Class: Opal::Nodes::Args::ExtractRestarg
- Defined in:
- opal/lib/opal/nodes/args/extract_restarg.rb
Overview
This node is responsible for extracting a splat argument from post-arguments
args_to_keep is the number of required post-arguments
def m(*a, b, c, d); end becomes something like: a = post_args[0..-3] post_args = post_args[-3..-1]
Instance Attribute Summary
Attributes inherited from Base
Attributes included from Closure::NodeSupport
Instance Method Summary collapse
Methods inherited from Base
#add_gvar, #add_ivar, #add_local, #add_temp, #children, children, #class_variable_owner, #class_variable_owner_nesting_level, #comments, #compile_to_fragments, #error, #expr, #expr?, #expr_or_empty, #expr_or_nil, #fragment, handle, handlers, #has_rescue_else?, #helper, #in_ensure, #in_ensure?, #in_resbody, #in_resbody?, #in_rescue, #in_while?, #initialize, #process, #push, #recv, #recv?, #s, #scope, #source_location, #stmt, #stmt?, #top_scope, truthy_optimize?, #unshift, #while_loop, #with_temp, #wrap
Methods included from Closure::NodeSupport
#closure_is?, #compile_catcher, #generate_thrower, #generate_thrower_without_catcher, #in_closure, #pop_closure, #push_closure, #select_closure, #thrower
Methods included from Helpers
#current_indent, #empty_line, #indent, #js_truthy, #js_truthy_optimize, #line, #mid_to_jsid, #property, #valid_name?
Constructor Details
This class inherits a constructor from Opal::Nodes::Base
Instance Method Details
#compile ⇒ Object
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# File 'opal/lib/opal/nodes/args/extract_restarg.rb', line 21 def compile # def m(*) # arguments are assigned to `$rest_arg` for super call name = self.name || '$rest_arg' add_temp name if args_to_keep == 0 # no post-args, we are free to grab everything push "#{name} = $post_args" else push "#{name} = $post_args.splice(0, $post_args.length - #{args_to_keep})" end end |