Kuniwak

Major linter の戦略と実装

Perl::Critic

• 構文解析器: PPI
• ポリシーはオブジェクト: Perl::Critic::Policy
• 違反もオブジェクト: Perl::Critic::Violation
• 処理の流れ
  1. 有効な検査ポリシーが設定される
  2. 検査ポリシーごとに以下を繰り返す（Perl::Critic#_gather_violations $doc : @violations）

1. 検査ポリシーが解析に必要な要素名を宣言する（Perl::Critic::Policy#applies_to : String[]）

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Perl::Criticのエラー

これの車輪の再発明っぽい: PolicySummary.pod

Perl::Critic の警告	内容
ProhibitBooleanGrep	Use List::MoreUtils::any instead of grep in boolean context.
ProhibitComplexMappings	Map blocks should have a single statement.
ProhibitLvalueSubstr	Use 4-argument substr instead of writing substr($foo, 2, 6) = $bar.

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tmux cheetsheet

Command

command name	command
start new	tmux
start new with session name	tmux new -s name

Kuniwak

Quiz1

#!/usr/bin/env perl
use strict;
use warnings;

print 1;

BEGIN {

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$ git commit

Kuniwak

stmt	left	list	op	rest	right	type
let num = 0	identifier		=		number	let
let dict[key] = 0	dot		=		number	let
let list[0] = 99	subscript		=		number	let
let list[1:2] = [99, 99]	slice		=		list	let
let str .= 'str_to_add'	identifier		.=		number	let
let $ENV = 'str_content'	env		=		string	let
let @@ = 'str_content'	reg		=		string	let
let [elem0, elem1] = [0, 1]		[identifier, identifier]	=		list	let

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1. identifier が定義・参照・静的解析不能を判別
   • IdentifierClassifier
   • IdentifierCollector
2. Scope chain を作成
   • ScopeStore
3. declaring identifier を scope に登録、scope を referencing identifier に登録
   • ScopeLinker
4. referencing identifier から declaring identifier に到達可能かどうかを調べる
   • ParentAttacher
   • ReferenceReachabilityTester

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pip install vim-vint

Kuniwak

map <C-u> scrollPageUp
map <C-d> scrollPageDown
map <C-h> deleteChar

cunmap <C-h>

let scrollstep = 200

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// Compile-Time 4-bit Adder for TypeScript
// Author: https://github.com/Kuniwak

// INTPUT ////////////////////////////////
//   O: Low
//   I: High

let inputA1: I;
let inputA2: I;
let inputA3: O;