From ce4dd7236a9d829a566187208a55ff4a3955d426 Mon Sep 17 00:00:00 2001 From: Sijawusz Pur Rahnama Date: Sun, 18 Dec 2022 20:17:06 +0100 Subject: [PATCH] Make `Lint/NotNilAfterNoBang` report calls to `#rindex` --- .../rule/lint/not_nil_after_no_bang_spec.cr | 24 +++++++++++++++++++ src/ameba/rule/lint/not_nil_after_no_bang.cr | 9 +++---- 2 files changed, 29 insertions(+), 4 deletions(-) diff --git a/spec/ameba/rule/lint/not_nil_after_no_bang_spec.cr b/spec/ameba/rule/lint/not_nil_after_no_bang_spec.cr index 954d0d7a..89bf97ae 100644 --- a/spec/ameba/rule/lint/not_nil_after_no_bang_spec.cr +++ b/spec/ameba/rule/lint/not_nil_after_no_bang_spec.cr @@ -7,7 +7,9 @@ module Ameba::Rule::Lint it "passes for valid cases" do expect_no_issues subject, <<-CRYSTAL (1..3).index(1).not_nil!(:foo) + (1..3).rindex(1).not_nil!(:foo) (1..3).index { |i| i > 2 }.not_nil!(:foo) + (1..3).rindex { |i| i > 2 }.not_nil!(:foo) (1..3).find { |i| i > 2 }.not_nil!(:foo) CRYSTAL end @@ -23,6 +25,17 @@ module Ameba::Rule::Lint CRYSTAL end + it "reports if there is an `rindex` call followed by `not_nil!`" do + source = expect_issue subject, <<-CRYSTAL + (1..3).rindex(1).not_nil! + # ^^^^^^^^^^^^^^^^^^ error: Use `rindex! {...}` instead of `rindex {...}.not_nil!` + CRYSTAL + + expect_correction source, <<-CRYSTAL + (1..3).rindex!(1) + CRYSTAL + end + it "reports if there is an `index` call with block followed by `not_nil!`" do source = expect_issue subject, <<-CRYSTAL (1..3).index { |i| i > 2 }.not_nil! @@ -34,6 +47,17 @@ module Ameba::Rule::Lint CRYSTAL end + it "reports if there is an `rindex` call with block followed by `not_nil!`" do + source = expect_issue subject, <<-CRYSTAL + (1..3).rindex { |i| i > 2 }.not_nil! + # ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: Use `rindex! {...}` instead of `rindex {...}.not_nil!` + CRYSTAL + + expect_correction source, <<-CRYSTAL + (1..3).rindex! { |i| i > 2 } + CRYSTAL + end + it "reports if there is a `find` call with block followed by `not_nil!`" do source = expect_issue subject, <<-CRYSTAL (1..3).find { |i| i > 2 }.not_nil! diff --git a/src/ameba/rule/lint/not_nil_after_no_bang.cr b/src/ameba/rule/lint/not_nil_after_no_bang.cr index e0dab6e0..bc697647 100644 --- a/src/ameba/rule/lint/not_nil_after_no_bang.cr +++ b/src/ameba/rule/lint/not_nil_after_no_bang.cr @@ -1,5 +1,6 @@ module Ameba::Rule::Lint - # This rule is used to identify usage of `index/find` calls followed by `not_nil!`. + # This rule is used to identify usage of `index/rindex/find` calls + # followed by a call to `not_nil!`. # # For example, this is considered a code smell: # @@ -23,11 +24,11 @@ module Ameba::Rule::Lint include AST::Util properties do - description "Identifies usage of `index/find` calls followed by `not_nil!`" + description "Identifies usage of `index/rindex/find` calls followed by `not_nil!`" end - BLOCK_CALL_NAMES = %w(index find) - CALL_NAMES = %w(index) + BLOCK_CALL_NAMES = %w(index rindex find) + CALL_NAMES = %w(index rindex) NOT_NIL_NAME = "not_nil!" MSG = "Use `%s! {...}` instead of `%s {...}.not_nil!`"