Class: Vernier::StackTableHelpers::Stack

Inherits:
BaseType
  • Object
show all
Defined in:
lib/vernier/stack_table_helpers.rb

Instance Attribute Summary

Attributes inherited from BaseType

#idx, #stack_table

Instance Method Summary collapse

Methods inherited from BaseType

#initialize, #inspect

Constructor Details

This class inherits a constructor from Vernier::StackTableHelpers::BaseType

Instance Method Details

#[](offset) ⇒ Object

Raises:

  • (RangeError) 


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# File 'lib/vernier/stack_table_helpers.rb', line 116

def [](offset)
  raise RangeError if offset < 0
  stack_idx = idx
  while stack_idx && offset > 0
    stack_idx = stack_table.stack_parent_idx(stack_idx)
    offset -= 1
  end
  if stack_idx && offset == 0
    Frame.new(stack_table, stack_table.stack_frame_idx(stack_idx))
  end
end

#each ⇒ Object Also known as: each_frame 



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# File 'lib/vernier/stack_table_helpers.rb', line 104

def each
  return enum_for(__method__) unless block_given?

  stack_idx = idx
  while stack_idx
    frame_idx = stack_table.stack_frame_idx(stack_idx)
    yield Frame.new(stack_table, frame_idx)
    stack_idx = stack_table.stack_parent_idx(stack_idx)
  end
end

#frames ⇒ Object 



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# File 'lib/vernier/stack_table_helpers.rb', line 136

def frames
  each_frame.to_a
end

#leaf_frame ⇒ Object 



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# File 'lib/vernier/stack_table_helpers.rb', line 132

def leaf_frame
  Frame.new(stack_table, leaf_frame_idx)
end

#leaf_frame_idx ⇒ Object 



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# File 'lib/vernier/stack_table_helpers.rb', line 128

def leaf_frame_idx
  stack_table.stack_frame_idx(idx)
end

#to_s ⇒ Object 



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# File 'lib/vernier/stack_table_helpers.rb', line 140

def to_s
  arr = []
  each_frame do |frame|
    arr << frame.to_s
  end
  arr.join("\n")
end