deps: cherry-pick dbfe4a49d8 from upstream V8

Original commit message:

    Introduce ScriptOrModule and HostDefinedOptions

    This patch introduces a new container type ScriptOrModule which
    provides the name and the host defined options of the script/module.

    This patch also introduces a new PrimitivesArray that can hold
    Primitive values, which the embedder can use to store metadata.

    The HostDefinedOptions is passed to V8 through the ScriptOrigin, and
    passed back to the embedder through HostImportModuleDynamically for
    module loading.

    Bug: v8:5785, v8:6658, v8:6683
    Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
    Change-Id: I56c26fc9a680b273ac0a6691e5ad75f15b8dc80a
    Reviewed-on: https://chromium-review.googlesource.com/622158
    Reviewed-by: Adam Klein <adamk@chromium.org>
    Reviewed-by: Georg Neis <neis@chromium.org>
    Commit-Queue: Sathya Gunasekaran <gsathya@chromium.org>
    Cr-Commit-Position: refs/heads/master@{#47724}

PR-URL: #16889
Refs: v8/v8@dbfe4a4
Refs: #15713
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Michaël Zasso <targos@protonmail.com>

Author: Jan Krems

common.gypi

@@ -27,7 +27,7 @@
 
     # Reset this number to 0 on major V8 upgrades.
     # Increment by one for each non-official patch applied to deps/v8.
-    'v8_embedder_string': '-node.11',
+    'v8_embedder_string': '-node.12',
 
     # Enable disassembler for `--print-code` v8 options
     'v8_enable_disassembler': 1,

deps/v8/include/v8.h

@@ -104,6 +104,7 @@ class String;
 class StringObject;
 class Symbol;
 class SymbolObject;
+class PrimitiveArray;
 class Private;
 class Uint32;
 class Utils;
@@ -978,6 +979,48 @@ class V8_EXPORT Data {
   Data();
 };
 
+/**
+ * This is an unfinished experimental feature, and is only exposed
+ * here for internal testing purposes. DO NOT USE.
+ *
+ * A container type that holds relevant metadata for module loading.
+ *
+ * This is passed back to the embedder as part of
+ * HostImportDynamicallyCallback for module loading.
+ */
+class V8_EXPORT ScriptOrModule {
+ public:
+  /**
+   * The name that was passed by the embedder as ResourceName to the
+   * ScriptOrigin. This can be either a v8::String or v8::Undefined.
+   */
+  Local<Value> GetResourceName();
+
+  /**
+   * The options that were passed by the embedder as HostDefinedOptions to
+   * the ScriptOrigin.
+   */
+  Local<PrimitiveArray> GetHostDefinedOptions();
+};
+
+/**
+ * This is an unfinished experimental feature, and is only exposed
+ * here for internal testing purposes. DO NOT USE.
+ *
+ * An array to hold Primitive values. This is used by the embedder to
+ * pass host defined options to the ScriptOptions during compilation.
+ *
+ * This is passed back to the embedder as part of
+ * HostImportDynamicallyCallback for module loading.
+ *
+ */
+class V8_EXPORT PrimitiveArray {
+ public:
+  static Local<PrimitiveArray> New(Isolate* isolate, int length);
+  int Length() const;
+  void Set(int index, Local<Primitive> item);
+  Local<Primitive> Get(int index);
+};
 
 /**
  * The optional attributes of ScriptOrigin.
@@ -1027,13 +1070,15 @@ class ScriptOrigin {
       Local<Value> source_map_url = Local<Value>(),
       Local<Boolean> resource_is_opaque = Local<Boolean>(),
       Local<Boolean> is_wasm = Local<Boolean>(),
-      Local<Boolean> is_module = Local<Boolean>());
+      Local<Boolean> is_module = Local<Boolean>(),
+      Local<PrimitiveArray> host_defined_options = Local<PrimitiveArray>());
 
