private static Type ConsumeType(StringParser sp)
{
sp.SkipWS();
sp.ConsumeChar('[');
var assmName = sp.ConsumeUntilChar(']');
sp.ConsumeChar(']');
var typeName = sp.ConsumeUntilChar('<');
var args = default(List<Type>);
if (sp.TryConsumeChar('<'))
{
args = new List<Type>();
while (true)
{
if (sp.Failed)
break;
args.Add(ConsumeType(sp));
sp.SkipWS();
if (sp.TryConsumeChar('>'))
break;
sp.ConsumeChar(',');
}
}
if (sp.Failed)
throw new InvalidOperationException("syntax error in qualified type name");
var assm = default(Assembly);
try
{
assm = Assembly.Load(assmName);
}
catch (FileNotFoundException)
{
throw new InvalidOperationException("no such assembly");
}
var hkType = assm.GetType(typeName);
if (hkType == null)
throw new InvalidOperationException("no such type");
if (args == null)
return hkType;
else
{
try
{
return hkType.MakeGenericType(args.ToArray());
}
catch (InvalidOperationException)
{
throw new InvalidOperationException("type is not higher-kinded");
}
catch (ArgumentException)
{
throw new InvalidOperationException("mismatched type arity");
}
}
}
private object[] ConsumeArgs(List<Type> argTypes, string args)
{
var argObjects = new object[argTypes.Count];
var sp = new StringParser(args);
sp.SkipWS();
sp.ConsumeChar('(');
for (var i = 0; i < argTypes.Count; i++)
{
if (i > 0)
{
sp.SkipWS();
sp.ConsumeChar(',');
}
sp.SkipWS();
if (sp.Failed)
throw new InvalidOperationException("syntax error in arguments");
var ops = FindInteropOps(argTypes[i]);
argObjects[i] = ops.Import(sp);
}
sp.ConsumeChar(')');
return argObjects;
}
private object Eval
(Action<StringBuilder, Dictionary<Type, int>> expr, Func<StringParser, object> import)
{
var sb1 = new StringBuilder();
var toBeLoaded = new Dictionary<Type, int>();
sb1.Append("(function(){try{");
if (import != null)
{
sb1.Append("return ");
expr(sb1, toBeLoaded);
sb1.Append(';');
}
else
{
expr(sb1, toBeLoaded);
sb1.Append("return \"undefined\"");
}
sb1.Append("}catch(e){return ");
sb1.Append(database.RootExpression);
sb1.Append(".ImportException(");
sb1.Append(TypeIndex(toBeLoaded, typeof(JSObject)));
sb1.Append(",e);}})()");
var sb2 = default(StringBuilder);
if (toBeLoaded.Count > 0)
{
sb2 = new StringBuilder();
AppendLoadRequiredTypes(sb2, toBeLoaded);
}
var res = default(string);
bridge.InJavaScriptContext
(() =>
{
if (sb2 != null)
{
Log("! " + sb2.ToString());
bridge.EvalStatementString(sb2.ToString());
}
Log("> " + sb1.ToString());
res = bridge.EvalExpressionString(sb1.ToString());
Log("< " + res);
});
var sp = new StringParser(res);
sp.SkipWS();
if (sp.TryConsumeChar('~'))
throw MakeInvalidCastException();
else if (sp.TryConsumeChar('!'))
