Class: Simple::Service::Context

Inherits:
Object
  • Object
show all
Defined in:
lib/simple/service/context.rb

Constant Summary collapse

IDENTIFIER_PATTERN = 
"[a-z][a-z0-9_]*"
IDENTIFIER_REGEXP = 
Regexp.compile("\\A#{IDENTIFIER_PATTERN}\\z")
ASSIGNMENT_REGEXP = 
Regexp.compile("\\A(#{IDENTIFIER_PATTERN})=\\z")

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Context

Returns a new instance of Context.



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# File 'lib/simple/service/context.rb', line 3

def initialize
  @hsh = {}
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(sym, *args, &block) ⇒ Object 



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# File 'lib/simple/service/context.rb', line 27

def method_missing(sym, *args, &block)
  if block
    super
  elsif args.count == 0 && sym =~ IDENTIFIER_REGEXP
    self[sym]
  elsif args.count == 1 && sym =~ ASSIGNMENT_REGEXP
    self[$1.to_sym] = args.first
  else
    super
  end
end

Instance Method Details

#[](key) ⇒ Object 



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# File 'lib/simple/service/context.rb', line 11

def [](key)
  key = key.to_sym
  @hsh[key]
end

#[]=(key, value) ⇒ Object 



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# File 'lib/simple/service/context.rb', line 16

def []=(key, value)
  key = key.to_sym
  existing_value = @hsh[key]

  unless existing_value.nil? || existing_value == value
    raise "Cannot overwrite existing context setting #{key.inspect}"
  end

  @hsh[key] = value
end

#respond_to_missing?(sym, include_private = false) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/simple/service/context.rb', line 39

def respond_to_missing?(sym, include_private = false)
  return true if IDENTIFIER_REGEXP.maptch?(sym)
  return true if ASSIGNMENT_REGEXP.maptch?(sym)

  super
end