public class ReflectionParameters : ParameterData {
ParameterInfo [] pi;
Type [] types;
- bool last_arg_is_params = false;
- bool is_varargs = false;
-
+ int params_idx = -1;
+ bool is_varargs;
+ ParameterData gpd;
+
public ReflectionParameters (MethodBase mb)
{
- object [] attrs;
-
ParameterInfo [] pi = mb.GetParameters ();
is_varargs = (mb.CallingConvention & CallingConventions.VarArgs) != 0;
-
+
this.pi = pi;
- int count = pi.Length-1;
-
- if (pi.Length == 0) {
- types = TypeManager.NoTypes;
- } else {
- types = new Type [pi.Length];
- for (int i = 0; i < pi.Length; i++)
- types [i] = pi [i].ParameterType;
+ int count = pi.Length;
+
+ if (count == 0) {
+ types = Type.EmptyTypes;
+ return;
}
- if (count >= 0) {
- attrs = pi [count].GetCustomAttributes (TypeManager.param_array_type, true);
+ types = new Type [count];
+ for (int i = 0; i < count; i++)
+ types [i] = pi [i].ParameterType;
+
+ // TODO: This (if) should be done one level higher to correctly use
+ // out caching facilities.
+ MethodBase generic = TypeManager.DropGenericMethodArguments (mb);
+ if (generic != mb) {
+ gpd = TypeManager.GetParameterData (generic);
+ if (gpd.HasParams) {
+ for (int i = gpd.Count; i != 0; --i) {
+ if ((gpd.ParameterModifier (i-1) & Parameter.Modifier.PARAMS) != 0) {
+ this.params_idx = i-1;
+ break;
+ }
+ }
+ }
+ return;
+ }
- if (attrs == null)
- return;
-
- if (attrs.Length == 0)
+ //
+ // So far, the params attribute can be used in C# for the last
+ // and next to last method parameters.
+ // If some other language can place it anywhere we will
+ // have to analyze all parameters and not just last 2.
+ //
+ --count;
+ for (int i = count; i >= 0 && i > count - 2; --i) {
+ if (!pi [i].ParameterType.IsArray)
+ continue;
+
+ object [] attrs = pi [i].GetCustomAttributes (TypeManager.param_array_type, true);
+ if (attrs.Length == 1) {
+ params_idx = i;
return;
+ }
+ }
+ }
+
+ public override bool Equals (object obj)
+ {
+ ReflectionParameters rp = obj as ReflectionParameters;
+ if (rp == null)
+ return false;
- last_arg_is_params = true;
+ if (Count != rp.Count)
+ return false;
+
+ for (int i = 0; i < Count; ++i) {
+ if (!types [i].Equals (rp.types [i]))
+ return false;
}
+ return true;
+ }
+
+ public override int GetHashCode ()
+ {
+ return base.GetHashCode ();
}
-
+
public string GetSignatureForError ()
{
StringBuilder sb = new StringBuilder ("(");
public Type ParameterType (int pos)
{
- if (last_arg_is_params && pos >= pi.Length - 1)
- return pi [pi.Length - 1].ParameterType;
- else if (is_varargs && pos >= pi.Length)
+ if (is_varargs && pos >= pi.Length)
return TypeManager.runtime_argument_handle_type;
- else {
- Type t = pi [pos].ParameterType;
- return t;
- }
+ return pi [pos].ParameterType;
}
public string ParameterName (int pos)
{
- if (last_arg_is_params && pos >= pi.Length - 1)
- return pi [pi.Length - 1].Name;
- else if (is_varargs && pos >= pi.Length)
+ if (gpd != null)
+ return gpd.ParameterName (pos);
+
+ if (is_varargs && pos >= pi.Length)
return "__arglist";
- else
- return pi [pos].Name;
+
+ return pi [pos].Name;
}
public string ParameterDesc (int pos)
{
if (is_varargs && pos >= pi.Length)
- return "";
+ return "";
StringBuilder sb = new StringBuilder ();
sb.Append ("out ");
else
sb.Append ("ref ");
- }
+ }
- if (pos >= pi.Length - 1 && last_arg_is_params)
+ if (params_idx == pos)
sb.Append ("params ");
sb.Append (TypeManager.CSharpName (partype).Replace ("&", ""));
return sb.ToString ();
-
}
public Parameter.Modifier ParameterModifier (int pos)
{
- if (last_arg_is_params && pos >= pi.Length - 1)
+ if (pos == params_idx)
return Parameter.Modifier.PARAMS;
else if (is_varargs && pos >= pi.Length)
return Parameter.Modifier.ARGLIST;
-
+
+ if (gpd != null)
+ return gpd.ParameterModifier (pos);
+
Type t = pi [pos].ParameterType;
if (t.IsByRef){
