Better check for null default values

CHANGELOG.md

@@ -1,3 +1,15 @@
+## v6.1.0
+- Removed redundant accessor interface declarations in generated slices
+
+## v5.0.0
+- Splitting one huge codegenerated file into multiple ones
+
+## v4.10.0
+- Added @flt_i18n token to support translations
+
+## v4.9.2
+- Added @cs_obsolete token, that mark fields with [Obsolete]. @cs_obsolete:"Comment" will add summary with "Comment" to field
+
 ## v4.9.1
 - Fixing nested diffable POD structs being incorrectly marked as clean in GetDiff
 

README.md

@@ -2,9 +2,10 @@ This package is used for code generation of C# meta structs using Twig templates
 
 Usage example:
 
-    $code = \metagen_cs\codegen(null, get_meta(), 
+    $output = \metagen_cs\codegen(null, get_meta(), 
     [
       'namespace' => 'BitGames.Autogen'
     ]);
-    file_put_contents('bundle.cs', $code);
+    foreach($output as $name => $text)
+      file_put_contents($name, $text); 
 

src/codegen.inc.php

@@ -2,7 +2,7 @@
 namespace metagen_cs;
 use Exception;
 
-function codegen(?string $cache_dir, \mtgMetaInfo $meta, array $options = []) : string
+function codegen(?string $cache_dir, \mtgMetaInfo $meta, array $options = []) : array
 {
   $twig = get_twig();
 
@@ -15,7 +15,21 @@ function codegen(?string $cache_dir, \mtgMetaInfo $meta, array $options = []) :
   if(!isset($options['namespace']))
     $options['namespace'] = 'BitGames.Autogen';
 
-  return $twig->render('codegen_bundle.twig', $options);
+  $sliced_units = slice_units($meta->getUnits(), 50);
+
+  $output = array();
+
+  foreach($sliced_units as $slice_idx => $slice_units)
+  {
+    $slice_options = $options;
+    $slice_options['slice_idx'] = $slice_idx;
+    $slice_options['slice_units'] = $slice_units;
+    $output['types_'.$slice_idx.'.cs'] = $twig->render('codegen_types_slice.twig', $slice_options);
+  }
+
+  $output['factory.cs'] = $twig->render('codegen_factory.twig', $options);
+
+  return $output;
 }
 
 function get_twig(array $inc_path = []) : \Twig\Environment
@@ -55,6 +69,7 @@ function supported_tokens() : array
     'cs_propget_interface',
     'cs_propset_interface',
     'cs_propgetset_interface',
+    'cs_obsolete',
     //TODO:
     //'i18n'
   ];
@@ -127,6 +142,15 @@ function _add_twig_support(\Twig\Environment $twig)
       return cs_type($type);
     }
   ));
+  $twig->addFilter(new \Twig\TwigFilter('cs_simple_type', 
+    function($type) 
+    {
+      if($type instanceof \mtgArrType)
+        return cs_simple_type($type->getValue());
+      else
+        return cs_simple_type($type);
+    }
+  ));
   $twig->addFilter(new \Twig\TwigFilter('cs_type_prefix', 
     function($type) 
     {
@@ -232,7 +256,7 @@ function cs_simple_type(\mtgType $type)
       case "bool":
         return "bool";
       case "blob":
-        return "byte[]";
+        return "ArraySegment<byte>";
     }
     throw new Exception("Unknown type '{$type}'");
   }
@@ -343,7 +367,7 @@ function var_reset($name, \mtgType $type, $default = null)
         $str .= " = ".trim($default, '"').";";
       }
       else
-        $str .= ' = null;';
+        $str .= ' = default;';
     }
     else 
       throw new Exception("Unknown type '$type'");
@@ -395,16 +419,16 @@ function var_reset($name, \mtgType $type, $default = null)
 
     if($default)
     {
-      $default = is_array($default) ? $default : json_decode($default, true);
-      if(is_array($default))
+      $default_val = is_array($default) ? $default : json_decode($default, true);
+      if(is_array($default_val))
       {
-        foreach($default as $k => $v)
+        foreach($default_val as $k => $v)
         {
           $kf = $type->getField($k); 
           $str .= var_reset("$name." . $kf->getName(), $kf->getType(), $v);
         }
       }
-      else if($default === null)
+      else if(is_null_str($default))
         $str .= "$name = null; ";
       else
         throw new Exception("Bad default value for struct: " . var_export($default, true));
@@ -417,7 +441,7 @@ function var_reset($name, \mtgType $type, $default = null)
 
 function is_null_str($default)
 {
-  return is_string($default) && json_decode($default, true) === null;
+  return is_string($default) && strtolower($default) === 'null';
 }
 
 function var_sync($fname, \mtgType $type, $buf, array $tokens, $opts)
@@ -703,3 +727,41 @@ function get_field_index(\mtgMetaStruct $struct, string $field_name): int
   }
   return -1;
 }
+
+function paginate($total, $step)
+{
+  //pages are returned as an array where each element is in interval [N, Y)
+  $pages = array();
+
+  $steps = (int)($total/$step);
+  $rest = $total % $step;
+
+  for($i=1;$i<=$steps;++$i)
+    $pages[] = array(($i-1)*$step, $i*$step);
+
+  if($rest != 0)
+    $pages[]  = array(($i-1)*$step, ($i-1)*$step + $rest);
+
+  return $pages;
+}
+
+//slices array like this: [[idx0,[..]], [idx1,[..]], ...]
+function slice_units(array $units, $max)
+{
+  $pages = paginate(sizeof($units), $max);
+  
+  $sliced = array();
+
+  $units_keys = array_keys($units);
+
+  foreach($pages as $idx => $page)
+  {
+    $slice = array();
+    for($i = $page[0];$i<$page[1];++$i)
+    {
+      $slice[] = $units[$units_keys[$i]];
+    }
+    $sliced[$idx] = $slice;  
+  }
+  return $sliced;
+}

tpl/codegen_factory.twig

@@ -1,6 +1,7 @@
 //THIS FILE IS GENERATED AUTOMATICALLY, DO NOT TOUCH IT!
 using System.Collections.Generic;
 using metagen;
+using System;
 
