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Ruby Exceptions!
Hierarch and usage
NoMemoryError!
NoMemoryError
Raised when
memory
allocation fails.
ScriptError!
ScriptError
Superclass for errors
raised when a script can
not be executed
ScriptError
Hierarch
LoadError
Raised when a file
required fails to load
NotImplementedError
Raised when a
feature is not
implemented on the
current platform
SyntaxError
Raised when
encountering Ruby
code with an invalid
syntax
SignalException!SignalException!
Raised when a
signal is
received
SignalException
SignalException
Hierarch
Interrupt
Raised with the interrupt
signal is received, typically
because the user pressed on
Control-C
StandardError!
StandardError
The most standard error types
are subclasses of
StandardError
StandardError
Hierarch
ArgumentError
Raised when the
arguments are
wrong
IndexError
Raised when the
given index is
invalid.
StopIteration < IndexError
Raised to stop the
iteration, in
particular by
Enumerator#next
IOError
Raised when an IO
operation fails.
EOFError < IOError
Raised by some IO
operations when
reaching the end of
file, nil for example
LocalJumpError
Raised when Ruby
can't yield as
requested
NameError
Raised when a given
name is invalid or
undefined
NoMethodError < NameError
Raised when a
method is called on a
receiver which
doesn't have it
defined
RangeError
Raised when a given
numerical value is
out of range
FloatDomainError < RangeError
Raised when
attempting to
convert special float
values
RegexpError
Raised when given
an invalid regexp
expression.
RuntimeError *default for raise
A generic error class
raised when an
invalid operation is
attempted.
SecurityError
Raised when
attempting a potential
unsafe operation,
typically when the
$SAFE level is raised
above 0.
SystemCallError
SystemCallError is the
base class for all low-
level platform-
dependent errors.
SystemStackError
Raised in case of a
stack overflow.
ThreadError
Raised when an
invalid operation is
attempted on a
thread.
TypeError
Raised when
encountering an
object that is not of
the expected type.
ZeroDivisionError
Raised when
attempting to divide
an integer by 0
SystemExit!
Raised by exit to
initiate the
termination of the
script.
fatal – impossible to
rescue!
Thanks
@johalf
johalffarina@gmail.com

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Ruby exceptions