private void CompileInstantiate(ParserBlock block, BlockLocal start, BlockLocal tree)
{
block.BeginScope();
Type[] parameterTypes = new Type[1 + Fields.Count];
parameterTypes[0] = typeof(Source);
for (int n = 1; n < parameterTypes.Length; n++)
parameterTypes[n] = typeof(object);
ConstructorInfo constructor = Type.GetConstructor(parameterTypes);
if (constructor == null)
throw new Exception("Couldn't find constructor for " + Type.FullName);
block.LoadLexer();
block.LoadLocal(start);
block.Call(typeof(Lexer).GetMethod("SourceFrom"));
BlockLocal fields = new BlockLocal(typeof(Dictionary<string, object>));
block.DeclareLocal(fields);
block.LoadLocal(tree);
block.GetProperty(typeof(ParseTree).GetProperty("Fields"));
block.StoreLocal(fields);
for (int n = 0; n < Fields.Count; n++)
{
block.BeginScope();
BlockLocal fieldValue = new BlockLocal(typeof(object));
block.DeclareLocal(fieldValue);
block.LoadLocal(fields);
block.Load(Fields[n]);
block.LoadLocalAddress(fieldValue);
block.Call(fields.Type.GetMethod("TryGetValue"));
block.Pop();
block.LoadLocal(fieldValue);
block.EndScope();
}
block.New(constructor);
BlockLocal instance = new BlockLocal(typeof(RuntimeObject));
block.DeclareLocal(instance);
block.StoreLocal(instance);
// Call Parsed
block.Load(0);
block.NewArray(typeof(object));
block.BeginScope();
BlockLocal parsedParameters = new BlockLocal(typeof(object[]));
block.DeclareLocal(parsedParameters);
block.StoreLocal(parsedParameters);
block.LoadLocal(instance);
block.Load("Parsed");
block.LoadLocal(parsedParameters);
block.Load(false);
block.Call(typeof(MemberNode).GetMethod("GetMember", new Type[]{
typeof(object), typeof(string), typeof(object[]),
typeof(bool)}));
BlockLabel noParsedMethod = new BlockLabel("noParsedMethod");
block.Dup();
block.BranchIfNull(noParsedMethod);
BlockLocal parsedMethod = new BlockLocal(typeof(object));
block.DeclareLocal(parsedMethod);
block.StoreLocal(parsedMethod);
block.LoadRuntimeState();
block.LoadLocal(parsedMethod);
block.LoadLocal(parsedParameters);
block.Call(typeof(CallNode).GetMethod("Call", new Type[]{
typeof(RuntimeState), typeof(object), typeof(object[])}));
block.Pop();
BlockLabel finishedParsedCall = new BlockLabel("finishedParsedCall");
block.Branch(finishedParsedCall);
block.MarkLabel(noParsedMethod);
block.Pop();
block.MarkLabel(finishedParsedCall);
block.EndScope();
block.LoadLocal(instance);
block.New(typeof(ParseTree).GetConstructor(new Type[]{typeof(object)}));
block.StoreLocal(tree);
block.EndScope();
}
