I just found out how to check if operator<< is provided for a type. template<class T> T& lvalue_of_type();
I\'m trying to implement a domain class tha开发者_如何转开发t records when any property\'s value was changed, but my setProperty() call results in infinite recursion when setting the actual value.
You can dynamically define a class method for a class like so: class Foo end bar = %q{def bar() \"bar!\" end}
Why does every source package that uses a makefile come wit开发者_如何学Goh a ./configure script, what does it do? As far as I can tell, it actually generates the makefile?
This question already has answers here: How to find out who called a method? (9 answers) Closed 8 years ago.
I have created a Model class where I define methods based on a method (attribute) called in User (which inherits from Model). The problem is that I cannot override the method defined by define_method,
I am trying to dynamically create a class using the eval method.It is working fine except for one small problem.As my code shows I am creating the开发者_开发知识库 Browser class inside the BrowserFact
I am trying to create a bunch of dynamic helper methods like these: show_admin_sidebar show_posts_sidebar
In my rails model, I have a decimal property called employer_wcb. I wou开发者_JAVA百科ld like it if, when employer_wcb was changed, a dirty bit was set to true.I\'d like to override the employer_wcb s
Some code. In [1]: A = type(\'B\', (), {}) In [2]: a = A() In [3]: b = B() ---------------------------------------------------------------------------开发者_运维知识库
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