X-Git-Url: http://wien.tomnetworks.com/gitweb/?a=blobdiff_plain;f=mcs%2Fmcs%2Fsupport.cs;h=b31507195d77b7604c1adb14513bfdf3d6566d64;hb=0c2bb8157f43826a57c39b863a1d67e3aef1b7b2;hp=d24e4f5c2793458b113bf9cd7ffdf1c73f76f956;hpb=2db597d2a1263e0a8409036f8c9baa05cc11199b;p=mono.git
diff --git a/mcs/mcs/support.cs b/mcs/mcs/support.cs
old mode 100755
new mode 100644
index d24e4f5c279..b31507195d7
--- a/mcs/mcs/support.cs
+++ b/mcs/mcs/support.cs
@@ -5,216 +5,454 @@
// Author:
// Miguel de Icaza (miguel@ximian.com)
//
-// (C) 2001 Ximian, Inc (http://www.ximian.com)
+// Copyright 2001 Ximian, Inc (http://www.ximian.com)
+// Copyright 2003-2008 Novell, Inc
//
using System;
+using System.IO;
using System.Text;
using System.Reflection;
using System.Collections;
using System.Reflection.Emit;
+using System.Globalization;
namespace Mono.CSharp {
- public interface ParameterData {
- Type ParameterType (int pos);
- int Count { get; }
- string ParameterDesc (int pos);
- Parameter.Modifier ParameterModifier (int pos);
- }
-
- public class ReflectionParameters : ParameterData {
- ParameterInfo [] pi;
- bool last_arg_is_params;
-
- public ReflectionParameters (ParameterInfo [] pi)
+ class PtrHashtable : Hashtable {
+ sealed class PtrComparer : IComparer
+#if NET_2_0
+ , IEqualityComparer
+#endif
{
- object [] a;
-
- this.pi = pi;
+ private PtrComparer () {}
- int count = pi.Length-1;
+ public static PtrComparer Instance = new PtrComparer ();
- if (count > 0) {
- a = pi [count].GetCustomAttributes (TypeManager.param_array_type, false);
-
- if (a != null)
- if (a.Length != 0)
- last_arg_is_params = true;
- }
+ public int Compare (object x, object y)
+ {
+ if (x == y)
+ return 0;
+ else
+ return 1;
+ }
+#if NET_2_0
+ bool IEqualityComparer.Equals (object x, object y)
+ {
+ return x == y;
+ }
+
+ int IEqualityComparer.GetHashCode (object obj)
+ {
+ return obj.GetHashCode ();
+ }
+#endif
+
}
-
- public Type ParameterType (int pos)
+
+#if NET_2_0
+ public PtrHashtable () : base (PtrComparer.Instance) {}
+#else
+ public PtrHashtable ()
{
- if (last_arg_is_params && pos >= pi.Length - 1)
- return pi [pi.Length -1].ParameterType.GetElementType ();
- else
- return pi [pos].ParameterType;
+ comparer = PtrComparer.Instance;
}
+#endif
- public string ParameterDesc (int pos)
+#if MS_COMPATIBLE
+ //
+ // Workaround System.InvalidOperationException for enums
+ //
+ protected override int GetHash (object key)
{
- StringBuilder sb = new StringBuilder ();
+ TypeBuilder tb = key as TypeBuilder;
+ if (tb != null && tb.BaseType == TypeManager.enum_type && tb.BaseType != null)
+ key = tb.BaseType;
- if (pi [pos].IsOut)
- sb.Append ("out ");
+ return base.GetHash (key);
+ }
+#endif
+ }
- if (pi [pos].IsIn)
- sb.Append ("in ");
+ /*
+ * Hashtable whose keys are character arrays with the same length
+ */
+ class CharArrayHashtable : Hashtable {
+ sealed class ArrComparer : IComparer {
+ private int len;
- if (pos == pi.Length - 1)
- sb.Append ("params ");
-
- sb.Append (TypeManager.CSharpName (ParameterType (pos)));
+ public ArrComparer (int len) {
+ this.len = len;
+ }
- return sb.ToString ();
-
+ public int Compare (object x, object y)
+ {
+ char[] a = (char[])x;
+ char[] b = (char[])y;
+
+ for (int i = 0; i < len; ++i)
+ if (a [i] != b [i])
+ return 1;
+ return 0;
+ }
}
- public Parameter.Modifier ParameterModifier (int pos)
+ private int len;
+
+ protected override int GetHash (Object key)
{
- if (pos >= pi.Length - 1)
- if (last_arg_is_params)
- return Parameter.Modifier.PARAMS;
+ char[] arr = (char[])key;
+ int h = 0;
- if (pi [pos].IsOut)
- return Parameter.Modifier.OUT;
-
- return Parameter.Modifier.NONE;
+ for (int i = 0; i < len; ++i)
+ h = (h << 5) - h + arr [i];
+
+ return h;
}
- public int Count {
- get {
- return pi.Length;
- }
+ public CharArrayHashtable (int len)
+ {
+ this.len = len;
+ comparer = new ArrComparer (len);
}
-
}
- public class InternalParameters : ParameterData {
- Type [] param_types;
+ struct Pair {
+ public object First;
+ public object Second;
- Parameters parameters;
-
- public InternalParameters (Type [] param_types, Parameters parameters)
+ public Pair (object f, object s)
+ {
+ First = f;
+ Second = s;
+ }
+ }
+
+ public class Accessors {
+ public Accessor get_or_add;
+ public Accessor set_or_remove;
+
+ // was 'set' declared before 'get'? was 'remove' declared before 'add'?
