V8 JavaScript Engine getting started 4-Basic Concepts

V8 JavaScript engine has very few documents. I only found two documents:

1. Official embedder's Guide: http://code.google.com/apis/v8/embed.html
Http://blog.csdn.net/ffr225/archive/2010/08/13/5809766.aspx.

2. Using V8-Google's Chrome Javascript Virtual Machine http://goo.gl/DRso
Http://goo.gl/RyxE and http://goo.gl/QiYV

Basic Concepts

L handle: handle. All V8 objects are accessed through the handle. V8's garbage collection mechanism is also based on the handle.

L scope: handle range, which can be considered as a container of the handle, so that you do not need to delete the handle one by one.

L context: execution environment, which can be viewed as the execution environment of JavaScript, so that unrelated javascript can be executed in a V8 instance.CodeAnd complement each other.

L templates: template, which is the blueprint of JavaScript Functions and objects in a context.

L accessors: The accessors are a C ++ callback function that calculates and returns a value. It is called when an object property is accessed by a Javascript script.

L interceptors: Interceptor, which is called when a callback function is specified to access the attributes of any object by a script.

L Security Model: security model. The same-source policy prevents scripts and documents loaded from one source from accessing or setting documents from another source. In V8, the same-source is defined as a context

L exceptions: exception. You can use trycatch to catch exceptions. If you do not set trycatch correctly, your code will crash.

L inheritance: inheritance. Javascript is a type-independent, object-oriented language that uses prototype inheritance rather than class inheritance.