ruby metaprogramming

Read Ruby metaprogramming and ruby metaprogrammingUsing many spells and Ruby's programming skills to implement many clever programming:Array parametersSurrounding aliasWhiteboardClass ExtensionClass ExtensionClass instance variablesClass macrosClean RoomCode ProcessorContext probesDelayed executionDynamic DistributionDynamic MethodDynamic proxyFlat ScopeGhost Met

I have recently considered a lot of metaprogramming (metaprogramming) issues and would like to see more examples and explanations of this technology. For better or worse, Metaprogramming has entered the Ruby community and is a standard way to accomplish various tasks and simplify code. Since I can't find this kind of r

Basic Learning notes for Ruby metaprogramming and ruby learning notes Note 1:The Code contains variables, classes, and methods, collectively referred to as language construct ). # test.rbclass Greeting def initialize(text) @text = text end def welcome @text endendmy_obj = Greeting.new("hello")puts my_obj.classputs my_obj.class.instance_methods(false) #false mea

Ruby metaprogramming and ruby Programming An object model Kernel Module Kernel. private_instance_methods.grep (/^ pr /) Private method 1. If a method receiver is not yourself, you must specify a receiver. 2. A private method can only specify one implicit receiver (a private method that can be called as a superclass) The Class itself is the object of the

Opening Empty is the color, and the color is empty.Empty and empty, in the Ruby language, everything is an object. Ruby is an object-oriented language (object oriented Language), and the object-oriented concept is much more robust than other languages. The raw type data and object type data in Java are not present in Ruby. Most of the stuff in

Metaprogramming is a program that can operate other programs. for example, macros in C language are an advanced technique in programming. here we will take a look at the basics of Ruby Metaprogramming. Note 1:The code contains variables, classes, and methods, collectively referred to as language construct ). # test.rbclass Greeting def initialize(text) @text

Ruby metaprogramming is worth noting. Avoid infinite loop metaprogramming. Do not confuse the core class (do not use monkey patch) when writing a function library ). It is best to use the code block form in the string interpolation form.When you use string interpolation, _ FILE _ and _ LINE __are always provided to make your backtracking meaningful. class_eval '

Metaprogramming is a ruby feature that can dynamically modify the language structure, such as the class structure, module structure, and instance variable information. You can evenProgramAdd and run the newCodeYou do not need to restart your program. 1. This document describes how to use attr_accessor, attr_reader, and attr_writer. Class person # can contain multiple parameters to automatically generate

An object consists of a group of instance variables and a class reference. Object methods exist in the class to which the object belongs (from the class perspective, they are called instance methods ). The class itself is the object of the class. The class name is just a constant. A class is a subclass of a module. A module is basically a package composed of a group of methods. In addition to the features of modules, classes can also be instantiated (through the new () method) and

module A;endmodule B; include A;def hi; puts "Hello gays! enjoy Ruby! ";end; endclass C; include B; end$f = File.open("metaProgram.rb")$lines = $f.readlinesdef p(a,no)#$f.readline until $f.lineno == (no-1) #puts "#{a}------>->->#{$f.readline}" puts "#{a}------>->->#{$lines[no-1]}"endp(C p( B p( C p( Fixnum p( Integer p( Integer p( String p( A.ancestors,__LINE__)p( B.ancestors,__LINE__)p( C.ancestors,__LINE__)p( String.ancestors,__LINE__)p(

Metaprogrammingisthewritingofcomputerprogramsthatwriteormanipulateotherprograms (orthemselves) astheirdata, orthatdopartoftheworkatcompiletimethatwouldotherwisebedonerecognition Metaprogramming Is the writing of computer programs That write or manipulate other programs (or themselves) as their data, OrThat do part of the work at compile time That wocould otherwise be done at runtime . In some cases, this allows programmers to minimize the numb

language likeRuby or groovy, Required implies capabilities that extend existing object models, add hooks to alter the behaviors of existing methods (or even classes), and synthesize new methods, properties, or modules during runtime through introspection. Ages likeLISPUse macros as the metaprogramming tool that let you syntactically extend the language during the compilation stage. although the primary form of m