy by using 'newobj'
// instead of Call + Push-temp on value types.
// value_target = MyEmptyExpression;
}
if (type.IsInterface || type.IsAbstract){
Error (
- 144, "It is not possible to create instances of interfaces " +
- "or abstract classes");
+ 30376, "It is not possible to create instances of Interfaces " +
+ "or classes marked as MustInherit");
return null;
}
Expression ml;
ml = MemberLookupFinal (ec, type, ".ctor",
MemberTypes.Constructor,
- AllBindingFlags | BindingFlags.DeclaredOnly, loc);
+ AllBindingFlags | BindingFlags.Public, loc);
if (ml == null)
return null;
//
// The list of Argument types.
- // This is used to construct the `newarray' or constructor signature
+ // This is used to construct the 'newarray' or constructor signature
//
ArrayList arguments;
return new ComposedCast (base_type, sb.ToString (), loc);
}
- void error178 ()
+ void Error_IncorrectArrayInitializer ()
{
Error (178, "Incorrectly structured array initializer");
}
int value = (int) ((Constant) a.Expr).GetValue ();
if (value != probe.Count) {
- error178 ();
+ Error_IncorrectArrayInitializer ();
return false;
}
bounds [idx] = value;
}
-
+
+ int child_bounds = -1;
foreach (object o in probe) {
if (o is ArrayList) {
+ int current_bounds = ((ArrayList) o).Count;
+
+ if (child_bounds == -1)
+ child_bounds = current_bounds;
+
+ else if (child_bounds != current_bounds){
+ Error_IncorrectArrayInitializer ();
+ return false;
+ }
bool ret = CheckIndices (ec, (ArrayList) o, idx + 1, specified_dims);
if (!ret)
return false;
} else {
+ if (child_bounds != -1){
+ Error_IncorrectArrayInitializer ();
+ return false;
+ }
+
Expression tmp = (Expression) o;
tmp = tmp.Resolve (ec);
if (tmp == null)
UpdateIndices (ec);
if (arguments.Count != dimensions) {
- error178 ();
+ Error_IncorrectArrayInitializer ();
return false;
}
}
//
- // Converts `source' to an int, uint, long or ulong.
+ // Converts 'source' to an int, uint, long or ulong.
//
Expression ExpressionToArrayArgument (EmitContext ec, Expression source)
{
StringBuilder array_qualifier = new StringBuilder (rank);
//
- // `In the first form allocates an array instace of the type that results
+ // 'In the first form allocates an array instace of the type that results
// from deleting each of the individual expression from the expression list'
//
if (num_arguments > 0) {
//
Expression array_type_expr;
array_type_expr = new ComposedCast (requested_base_type, array_qualifier.ToString (), loc);
+ string sss = array_qualifier.ToString ();
type = ec.DeclSpace.ResolveType (array_type_expr, false, loc);
if (type == null)
byte [] element;
int count = array_data.Count;
+ if (underlying_type.IsEnum)
+ underlying_type = TypeManager.EnumToUnderlying (underlying_type);
+
factor = GetTypeSize (underlying_type);
if (factor == 0)
- return null;
+ throw new Exception ("unrecognized type in MakeByteBlob: " + underlying_type);
data = new byte [(count * factor + 4) & ~3];
int idx = 0;
bool val = (bool) v;
data [idx] = (byte) (val ? 1 : 0);
}
+ } else if (underlying_type == TypeManager.decimal_type){
+ if (!(v is Expression)){
+ int [] bits = Decimal.GetBits ((decimal) v);
+ int p = idx;
+
+ for (int j = 0; j < 4; j++){
+ data [p++] = (byte) (bits [j] & 0xff);
+ data [p++] = (byte) ((bits [j] >> 8) & 0xff);
+ data [p++] = (byte) ((bits [j] >> 16) & 0xff);
+ data [p++] = (byte) (bits [j] >> 24);
+ }
+ }
} else
- throw new Exception ("Unrecognized type in MakeByteBlob");
+ throw new Exception ("Unrecognized type in MakeByteBlob: " + underlying_type);
idx += factor;
}
ILGenerator ig = ec.ig;
byte [] data = MakeByteBlob (array_data, underlying_type, loc);
-
- if (data != null) {
- fb = RootContext.MakeStaticData (data);
- if (is_expression)
- ig.Emit (OpCodes.Dup);
- ig.Emit (OpCodes.Ldtoken, fb);
- ig.Emit (OpCodes.Call,
- TypeManager.void_initializearray_array_fieldhandle);
- }
+ fb = RootContext.MakeStaticData (data);
+
+ if (is_expression)
+ ig.Emit (OpCodes.Dup);
+ ig.Emit (OpCodes.Ldtoken, fb);
+ ig.Emit (OpCodes.Call,
+ TypeManager.void_initializearray_array_fieldhandle);
}
//
ig.Emit (OpCodes.Ldloc, temp);
- for (int idx = dims; idx > 0; ) {
- idx--;
+ for (int idx = 0; idx < dims; idx++)
IntConstant.EmitInt (ig, current_pos [idx]);
- }
//
// If we are dealing with a struct, get the
//
// Advance counter
//
- for (int j = 0; j < dims; j++){
+ for (int j = dims - 1; j >= 0; j--){
current_pos [j]++;
if (current_pos [j] < (int) bounds [j])
break;
}
/// <summary>
- /// Represents the `this' construct
+ /// Represents the 'this' construct
/// </summary>
public class This : Expression, IAssignMethod, IMemoryLocation, IVariable {
vi.SetAssigned (ec);
if (ec.TypeContainer is Class){
- Error (1604, "Cannot assign to `this'");
+ Error (1604, "Cannot assign to 'this'");
return null;
}
//
// consider: struct X { int val; int P { set { val = value; }}}
//
- // Yes, this looks very bad. Look at `NOTAS' for
+ // Yes, this looks very bad. Look at 'NOTAS' for
// an explanation.
