Some good explanation from gc-heap-stats package: total_heap_size: Number of bytes V8 has allocated for the heap. This can grow if usedHeap needs more. used_heap_size: Number of bytes in used by application data total_heap_size_executable: Number of bytes for compiled bytecode and JITed code heap_size_limit: The absolute limit the heap cannot exceed (default limit or –max_old_space_size) total_physical_size: … Read more
Basically what you are looking for is V8 Templates. It exposes all your C++ code as JavaScript functions that you can call from within the V8 Virtual Machine. You can associate C++ callbacks when functions are invoked or when specific object properties are accessed (Read Accessors and Interceptors). I found a very good article which … Read more
There is Nodeclipse.org effort. Current version is 0.16 update site is http://www.nodeclipse.org/updates/ When you want to help in any way, start by raising issue Features Creating default structure for New Node Project and New Node Source File Generating Express project with Wizard JavaScript Syntax highlighting Bracket matching and marking selection occurences with background color Content … Read more
You can use J2V8 https://github.com/eclipsesource/J2V8. It’s even available in Maven Central. Below is a Hello, World! program using J2V8. package com.example; import com.eclipsesource.v8.V8; public class EclipseCon_snippet5 { public static class Printer { public void print(String string) { System.out.println(string); } } public static void main(String[] args) { V8 v8 = V8.createV8Runtime(); v8.registerJavaMethod(new Printer(), “print”, “print”, new … Read more
The answer, for now, is no. The [[FunctionLocation]] property you see in Inspector is added in V8Debugger::internalProperties() in the debugger’s C++ code, which uses another C++ function V8Debugger::functionLocation() to gather information about the function. functionLocation() then uses a number of V8-specific C++ APIs such as v8::Function::GetScriptLineNumber() and GetScriptColumnNumber() to find out the exact information. All … Read more
I realize that this may not be an exact answer to your question, but I figured I would put my 2 cents worth in as I doubt to many people have tried this. I got it to work by created a managed wrapper using mixed mode C++. There are other ways to do it, but … Read more
V8 developer here. I can confirm that 2^24 is the maximum number of entries in a Map. That’s not a bug, it’s just the implementation-defined limit. The limit is determined by: The FixedArray backing store of the Map has a maximum size of 1GB (independent of the overall heap size limit) On a 64-bit system … Read more
I haven’t tested this, but it’s possible that something like this will work: // …define and compile “test_function” Handle<v8::Object> global = context->Global(); Handle<v8::Value> value = global->Get(String::New(“test_function”)); if (value->IsFunction()) { Handle<v8::Function> func = v8::Handle<v8::Function>::Cast(value); Handle<Value> args[2]; args[0] = v8::String::New(“value1”); args[1] = v8::String::New(“value2”); Handle<Value> js_result = func->Call(global, 2, args); if (js_result->IsInt32()) { int32_t result = js_result->ToInt32().Value(); // … Read more
Javascript is singled-threaded but the browser is not. The browser has at least three threads: Javascript engine thread, UI thread, and timing thread, where the timing of setTimeout and setInterval are done by the timing thread. When calling setTimeout or setInterval, a timer thread in the browser starts counting down and when time up puts … Read more
exec() is returning only the set of captures for the first match, not the set of matches as you expect. So what you’re really seeing is $0 (the entire match, “a”) and $1 (the first capture)–i.e. an array of length 2. exec() meanwhile is designed so that you can call it again to get the … Read more