   V8_INLINE Local<Value> ResourceName() const;
   V8_INLINE Local<Integer> ResourceLineOffset() const;
   V8_INLINE Local<Integer> ResourceColumnOffset() const;
   V8_INLINE Local<Integer> ScriptID() const;
   V8_INLINE Local<Value> SourceMapUrl() const;
+  V8_INLINE Local<PrimitiveArray> HostDefinedOptions() const;
   V8_INLINE ScriptOriginOptions Options() const { return options_; }
 
  private:
@@ -1043,6 +1088,7 @@ class ScriptOrigin {
   ScriptOriginOptions options_;
   Local<Integer> script_id_;
   Local<Value> source_map_url_;
+  Local<PrimitiveArray> host_defined_options_;
 };
 
 /**
@@ -1289,6 +1335,7 @@ class V8_EXPORT ScriptCompiler {
     Local<Integer> resource_column_offset;
     ScriptOriginOptions resource_options;
     Local<Value> source_map_url;
+    Local<PrimitiveArray> host_defined_options;
 
     // Cached data from previous compilation (if a kConsume*Cache flag is
     // set), or hold newly generated cache data (kProduce*Cache flags) are
@@ -6209,8 +6256,8 @@ typedef void (*DeprecatedCallCompletedCallback)();
  * embedder to load a module. This is used as part of the dynamic
  * import syntax.
  *
- * The referrer is the name of the file which calls the dynamic
- * import. The referrer can be used to resolve the module location.
+ * The referrer contains metadata about the script/module that calls
+ * import.
  *
  * The specifier is the name of the module that should be imported.
  *
@@ -6225,7 +6272,8 @@ typedef void (*DeprecatedCallCompletedCallback)();
  * that exception by returning an empty MaybeLocal.
  */
 typedef MaybeLocal<Promise> (*HostImportModuleDynamicallyCallback)(
-    Local<Context> context, Local<String> referrer, Local<String> specifier);
+    Local<Context> context, Local<ScriptOrModule> referrer,
+    Local<String> specifier);
 
 /**
  * PromiseHook with type kInit is called when a new promise is
@@ -9545,7 +9593,8 @@ ScriptOrigin::ScriptOrigin(Local<Value> resource_name,
                            Local<Integer> script_id,
                            Local<Value> source_map_url,
                            Local<Boolean> resource_is_opaque,
-                           Local<Boolean> is_wasm, Local<Boolean> is_module)
+                           Local<Boolean> is_wasm, Local<Boolean> is_module,
+                           Local<PrimitiveArray> host_defined_options)
     : resource_name_(resource_name),
       resource_line_offset_(resource_line_offset),
       resource_column_offset_(resource_column_offset),
@@ -9555,10 +9604,14 @@ ScriptOrigin::ScriptOrigin(Local<Value> resource_name,
                !is_wasm.IsEmpty() && is_wasm->IsTrue(),
                !is_module.IsEmpty() && is_module->IsTrue()),
       script_id_(script_id),
-      source_map_url_(source_map_url) {}
+      source_map_url_(source_map_url),
+      host_defined_options_(host_defined_options) {}
 
 Local<Value> ScriptOrigin::ResourceName() const { return resource_name_; }
 
+Local<PrimitiveArray> ScriptOrigin::HostDefinedOptions() const {
+  return host_defined_options_;
+}
 
 Local<Integer> ScriptOrigin::ResourceLineOffset() const {
   return resource_line_offset_;
@@ -9575,7 +9628,6 @@ Local<Integer> ScriptOrigin::ScriptID() const { return script_id_; }
 
 Local<Value> ScriptOrigin::SourceMapUrl() const { return source_map_url_; }
 
-
 ScriptCompiler::Source::Source(Local<String> string, const ScriptOrigin& origin,
                                CachedData* data)
     : source_string(string),
@@ -9584,9 +9636,9 @@ ScriptCompiler::Source::Source(Local<String> string, const ScriptOrigin& origin,
       resource_column_offset(origin.ResourceColumnOffset()),
       resource_options(origin.Options()),
       source_map_url(origin.SourceMapUrl()),
+      host_defined_options(origin.HostDefinedOptions()),
       cached_data(data) {}
 
