jballanc

require 'benchmark'

class TestBench
  VALUES = { first: "A",
             second: "B",
             third: "C",
             fourth: "D" }

  def check_with_map(val)
    VALUES.fetch(val, "not found")

jballanc

Before abuse of C:

18.902s
18.798s
18.789s
18.921s
18.992s
=======
Avg: 18.880s

jballanc

+ (NSArray *)testInvocations {
    unsigned int methodCount;
    Method *methods = class_copyMethodList(self, &methodCount);
    assert(methodCount);

    Method method;
    SEL methodName;
    NSMethodSignature *methodSig;

    NSMutableArray *invocations = [[NSMutableArray alloc] init];

jballanc

#include <stdio.h>

void method(char* first, char* second, char* third)
{
  printf("method arguments - first: %s, second: %s, third: %s\n", first, second, third);
  return;
}

void wrapped_method(char* first, char* second, char* third);
#define method(first, second, third) wrapped_method((second), (third), (first))

jballanc

def process(input)
  commands = {
    'q' => -> { puts 'Goodbye' },
    'tweet' => -> { puts 'tweeting' },
    'dm' => -> { puts 'direct messaging' },
    'help' => -> { puts 'helping' }
  }
  
  commands.fetch(input, -> {}).call()
end

jballanc

def munger(&block)
  block.binding.eval('b = rand(99)')
end
 
def doit
  a = 1
  b = 2
  munger do; end
  puts "a + b = #{a + b}"
end

jballanc

class FunkyStringComp
  def to_str
    raise "This is some crazy shit..."
  end

  def <=>(oth)
    3.0
  end
end

jballanc

class Greater
  def <=>(other)
    1
  end
end

g = Greater.new
t = Time.now
s = "test"
i = 101

jballanc

###
#
# This is a dirty, dirty trick to write tests that test `require`:
#
module RequireMock
  REQUIRE_SENTINEL = []

  def require(lib)
    REQUIRE_SENTINEL << lib
    super

jballanc

MacRuby Currently

• Implements ~90% of Ruby functionality with some bugs
• Can be used to create OS X desktop applications
• Integrates with XCode
• Uses the Obj-C GC (deprecated)

MacRuby 1.0

• Fix known Ruby compatibility bugs