Class: Opal::Nodes::HashNode
Constant Summary
Constants included from Helpers
Opal::Nodes::Helpers::BASIC_IDENTIFIER_RULES , Opal::Nodes::Helpers::ES3_RESERVED_WORD_EXCLUSIVE , Opal::Nodes::Helpers::ES51_RESERVED_WORD , Opal::Nodes::Helpers::IMMUTABLE_PROPS
Instance Attribute Summary
Attributes inherited from Base
Instance Method Summary collapse
- #compile ⇒ Object
- #compile_hash ⇒ Object
- #compile_hash2(keys, values) ⇒ Object
- #keys_and_values ⇒ Object
- #simple_keys?(keys) ⇒ Boolean
Methods inherited from Base
#add_gvar , #add_ivar , #add_local , #add_temp , children , #children , #compile_to_fragments , #error , #expr , #expr? , #expr_or_nil , #fragment , handle , handlers , #helper , #in_while? , #initialize , #process , #push , #recv , #recv? , #s , #scope , #stmt , #stmt? , #unshift , #while_loop , #with_temp , #wrap
Methods included from Helpers
#current_indent , #empty_line , #indent , #js_falsy , #js_truthy , #js_truthy_optimize , #line , #lvar_to_js , #mid_to_jsid , #property , #valid_name? , #variable
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/hash.rb', line 26 def compile keys, values = keys_and_values if simple_keys? keys compile_hash2 keys, values else compile_hash end end
#compile_hash ⇒ Object
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# File 'opal/lib/opal/nodes/hash.rb', line 36 def compile_hash helper :hash children.each_with_index do |child, idx| push ', ' unless idx == 0 push expr(child) end wrap '$hash(', ')' end
#compile_hash2(keys, values) ⇒ Object
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# File 'opal/lib/opal/nodes/hash.rb', line 47 def compile_hash2(keys, values) hash_obj, hash_keys = {}, [] helper :hash2 keys.size.times do |idx| key = keys[idx][1].to_s.inspect hash_keys << key unless hash_obj.include? key hash_obj[key] = expr(values[idx]) end hash_keys.each_with_index do |key, idx| push ', ' unless idx == 0 push "#{key}: " push hash_obj[key] end wrap "$hash2([#{hash_keys.join ', '}], {", "})" end
#keys_and_values ⇒ Object
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# File 'opal/lib/opal/nodes/hash.rb', line 8 def keys_and_values keys, values = [], [] children.each_with_index do |obj, idx| if idx.even? keys << obj else values << obj end end [keys, values] end
#simple_keys?(keys) ⇒ Boolean
Returns:
- (Boolean)
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# File 'opal/lib/opal/nodes/hash.rb', line 22 def simple_keys?(keys) keys.all? { |key| [:sym, :str].include? key.type } end