public override IEnumerable <MethodNode> GetNodes(DzTreeContext context)
{
string ct = context.CSharpIndent;
yield return(new CSharpLineNode($"{ct}json = json.TrimStart();"));
yield return(new CSharpLineNode($"{ct}var NULL_SPAN = \"null\".AsSpan();"));
yield return(new CSharpLineNode($"{ct}if (json.StartsWith(NULL_SPAN))"));
yield return(new CSharpLineNode($"{ct}{{"));
ct = context.IndentCSharp(+1);
yield return(new CSharpLineNode($"{ct}json = json.Slice(4);"));
yield return(new CSharpLineNode($"{ct}return default({Type});"));
ct = context.IndentCSharp(-1);
yield return(new CSharpLineNode($"{ct}}}"));
string errmsg = "Invalid JSON at position: {content.Length - json.Length}. Expected '['";
yield return(new CSharpLineNode($"{ct}if (json[0] != '[') throw new Exception($\"{errmsg}\");"));
yield return(new CSharpLineNode($"{ct}json = json.Slice(1);"));
// Parse list items
yield return(new CSharpLineNode($"{ct}System.Collections.Generic.List<{Type}> obj = new System.Collections.Generic.List<{Type}>();"));
yield return(new CSharpLineNode($"{ct}while (true)"));
yield return(new CSharpLineNode($"{ct}{{"));
ct = context.IndentCSharp(+1);
yield return(new CSharpLineNode($"{ct}json = json.TrimStart();"));
errmsg = "Invalid JSON at position: {content.Length - json.Length}. Expected object content or ']'";
yield return(new CSharpLineNode($"{ct}if (json.IsEmpty) throw new Exception($\"{errmsg}\");"));
yield return(new CSharpLineNode($"{ct}if (json[0] == ']') break;"));
// list item
foreach (MethodNode methodNode in Property.GetNodes(context))
{
yield return(methodNode);
}
yield return(new CSharpLineNode($"{ct}json = json.TrimStart();"));
yield return(new CSharpLineNode($"{ct}if (json[0] == ',') json = json.Slice(1);"));
ct = context.IndentCSharp(-1);
yield return(new CSharpLineNode($"{ct}}}"));
yield return(new CSharpLineNode($"{ct}json = json.Slice(1);"));
yield return(new CSharpLineNode($"{ct}return obj;"));
}
private void GenerateDeserializeMethodBody(StringBuilder sb, DeserializeInvocation invocation)
{
DzTreeContext treeContext = new DzTreeContext();
treeContext.IndentCSharp(+3);
string ct = treeContext.CSharpIndent;
List <MethodNode> nodes = new List <MethodNode>();
string invocationTypeStr = invocation.TypeArg.ToString();
DzJsonNode dzTree = BuildDzTree(invocation.TypeArg, "obj");
if (dzTree is null)
{
nodes.Add(new CSharpLineNode($"{ct}obj = default({invocationTypeStr});"));
nodes.Add(new CSharpLineNode($"{ct}// Type '{invocationTypeStr}' isn't marked as serializable!"));
}
else
{
nodes.Add(new CSharpLineNode($"{ct}ReadOnlySpan<char> json = content.AsSpan().TrimStart();"));
nodes.Add(new CSharpLineNode($"{ct}if (json.IsEmpty)"));
nodes.Add(new CSharpLineNode($"{ct}{{"));
ct = treeContext.IndentCSharp(+1);
nodes.Add(new CSharpLineNode($"{ct}obj = default({invocationTypeStr});"));
nodes.Add(new CSharpLineNode($"{ct}return;"));
ct = treeContext.IndentCSharp(-1);
nodes.Add(new CSharpLineNode($"{ct}}}"));
nodes.Add(new CSharpNode($"{ct}obj = "));
nodes.AddRange(dzTree.GetNodes(treeContext));
nodes.Add(new CSharpLineNode($";"));
}
//nodes.Add(new CSharpLineNode($"{ct}return new {invocationTypeStr}();"));
foreach (CSharpNode node in nodes.OfType <CSharpNode>())
{
sb.Append(node.CSharpCode);
}
}
private void WriteDeserializeList(StringBuilder sb, DzListNode listNode)
{
string objectTypeStrValid = listNode.Type.Replace(".", "_").Replace("<", "_").Replace(">", "");
const string SPC = " ";
sb.Append($@"{SPC}{SPC}private static System.Collections.Generic.List<{listNode.Type}> DeserializeList_{objectTypeStrValid}(ref string content, ref ReadOnlySpan<char> json)
{{
");
DzTreeContext treeContext = new DzTreeContext();
treeContext.IndentCSharp(+3);
foreach (CSharpNode node in listNode.GetNodes(treeContext).OfType <CSharpNode>())
{
sb.Append(node.CSharpCode);
}
sb.Append($@"
}}
");
}
private void WriteDeserializeObject(StringBuilder sb, DzObjectNode objNode)
{
string objectTypeStrValid = objNode.Type.Replace(".", "_");
const string SPC = " ";
sb.Append($@"{SPC}{SPC}private static {objNode.Type} Deserialize_{objectTypeStrValid}(ref string content, ref ReadOnlySpan<char> json)
{{
");
DzTreeContext treeContext = new DzTreeContext();
treeContext.IndentCSharp(+3);
foreach (CSharpNode node in objNode.GetNodes(treeContext).OfType <CSharpNode>())
{
sb.Append(node.CSharpCode);
}
sb.Append($@"
}}
");
}