public ABI()
{
var f = new AVMFunction();
f.name = "Main";
f.inputs.Add(new AVMInput()
{
name = "operation", type = Emulator.Type.String
});
f.inputs.Add(new AVMInput()
{
name = "args", type = Emulator.Type.Array
});
this.functions[f.name] = f;
this.entryPoint = functions.Values.FirstOrDefault();
}
public ABI(string fileName)
{
this.fileName = fileName;
var json = File.ReadAllText(fileName);
var root = JSONReader.ReadFromString(json);
var fn = root.GetNode("functions");
foreach (var child in fn.Children)
{
var f = new AVMFunction();
f.name = child.GetString("name");
if (!Enum.TryParse(child.GetString("returnType"), true, out f.returnType))
{
f.returnType = Emulator.Type.Unknown;
}
var p = child.GetNode("parameters");
if (p != null && p.ChildCount > 0)
{
for (int i = 0; i < p.ChildCount; i++)
{
var input = new AVMInput();
input.name = p[i].GetString("name");
var temp = p[i].GetString("type");
if (!Enum.TryParse <Emulator.Type>(temp, true, out input.type))
{
input.type = Emulator.Type.Unknown;
}
f.inputs.Add(input);
}
}
functions[f.name] = f;
}
entryPoint = functions[root.GetString("entrypoint")];
}
public byte[] GenerateLoaderScriptFromInputs(DataNode inputs, ABI abi)
{
var methodName = abi != null && abi.entryPoint != null ? abi.entryPoint.name : null;
using (ScriptBuilder sb = new ScriptBuilder())
{
var items = new Stack <object>();
if (inputs != null)
{
AVMFunction method = methodName != null && abi.functions.ContainsKey(methodName) ? abi.functions[methodName] : null;
int index = 0;
foreach (var item in inputs.Children)
{
Emulator.Type hint = method != null ? method.inputs[index].type : Emulator.Type.Unknown;
var obj = Emulator.ConvertArgument(item, hint);
items.Push(obj);
index++;
}
}
while (items.Count > 0)
{
var item = items.Pop();
NeoAPI.EmitObject(sb, item);
}
var loaderScript = sb.ToArray();
//System.IO.File.WriteAllBytes("loader.avm", loaderScript);
return(loaderScript);
}
}