-
 ScriptCompiler::Source::Source(Local<String> string,
                                CachedData* data)
     : source_string(string), cached_data(data) {}

deps/v8/src/api.cc

@@ -278,6 +278,8 @@ static ScriptOrigin GetScriptOriginForScript(i::Isolate* isolate,
                                              i::Handle<i::Script> script) {
   i::Handle<i::Object> scriptName(script->GetNameOrSourceURL(), isolate);
   i::Handle<i::Object> source_map_url(script->source_mapping_url(), isolate);
+  i::Handle<i::FixedArray> host_defined_options(script->host_defined_options(),
+                                                isolate);
   v8::Isolate* v8_isolate =
       reinterpret_cast<v8::Isolate*>(script->GetIsolate());
   ScriptOriginOptions options(script->origin_options());
@@ -290,7 +292,8 @@ static ScriptOrigin GetScriptOriginForScript(i::Isolate* isolate,
       Utils::ToLocal(source_map_url),
       v8::Boolean::New(v8_isolate, options.IsOpaque()),
       v8::Boolean::New(v8_isolate, script->type() == i::Script::TYPE_WASM),
-      v8::Boolean::New(v8_isolate, options.IsModule()));
+      v8::Boolean::New(v8_isolate, options.IsModule()),
+      Utils::ToLocal(host_defined_options));
   return origin;
 }
 
@@ -2082,13 +2085,68 @@ Local<Value> Script::Run() {
   RETURN_TO_LOCAL_UNCHECKED(Run(context), Value);
 }
 
+Local<Value> ScriptOrModule::GetResourceName() {
+  i::Handle<i::Script> obj = Utils::OpenHandle(this);
+  i::Isolate* isolate = obj->GetIsolate();
+  ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate);
+  i::Handle<i::Object> val(obj->name(), isolate);
+  return ToApiHandle<Value>(val);
+}
+
+Local<PrimitiveArray> ScriptOrModule::GetHostDefinedOptions() {
+  i::Handle<i::Script> obj = Utils::OpenHandle(this);
+  i::Isolate* isolate = obj->GetIsolate();
+  ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate);
+  i::Handle<i::FixedArray> val(obj->host_defined_options(), isolate);
+  return ToApiHandle<PrimitiveArray>(val);
+}
 
 Local<UnboundScript> Script::GetUnboundScript() {
   i::Handle<i::Object> obj = Utils::OpenHandle(this);
   return ToApiHandle<UnboundScript>(
       i::Handle<i::SharedFunctionInfo>(i::JSFunction::cast(*obj)->shared()));
 }
 
+// static
+Local<PrimitiveArray> PrimitiveArray::New(Isolate* v8_isolate, int length) {
+  i::Isolate* isolate = reinterpret_cast<i::Isolate*>(v8_isolate);
+  ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate);
+  Utils::ApiCheck(length >= 0, "v8::PrimitiveArray::New",
+                  "length must be equal or greater than zero");
+  i::Handle<i::FixedArray> array = isolate->factory()->NewFixedArray(length);
+  return ToApiHandle<PrimitiveArray>(array);
+}
+
+int PrimitiveArray::Length() const {
+  i::Handle<i::FixedArray> array = Utils::OpenHandle(this);
+  i::Isolate* isolate = array->GetIsolate();
+  ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate);
+  return array->length();
+}
+
+void PrimitiveArray::Set(int index, Local<Primitive> item) {
+  i::Handle<i::FixedArray> array = Utils::OpenHandle(this);
+  i::Isolate* isolate = array->GetIsolate();
+  ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate);
+  Utils::ApiCheck(index >= 0 && index < array->length(),
+                  "v8::PrimitiveArray::Set",
+                  "index must be greater than or equal to 0 and less than the "
+                  "array length");
+  i::Handle<i::Object> i_item = Utils::OpenHandle(*item);
+  array->set(index, *i_item);
+}
+
+Local<Primitive> PrimitiveArray::Get(int index) {
+  i::Handle<i::FixedArray> array = Utils::OpenHandle(this);
+  i::Isolate* isolate = array->GetIsolate();
+  ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate);
+  Utils::ApiCheck(index >= 0 && index < array->length(),
+                  "v8::PrimitiveArray::Get",
+                  "index must be greater than or equal to 0 and less than the "
+                  "array length");
+  i::Handle<i::Object> i_item(array->get(index), isolate);
+  return ToApiHandle<Primitive>(i_item);
+}
 
