ã¿ã‚“ãªRailsã®STIを誤解ã—ã¦ãªã„ã‹!? - Qiita
ãªã€ãªã‚‹ã»ã©...!? ã„ã‚„ã€ã¿ã‚“ãªã¡ã‚‡ã£ã¨èª¤è§£ã—ã¦ã‚‹ã‚“ã˜ã‚ƒãªã„ã‹? よーã—ã€ãŠçˆ¶ã•ã‚“ã€ã¿ã‚“ãªãŒSTIを使ã„ãŸããªã‚‹ã‚ˆã†ã«ã¡ã‚‡ã£ã¨é ‘å¼µã£ã¡ã‚ƒã†ãž! STIã¨ã¯ STIã¯ã€å˜ä¸€ã®ç¶™æ‰¿éšŽå±¤ã«æ‰€å±žã™ã‚‹ã‚¯ãƒ©ã‚¹ç¾¤ã‚’ã€ãŸã ã²ã¨ã¤ã®ãƒ†ãƒ¼ãƒ–ルを使ã£ã¦æ°¸ç¶šåŒ–ã™ã‚‹æ‰‹æ³•ã§ã™ã€‚ PofEAA Railsã®ãƒ‰ã‚ュメントをæ¼ã‚‹ã¨ã€æ¬¡ã®ã‚ˆã†ãªè¨˜è¿°ãŒè¦‹ã¤ã‹ã‚Šã¾ã™ã€‚ http://api.rubyonrails.org/classes/ActiveRecord/Inheritance.html Note, all the attributes for all the cases are kept in the same table. Read more: www.martinfowler.com/eaaCatalog/singleTableInheritance.html ã“ã®ãƒªãƒ³ã‚¯å…ˆã¯ã€ãƒªãƒ•ã‚¡ã‚¯ã‚¿ãƒªãƒ³ã‚°ã§æœ‰åãªMarti
Java ã§ã¡ã‚‡ã£ã¨ã—ãŸãƒ‘ーサーを実装ã™ã‚‹ã¨ã㯠ANTLR4 ãŒä¾¿åˆ© - tokuhirom's blog
Java ã§ã¡ã‚‡ã£ã¨ã—ãŸDSLパーサーを実装ã™ã‚‹ã¨ãã¯ANTLR4 ãŒæœ€è¿‘もデファクトスタンダードãªã®ã‹ãªã‚。ã¨æ€ã£ã¦ã„ã¾ã™ã€‚ ANTLR4 ã¯ãƒ‘ーサージェãƒãƒ¬ãƒ¼ã‚¿ãƒ¼ã§ã™ã€‚BNF ã£ã½ã„記法ã§æ›¸ã„ãŸã‚‰ã„ã„æ„Ÿã˜ã«ç”Ÿæˆã—ã¦ãã‚Œã¾ã™ã€‚手書ãパーサーã¨ã‹ã«æ¯”ã¹ã‚‹ã¨ç®¡ç†ã—ã‚„ã™ã„æ°—ãŒã—ã¾ã™ã€‚ gradle ã¯ã‚³ã‚¢ãƒ—ラグイン㫠antlr プラグインãŒã‚ã‚‹ã®ã§ç°¡å˜ã«åˆ©ç”¨ã§ãã¾ã™ã€‚ https://docs.gradle.org/current/userguide/antlr_plugin.html group 'com.example' apply plugin: 'java' apply plugin: 'antlr' sourceCompatibility = 1.8 repositories { mavenCentral() } dependencies { antlr "org.antlr:an
Launching Ignition and TurboFan · V8
Show navigation Today we are excited to announce the launch of a new JavaScript execution pipeline for V8 v5.9 that will reach Chrome Stable in v59. With the new pipeline, we achieve big performance improvements and significant memory savings on real-world JavaScript applications. We’ll discuss the numbers in more detail at the end of this post, but first let’s take a look at the pipeline itself.
リリースã€éšœå®³æƒ…å ±ãªã©ã®ã‚µãƒ¼ãƒ“スã®ãŠçŸ¥ã‚‰ã›
最新ã®äººæ°—エントリーã®é…ä¿¡
処ç†ã‚’実行ä¸ã§ã™
j次ã®ãƒ–ックマーク
kå‰ã®ãƒ–ックマーク
lã‚ã¨ã§èªã‚€
eコメント一覧を開ã
oページを開ã
GitHub - uupaa/Docker: Docker tools and documents.
{{#tags}}- {{label}}
{{/tags}}