X-Git-Url: http://wien.tomnetworks.com/gitweb/?a=blobdiff_plain;f=mcs%2Fmcs%2Fsupport.cs;h=b31507195d77b7604c1adb14513bfdf3d6566d64;hb=0c2bb8157f43826a57c39b863a1d67e3aef1b7b2;hp=45fd159bf766d121da4aa220b2ec2a80ba4ccade;hpb=8a1b556c599e7ec54147e7494dd39f226f2ce7cf;p=mono.git
diff --git a/mcs/mcs/support.cs b/mcs/mcs/support.cs
index 45fd159bf76..b31507195d7 100644
--- a/mcs/mcs/support.cs
+++ b/mcs/mcs/support.cs
@@ -5,7 +5,8 @@
// 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;
@@ -18,276 +19,59 @@ using System.Globalization;
namespace Mono.CSharp {
- public interface ParameterData {
- Type ParameterType (int pos);
- int Count { get; }
- bool HasParams { get; }
- string ParameterName (int pos);
- string ParameterDesc (int pos);
- Parameter.Modifier ParameterModifier (int pos);
- string GetSignatureForError ();
- }
-
- public class ReflectionParameters : ParameterData {
- ParameterInfo [] pi;
- bool last_arg_is_params = false;
- bool is_varargs = false;
-
- public ReflectionParameters (MethodBase mb)
+ class PtrHashtable : Hashtable {
+ sealed class PtrComparer : IComparer
+#if NET_2_0
+ , IEqualityComparer
+#endif
{
- object [] attrs;
-
- ParameterInfo [] pi = mb.GetParameters ();
- is_varargs = (mb.CallingConvention & CallingConventions.VarArgs) != 0;
-
- this.pi = pi;
- int count = pi.Length-1;
-
- if (count >= 0) {
- attrs = pi [count].GetCustomAttributes (TypeManager.param_array_type, true);
+ private PtrComparer () {}
- if (attrs == null)
- return;
-
- if (attrs.Length == 0)
- return;
+ public static PtrComparer Instance = new PtrComparer ();
- last_arg_is_params = true;
- }
- }
-
- public string GetSignatureForError ()
- {
- StringBuilder sb = new StringBuilder ("(");
- for (int i = 0; i < pi.Length; ++i) {
- if (i != 0)
- sb.Append (", ");
- sb.Append (ParameterDesc (i));
+ public int Compare (object x, object y)
+ {
+ if (x == y)
+ return 0;
+ else
+ return 1;
}
- sb.Append (')');
- return sb.ToString ();
- }
-
- 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)
- return TypeManager.runtime_argument_handle_type;
- else {
- Type t = pi [pos].ParameterType;
-
- return t;
+#if NET_2_0
+ bool IEqualityComparer.Equals (object x, object y)
+ {
+ return x == y;
}
- }
-
- 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)
- return "__arglist";
- else
- return pi [pos].Name;
- }
-
- public string ParameterDesc (int pos)
- {
- if (is_varargs && pos >= pi.Length)
- return "";
-
- StringBuilder sb = new StringBuilder ();
-
- if (pi [pos].IsIn)
- sb.Append ("in ");
-
- Type partype = ParameterType (pos);
- if (partype.IsByRef){
- partype = TypeManager.GetElementType (partype);
- if (pi [pos].IsOut)
- sb.Append ("out ");
- else
- sb.Append ("ref ");
- }
-
- if (pos >= pi.Length - 1 && last_arg_is_params)
- 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)
- return Parameter.Modifier.PARAMS;
- else if (is_varargs && pos >= pi.Length)
- return Parameter.Modifier.ARGLIST;
-
- Type t = pi [pos].ParameterType;
- if (t.IsByRef){
- if ((pi [pos].Attributes & (ParameterAttributes.Out|ParameterAttributes.In)) == ParameterAttributes.Out)
- return Parameter.Modifier.ISBYREF | Parameter.Modifier.OUT;
- else
- return Parameter.Modifier.ISBYREF | Parameter.Modifier.REF;
+ int IEqualityComparer.GetHashCode (object obj)
+ {
+ return obj.GetHashCode ();
}
+#endif
- return Parameter.Modifier.NONE;
- }
-
- public int Count {
- get {
- return is_varargs ? pi.Length + 1 : pi.Length;
- }
- }
-
- public bool HasParams {
- get {
- return this.last_arg_is_params;
- }
