lib/clli.rb
Always use raise
to signal exceptions. Open
Open
fail "#{str.inspect} is not a valid CLLI." if match_data.nil?
- Read upRead up
- Exclude checks
This cop checks for uses of fail
and raise
.
Example: EnforcedStyle: only_raise (default)
# The `only_raise` style enforces the sole use of `raise`.
# bad
begin
fail
rescue Exception
# handle it
end
def watch_out
fail
rescue Exception
# handle it
end
Kernel.fail
# good
begin
raise
rescue Exception
# handle it
end
def watch_out
raise
rescue Exception
# handle it
end
Kernel.raise
Example: EnforcedStyle: only_fail
# The `only_fail` style enforces the sole use of `fail`.
# bad
begin
raise
rescue Exception
# handle it
end
def watch_out
raise
rescue Exception
# handle it
end
Kernel.raise
# good
begin
fail
rescue Exception
# handle it
end
def watch_out
fail
rescue Exception
# handle it
end
Kernel.fail
Example: EnforcedStyle: semantic
# The `semantic` style enforces the use of `fail` to signal an
# exception, then will use `raise` to trigger an offense after
# it has been rescued.
# bad
begin
raise
rescue Exception
# handle it
end
def watch_out
# Error thrown
rescue Exception
fail
end
Kernel.fail
Kernel.raise
# good
begin
fail
rescue Exception
# handle it
end
def watch_out
fail
rescue Exception
raise 'Preferably with descriptive message'
end
explicit_receiver.fail
explicit_receiver.raise
When using method_missing
, define respond_to_missing?
. Open
Open
def method_missing(method, *args)
return @attributes[method] if @attributes.key?(method)
super
end
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- Exclude checks
This cop checks for the presence of method_missing
without also
defining respond_to_missing?
and falling back on super
.
Example:
#bad
def method_missing(name, *args)
# ...
end
#good
def respond_to_missing?(name, include_private)
# ...
end
def method_missing(name, *args)
# ...
super
end