/// <summary>
/// Determine if an object is equivalent to this (handles all collections).
/// </summary>
/// <param name="o">The object to compare.</param>
/// <returns><c>true</c> if the object is equivalent; <c>false</c> otherwise.</returns>
/// <remarks>
/// In Java Rev 1215, Added equiv. Same as the definition in Equals, as in they took out the hashcode comparison.
/// Different, as in Util.Equal above became Util.equals. and below it is Util.equiv.
/// </remarks>
public bool equiv(object obj)
{
//if(!(obj instanceof Map))
// return false;
//Map m = (Map) obj;
IDictionary d = obj as IDictionary;
if (d == null)
{
return(false);
}
// Java had the following.
// This works on other APersistentMap implementations, but not on
// arbitrary dictionaries.
//if (d.Count != this.Count || d.GetHashCode() != this.GetHashCode())
// return false;
if (d.Count != this.Count)
{
return(false);
}
for (ISeq s = seq(); s != null; s = s.next())
{
IMapEntry me = (IMapEntry)s.first();
bool found = d.Contains(me.key());
if (!found || !Util.equiv(me.val(), d[me.key()]))
{
return(false);
}
}
return(true);
}
/// <summary>
/// Compare two keys for equality.
/// </summary>
/// <param name="k1">The first key to compare.</param>
/// <param name="k2">The second key to compare.</param>
/// <returns></returns>
/// <remarks>Handles nulls properly.</remarks>
static bool EqualKey(object k1, object k2)
{
if (k1 is Keyword)
{
return(k1 == k2);
}
return(Util.equiv(k1, k2));
}
static bool doEquiv(IPersistentVector v, object obj)
{
if (obj is IPersistentVector ipv)
{
if (ipv.count() != v.count())
{
return(false);
}
for (int i = 0; i < v.count(); i++)
{
if (!Util.equiv(v.nth(i), ipv.nth(i)))
{
return(false);
}
}
return(true);
}
if (obj is IList ilist)
{
if (ilist.Count != v.count()) // THis test in the JVM code can't be right: || ma.GetHashCode() != v.GetHashCode())
{
return(false);
}
for (int i = 0; i < v.count(); i++)
{
if (!Util.equiv(v.nth(i), ilist[i]))
{
return(false);
}
}
return(true);
}
if (!(obj is Sequential))
{
return(false);
}
ISeq ms = RT.seq(obj);
for (int i = 0; i < v.count(); i++, ms = ms.next())
{
if (ms == null || !Util.equiv(v.nth(i), ms.first()))
{
return(false);
}
}
if (ms != null)
{
return(false);
}
return(true);
}
public bool Contains(object value)
{
for (ISeq s = seq(); s != null; s = s.next())
{
if (Util.equiv(s.first(), value))
{
return(true);
}
}
return(false);
}
public int IndexOf(object value)
{
ISeq s = seq();
for (int i = 0; s != null; s = s.next(), i++)
{
if (Util.equiv(s.first(), value))
{
return(i);
}
}
return(-1);
}
public bool equiv(object o)
{
if (!(o is Sequential))
{
return(false);
}
ISeq ms = RT.seq(o);
for (ISeq s = seq(); s != null; s = s.next(), ms = ms.next())
{
if (ms == null || !Util.equiv(s.first(), ms.first()))
{
return(false);
}
}
return(ms.next() == null);
}
static bool doEquiv(IPersistentVector v, object obj)
{
if (obj is IList || obj is IPersistentVector)
{
ICollection ma = (ICollection)obj;
if (ma.Count != v.count())
{
return(false);
}
IEnumerator ima = ma.GetEnumerator();
foreach (object ov in ((IList)v))
{
ima.MoveNext();
if (!Util.equiv(ov, ima.Current))
{
return(false);
}
}
return(true);
}
else
{
if (!(obj is Sequential))
{
return(false);
}
ISeq ms = RT.seq(obj);
for (int i = 0; i < v.count(); i++, ms = ms.next())
{
if (ms == null || !Util.equiv(v.nth(i), ms.first()))
{
return(false);
}
}
if (ms != null)
{
return(false);
}
}
return(true);
}
/// <summary>
/// Determine if an object is equivalent to this (handles all collections).
/// </summary>
/// <param name="o">The object to compare.</param>
/// <returns><c>true</c> if the object is equivalent; <c>false</c> otherwise.</returns>
public bool equiv(object o)
{
if (!(o is Sequential || o is IList))
{
return(false);
}
ISeq ms = RT.seq(o);
for (ISeq s = seq(); s != null; s = s.next(), ms = ms.next())
{
if (ms == null || !Util.equiv(s.first(), ms.first()))
{
return(false);
}
}
return(ms == null); // hit end of sequence on both sequences
}
public override bool Equals(object obj)
{
if (this == obj)
{
return(true);
}
if (!(obj is Sequential || obj is IList))
{
return(false);
}
ISeq ms = RT.seq(obj);
for (ISeq s = seq(); s != null; s = s.next(), ms = ms.next())
{
if (ms == null || !Util.equiv(s.first(), ms.first()))
{
return(false);
}
}
return(ms == null);
}
/// <summary>
/// Compare two keys for equality.
/// </summary>
/// <param name="k1">The first key to compare.</param>
/// <param name="k2">The second key to compare.</param>
/// <returns></returns>
/// <remarks>Handles nulls properly.</remarks>
static bool EqualKey(object k1, object k2)
{
return(Util.equiv(k1, k2));
}