public static Var intern(Namespace ns, Symbol sym)
{
return ns.intern(sym);
}
public static Var intern(Namespace ns, Symbol sym, object root)
{
return intern(ns, sym, root, true);
}
public static Var intern(Namespace ns, Symbol sym, object root, bool replaceRoot)
{
Var dvout = ns.intern(sym);
if (!dvout.hasRoot() || replaceRoot)
dvout.bindRoot(root);
return dvout;
}
/// <summary>
/// Construct a var in a given namespace with a given name.
/// </summary>
/// <param name="ns">The namespace.</param>
/// <param name="sym">The var.</param>
internal Var(Namespace ns, Symbol sym)
{
_ns = ns;
_sym = sym;
_threadBound = new AtomicBoolean(false);
_root = new Unbound(this);
setMeta(PersistentHashMap.EMPTY);
}
/// <summary>
/// Construct a var in a given namespace with a given name and root value.
/// </summary>
/// <param name="ns">The namespace.</param>
/// <param name="sym">The var.</param>
/// <param name="root">The root value.</param>
Var(Namespace ns, Symbol sym, object root)
: this(ns, sym)
{
_root = root;
++_rev;
}
public static Namespace namespaceFor(Namespace inns, Symbol sym)
{
//note, presumes non-nil sym.ns
// first check against currentNS' aliases...
Symbol nsSym = Symbol.create(sym.Namespace);
Namespace ns = inns.LookupAlias(nsSym);
if (ns == null)
{
// ...otherwise check the Namespaces map.
ns = Namespace.find(nsSym);
}
return ns;
}
VarSerializationHelper(SerializationInfo info, StreamingContext context)
{
_ns = (Namespace)info.GetValue("_ns", typeof(Namespace));
_sym = (Symbol)info.GetValue("_sym", typeof(Symbol));
}
/// <summary>
/// Find or create a namespace named by the symbol.
/// </summary>
/// <param name="name">The symbol naming the namespace.</param>
/// <returns>An existing or new namespace</returns>
public static Namespace findOrCreate(Symbol name)
{
Namespace ns = _namespaces.Get(name);
if (ns != null)
return ns;
Namespace newns = new Namespace(name);
ns = _namespaces.PutIfAbsent(name, newns);
return ns == null ? newns : ns;
}
/// <summary>
/// Add an alias for a namespace.
/// </summary>
/// <param name="alias">The alias for the namespace.</param>
/// <param name="ns">The namespace being aliased.</param>
/// <remarks>Lowercase name for core.clj compatibility</remarks>
public void addAlias(Symbol alias, Namespace ns)
{
if (alias == null || ns == null)
throw new NullReferenceException("Expecting Symbol + Namespace");
IPersistentMap map = Aliases;
// race condition
while (!map.containsKey(alias))
{
IPersistentMap newMap = map.assoc(alias, ns);
_aliases.CompareAndSet(map, newMap);
map = Aliases;
}
// you can rebind an alias, but only to the initially-aliased namespace
if (!map.valAt(alias).Equals(ns))
throw new InvalidOperationException(String.Format("Alias {0} already exists in namespace {1}, aliasing {2}",
alias, _name, map.valAt(alias)));
}
public static Var intern(Symbol nsName, Symbol sym)
{
Namespace ns = Namespace.findOrCreate(nsName);
return(intern(ns, sym));
}
/// <summary>
/// Construct a var in a given namespace with a given name.
/// </summary>
/// <param name="ns">The namespace.</param>
/// <param name="sym">The var.</param>
internal Var(Namespace ns, Symbol sym)
{
_ns = ns;
_sym = sym;
_count = new AtomicInteger();
_root = _rootUnboundValue;
setMeta(PersistentHashMap.EMPTY);
}
public static Var intern(Namespace ns, Symbol sym, object root)
{
return(intern(ns, sym, root, true));
}
/// <summary>
/// Construct a var in a given namespace with a given name and root value.
