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Exception: UncaughtThrowError

Relationships & Source Files
Super Chains via Extension / Inclusion / Inheritance
Class Chain:
self, ::ArgumentError, ::StandardError, ::Exception
Instance Chain:
self, ::ArgumentError, ::StandardError, ::Exception
Inherits: ArgumentError
Defined in: vm_eval.c,
vm_eval.c

Overview

Raised when throw is called with a tag which does not have corresponding catch block.

throw "foo", "bar"

raises the exception:

UncaughtThrowError: uncaught throw "foo"

Class Attribute Summary

::Exception - Inherited

.to_tty?

Returns true if exception messages will be sent to a terminal device.

Class Method Summary

  • .new(*args) constructor

    Raised when throw is called with a tag which does not have corresponding catch block.

::Exception - Inherited

.exception

Returns an exception object of the same class as self; useful for creating a similar exception, but with a different message.
.new

Returns a new exception object.

Instance Method Summary

::Exception - Inherited

#==

Returns whether object is the same class as self and its #message and #backtrace are equal to those of self.
#backtrace

Returns the backtrace (the list of code locations that led to the exception), as an array of strings.
#backtrace_locations

Returns the backtrace (the list of code locations that led to the exception), as an array of ::Thread::Backtrace::Location instances.
#cause

Returns the previous value of global variable $!, which may be nil (see Global Variables):
#detailed_message

Returns the message string with enhancements:
#exception

Returns an exception object of the same class as self; useful for creating a similar exception, but with a different message.
#full_message

Returns an enhanced message string:
#inspect

Returns a string representation of self:
#message

Returns #to_s.
#set_backtrace

Sets the backtrace value for self; returns the given #value.
#to_s

Returns a string representation of self:

Constructor Details

.new(*args)

Raised when throw is called with a tag which does not have corresponding catch block.

throw "foo", "bar"

raises the exception:

UncaughtThrowError: uncaught throw "foo"
[ GitHub ] 

  


# File 'vm_eval.c', line 2445



static VALUE
uncaught_throw_init(int argc, const VALUE *argv, VALUE exc)
{
    rb_check_arity(argc, 2, UNLIMITED_ARGUMENTS);
    rb_call_super(argc - 2, argv + 2);
    rb_ivar_set(exc, id_tag, argv[0]);
    rb_ivar_set(exc, id_value, argv[1]);
    return exc;
}


  







Instance Method Details



  

    #tag  ⇒ Object   



  

    

Return the tag object which was called for.


  



  [ GitHub ]


  

  


# File 'vm_eval.c', line 2462



static VALUE
uncaught_throw_tag(VALUE exc)
{
    return rb_ivar_get(exc, id_tag);
}


  








  

    #to_s  ⇒ String   



  

    

Returns formatted message with the inspected tag.


  



  [ GitHub ]


  

  


# File 'vm_eval.c', line 2488



static VALUE
uncaught_throw_to_s(VALUE exc)
{
    VALUE mesg = rb_attr_get(exc, id_mesg);
    VALUE tag = uncaught_throw_tag(exc);
    return rb_str_format(1, &tag, mesg);
}


  








  

    #value  ⇒ Object   



  

    

Return the return value which was called for.


  



  [ GitHub ]


  

  


# File 'vm_eval.c', line 2475



static VALUE
uncaught_throw_value(VALUE exc)
{
    return rb_ivar_get(exc, id_value);
}