noop_primitive_operations

Noop primitive operations.

Some operations on primitive types are idempotent and can be removed.

BAD:

doubleValue.toDouble(); ​ intValue.toInt(); intValue.round(); intValue.ceil(); intValue.floor(); intValue.truncate(); ​ string.toString(); string = 'hello\n'  ''  'world'; ​ 'string with ${x.toString()}'; 

Note that the empty string literals at the beginning or end of a string are allowed, as they are typically used to format the string literal across multiple lines:

// OK string = ''  'hello\n'  'world\n'; ​ // OK string = 'hello\n'  'world\n'  ''; 

To enable the noop_primitive_operations rule, add noop_primitive_operations under linter > rules in your analysis_options.yaml file:

linter:  rules:  - noop_primitive_operations 

If you're instead using the YAML map syntax to configure linter rules, add noop_primitive_operations: true under linter > rules:

linter:  rules:  noop_primitive_operations: true