Class: Gobstones::Runner::ProgramExecutionContext

Inherits:
ExecutionContext show all
Defined in:
lib/gobstones/runner/execution_context.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from ExecutionContext

#clear, for_program, #get, #has_variable_named?, #set

Constructor Details

#initialize(program) ⇒ ProgramExecutionContext

Returns a new instance of ProgramExecutionContext.



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# File 'lib/gobstones/runner/execution_context.rb', line 50

def initialize(program)
  super()
  @head = Head.new
  @program = program
end

Instance Attribute Details

#head ⇒ Object (readonly)

Returns the value of attribute head.



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# File 'lib/gobstones/runner/execution_context.rb', line 44

def head
  @head
end

Class Method Details

.for(program) ⇒ Object 



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# File 'lib/gobstones/runner/execution_context.rb', line 46

def self.for(program)
  new(program)
end

Instance Method Details

#board ⇒ Object 



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# File 'lib/gobstones/runner/execution_context.rb', line 66

def board
  head.board
end

#definition_named(name, found_block, not_found_block) ⇒ Object 



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# File 'lib/gobstones/runner/execution_context.rb', line 56

def definition_named(name, found_block, not_found_block)
  if_none = proc { return not_found_block.call }
  found_definition = @program.definitions.detect(if_none) { |definition| definition.named?(name) }
  found_block.call(found_definition)
end

#program_context ⇒ Object 



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# File 'lib/gobstones/runner/execution_context.rb', line 62

def program_context
  self
end