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doc: call js function in null context

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It's good practice now to call JS functions that don't execute in a
specific scope with v8::Null() as the receiver.  Update the addons
documentation.

PR-URL: https://github.com/iojs/io.js/pull/1125
Reviewed-By: Rod Vagg <rod@vagg.org>
Reviewed-By: Trevor Norris <trev.norris@gmail.com>
This commit is contained in:
Ben Noordhuis 2015-03-11 14:19:21 +01:00
parent 55abf34be5
commit 99c79f8d41
1 changed files with 2 additions and 1 deletions
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doc/api/addons.markdown
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@ -215,6 +215,7 @@ there. Here's `addon.cc`:
using v8::HandleScope; using v8::HandleScope;
using v8::Isolate; using v8::Isolate;
using v8::Local; using v8::Local;
using v8::Null;
using v8::Object; using v8::Object;
using v8::String; using v8::String;
using v8::Value; using v8::Value;
@ -224,7 +225,7 @@ there. Here's `addon.cc`:
Local<Function> cb = Local<Function>::Cast(args[0]); Local<Function> cb = Local<Function>::Cast(args[0]);
const unsigned argc = 1; const unsigned argc = 1;
Local<Value> argv[argc] = { String::NewFromUtf8(isolate, "hello world") }; Local<Value> argv[argc] = { String::NewFromUtf8(isolate, "hello world") };
cb->Call(isolate->GetCurrentContext()->Global(), argc, argv); cb->Call(Null(isolate), argc, argv);
} }
void Init(Local<Object> exports, Local<Object> module) { void Init(Local<Object> exports, Local<Object> module) {