Class: RuboCop::Cop::Lecture::ExplainSymbolToProc

Inherits:
Base
  • Object
show all
Defined in:
lib/rubocop/cop/lecture/explain_symbol_to_proc.rb

Overview

foo.bar(&:baz) は次のコードと同じです。

foo.bar do |x|

x.baz

end

Examples:

# good
["a","b","c"].map do |x|
  x.upcase
end

# good
["a","b","c"].map(&:upcase)

Constant Summary collapse

MSG = 
<<~STRING
  foo.bar(&:baz) は次のコードと同じです。

  foo.bar do |x|
    x.baz
  end
STRING

Instance Method Summary collapse

Instance Method Details

#on_send(node) ⇒ Object 



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# File 'lib/rubocop/cop/lecture/explain_symbol_to_proc.rb', line 30

def on_send(node)
  block_pass_potential_node = node.arguments.first
  if block_pass_potential_node &&
     block_pass_potential_node.type == :block_pass &&
     block_pass_potential_node.child_nodes.first.sym_type?
    add_offense(node)
  end
end