Regarding the code sample that Ben kindly provided here -
I checked it out, and I'm afraid it should be written with
GetPropertyNames(), not GetOwnPropertyNames() ...
On Monday, March 24, 2014 at 9:03:23 AM UTC+2, Michael Klimontov wrote:
>
> Hello guys. I need your help for solve this question.
>
> I am want loading cfg.js in context.
> In any action we will loading and working with scr_1.js. In scr_1 changing
> vals from cfg.js. After will need working with scr_2 where have clear vars
> from cfg.js, but they changed in prev work with scr_1.
> How are correct work with context and copy they?
>
> Thanks for your.
>
> ___ cfg.js ___
>
> var a = { a : 22522, b : '123' };
> // Define common functions ....
>
> ___ scr_1.js ___
>
> function test_function(test_arg1,test_arg2)
> {
> log("Src 1");
> log(a.a)
> a.a = 9999;
> log("Src 1 -> new a = " a.a)
> return 0;
> }
>
> ___ scr_2.js ___
>
> function test_function(test_arg1,test_arg2)
> {
> log(a.a)
> return 0;
> }
>
> ___ main.cpp ___
>
> int main(int argc, char* argv[])
> {
> v8::V8::InitializeICU();
>
> Isolate* isolate = Isolate::GetCurrent();
> HandleScope handle_scope(isolate);
>
>
> Handle<ObjectTemplate> global_cfg = ObjectTemplate::New(isolate);
> global_cfg->Set(String::NewFromUtf8(isolate, "log"),
> FunctionTemplate::New(isolate, LogCallback));
> Persistent<Context> persistent_context;
>
> {
> v8::Handle<v8::Context> context_global = Context::New(isolate,
> NULL, global_cfg);
> persistent_context.Reset(isolate, context_global);
>
> v8::Local<v8::Context> context_tmp =
> v8::Local<v8::Context>::New(isolate, persistent_context);
> Context::Scope context_scope_tmp(context_tmp);
> Handle<String> source2 = ReadFile(isolate, "cfg.js");
> v8::Handle<v8::Script> script2 = Script::Compile(source2);
> script2->Run();
> }
>
>
> // Run test 1. Need copy context with out change.
> // After run test_function a = new value
> {
> HandleScope handle_scope(isolate);
> v8::Local<v8::Context> context_tmp =
> v8::Local<v8::Context>::New(isolate, persistent_context);
> context_tmp->Enter();
>
> Context::Scope context_scope_tmp(context_tmp);
> HandleScope handle_scope(isolate);
>
> Handle<String> source = ReadFile(isolate, "scr_1.js");
> v8::Handle<v8::Script> script = Script::Compile(source);
> // ! run function test_function
> script->Run();
> context_tmp->Exit();
> }
>
> // Run test 2. Need copy context without change.
> {
> HandleScope handle_scope(isolate);
> v8::Local<v8::Context> context_tmp =
> v8::Local<v8::Context>::New(isolate, persistent_context);
> context_tmp->Enter();
>
> Context::Scope context_scope_tmp(context_tmp);
> HandleScope handle_scope(isolate);
>
> Handle<String> source = ReadFile(isolate, "scr_1.js");
> v8::Handle<v8::Script> script = Script::Compile(source);
> // This val must equal var a = { a : 22522, b : '123' }, but test1
> changes it.
> script->Run();
>
>
> context_tmp->Exit();
> }
> }
>
>
--
--
v8-users mailing list
[email protected]
http://groups.google.com/group/v8-users
---
You received this message because you are subscribed to the Google Groups
"v8-users" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
For more options, visit https://groups.google.com/d/optout.