// ec.ig.Emit (OpCodes.Ldarga_S, (byte) 0);
}
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");
+ return null;
+ }
+
type_queried = ec.DeclSpace.ResolveType (QueriedType, false, loc);
if (type_queried == null)
return null;
+ if (!TypeManager.IsUnmanagedType (type_queried)){
+ Report.Error (208, "Cannot take the size of an unmanaged type (" + TypeManager.MonoBASIC_Name (type_queried) + ")");
+ return null;
+ }
+
type = TypeManager.int32_type;
eclass = ExprClass.Value;
return this;
static void error176 (Location loc, string name)
{
- Report.Error (176, loc, "Static member `" +
+ Report.Error (176, loc, "Static member '" +
name + "' cannot be accessed " +
"with an instance reference, qualify with a " +
"type name instead");
{
bool left_is_type, left_is_explicit;
- // If `left' is null, then we're called from SimpleNameResolve and this is
+ // If 'left' is null, then we're called from SimpleNameResolve and this is
// a member in the currently defining class.
if (left == null) {
left_is_type = ec.IsStatic || ec.IsFieldInitializer;
left_is_explicit = false;
- // Implicitly default to `this' unless we're static.
+ // Implicitly default to 'this' unless we're static.
if (!ec.IsStatic && !ec.IsFieldInitializer && !ec.InEnumContext)
left = ec.This;
} else {
o = fi.GetValue (fi);
if (decl_type.IsSubclassOf (TypeManager.enum_type)) {
+ if (left_is_explicit && !left_is_type &&
+ !IdenticalNameAndTypeName (ec, left_original, loc)) {
+ error176 (loc, fe.FieldInfo.Name);
+ return null;
+ }
+
Expression enum_member = MemberLookup (
ec, decl_type, "value__", MemberTypes.Field,
AllBindingFlags, loc);
}
if (expr_type.IsPointer){
- Error (23, "The `.' operator can not be applied to pointer operands (" +
- TypeManager.CSharpName (expr_type) + ")");
+ Error (23, "The '.' operator can not be applied to pointer operands (" +
+ TypeManager.MonoBASIC_Name (expr_type) + ")");
return null;
}
member_lookup = MemberLookup (ec, expr_type, Identifier, loc);
- if (member_lookup == null){
+ if (member_lookup == null)
+ {
// Error has already been reported.
if (errors < Report.Errors)
return null;
-
+
//
// Try looking the member up from the same type, if we find
// it, we know that the error was due to limited visibility
object lookup = TypeManager.MemberLookup (
expr_type, expr_type, AllMemberTypes, AllBindingFlags |
BindingFlags.NonPublic, Identifier);
+
if (lookup == null)
- Error (117, "`" + expr_type + "' does not contain a " +
- "definition for `" + Identifier + "'");
- else if ((expr_type != ec.ContainerType) &&
- ec.ContainerType.IsSubclassOf (expr_type)){
-
- // Although a derived class can access protected members of
- // its base class it cannot do so through an instance of the
- // base class (CS1540). If the expr_type is a parent of the
- // ec.ContainerType and the lookup succeeds with the latter one,
- // then we are in this situation.
