method

binding

v1_8_7_72 - Show latest stable - 0 notes - Class: Kernel

binding() public

Returns a Binding object, describing the variable and method bindings at the point of call. This object can be used when calling eval to execute the evaluated command in this environment. Also see the description of class Binding.

   def getBinding(param)
     return binding
   end
   b = getBinding("hello")
   eval("param", b)   #=> "hello"

Show source

/*
 *  call-seq:
 *     binding -> a_binding
 *  
 *  Returns a +Binding+ object, describing the variable and
 *  method bindings at the point of call. This object can be used when
 *  calling +eval+ to execute the evaluated command in this
 *  environment. Also see the description of class +Binding+.
 *     
 *     def getBinding(param)
 *       return binding
 *     end
 *     b = getBinding("hello")
 *     eval("param", b)   #=> "hello"
 */

static VALUE
rb_f_binding(self)
    VALUE self;
{
    struct BLOCK *data, *p;
    struct RVarmap *vars;
    VALUE bind;

    PUSH_BLOCK(0,0);
    bind = Data_Make_Struct(rb_cBinding,struct BLOCK,blk_mark,blk_free,data);
    *data = *ruby_block;

    data->orig_thread = rb_thread_current();
    data->wrapper = ruby_wrapper;
    data->iter = rb_f_block_given_p();
    frame_dup(&data->frame);
    if (ruby_frame->prev) {
        data->frame.last_func = ruby_frame->prev->last_func;
        data->frame.last_class = ruby_frame->prev->last_class;
        data->frame.orig_func = ruby_frame->prev->orig_func;
    }

    if (data->iter) {
        blk_copy_prev(data);
    }
    else {
        data->prev = 0;
    }

    for (p = data; p; p = p->prev) {
        for (vars = p->dyna_vars; vars; vars = vars->next) {
            if (FL_TEST(vars, DVAR_DONT_RECYCLE)) break;
            FL_SET(vars, DVAR_DONT_RECYCLE);
        }
    }
    scope_dup(data->scope);
    POP_BLOCK();

    return bind;
}

binding

Related methods