 {%- import "macro.twig" as macro -%}
 
@@ -8,7 +9,9 @@ using metagen;
 namespace {{namespace}} {
 {% endif %}
 
-{{ macro.decl_units(meta) }}
+{%- for ai in get_all_declarable_accessor_interfaces(meta) ~%}
+  {{ macro.decl_accessor_interface(ai) }}
+{%- endfor ~%}
 
 static public class AutogenBundle 
 {

tpl/codegen_types_slice.twig

@@ -0,0 +1,16 @@
+//THIS FILE IS GENERATED AUTOMATICALLY, DO NOT TOUCH IT!
+using System.Collections.Generic;
+using metagen;
+using System;
+
+{%- import "macro.twig" as macro -%}
+
+{% if namespace is defined ~%}
+namespace {{namespace}} {
+{% endif %}
+
+{{ macro.decl_units(slice_units) }}
+
+{% if namespace is defined ~%}
+} //namespace {{namespace}}
+{% endif %}

tpl/macro.twig

@@ -1,6 +1,6 @@
-{% macro decl_units(meta) %}
+{% macro decl_units(units) %}
 
-{%- for u in meta.getunits ~%}
+{%- for u in units ~%}
   {%- if u.object is instanceof('\\mtgMetaStruct') -%}
   {{ _self.decl_struct(u.object) }}
   {%- elseif u.object is instanceof('\\mtgMetaEnum') -%}
@@ -10,10 +10,6 @@
   {%- endif ~%}
 {%- endfor ~%}
 
-{%- for ai in get_all_declarable_accessor_interfaces(meta) ~%}
-  {{ _self.decl_accessor_interface(ai) }}
-{%- endfor ~%}
-
 {% endmacro %}
 
 {% macro decl_struct(o, extra = '') %}
@@ -160,12 +156,23 @@ public FieldsMask fields_mask;
 
 {%- macro decl_struct_field(o, f) -%}
 {{_self.attributes(f)}}
-public {{f.type|cs_type|obscure_type(f)}} {{f.name}} {% if not has_token(o, 'POD') -%} {{_self.decl_init_value(f)}} {%- endif -%};
+{% if has_token(f, 'flt_i18n') -%}
+{{f.type}} _{{f.name}} = "";
+List<{{f.type}}> __{{f.name}} = new List<{{f.type}}>();
+{%- endif ~%}
+public {{f.type|cs_type|obscure_type(f)}} {{f.name}} {% if not has_token(o, 'POD') -%} {{_self.decl_init_value(f)}} {%- endif -%} {% if not has_token(f, 'flt_i18n') -%};{%- endif -%}
 {%- endmacro -%}
 
 {% macro decl_init_value(f) %}
 {%- if f.type is instanceof('\\mtgBuiltinType') -%}
-{%- if f.type.isstring -%} = ""{%- endif -%}
+{%- if f.type.isstring -%}
+{% if has_token(f, 'flt_i18n') -%}
+{get{return plural_{{f.name}}(double.NaN);}set{_{{f.name}}=value;}}
+{{f.type}} plural_{{f.name}}(double force_n){return MetaI18N.I18NPick(_{{f.name}},__{{f.name}},"#",force_n);}
+{%- else -%}
+= ""
+{%- endif ~%}
+{%- endif -%}
 {%- else -%}
 {%- if has_token(f, 'default') and token(f, 'default') == 'null'  -%}
 /*null*/
@@ -180,7 +187,12 @@ public {{f.type|cs_type|obscure_type(f)}} {{f.name}} {% if not has_token(o, 'POD
 base.Reset();
 {%- endif -%}
 {%- for f in o.fields ~%}
-{{var_reset(f.name, f.type, token_or(f, 'default', null))}}
+{% set fname = f.name %}
+{% if has_token(f, 'flt_i18n') -%}
+{% set fname = '_' ~ f.name %}
+if(_{{fname}} == null) _{{fname}} = new(); else _{{fname}}.Clear();
+{%- endif ~%}
+{{var_reset(fname, f.type, token_or(f, 'default', null))}}
 {%- endfor -%}
 {%- if has_token(o, 'bitfields') ~%} 
 ResetFieldMask();
@@ -188,6 +200,12 @@ ResetFieldMask();
 {% endmacro %}
 
 {%- macro attributes(o) %}
+{% if has_token(o, "cs_obsolete") %}
+/// <summary>
+/// {{token(o, "cs_obsolete")}}
+/// </summary>
+[Obsolete]
+{% endif %}
 {%- if has_token(o, 'cs_attributes') -%} 
 {%- for attr in token(o, 'cs_attributes')|split(',') -%} 
 [{{attr}}]
@@ -273,7 +291,11 @@ bitctx.SyncMaskHeader();
 base.SyncFields(ctx);
 {%- endif -%}
 {%- for f in o.fields ~%}
-{{var_sync(f.name, f.type, 'ctx', f.tokens, get_sync_opts(o, 'bitctx'))}}
+{% set fname = f.name %}
+{% if has_token(f, 'flt_i18n') -%}
+{% set fname = '_' ~ f.name %}
+{%- endif -%}
+{{var_sync(fname, f.type, 'ctx', f.tokens, get_sync_opts(o, 'bitctx'))}}
 {%- endfor -%}
 {%- endmacro -%}