class Mapping::Model

Constants

PREFIX

Public Class Methods

Source

# File vendor/bundle/ruby/3.4.0/gems/mapping-1.1.1/lib/mapping/model.rb, line 36
def self.map(*klasses, &block)
        klasses.each do |klass|
                method_name = self.method_for_mapping(klass)
                define_method(method_name, &block)
        end
end

Add a mapping from a given input class to a specific block.

map_identity (*klasses)

Source

# File vendor/bundle/ruby/3.4.0/gems/mapping-1.1.1/lib/mapping/model.rb, line 44
def self.map_identity(*klasses)
        self.map(*klasses) {|value| value}
end

Sometimes you just want to map things to themselves (the identity function). This makes it convenient to specify a lot of identity mappings.

method_for_mapping (klass)

Source

# File vendor/bundle/ruby/3.4.0/gems/mapping-1.1.1/lib/mapping/model.rb, line 26
def self.method_for_mapping(klass)
        PREFIX + klass.name.gsub(/::/, '_')
end

This function generates mapping names like ‘map_Array` and `map_Hash` which while a bit non-standard are perfectly fine for our purposes and this never really needs to leak.

unmap (*klasses)

Source

# File vendor/bundle/ruby/3.4.0/gems/mapping-1.1.1/lib/mapping/model.rb, line 49
def self.unmap(*klasses)
        klasses.each do |klass|
                method_name = self.method_for_mapping(klass)
                undef_method(method_name)
        end
end

Remove a mapping, usually an inherited one, which you don’t want.

Public Instance Methods

map (root, *args)

Source

# File vendor/bundle/ruby/3.4.0/gems/mapping-1.1.1/lib/mapping/model.rb, line 57
def map(root, *args)
        method_name = self.method_for_mapping(root)
        
        self.send(method_name, root, *args)
end

The primary function, which maps an input object to an output object.

method_for_mapping (object)

Source

# File vendor/bundle/ruby/3.4.0/gems/mapping-1.1.1/lib/mapping/model.rb, line 31
def method_for_mapping(object)
        self.class.method_for_mapping(object.class)
end

Get the name of the method for mapping the given object.