Issue 5131 - [emscripten] Clean separation of bindings code and runtime code

compiled/bindings/main.cpp

 /*
  * This file is part of Adblock Plus <https://adblockplus.org/>,
  * Copyright (C) 2006-2017 eyeo GmbH
  *
  * Adblock Plus is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 3 as
  * published by the Free Software Foundation.
  *
  * Adblock Plus is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
  * along with Adblock Plus.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include "bindings.ipp"
-#include "filter/Filter.h"
-#include "filter/InvalidFilter.h"
-#include "filter/CommentFilter.h"
-#include "filter/ActiveFilter.h"
-#include "filter/RegExpFilter.h"
-#include "filter/BlockingFilter.h"
-#include "filter/WhitelistFilter.h"
-#include "filter/ElemHideBase.h"
-#include "filter/ElemHideFilter.h"
-#include "filter/ElemHideException.h"
-#include "filter/ElemHideEmulationFilter.h"
-#include "subscription/Subscription.h"
-#include "subscription/DownloadableSubscription.h"
-#include "subscription/UserDefinedSubscription.h"
-#include "FilterNotifier.h"
+#include <exception>
+#include <emscripten.h>
 
-EMSCRIPTEN_BINDINGS
+#include "generator.h"
+#include "../filter/Filter.h"
+#include "../filter/InvalidFilter.h"
+#include "../filter/CommentFilter.h"
+#include "../filter/ActiveFilter.h"
+#include "../filter/RegExpFilter.h"
+#include "../filter/BlockingFilter.h"
+#include "../filter/WhitelistFilter.h"
+#include "../filter/ElemHideBase.h"
+#include "../filter/ElemHideFilter.h"
+#include "../filter/ElemHideException.h"
+#include "../filter/ElemHideEmulationFilter.h"
+#include "../subscription/Subscription.h"
+#include "../subscription/DownloadableSubscription.h"
+#include "../subscription/UserDefinedSubscription.h"
+#include "../FilterNotifier.h"
+
+int main()
 {
-  class_<Filter>("Filter")
-      .property("text", &Filter::GetText)
-      .function("serialize", &Filter::Serialize)
-      .class_function("fromText", &Filter::FromText)
-      .subclass_differentiator(&Filter::mType, {
-        {Filter::Type::INVALID, "InvalidFilter"},
-        {Filter::Type::COMMENT, "CommentFilter"},
-        {Filter::Type::BLOCKING, "BlockingFilter"},
-        {Filter::Type::WHITELIST, "WhitelistFilter"},
-        {Filter::Type::ELEMHIDE, "ElemHideFilter"},
-        {Filter::Type::ELEMHIDEEXCEPTION, "ElemHideException"},
-        {Filter::Type::ELEMHIDEEMULATION, "ElemHideEmulationFilter"},
-      });
+  try
+  {
+    class_<Filter>("Filter")

[sergei, 2017/04/20 14:52:00]

Maybe it worth to leave these code in a function and call the latter from main.
The current version is is fine me, though.

[Wladimir Palant, 2017/04/20 14:54:29]

This is worth considering but let's land this change first - I really need to
get it out of my patch queue :)

+        .property("text", &Filter::GetText)
+        .function("serialize", &Filter::Serialize)
+        .class_function("fromText", &Filter::FromText)
+        .subclass_differentiator(&Filter::mType, {
+          {Filter::Type::INVALID, "InvalidFilter"},
+          {Filter::Type::COMMENT, "CommentFilter"},
+          {Filter::Type::BLOCKING, "BlockingFilter"},
+          {Filter::Type::WHITELIST, "WhitelistFilter"},
+          {Filter::Type::ELEMHIDE, "ElemHideFilter"},
+          {Filter::Type::ELEMHIDEEXCEPTION, "ElemHideException"},
+          {Filter::Type::ELEMHIDEEMULATION, "ElemHideEmulationFilter"},
+        });
 
-  class_<InvalidFilter,Filter>("InvalidFilter")
-      .class_property("type", "'invalid'")
-      .property("reason", &InvalidFilter::GetReason);
+    class_<InvalidFilter,Filter>("InvalidFilter")
+        .class_property("type", "'invalid'")
+        .property("reason", &InvalidFilter::GetReason);
 
-  class_<CommentFilter,Filter>("CommentFilter")
-      .class_property("type", "'comment'");
+    class_<CommentFilter,Filter>("CommentFilter")
+        .class_property("type", "'comment'");
 
