Rename RedundantParentheses -> ParenthesesAroundCondition

Also rename the option: `parenthesized_assignments` -> `allow_safe_assignment`

spec/ameba/rule/style/parentheses_around_condition_spec.cr

@@ -1,9 +1,9 @@
 require "../../../spec_helper"
 
 module Ameba::Rule::Style
-  subject = RedundantParentheses.new
+  subject = ParenthesesAroundCondition.new
 
-  describe RedundantParentheses do
+  describe ParenthesesAroundCondition do
     {% for keyword in %w(if unless while until) %}
       context "{{ keyword.id }}" do
         it "reports if redundant parentheses are found" do
@@ -51,7 +51,7 @@ module Ameba::Rule::Style
         end
 
         it "allows to configure assignments" do
-          rule = Rule::Style::RedundantParentheses.new
+          rule = Rule::Style::ParenthesesAroundCondition.new
           rule.exclude_ternary = false
 
           expect_issue rule, <<-CRYSTAL
@@ -75,7 +75,7 @@ module Ameba::Rule::Style
         end
       end
 
-      context "#parenthesized_assignments=" do
+      context "#allow_safe_assignment=" do
         it "reports assignments by default" do
           expect_issue subject, <<-CRYSTAL
             if (foo = @foo)
@@ -98,8 +98,8 @@ module Ameba::Rule::Style
         end
 
         it "allows to configure assignments" do
-          rule = Rule::Style::RedundantParentheses.new
-          rule.parenthesized_assignments = true
+          rule = Rule::Style::ParenthesesAroundCondition.new
+          rule.allow_safe_assignment = true
 
           expect_issue rule, <<-CRYSTAL
             if foo = @foo

src/ameba/rule/style/parentheses_around_condition.cr

@@ -1,5 +1,6 @@
 module Ameba::Rule::Style
-  # A rule that disallows redundant parentheses around control expressions.
+  # A rule that checks for the presence of superfluous parentheses
+  # around the condition of `if`, `unless`, `case, `while` and `until`.
   #
   # For example, this is considered invalid:
   #
@@ -20,17 +21,17 @@ module Ameba::Rule::Style
   # YAML configuration example:
   #
   # ```
-  # Style/RedundantParentheses:
+  # Style/ParenthesesAroundCondition:
   #   Enabled: true
   #   ExcludeTernary: false
-  #   ParenthesizedAssignments: false
+  #   AllowSafeAssignment: false
   # ```
-  class RedundantParentheses < Base
+  class ParenthesesAroundCondition < Base
     properties do
       description "Disallows redundant parentheses around control expressions"
 
       exclude_ternary false
-      parenthesized_assignments false
+      allow_safe_assignment false
     end
 
     MSG_REDUNDANT = "Redundant parentheses"
@@ -45,7 +46,7 @@ module Ameba::Rule::Style
       when Crystal::Yield
         !in_ternary || node.has_parentheses? || node.exps.empty?
       when Crystal::Assign, Crystal::OpAssign, Crystal::MultiAssign
-        !in_ternary && !parenthesized_assignments
+        !in_ternary && !allow_safe_assignment
       else
         true
       end
@@ -54,7 +55,7 @@ module Ameba::Rule::Style
     def test(source, node : Crystal::If | Crystal::Unless | Crystal::Case | Crystal::While | Crystal::Until)
       cond = node.cond
 
-      if cond.is_a?(Crystal::Assign) && parenthesized_assignments
+      if cond.is_a?(Crystal::Assign) && allow_safe_assignment
         issue_for cond, MSG_MISSING do |corrector|
           corrector.insert_before(cond, '(')
           corrector.insert_after(cond, ')')