if ((pi [pos].Attributes & (ParameterAttributes.Out|ParameterAttributes.In)) == ParameterAttributes.Out)
else
return Parameter.Modifier.REF;
}
-
+
return Parameter.Modifier.NONE;
}
public int Count {
- get {
- return is_varargs ? pi.Length + 1 : pi.Length;
- }
+ get { return is_varargs ? pi.Length + 1 : pi.Length; }
}
public bool HasParams {
- get {
- return this.last_arg_is_params;
- }
+ get { return params_idx != -1; }
}
public Type[] Types {
- get {
- return types;
- }
+ get { return types; }
}
-
}
+#if GMCS_SOURCE
+ public class ReflectionConstraints : GenericConstraints
+ {
+ GenericParameterAttributes attrs;
+ Type base_type;
+ Type class_constraint;
+ Type[] iface_constraints;
+ string name;
+
+ public static GenericConstraints GetConstraints (Type t)
+ {
+ Type [] constraints = t.GetGenericParameterConstraints ();
+ GenericParameterAttributes attrs = t.GenericParameterAttributes;
+ if (constraints.Length == 0 && attrs == GenericParameterAttributes.None)
+ return null;
+ return new ReflectionConstraints (t.Name, constraints, attrs);
+ }
+
+ private ReflectionConstraints (string name, Type [] constraints, GenericParameterAttributes attrs)
+ {
+ this.name = name;
+ this.attrs = attrs;
+
+ if ((constraints.Length > 0) && !constraints [0].IsInterface) {
+ class_constraint = constraints [0];
+ iface_constraints = new Type [constraints.Length - 1];
+ Array.Copy (constraints, 1, iface_constraints, 0, constraints.Length - 1);
+ } else
+ iface_constraints = constraints;
+
+ if (HasValueTypeConstraint)
+ base_type = TypeManager.value_type;
+ else if (class_constraint != null)
+ base_type = class_constraint;
+ else
+ base_type = TypeManager.object_type;
+ }
+
+ public override string TypeParameter {
+ get { return name; }
+ }
+
+ public override GenericParameterAttributes Attributes {
+ get { return attrs; }
+ }
+
+ public override Type ClassConstraint {
+ get { return class_constraint; }
+ }
+
+ public override Type EffectiveBaseClass {
+ get { return base_type; }
+ }
+
+ public override Type[] InterfaceConstraints {
+ get { return iface_constraints; }
+ }
+ }
+#endif
+
class PtrHashtable : Hashtable {
sealed class PtrComparer : IComparer {
private PtrComparer () {}
-
+
public static PtrComparer Instance = new PtrComparer ();
-
+
public int Compare (object x, object y)
{
if (x == y)
return 1;
}
}
-
+
public PtrHashtable ()
{
comparer = PtrComparer.Instance;
this.len = len;
comparer = new ArrComparer (len);
}
- }
+ }
struct Pair {
public object First;
public object Second;
-
+
public Pair (object f, object s)
{
First = f;
public class DoubleHash {
const int DEFAULT_INITIAL_BUCKETS = 100;
-
+
public DoubleHash () : this (DEFAULT_INITIAL_BUCKETS) {}
-
+
public DoubleHash (int size)
{
count = size;
buckets = new Entry [size];
}
-
+
int count;
Entry [] buckets;
int size = 0;
-
+
class Entry {
public object key1;
public object key2;
public int hash;
public object value;
public Entry next;
-
+
public Entry (object key1, object key2, int hash, object value, Entry next)
{
this.key1 = key1;
public bool Lookup (object a, object b, out object res)
{
int h = (a.GetHashCode () ^ b.GetHashCode ()) & 0x7FFFFFFF;
-
+
for (Entry e = buckets [h % count]; e != null; e = e.next) {
if (e.hash == h && e.key1.Equals (a) && e.key2.Equals (b)) {
res = e.value;
public void Insert (object a, object b, object value)
{
// Is it an existing one?
-
+
int h = (a.GetHashCode () ^ b.GetHashCode ()) & 0x7FFFFFFF;
-
+
for (Entry e = buckets [h % count]; e != null; e = e.next) {
if (e.hash == h && e.key1.Equals (a) && e.key2.Equals (b))
e.value = value;
}
-
+
int bucket = h % count;
buckets [bucket] = new Entry (a, b, h, value, buckets [bucket]);
-
+
// Grow whenever we double in size
if (size++ == count) {
count <<= 1;
count ++;
-
+
Entry [] newBuckets = new Entry [count];
foreach (Entry root in buckets) {
Entry e = root;
projects / mono.git / blobdiff