'nil' dereference
Reports possible nil
dereferences. Dereferencing nil
may cause a NoMethodError
.
Use the Ignored receivers list to specify method calls used as receivers that should be ignored (for example, Foo#call
or Foo::call
for an instance or a singleton method respectively).
Example:
def foo
rand(2) == 1 ? nil : 1
end
a = foo
a.nomethod # method invocation may produce NoMethodError
Locating this inspection
- By ID
Can be used to locate inspection in e.g. Qodana configuration files, where you can quickly enable or disable it, or adjust its settings.
RubyNilAnalysis- Via Settings dialog
Path to the inspection settings via IntelliJ Platform IDE Settings dialog, when you need to adjust inspection settings directly from your IDE.
Inspection options
Here you can find the description of settings available for the 'nil' dereference inspection, and the reference of their default values.
- Ignored receivers
[Array#[], Enumerable#group_by, Hash#[]]
Availability
- By default bundled with
- Can be installed with plugin
Ruby, 241.SNAPSHOT
Last modified: 18 June 2024