+ public bool declared_in_reverse;
+
+ public Accessors (Accessor get_or_add, Accessor set_or_remove)
{
- this.param_types = param_types;
- this.parameters = parameters;
+ this.get_or_add = get_or_add;
+ this.set_or_remove = set_or_remove;
}
+ }
- public InternalParameters (TypeContainer tc, Parameters parameters)
- : this (parameters.GetParameterInfo (tc), parameters)
+ ///
+ /// This is an arbitrarily seekable StreamReader wrapper.
+ ///
+ /// It uses a self-tuning buffer to cache the seekable data,
+ /// but if the seek is too far, it may read the underly
+ /// stream all over from the beginning.
+ ///
+ public class SeekableStreamReader
+ {
+ const int default_average_read_length = 1024;
+ const int buffer_read_length_spans = 3;
+
+ TextReader reader;
+ Stream stream;
+ Encoding encoding;
+
+ char[] buffer;
+ int average_read_length;
+ int buffer_start; // in chars
+ int char_count; // count buffer[] valid characters
+ int pos; // index into buffer[]
+
+ void ResetStream (int read_length_inc)
{
+ average_read_length += read_length_inc;
+ stream.Position = 0;
+ reader = new StreamReader (stream, encoding, true);
+ buffer = new char [average_read_length * buffer_read_length_spans];
+ buffer_start = char_count = pos = 0;
}
- public int Count {
- get {
- if (param_types == null)
- return 0;
+ public SeekableStreamReader (Stream stream, Encoding encoding)
+ {
+ this.stream = stream;
+ this.encoding = encoding;
+
+ ResetStream (default_average_read_length);
+ }
- return param_types.Length;
+ ///
+ /// This value corresponds to the current position in a stream of characters.
+ /// The StreamReader hides its manipulation of the underlying byte stream and all
+ /// character set/decoding issues. Thus, we cannot use this position to guess at
+ /// the corresponding position in the underlying byte stream even though there is
+ /// a correlation between them.
+ ///
+ public int Position {
+ get { return buffer_start + pos; }
+
+ set {
+ // If the lookahead was too small, re-read from the beginning. Increase the buffer size while we're at it
+ if (value < buffer_start)
+ ResetStream (average_read_length / 2);
+
+ while (value > buffer_start + char_count) {
+ pos = char_count;
+ if (!ReadBuffer ())
+ throw new InternalErrorException ("Seek beyond end of file: " + (buffer_start + char_count - value));
+ }
+
+ pos = value - buffer_start;
}
}
- public Type ParameterType (int pos)
+ private bool ReadBuffer ()
{
- if (param_types == null)
- return null;
+ int slack = buffer.Length - char_count;
+ if (slack <= average_read_length / 2) {
+ // shift the buffer to make room for average_read_length number of characters
+ int shift = average_read_length - slack;
+ Array.Copy (buffer, shift, buffer, 0, char_count - shift);
+ pos -= shift;
+ char_count -= shift;
+ buffer_start += shift;
+ slack += shift; // slack == average_read_length
+ }
- int len = parameters.FixedParameters.Length;
+ char_count += reader.Read (buffer, char_count, slack);
- if (pos < len)
- return parameters.FixedParameters [pos].ParameterType;
- else
- return parameters.ArrayParameter.ParameterType.GetElementType ();
+ return pos < char_count;
+ }
+ public int Peek ()
+ {
+ if ((pos >= char_count) && !ReadBuffer ())
+ return -1;
- //
- // Return the internal type.
