Class: Delfos::CallStack::Stack

Inherits:
Object
  • Object
show all
Defined in:
lib/delfos/call_stack/stack.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(on_empty: nil) ⇒ Stack

Returns a new instance of Stack.



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# File 'lib/delfos/call_stack/stack.rb', line 5

def initialize(on_empty: nil)
  @on_empty = on_empty
end

Instance Attribute Details

#call_sites ⇒ Object 



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# File 'lib/delfos/call_stack/stack.rb', line 39

def call_sites
  @call_sites ||= []
end

#execution_count ⇒ Object 



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# File 'lib/delfos/call_stack/stack.rb', line 35

def execution_count
  @execution_count ||= 0
end

#stack_depth ⇒ Object 



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# File 'lib/delfos/call_stack/stack.rb', line 31

def stack_depth
  @stack_depth ||= 0
end

#step_count ⇒ Object 



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# File 'lib/delfos/call_stack/stack.rb', line 43

def step_count
  call_sites.length
end

Instance Method Details

#pop ⇒ Object 



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# File 'lib/delfos/call_stack/stack.rb', line 16

def pop
  popping_empty_stack! if self.stack_depth.zero?

  self.stack_depth -= 1

  if stack_depth.zero? && call_sites.length.positive?
    @on_empty&.call(call_sites, execution_count)
    self.call_sites = []
  end
end

#pop_until_top! ⇒ Object 



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# File 'lib/delfos/call_stack/stack.rb', line 27

def pop_until_top!
  pop while self.stack_depth.positive?
end

#push(method_object) ⇒ Object 



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# File 'lib/delfos/call_stack/stack.rb', line 9

def push(method_object)
  call_sites.push(method_object)
  self.stack_depth += 1

  self.execution_count += self.stack_depth == 1 ? 1 : 0
end