-  class_<ActiveFilter,Filter>("ActiveFilter")
-      .property("disabled", &ActiveFilter::GetDisabled, &ActiveFilter::SetDisabled)
-      .property("hitCount", &ActiveFilter::GetHitCount, &ActiveFilter::SetHitCount)
-      .property("lastHit", &ActiveFilter::GetLastHit, &ActiveFilter::SetLastHit)
-      .function("isActiveOnDomain", &ActiveFilter::IsActiveOnDomain)
-      .function("isActiveOnlyOnDomain", &ActiveFilter::IsActiveOnlyOnDomain)
-      .function("isGeneric", &ActiveFilter::IsGeneric)
-      .function("serialize", &ActiveFilter::Serialize);
+    class_<ActiveFilter,Filter>("ActiveFilter")
+        .property("disabled", &ActiveFilter::GetDisabled, &ActiveFilter::SetDisabled)
+        .property("hitCount", &ActiveFilter::GetHitCount, &ActiveFilter::SetHitCount)
+        .property("lastHit", &ActiveFilter::GetLastHit, &ActiveFilter::SetLastHit)
+        .function("isActiveOnDomain", &ActiveFilter::IsActiveOnDomain)
+        .function("isActiveOnlyOnDomain", &ActiveFilter::IsActiveOnlyOnDomain)
+        .function("isGeneric", &ActiveFilter::IsGeneric)
+        .function("serialize", &ActiveFilter::Serialize);
 
-  class_<RegExpFilter,ActiveFilter>("RegExpFilter")
-      .function("matches", &RegExpFilter::Matches);
+    class_<RegExpFilter,ActiveFilter>("RegExpFilter")
+        .function("matches", &RegExpFilter::Matches);
 
-  custom_generator(&RegExpFilter::GenerateCustomBindings);
+    class_<BlockingFilter,RegExpFilter>("BlockingFilter")
+        .class_property("type", "'blocking'");
 
-  class_<BlockingFilter,RegExpFilter>("BlockingFilter")
-      .class_property("type", "'blocking'");
+    class_<WhitelistFilter,RegExpFilter>("WhitelistFilter")
+        .class_property("type", "'whitelist'");
 
-  class_<WhitelistFilter,RegExpFilter>("WhitelistFilter")
-      .class_property("type", "'whitelist'");
+    class_<ElemHideBase,ActiveFilter>("ElemHideBase")
+        .property("selector", &ElemHideBase::GetSelector)
+        .property("selectorDomain", &ElemHideBase::GetSelectorDomain);
 
-  class_<ElemHideBase,ActiveFilter>("ElemHideBase")
-      .property("selector", &ElemHideBase::GetSelector)
-      .property("selectorDomain", &ElemHideBase::GetSelectorDomain);
+    class_<ElemHideFilter,ElemHideBase>("ElemHideFilter")
+        .class_property("type", "'elemhide'");
 
-  class_<ElemHideFilter,ElemHideBase>("ElemHideFilter")
-      .class_property("type", "'elemhide'");
+    class_<ElemHideException,ElemHideBase>("ElemHideException")
+        .class_property("type", "'elemhideexception'");
 
-  class_<ElemHideException,ElemHideBase>("ElemHideException")
-      .class_property("type", "'elemhideexception'");
+    class_<ElemHideEmulationFilter,ElemHideBase>("ElemHideEmulationFilter")
+        .class_property("type", "'elemhideemulation'");
 
-  class_<ElemHideEmulationFilter,ElemHideBase>("ElemHideEmulationFilter")
-      .class_property("type", "'elemhideemulation'");
+    class_<Subscription>("Subscription")
+        .property("url", &Subscription::GetID)
+        .property("title", &Subscription::GetTitle, &Subscription::SetTitle)
+        .property("disabled", &Subscription::GetDisabled, &Subscription::SetDisabled)
+        .property("filterCount", &Subscription::GetFilterCount)
+        .function("filterAt", &Subscription::FilterAt)
+        .function("indexOfFilter", &Subscription::IndexOfFilter)
+        .function("serialize", &Subscription::Serialize)
+        .function("serializeFilters", &Subscription::SerializeFilters)
+        .class_function("fromURL", &Subscription::FromID)
+        .subclass_differentiator(&Subscription::mType, {
+          {Subscription::Type::USERDEFINED, "SpecialSubscription"},
+          {Subscription::Type::DOWNLOADABLE, "DownloadableSubscription"},
+        });
 
-  class_<Subscription>("Subscription")
-      .property("url", &Subscription::GetID)
-      .property("title", &Subscription::GetTitle, &Subscription::SetTitle)
-      .property("disabled", &Subscription::GetDisabled, &Subscription::SetDisabled)
-      .property("filterCount", &Subscription::GetFilterCount)
-      .function("filterAt", &Subscription::FilterAt)
-      .function("indexOfFilter", &Subscription::IndexOfFilter)
-      .function("serialize", &Subscription::Serialize)
-      .function("serializeFilters", &Subscription::SerializeFilters)
-      .class_function("fromURL", &Subscription::FromID)
-      .subclass_differentiator(&Subscription::mType, {
-        {Subscription::Type::USERDEFINED, "SpecialSubscription"},
-        {Subscription::Type::DOWNLOADABLE, "DownloadableSubscription"},
-      });
+    class_<UserDefinedSubscription,Subscription>("SpecialSubscription")
+        .function("isDefaultFor", &UserDefinedSubscription::IsDefaultFor)
+        .function("makeDefaultFor", &UserDefinedSubscription::MakeDefaultFor)
+        .function("insertFilterAt", &UserDefinedSubscription::InsertFilterAt)
+        .function("removeFilterAt", &UserDefinedSubscription::RemoveFilterAt)
+        .function("serialize", &UserDefinedSubscription::Serialize);
 
