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src: expose MaybeInitializeContext to allow existing contexts #28544

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src: expose MaybeInitializeContext to allow existing contexts #28544

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98b6cf5
src: expose MaybeInitializeContext to allow existing contexts
MarshallOfSound Jul 4, 2019
2dcfc04
src: update MaybeInitializeContext to return MaybeLocal
MarshallOfSound Jul 16, 2019
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7 changes: 7 additions & 0 deletions src/api/environment.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -362,6 +362,13 @@ Local<Context> NewContext(Isolate* isolate,
Local<ObjectTemplate> object_template) {
auto context = Context::New(isolate, nullptr, object_template);
if (context.IsEmpty()) return context;

return MaybeInitializeContext(context, object_template);
}

Local<Context> MaybeInitializeContext(Local<Context> context,
Local<ObjectTemplate> object_template) {
Isolate* isolate = context->GetIsolate();
HandleScope handle_scope(isolate);

context->SetEmbedderData(ContextEmbedderIndex::kAllowWasmCodeGeneration,
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6 changes: 6 additions & 0 deletions src/node.h
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Expand Up @@ -305,6 +305,12 @@ NODE_EXTERN v8::Local<v8::Context> NewContext(
v8::Local<v8::ObjectTemplate> object_template =
v8::Local<v8::ObjectTemplate>());

// Runs Node.js-specific tweaks on an already constructed context
NODE_EXTERN v8::Local<v8::Context> MaybeInitializeContext(
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@joyeecheung joyeecheung Jul 5, 2019

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For legacy reasons NewContext still need to return a Local, but for a new API I think we should return a MaybeLocal here. I would drop the word Maybe in the function name in favor of a more practical signature.

v8::Local<v8::Context> context,
v8::Local<v8::ObjectTemplate> object_template =
v8::Local<v8::ObjectTemplate>());

// If `platform` is passed, it will be used to register new Worker instances.
// It can be `nullptr`, in which case creating new Workers inside of
// Environments that use this `IsolateData` will not work.
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