{
var ops = FindInteropOps(typeof(Exception));
throw (Exception)ops.Import(sp);
}
else if (sp.TryConsumeChar('#'))
{
var ops = FindInteropOps(typeof (JSObject));
var underlyingException = (JSObject)ops.Import(sp);
throw MakeJSException(underlyingException);
}
else if (import != null)
return import(sp);
else if (sp.TryConsumeLit("undefined"))
return null;
else
throw new InvalidOperationException("unexpected result of statement execution");
}
public override JSContext ContextForUnmanagedInstance(StringParser sp)
{
sp.SkipWS();
if (sp.TryConsumeLit("null"))
throw new InvalidOperationException("constructor returned null");
else if (sp.TryConsumeLit("undefined"))
throw new InvalidOperationException("constructor returned undefined");
else
{
var id = sp.ConsumeId();
sp.SkipWS();
var qnm = default(string);
if (sp.TryConsumeLit("null"))
qnm = null;
else
qnm = sp.ConsumeEscapedString();
if (sp.Failed)
throw new InvalidOperationException("invalid response");
if (qnm != null)
{
var rttype = QualifiedNameToType(qnm);
if (!type.IsAssignableFrom(rttype))
throw outer.MakeInvalidCastException();
}
return new JSContext(outer, type, null, id);
}
}
public override object BindCreatedInstance(StringParser sp, object obj)
{
if (outer.objectToDisconnect.ContainsKey(obj))
throw new InvalidOperationException("object already associated with unmanaged instance");
sp.SkipWS();
var id = sp.ConsumeId();
if (sp.Failed)
throw new InvalidOperationException("invalid response");
outer.proxyToIdCache.Add(obj, id);
outer.objectToDisconnect.Add(obj, () => Disconnect(id, obj));
return obj;
}
public abstract object BindCreatedInstance(StringParser sp, object obj);
// XREF1451
public override object Import(StringParser sp)
{
sp.SkipWS();
if (sp.TryConsumeLit("null"))
return null;
else
{
sp.ConsumeChar('[');
sp.SkipWS();
if (sp.TryConsumeChar(']'))
return Array.CreateInstance(elemInteropOps.type, 0);
var objs = new List<object>();
while (true)
{
if (sp.Failed)
throw new InvalidOperationException("invalid response");
objs.Add(elemInteropOps.Import(sp));
sp.SkipWS();
if (sp.TryConsumeChar(']'))
{
var res = Array.CreateInstance(elemInteropOps.type, objs.Count);
for (var i = 0; i < objs.Count; i++)
res.SetValue(objs[i], i);
return res;
}
sp.ConsumeChar(',');
}
}
}
// XREF1093
public override object Import(StringParser sp)
{
sp.SkipWS();
if (sp.TryConsumeLit("null"))
return null;
else
{
var key = sp.ConsumeEscapedString();
sp.SkipWS();
var qnm = default(string);
if (!sp.TryConsumeLit("null"))
qnm = sp.ConsumeEscapedString();
if (sp.Failed)
throw new InvalidOperationException("invalid response");
var obj = default(object);
var tkp = new TypeAndKeyPair { type = rootType, key = key };
if (outer.keyToObjectCache.TryGetValue(tkp, out obj))
{
if (!type.IsAssignableFrom(obj.GetType()))
throw outer.MakeInvalidCastException();
}
else
{
if (qnm == null)
obj = outer.CreateDefaultInstance(type, key, 0);
else
{
var rttype = QualifiedNameToType(qnm);
if (!type.IsAssignableFrom(rttype))
throw outer.MakeInvalidCastException();
obj = outer.CreateDefaultInstance(rttype, key, 0);
}
outer.keyToObjectCache.Add(tkp, obj);
var top = new TypeAndObjectPair { type = rootType, obj = obj };
outer.objectToKeyCache.Add(top, key);
// obj is always new
outer.objectToDisconnect.Add(obj, () => Disconnect(tkp, top));
}
return obj;
}
}
public override JSContext ContextForUnmanagedInstance(StringParser sp)
{
sp.SkipWS();
if (sp.TryConsumeLit("null"))
throw new InvalidOperationException("constructor returned null");
else
{
var key = sp.ConsumeEscapedString();
sp.SkipWS();
var qnm = default(string);
if (!sp.TryConsumeLit("null"))
qnm = sp.ConsumeEscapedString();
if (sp.Failed)
throw new InvalidOperationException("invalid response");
var tkp = new TypeAndKeyPair { type = rootType, key = key };
if (outer.keyToObjectCache.ContainsKey(tkp))
throw new InvalidOperationException("constructor reused key from existing object");
if (qnm != null)
{
var rttype = QualifiedNameToType(qnm);
if (!type.IsAssignableFrom(rttype))
throw outer.MakeInvalidCastException();
}
return new JSContext(outer, type, key, 0);
}
}
public override JSContext ContextForUnmanagedInstance(StringParser sp)
{
throw new InvalidOperationException("Normal types cannot have imported constructors");
}
public override object BindCreatedInstance(StringParser sp, object obj)
{
throw new InvalidOperationException("create not required");
}
// XREF1009
public override object Import(StringParser sp)
{
sp.SkipWS();
if (sp.TryConsumeLit("null"))
return null;
else
{
var id = sp.ConsumeId();
if (sp.Failed)
throw new InvalidOperationException("invalid response");
