//////////////////////////////////////////////////////////////////////////
// Constructor
//////////////////////////////////////////////////////////////////////////
public Slot(Type parent, string name, int flags, Facets facets, int lineNum)
{
this.m_parent = parent;
this.m_name = name;
this.m_qname = parent == null ? name : parent.qname() + "." + name;
this.m_flags = flags;
this.m_facets = facets;
this.m_lineNum = lineNum;
}
public static List findAll(Type t)
{
string qname = t.qname();
List list = new List(Sys.ServiceType);
lock (m_lock)
{
Node node = (Node)byType[qname];
while (node != null)
{
list.add(node.service);
node = node.next;
}
}
return list.ro();
}
void putCache(File file, Type t)
{
CachedScript c = new CachedScript();
c.modified = file.modified();
c.size = file.size();
c.typeName = t.qname();
lock (m_cache) { m_cache[cacheKey(file)] = c; }
}
public static Service find(Type t, bool check)
{
return find(t.qname(), check);
}
public static Service find(Type t)
{
return find(t.qname(), true);
}
private void findMixins(Type t, Hashtable acc)
{
// if mixin I haven't seen add to accumulator
string qname = t.qname();
if (t.isMixin() && acc[qname] == null)
acc[qname] = t;
// recurse
for (int i=0; i<t.mixins().sz(); ++i)
findMixins((Type)t.mixins().get(i), acc);
}
void complexAdd(Type t, object obj, Method addMethod, object val, int line)
{
try
{
addMethod.invoke(obj, new object[] { val });
}
catch (System.Exception ex)
{
throw err("Cannot call " + t.qname() + ".add: " + ex, line, ex);
}
}
protected static Enum doFromStr(Type t, string name, bool check)
{
// the compiler marks the value fields with the Enum flag
Slot slot = t.slot(name, false);
if (slot != null && (slot.m_flags & FConst.Enum) != 0)
{
try
{
return (Enum)((Field)slot).get(null);
}
catch (System.Exception)
{
}
}
if (!check) return null;
throw ParseErr.make(t.qname(), name).val;
}
/// <summary>
/// simple := type "(" str ")"
/// </summary>
private object readSimple(int line, Type t)
{
// parse: type(str)
consume(Token.LPAREN, "Expected ( in simple");
string str = consumeStr("Expected string literal for simple");
consume(Token.RPAREN, "Expected ) in simple");
// lookup the fromStr method
t.finish();
Method m = t.method("fromStr", false);
if (m == null)
throw err("Missing method: " + t.qname() + ".fromStr", line);
// invoke parse method to translate into instance
try
{
return m.invoke(null, new object[] { str });
}
catch (ParseErr.Val e)
{
throw ParseErr.make(e.err().msg() + " [Line " + line + "]").val;
}
catch (System.Exception e)
{
throw ParseErr.make(e.ToString() + " [Line " + line + "]", e).val;
}
}
void readComplexSet(Type t, int line, string name, Map toSet)
{
// resolve field
Field field = t.field(name, false);
if (field == null) throw err("Field not found: " + t.qname() + "." + name, line);
// parse value
object val = readObj(field, null, false);
try
{
// if const field, then make val immutable
if (field.isConst()) val = OpUtil.toImmutable(val);
}
catch (System.Exception ex)
{
throw err("Cannot make object const for " + field.qname() + ": " + ex, line, ex);
}
// add to map
toSet.set(field, val);
}
//////////////////////////////////////////////////////////////////////////
// Complex
//////////////////////////////////////////////////////////////////////////
/// <summary>
/// complex := type [fields]
/// fields := "{" field (eos field)* "}"
/// field := name "=" obj
/// </summary>
private object readComplex(int line, Type t, bool root)
{
Map toSet = new Map(Sys.FieldType, Sys.ObjType.toNullable());
List toAdd = new List(Sys.ObjType.toNullable());
// read fields/collection into toSet/toAdd
readComplexFields(t, toSet, toAdd);
// get the make constructor
Method makeCtor = t.method("make", false);
if (makeCtor == null || !makeCtor.isPublic())
throw err("Missing public constructor " + t.qname() + ".make", line);
// get argument lists
List args = null;
if (root && options != null)
args = (List)options.get("makeArgs");
// construct object
object obj = null;
bool setAfterCtor = true;
try
{
// if first parameter is an function then pass toSet
// as an it-block for setting the fields
Param p = (Param)makeCtor.@params().first();
if (args == null && p != null && p.type().fits(Sys.FuncType))
{
args = new List(Sys.ObjType).add(Field.makeSetFunc(toSet));
setAfterCtor = false;
}
// invoke make to construct object
obj = makeCtor.callList(args);
}
catch (System.Exception e)
{
throw err("Cannot make " + t + ": " + e, line, e);
}
// set fields (if not passed to ctor as it-block)
if (setAfterCtor && toSet.size() > 0)
{
IDictionaryEnumerator en = toSet.pairsIterator();
while (en.MoveNext())
{
complexSet(obj, (Field)en.Key, en.Value, line);
}
}
// add
if (toAdd.size() > 0)
{
Method addMethod = t.method("add", false);
if (addMethod == null) throw err("Method not found: " + t.qname() + ".add", line);
for (int i=0; i<toAdd.sz(); ++i)
complexAdd(t, obj, addMethod, toAdd.get(i), line);
}
return obj;
}
public Facet get(Type type, bool check)
{
object val = m_map[type];
if (val is Facet) return (Facet)val;
if (val is string)
{
Facet f = decode(type, (string)val);
m_map[type] = f;
return f;
}
if (check) throw UnknownFacetErr.make(type.qname()).val;
return null;
}
//////////////////////////////////////////////////////////////////////////
// Collection (@collection)
//////////////////////////////////////////////////////////////////////////
private bool writeCollectionItems(Type type, object obj, bool first)
{
// lookup each method
Method m = type.method("each", false);
if (m == null) throw IOErr.make("Missing " + type.qname() + ".each").val;
// call each(it)
EachIterator it = new EachIterator(this, first);
m.invoke(obj, new object[] { it });
return it.first;
}