 Module::Status Module::GetStatus() const {
   i::Handle<i::Module> self = Utils::OpenHandle(this);
@@ -2225,11 +2283,16 @@ MaybeLocal<UnboundScript> ScriptCompiler::CompileUnboundInternal(
     TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("v8.compile"), "V8.CompileScript");
     i::Handle<i::Object> name_obj;
     i::Handle<i::Object> source_map_url;
+    i::Handle<i::FixedArray> host_defined_options =
+        isolate->factory()->empty_fixed_array();
     int line_offset = 0;
     int column_offset = 0;
     if (!source->resource_name.IsEmpty()) {
       name_obj = Utils::OpenHandle(*(source->resource_name));
     }
+    if (!source->host_defined_options.IsEmpty()) {
+      host_defined_options = Utils::OpenHandle(*(source->host_defined_options));
+    }
     if (!source->resource_line_offset.IsEmpty()) {
       line_offset = static_cast<int>(source->resource_line_offset->Value());
     }
@@ -2243,7 +2306,7 @@ MaybeLocal<UnboundScript> ScriptCompiler::CompileUnboundInternal(
     result = i::Compiler::GetSharedFunctionInfoForScript(
         str, name_obj, line_offset, column_offset, source->resource_options,
         source_map_url, isolate->native_context(), NULL, &script_data, options,
-        i::NOT_NATIVES_CODE);
+        i::NOT_NATIVES_CODE, host_defined_options);
     has_pending_exception = result.is_null();
     if (has_pending_exception && script_data != NULL) {
       // This case won't happen during normal operation; we have compiled
@@ -2508,6 +2571,10 @@ MaybeLocal<Script> ScriptCompiler::Compile(Local<Context> context,
   if (!origin.ResourceName().IsEmpty()) {
     script->set_name(*Utils::OpenHandle(*(origin.ResourceName())));
   }
+  if (!origin.HostDefinedOptions().IsEmpty()) {
+    script->set_host_defined_options(
+        *Utils::OpenHandle(*(origin.HostDefinedOptions())));
+  }
   if (!origin.ResourceLineOffset().IsEmpty()) {
     script->set_line_offset(
         static_cast<int>(origin.ResourceLineOffset()->Value()));
@@ -9828,7 +9895,8 @@ MaybeLocal<UnboundScript> debug::CompileInspectorScript(Isolate* v8_isolate,
         i::Handle<i::Object>(), isolate->native_context(), NULL, &script_data,
         ScriptCompiler::kNoCompileOptions,
         i::FLAG_expose_inspector_scripts ? i::NOT_NATIVES_CODE
-                                         : i::INSPECTOR_CODE);
+                                         : i::INSPECTOR_CODE,
+        i::Handle<i::FixedArray>());
     has_pending_exception = result.is_null();
     RETURN_ON_FAILED_EXECUTION(UnboundScript);
   }

deps/v8/src/api.h

@@ -111,7 +111,10 @@ class RegisteredExtension {
   V(NativeWeakMap, JSWeakMap)                  \
   V(debug::GeneratorObject, JSGeneratorObject) \
   V(debug::Script, Script)                     \
-  V(Promise, JSPromise)
+  V(Promise, JSPromise)                        \
+  V(Primitive, Object)                         \
+  V(PrimitiveArray, FixedArray)                \
+  V(ScriptOrModule, Script)
 
 class Utils {
  public:
@@ -209,6 +212,12 @@ class Utils {
       v8::internal::Handle<v8::internal::JSWeakMap> obj);
   static inline Local<Function> CallableToLocal(
       v8::internal::Handle<v8::internal::JSReceiver> obj);
+  static inline Local<Primitive> ToLocalPrimitive(
+      v8::internal::Handle<v8::internal::Object> obj);
+  static inline Local<PrimitiveArray> ToLocal(
+      v8::internal::Handle<v8::internal::FixedArray> obj);
+  static inline Local<ScriptOrModule> ScriptOrModuleToLocal(
+      v8::internal::Handle<v8::internal::Script> obj);
 