-
- lookup = TypeManager.MemberLookup (
- ec.ContainerType, ec.ContainerType, AllMemberTypes,
- AllBindingFlags, Identifier);
-
- if (lookup != null)
- Error (1540, "Cannot access protected member `" +
+ Error (30456, "'" + expr_type + "' does not contain a definition for '" + Identifier + "'");
+ else
+ {
+ if ((expr_type != ec.ContainerType) &&
+ ec.ContainerType.IsSubclassOf (expr_type))
+ {
+
+ // Although a derived class can access protected members of
+ // its base class it cannot do so through an instance of the
+ // base class (CS1540). If the expr_type is a parent of the
+ // ec.ContainerType and the lookup succeeds with the latter one,
+ // then we are in this situation.
+
+ lookup = TypeManager.MemberLookup(
+ ec.ContainerType, ec.ContainerType, AllMemberTypes,
+ AllBindingFlags, Identifier);
+
+ if (lookup != null)
+ Error (1540, "Cannot access protected member '" +
expr_type + "." + Identifier + "' " +
- "via a qualifier of type `" +
- TypeManager.CSharpName (expr_type) + "'; the " +
- "qualifier must be of type `" +
- TypeManager.CSharpName (ec.ContainerType) + "' " +
+ "via a qualifier of type '" + TypeManager.MonoBASIC_Name (expr_type) + "'; the " +
+ "qualifier must be of type '" + TypeManager.MonoBASIC_Name (ec.ContainerType) + "' " +
"(or derived from it)");
- else
- Error (122, "`" + expr_type + "." + Identifier + "' " +
+ else
+ Error (30390, "'" + expr_type + "." + Identifier + "' " +
"is inaccessible because of its protection level");
- } else
- Error (122, "`" + expr_type + "." + Identifier + "' " +
+ } else
+ Error (30390, "'" + expr_type + "." + Identifier + "' " +
"is inaccessible because of its protection level");
-
+ }
return null;
}
}
}
+
+
/// <summary>
/// Implements checked expressions
/// </summary>
if (Expr == null)
return null;
+ if (Expr is Constant)
+ return Expr;
+
eclass = Expr.eclass;
type = Expr.Type;
return this;
if (Expr == null)
return null;
+ if (Expr is Constant)
+ return Expr;
+
eclass = Expr.eclass;
type = Expr.Type;
return this;
ElementAccess ea;
LocalTemporary [] cached_locations;
-
+
public ArrayAccess (ElementAccess ea_data, Location l)
{
ea = ea_data;
#endif
Type t = ea.Expr.Type;
+/*
+ if (t == typeof (System.Object))
+ {
+ // We can't resolve now, but we
+ // have to try to access the array with a call
+ // to LateIndexGet in the runtime
+
+ Expression lig_call_expr = Mono.MonoBASIC.Parser.DecomposeQI("Microsoft.VisualBasic.CompilerServices.LateBinding.LateIndexGet", Location.Null);
+ Expression obj_type = Mono.MonoBASIC.Parser.DecomposeQI("System.Object", Location.Null);
+ ArrayList adims = new ArrayList();
+
+ ArrayList ainit = new ArrayList();
+ foreach (Argument a in ea.Arguments)
+ ainit.Add ((Expression) a.Expr);
+
+ adims.Add ((Expression) new IntLiteral (ea.Arguments.Count));
+
+ Expression oace = new ArrayCreation (obj_type, adims, "", ainit, Location.Null);
+
+ ArrayList args = new ArrayList();
+ args.Add (new Argument(ea.Expr, Argument.AType.Expression));
+ args.Add (new Argument(oace, Argument.AType.Expression));
+ args.Add (new Argument(NullLiteral.Null, Argument.AType.Expression));
+
+ Expression lig_call = new Invocation (lig_call_expr, args, Location.Null);
+ lig_call = lig_call.Resolve(ec);
+ return lig_call;
+ }
+*/
if (t.GetArrayRank () != ea.Arguments.Count){
ea.Error (22,
"Incorrect number of indexes for array " +
}
/// <summary>
- /// Emits the right opcode to load an object of Type `t'
+ /// Emits the right opcode to load an object of Type 't'
/// from an array of T
/// </summary>
static public void EmitLoadOpcode (ILGenerator ig, Type type)
}
/// <summary>
- /// Emits the right opcode to store an object of Type `t'
+ /// Emits the right opcode to store an object of Type 't'
/// from an array of T.
