Adding UnitTask support via USE_UNITASK compile define

composer.json

@@ -1,11 +1,11 @@
 {
     "name": "bit/metagen_cs",
-    "description": "C# codgen support from meta descriptions",
+    "description": "C# codegen support from meta descriptions",
     "homepage": "https://git.bit5.ru/bit/metagen_cs",
     "require": {
         "php": ">=7.4",
         "twig/twig" : "^v3.4.3",
-        "bit/metagen" : "^v3.0.0 || ^v4.0.0"
+        "bit/metagen" : "^v4.0.0"
     },
     "autoload": {
         "files": [

src/codegen.inc.php

@@ -25,9 +25,6 @@ function supported_tokens() : array
     'cs_obsolete',
     //TODO:
     //'i18n'
-    
-    'cs_service_call_builder',
-    'cs_service_client',
   ];
 }
 

tpl/codegen_factory.twig

@@ -33,10 +33,8 @@ static public class AutogenBundle
   {
     switch(class_id) 
     {
-{%- for u in meta.getunits ~%}
-{%- if u.object is instanceof('\\mtgMetaStruct')~%}
-      case {{u.object.classid}}: { return typeof({{u.object.name}}); }
-{%- endif ~%}
+{%- for t in meta.factorytypes ~%}
+      case {{t.classid}}: { return typeof({{t.fullname}}); }
 {%- endfor ~%}
       default: 
       {

tpl/codegen_services.twig

@@ -4,15 +4,93 @@ using System.Threading.Tasks;
 using System.Collections.Generic;
 using metagen;
 using BitGames.Bits;
+#if USE_UNITASK
+using Cysharp.Threading.Tasks;
+#endif
 {%- for use in uses ~%}
 using {{use}};
 {%- endfor ~%}
 
-{% import "service_macro.twig" as macro %}
+{% import "service_macro.twig" as svc_macro %}
+{% import "macro.twig" as cs_macro %}
 
 namespace {{namespace}} 
 { 
 
+public interface IRpcCaller
+{
+#if USE_UNITASK
+  UniTask
+#else
+  Task 
+#endif
+  CallRpc(metagen.IRpc rpc);
+}
+
+public interface IApiBase
+{
+  public IRpcCaller Caller { get; }
+}
+
+public interface IRpcCallBuilder<TRpc> where TRpc : metagen.IRpc
+{
+  public 
+
+#if USE_UNITASK
+  UniTask<TRpc>
+#else
+  Task<TRpc> 
+#endif
+
+  Call();
+}
+
+public struct RpcCallBuilder<TRpc> : IRpcCallBuilder<TRpc> where TRpc : IRpc
+{
+  private IRpcCaller clt;
+  private TRpc rpc;
+
+  public RpcCallBuilder(IRpcCaller clt, TRpc rpc)
+  {
+    this.clt = clt;
+    this.rpc = rpc;
+  }
+
+  public async 
+#if USE_UNITASK
+  UniTask<TRpc>
+#else
+  Task<TRpc> 
+#endif
+  Call()
+  {
+    await clt.CallRpc(rpc);
+    return rpc;
+  }
+}
+
+public struct MockRpcCallBuilder<TRpc> : IRpcCallBuilder<TRpc> where TRpc : IRpc
+{
+  public TRpc Rpc { get; }
+
+  public MockRpcCallBuilder(TRpc rpc)
+  {
+    this.Rpc = rpc;
+  }
+
+#if USE_UNITASK
+  public UniTask<TRpc> Call()
+  {
+    return UniTask.FromResult(Rpc);
+  }
+#else
+  public Task<TRpc> Call()
+  {
+    return Task.FromResult(Rpc);
+  }
+#endif
+}
+
 {%- for unit in meta.units %}
 
 {% if unit.object is instanceof('\\mtgMetaService') %}
@@ -20,9 +98,44 @@ namespace {{namespace}}
 namespace {{unit.object.name}}   
 {
 
-{{macro.gen_client(unit.object)}}
+//constrained local interface, 
+//(this way we don't have to change anything in generated
+//structs below)
+public interface IRpc : metagen.IRpc
+{}
 
