0955ca342e
(https://github.com/ruby/erb/pull/49) I was surprised to see erb show up when I was using memory_profiler on my app. ERB::Compiler#compile has a blank string literal, and it ended up allocating some 41532 blank strings for a relatively small surface area. https://github.com/ruby/erb/commit/b7e45c2bdc
48 lines
981 B
Ruby
48 lines
981 B
Ruby
# frozen_string_literal: true
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#--
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# ERB::DefMethod
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#
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# Utility module to define eRuby script as instance method.
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#
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# === Example
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#
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# example.rhtml:
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# <% for item in @items %>
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# <b><%= item %></b>
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# <% end %>
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#
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# example.rb:
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# require 'erb'
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# class MyClass
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# extend ERB::DefMethod
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# def_erb_method('render()', 'example.rhtml')
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# def initialize(items)
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# @items = items
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# end
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# end
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# print MyClass.new([10,20,30]).render()
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#
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# result:
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#
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# <b>10</b>
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#
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# <b>20</b>
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#
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# <b>30</b>
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#
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module ERB::DefMethod
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# define _methodname_ as instance method of current module, using ERB
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# object or eRuby file
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def def_erb_method(methodname, erb_or_fname)
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if erb_or_fname.kind_of? String
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fname = erb_or_fname
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erb = ERB.new(File.read(fname))
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erb.def_method(self, methodname, fname)
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else
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erb = erb_or_fname
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erb.def_method(self, methodname, erb.filename || '(ERB)')
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end
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end
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module_function :def_erb_method
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end
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