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New Promise and Reference docs #243

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New Promise and Reference docs #243

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jschlight
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Continuing work for nodejs/abi-stable-node#280

```

* `[in] value`: The value which is to be referenced.
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I think we should say

The Value object which is to be referenced.

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LGTM, @gabrielschulhof could you also take a read through.

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mhdawson commented May 1, 2018

@gabrielschulhof ping

@@ -1,5 +1,70 @@
# Promise

You are reading a draft of the next documentation and it's in continuos update so
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nit: common typo: 'continuos' -> 'continuous'


```cpp
Promise::Deferred(napi_env env);
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@gabrielschulhof Do you remember why we expose both a factory and a constructor?

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If you mean the fact that we have both a deferred and a promise, then the reason for that is that with V8 N-API cannot resolve a promise coming in from JavaScript, because it doesn't have the corresponding v8::Resolver.

In reality we could have gone with a single object, as @addaleax points out, but I chose not to because the coincidence between v8::Promise and v8::Promise::Resolver is an internal V8 detail and thus not guaranteed.

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Sorry, I should have been more clear. It seems like these objects have a lot of different mechanisms for construction. Buffer (which I'm documenting) has four factory methods and two constructors. In the process of writing the documentation the factory methods seem clear, but I haven't quite understood the purpose of the public constructors. They seem like the end up putting the object into a weird (and potentially undesirable state).

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Perhaps it's so compilation units written in C can interact with those written in C++?

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@gabrielschulhof I don't think it was anything like that.

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@kfarnung I'd suggest you ask @jasongin as he did a lot of the early work on the module.


* `[in] env`: The `napi_env` environment in which to construct the Reference object.

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nit: extra whitespaces between list items

```

* `[in] env`: The `napi_env` environment in which to create the Deferred object.
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@kfarnung kfarnung May 2, 2018

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nit: looks like other docs use - (hyphen) for list items

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Going to land this and then we can improve through follow on PRs.

mhdawson pushed a commit that referenced this pull request Jun 14, 2018
PR-URL: #243
Reviewed-By: Michael Dawson <[email protected]>
Reviewed-By: Kyle Farnung <[email protected]>
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Landed as 9d38f61

@mhdawson mhdawson closed this Jun 14, 2018
kevindavies8 added a commit to kevindavies8/node-addon-api-Develop that referenced this pull request Aug 24, 2022
PR-URL: nodejs/node-addon-api#243
Reviewed-By: Michael Dawson <[email protected]>
Reviewed-By: Kyle Farnung <[email protected]>
Marlyfleitas added a commit to Marlyfleitas/node-api-addon-Development that referenced this pull request Aug 26, 2022
PR-URL: nodejs/node-addon-api#243
Reviewed-By: Michael Dawson <[email protected]>
Reviewed-By: Kyle Farnung <[email protected]>
wroy7860 added a commit to wroy7860/addon-api-benchmark-node that referenced this pull request Sep 19, 2022
PR-URL: nodejs/node-addon-api#243
Reviewed-By: Michael Dawson <[email protected]>
Reviewed-By: Kyle Farnung <[email protected]>
johnfrench3 pushed a commit to johnfrench3/node-addon-api-git that referenced this pull request Aug 11, 2023
PR-URL: nodejs/node-addon-api#243
Reviewed-By: Michael Dawson <[email protected]>
Reviewed-By: Kyle Farnung <[email protected]>
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4 participants