-  class_<UserDefinedSubscription,Subscription>("SpecialSubscription")
-      .function("isDefaultFor", &UserDefinedSubscription::IsDefaultFor)
-      .function("makeDefaultFor", &UserDefinedSubscription::MakeDefaultFor)
-      .function("insertFilterAt", &UserDefinedSubscription::InsertFilterAt)
-      .function("removeFilterAt", &UserDefinedSubscription::RemoveFilterAt)
-      .function("serialize", &UserDefinedSubscription::Serialize);
+    class_<DownloadableSubscription,Subscription>("DownloadableSubscription")
+        .property("fixedTitle", &DownloadableSubscription::GetFixedTitle, &DownloadableSubscription::SetFixedTitle)
+        .property("homepage", &DownloadableSubscription::GetHomepage, &DownloadableSubscription::SetHomepage)
+        .property("lastCheck", &DownloadableSubscription::GetLastCheck, &DownloadableSubscription::SetLastCheck)
+        .property("expires", &DownloadableSubscription::GetHardExpiration, &DownloadableSubscription::SetHardExpiration)
+        .property("softExpiration", &DownloadableSubscription::GetSoftExpiration, &DownloadableSubscription::SetSoftExpiration)
+        .property("lastDownload", &DownloadableSubscription::GetLastDownload, &DownloadableSubscription::SetLastDownload)
+        .property("downloadStatus", &DownloadableSubscription::GetDownloadStatus, &DownloadableSubscription::SetDownloadStatus)
+        .property("lastSuccess", &DownloadableSubscription::GetLastSuccess, &DownloadableSubscription::SetLastSuccess)
+        .property("errors", &DownloadableSubscription::GetErrorCount, &DownloadableSubscription::SetErrorCount)
+        .property("version", &DownloadableSubscription::GetDataRevision, &DownloadableSubscription::SetDataRevision)
+        .property("requiredVersion", &DownloadableSubscription::GetRequiredVersion, &DownloadableSubscription::SetRequiredVersion)
+        .property("downloadCount", &DownloadableSubscription::GetDownloadCount, &DownloadableSubscription::SetDownloadCount)
+        .function("serialize", &DownloadableSubscription::Serialize);
 
-  class_<DownloadableSubscription,Subscription>("DownloadableSubscription")
-      .property("fixedTitle", &DownloadableSubscription::GetFixedTitle, &DownloadableSubscription::SetFixedTitle)
-      .property("homepage", &DownloadableSubscription::GetHomepage, &DownloadableSubscription::SetHomepage)
-      .property("lastCheck", &DownloadableSubscription::GetLastCheck, &DownloadableSubscription::SetLastCheck)
-      .property("expires", &DownloadableSubscription::GetHardExpiration, &DownloadableSubscription::SetHardExpiration)
-      .property("softExpiration", &DownloadableSubscription::GetSoftExpiration, &DownloadableSubscription::SetSoftExpiration)
-      .property("lastDownload", &DownloadableSubscription::GetLastDownload, &DownloadableSubscription::SetLastDownload)
-      .property("downloadStatus", &DownloadableSubscription::GetDownloadStatus, &DownloadableSubscription::SetDownloadStatus)
-      .property("lastSuccess", &DownloadableSubscription::GetLastSuccess, &DownloadableSubscription::SetLastSuccess)
-      .property("errors", &DownloadableSubscription::GetErrorCount, &DownloadableSubscription::SetErrorCount)
-      .property("version", &DownloadableSubscription::GetDataRevision, &DownloadableSubscription::SetDataRevision)
-      .property("requiredVersion", &DownloadableSubscription::GetRequiredVersion, &DownloadableSubscription::SetRequiredVersion)
-      .property("downloadCount", &DownloadableSubscription::GetDownloadCount, &DownloadableSubscription::SetDownloadCount)
-      .function("serialize", &DownloadableSubscription::Serialize);
+    printBindings();
+    RegExpFilter::GenerateCustomBindings();
+    FilterNotifier::GenerateCustomBindings();
 
-  custom_generator(&FilterNotifier::GenerateCustomBindings);
+    return 0;
+  }
+  catch (const std::exception& e)
+  {
+    EM_ASM_ARGS(
+      console.error("Error occurred generating JavaScript bindings: " +
+          Module.AsciiToString($0)), e.what()
+    );
+    return 1;
+  }
 }