Exception: LocalJumpError

Inherits:
StandardError show all
Defined in:
proc.c

Overview

Raised when Ruby can't yield as requested.

A typical scenario is attempting to yield when no block is given:

def call_block
  yield 42
end
call_block

raises the exception:

LocalJumpError: no block given (yield)

A more subtle example:

def get_me_a_return
  Proc.new { return 42 }
end
get_me_a_return.call

raises the exception:

LocalJumpError: unexpected return

Instance Method Summary collapse

Methods inherited from Exception

#==, #backtrace, exception, #exception, #initialize, #inspect, #message, #set_backtrace, #to_s

Constructor Details

This class inherits a constructor from Exception

Instance Method Details

#exit_valueObject

call_seq:

local_jump_error.exit_value  -> obj

Returns the exit value associated with this LocalJumpError.



# File 'proc.c'

/*
 * call_seq:
 *   local_jump_error.exit_value  -> obj
 *
 * Returns the exit value associated with this +LocalJumpError+.
 */
static VALUE
localjump_xvalue(VALUE exc)
{
    return rb_iv_get(exc, "@exit_value");
}

#reasonObject

The reason this block was terminated: :break, :redo, :retry, :next, :return, or :noreason.



# File 'proc.c'

/*
 * call-seq:
 *    local_jump_error.reason   -> symbol
 *
 * The reason this block was terminated:
 * :break, :redo, :retry, :next, :return, or :noreason.
 */

static VALUE
localjump_reason(VALUE exc)
{
    return rb_iv_get(exc, "@reason");
}