void rb_define_readonly_variable(const char *name, VALUE *var)You can defined hooked variables. The accessor functions (getter and setter) are called on access to the hooked variables.void rb_define_hooked_variable(const char *name, VALUE *var,VALUE (*getter)(), void (*setter)())...
void rb_define_readonly_variable(const char *name, VALUE *var) You can defined hooked variables. The accessor functions (getter and setter) are called on access to the hooked variables. void rb_define_hooked_variable(const char *name, VALUE *var, VALUE (*getter)(), void (*setter)()) ...
RUBY_MAX_CPU=n environment variable sets maximum number of N (maximum number of native threads). The default value is 8. Since only one Ruby thread per Ractor can run at the same time, the number of native threads will be used, which is the smaller of the number specified in RUBY_MAX...
Install Ruby through a version manager While Ruby is installed by default on some operating systems (such as macOS and some distributions of Linux), we recommend using a version manager such asrbenvto be able to access newer versions of Ruby on Windows, macOS, and Linux. Follow theinstallation...
Finally, we callModule.newto create the module that we are going to return. Here we need to define ourself.includedmethod, but unfortunately we cannot do that with thedefkeyword, as the method needs access to the outsideclass_methodsvariable. Therefore, we have to usedefine_methodwith a blo...
* Support multiple arguments in `HashWithIndifferentAccess` for `merge` and `update` methods, to follow Ruby 2.6 addition. *Wojciech Wnętrzak* * Allow initializing `thread_mattr_*` attributes via `:default` option. class Scraper thread_mattr_reader :client, default: Api::Client.new ...
We can achieve this in Ruby because class definitions are executed. The export* methods can run arbitrary code and have access to the class definition that they're running within. Without any syntactic sugar, a part definition that exports the 'answer' contract looks like: Other parts that imp...
To check if the variable is set, try printenv | grep SELENIUM:1 $ printenv | grep SELENIUM 2 SELENIUM_SERVER_JAR=/home/zeljko/bin/ 3 selenium-server-standalone-2.39.0.jar Looks good to me!Quick StartYou will need internet access if you want to follow examples in this chapter. If ...
Client libraries will read this environment variable if it is set. Finally, you can override credentials in code by setting the credentials field in the client configuration. This can be set globally on the client class or provided when you construct a client object. For more information, see ...
Updates Sets versus Arrays For Loops versus each Make Decisions at Load Time Self Modifying Code Test Most Frequent Case First Optimize Access to Global Constants Caching Data in Instance Variables Caching Data in Class Variables Coding Variable Caching Efficiently Initializing Variables with nil Using ...