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Use method_missing #1

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Use method_missing #1

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be85424
Use method_missing
Frank-Roland Apr 30, 2018
0c8ec6e
Avoid splat operator and use symbol
theldoria May 1, 2018
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59 changes: 10 additions & 49 deletions lib/mf/public_api.rb
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Original file line number Diff line number Diff line change
@@ -1,33 +1,18 @@
module Mf
module PublicApi
# Math infix operators

def +(b)
proc { |a| a + b }
end

def -(b)
proc { |a| a - b }
end

def *(b)
proc { |a| a * b }
end

def /(b)
proc { |a| a / b }
end

def %(b)
proc { |a| a % b }
end

def **(b)
proc { |a| a ** b }
# Handle most operators
def method_missing(cmd, *args)
eigenclass = class << self; self; end
cmd_sym = cmd.to_sym
eigenclass.class_eval do
define_method(cmd_sym) do |b|
proc { |a| a.send(cmd_sym, b) }
end
end
send(cmd, *args)
end

# Comparators

def >(b)
proc { |a| a > b }
end
Expand Down Expand Up @@ -57,29 +42,5 @@ def ==(b)
def ===(b)
proc { |a| b === a }
end

# Bit Operators

def |(b)
proc { |a| a | b }
end

def &(b)
proc { |a| a & b }
end

def >>(b)
proc { |a| a >> b }
end

def <<(b)
proc { |a| a << b }
end

# Bracket Accessors

def [](b)
proc { |a| a[b] }
end
end
end