Class: Opal::Nodes::BackRefNode
- Inherits:
-
GlobalVariableNode
- Object
- Base
- GlobalVariableNode
- Opal::Nodes::BackRefNode
- Defined in:
- opal/lib/opal/nodes/variables.rb
Overview
back_ref can be: $` $' $& $+ (currently unsupported)
Instance Attribute Summary
Attributes inherited from Base
Attributes included from Closure::NodeSupport
Instance Method Summary collapse
- #compile ⇒ Object
- #handle_global_match ⇒ Object
- #handle_post_match ⇒ Object
- #handle_pre_match ⇒ Object
Methods inherited from GlobalVariableNode
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/variables.rb', line 121 def compile helper :gvars case var_name when '&' handle_global_match when "'" handle_post_match when '`' handle_pre_match when '+' super else raise NotImplementedError end end |
#handle_global_match ⇒ Object
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# File 'opal/lib/opal/nodes/variables.rb', line 138 def handle_global_match with_temp do |tmp| push "((#{tmp} = $gvars['~']) === nil ? nil : #{tmp}['$[]'](0))" end end |
#handle_post_match ⇒ Object
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# File 'opal/lib/opal/nodes/variables.rb', line 150 def handle_post_match with_temp do |tmp| push "((#{tmp} = $gvars['~']) === nil ? nil : #{tmp}.$post_match())" end end |
#handle_pre_match ⇒ Object
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# File 'opal/lib/opal/nodes/variables.rb', line 144 def handle_pre_match with_temp do |tmp| push "((#{tmp} = $gvars['~']) === nil ? nil : #{tmp}.$pre_match())" end end |