Ameba::Rule::Performance::AnyInsteadOfPresent

This rule is used to identify usage of arg-less Enumerable#any? calls.

Using Enumerable#any? instead of Enumerable#present? might lead to unexpected results (like [nil, false].any? # => false). In some cases it also might be less efficient, since it iterates until the block returns a truthy value, instead of just checking if there's at least one value present.

For example, this is considered invalid:

[1, 2, 3].any?

And it should be written as this:

[1, 2, 3].present?

YAML configuration example:

Performance/AnyInsteadOfPresent:
  Enabled: true

This rule is used to identify usage of arg-less Enumerable#any? calls.

Using Enumerable#any? instead of Enumerable#present? might lead to unexpected results (like [nil, false].any? # => false). In some cases it also might be less efficient, since it iterates until the block returns a truthy value, instead of just checking if there's at least one value present.

For example, this is considered invalid:

[1, 2, 3].any?

And it should be written as this:

[1, 2, 3].present?

YAML configuration example:

Performance/AnyInsteadOfPresent:
  Enabled: true

Returns true if this rule is deprecated, false otherwise.

Returns the deprecation reason for this rule, if there is any.

Returns the documentation URL for this rule.

Ameba::Rule::Lint::Syntax.documentation_url
# => "https://crystal-ameba.org/api/master/Ameba/Rule/Lint/Syntax.html"

Returns the documentation for this rule, if there is any.

module Ameba
  # This is a test rule.
  # Does nothing.
  class Rule::MyRule < Rule::Base
    def test(source)
    end
  end
end

Ameba::Rule::MyRule.parsed_doc # => "This is a test rule.\nDoes nothing."