Module: GetArgs
- Included in:
- Method, UnboundMethod
- Defined in:
- lib/rails_action_args/mri_args.rb,
lib/rails_action_args/native.rb,
lib/rails_action_args/vm_args.rb,
lib/rails_action_args/jruby_args.rb
Overview
Used in mapping controller arguments to the params hash. NOTE: You must have the ‘ruby2ruby’ gem installed for this to work.
Examples
# In PostsController def show(id) #=> id is the same as params
Constant Summary collapse
- Methods =
org.jruby.internal.runtime.methods
Instance Method Summary collapse
- #build_args(args_node) ⇒ Object
-
#get_args ⇒ Object
Returns Array:: Method arguments and their default values.
Instance Method Details
#build_args(args_node) ⇒ Object
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# File 'lib/rails_action_args/jruby_args.rb', line 25 def build_args(args_node) args = [] required = [] optional = [] # required args if (args_node.args && args_node.args.size > 0) required << args_node.args.child_nodes.map { |arg| [arg.name.to_s.intern] } end # optional args if (args_node.opt_args && args_node.opt_args.size > 0) optional << args_node.opt_args.child_nodes.map do |arg| name = arg.name.to_s.intern value_node = arg.value_node case value_node when org.jruby.ast::FixnumNode value = value_node.value when org.jruby.ast::SymbolNode value = value_node.get_symbol(JRuby.runtime) when org.jruby.ast::StrNode value = value_node.value else value = nil end [name, value] end end first_args = required.first optional.first.each {|arg| first_args << arg} if optional.first args = [first_args] rest = args_node.rest_arg_node args << (rest ? rest.name.to_s.intern : nil) block = args_node.block_arg_node args << (block ? block.name.to_s.intern : nil) args end |
#get_args ⇒ Object
Returns
- Array
-
Method arguments and their default values.
Examples
class Example def hello(one,two=“two”,three) end
def goodbye end end
Example.instance_method(:hello).get_args #=> [[:one], [:two, “two”], [:three, “three”]] Example.instance_method(:goodbye).get_args #=> nil
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# File 'lib/rails_action_args/mri_args.rb', line 82 def get_args required = [] optional = [] parameters.each do |(type, name)| if type == :opt required << [name, nil] optional << name else required << [name] end end return [required, optional] end |