 #define DECLARE_OPEN_HANDLE(From, To) \
   static inline v8::internal::Handle<v8::internal::To> \
@@ -325,6 +334,9 @@ MAKE_TO_LOCAL(Uint32ToLocal, Object, Uint32)
 MAKE_TO_LOCAL(ExternalToLocal, JSObject, External)
 MAKE_TO_LOCAL(NativeWeakMapToLocal, JSWeakMap, NativeWeakMap)
 MAKE_TO_LOCAL(CallableToLocal, JSReceiver, Function)
+MAKE_TO_LOCAL(ToLocalPrimitive, Object, Primitive)
+MAKE_TO_LOCAL(ToLocal, FixedArray, PrimitiveArray)
+MAKE_TO_LOCAL(ScriptOrModuleToLocal, Script, ScriptOrModule)
 
 #undef MAKE_TO_LOCAL_TYPED_ARRAY
 #undef MAKE_TO_LOCAL

deps/v8/src/bootstrapper.cc

@@ -3539,7 +3539,8 @@ bool Bootstrapper::CompileNative(Isolate* isolate, Vector<const char> name,
   Handle<SharedFunctionInfo> function_info =
       Compiler::GetSharedFunctionInfoForScript(
           source, script_name, 0, 0, ScriptOriginOptions(), Handle<Object>(),
-          context, NULL, NULL, ScriptCompiler::kNoCompileOptions, natives_flag);
+          context, NULL, NULL, ScriptCompiler::kNoCompileOptions, natives_flag,
+          Handle<FixedArray>());
   if (function_info.is_null()) return false;
 
   DCHECK(context->IsNativeContext());
@@ -3602,7 +3603,7 @@ bool Genesis::CompileExtension(Isolate* isolate, v8::Extension* extension) {
     function_info = Compiler::GetSharedFunctionInfoForScript(
         source, script_name, 0, 0, ScriptOriginOptions(), Handle<Object>(),
         context, extension, NULL, ScriptCompiler::kNoCompileOptions,
-        EXTENSION_CODE);
+        EXTENSION_CODE, Handle<FixedArray>());
     if (function_info.is_null()) return false;
     cache->Add(name, function_info);
   }

deps/v8/src/compiler.cc

@@ -1192,7 +1192,8 @@ Handle<SharedFunctionInfo> Compiler::GetSharedFunctionInfoForScript(
     int column_offset, ScriptOriginOptions resource_options,
     Handle<Object> source_map_url, Handle<Context> context,
     v8::Extension* extension, ScriptData** cached_data,
-    ScriptCompiler::CompileOptions compile_options, NativesFlag natives) {
+    ScriptCompiler::CompileOptions compile_options, NativesFlag natives,
+    Handle<FixedArray> host_defined_options) {
   Isolate* isolate = source->GetIsolate();
   if (compile_options == ScriptCompiler::kNoCompileOptions) {
     cached_data = NULL;
@@ -1288,6 +1289,9 @@ Handle<SharedFunctionInfo> Compiler::GetSharedFunctionInfoForScript(
     if (!source_map_url.is_null()) {
       script->set_source_mapping_url(*source_map_url);
     }
+    if (!host_defined_options.is_null()) {
+      script->set_host_defined_options(*host_defined_options);
+    }
 
     // Compile the function and add it to the cache.
     ParseInfo parse_info(script);

deps/v8/src/compiler.h

@@ -113,7 +113,7 @@ class V8_EXPORT_PRIVATE Compiler : public AllStatic {
       Handle<Object> source_map_url, Handle<Context> context,
       v8::Extension* extension, ScriptData** cached_data,
       ScriptCompiler::CompileOptions compile_options,
-      NativesFlag is_natives_code);
+      NativesFlag is_natives_code, Handle<FixedArray> host_defined_options);
 
   // Create a shared function info object for a Script that has already been
   // parsed while the script was being loaded from a streamed source.