/// </summary>
/// <param name="ns">The namespace.</param>
/// <param name="sym">The var.</param>
/// <param name="root">The root value.</param>
Var(Namespace ns, Symbol sym, object root)
: this(ns, sym)
{
_root = root;
++_rev;
}
public static Var intern(Namespace ns, Symbol sym)
{
return(ns.intern(sym));
}
private static object ResolveIn(Namespace n, Symbol symbol, bool allowPrivate)
{
// note: ns-qualified vars must already exist
if (symbol.Namespace != null)
{
Namespace ns = NamespaceFor(n, symbol);
if (ns == null)
throw new Exception("No such namespace: " + symbol.Namespace);
Var v = ns.FindInternedVar(Symbol.create(symbol.Name));
if (v == null)
throw new Exception("No such var: " + symbol);
else if (v.Namespace != CurrentNamespace && !v.IsPublic && !allowPrivate)
throw new InvalidOperationException(string.Format("var: {0} is not public", symbol));
return v;
}
else if (symbol.Name.IndexOf('.') > 0 || symbol.Name[0] == '[')
return RT.classForName(symbol.Name);
else if (symbol.Equals(NS))
return RT.NS_VAR;
else if (symbol.Equals(IN_NS))
return RT.IN_NS_VAR;
else
{
object o = n.GetMapping(symbol);
if (o == null)
{
if (RT.booleanCast(RT.ALLOW_UNRESOLVED_VARS.deref()))
return symbol;
else
throw new Exception(string.Format("Unable to resolve symbol: {0} in this context", symbol));
}
return o;
}
}
private static object ResolveIn(Namespace n, Symbol symbol, bool allowPrivate)
{
// note: ns-qualified vars must already exist
if (symbol.Namespace != null)
{
Namespace ns = namespaceFor(n, symbol);
if (ns == null)
throw new InvalidOperationException("No such namespace: " + symbol.Namespace);
Var v = ns.FindInternedVar(Symbol.intern(symbol.Name));
if (v == null)
throw new InvalidOperationException("No such var: " + symbol);
else if (v.Namespace != CurrentNamespace && !v.isPublic && !allowPrivate)
throw new InvalidOperationException(string.Format("var: {0} is not public", symbol));
return v;
}
else if (symbol.Name.IndexOf('.') > 0 || symbol.Name[symbol.Name.Length - 1] == ']')
return RT.classForNameE(symbol.Name);
else if (symbol.Equals(NsSym))
return RT.NSVar;
else if (symbol.Equals(InNsSym))
return RT.InNSVar;
else
{
if (Util.equals(symbol, CompileStubSymVar.get()))
return CompileStubClassVar.get();
object o = n.GetMapping(symbol);
if (o == null)
{
if (RT.booleanCast(RT.AllowUnresolvedVarsVar.deref()))
return symbol;
else
throw new InvalidOperationException(string.Format("Unable to resolve symbol: {0} in this context", symbol));
}
return o;
}
}
// core.clj compatibility
public static object maybeResolveIn(Namespace n, Symbol symbol)
{
// note: ns-qualified vars must already exist
if (symbol.Namespace != null)
{
Namespace ns = NamespaceFor(n, symbol);
if (ns == null)
return null;
Var v = ns.FindInternedVar(Symbol.create(symbol.Name));
if (v == null)
return null;
return v;
}
else if (symbol.Name.IndexOf('.') > 0 || symbol.Name[0] == '[')
return RT.classForName(symbol.Name);
else if (symbol.Equals(NS))
return RT.NS_VAR;
else if (symbol.Equals(IN_NS))
return RT.IN_NS_VAR;
else
{
object o = n.GetMapping(symbol);
return o;
}
}
public static object maybeResolveIn(Namespace n, Symbol symbol)
{
// note: ns-qualified vars must already exist
if (symbol.Namespace != null)
{
Namespace ns = namespaceFor(n, symbol);
if (ns == null)
return null;
Var v = ns.FindInternedVar(Symbol.intern(symbol.Name));
if (v == null)
return null;
return v;
}
else if (symbol.Name.IndexOf('.') > 0 && !symbol.Name.EndsWith(".")
|| symbol.Name[symbol.Name.Length - 1] == ']') /// JAVA: symbol.Name[0] == '[')
return RT.classForNameE(symbol.Name);
else if (symbol.Equals(NsSym))
return RT.NSVar;
else if (symbol.Equals(InNsSym))
return RT.InNSVar;
else
{
object o = n.GetMapping(symbol);
return o;
}
}
public static Namespace NamespaceFor(Namespace n, Symbol symbol)
{
// Note: presumes non-nil sym.ns
// first check against CurrentNamespace's aliases
Symbol nsSym = Symbol.create(symbol.Namespace);
Namespace ns = n.LookupAlias(nsSym);
if (ns == null)
// otherwise, check the namespaces map
ns = Namespace.find(nsSym);
return ns;
}
#pragma warning restore 649
#region IObjectReference Members
public object GetRealObject(StreamingContext context)
{
return(Namespace.findOrCreate(_name));
}