- //
- //return p.ParameterType;
+ return buffer [pos];
}
- public string ParameterDesc (int pos)
+ public int Read ()
{
- string tmp = null;
- Parameter p;
+ if ((pos >= char_count) && !ReadBuffer ())
+ return -1;
- if (pos >= parameters.FixedParameters.Length)
- p = parameters.ArrayParameter;
- else
- p = parameters.FixedParameters [pos];
-
- if (p.ModFlags == Parameter.Modifier.REF)
- tmp = "ref ";
- else if (p.ModFlags == Parameter.Modifier.OUT)
- tmp = "out ";
- else if (p.ModFlags == Parameter.Modifier.PARAMS)
- tmp = "params ";
+ return buffer [pos++];
+ }
+ }
- Type t = ParameterType (pos);
+ public class DoubleHash {
+ const int DEFAULT_INITIAL_BUCKETS = 100;
- return tmp + TypeManager.CSharpName (t);
- }
+ public DoubleHash () : this (DEFAULT_INITIAL_BUCKETS) {}
- public Parameter.Modifier ParameterModifier (int pos)
+ public DoubleHash (int size)
{
- if (pos >= parameters.FixedParameters.Length)
- return parameters.ArrayParameter.ModFlags;
- else
- return parameters.FixedParameters [pos].ModFlags;
+ count = size;
+ buckets = new Entry [size];
}
-
- }
- class PtrHashtable : Hashtable {
- class PtrComparer : IComparer {
- public int Compare (object x, object y)
+ 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)
{
- if (x == y)
- return 0;
- else
- return 1;
+ this.key1 = key1;
+ this.key2 = key2;
+ this.hash = hash;
+ this.next = next;
+ this.value = value;
}
}
-
- public PtrHashtable ()
+
+ public bool Lookup (object a, object b, out object res)
{
- comparer = new PtrComparer ();
+ 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;
+ return true;
+ }
+ }
+ res = null;
+ return false;
+ }
+
+ 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;
+ while (e != null) {
+ int newLoc = e.hash % count;
+ Entry n = e.next;
+ e.next = newBuckets [newLoc];
+ newBuckets [newLoc] = e;
+ e = n;
+ }
+ }
+
+ buckets = newBuckets;
+ }
}
}
- //
- // Compares member infos based on their name and
- // also allows one argument to be a string
- //
- class MemberInfoCompare : IComparer {
+ class PartialMethodDefinitionInfo : MethodInfo
+ {
+ MethodOrOperator mc;
+ MethodAttributes attrs;
+
+ public PartialMethodDefinitionInfo (MethodOrOperator mc)
+ {
+ this.mc = mc;
+ if ((mc.ModFlags & Modifiers.STATIC) != 0)
+ attrs = MethodAttributes.Static;
+ }
+
+ public override MethodInfo GetBaseDefinition ()
+ {
+ throw new NotImplementedException ();
+ }
+
+ public override ICustomAttributeProvider ReturnTypeCustomAttributes
+ {
+ get { throw new NotImplementedException (); }
+ }
+
+ public override MethodAttributes Attributes
+ {
+ get { return attrs; }
+ }
+
+ public override MethodImplAttributes GetMethodImplementationFlags ()
+ {
+ throw new NotImplementedException ();
+ }
+
+ public override ParameterInfo [] GetParameters ()
+ {
+ throw new NotImplementedException ();
+ }
+
+ public override object Invoke (object obj, BindingFlags invokeAttr, Binder binder, object [] parameters, CultureInfo culture)
+ {
+ throw new NotImplementedException ();
+ }
+
+ public override RuntimeMethodHandle MethodHandle
+ {
+ get { throw new NotImplementedException (); }
+ }
+
+ public override Type DeclaringType
+ {
+ get { return mc.Parent.TypeBuilder; }
+ }
+
+ public override object [] GetCustomAttributes (Type attributeType, bool inherit)
+ {
+ throw new NotImplementedException ();
+ }
- public int Compare (object a, object b)
+ public override object [] GetCustomAttributes (bool inherit)
{
- if (a == null || b == null){
- Console.WriteLine ("Invalid information passed");
- throw new Exception ();
+ throw new NotImplementedException ();
+ }
+
+ public override Type ReturnType {
+ get {
+ return mc.MemberType;
}
-
- if (a is string)
- return String.Compare ((string) a, ((MemberInfo)b).Name);
+ }
- if (b is string)
- return String.Compare (((MemberInfo)a).Name, (string) b);
+ public override bool IsDefined (Type attributeType, bool inherit)
+ {
+ throw new NotImplementedException ();
+ }
- return String.Compare (((MemberInfo)a).Name, ((MemberInfo)b).Name);
+ public override string Name
+ {
+ get { return mc.Name; }
+ }
+
+ public override Type ReflectedType
+ {
+ get { throw new NotImplementedException (); }
}
}
- struct Pair {
- public object First;
- public object Second;
+ public class UnixUtils {
+ [System.Runtime.InteropServices.DllImport ("libc", EntryPoint="isatty")]
+ extern static int _isatty (int fd);
+
+ public static bool isatty (int fd)
+ {
+ try {
+ return _isatty (fd) == 1;
+ } catch {
+ return false;
+ }
+ }
+ }
+
+ ///
+ /// An exception used to terminate the compiler resolution phase and provide completions
+ ///
+ ///
+ /// This is thrown when we want to return the completions or
+ /// terminate the completion process by AST nodes used in
+ /// the completion process.
+ ///
+ public class CompletionResult : Exception {
+ string [] result;
+ string base_text;
- public Pair (object f, object s)
- {
- First = f;
- Second = s;
+ public CompletionResult (string base_text, string [] res)
+ {
+ if (base_text == null)
+ throw new ArgumentNullException ("base_text");
+ this.base_text = base_text;
+
+ result = res;
+ Array.Sort (result);
+ }
+
+ public string [] Result {
+ get {
+ return result;
}
+ }
+
+ public string BaseText {
+ get {
+ return base_text;
+ }
+ }
}
}