Class: Y2R::AST::YCP::If

Inherits:
Node
  • Object
show all
Defined in:
lib/y2r/ast/ycp.rb

Instance Method Summary collapse

Methods inherited from Node

#compile_as_copy_if_needed, #compile_statements, #compile_statements_inside_block, #compile_statements_with_whitespace, #creates_local_scope?, #needs_copy?, #never_nil?, #optimize_last_statement, #optimize_next, #optimize_return, #remove_duplicate_imports, transfers_comments

Instance Method Details

#always_returns? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/y2r/ast/ycp.rb', line 1397

def always_returns?
  if self.then && self.else
    self.then.always_returns? && self.else.always_returns?
  else
    # If there is just one branch present, execution can always
    # continue because the branch may not be taken.
    false
  end
end

#compile(context) ⇒ Object 



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# File 'lib/y2r/ast/ycp.rb', line 1374

def compile(context)
  then_context = context.disable_elsif
  then_compiled = compile_statements(self.then, then_context)

  if self.else
    else_context = if self.else.is_a?(If)
      context.enable_elsif
    else
      context.disable_elsif
    end
    else_compiled = compile_statements(self.else, else_context)
  else
    else_compiled = nil
  end

  Ruby::If.new(
    :condition => cond.compile(context),
    :then      => then_compiled,
    :else      => else_compiled,
    :elsif     => !!context.elsif_mode
  )
end