method

binding

v1_9_1_378 - Show latest stable - Class: Proc

binding()

public

Returns the binding associated with prc. Note that Kernel#eval accepts either a Proc or a Binding object as its second parameter.

def fred(param)
  proc {}
end

b = fred(99)
eval("param", b.binding)   #=> 99

static VALUE
proc_binding(VALUE self)
{
    rb_proc_t *proc;
    VALUE bindval = binding_alloc(rb_cBinding);
    rb_binding_t *bind;

    GetProcPtr(self, proc);
    GetBindingPtr(bindval, bind);

    if (TYPE(proc->block.iseq) == T_NODE) {
        rb_raise(rb_eArgError, "Can't create Binding from C level Proc");
    }

    bind->env = proc->envval;
    return bindval;
}

binding

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