Class: Yap::Shell::Evaluation

Inherits:
Object
  • Object
show all
Defined in:
lib/yap/shell/evaluation.rb,
lib/yap/shell/evaluation/shell_expansions.rb

Defined Under Namespace

Classes: ShellExpansions

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(stdin:, stdout:, stderr:, world:) ⇒ Evaluation

Returns a new instance of Evaluation.



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# File 'lib/yap/shell/evaluation.rb', line 10

def initialize(stdin:, stdout:, stderr:, world:)
  @stdin, @stdout, @stderr = stdin, stdout, stderr
  @world = world
end

Instance Attribute Details

#world ⇒ Object (readonly)

Returns the value of attribute world.



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# File 'lib/yap/shell/evaluation.rb', line 8

def world
  @world
end

Instance Method Details

#evaluate(input, &blk) ⇒ Object 



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# File 'lib/yap/shell/evaluation.rb', line 15

def evaluate(input, &blk)
  @blk = blk
  debug_log "evaluation begins input=#{input.inspect}"
  @input = recursively_find_and_replace_command_substitutions(input)
  debug_log "recursive find/replace command substitutions results in input=#{@input.inspect}"
  ast = Parser.parse(@input)
  debug_log "parsed input into AST: #{ast}"
  debug_log "beginning to walk AST"
  ast.accept(self).tap do
    debug_log "done walking AST"
  end
end

#set_last_result(result) ⇒ Object 



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# File 'lib/yap/shell/evaluation.rb', line 28

def set_last_result(result)
  debug_log "evaluation setting last result=#{result.inspect}"
  @world.last_result = result
end