/// </summary>
static public void EmitStoreOpcode (ILGenerator ig, Type t)
{
t = TypeManager.TypeToCoreType (t);
+ if (TypeManager.IsEnumType (t) && t != TypeManager.enum_type)
+ t = TypeManager.EnumToUnderlying (t);
if (t == TypeManager.byte_type || t == TypeManager.sbyte_type ||
t == TypeManager.bool_type)
ig.Emit (OpCodes.Stelem_I1);
ig.Emit (OpCodes.Stelem_R8);
else if (t == TypeManager.intptr_type)
ig.Emit (OpCodes.Stelem_I);
- else if (t.IsValueType)
+ else if (t.IsValueType){
ig.Emit (OpCodes.Stobj, t);
- else
+ } else
ig.Emit (OpCodes.Stelem_Ref);
}
// pair
//
if (rank == 1){
- if (t.IsValueType && !TypeManager.IsBuiltinType (t))
+ if (t == TypeManager.enum_type || t == TypeManager.decimal_type ||
+ (t.IsSubclassOf (TypeManager.value_type) && !TypeManager.IsEnumType (t) && !TypeManager.IsBuiltinType (t)))
ig.Emit (OpCodes.Ldelema, t);
}
}
Report.Error (21, loc,
- "Type `" + TypeManager.CSharpName (lookup_type) +
+ "Type '" + TypeManager.MonoBASIC_Name (lookup_type) +
"' does not have any indexers defined");
return null;
}
//
// Points to our "data" repository
//
- ElementAccess ea;
MethodInfo get, set;
Indexers ilist;
ArrayList set_arguments;
+ bool is_base_indexer;
+
+ protected Type indexer_type;
+ protected Type current_type;
+ protected Expression instance_expr;
+ protected ArrayList arguments;
- public IndexerAccess (ElementAccess ea_data, Location l)
+ public IndexerAccess (ElementAccess ea, Location loc)
+ : this (ea.Expr, false, loc)
{
- ea = ea_data;
- eclass = ExprClass.Value;
- loc = l;
+ this.arguments = ea.Arguments;
+ }
+
+ protected IndexerAccess (Expression instance_expr, bool is_base_indexer,
+ Location loc)
+ {
+ this.instance_expr = instance_expr;
+ this.is_base_indexer = is_base_indexer;
+ this.eclass = ExprClass.Value;
+ this.loc = loc;
+ }
+
+ protected virtual bool CommonResolve (EmitContext ec)
+ {
+ indexer_type = instance_expr.Type;
+ current_type = ec.ContainerType;
+
+ return true;
}
public override Expression DoResolve (EmitContext ec)
{
- Type indexer_type = ea.Expr.Type;
-
+ if (!CommonResolve (ec))
+ return null;
+
//
- // Step 1: Query for all `Item' *properties*. Notice
+ // Step 1: Query for all 'Item' *properties*. Notice
// that the actual methods are pointed from here.
//
// This is a group of properties, piles of them.
if (ilist == null)
ilist = Indexers.GetIndexersForType (
- ec.ContainerType, indexer_type, ea.Location);
-
+ current_type, indexer_type, loc);
//
// Step 2: find the proper match
//
- if (ilist != null && ilist.getters != null && ilist.getters.Count > 0){
- Location loc = ea.Location;
-
+ if (ilist != null && ilist.getters != null && ilist.getters.Count > 0)
get = (MethodInfo) Invocation.OverloadResolve (
- ec, new MethodGroupExpr (ilist.getters, loc), ea.Arguments, loc);
- }
+ ec, new MethodGroupExpr (ilist.getters, loc), arguments, loc);
if (get == null){
- ea.Error (154, "indexer can not be used in this context, because " +
- "it lacks a `get' accessor");
+ Error (154, "indexer can not be used in this context, because " +
+ "it lacks a 'get' accessor");
return null;
}
type = get.ReturnType;
if (type.IsPointer && !ec.InUnsafe){
- UnsafeError (ea.Location);
+ UnsafeError (loc);
return null;
}
public override Expression DoResolveLValue (EmitContext ec, Expression right_side)
{
- Type indexer_type = ea.Expr.Type;
+ if (!CommonResolve (ec))
+ return null;
+
Type right_type = right_side.Type;
if (ilist == null)
ilist = Indexers.GetIndexersForType (
- ec.ContainerType, indexer_type, ea.Location);
+ current_type, indexer_type, loc);
if (ilist != null && ilist.setters != null && ilist.setters.Count > 0){
- Location loc = ea.Location;
-
- set_arguments = (ArrayList) ea.Arguments.Clone ();
+ set_arguments = (ArrayList) arguments.Clone ();
set_arguments.Add (new Argument (right_side, Argument.AType.Expression));
set = (MethodInfo) Invocation.OverloadResolve (
}
if (set == null){
- ea.Error (200, "indexer X.this [" + TypeManager.CSharpName (right_type) +
- "] lacks a `set' accessor");
+ Error (200, "indexer X.this [" + TypeManager.MonoBASIC_Name (right_type) +