-{{macro.gen_server(unit.object)}}
+{%- for rpc in unit.object.rpcs %}
+  {{cs_macro.decl_rpc(rpc, false)}}
+{%- endfor ~%}
+
+{%- for utype in unit.object.usertypes %}
+  {%- if utype is instanceof('\\mtgMetaStruct') -%}
+  {{cs_macro.decl_struct(utype)}}
+  {% elseif utype is instanceof('\\mtgMetaEnum') %}
+  {{cs_macro.decl_enum(utype)}}
+  {% endif %}
+{%- endfor ~%}
+
+public static class Factory
+{
+  public static IRpc CreateRPC(int code)
+  {
+    switch(code)
+    {
+{%- for rpc in unit.object.rpcs ~%}
+
+      case {{rpc.code}}: return new {{rpc.name}}();
+
+{%- endfor ~%}
+    }
+
+    throw new Exception("Unsupported RPC code: " + code);
+  }
+}
+
+{{svc_macro.gen_client(unit.object)}}
+
+{{svc_macro.gen_server(unit.object)}}
 
 }
 

tpl/service_macro.twig

@@ -1,87 +1,33 @@
 
 {%- macro gen_client(obj) ~%}
 
-{% import "macro.twig" as cs_macro %}
-
-//constrained local interface
-public interface IRpc : metagen.IRpc
-{}
-
-{%- for rpc in obj.rpcs %}
-  {{cs_macro.decl_rpc(rpc, false)}}
-{%- endfor ~%}
-
-{%- for utype in obj.usertypes %}
-  {%- if utype is instanceof('\\mtgMetaStruct') -%}
-  {{cs_macro.decl_struct(utype)}}
-  {% elseif utype is instanceof('\\mtgMetaEnum') %}
-  {{cs_macro.decl_enum(utype)}}
-  {% endif %}
-{%- endfor ~%}
-
-public static class Factory
+public interface IApi : IApiBase
 {
-  public static IRpc CreateRPC(int code)
-  {
-    switch(code)
-    {
 {%- for rpc in obj.rpcs ~%}
-
-      case {{rpc.code}}: return new {{rpc.name}}();
-
-{%- endfor ~%}
-    }
-
-    throw new Exception("Unsupported RPC code: " + code);
-  }
-}
-
-public interface IRpcCaller
-{
-  Task CallRpc(metagen.IRpc rpc);
-}
-
-public struct RpcCallBuilder<TRpc> where TRpc : IRpc
-{
-  private IRpcCaller clt;
-  private TRpc rpc;
-
-  public RpcCallBuilder(IRpcCaller clt, TRpc rpc)
-  {
-    this.clt = clt;
-    this.rpc = rpc;
-  }
-
-  public async Task<TRpc> Call()
-  {
-    await clt.CallRpc(rpc);
-    return rpc;
-  }
-}
-
-public interface IApi
-{
-  public {{token_or(obj, 'cs_service_client', 'IRpcCaller')}} Client { get; }
-
-{%- for rpc in obj.rpcs ~%}
-  public {{token_or(obj, 'cs_service_call_builder', 'RpcCallBuilder')}}<{{rpc.name}}> Begin({{rpc.name}} rpc);
+  public IRpcCallBuilder<{{rpc.name}}> Begin({{rpc.name}} rpc);
 {%- endfor ~%}
 }
 
 public class Api : IApi
 {
-  public {{token_or(obj, 'cs_service_client', 'IRpcCaller')}} Client { get; private set; }
+  public IRpcCaller Caller { get; }
 
-  public Api({{token_or(obj, 'cs_service_client', 'IRpcCaller')}} client)
+  public Api(IRpcCaller caller)
   {
-    this.Client = client;
+    this.Caller = caller;
+  }
+
+  public virtual IRpcCallBuilder<T> CreateCallBuilder<T>(metagen.IRpc rpc) where T : IRpc
+  {
+    return new RpcCallBuilder<T>(Caller, (T)rpc);
   }
 
