The Ruby method that is invoked on an object when you send it a message (or call a method) that it doesn't understand.
The method_missing method is used to respond to methods when you don't know what methods you need to understand until runtime.
Questions tagged [method-missing]
124 questions
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1 answer
Ruby: I need help understanding the following code involving method_missing(method, *args, &block)
I came across this code while trying to learn about creating your own method_missing method, and I don't understand it.
What I don't understand are these parts: method_sym[-1] == "=" and method_sym[0..-2]
What do they refer to? I tried some…
Olivier Girardot
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- 16
1
vote
1 answer
How to use method_missing in Ruby
I have a homework problem to create a simple DSL configuration for Ruby.
The problem is in method_missing. I need to print out values of keys, but they're printing out automaticaly, not by command.
init.rb:
require_relative…
user11086399
1
vote
1 answer
Which is correct REPL or command-line?
when i write method missing in Object class i'm getting the output different in each interface.
the code is
class Object
def method_missing(hgh)
puts self
end
end
when i use REPL like irb, i get
when i use the command line, i get no error,…
Ramireddy Samar
- 127
- 4
1
vote
3 answers
Ruby blocks with method_missing
Note, this is a follow up to my question here.
I'm trying to parse the following Tcl code:
foo bar {
biz buzz
}
In Tcl, foo is the method name, bar is the argument, and the rest is a "block" to be processed by eval.
Now here is my current…
elmt
- 1,604
- 14
- 24
1
vote
2 answers
Use Ruby to parse a Tcl DSL
I would like to be able to parse some Tcl code where arguments are not surrounded by strings.
Consider this tcl code:
proc foo {name} {
puts "Foo --> $name"
}
foo bar
For those unfamiliar with Tcl, foo is the method name and bar is the…
elmt
- 1,604
- 14
- 24
1
vote
3 answers
Ruby "method_missing" Running a method once it was created
I'm trying to implement a code that automatically creates a method if it fits a certain keyword, with the help of method_missing.
This works so far:
class Add
def initialize()
@result = ""
end
def output()
puts…
mre
- 137
- 11
1
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1 answer
Rails: method_missing leads to StackOverflowError
When triggering a call to method_missing on a Rails server running in development mode, it dies with a StackOverflowError. This is a Rails5 on JRuby environment. We are not using multi-threading here.
The behavior can be summarized as follows:
The…
Kalsan
- 822
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1
vote
1 answer
Objective C Singleton method not available in Swift Interface
I've been looking for documents of reasons of why a singleton method definition in Objective-C class is not available on the Swift interface on Xcode.
The Objective-C class is defined like this
/**
* A general accessor across the sample App to…
Paolo Pascua
- 123
- 1
- 15
1
vote
1 answer
Where should I define method_missing in a Cucumber Ruby framework?
I have a Ruby-Cucumber framework. I need to use the method method_missing to avoid writing a few repetitive functions. Where should I place my method_missing? In any .rb file under the support folder? Or should it go in some different specific file?
Aks..
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2 answers
Method_missing not running when it should
I have a Team class in my program and I am trying to use method_missing
but instead of running the function when the method doesn't exist, it gives me an error:"undefined method `hawks' for Team:Class (NoMethodError)"
My code is as follows:
class…
Avyay Varadarajan
- 45
- 7
1
vote
1 answer
Global "method_missing" in PHP?
Possible Duplicate:
Magic functions __call() for functions?
I can implement __call() to provide method_missing behavior in PHP classes. Is there some way to provide the same functionality in the global scope?
I want something like this:
function…
Jamie Hale
- 1,529
- 2
- 10
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3 answers
ruby: method_missing backtick typo?
I was building a method to send me an email through mutt when my ruby scripts fail. It looks something like this:
begin
UnknownFunction()
rescue
subject = 'Error'
to_array = ['email@email.com','email2@email.com']
body = "An error…
dukebd711
- 15
- 2
1
vote
2 answers
Executing the &block in method_missing in Ruby
I've just began learning about blocks and using method_missing in Ruby classes, and I've noticed the general formula is
def method_missing(sym, *args, &block)
My question is if it's possible to execute the &block in the output. For example:
class…
reichertjalex
- 121
- 1
- 5
1
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3 answers
Ruby -- force method_missing *args to be hash?
I want to define a method_missing function for one of my classes, and I want to be able to pass in a hash as the argument list instead of an array. Like this:
MyClass::get_by_id {:id => id}
MyClass::get_by_id {:id => id, :filters =>…
kid_drew
- 3,857
- 6
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- 38
1
vote
1 answer
Cannot define method_missing in top Object
When I try define(by loading script&just typing in the pry) method_missing in pry it just exit to console(cmd on windows xp).
When I try typing it on the IRB, it goes into infinite loop or when I try loading the script(irb m.rb) it shows something…
Darek Nędza
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