Module: FastRuby::NonLocalTranslator

Defined in:
lib/fastruby/translator/modules/nonlocal.rb

Instance Method Summary collapse

Instance Method Details

#to_c_break(tree, result_var = nil) ⇒ Object 



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# File 'lib/fastruby/translator/modules/nonlocal.rb', line 38

def to_c_break(tree, result_var = nil)
  
    value_tmp_var = "value_" + rand(10000000).to_s
  
    code = "

      {
     VALUE #{value_tmp_var} = Qnil; 
     #{
     if tree[1]
       to_c(tree[1], value_tmp_var)
     end
     };

     typeof(pframe) target_frame_;
     target_frame_ = (void*)plocals->call_frame;

     if (target_frame_ == 0) {
        #{_raise("rb_eLocalJumpError","illegal break")};
     }

     plocals->call_frame = 0;

     target_frame_->return_value = #{value_tmp_var};
     target_frame_->targetted = 1;
     pframe->thread_data->exception = Qnil;
     longjmp(pframe->jmp,FASTRUBY_TAG_BREAK);
     
     }
     "
     
     if result_var
       code
     else
       inline_block code
     end
end

#to_c_next(tree, result_var = nil) ⇒ Object 



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# File 'lib/fastruby/translator/modules/nonlocal.rb', line 113

def to_c_next(tree, result_var = nil)
  tmp_varname = "_acc_" + rand(10000000).to_s
  if @on_block
   code = "
    {
      last_expression = Qnil;
      
      #{
      if tree[1]
        to_c(tree[1],"last_expression")
      end
      }
    pframe->thread_data->accumulator = last_expression;
    goto fastruby_local_next;
    }
    "
    if result_var
      code
    else
      inline_block code
    end
  else
    _raise("rb_eLocalJumpError","illegal next");
  end
end

#to_c_redo(tree, result_var = nil) ⇒ Object 



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# File 'lib/fastruby/translator/modules/nonlocal.rb', line 97

def to_c_redo(tree, result_var = nil)
  if @on_block
     code = "
        goto fastruby_local_redo;
      "
      
      if result_var
        code
      else
        inline_block code
      end
  else
      _raise("rb_eLocalJumpError","illegal redo");
  end
end

#to_c_retry(tree, result_var = nil) ⇒ Object 



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# File 'lib/fastruby/translator/modules/nonlocal.rb', line 76

def to_c_retry(tree, result_var = nil)
    code = "
      {
     typeof(pframe) target_frame_;
     target_frame_ = (void*)plocals->call_frame;

     if (target_frame_ == 0) {
        #{_raise("rb_eLocalJumpError","illegal retry")};
     }

     target_frame_->targetted = 1;
     longjmp(pframe->jmp,FASTRUBY_TAG_RETRY);
     }
     "
   if result_var
     code
   else
     inline_block code
   end
end

#to_c_return(tree, return_variable = nil) ⇒ Object 



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# File 'lib/fastruby/translator/modules/nonlocal.rb', line 25

def to_c_return(tree, return_variable = nil)
  code = "
    #{to_c(tree[1],"last_expression")};
    goto local_return;
    return Qnil;
    "
  if return_variable
    code
  else
    inline_block code
  end
end