 {%- for rpc in obj.rpcs ~%}
 
-  public {{token_or(obj, 'cs_service_call_builder', 'RpcCallBuilder')}}<{{rpc.name}}> Begin({{rpc.name}} rpc)
+  public IRpcCallBuilder<{{rpc.name}}> Begin({{rpc.name}} rpc)
   {
-    return new {{token_or(obj, 'cs_service_call_builder', 'RpcCallBuilder')}}<{{rpc.name}}>(Client, rpc);
+    var builder = CreateCallBuilder<{{rpc.name}}>(rpc);
+    return builder;
   }
 
 {%- endfor ~%}
@@ -91,7 +37,7 @@ public class Api : IApi
 public class ApiDecoratorBase : IApi
 {
   private IApi orig;
-  public {{token_or(obj, 'cs_service_client', 'IRpcCaller')}} Client => orig.Client;
+  public IRpcCaller Caller => orig.Caller;
 
   public ApiDecoratorBase(IApi orig)
   {
@@ -103,7 +49,7 @@ public class ApiDecoratorBase : IApi
 
 {%- for rpc in obj.rpcs ~%}
 
-  public virtual {{token_or(obj, 'cs_service_call_builder', 'RpcCallBuilder')}}<{{rpc.name}}> Begin({{rpc.name}} rpc)
+  public virtual IRpcCallBuilder<{{rpc.name}}> Begin({{rpc.name}} rpc)
   {
     OnBefore(rpc);
     return orig.Begin(rpc);
@@ -115,16 +61,21 @@ public class ApiDecoratorBase : IApi
 
 public class MockApiBase : IApi
 {
-  public {{token_or(obj, 'cs_service_client', 'IRpcCaller')}} Client { get; private set; }
+  public IRpcCaller Caller { get; private set; }
 
-  public MockApiBase({{token_or(obj, 'cs_service_client', 'IRpcCaller')}} client)
+  static protected IRpcCallBuilder<T> Result<T>(T rpc) where T : metagen.IRpc
   {
-    this.Client = client;
+    return new MockRpcCallBuilder<T>(rpc);
+  }
+
+  public MockApiBase(IRpcCaller caller)
+  {
+    this.Caller = caller;
   }
 
 {%- for rpc in obj.rpcs ~%}
 
-  public virtual {{token_or(obj, 'cs_service_call_builder', 'RpcCallBuilder')}}<{{rpc.name}}> Begin({{rpc.name}} rpc)
+  public virtual IRpcCallBuilder<{{rpc.name}}> Begin({{rpc.name}} rpc)
   {
     throw new System.NotImplementedException();
   }
@@ -150,7 +101,7 @@ static public class ApiExtensions
      return __rpc;
   }
 
-  static public {{token_or(obj, 'cs_service_call_builder', 'RpcCallBuilder')}}<{{rpc.name}}> {{rpc.name}}(this IApi __api{%- if rpc.req.fields|length > 0 -%},{%-endif-%}
+  static public IRpcCallBuilder<{{rpc.name}}> {{rpc.name}}(this IApi __api{%- if rpc.req.fields|length > 0 -%},{%-endif-%}
   {%- for fld in rpc.req.fields ~%}
     {{fld.type|cs_type}} {% if has_token(fld, 'default') -%} {{ var_reset(fld.name, fld.type, token(fld, 'default'))|trim(';', 'right') }} {%-else-%} {{fld.name}} {%-endif-%} 
     {%- if not loop.last -%},{%-endif-%} 
@@ -174,8 +125,6 @@ static public class ApiExtensions
 
 {%- macro gen_server(obj) ~%}
 
-{% import "macro.twig" as cs_macro %}
-
 public interface IServer<TConn, TRet>
 {
 
@@ -196,7 +145,7 @@ public static class Router<TConn, TRet>
 {%- endfor ~%}
   }
 
-  static public TRet DispatchRequest(IServer<TConn, TRet> server, TConn conn, IRpc rpc)
+  static public TRet DispatchRequest(IServer<TConn, TRet> server, TConn conn, metagen.IRpc rpc)
   {
     switch(rpc.GetCode())
     {