Lambda style queries for Lotus::Model hanami/model#42

query_bench.rb

#!/usr/bin/env ruby
require 'benchmark'

TIMES = (ENV['TIMES'] || 10_000_000).to_i

class Query
  def where_with_unless(condition = nil, &blk)
    raise ArgumentError, 'You need to specify an condition.' unless condition or block_given?
  end

  def where_with_or_blk(condition = nil, &blk)
    condition or blk or raise ArgumentError.new('You need to specify an condition.')
  end

  def where_with_or_block_given(condition = nil, &blk)
    condition or block_given? or raise ArgumentError.new('You need to specify an condition.')
  end
end

query            =    Query.new
hash_condition   =    { age: 32 }
lambda_condition = -> { age > 32 }


Benchmark.bm(40) do |bm|
  bm.report 'where with unless (rescue)' do
    TIMES.times do
      query.where_with_unless rescue nil
    end
  end

  bm.report 'where with or blk (rescue)' do
    TIMES.times do
      query.where_with_or_blk rescue nil
    end
  end

  bm.report 'where with or block given (rescue)' do
    TIMES.times do
      query.where_with_or_block_given rescue nil
    end
  end

  bm.report 'where with unless (hash)' do
    TIMES.times do
      query.where_with_unless(hash_condition)
    end
  end

  bm.report 'where with or blk (hash)' do
    TIMES.times do
      query.where_with_or_blk(hash_condition)
    end
  end

  bm.report 'where with or block given (hash)' do
    TIMES.times do
      query.where_with_or_block_given(hash_condition)
    end
  end

  bm.report 'where with unless (lambda)' do
    TIMES.times do
      query.where_with_unless(lambda_condition)
    end
  end

  bm.report 'where with or blk (lambda)' do
    TIMES.times do
      query.where_with_or_blk(lambda_condition)
    end
  end

  bm.report 'where with or block given (lambda)' do
    TIMES.times do
      query.where_with_or_block_given(lambda_condition)
    end
  end
end

__END__
Output:
                                               user     system      total        real
where with unless (rescue)                19.650000   0.680000  20.330000 ( 20.343976)
where with or blk (rescue)                20.180000   0.470000  20.650000 ( 20.652801)
where with or block given (rescue)        21.670000   0.610000  22.280000 ( 22.281081)
where with unless (hash)                   1.120000   0.000000   1.120000 (  1.118581)
where with or blk (hash)                   1.070000   0.000000   1.070000 (  1.067491)
where with or block given (hash)           1.190000   0.000000   1.190000 (  1.190203)
where with unless (lambda)                 1.170000   0.000000   1.170000 (  1.174007)
where with or blk (lambda)                 1.130000   0.000000   1.130000 (  1.129684)
where with or block given (lambda)         1.110000   0.000000   1.110000 (  1.111652)

Ruby:

ruby 2.1.2p95 (2014-05-08 revision 45877) [x86_64-darwin13.0]

Hardware:

    Hardware Overview:

      Model Name: MacBook Air
      Model Identifier: MacBookAir5,2
      Processor Name: Intel Core i7
      Processor Speed: 2 GHz
      Number of Processors: 1
      Total Number of Cores: 2
      L2 Cache (per Core): 256 KB
      L3 Cache: 4 MB
      Memory: 8 GB
      Boot ROM Version: MBA51.00EF.B02
      SMC Version (system): 2.5f9

Software:

    System Software Overview:

      System Version: OS X 10.9.4 (13E28)
      Kernel Version: Darwin 13.3.0
      Time since boot: 2 days 12:05