}
-
- }
- public class InternalParameters : ParameterData {
- Type [] param_types;
- bool has_varargs;
- int count;
-
- public readonly Parameters Parameters;
-
- public InternalParameters (Type [] param_types, Parameters parameters)
+#if NET_2_0
+ public PtrHashtable () : base (PtrComparer.Instance) {}
+#else
+ public PtrHashtable ()
{
- this.param_types = param_types;
- this.Parameters = parameters;
-
- has_varargs = parameters.HasArglist;
-
- if (param_types == null)
- count = 0;
- else
- count = param_types.Length;
- }
-
- public int Count {
- get {
- return has_varargs ? count + 1 : count;
- }
- }
-
- public bool HasParams {
- get {
- return Parameters.ArrayParameter != null;
- }
- }
-
- Parameter GetParameter (int pos)
- {
- Parameter [] fixed_pars = Parameters.FixedParameters;
- if (fixed_pars != null){
- int len = fixed_pars.Length;
- if (pos < len)
- return Parameters.FixedParameters [pos];
- }
-
- return Parameters.ArrayParameter;
- }
-
- public string GetSignatureForError ()
- {
- StringBuilder sb = new StringBuilder ("(");
- for (int i = 0; i < count; ++i) {
- if (i != 0)
- sb.Append (", ");
- sb.Append (ParameterDesc (i));
- }
- sb.Append (')');
- return sb.ToString ();
- }
-
- public Type ParameterType (int pos)
- {
- if (has_varargs && pos >= count)
- return TypeManager.runtime_argument_handle_type;
-
- if (param_types == null)
- return null;
-
- return GetParameter (pos).ExternalType ();
- }
-
-
- public string ParameterName (int pos)
- {
- if (has_varargs && pos >= count)
- return "__arglist";
-
- return GetParameter (pos).Name;
- }
-
- public string ParameterDesc (int pos)
- {
- if (has_varargs && pos >= count)
- return "__arglist";
-
- Type t = ParameterType (pos);
- return (ModifierDesc (pos) + " " + TypeManager.CSharpName (t).Replace ("&", "")).TrimStart ();
- }
-
- public string ModifierDesc (int pos)
- {
- Parameter p = GetParameter (pos);
-
- //
- // We need to and for REF/OUT, because if either is set the
- // extra flag ISBYREF will be set as well
- //
- if ((p.ModFlags & Parameter.Modifier.REF) != 0)
- return "ref";
- if ((p.ModFlags & Parameter.Modifier.OUT) != 0)
- return "out";
- if (p.ModFlags == Parameter.Modifier.PARAMS)
- return "params";
-
- return "";
+ comparer = PtrComparer.Instance;
}
+#endif
- public Parameter.Modifier ParameterModifier (int pos)
+#if MS_COMPATIBLE
+ //
+ // Workaround System.InvalidOperationException for enums
+ //
+ protected override int GetHash (object key)
{
- if (has_varargs && pos >= count)
- return Parameter.Modifier.ARGLIST;
+ TypeBuilder tb = key as TypeBuilder;
+ if (tb != null && tb.BaseType == TypeManager.enum_type && tb.BaseType != null)
+ key = tb.BaseType;
- Parameter.Modifier mod = GetParameter (pos).ModFlags;
-
- if ((mod & (Parameter.Modifier.REF | Parameter.Modifier.OUT)) != 0)
- mod |= Parameter.Modifier.ISBYREF;
-
- return mod;
- }
-
- }
-
- 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 0;
- else
- return 1;
- }
- }
-
- public PtrHashtable ()
- {
- comparer = PtrComparer.Instance;
+ return base.GetHash (key);
}
+#endif
}
/*
@@ -331,12 +115,12 @@ namespace Mono.CSharp {
this.len = len;
comparer = new ArrComparer (len);
}
- }
+ }
struct Pair {
public object First;
public object Second;
-
+
public Pair (object f, object s)
{
First = f;
@@ -344,86 +128,100 @@ namespace Mono.CSharp {
}
}
+ 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.get_or_add = get_or_add;
+ this.set_or_remove = set_or_remove;
+ }
+ }
+
///
- /// This is a wrapper around StreamReader which is seekable.