var obj = default(object);
if (!outer.idToObjectCache.TryGetValue(id, out obj))
throw outer.MakeInvalidCastException();
if (!type.IsAssignableFrom(obj.GetType()))
throw outer.MakeInvalidCastException();
return obj;
}
}
public override object Import(StringParser sp)
{
sp.SkipWS();
if (sp.TryConsumeLit("null"))
return null;
else
{
var res = sp.ConsumeEscapedString();
if (sp.Failed)
throw new InvalidOperationException("invalid response");
return res;
}
}
// XREF1319
public override object Import(StringParser sp)
{
sp.SkipWS();
var v = default(double);
if (sp.TryConsumeLit("true"))
v = 1.0;
else if (sp.TryConsumeLit("false"))
v = 0.0;
else if (sp.TryConsumeLit("NaN"))
v = double.NaN;
else
{
v = sp.ConsumeDouble();
if (sp.Failed)
throw new InvalidOperationException("invalid response");
}
switch (type.FullName)
{
case "System.SByte":
return (sbyte)v;
case "System.Boolean":
return v == 0.0 ? false : true;
case "System.Char":
return (char)v;
case "System.Int16":
return (short)v;
case "System.Int32":
return (int)v;
case "System.Int64":
return (long)v;
case "System.Byte":
return (byte)v;
case "System.UInt16":
return (ushort)v;
case "System.UInt32":
return (uint)v;
case "System.UInt64":
return (ulong)v;
case "System.Single":
return (float)v;
case "System.Double":
return v;
default:
throw new InvalidOperationException("not a primitive number type");
}
}
public abstract object Import(StringParser sp);
public override object BindCreatedInstance(StringParser sp, object obj)
{
if (outer.objectToDisconnect.ContainsKey(obj))
throw new InvalidOperationException("object already associated with unmanaged instance");
sp.SkipWS();
var key = sp.ConsumeEscapedString();
if (sp.Failed)
throw new InvalidOperationException("invalid response");
var tkp = new TypeAndKeyPair { type = rootType, key = key };
outer.keyToObjectCache.Add(tkp, obj);
var top = new TypeAndObjectPair { type = rootType, obj = obj };
outer.objectToKeyCache.Add(top, key);
outer.objectToDisconnect.Add(obj, () => Disconnect(tkp, top));
return obj;
}
public abstract JSContext ContextForUnmanagedInstance(StringParser sp);
// XREF1051
public override object Import(StringParser sp)
{
sp.SkipWS();
if (sp.TryConsumeLit("null"))
return null;
else if (sp.TryConsumeLit("undefined"))
{
var obj = outer.CreateDefaultInstance(type, null, -1);
// Remember this object is associated with 'undefined'
outer.proxyToIdCache.Add(obj, -1);
// obj is always new
outer.objectToDisconnect.Add(obj, () => Disconnect(-1, obj));
return obj;
}
else
{
var id = sp.ConsumeId();
sp.SkipWS();
var qnm = default(string);
if (sp.TryConsumeLit("null"))
qnm = null;
else
qnm = sp.ConsumeEscapedString();
if (sp.Failed)
throw new InvalidOperationException("invalid response");
var obj = default(object);
if (qnm == null)
obj = outer.CreateDefaultInstance(type, null, id);
else
{
var rttype = QualifiedNameToType(qnm);
if (!type.IsAssignableFrom(rttype))
throw outer.MakeInvalidCastException();
obj = outer.CreateDefaultInstance(rttype, null, id);
}
outer.proxyToIdCache.Add(obj, id);
// obj is always new
outer.objectToDisconnect.Add(obj, () => Disconnect(id, obj));
return obj;
}
}
// XREF1223
public override object Import(StringParser sp)
{
sp.SkipWS();
if (sp.TryConsumeLit("null"))
return null;
else
return elemInteropOps.Import(sp);
}
// XREF1039
public override object Import(StringParser sp)
{
sp.SkipWS();
if (sp.TryConsumeLit("null"))
return null;
else
{
var id = sp.ConsumeId();
if (sp.Failed)
throw new InvalidOperationException("invalid response");
UniversalDelegate f = argObjects =>
{
if (argObjects == null || argObjects.Length != argInteropOps.Length)
throw new InvalidOperationException
("invalid universal delegate arguments array");
Action<StringBuilder, Dictionary<Type, int>> makeCall =
(sb, toBeLoaded) =>
{
sb.Append(outer.database.RootExpression);
sb.Append(".CallUnmanaged(");
sb.Append(id);
sb.Append(",[");
for (var i = 0; i < argInteropOps.Length; i++)
{
if (i > 0)
sb.Append(',');
argInteropOps[i].AppendExport
(sb, toBeLoaded, argObjects[i]);
}
sb.Append("],");
sb.Append(captureThis ? "true" : "false");
sb.Append(',');
sb.Append(inlineParamsArray ? "true" : "false");
sb.Append(')');
if (resInteropOps == null)
sb.Append(';');
};
if (resInteropOps == null)
return outer.Eval(makeCall, null);
else
return outer.Eval
(resInteropOps.WrapImport(makeCall), resInteropOps.Import);
};
var shimType = outer.database.FindDelegateShim(type);
var shim = Activator.CreateInstance(shimType, f);
var g = Delegate.CreateDelegate(type, shim, "Invoke");
outer.objectToDisconnect.Add(g, () => DisconnectImported(id));
return g;
}
}