+ "] lacks a 'set' accessor");
return null;
}
public override void Emit (EmitContext ec)
{
- Invocation.EmitCall (ec, false, false, ea.Expr, get, ea.Arguments, ea.Location);
+ Invocation.EmitCall (ec, false, false, instance_expr, get, arguments, loc);
}
//
//
public void EmitAssign (EmitContext ec, Expression source)
{
- Invocation.EmitCall (ec, false, false, ea.Expr, set, set_arguments, ea.Location);
+ Invocation.EmitCall (ec, false, false, instance_expr, set, set_arguments, loc);
}
}
/// The base operator for method names
/// </summary>
public class BaseAccess : Expression {
- string member;
+ public string member;
public BaseAccess (string member, Location l)
{
Expression e;
if (ec.IsStatic){
- Error (1511,
- "Keyword base is not allowed in static method");
+ Error (1511, "Keyword MyBase is not allowed in static method");
return null;
}
+ if (member == "New")
+ member = ".ctor";
+
member_lookup = MemberLookup (ec, base_type, base_type, member,
AllMemberTypes, AllBindingFlags, loc);
+
if (member_lookup == null) {
- Error (117,
- TypeManager.CSharpName (base_type) + " does not " +
- "contain a definition for `" + member + "'");
+ Error (30456,
+ TypeManager.MonoBASIC_Name (base_type) + " does not " +
+ "contain a definition for '" + member + "'");
return null;
}
/// <summary>
/// The base indexer operator
/// </summary>
- public class BaseIndexerAccess : Expression {
- ArrayList Arguments;
-
- public BaseIndexerAccess (ArrayList args, Location l)
+ public class BaseIndexerAccess : IndexerAccess {
+ public BaseIndexerAccess (ArrayList args, Location loc)
+ : base (null, true, loc)
{
- Arguments = args;
- loc = l;
+ arguments = new ArrayList ();
+ foreach (Expression tmp in args)
+ arguments.Add (new Argument (tmp, Argument.AType.Expression));
}
- public override Expression DoResolve (EmitContext ec)
+ protected override bool CommonResolve (EmitContext ec)
{
- Type current_type = ec.ContainerType;
- Type base_type = current_type.BaseType;
- Expression member_lookup;
+ instance_expr = ec.This;
- if (ec.IsStatic){
- Error (1511,
- "Keyword base is not allowed in static method");
- return null;
- }
-
- member_lookup = MemberLookup (ec, base_type, base_type, "get_Item",
- MemberTypes.Method, AllBindingFlags, loc);
- if (member_lookup == null)
- return null;
+ current_type = ec.ContainerType.BaseType;
+ indexer_type = current_type;
- return MemberAccess.ResolveMemberAccess (ec, member_lookup, ec.This, loc, null);
- }
+ foreach (Argument a in arguments){
+ if (!a.Resolve (ec, loc))
+ return false;
+ }
- public override void Emit (EmitContext ec)
- {
- throw new Exception ("Should never be called");
+ return true;
}
}
/// we only care about the side effect conversions to be performed
///
/// This is also now used as a placeholder where a no-action expression
- /// is needed (the `New' class).
+ /// is needed (the 'New' class).
/// </summary>
public class EmptyExpression : Expression {
public EmptyExpression ()
public Expression DoResolveType (EmitContext ec)
{
- left = left.Resolve (ec, ResolveFlags.Type);
- if (left == null)
+ Type ltype = ec.DeclSpace.ResolveType (left, false, loc);
+ if (ltype == null)
return null;
- type = RootContext.LookupType (
- ec.DeclSpace, left.Type.FullName + dim, false, loc);
- if (type == null)
- return null;
+ //
+ // ltype.Fullname is already fully qualified, so we can skip
+ // a lot of probes, and go directly to TypeManager.LookupType
+ //
+ string cname = ltype.FullName + dim;
+ type = TypeManager.LookupTypeDirect (cname);
+ if (type == null){
+ //
+ // For arrays of enumerations we are having a problem
+ // with the direct lookup. Need to investigate.
+ //
+ // For now, fall back to the full lookup in that case.
+ //
+ type = RootContext.LookupType (
+ ec.DeclSpace, cname, false, loc);
+
+ if (type == null)
+ return null;
+ }
if (!ec.ResolvingTypeTree){
//
}
//
- // Implements the `stackalloc' keyword
+ // Implements the 'stackalloc' keyword
//
public class StackAlloc : Expression {
Type otype;
projects / mono.git / blobdiff