+ /// 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
{
- public SeekableStreamReader (StreamReader reader)
- {
- this.reader = reader;
- this.buffer = new char [DefaultCacheSize];
-
- // Compute the preamble size
-
- // Let the StreamWriter autodetect the encoder
- reader.Peek ();
-
- Encoding enc = reader.CurrentEncoding;
- preamble_size = (int) reader.BaseStream.Position;
- }
+ const int default_average_read_length = 1024;
+ const int buffer_read_length_spans = 3;
- public SeekableStreamReader (Stream stream, Encoding encoding)
- : this (new StreamReader (stream, encoding, true))
- { }
-
- StreamReader reader;
-
- private const int DefaultCacheSize = 1024;
+ TextReader reader;
+ Stream stream;
+ Encoding encoding;
char[] buffer;
- int buffer_start; // in bytes
- int buffer_size; // in bytes
+ int average_read_length;
+ int buffer_start; // in chars
int char_count; // count buffer[] valid characters
int pos; // index into buffer[]
- int preamble_size;
+
+ 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 SeekableStreamReader (Stream stream, Encoding encoding)
+ {
+ this.stream = stream;
+ this.encoding = encoding;
+
+ ResetStream (default_average_read_length);
+ }
///
- /// The difference to the StreamReader's BaseStream.Position is that this one is reliable; ie. it
- // always reports the correct position and if it's modified, it also takes care of the buffered data.
+ /// 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 + reader.CurrentEncoding.GetByteCount (buffer, 0, pos);
- }
+ get { return buffer_start + pos; }
set {
- // This one is easy: we're modifying the position within our current
- // buffer.
- if ((value >= buffer_start) && (value < buffer_start + buffer_size)) {
- int byte_offset = value - buffer_start;
-
- // If we have an uni-byte encoding, 'pos' will be the same as
- // 'byte_offset'. If we have a multi-byte encoding, 'byte_offset'
- // can be bigger than the desired value of 'pos', but not smaller.
- // (IOW, the number of characters <= number of bytes)
- //
- // So, we start pos off at byte_offset, and fix it up.
- pos = byte_offset;
- if (pos > char_count)
- pos = char_count;
- while (reader.CurrentEncoding.GetByteCount (buffer, 0, pos) > byte_offset)
- --pos;
- return;
+ // 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));
}
- if (value == 0) // Skip preamble
- value = preamble_size;
-
- // Ok, now we need to seek.
- reader.DiscardBufferedData ();
- reader.BaseStream.Position = buffer_start = value;
- char_count = buffer_size = pos = 0;
+ pos = value - buffer_start;
}
}
private bool ReadBuffer ()
{
- pos = 0;
- buffer_start += buffer_size;
- char_count = reader.Read (buffer, 0, buffer.Length);
- buffer_size = reader.CurrentEncoding.GetByteCount (buffer, 0, char_count);
- return buffer_size > 0;
+ 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
+ }
+
+ char_count += reader.Read (buffer, char_count, slack);
+
+ return pos < char_count;
}
public int Peek ()
@@ -445,26 +243,26 @@ namespace Mono.CSharp {
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;
@@ -478,7 +276,7 @@ namespace Mono.CSharp {
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;
@@ -492,22 +290,22 @@ namespace Mono.CSharp {
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;
@@ -524,4 +322,137 @@ namespace Mono.CSharp {
}
}
}
+
+ 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 override object [] GetCustomAttributes (bool inherit)
+ {
+ throw new NotImplementedException ();
+ }
+
+ public override Type ReturnType {
+ get {
+ return mc.MemberType;
+ }
+ }
+
+ public override bool IsDefined (Type attributeType, bool inherit)
+ {
+ throw new NotImplementedException ();
+ }
+
+ public override string Name
+ {
+ get { return mc.Name; }
+ }
+
+ public override Type ReflectedType
+ {
+ get { throw new NotImplementedException (); }
+ }
+ }
+
+ 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 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;
+ }
+ }
+ }
}